Jeffrey Allen Townsend

US Patent:

8628557, Jan 14, 2014

Filed:

Jul 11, 2011

Appl. No.:

13/180018

Inventors:

Chase Collings - Hayden ID, US
Grant T. Sims - Littleton CO, US
Jeffrey R. Townsend - Loveland CO, US

Assignee:

Covidien LP - Mansfield MA

International Classification:

A61B 17/00

US Classification:

606205, 606207

Abstract:

A forceps includes a pair of shafts each having a jaw member disposed at a distal end thereof. One (or both) of the shafts is moveable relative to the other about a pivot pin between a spaced-apart position and an approximated position to move the jaw members between an open position and a closed position. A knife assembly includes a knife blade mechanically keyed to the pivot pin and moveable between an initial position, wherein the knife blade is disposed within one of the jaw members, and an extended position, wherein the knife blade extends between the jaw members. An actuator arm(s) is mechanically keyed to the pivot pin and extends therefrom. The actuator arm(s) is moveable between an un-actuated position and an actuated position to rotate the pivot pin relative to the jaw members to move the knife blade between the initial position and the extended position.

US Patent:

20170071616, Mar 16, 2017

Filed:

Nov 28, 2016

Appl. No.:

15/361550

Inventors:

- MANSFIELD MA, US
CHASE COLLINGS - HAYDEN ID, US
JEFFREY R. TOWNSEND - LONGMONT CO, US

International Classification:

A61B 17/285
A61B 18/14

Abstract:

A forceps includes first and second shaft members each having a jaw member disposed at a distal end thereof. One (or both) of the first and second jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. The first jaw member includes a jaw frame fixedly engaged to the first shaft member and a disposable jaw housing releasably engageable with the jaw frame. The disposable jaw housing includes a knife assembly disposed therein. The knife assembly includes a knife blade biased toward an initial position, wherein the knife blade is disposed within the jaw housing. The knife blade is moveable between the initial position and an extended position, wherein the knife blade extends at least partially from the jaw housing to cut tissue grasped between the first and second jaw members.

US Patent:

20150250527, Sep 10, 2015

Filed:

May 26, 2015

Appl. No.:

14/721088

Inventors:

- Mansfield MA, US
CHASE COLLINGS - HAYDEN ID, US
JEFFREY R. TOWNSEND - LONGMONT CO, US

International Classification:

A61B 18/14
A61B 17/285

Abstract:

A forceps includes first and second shaft members each having a jaw member disposed at a distal end thereof. One (or both) of the first and second jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. The first jaw member includes a jaw frame fixedly engaged to the first shaft member and a disposable jaw housing releasably engageable with the jaw frame. The disposable jaw housing includes a knife assembly disposed therein. The knife assembly includes a knife blade biased toward an initial position, wherein the knife blade is disposed within the jaw housing. The knife blade is moveable between the initial position and an extended position, wherein the knife blade extends at least partially from the jaw housing to cut tissue grasped between the first and second jaw members.