Real Time Touch



new TOP 200 Companies filing patents this week

new Companies with the Most Patent Filings (2010+)




Real Time Touch

Biosense Webster Inc patents


Recent patent applications related to Biosense Webster Inc. Biosense Webster Inc is listed as an Agent/Assignee. Note: Biosense Webster Inc may have other listings under different names/spellings. We're not affiliated with Biosense Webster Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "B" | Biosense Webster Inc-related inventors


Catheter with improved loop contraction and greater contraction displacement

A catheter with a variable circular loop is responsive to a contraction wire for increasing the coiling of the circular loop. The shape of the loop is supported by an elongated member, wherein a radially constrictive sleeve confines the contraction wire to extends immediately alongside the length of elongated member so as to improve uniformity and minimize misshaping of the loop during contraction.. ... Biosense Webster Inc

Catheter with deformable distal electrode

A catheter probe configured with a capability to present a larger tissue contact area or “footprint” for larger, deeper lesions, without increasing the french size of the catheter, especially its distal section, includes an elastically deformable electrode configured to adopt a neutral configuration and a tissue contact configuration. The deformable electrode comprising a hollow porous tube with a distal portion having a closed distal end, and a proximal portion defining an opening to an interior of the tube, where the distal tip end is received in the tube through the opening and the distal section is generally surrounded by tube, with the proximal portion being affixed to an outer surface of the distal section. ... Biosense Webster Inc

Touch free operation of ablator workstation by use of depth sensors

An inventive system and method for touch free operation of an ablation workstation is presented. The system can comprise a depth sensor for detecting a movement, motion software to receive the detected movement from the depth sensor, deduce a gesture based on the detected movement, and filter the gesture to accept an applicable gesture, and client software to receive the applicable gesture at a client computer in an ablation workstation for performing a task in accordance with client logic based on the applicable gesture. ... Biosense Webster Inc

Safe ablation of eustachian tube epithelum

Described embodiments include a method that includes inserting an ablation catheter into a eustachian tube of a subject, and, using the ablation catheter, while the subject is awake, passing an ablating signal, which is audible to the subject, through epithelial cells that line the eustachian tube, while controlling an amplitude of the ablating signal responsively to a loudness of the ablating signal as perceived by the subject. Other embodiments are also described.. ... Biosense Webster Inc

Sensor for facilitating catheter visualization

Described embodiments include apparatus for use with a catheter. The apparatus includes a sheath configured for insertion into a body of a subject, and a sensor, coupled to the sheath, configured to detect an electric current passing through the catheter, when the catheter passes through the sheath and into the body of the subject. ... Biosense Webster Inc

Estimation of tissue thickness from rate of change of catheter temperature

Apparatus, consisting of a probe having a distal end that is configured to be inserted into contact with tissue. An electrode is attached to the distal end, and there is a temperature sensor incorporated in the distal end and configured to output a temperature signal. ... Biosense Webster Inc

Simultaneous control of power and irrigation during ablation

Apparatus, consisting of a probe configured to be inserted into contact with a myocardium, and an electrode attached to the probe. A temperature sensor, incorporated in the probe, is configured to output a temperature signal. ... Biosense Webster Inc

Remote control and interaction with implanted devices

A method for interaction with a medical device that is implanted in a body of a patient. The method includes detecting, using an inertial sensor, an arcuate motion of a wireless communication device terminating in physical contact between the wireless communication device and the body. ... Biosense Webster Inc

Heat expandable breast implant using induction heating

A selectively expandable breast implant and method for tissue expansion are provided herein. The implant includes a flexible shell, an expandable material inside the flexible shell, and a plurality of closed conducting loops within the expandable material. ... Biosense Webster Inc

Irrigated catheter with internal position sensor

A catheter carries a position sensor in a distal, on-axis position in an irrigated ablation tip electrode. The tip electrode has a shell wall that defines a cavity through which fluid flows and exits via fluid ports formed in the shell wall. ... Biosense Webster Inc

Catheter identification system and method

A system and method for identifying a catheter inserted in a patient's body is provided. The system may comprise a catheter comprising a handle, a console comprising an input device, a display screen configured to depict an image of the catheter inside the patient's body, and a processor configured to receive a color parameter from the input device. ... Biosense Webster Inc

Catheter with stacked spine electrode assembly

A catheter comprising an elongated catheter body, an electrode array distal of the catheter body, the array having a mounting member and at least first and second spine supports. Each spine support includes a base having a planar configuration, and a plurality of spines extending from the base, wherein the first base extends in a first plane and the second base extends in a second plane different from the first plane in the mounting member.. ... Biosense Webster Inc

Peristaltic pump with reduced triboelectric effects

A pump for use with a tube, having a rotor having an axis of rotation and a plurality of rollers configured to define an orbital path about the axis of rotation, the orbital path defined by a radius, and a roller bed having a surface adapted to support the tube for peristaltic compression by one or more rollers, wherein the surface has a predetermined profile comprising a circular arc segment and at least one side segment, the arc segment having a first curvature defined by the radius, and the at least one side segment having a second curvature lesser than the first curvature.. . ... Biosense Webster Inc

Planetary gear assembly for sputtering multiple balloon catheter distal ends

An apparatus includes an assembly and hollow templates. The assembly includes multiple hinges mounted thereon. ... Biosense Webster Inc

08/16/18 / #20180228541

Irrigated ablation catheter with improved fluid flow

An irrigated ablation catheter includes a tip electrode with a thin shell and a plug, defining a plenum chamber. The tip electrode has an inlet of a predetermined size and noncircular shape, and a predetermined number of outlet fluid ports having a predetermined diameter in the shell wall. ... Biosense Webster Inc

08/16/18 / #20180228534

Interleaved ablation electrodes

A medical instrument includes an inflatable balloon and first and second electrodes. The inflatable balloon is coupled to a distal end of a catheter. ... Biosense Webster Inc

08/16/18 / #20180228529

Tissue thickness using pulsed power

Catheterization is carried out by bringing an electrode that is disposed on a distal portion of a catheter into contact with tissue, wherein the electrode has an area that falls within a range of 0.01-25 mm2. A power generator delivers pulses of radiofrequency power through the electrode to the tissue. ... Biosense Webster Inc

08/16/18 / #20180228439

Basket-shaped catheter with improved distal hub

This disclosure is directed to a catheter having a basket-shaped electrode assembly with a high electrode density. The basket-shaped electrode assembly may have a plurality of spines, such as up to twelve, each with a plurality of electrodes, such as up to sixteen. ... Biosense Webster Inc

08/16/18 / #20180228402

Estimation of tissue thickness

A method, including performing an initial ablation of a tissue using an electrode in a probe distal end to apply a first power to the tissue, and measuring a change of temperature of the distal end while applying the first power. The method also includes estimating a thickness of the tissue in response to the measured change of temperature, and in response to the estimated thickness, computing at least one of a second power required and a time period for ablation, to complete ablation of the tissue. ... Biosense Webster Inc

08/16/18 / #20180228393

Electrophysiologic device construction

An electrophysiologic device may be constructed with an elongated body having proximal and distal ends a lumen. At least one coil may be formed around a distal portion of the elongated body from a plurality of helical wraps of a continuous wire that extends to the proximal end of the elongated body through the lumen. ... Biosense Webster Inc

08/16/18 / #20180228392

Multi-axial position sensors printed on a folded flexible circuit board

A position sensor includes a flexible substrate formed into a three-dimensional (3d) shape. At least first and second field-sensing coils are formed in first and second respective layers of the flexible substrate, such that in the 3d shape the first and second field-sensing coils have first and second respective axes that are not parallel to one another.. ... Biosense Webster Inc

08/09/18 / #20180221624

System for indicating catheter deflection

Apparatus, consisting of a probe, having a proximal end and a distal end, which is deflectable in first and second directions. The apparatus includes a probe manipulator, which is coupled to the proximal end of the probe and has first and second tactile control elements. ... Biosense Webster Inc

08/09/18 / #20180221088

Temperature measurement in catheter

Ablation of cardiac tissue is carried out by inserting a probe having an ablation electrode and a plurality of microelectrodes into a body of a living subject to establish contact between two of the microelectrodes and target tissue, and energizing the ablation electrode. While the ablation electrode is energized impedances are measured between the microelectrodes, and the power level of the ablation electrode adjusted according to the impedances.. ... Biosense Webster Inc

08/09/18 / #20180220930

Catheter with combined position and pressure sensing structures

A catheter is responsive to external and internal magnetic field generators for generating position data of the catheter position and pressure data to determine pressured exerted on a distal end of the catheter when engaged with tissue, with a reduced number of sensing coils and reduced number of sensing coil leads for minimizing lead breakage and failure. The catheter includes a distal section adapted for engagement with patient tissue, where the distal section has a proximal portion, a distal portion and a flexible joint with a resilient member adapted to allow axial displacement and angular deflection between the proximal and distal portions of the distal section. ... Biosense Webster Inc

08/02/18 / #20180219317

Preventing unwanted contact between terminals

Apparatus and methods are described, including apparatus that includes a male-connector body comprising at least one mating surface, and shaped to define a hollow core. A plurality of electrically-conductive male-connector terminals are coupled to the mating surface of the male-connector body. ... Biosense Webster Inc

08/02/18 / #20180214170

Surgical cutting instrument with extended blades

An extended blade of a surgical cutting instrument is provided. The blade may comprise a distal cutting end, a distal non-cutting end, and an intermediate portion that extends coaxially from the distal cutting end to the distal non-cutting end. ... Biosense Webster Inc

07/26/18 / #20180207404

Deflectable catheter with a flexibly attached tip section

A catheter for mapping and/or ablating a region of the heart includes an intermediate section that is connected to a tip assembly at a preset angle by a flexible preshaped section that is more flexible than the intermediate section. The flexible section may absorb displacement force applied to the tip assembly, such as when the tip assembly encounters uneven tissue surface, without displacing the intermediate section. ... Biosense Webster Inc

07/26/18 / #20180207400

Magnetically guided catheter with concentric needle port

A catheter for ablation, mapping, injection, and directional control by an external magnetic system has a catheter body, an intermediate section, and a tip section having a tip electrode with an omnidirectional distal end and a concentric needle port. The tip electrode houses a magnetic device and a position sensor in an integrated configuration that facilitates a path in the tip section for extension and retraction of a component, including an injection needle, with reduced stress and friction. ... Biosense Webster Inc

07/26/18 / #20180206921

Analyzing and mapping ecg signals and determining ablation points to eliminate brugada syndrome

A system and method for brugada syndrome epicardial ablation comprising preparing an endocardial duration map; preparing a baseline epicardial duration map comprising at least one or more areas of delimination; and when some of the areas of delimination are greater than 200 ms, performing epicardial ablation of the areas of delimination greater than 200 ms. The method may further comprise preparing an updated epicardial duration map after performing epicardial ablation, and determining whether or not a brs pattern appears in the updated epicardial duration map; and when the brs pattern appears, performing epicardial ablation. ... Biosense Webster Inc

07/26/18 / #20180206920

Method and system for eliminating a broad range of cardiac conditions by analyzing intracardiac signals providing a detailed map and determining potential ablation points

A system and method for improving ablation procedures is presented. The method may comprise measuring egm signals; performing three dimensional mapping of the egm signals; and detecting a location for ablation based on the mapping. ... Biosense Webster Inc

07/26/18 / #20180206914

Double loop lasso with single puller wire for bi-directional actuation

A catheter has a distal assembly with at least one loop with ring electrodes. A single continuous puller wire for bidirectional deflection is pre-bent into two long portions and a u-shape bend therebetween. ... Biosense Webster Inc

07/26/18 / #20180206792

Basket catheter made from flexible circuit board with mechanical strengthening

A catheter includes a shaft for insertion into an organ of a patient, an extendable distal-end assembly, and two or more strengthening elements. The extendable distal-end assembly is coupled to the shaft and includes multiple splines, at least one spline includes a flexible circuit board having one or more electrodes disposed thereon, the circuit board is configured, when the distal-end assembly is extended in the organ, to conform to a surface of the organ so as to make contact between the electrodes and the surface. ... Biosense Webster Inc

07/26/18 / #20180206750

Analyzing and mapping ecg signals and determining ablation points to eliminate brugada syndrome

A system and method for brugada syndrome epicardial ablation comprising preparing an endocardial duration map; preparing a baseline epicardial duration map comprising at least one or more areas of delimination; and when some of the areas of delimination are greater than 200 ms, performing epicardial ablation of the areas of delimination greater than 200 ms. The method may further comprise preparing an updated epicardial duration map after performing epicardial ablation, and determining whether or not a brs pattern appears in the updated epicardial duration map; and when the brs pattern appears, performing epicardial ablation. ... Biosense Webster Inc

07/19/18 / #20180199992

Irrigated ablation catheter having irrigation ports with reduced hydraulic resistance

An irrigated ablation catheter includes a tip electrode with a thin shell and a plug to provide a plenum chamber. The tip electrode has an inlet of a predetermined size and noncircular shape, and outlets in the form of fluid ports formed in the thin shell wall. ... Biosense Webster Inc

07/19/18 / #20180199990

Enhancing efficiency of repeat ablation by merging current and previous maps

A method for cardiac treatment, which includes acquiring and saving an initial map of a chamber of a heart of a patient in an initial ablation procedure, with locations of ablation lesions marked on the initial map. In preparation for a redo ablation procedure, subsequent to the initial ablation procedure, a current map of the chamber is acquired, the initial map is registered with the current map, and the locations of the ablation lesions from the registered initial map are marked and displayed on the current map.. ... Biosense Webster Inc

07/19/18 / #20180199897

Seeing through mucus in an ent procedure

A method for radiographic imaging of a body cavity includes imaging the body cavity using computerized tomography (ct) to form a ct image, registering a tracking system with the ct image, inserting into the body cavity a guidewire, including a position sensor, operating in the tracking system, attached to a distal end of the guidewire, in response to signals from the position sensor acquired by the tracking system, displaying a position of the distal end of the guidewire on the ct image. The method further includes assigning voxels within a predefined imaging volume relative to the distal end and having a radiodensity less than a predetermined threshold to have a uniform radiodensity of a predefined default value, incorporating the voxels with the assigned predefined default value into the ct image so as to form an updated ct image, and displaying the updated ct image.. ... Biosense Webster Inc

07/12/18 / #20180193089

Catheter with supporting structure having variable dimensions

This disclosure is directed to a catheter having a multi-electrode assembly with a high electrode density. The multi-electrode assembly may be a basket-shaped electrode assembly or a brush-shaped electrode assembly each having a plurality of spines. ... Biosense Webster Inc

07/12/18 / #20180193052

Combined debrider and coagulator

A medical apparatus, including an insertion tube that includes an outer tube having a proximal end and a distal end configured for insertion into a body cavity, with a radial cutting window opening through a wall of the outer tube in proximity to the distal end. The insertion tube also includes an inner tube, contained in and configured to rotate within the outer tube and including a cutting blade that traverses the radial cutting window opening as the inner tube rotates. ... Biosense Webster Inc

07/12/18 / #20180192958

Multi-electrode assembly with controlled folding mechanism

This disclosure is directed to a catheter having a multi-electrode assembly with a high electrode density. The multi-electrode assembly may be a basket-shaped electrode assembly or a brush-shaped electrode assembly each having a plurality of spines. ... Biosense Webster Inc

07/12/18 / #20180192904

Catheter spine assembly with closely-spaced bipole microelectrodes

An electrophysiologic catheter with a distal electrode assembly carrying very closely-spaced bipole microelectrodes on a plurality of divergent spines that can flexibly spread over tissue surface area minimized detection of undesirable noise, including far-field signals. Each spine has a flexible microelectrode panel having a substrate, at least one pair of microelectrodes, a trace for each microelectrode, and a soldering pad. ... Biosense Webster Inc

07/05/18 / #20180190009

Selecting points on an electroanatomical map

Described embodiments include a system that includes a display and a processor. The processor is configured to position an indicator, in response to a positioning input from a user, over a particular point on a three-dimensional electroanatomical map that is displayed on the display, and over which are displayed a plurality of markers that mark respective data points. ... Biosense Webster Inc

07/05/18 / #20180189969

Visualization of distances on an electroanatomical map

Described embodiments include an apparatus that includes a display and processor. The processor is configured to receive, from a user, an input that indicates one or more points of interest on an electroanatomical map, of an anatomical surface, that is displayed on the display, and to superimpose on the map, in response to the input, a plurality of contours, each one of the contours being at a different respective geodesic distance, with respect to the surface, from the points of interest. ... Biosense Webster Inc

07/05/18 / #20180185532

Hydrogen peroxide sterilizer with multiple uv sensors

Sterilization is carried out by admitting a flow of sterilant fluid into a sterilization chamber through an inlet, emitting ultraviolet light into the chamber, receiving the ultraviolet light in a plurality of ultraviolet light detectors disposed at respective locations; and regulating the flow of the sterilant fluid responsively to signals from the detectors to achieve a desired level of the sterilant fluid in the chamber.. . ... Biosense Webster Inc

07/05/18 / #20180184982

Hybrid balloon basket catheter

This disclosure includes a hybrid electrode assembly mounted at the distal end of the catheter body having at least two spines and an inflatable balloon such that the inflatable balloon is disposed within the spines when in an expanded arrangement. The hybrid electrode assembly has a non-projecting distal portion when in the expanded arrangement.. ... Biosense Webster Inc

06/28/18 / #20180182159

Fast rendering of quadrics and marking of silhouettes thereof

Described embodiments include an apparatus that includes a display, including a screen, and a processor. The processor is configured to define a bounding region on the screen. ... Biosense Webster Inc

06/28/18 / #20180182157

Fast rendering of quadrics

Described embodiments include an apparatus that includes a display, including a screen, and a processor. The processor is configured to define a bounding region on the screen. ... Biosense Webster Inc

06/28/18 / #20180180684

Triple axis sensor on a single layer printed circuit

Apparatus, including a flexible insulating substrate, having a first side and a second side, rolled about an axis parallel to the substrate. The apparatus also includes a first conducting spiral that is right-handed relative to a normal to the substrate, and a second conducting spiral that is left-handed relative to the normal, formed on the first side of the substrate. ... Biosense Webster Inc

06/28/18 / #20180177977

Modular catheter packaging

A catheter packaging includes a catheter tray, having a bottom, a raised edge connected to and surrounding the bottom, a first matrix of holes perforated through the bottom, and a protuberance protruding above a portion of the bottom, the protuberance being dimensioned to raise a distal end of a catheter attached to the protuberance by a predetermined height above the bottom. The protuberance includes a second matrix of holes perforated through the protuberance. ... Biosense Webster Inc

06/28/18 / #20180177552

Interactive anatomical mapping and estimation of anatomical mapping quality

A method includes receiving an anatomical mapping that includes multiple measurements acquired at multiple respective locations within an organ of a patient. An estimated surface of the organ is computed based on the measurements. ... Biosense Webster Inc

06/28/18 / #20180177547

Catheter with tapered support member for variable arcuate distal assembly

A catheter with a variable circular loop responsive to a contraction wire for coiling is supported by a member having a tapered distal section that transitions from a circular cross-section to a generally rectangular cross-section while maintaining a uniform cross-sectional area along the entire tapered length for improved coiling characteristics. A radially constrictive sleeve prevents separation of the contraction wire from the support member to minimize misshaping of the loop during contraction.. ... Biosense Webster Inc

06/28/18 / #20180177467

Pulmonary vein display in two dimensions

A method for data display includes acquiring a three-dimensional (3d) map of a lumen inside a body of a subject, transforming the 3d map of the lumen into a two-dimensional (2d) image by projecting the 3d map onto an annulus, and presenting the 2d image on a display screen.. . ... Biosense Webster Inc

06/21/18 / #20180169385

Two-piece catheter handle

Described embodiments include an apparatus that includes an intrabody catheter and a distal handle-piece connected to the intrabody catheter. The distal handle-piece includes a distal-handle-piece connector configured to reversibly electrically couple the distal handle-piece to a proximal handle-piece via a proximal-handle-piece connector of the proximal handle-piece, such that the proximal handle-piece and the distal handle-piece are held adjacent to one another. ... Biosense Webster Inc

06/21/18 / #20180169380

Layered tube for improved kink resistance

A catheter shaft is produced by forming a first polymeric layer onto a flexible inner core while maintaining the inner core in a solid state, and solidifying the first polymeric layer, wherein the solidified first polymeric layer fails to bond with the inner core and is slidable thereon upon flexion of the shaft. A second polymeric layer may be formed over the first polymeric layer, and is slidable thereon when the shaft bends.. ... Biosense Webster Inc

06/21/18 / #20180169376

Extrusion with preferential bend axis

A catheter is made by coextruding first and second molten polymers, wherein the second molten polymer forms a flexible inner core and the first molten polymer forms exactly two bands on opposite sides of the inner core. The inner core is braided, and a third molten polymer extruded onto the braid to form a flexible jacket that encloses the braid, the bands and the inner core. ... Biosense Webster Inc

06/21/18 / #20180168726

Spring-loaded balloon

Cardiac catheterization is conducted using a probe having a balloon assembly, in which a spring has a resting axially elongated configuration and a torsed, axially shortened configuration. A balloon is twisted about the spring and mechanically linked to the spring. ... Biosense Webster Inc

06/14/18 / #20180161097

Method and apparatus for ablation planning and control

A method for visualizing ablation includes displaying to a user a three-dimensional (3d) tube that visually represents a region for ablation in tissue of a patient. Ablation information, which specifies one or more ablation locations along the 3d tube and one or more respective ablation configurations for ablating in the ablation locations, is received from the user. ... Biosense Webster Inc

06/14/18 / #20180161093

Irrigated balloon catheter with support spines and variable shape

An irrigated balloon catheter, includes a balloon carrying contact electrodes, wherein a user can vary the balloon's configuration by manipulating an elongated expander that extends along the catheter and through the balloon's interior, with its distal end coupled to a distal end of the balloon. The expander may pass through an irrigation lumen to save on space within the catheter, and the expander itself may be hollow in providing a lumen for cables or lead wires. ... Biosense Webster Inc

06/14/18 / #20180160978

Real time electroanatomical coloring of the heart

Cardiac catheterization is conducted with a probe having a plurality of sensors. The heart is displayed as a first graphic image. ... Biosense Webster Inc

06/14/18 / #20180160936

Catheter splines with embedded circuit elements

Medical apparatus includes one or more magnetic field generators, which are configured to generate magnetic fields within a body of a patient. An invasive probe includes an insertion tube having a distal end, which is configured for insertion into the body, and a plurality of flexible splines configured to be deployed from the distal end of the insertion tube. ... Biosense Webster Inc

06/07/18 / #20180158238

Updating an electroanatomical map

Described embodiments include a system for updating a mesh, which includes a plurality of vertices, representing a surface of a heart. The system includes an electrical interface and a processor. ... Biosense Webster Inc

06/07/18 / #20180154114

Steerable guiding sheath with rack and pinion deflection mechanism

A guiding sheath has a braided layer for improved deflection characteristics and ring electrodes for electrical sensing, mapping and visualization, wherein lead wires for the ring electrodes are passed through lumened tubing position under the braided layer in a proximal portion of the guiding sheath shaft and above the braided layer in a distal portion of the guiding sheath shaft. Moreover, the hemostatic valve includes an improved friction ring with air vents to reduce the risk of air being introduced into the valve.. ... Biosense Webster Inc

06/07/18 / #20180153434

Steerable guiding sheath with ring electrodes and related method of construction

A guiding sheath has a braided layer for improved deflection characteristics and ring electrodes for electrical sensing, mapping and visualization, wherein lead wires for the ring electrodes are passed through lumened tubing position under the braided layer in a proximal portion of the guiding sheath shaft and above the braided layer in a distal portion of the guiding sheath shaft. Moreover, the hemostatic valve includes an improved friction ring with air vents to reduce the risk of air being introduced into the valve.. ... Biosense Webster Inc

05/31/18 / #20180150983

Visualization of anatomical cavities

Described embodiments include a system that includes a display and a processor. The processor is configured to modify an image slice by filling a portion, of the image slice, that corresponds to an anatomical cavity with a representation of a wall of the anatomical cavity, and to display the modified image slice on the display. ... Biosense Webster Inc

05/31/18 / #20180147393

Guide wire restraint device

A device for restraining a guide wire includes a base having a recessed formation configured to receive a portion of the guide wire, and a flexible lid configured to fit on the base. The lid has a main sheet portion covering the portion of the guide wire and a plurality of fingers separated by gaps and extending downwardly from a peripheral edge of the main sheet portion to surround the base. ... Biosense Webster Inc

05/31/18 / #20180146884

Visualization of distances to walls of anatomical cavities

Described embodiments include a system that includes a display and a processor. The processor is configured to modify an image that includes a representation of a wall of an anatomical cavity, by overlaying an icon that represents an intrabody tool on a portion of the image that corresponds to a location of the intrabody tool within the anatomical cavity, and overlaying a marker on a portion of the representation of the wall that corresponds to a location at which the intrabody tool would meet the wall, were the intrabody tool to continue moving toward the wall in a direction in which the intrabody tool is pointing. ... Biosense Webster Inc

05/31/18 / #20180146883

Computerized tomography image correction

Methods, apparatuses and computer program products implement embodiments of the present invention that include receiving, from an imaging system operating in an image coordinate system, a three-dimensional image of a body cavity including open space and body tissue, and receiving, from a medical probe having a location sensor and inserted into the body cavity, a signal indicating a location of a distal tip of the medical probe in a sensor coordinate system. The image coordinate system is registered with the sensor coordinate system so as to identify one or more voxels in the three-dimensional image at the indicated location, and when the identified voxels have density values in the received three-dimensional image that do not correspond to the open space, the density values of the identified voxels are updated to correspond to the open space.. ... Biosense Webster Inc

05/24/18 / #20180140807

Double balloon catheter having a lobed inner balloon

An apparatus, including a flexible insertion tube having a distal end for insertion into a body cavity, and first and second conduits configured to deliver first and second fluids, respectively, to the distal end. The distal end includes a first balloon coupled to the first conduit so that the first fluid inflates the first balloon and is delivered, via one or more spray ports in the first balloon, to tissue in the body cavity, a second balloon contained within the first balloon and coupled to the second conduit so that the second fluid inflates the second balloon, and multiple splines including a flexible, resilient material and extending along a longitudinal axis of the distal end, and configured to constrain the second balloon so that inflation of the second balloon creates lobes that form, along the longitudinal axis between the lobes, channels that direct the first fluid to the spray ports.. ... Biosense Webster Inc

05/24/18 / #20180140348

Touch free operation of ablator workstation by use of depth sensors

An inventive system and method for touch free operation of an ablation workstation is presented. The system can comprise a depth sensor for detecting a movement, motion software to receive the detected movement from the depth sensor, deduce a gesture based on the detected movement, and filter the gesture to accept an applicable gesture, and client software to receive the applicable gesture at a client computer in an ablation workstation for performing a task in accordance with client logic based on the applicable gesture. ... Biosense Webster Inc

05/24/18 / #20180140212

Cardiac activation time detection

A method for characterizing an electrocardiogram, including receiving a first unipolar signal from a first location of a heart and a second unipolar signal from a second location of the heart. The method further includes generating a bipolar signal from the first and second unipolar signals, and analyzing the bipolar signal to delineate a time period during which the first and second locations generate a bipolar complex. ... Biosense Webster Inc

05/17/18 / #20180137687

Marking sparse areas on maps

Values of a physiologic parameter at respective measured points in a heart are obtained. A 3-dimensional model of the heart is constructed, which includes first spatial elements that include the measured points and second spatial elements that do not include the measured points. ... Biosense Webster Inc

05/17/18 / #20180132749

Asic with switching noise reduction

Medical catheterization is carried out by receiving a plurality of analog bioelectric signals in respective channels and multiplexing the bioelectric signals in respective selection events. The selection events comprise making a first connection with a reference voltage, thereafter breaking the first connection and making a second connection with one of the bioelectric signals. ... Biosense Webster Inc

05/17/18 / #20180132740

Catheter with improved safety line for distal tip and related method

A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The support member is formed with a u-shaped passage for a safety line to wrap around and secure the support member (with the shell affixed thereto) to the catheter. ... Biosense Webster Inc

05/10/18 / #20180126123

Catheter with serially connected sensing structures and methods of calibration and detection

A catheter is responsive to external and internal magnetic field generators for generating signals representing position and pressure data, with a reduced number of sensing coil leads for minimizing lead breakage and failure. The catheter includes a flexible joint with pressure sensing and position coils, at least pair of a pressure sensing coil and a position coil are serially connected. ... Biosense Webster Inc

05/10/18 / #20180125576

Multi-electrode catheter for preventing physiological fluid flow restriction

A medical apparatus, used to acquire electrical activity of patient anatomy, is provided which includes an elongated body and a tip portion coupled to the elongated body. The tip portion includes one or more inflatable sections. ... Biosense Webster Inc

05/10/18 / #20180125382

Coils formed in folded nitinol sheet

A contact force sensor is constructed using a spring in which a resilient member is interposed between two contacting elements. Extensions connected to the resilient member are in contact with the elements. ... Biosense Webster Inc

05/10/18 / #20180125367

Mri thermography for cardiac lesion assessment

Described embodiments include an apparatus that includes an electrical interface and a processor. The processor is configured to receive via the electrical interface, from a plurality of sensors, a first signal that indicates a location of an intrabody tool inside a body of a subject, and a second signal that indicates a phase, of a physiological motion cycle of the subject, at which the first signal was acquired. ... Biosense Webster Inc

05/03/18 / #20180116716

Catheter adapted for use with guide wire for accessing vessels

An ablation catheter adapted for use with a guide wire has a 3-d shaped portion that carries ring electrodes for ablating a vessel or tubular region, including the renal artery. The 3-d shaped portion, for example, a helical portion, enables the ring electrodes to contact an inner surface of the vessel at a plurality of locations at different depths along the vessel to form a conduction block without forming a closed conduction loop which would otherwise increase the risk of stenosis of the vessel. ... Biosense Webster Inc

05/03/18 / #20180116550

Rigid ent tool

Apparatus, including a rigid tube enclosing a lumen, configured to be inserted into a cavity of a human patient. A groove is formed in a distal end of the tube, and a conductive coil of insulated wiring is wound in the groove. ... Biosense Webster Inc

04/19/18 / #20180104000

Catheter with angled irrigation holes

A medical probe for insertion has at least one distal electrode coupled to an energy source to apply energy to tissue inside the body. A plurality of apertures are formed in the electrode. ... Biosense Webster Inc

04/12/18 / #20180101950

Registration of a magnetic tracking system with an imaging device

Described embodiments include a processor that receives signals from a probe, as the probe is placed at respective locations on a body of a subject, and derives, from the signals, a set of points that correspond to the respective locations. The processor then registers the set of points with a three-dimensional image of the body, by identifying, for each of the points, one or more voxels of the image whose respective surface normals are oriented within a given angle of an orientation at which the probe was held at the location to which the point corresponds, and computing a transformation that aligns each of the points with a selected one of the voxels that were identified for the point. ... Biosense Webster Inc

04/12/18 / #20180098816

Pre-operative registration of anatomical images with a position-tracking system using ultrasound

A method includes receiving multiple measurements, acquired using a registration tool including an ultrasound (us) transducer and a position sensor of a position-tracking system. The measurements are acquired by attaching the tool to multiple locations on a patient head and acquiring position measurements of the position sensor and respective us measurements of bone tissue at the locations. ... Biosense Webster Inc

03/29/18 / #20180085210

Detection of leakage in implants

An implant includes a hollow biocompatible shell, first and second electrodes, filling material, and circuitry. The hollow biocompatible shell is configured to be implanted in an organ of a patient. ... Biosense Webster Inc

03/29/18 / #20180085064

Basket catheter conforming to organ using strain-relief elements

A catheter includes a shaft for insertion into an organ of a patient, and an extendable distal-end assembly. The distal-end assembly is coupled to the shaft and includes multiple splines. ... Biosense Webster Inc

03/15/18 / #20180071017

Ablation catheter with a flexible printed circuit board

. . Described embodiments include apparatus that includes a catheter and a tip electrode, at a distal end of the catheter, shaped to define a plurality of microelectrode apertures. The apparatus further includes at least one printed circuit board (pcb) disposed within a lumen of the catheter, and a plurality of microelectrodes coupled to the pcb and at least partly situated within the microelectrode apertures, the pcb being configured to carry signals from the microelectrodes. ... Biosense Webster Inc

03/15/18 / #20180071016

Irrigation system for a catheter

Described embodiments include apparatus that includes a catheter and a tip electrode, at a distal end of the catheter, shaped to define a plurality of fluid apertures. A structure, within the tip electrode, is configured such that fluid passed distally through a lumen of the catheter flows in a longitudinal direction through a space between the structure and an inner surface of the tip electrode, prior to exiting through the fluid apertures. ... Biosense Webster Inc

03/15/18 / #20180071009

Ablation catheter with strain gauges

Described embodiments include apparatus that includes a catheter. A tube, at a distal portion of the catheter, includes a plurality of segments that are at least partly disconnected from each other, and a plurality of bridges that span respective neighboring pairs of the segments. ... Biosense Webster Inc

03/15/18 / #20180070981

Debrider with multiple flushing orifices

A surgical apparatus includes a debriding device, a hollow tube, and an irrigation assembly. The debriding device is fitted at a distal end of the surgical apparatus and is configured to debride tissue from a debriding site in a patient body. ... Biosense Webster Inc

03/15/18 / #20180070969

Ent tool antenna

Apparatus, including a handle and a first conductive tube that is attached to and extends from the handle. The tube is biocompatible, and a tube distal end is configured to be inserted into an orifice of a human being for a medical procedure. ... Biosense Webster Inc

03/15/18 / #20180070845

Catheter with high density electrode spine array

A catheter adapted or high density mapping and/or ablation of tissue surface has a distal electrode matrix having a plurality of spines arranged in parallel configuration on which a multitude of electrodes are carried in a grid formation for providing uniformity and predictability in electrode placement on the tissue surface. The matrix can be dragged against the tissue surface upon deflection (and/or release of the deflection) of the catheter. ... Biosense Webster Inc

03/08/18 / #20180064489

System and method for selectively energizing catheter electrodes

The present invention is directed to a system, a method and a catheter that provide improved ablation capabilities and improved energy efficiency by selectively energizing catheter electrodes on the basis of impedance measurements. In particular, the invention is directed to the selective energization of catheter radial electrodes that together with a tip electrode form a generally continuous tissue contact surface, wherein the selection is made on the basis of impedance measurement as an indication of the amount of tissue contact of each radial electrode.. ... Biosense Webster Inc

03/01/18 / #20180056038

Catheter with bipole electrode spacer and related methods

An electrophysiology catheter constructed with assembly and wiring of ring electrodes using spacer rings of electrically-nonconductive material, whose length is predetermined/premeasured, includes a distal section with at least one spine having two electrodes, and a spacer member therebetween, wherein the spacer member configured to provide a separation gap between the two electrodes. The separation gap may span in an axial direction and/or in a circumferential direction. ... Biosense Webster Inc

03/01/18 / #20180055562

Catheter with split electrode sleeve and related methods

An electrophysiology catheter having an electrode sleeve mounted on a distal section, the electrode sleeve comprising an electrically-nonconductive band and a plurality of discrete electrodes, the band extending circumferentially around the distal section, each discrete electrode occupying a different radial position around the band. The catheter includes a plurality of lead wires extending through the elongated body and the deflection section, and into the distal section, each lead wire passing through a respective aperture formed in the sidewall of the tubing of the distal section, each wire being connected at its distal end to a respective discrete electrode.. ... Biosense Webster Inc

02/22/18 / #20180049803

Basket catheter with deflectable spine

A catheter adapted for mapping and/or ablation in the atria has a basket-shaped electrode array with two or more location sensors with a deflectable expander. The catheter has comprises a catheter body, a basket electrode assembly at a distal end of the catheter body, and a control handle at a proximal end of the catheter body. ... Biosense Webster Inc

02/15/18 / #20180042683

Registering probe and sheath images on a display

A method, including calculating locations of first sensors attached to a probe that has been inserted into a human patient, and calculating positions of second sensors attached to a sheath via which the probe is inserted. The method also includes calculating respective shapes of the probe and the sheath, to achieve a best fit to the calculated probe sensor locations and sheath sensor positions, while restricting the probe to pass through the sheath. ... Biosense Webster Inc

02/15/18 / #20180042641

Gear mechanism to drive oscillating shaft

A cutting operation is performed with an apparatus having an elongated sleeve with a port in its distal section. The sleeve is connected to a vacuum source and a rotating shaft is disposed in the lumen of the sleeve. ... Biosense Webster Inc

02/15/18 / #20180042640

Turbine-driven rotary sinuplasty cutter

A surgical apparatus includes a rotatable shaft and a turbine assembly. The rotatable shaft includes a cutter located thereon. ... Biosense Webster Inc

02/15/18 / #20180042510

Identifying ecg signals having the same morphology

A method, including selecting an initial set of electrocardiograph (ecg) signals taken over a single heartbeat of a human subject, the set having respective morphologies to be used as a template for an arrhythmia of the subject, and receiving a subsequent set of ecg signals taken over a subsequent heartbeat of the human subject. The method also includes performing a cross-correlation between the initial set and the subsequent set, so as to generate a correlation coefficient that is a measure of a goodness of fit between geometries of the initial set and the subsequent set, and, when the correlation coefficient exceeds a threshold coefficient, accepting the subsequent heartbeat as having been caused by the arrhythmia.. ... Biosense Webster Inc

02/15/18 / #20180042505

Classifying ecg signals

A method, including receiving a bipolar signal from a pair of electrodes in proximity to a myocardium of a human subject, and receiving a unipolar signal from a selected one of the pair of electrodes. The method further includes delineating a window of interest (woi) for the unipolar and bipolar signals, within the woi computing local unipolar minimum derivatives of the unipolar signal, and times of occurrence of the local unipolar minimum derivatives, and within the woi computing bipolar derivatives of the bipolar signal at the times of occurrence. ... Biosense Webster Inc

02/15/18 / #20180042504

Annotation of a wavefront

A method, including receiving a bipolar signal from a pair of electrodes in proximity to a myocardium of a human subject and receiving a unipolar signal from a selected one of the pair of electrodes. The method further includes computing a local unipolar minimum derivative of the unipolar signal, and a time of occurrence of the unipolar minimum derivative. ... Biosense Webster Inc

02/08/18 / #20180036079

Catheter with distal section having side-by-side loops

The catheter allows mapping and/or ablation of the area around two or more pv ostia at the same time, with a single placement of a distal section of the catheter having a 2d configuration resembling an infinity or lazy 8 symbol. The catheter has an elongated catheter body, a distal section having at least a flexible elongated member with shape memory, the member being configured to assume a 2d configuration resembling an infinity symbol, and at least one electrode mounted on the member. ... Biosense Webster Inc

02/08/18 / #20180036078

Catheter with soft distal tip for mapping and ablating tubular region

A catheter includes an elongated body having a longitudinal axis, a distal assembly distal the elongated body, the distal assembly having a tapered helical form comprising a larger, electrode-carrying proximal loop and a smaller, softer distal loop, and a shape-memory support member extending through at least the proximal loop. For example, the helical loop subtends at least about 720 radial degrees, with the proximal loop subtending about 360 radial degrees, and the distal loop subtending about 360 radial degrees. ... Biosense Webster Inc

02/08/18 / #20180036009

Balloon positioning in a sinuplasty procedure

A method includes inserting into a patient organ a catheter including a position sensor, a device and a handle. The position sensor is attached to a distal end of the catheter. ... Biosense Webster Inc

02/01/18 / #20180028084

Basket catheter with improved spine flexibility

A catheter with basket-shaped electrode assembly with spines configured for hyper-flexing in a predetermined, predictable manner when a compressive force acts on the assembly from either its distal end or its proximal end. At least one spine has at least one region of greater (or hyper) flexibility that allows the electrode assembly to deform, for example, compress, for absorbing and dampening excessive force that may otherwise cause damage or injury to tissue wall in contact with the assembly, without compromising the structure and stiffness of the remaining regions of the spine, including its distal and proximal regions. ... Biosense Webster Inc

01/18/18 / #20180014878

Diaphragm pumps for medical applications

Apparatus and methods described include a pump, which includes a piston, a diaphragm coupled to the piston and defining a wall of a fluid chamber, and a snail cam. The snail cam is configured to, by rotating, alternatingly (i) pump fluid from the fluid chamber, and (ii) draw fluid into the fluid chamber, by driving the piston to move the diaphragm. ... Biosense Webster Inc

01/11/18 / #20180010928

Magnetic-field generating circuit for a tracking system

Described embodiments include apparatus that includes a signal generator and an electric circuit. The signal generator is configured to supply a signal having both a first dominant frequency and a second dominant frequency. ... Biosense Webster Inc

01/11/18 / #20180008332

Catheter with micro-peltier cooling components

A catheter has a cooling distal section for freezing tissue to sub-zero temperatures with one or more miniature reverse thermoelectric or peltier elements, also referred to herein as micro-peltier cooling (mpc) units or electrodes. The mpc units may be on outer surface of an inflatable or balloon member or a tip electrode shell wall that has a fluid-containing interior cavity acting as a heat sink. ... Biosense Webster Inc

01/11/18 / #20180008229

Ascertaining tissue thickness

Embodiments described herein include apparatus that includes an electrical interface and a processor. The processor is configured to receive, via the electrical interface, a first signal that indicates a time-varying force that was applied to a portion of tissue, and one or more second signals that are derived from ultrasound reflections received from the portion of tissue. ... Biosense Webster Inc

01/11/18 / #20180008203

Automatic creation of multiple electroanatomic maps

Cardiac electrograms are recorded in a plurality of channels. Beats are classified automatically into respective classifications according to a resemblance of the morphologic characteristics of the beats to members of a set of templates. ... Biosense Webster Inc

12/28/17 / #20170371369

Catheter-based system having dongle with shape memory

A dongle couples an electrophysiologic catheter and a navigational system, including a patient interface unit (piu). The dongle permits hardware normally carried on catheter control handle to be relocated onto the dongle to render catheter “greener” and less costly to manufacture use. ... Biosense Webster Inc

12/28/17 / #20170367758

Irrigated catheter with fluid evacuation

A catheter for use with a suction source for removing excess fluid from a tissue treatment site has a catheter body, a distal section and a fluid evacuation path, where the distal section includes a multi-lumened member and at least one evacuation port, and the fluid evacuation path extends through a lumen in the multi-lumened member to provide suction communication between the suction source and the at least one evacuation port. The fluid evacuation path may also be configured for two-way flow, including distally and proximally along the catheter.. ... Biosense Webster Inc

12/14/17 / #20170354364

Multi-function conducting elements for a catheter

Described embodiments include an apparatus that includes an expandable structure, configured for insertion into a body of a subject, and a plurality of conducting elements coupled to the expandable structure. Each of the conducting elements comprises a respective coil and has an insulated portion that is electrically insulated from tissue of the subject, and an uninsulated portion configured to exchange signals with the tissue, while in contact with the tissue. ... Biosense Webster Inc

12/14/17 / #20170354339

Identification and visualization of cardiac activation sequence in multi-channel recordings

Intracardiac electrograms are recorded using a multi-electrode catheter and respective annotations established. Within a time window a pattern comprising a monotonically increasing local activation time sequence from a set of electrograms from neighboring electrodes is detected. ... Biosense Webster Inc

12/14/17 / #20170354338

Dual-function sensors for a basket catheter

Described embodiments include a catheter, which includes a plurality of splines at a distal end of the catheter, and a plurality of helical conducting elements disposed on the splines. Other embodiments are also described.. ... Biosense Webster Inc

12/07/17 / #20170348046

Ablation catheter with dedicated fluid paths and needle centering insert

An irrigated needle electrode ablation catheter has a distal tip section with a tip electrode, a needle electrode assembly longitudinal movable relative to the catheter, and a needle centering insert in a channel in the tip electrode. The assembly has a proximal tubing and a distal needle electrode, and the insert supports the needle electrode in the channel at a predetermined separation distance from the tip electrode while enabling irrigation to flow circumferentially around the needle electrode through the channel and exit at the distal end of the tip electrode. ... Biosense Webster Inc

12/07/17 / #20170348040

System for controlling tissue ablation using temperature sensors

Body tissue ablation is carried out by inserting a probe into a body of a living subject, urging the probe into contact with a tissue in the body, generating energy at a power output level, and transmitting the generated energy into the tissue via the probe. While transmitting the generated energy the ablation is further carried out by determining a measured temperature of the tissue and a measured power level of the transmitted energy, and controlling the power output level responsively to a function of the measured temperature and the measured power level. ... Biosense Webster Inc

12/07/17 / #20170347959

Spine construction for basket catheter

A spine of an electrode assembly is constructed by simultaneously deploying a plurality of individual bobbins of lead wire radially around the longitudinal axis of a polymeric tube. A free end of lead wire from each bobbin is electrically connected to a respective electrode and the electrodes are sequentially installed from a distal first location on the polymeric tube to a proximal location. ... Biosense Webster Inc

12/07/17 / #20170347896

Balloon catheter and related impedance-based methods for detecting occlusion

A system for assessing occlusion of a region to blood flow includes a catheter with an inflatable member, a first electrode configured for placement upstream of the inflatable member and the second electrodes configured for placement downstream of the inflatable member, the inflatable member configured for inflation to occlude the blood flow through the region. The system further includes a current/voltage source, a resistor and a voltmeter, wherein these components along with the first and second electrodes are configured to form an impedance measuring circuit configured to detect a change in impedance for indicating occlusion of the region to the blood flow.. ... Biosense Webster Inc

11/30/17 / #20170340235

Computer-aided localization of site of origin of cardiac activation with discriminator leads

A method for quantifying, during pacemapping, a comparison of a bspm of interest to a pace site bspm. The method may include receiving at a computing device a plurality of ecg signals from an acquisition system. ... Biosense Webster Inc

11/30/17 / #20170340227

Operator-controlled map point density

A method includes accepting from a medical imaging system a plurality of map points, each map point including a respective coordinate on a surface of a body organ measured by bringing a medical probe into proximity with the surface. An operator input, which specifies a spatial density at which the map points are to be displayed, is accepted. ... Biosense Webster Inc

11/30/17 / #20170340207

Using location and force measurements to estimate tissue thickness

A method, including pressing a distal end of a medical probe against a wall of a body cavity, and receiving from the probe first measurements of a force exerted by the distal end on the wall. The method also includes receiving from the probe second measurements indicating a displacement of the wall in response to the force. ... Biosense Webster Inc

11/23/17 / #20170333013

System and method for catheter connections

A console for performing a medical procedure has connection ports for electrically coupling equipment. Each connection port may have an associated indicator that signals whether a piece of equipment should be connected to the respective connection port. ... Biosense Webster Inc

11/23/17 / #20170332970

Multi-electrode catheter spine and method of making the same

A flexible frame comprising an electrically conductive hollow cylindrical metallic tube having a plurality of cuts along the longitudinal axis to form a plurality of conductive wires. The wires are equally spaced apart circumferentially along the longitudinal axis of the tube by a gap to electrically isolate the wires. ... Biosense Webster Inc

11/16/17 / #20170325893

Real-time estimation of tissue perforation risk during minimally invasive medical procedure

A method for performing a medical procedure, includes coupling a tip of a probe to tissue in an organ of a patient in order to apply the medical procedure using the probe. A force exerted by the tip on the tissue and a displacement of the tip created by the force are measured. ... Biosense Webster Inc

11/16/17 / #20170325884

Prevention of kinks in catheter irrigation tubes

A medical device includes an insertion tube, having a distal end for insertion into a body of a subject and an opening at the distal end. A lumen, which includes a flexible tube which passes longitudinally through the insertion tube so as to communicate with the opening at the distal end of the insertion tube, is secured under tension inside the insertion tube.. ... Biosense Webster Inc

11/16/17 / #20170325883

Catheter with composite construction

A catheter has a composite and segmented construction in a distal section that includes deflectable members and support member arranged in alternating sequence, with each support member carrying a ring electrode and the deflectable members being flexible to allow deflection of the distal section as a whole. Carried on an outer surface of the support member is a coil location sensor. ... Biosense Webster Inc

11/16/17 / #20170325882

Catheter with composite construction

A catheter has a composite and segmented construction in a distal section that includes deflectable members and support member arranged in alternating sequence, with each support member carrying a ring electrode and the deflectable members being flexible to allow deflection of the distal section as a whole. Carried on an outer surface of the support member is a coil location sensor. ... Biosense Webster Inc

11/16/17 / #20170325841

Insertion tube with deflectable tip

Apparatus described herein includes a tube, shaped to define a tube lumen and including a distal portion that has a plurality of articulated sections. The apparatus further includes a ribbon that passes longitudinally through the tube lumen and is connected to a distalmost one of the articulated sections, and a control handle disposed at a proximal end of the tube, the control handle being configured to flex the distal portion of the tube by pulling the ribbon. ... Biosense Webster Inc

11/09/17 / #20170319144

Catheter with shunting electrode

A catheter with an electrode assembly has a functional electrode located at a first position on the electrode assembly and a shunting electrode located proximal to the first position. Irrigation fluid carried by the catheter may be electrically coupled with a patient's blood through the shunting electrode. ... Biosense Webster Inc

11/09/17 / #20170319140

Basket-shaped catheter with improved distal hub

This disclosure is directed to a catheter having a basket-shaped electrode assembly with a high electrode density. The basket-shaped electrode assembly may have a plurality of spines, such as up to twelve, each with a plurality of electrodes, such as up to sixteen. ... Biosense Webster Inc

11/09/17 / #20170319139

Varying diameter catheter distal end design for decreased distal hub size

This disclosure is directed to a catheter having a basket-shaped electrode assembly with a high electrode density. The basket-shaped electrode assembly may have a plurality of spines, such as up to twelve, each with a plurality of electrodes, such as up to sixteen. ... Biosense Webster Inc

10/26/17 / #20170303896

Inflatable balloons for a foldable apparatus

Described embodiments include an apparatus that includes a plurality of flaps configured to fold over each other in a folded configuration. Each one of the flaps includes one or more ultrasound transducer elements. ... Biosense Webster Inc

10/12/17 / #20170290616

Uncalibrated thermocouple system

Apparatus, including a multiplexer, having a first output and multiple first inputs receiving analog input signals and an analog feedback signal and cycling through and selecting the signals for transfer in sequential signal groupings to the first output. The apparatus also includes an amplification circuit, having a second output and a second input connected to the multiplexer first output, that amplifies signals corresponding to the analog input signals with a selected gain so as to generate respective amplified analog signals at the second output. ... Biosense Webster Inc

10/05/17 / #20170288785

Linear isolation amplifier with output dc voltage cancellation

An electronic circuit includes an isolation amplifier, having a first input terminal receiving an ac-signal and including a linear opto-isolator. The opto-isolator has a first output terminal that provides a unipolar signal having an ac-component proportional to the input signal. ... Biosense Webster Inc

10/05/17 / #20170281268

Basket catheter structural elements

This disclosure is directed to a catheter having a basket-shaped electrode assembly at the distal end of the catheter body formed from a plurality of spines with electrodes. The basket-shaped electrode assembly structural elements at the proximal and distal ends. ... Biosense Webster Inc

10/05/17 / #20170281090

Control handle with rotational cam mechanism for contraction/deflection of medical device

A medical device has a distal member with a configuration that can be changed by means of a control handle with a control assembly employing a rotational cam, a shaft, and a pulley, where the rotational cam is rotationally mounted on a portion of the control handle for rotation by a user. The rotational cam operates on the shaft to move it proximally or distally depending on the direction of rotation which in turn rotates the pulley to draw or release a puller wire to change the configuration of the distal member of the medical device. ... Biosense Webster Inc

10/05/17 / #20170281031

Mapping of atrial fibrillation

Electroanatomic mapping is carried out by inserting a multi-electrode probe into a heart of a living subject, recording electrograms from the electrodes concurrently at respective locations in the heart, delimiting respective activation time intervals in the electrograms, generating a map of electrical propagation waves from the activation time intervals, maximizing coherence of the waves by adjusting local activation times within the activation time intervals of the electrograms, and reporting the adjusted local activation times.. . ... Biosense Webster Inc

09/28/17 / #20170273738

Dispersed irrigation configuration for catheter tip design

This disclosure is directed to a diagnostic catheter having an improved irrigation system for reducing thrombus formation. The catheter may have an irrigated electrode assembly with a plurality of spines, each with a plurality of irrigation ports to flush the device and reduce the risk of thrombus formation.. ... Biosense Webster Inc

09/21/17 / #20170265926

Identification and visualization of gaps between cardiac ablation sites

A method includes receiving locations of multiple ablation sites formed on a surface of a heart. Distances are measured among at least some of the ablation sites based on the locations. ... Biosense Webster Inc

09/21/17 / #20170265812

Asymmetric basket catheter

This disclosure is directed to a catheter having an asymmetric basket-shaped electrode assembly at the distal end of the catheter body formed from a plurality of spines with electrodes. The plurality of spines are radially distributed across a first circumferential portion. ... Biosense Webster Inc

09/14/17 / #20170258530

Magnetic resonance thermometry during ablation

Thermography of an ablation site is carried out by navigating a probe into contact with target tissue in the heart, obtaining a first position of a position sensor in the probe and acquiring a first magnetic resonance thermometry image of the target tissue. The method is further carried out during ablation by iteratively reading the position sensor to obtain second positions, and acquiring a new magnetic resonance thermometry image of the target tissue when the distance between the first position and one of the second positions is less than a predetermined distance. ... Biosense Webster Inc

08/31/17 / #20170245980

Pressure changer for a breast implant

Apparatus, including an enclosure, a fluid-tight bag located within the enclosure, and a fluid-tight valve connected to the fluid-tight bag. The apparatus also has a tube, having a first end connected to the fluid-tight bag via the fluid-tight valve, and a second end connected to a balloon within a breast implant fitted to an implantee. ... Biosense Webster Inc

08/31/17 / #20170245927

Catheter with perforated tip

A medical device includes an insertion tube, having a distal end for insertion into a body of a subject. A distal tip is fixed to the distal end of the insertion tube and is coupled to apply energy to tissue inside the body. ... Biosense Webster Inc

08/17/17 / #20170236311

Interpolation of dynamic three-dimensional maps

A method, including acquiring initial signals from selected positions in a heart, computing respective initial local values of a signal propagation metric at the selected positions, and interpolating the initial local values between the selected positions to compute initial interpolated values of the signal propagation metric at intermediate positions, between the selected positions. The method further includes acquiring subsequent signals from the positions, computing respective subsequent local values of the signal propagation metric at the selected positions, and spatially interpolating the subsequent local values of the signal propagation metric between the selected positions to compute subsequent interpolated values of the signal propagation metric at the intermediate positions. ... Biosense Webster Inc

08/17/17 / #20170232234

Deflectable catheter with hinge

A deflectable device, such as a catheter, is provided that includes a hinge that enhances the ability of the device to deflect or bend within a predetermined plane. The catheter comprises an elongated tubular catheter body having proximal and distal ends and at least one lumen extending therethrough. ... Biosense Webster Inc

08/17/17 / #20170231517

System and method for visualizing electrophysiology data

A method and system for visualization of electrophysiology information sensed by electrodes on a catheter, includes recording times of electrode signal acquisition, designating a reference electrode signal acquisition, assigning a relative time to each recorded time of electrode signal acquisition relative to the reference electrode signal acquisition, identifying the electrodes with signal acquisition, correlating assigned relative times to identified electrodes to generate a sequence of electrode signal acquisitions, and generating a visual representation of the sequence of electrode signal acquisitions generating a visual representation with a graphical image of the electrodes, wherein individual electrodes are visually marked to represent the sequence of electrode signal acquisitions.. . ... Biosense Webster Inc

08/10/17 / #20170224237

Catheter spine assembly with closely-spaced bipole microelectrodes

An electrophysiologic catheter with a distal electrode assembly carrying very closely-spaced bipole microelectrodes on a plurality of divergent spines that can flexibly spread over tissue surface area minimized detection of undesirable noise, including far-field signals. Each spine has a flexible microelectrode panel having a substrate, at least one pair of microelectrodes, a trace for each microelectrode, and a soldering pad. ... Biosense Webster Inc

08/03/17 / #20170221254

High definition coloring of heart chambers

A 3-dimensional image is displayed in high resolution colors by generating a 3-dimensional model as a triangular mesh, converting the mesh into a grid of voxels, and assigning attribute values to a portion of the voxels. Laplacian interpolation based on the portion of the voxels is applied for iteratively calculating interpolated attribute values of other voxels. ... Biosense Webster Inc

08/03/17 / #20170215956

Catheter with flow balancing valve

A catheter has at least two irrigated ablation electrodes and a coaxial irrigation tubing to transport fluid to the electrodes by separate and dedicated flow paths. A valve is used to control flow of fluid into the coaxial irrigation tubing by means of a plunger assembly that allows fluid to flow through one lumen of the coaxial irrigation tubing while regulating the flow into the other lumen of the coaxial irrigation tubing in response to the fluid flow rate and pressure applied to the plunger assembly.. ... Biosense Webster Inc

08/03/17 / #20170215954

Catheter for treatment of atrial flutter having single action dual deflection mechanism

A catheter and method for the treatment of a patient having atrial flutter or other arrhythmia comprises an elongated catheter body having an outer wall, proximal and distal ends, and at least one lumen extending therethrough. Further it has a distal tip section comprising a flexible tubing having a proximal end and a distal end and a plurality of lumens extending therethrough. ... Biosense Webster Inc

08/03/17 / #20170215817

Detection and display of irregular periodic wave forms

A method for display, consisting of acquiring an electrical signal from a heart of a subject over multiple heart cycles. The electrical signal is partitioned into a succession of synchronized segments having respective start times at a selected annotation point in the heart cycles. ... Biosense Webster Inc








ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009



###

This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. Freshpatents.com is not affiliated or associated with Biosense Webster Inc in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Biosense Webster Inc with additional patents listed. Browse our Agent directory for other possible listings. Page by FreshPatents.com

###