US 2016/0095617 A1Published application

End effector with a clamp arm assembly and blade

AssigneeEthicon Endo-Surgery, Inc.

InventorsDaniel W. Price, Jeffrey D. Messerly, Prasanna Malaviya, Robert J. Beetel, III, Timothy G. Dietz, David A. Witt, Douglas J. Turner, David K. Norvell, Kip M. Rupp, John A. Weed, III, Kevin D. Felder, Kevin L. Houser, Paul T. Franer, Craig N. Faller, Craig T. Davis

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Abstract

An end effector of a surgical instrument may generally comprise a blade, and a clamp arm assembly comprising a clamp arm movable between an open position and a closed position relative to the blade, and at least one camming member rotationally attached to the clamp arm, wherein the at least one camming member is configured to rotate relative to the blade as the clamp arm moves from the open position to the closed position.

Claims24

Dependent claims

A surgical instrument, comprising:

a shaft comprising a proximal end and a distal end;
an ultrasonic waveguide at least partially positioned within the shaft, the waveguide having a proximal end and a distal end;
an ultrasonically actuated blade positioned at the distal end of the waveguide;
and
a clamp arm assembly pivotally connected to the distal end of the shaft, wherein the clamp arm assembly comprises at least two camming members rotationally attached to a clamp arm, wherein the clamp arm is movable between an open position and a closed position relative to the blade to compress tissue intermediate the clamp arm and the blade when in the closed position, and wherein the at least two camming members rotate relative to the clamp arm to separate tissue layers when the clamp arm moves between the open position and the closed position.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/963,686Filed 9 Dec 2015
Priority: 15 Mar 2013
Published: 7 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

A61B 17/2909
Forceps for use in minimally invasive surgery: handles
A61B 17/320092
Using mechanical vibrations, e.g. ultrasonic: with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
A61B 18/1445
Probes having pivoting end effectors, e.g. forceps: at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
A61B 90/03
Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00,…

Family

Application13/833,706Division · filed 15 Mar 2013
Application14/963,686Division
US 2014/0276738 A1Published application
US 9,241,728 B2Related patent
US 9,743,947 B2Related patent
US 2016/0095617 A1This patent

From the US filing history. Foreign family members aren’t listed.