IP Library Granted Patent US 8,845,653
Granted Patent B2
US 8,845,653 · App. 13/123,921 · Granted Sep 30, 2014

Forceps

Inventors: Dale Steven Harper (Cardiff, GB); John Aiden Nally (Birmingham, GB); David John Townsend (Solihull, GB); Khaled Mostafa Kam Ismail (Market Drayton, GB)
Assignee: Pro Medical Innovations Limited
A61B17/44A61B2019/464A61B2017/00477A61B17/442A61B2017/445A61B2017/00876
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Quick Facts
Patent No.
US 8,845,653
App. No.
13/123,921
Granted
Sep 30, 2014
Kind
B2
Abstract

The invention provides a forceps system comprising a pair of forceps members and force measurement means operable to measure compressive and traction forces exerted by the forceps when in use, and to output measurement signals indicative of such forces. Also provided is a method of measuring the compressive and traction forces exerted by a forceps system when in use.

Claims (15)

1. A forceps system comprising:

a pair of forceps members; and

force measurement means operable to measure compressive and traction forces exerted by the forceps members when in use, and to output measurement signals indicative of such forces,

wherein a forceps member comprises a blade portion and a handle portion,

wherein the force measurement means comprises a deformable O-ring located between the blade portion and the handle portion, and

wherein a strain gauge is mounted on the deformable O-ring,

wherein at least one of the forceps members comprises a pressure sensor operable to measure compressive forces.

2. A forceps system according to claim 1 wherein the pressure sensor is located on a surface of the forceps member opposing the other forceps member.

3. A forceps system according to claim 1 , wherein the pressure sensor is selected from the group comprising microelectromechanical piezoresistive force sensors, quantum tunneling composite sensors and force sensing resistors.

4. A forceps system according to claim 1 , wherein the O-ring is located adjacent a point of pivotal engagement of the two forceps members.

5. A forceps system according to claim 1 , wherein an array of strain gauges is mounted on the deformable O-ring.

6. A forceps system according to claim 5 , wherein in the array of strain gauges is mounted on an external cylindrical surface of the deformable O-ring.

7. A forceps system according to claim 1 , wherein the forceps members are engaged with one another by magnetic forces at a point of pivotal engagement between the pair of forceps members.

8. A forceps system according to claim 1 , wherein at least a portion or the forceps members comprise a resilient material.

9. A forceps system according to claim 8 , wherein the resilient material is an elastomeric polymer material.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 6, 2011
From: HARPER, DALE STEVEN; NALLY, JOHN AIDEN; TOWNSEND, DAVID JOHN; ISMAIL, KHALED MOSTAFA KAM
To: PRO MEDICAL INNOVATIONS LIMITED
Reel/Frame 026391/0681 →
Priority Claims (2)
GB 0819128.0 · Oct 18, 2008 · national
GB 0908237.1 · May 13, 2009 · national
Continuity (1)
Related Publication 20110245865A1 · Oct 6, 2011