Patents by Inventor Christopher James Roach
Christopher James Roach has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11674823Abstract: A device for sensing the relative rotary position of first and second parts about a rotation axis, the device comprising a follower constrained to move on a first track fast with the first part and on a second track fast with the second part, the first track being linear and the second track comprising a plurality of circular arcs and at least one transition section connecting one of the circular arcs to another, the tracks being arranged so as to convert relative rotation of the parts into linear motion of the follower, wherein the second track is generally spiral, each circular arc is of constant radius about the rotation axis and the first track is perpendicular to the rotation axis.Type: GrantFiled: April 22, 2022Date of Patent: June 13, 2023Assignee: CMR SURGICAL LIMITEDInventors: Keith Marshall, Christopher James Roach, Paul Christopher Roberts, Steven James Randle
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Publication number: 20220244079Abstract: A device for sensing the relative rotary position of first and second parts about a rotation axis, the device comprising a follower constrained to move on a first track fast with the first part and on a second track fast with the second part, the first track being linear and the second track comprising a plurality of circular arcs and at least one transition section connecting one of the circular arcs to another, the tracks being arranged so as to convert relative rotation of the parts into linear motion of the follower, wherein the second track is generally spiral, each circular arc is of constant radius about the rotation axis and the first track is perpendicular to the rotation axis.Type: ApplicationFiled: April 22, 2022Publication date: August 4, 2022Inventors: Keith Marshall, Christopher James Roach, Paul Christopher Roberts, Steven James Randle
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Patent number: 11333531Abstract: A device for sensing the relative rotary position of first and second parts about a rotation axis, the device comprising a follower constrained to move on a first track fast with the first part and on a second track fast with the second part, the first track being linear and the second track comprising a plurality of circular arcs and at least one transition section connecting one of the circular arcs to another, the tracks being arranged so as to convert relative rotation of the parts into linear motion of the follower, wherein the second track is generally spiral, each circular arc is of constant radius about the rotation axis and the first track is perpendicular to the rotation axis.Type: GrantFiled: April 3, 2020Date of Patent: May 17, 2022Assignee: CMR Surgical LimitedInventors: Keith Marshall, Christopher James Roach, Paul Christopher Roberts, Steven James Randle
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Patent number: 10881471Abstract: A cooling structure and a method of cooling a surgical robot arm. The surgical robot arm extends from a proximal end attached to a base to a distal end attachable to a surgical instrument via a series of links interspersed by articulations. The cooling structure comprises a loop for circumscribing the surgical robot arm. The loop comprises a hollow interior for feeding cooling fluid through the loop, and a series of orifices directed towards the surgical robot arm for feeding cooling fluid from the loop towards the surgical robot arm. The cooling structure further comprises a feeder conduit attached to the loop for feeding cooling fluid from a cooling fluid source to the loop.Type: GrantFiled: November 16, 2018Date of Patent: January 5, 2021Assignee: CMR SURGICAL LIMITEDInventors: Christopher James Roach, Nikki Priyam Su-Ling Phoolchund, Paul Christopher Roberts
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Publication number: 20200232825Abstract: A device for sensing the relative rotary position of first and second parts about a rotation axis, the device comprising a follower constrained to move on a first track fast with the first part and on a second track fast with the second part, the first track being linear and the second track comprising a plurality of circular arcs and at least one transition section connecting one of the circular arcs to another, the tracks being arranged so as to convert relative rotation of the parts into linear motion of the follower, wherein the second track is generally spiral, each circular arc is of constant radius about the rotation axis and the first track is perpendicular to the rotation axis.Type: ApplicationFiled: April 3, 2020Publication date: July 23, 2020Inventors: Keith Marshall, Christopher James Roach, Paul Christopher Roberts, Steven James Randle
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Patent number: 10627260Abstract: A device for sensing the relative rotary position of first and second parts about a rotation axis, the device comprising a follower constrained to move on a first track fast with the first part and on a second track fast with the second part, the first track being linear and the second track comprising a plurality of circular arcs and at least one transition section connecting one of the circular arcs to another, the tracks being arranged so as to convert relative rotation of the parts into linear motion of the follower, wherein the second track is generally spiral, each circular arc is of constant radius about the rotation axis and the first track is perpendicular to the rotation axis.Type: GrantFiled: July 22, 2016Date of Patent: April 21, 2020Assignee: CMR Surgical LimitedInventors: Keith Marshall, Christopher James Roach, Paul Christopher Roberts, Steven James Randle
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Publication number: 20190083182Abstract: A cooling structure and a method of cooling a surgical robot arm. The surgical robot arm extends from a proximal end attached to a base to a distal end attachable to a surgical instrument via a series of links interspersed by articulations. The cooling structure comprises a loop for circumscribing the surgical robot arm. The loop comprises a hollow interior for feeding cooling fluid through the loop, and a series of orifices directed towards the surgical robot arm for feeding cooling fluid from the loop towards the surgical robot arm. The cooling structure further comprises a feeder conduit attached to the loop for feeding cooling fluid from a cooling fluid source to the loop.Type: ApplicationFiled: November 16, 2018Publication date: March 21, 2019Applicant: CMR Surgical LimitedInventors: Christopher James ROACH, Nikki Priyam Su-Ling PHOOLCHUND, Paul Christopher ROBERTS
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Publication number: 20180209819Abstract: A device for sensing the relative rotary position of first and second parts about a rotation axis, the device comprising a follower constrained to move on a first track fast with the first part and on a second track fast with the second part, the first track being linear and the second track comprising a plurality of circular arcs and at least one transition section connecting one of the circular arcs to another, the tracks being arranged so as to convert relative rotation of the parts into linear motion of the follower, wherein the second track is generally spiral, each circular arc is of constant radius about the rotation axis and the first track is perpendicular to the rotation axis.Type: ApplicationFiled: July 22, 2016Publication date: July 26, 2018Inventors: Keith Marshall, Christopher James Roach, Paul Christopher Roberts, Steven James Randle