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Cambridge Medical Robotics Limited patents (2016 archive)


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "C" | Cambridge Medical Robotics Limited-related inventors


Surgical arm

A surgical robot comprising an articulated arm, the arm having a terminal portion comprising: a distal segment having an attachment for a surgical instrument; an intermediate segment; and a basal segment whereby the terminal portion is attached to the remainder of the arm; a first articulation between the distal segment and the intermediate segment, the first articulation permitting relative rotation of the distal segment and the intermediate segment about a first axis; and a second articulation between the intermediate segment and the basal segment, the second articulation permitting relative rotation of the intermediate segment and the basal segment about a second axis; wherein: the intermediate segment comprises a third articulation permitting relative rotation of the distal segment and the basal segment about third and fourth axes; and the first, second and third articulations are arranged such that in at least one configuration of the third articulation the first and second axes are parallel and the third and fourth axes are transverse to the first axis.. . ... Cambridge Medical Robotics Limited

Characterising robot environments

A method for characterising the environment of a robot, the robot having a flexible arm having a plurality of joints, a datum carried by the arm, a plurality of drivers arranged to drive the joints to move and a plurality of position sensors for sensing the position of each of the joints, the method comprising: contacting the datum carried by the arm with a first datum on a second robot in the environment of the first robot, wherein the second robot has a flexible arm having a plurality of joints, and a plurality of drivers arranged to drive those joints to move; calculating in dependence on the outputs of the position sensors a distance between a reference location defined in a frame of reference local to the robot and the first datum; and controlling the drivers to reconfigure the first arm in dependence on at least the calculated distance.. . ... Cambridge Medical Robotics Limited

Sensing motor current

A circuit configured to sense the driving current of a motor, the circuit comprising: a driver configured to generate a driving current for a motor; a first current sensor configured to sense the driving current thereby forming a first sensed current; a second current sensor configured to sense the driving current thereby forming a second sensed current, the second current sensor being more thermally stable than the first current sensor; a comparator configured to compare the first sensed current and the second sensed current below a threshold frequency to generate a thermal calibration output; and a calibrator configured to calibrate the first sensed current by the thermal calibration output to form a sensed driving current.. . ... Cambridge Medical Robotics Limited

Surgical instrument driving mechanism

A robotic surgical instrument comprising a shaft, an articulation attached to the distal end of the shaft, and a driving mechanism at the proximal end of the shaft. The articulation comprises a plurality of joints for articulating an end effector, the plurality of joints driveable by at least first and second pairs of driving elements. ... Cambridge Medical Robotics Limited

Torque sensing in a surgical robotic wrist

A surgical robotic component comprising an articulated terminal portion, the terminal portion comprising: a distal segment having an attachment connected thereto, an intermediate segment, and a basal segment whereby the terminal portion is attached to the remainder of the surgical robotic component. The terminal portion further comprises a first articulation between the distal segment and the intermediate segment, the first articulation permitting relative rotation of the distal segment and the intermediate segment about a first axis, and a second articulation between the intermediate segment and the basal segment, the second articulation permitting relative rotation of the intermediate segment and the basal segment about a second axis. ... Cambridge Medical Robotics Limited

Thread handling tool

A surgical instrument including an elongate shaft terminating in an end effector, the end effector including two pairs of opposable jaws, the pairs being spaced apart and independently operable to cause the jaws of that pair to grip or release an object located therebetween, wherein the jaws of each pair are movable to an open configuration in which the most distal point on each of those jaws is less distal than the mid-point of that pair of jaws when that pair of jaws is closed with its jaws in their most distally extended configuration.. . ... Cambridge Medical Robotics Limited

User interface for a robot

A robotic system including: a robot arm; a camera for capturing motion of the robot arm; an input mechanism for detecting user input; a display device; and a controller. The controller can operate in (i) a first mode configured to drive the display device to display a video stream captured by the camera in a first format and to drive the robot arm such that motion by the user in a first direction causes the robot arm to move a reference part in a second direction; and (ii) a second mode configured to drive the display device to display the video stream in a second format reflected with respect to the first format and to drive the robot arm such that motion by the user in the first direction causes the robot arm to move the reference part in a direction opposite to the second direction.. ... Cambridge Medical Robotics Limited








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