US 2021/0330322 A1Published application

Lockout engagement features for surgical stapler

AssigneeCilag GmbH International

InventorsRyan J. Laurent, Jason M. Rector, Robert J. Simms, Jeffrey C. Gagel, Nicholas Fanelli, Douglas B. Hoffman, Frederick E. Shelton, IV

Life of this patent

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Abstract

A surgical instrument comprises a body, shaft, and end effector. The shaft couples the end effector and body together. The end effector comprises an anvil and lower jaw configured to receive a surgical staple cartridge. The anvil is configured to pivot toward and away from the staple cartridge and lower jaw. The shaft assembly comprises a knife member configured to longitudinally translate to thereby substantially simultaneously cut clamped tissue and staple the severed tissue. The end effector may comprise lockout features configure to prevent longitudinal translation of the knife member. The end effector or staple cartridge may comprise lockout bypass features configured to prevent lockout of the knife member.

Claims2

Dependent claims

An apparatus, comprising:

(a) a body;
(b) an shaft assembly extending distally from the body;
and
(c) a end effector located at the distal end of the shaft assembly, wherein the end effector comprises:
(i) a cutting member, wherein the cutting member includes:
(A) a first vertical end,
(B) a blade, and
(C) a distally projecting feature vertically positioned between the first vertical end and the blade,
(ii) a lockout feature operable to selectively restrict distal advancement of the cutting member,
(iii) a jaw,
(iv) a staple cartridge configured for insertion in the jaw, wherein the staple cartridge comprises:
(A) a plurality of surgical staples, and
(B) a movable member operable to drive the staples into tissue in response to distal advancement of the cutting member, wherein the distally projecting feature is configured to engage the movable member, and
(v) a lockout bypass feature configured to engage the cutting member to thereby bypass the lockout feature.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/316,922Filed 11 May 2021
Priority: 25 Jun 2014
Published: 28 Oct 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

A61B 17/068
Surgical instruments, devices or methods: surgical staplers , e.g. containing multiple staples or clamps
A61B 17/072
Surgical staplers , e.g. containing multiple staples or clamps: for applying a row of staples in a single action, e.g. the staples being applied…
A61B 17/07207
For applying a row of staples in a single action, e.g. the staples being applied simultaneously: the staples being applied sequentially
A61B 17/07292
For applying a row of staples in a single action, e.g. the staples being applied simultaneously: reinforcements for staple line, e.g. pledgets

Family

Application14/314,298Continuation · filed 25 Jun 2014
Application16/266,592Continuation · filed 4 Feb 2019
Application17/316,922Continuation
US 10,314,577 B2Related patent
US 11,033,263 B2Related patent
US 12,016,554 B2Related patent
US 2015/0374363 A1Published application
US 2019/0239873 A1Published application
US 2021/0330322 A1This patent

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

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