Invention Grant
- Patent Title: Pressure-sensitive conductive composite contact sensor and method for contact sensing
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Application No.: US15404844Application Date: 2017-01-12
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Publication No.: US10687891B2Publication Date: 2020-06-23
- Inventor: Kedar Ravindra Belhe , Saurav Paul
- Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.
- Applicant Address: US MN St. Paul
- Assignee: St. Jude Medical, Atrial Fibriliation Division, Inc.
- Current Assignee: St. Jude Medical, Atrial Fibriliation Division, Inc.
- Current Assignee Address: US MN St. Paul
- Agency: Wiley Rein LLP
- Main IPC: A61B5/00
- IPC: A61B5/00 ; A61B18/14 ; A61M25/00 ; G01L1/20 ; A61B90/00 ; A61B18/00

Abstract:
A catheter assembly for assessing contact between the catheter assembly and tissue is disclosed. The assembly includes a catheter shaft and a pressure sensitive conductive composite member whose electrical resistance varies with pressure applied to the catheter assembly. The assembly also includes at least one measurement terminal to permit the measurement of changes in the electrical characteristics of the pressure sensitive conductive composite member. The assembly may optionally include a measurement device to measure resistance, impedance and/or other electrical characteristics. The assembly may utilize a reference electrode secured to the patient's tissue, which permits the measurement device to measure changes between the reference electrode and the at least one measurement terminal. Optionally, the assembly may include a conductive outer layer. Also disclosed are sensor assemblies, contact sensor, methods of contact sensing, and methods of manufacturing relating to the use of pressure sensitive conductive composites.
Public/Granted literature
- US20170202615A1 Pressure-sensitive conductive composite contact sensor and method for contact sensing Public/Granted day:2017-07-20
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