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Biosense Webster Inc patents (2016 archive)


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 having two-piece connector for a split handle assembly

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

Catheter having closed loop array with in-plane linear electrode portion

A catheter adapted or high density mapping and/or ablation of tissue surface has a distal electrode array with offset spine loops, each spine loop having at least a pair of linear portions and a distal portion connecting the pair of linear portions, and one or more electrodes on each linear portion. The linear portions of the plurality of offset spine loops are arranged in-plane a single common plane, and the distal portions of the plurality of offset spine loops are arranged off-plane from the single common plane.. ... 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

Tracking sensor

Apparatus and methods are described, including a tracking sensor. The sensor includes a tube containing a ferrite powder, and a coil wound around the tube. ... Biosense Webster Inc

Catheter with flat beam deflection in tip

A catheter has a deflection beam with rectangular cross-section and a single continuous puller wire for predictable on-plane bi-directional deflection. The puller wire extends through spacers on opposite sides of the beam so the puller wire is maintained a predetermined separation distance from the beam surface. ... Biosense Webster Inc

Catheter with needles for ablating tissue layers in vessel

A catheter has a catheter body and a distal tip section with needles that are positioned radially to extend outside of the distal tip section to pierce and penetrate tissue layers of a vessel or tubular region. The needles are supported in a retracted position inside the distal tip section on an elongated support member. ... Biosense Webster Inc

Registration of coronary sinus catheter image

Cardiac catheterization is carried out by importing image data of a heart of a living subject into an image-processing computer system, representing the image data as a first model of the heart and the coronary sinus in a first coordinate space, and introducing a probe into the coronary sinus. Thereafter fluoroscopic image data of the probe are used to prepare a second model of the coronary sinus in a second coordinate space, and the first model is transformed into the second coordinate space by placing the coronary sinus of the second model in registration with the coronary sinus of the first model.. ... Biosense Webster Inc

Catheter with adjustable deflection

A catheter having a catheter shaft that has a more uniform construction throughout its length and is able to provide more than one deflection curvature. The catheter shaft includes a flexible outer tubular member, and a less flexible inner tubular member extending through the outer tubular member in a proximal section of the catheter shaft, wherein the inner tubular member is afforded longitudinal movement relative to the outer tubular member. ... Biosense Webster Inc

Woven foldable catheter

Apparatus, consisting of a catheter having a distal end and a predefined outer diameter. The apparatus also has a plurality of elastic filaments, each filament having at least one electrode fixed thereto and having two ends fixed within the catheter distal end to hold the filament as a loop. ... Biosense Webster Inc

Catheter with anchoring balloon assembly

A catheter has an electrode assembly adapted for use on an ostium and a stabilizing assembly movable between a stowed position within the catheter and a deployed position in the tubular region of the ostium. The stabilizing assembly has a balloon member that can be extended distally into the tubular region and inflated to wedge itself in the tubular region for anchoring the electrode assembly. ... Biosense Webster Inc

Catheter with coaxial thermocouple

An improved thermocouple includes a drawn coaxial thermocouple wire pair having a more precise “hot” junction at which a first and second metallic material electrically connect with each other for measuring temperature. Adapted for use with an electrophysiologic catheter, the improved thermocouple comprising an elongated body having a proximal end and a distal end. ... Biosense Webster Inc

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. An inflatable balloon is twisted about the spring and mechanically linked to the spring. ... Biosense Webster Inc

Rf ablation with acoustic feedback

Systems and methods are disclosed for performing an ablation procedure by obtaining a signal from an acoustic sensor used to detect occurrence of a steam pop and adjust the ablation in response to the steam pop detection.. . ... Biosense Webster Inc

Ventricular electrical activity indicator

Cardiac catheterization is carried out using a probe having sensing electrodes disposed on a distal portion thereof, placing the sensing electrodes in galvanic contact with respective locations in an atrium of the heart, thereafter acquiring electrograms from the sensing electrodes while concurrently detecting ventricular depolarization events, generating from the electrograms a time-varying electroanatomic map showing electrical propagation in the heart, and displaying the electroanatomic map in a series of visual images, the images including an icon that visually indicates the ventricular depolarization events.. . ... Biosense Webster Inc

10/20/16 / #20160302859

Apparatus and method for monitoring early formation of steam pop during ablation

A system for measuring real-time tissue reflection spectral characteristics during ablation includes a catheter for collecting light reflected from tissue undergoing ablation, a detection component for separating constituent wavelengths of the collected light, a quantification apparatus for generating measured light intensity data of the collected light, and a processor for analyzing the data in relation to time. A method for monitoring formation of steam pop during ablation includes delivering light to tissue, delivering ablative energy to the tissue, measuring the reflectance spectral intensity of the tissue, and observing whether the measured reflectance spectral instensity (mrsi) initially increases in a specified time period followed by a decrease at a specified rate. ... Biosense Webster Inc

10/20/16 / #20160302725

Single radio-transparent connector for multi-functional reference patch

A patch and sensor assembly has a biosensor housed in a reusable portion that connects to a mapping and localization system (mls) via biosensor wires. A disposable portion has an electrode layer through which signals are transmitted to the mls via acl wires. ... Biosense Webster Inc

09/29/16 / #20160278855

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

09/15/16 / #20160263348

Steering mechanism for bi-directional catheter

A bi-directional catheter with nearly double the throw in its catheter tip deflection defines a puller wire travel path having a u-turn a pulley which minimizes the offset angle between the puller wire and the longitudinal axis of the control handle while maximizing the travel distance of that puller wire for any given distance traveled by the pulley drawing the puller wire. In particular, the control handle of the catheter which includes a steering assembly having a lever arm carrying a pair of pulleys for drawing corresponding puller wires to deflect the tip section of the catheter. ... Biosense Webster Inc

09/15/16 / #20160262829

Catheter with bendable tip

A medical probe includes a flexible insertion tube, having a distal end for insertion into a body cavity of a patient, and a distal tip, which is disposed at the distal end of the insertion tube and is configured to be brought into contact with tissue in the body cavity. A coupling member couples the distal tip to the distal end of the insertion tube and includes a tubular piece of an elastic material having a helical cut therethrough along a portion of a length of the piece.. ... Biosense Webster Inc

09/15/16 / #20160262655

Respiratory effect reduction in catheter position sensing

A method, including positioning body-electrodes in galvanic contact with a body of a patient and locating a probe in the body of the patient. The method further includes tracking positions of the probe during respiration of the patient and determining indications related to impedances between the body-electrodes during the respiration. ... Biosense Webster Inc

09/01/16 / #20160255261

Otoscope with controlled illumination

Apparatus, including a camera which has an objective lens configured to focus light from an object, and an imaging array configured to receive the focused light and in response thereto, to output a signal representative of an image of the object. The apparatus further includes a multiplicity of illuminators arrayed around the objective lens and configured to illuminate the object, and a processor which is coupled to differentially adjust respective light intensities emitted by the illuminators responsively to the signal.. ... Biosense Webster Inc

09/01/16 / #20160249979

Sealed two-way magnetic manifold

An irrigated medical device, including an inlet tube configured to receive an irrigation fluid from a pressurized fluid source, at least first and second outlet tubes configured to deliver the irrigation fluid to respective outlets of the device, a manifold containing a chamber coupled between the inlet tube and at least the first and second outlet tubes, and a ball including a magnetic material contained inside the chamber. The irrigated medical device also includes a magnetic field generator disposed outside the chamber and configured to generate a variable magnetic field within the chamber so as to move the ball between at least a first position in which the first outlet tube is blocked, a second position in which the second outlet tube is blocked, and a third position, in which neither of the outlet tubes is blocked.. ... Biosense Webster Inc

08/25/16 / #20160248434

Narrowband analog noise cancellation

. . A method, including receiving an input analog signal containing noise at a specific noise frequency and digitizing the input analog signal to form a digitized signal. The method also includes recovering a first amplitude and a first phase of the noise from the digitized signal, and generating an analog correction signal at the specific noise frequency. ... Biosense Webster Inc

08/18/16 / #20160235383

Compensation for heart movement using coronary sinus catheter images

Cardiac catheterization is carried out by introducing a catheter into the coronary sinus, acquiring a first set of 2-dimensional images of the catheter, thereafter acquiring a second set of 2-dimensional images of the catheter, and creating respective 2-dimensional models of the catheter in synchronized frames of the first set and the second set. The 2-dimensional models include respective tracked 2-dimensional paths of the catheter. ... Biosense Webster Inc

08/18/16 / #20160235339

Training of impedance based location system using registered catheter images

A method, including inserting a catheter having at least one electrode into a chamber of a body organ of a patient and recording at a sequence of times respective sets of currents between the at least one electrode and a plurality of patches positioned on skin of the patient. The method further includes, while recording the sets of currents, acquiring x-ray images of the at least one electrode, and determining locations of the catheter from the images. ... Biosense Webster Inc

08/11/16 / #20160228182

Segmented balloon catheter

A catheter has an inflatable assembly at its distal portion, including a containment chamber, an axial core and a plurality of longitudinally oriented partitions extending from the axial core to the wall of the chamber to divide the containment chamber into at least four inflatable sectors. Hydraulic valves are connected to respective sectors to enable selective inflation of the sectors by a fluid when the valves are connected to a source of the fluid, and at least one surface electrode is mounted on each of the sectors. ... Biosense Webster Inc

08/11/16 / #20160228062

Basket catheter with microelectrode array distal tip

A catheter adapted for greater mapping resolution and location precision has a basket-shaped, high density electrode assembly for large-area mapping, and an integrated distal tip providing an array of ultra-high density microelectrodes for acute focal mapping. The basket-shaped electrode assembly 18 has a plurality of electrode-carrying spines and the distal tip has a nonmetallic, electrically insulating substrate body with indentations in which microelectrodes are positioned in a manner that the outer surface is generally flush with the outer surface of the substrate body to present a generally smooth, atraumatic distal tip profile.. ... Biosense Webster Inc

08/11/16 / #20160228023

Basket catheter with far-field electrode

Cardiac catheterization is performed with a catheter having a basket-shaped assembly at its distal end. A plurality of spline electrodes are disposed on the splines of the assembly. ... Biosense Webster Inc

08/04/16 / #20160220303

Pressure-driven irrigation pump

A medical pump includes first and second compartments, which are configured to accept respective first and second containers of fluid to be pumped to a medical device, and a paddle, which is fitted between the first and second compartments. The pump additionally includes a control module, which is configured to drive the paddle to alternate between first time periods in which the paddle applies pressure to the first container so as to pump the fluid therefrom, and second time periods in which the paddle applies the pressure to the second container so as to pump the fluid therefrom.. ... Biosense Webster Inc

07/14/16 / #20160199129

Catheter with liquid-cooled control handle

An electrophysiologic catheter with an improved control handle is provided. The catheter includes a heat transfer assembly to better dissipate heat in the control handle. ... Biosense Webster Inc

07/07/16 / #20160193446

Catheter entanglement indication

A method includes, while an operator of an elongated probe, having proximal and distal ends, manipulates the proximal end so as to move the distal end within a body of a patient, automatically measuring a cumulative angle of rotation that is applied by the operator to the proximal end. An indication of the cumulative angle of rotation is presented to the operator.. ... Biosense Webster Inc

06/16/16 / #20160166808

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

06/16/16 / #20160166165

Detection and display of irregular periodic waveforms

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

06/02/16 / #20160155274

Differential mapping of a body organ

A method for mapping a body organ, including receiving a three-dimensional (3d) map of the body organ having a multiplicity of map elements, each map element having a graphic attribute indicative of a local property of the body organ. The method further includes delineating a selected region of the map, so that the map is divided into the selected region and a non-selected region. ... Biosense Webster Inc

05/26/16 / #20160144153

Catheter with improved torque transmission

A catheter has a deflection beam and a single continuous puller wire to effectuate bi-directional deflection. A joint between a catheter body and a deflectable distal section effectively transmits torque from a control handle. ... Biosense Webster Inc

05/26/16 / #20160143696

Estimation and mapping of ablation volume

Tissue ablation systems and methods are provided, wherein a cardiac catheter incorporates a pressure detector for sensing a mechanical force against the distal tip when engaging an ablation site. Responsively to the pressure detector, a controller computes an ablation volume according to relationships between the contact pressure against the site, the power output of an ablator, and the energy application time. ... Biosense Webster Inc

05/26/16 / #20160143690

Irrigated ablation catheter with multiple sensors

Systems and methods are disclosed for providing and using an irrigated ablation catheter. The catheter may include a distal shell electrode having irrigation apertures. ... Biosense Webster Inc

05/26/16 / #20160143689

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

05/26/16 / #20160143588

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

05/12/16 / #20160129224

Control handle with device advancing mechanism

A catheter having an internal advancing mechanism that can advance stiffening wires or other devices, has a catheter with a catheter body, a tip section distal the catheter body, a device extending through at least the catheter body, and a control handle proximal the catheter body, where the control handle has an advancing mechanism with a threaded member, an adjustment member, and a guided member to which the device is connected, and the advancing mechanism is configured to advance and retract the device along the catheter body as controlled by a user. Each of the threaded member and the adjustment member has a generally cylindrical configuration. ... Biosense Webster Inc

05/12/16 / #20160128771

Catheter with adjustable arcuate distal section

A catheter includes an elongated body, a distal assembly with a shape-memory member defining a generally circular form, and a control handle adapted to actuate a deflection puller wire for deflecting a portion of the elongated body, and a contraction wire for contracting the generally circular form. The generally circular form which carries at least one ring electrode has an off-edge configuration relative to the elongated body such that a longitudinal axis of the elongated body does not intersect the circumference of the circular form and the generally circular form spirals about the longitudinal axis of the elongated body. ... Biosense Webster Inc

05/12/16 / #20160128765

Irrigated ablation catheter with sensor array

Systems and methods are disclosed for providing and using an irrigated ablation catheter. The catheter may include a distal shell electrode having irrigation apertures. ... Biosense Webster Inc

05/05/16 / #20160120427

Real-time coloring of electrophysiological map

Catheterization of the heart is carried out with a probe having a plurality of electrodes and sensors by displaying an electroanatomical map of the heart on a monitor. During a time interval that does not exceed a duration of a cardiac cycle of the heart the following steps are performed: reading data from at least one of the electrodes and sensors, and invoking a processor to perform an algorithm on the data. ... Biosense Webster Inc

05/05/16 / #20160120426

Registration maps using intra-cardiac signals

Cardiac catheterization is facilitated by generating first and second electroanatomic maps of a heart of a subject and designating common spatial locations that correspond to first electrical events on the first electroanatomic map and second electrical events on the second electroanatomic map. The common spatial locations of the first electroanatomic map and the second electroanatomic map are aligned to establish an aligned map, and using the location data on the aligned map to guide a probe to a point of interest.. ... Biosense Webster Inc

04/28/16 / #20160113723

Enlargement of tracking volume by movement of imaging bed

A medical system, includes an imaging apparatus, which includes an array of detectors, which define an imaging volume and form images of a region within a body of a patient that is positioned in the imaging volume. A movable bed transports the body of the patient through the imaging volume. ... Biosense Webster Inc

04/28/16 / #20160113582

Basket catheter with microelectrode array distal tip

A catheter adapted for greater mapping resolution and location precision has a basket-shaped, high density electrode assembly for large-area mapping, and an integrated distal tip providing an array of ultra-high density microelectrodes for acute focal mapping. The basket-shaped electrode assembly 18 has a plurality of electrode-carrying spines and the distal tip has a nonmetallic, electrically insulating substrate body with indentations in which microelectrodes are positioned in a manner that the outer surface is generally flush with the outer surface of the substrate body to present a generally smooth, atraumatic distal tip profile.. ... Biosense Webster Inc

03/24/16 / #20160082224

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

03/24/16 / #20160081746

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

03/24/16 / #20160081584

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

03/24/16 / #20160081555

Multi-range optical sensing

The depth of an ablation lesion is assessed using a differential optical response of a catheter with multiple fiberoptic transmitters and receivers at the tip. To detect tissue optical response at shallow depths, closely-spaced transmitter/receiver pairs of optical fibers are used. ... Biosense Webster Inc

03/10/16 / #20160067457

Medical device control handle

A medical device control handle has with a distal component which is adjustable by an actuator assembly by means of a puller member or wire. The actuator assembly includes a user interface rotational dial, a detent tab washer and a spool, where the dial is rotationally coupled to the detent tab washer which transmits rotational movement of the dial to the spool. ... Biosense Webster Inc

02/25/16 / #20160051797

Unidirectional catheter control handle with tensioning control

A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The plug 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

02/18/16 / #20160048960

Marking of fluoroscope field-of-view

. . A method includes registering a first coordinate system of a fluoroscopic imaging system and a second coordinate system of a magnetic position tracking system. A three-dimensional (3d) map of an organ of a patient, which is produced by the magnetic position tracking system, is displayed. ... Biosense Webster Inc

02/18/16 / #20160045123

Line of block detection

Cardiac catheterization is performed by recording electrograms from a multi-electrode probe at respective locations in the heart, determining slopes and annotations in the electrograms within time windows, establishing relationships among the slopes and annotations of the electrograms, and determining lines of conduction block in the heart from the relationships.. . ... Biosense Webster Inc

02/11/16 / #20160038134

Trans-septal sheath with splitting dilating needle and method for its use

. . A device useful for accessing the left atrium is provided. The device comprises an elongated tubular body and a dilating tip. ... Biosense Webster Inc

02/11/16 / #20160038047

Wavefront analysis based on ablation parameters

A method, including recording parameters indicative of a quality of ablation performed at one or more sites in a region of a human heart, and receiving a set of electrophysiological signals indicative of a wave of electrical activation flowing through the region. The method further includes identifying locations within the region at which the wave is blocked from flowing and estimating confidence levels with respect to a blockage of the wave at the locations in response to the signals and the parameters. ... Biosense Webster Inc

01/28/16 / #20160022358

Catheter with omni-directional optical lesion evaluation

A catheter is adapted to ablate tissue and provide lesion qualitative information on a real time basis, having an ablation tip section with a generally omni-directional light diffusion chamber with one openings to allow light energy in the chamber to radiate the tissue and return to the chamber. The chamber is irrigated at a positive pressure differential to continuously flush the opening with fluid. ... Biosense Webster Inc

01/21/16 / #20160018602

Electro-optical connector with hot electrical contact protection

A cable connector, including a housing having a base and a lip, which surrounds the base and defines an aperture configured to receive a mating plug. The cable connector also includes a plurality of electrical contacts enclosed by the housing and configured to convey electrical signals, the electrical contacts having respective first proximal and first distal ends, the first proximal ends being implanted in the base so that the first distal ends are recessed within the aperture at a first distance from the base. ... Biosense Webster Inc

01/14/16 / #20160008065

Machine learning in determining catheter electrode contact

Cardiac catheterization is carried out by memorizing a designation of a contact state between an electrode of the probe and the heart wall as one of an in-contact state and an out-of-contact state, and making a series of determinations of an impedance phase angle of an electrical current passing through the electrode and another electrode, identifying maximum and minimum phase angles in the series, and defining a binary classifier adaptively as midway between the extremes. A test value is compared to the classifier as adjusted by a hysteresis factor, and a change in the contact state is reported when the test value exceeds or falls below the adjusted classifier.. ... Biosense Webster Inc

01/14/16 / #20160008064

Catheter with cooling on nonablating element

A catheter tip electrode has a tissue contacting surface which electrically conducts rf energy to the tissue and is more thermally conductive than adjacent non-electrically conductive coating or cover which prevents rf conduction to the tissue contacting that surface. The tip electrode has a shell with a nonablating hollow proximal neck portion and a distal ablating portion defining a fluid chamber, and a plug-like support member which is configured with a fluid channel on its outer surface so a fluid passage is provided between the member and the neck portion for convective or direct cooling of the nonablating neck portion and nonconductive tubing covering it.. ... Biosense Webster Inc

01/14/16 / #20160007842

Guidewire navigation for sinuplasty

Apparatus, including a guidewire having a distal end, that is configured to be inserted into proximity with a nasal sinus of a patient, the guidewire having a lumen. The apparatus also includes an optic fiber, traversing the lumen, configured to illuminate the distal end, and a coil, wound around the optic fiber and located within the lumen at the distal end, configured to generate a signal in response to a magnetic field interacting with the coil. ... Biosense Webster Inc








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