US 11,759,201 B2Granted

Surgical stapling system comprising an end effector including an anvil with an anvil cap

AssigneeCilag GmbH International

InventorsChester O. Baxter, III, Frederick E. Shelton, IV, Jerome R. Morgan

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Abstract

A surgical stapling system comprising an end effector, a firing assembly, a motorized system, an elongate shaft, and a handle assembly is disclosed. The end effector is configurable in an open configuration and a closed configuration and comprises an elongate channel, an anvil, and a staple cartridge including a plurality of staples removably stored therein. The firing assembly is movable from a starting position toward an ending position during a firing stroke. The staples are deployable from the staple cartridge based on the firing assembly moving toward the ending position. The motorized system is configured to drive the firing assembly toward the ending position. The anvil comprises an anvil body and an anvil cap welded to the anvil body. The anvil cap is configured to increase a stiffness of the anvil.

Claims23

Dependent claims

A surgical stapling system, comprising:

an end effector configurable in an open configuration and a closed configuration, comprising:
an elongate channel;
an anvil;
a staple cartridge removably positioned in said elongate channel, wherein said staple cartridge comprises a plurality of staples removably stored therein;
a firing assembly movable from a starting position toward an ending position during a firing stroke, wherein said staples are deployable from said staple cartridge based on said firing assembly moving toward said ending position, wherein said firing assembly comprises:
a first firing portion configured to maintain said end effector in said closed configuration as said firing assembly moves toward said ending position;
and
a second firing portion extending from said first firing portion, wherein said second firing portion comprises a plurality of laminated strips;
a motorized system configured to drive said firing assembly toward said ending position, wherein said motorized system comprises:
a motor;
a gear rotatable by said motor;
and
a rack configured to longitudinally move based on rotations of said gear, wherein said rack is operably coupled to said second firing portion, and wherein said firing assembly is movable toward said ending position based on longitudinal movement of said rack;
an elongate shaft including a bayonet connection interface;
and
a handle assembly;
wherein said anvil comprises:
an anvil body, comprising:
a first lateral surface;
a second lateral surface;
a first wall extending from said first lateral surface;
a second wall extending from said second lateral surface;
a first arc extending from said first wall;
and
a second arc extending from said second wall;
and
an anvil cap welded to said anvil body, wherein said anvil cap is configured to increase a stiffness of said anvil, wherein said anvil cap comprises a third arc, wherein said first arc, said second arc, and said third arc cooperatively define a circumferential outer perimeter of said anvil.

24 more elements

A surgical fastening system, comprising:

an end effector, comprising:
an elongate channel;
an anvil movable relative to said elongate channel between an open position and a closed position;
a fastener cartridge removably positioned in said elongate channel, wherein said fastener cartridge comprises a plurality of fasteners removably stored therein;
a firing assembly movable from a proximal position toward an distal position during a firing stroke, wherein said fasteners are deployable from said fastener cartridge based on said firing assembly moving toward said distal position, wherein said firing assembly comprises:
a coupling member configured to prevent said anvil from moving to said open position as said firing assembly moves toward said distal position;
and
a drive member extending from said coupling member, wherein said drive member comprises a plurality of laminated strips;
a motorized system configured to drive said firing assembly toward said distal position, wherein said motorized system comprises:
a motor;
a gear rotatable by said motor;
and
a rack configured to longitudinally translate based on rotations of said gear, wherein said rack is operably coupled to said drive member, and wherein said firing assembly is movable toward said distal position based on longitudinal translation of said rack;
an elongate shaft extending from said end effector, wherein said elongate shaft comprising a bayonet coupler;
and
a housing assembly, wherein said bayonet coupler is configured to engage said housing assembly to removably couple said elongate shaft to said housing assembly;
wherein said anvil comprises:
an anvil body;
and
an anvil cap welded to said anvil body, wherein said anvil cap is configured to increase a stiffness of said anvil.

17 more elements

A surgical stapling system, comprising:

an end effector, comprising:
an elongate channel;
an anvil, wherein said elongate channel and said anvil are configurable between an open configuration and a closed configuration;
a staple cartridge removably positioned in said elongate channel, wherein said staple cartridge comprises a plurality of staples removably stored therein;
a firing assembly movable from an unfired position toward a fired position during a firing stroke, wherein said staples are deployable from said staple cartridge based on said firing assembly moving toward said fired position, wherein said firing assembly comprises:
a head portion comprising a first flange configured to engage said anvil as said firing assembly moves toward said fired position and a second flange configured to engage said elongate channel as said firing assembly moves toward said fired position;
and
a tail portion extending from said head portion, wherein said tail portion comprises a plurality of laminated strips;
a motorized system configured to drive said firing assembly toward said fired position, wherein said motorized system comprises:
a motor;
a gear rotatable by said motor;
and
a rack configured to longitudinally move based on rotations of said gear, wherein said rack is operably coupled to said tail portion, and wherein said firing assembly is movable toward said fired position based on longitudinal movement of said rack;
an elongate shaft comprising a bayonet mounting member;
an articulation joint, wherein said end effector is rotatable relative to said elongate shaft about said articulation joint;
and
a housing assembly, wherein said bayonet mounting member is configured to engage said housing assembly to removably couple said elongate shaft to said housing assembly;
wherein said anvil comprises:
an anvil body;
and
an anvil cap welded to said anvil body, wherein said anvil cap is configured to increase a stiffness of said anvil.

18 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/024,013Filed 17 Sep 2020 · continuation
Priority: 23 Dec 2013
Published: US 2021/0068816 A111 Mar 2021
Granted: 19 Sep 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

A61B 17/064
Surgical instruments, devices or methods: surgical staples, i.e. penetrating the tissue
A61B 17/0644
Surgical staples, i.e. penetrating the tissue: penetrating the tissue, deformable to closed position
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 2017/00309
Constructional details of the flexible means: cut-outs or slits

Family

Application14/138,516Parent of this continuation · filed 23 Dec 2013
Application15/793,575Parent of this continuation · filed 25 Oct 2017
US 2021/0068816 A1Pre-grant publication · published 11 Mar 2021
US 11,026,677 B2Parent of this continuation · filed 8 Jun 2021
US 2015/0173756 A1Published application
US 2018/0110513 A1Published application
US 11,759,201 B2This patent

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