IP Library Granted Patent US 11,291,449
Granted Patent B2
US 11,291,449 · App. 16/298,546 · Granted Apr 5, 2022

Surgical cutting instrument that analyzes tissue thickness

Inventors: Brett E. Swensgard (West Chester, OH); Bret W. Smith (South Lebanon, OH); Ryan J. Laurent (Loveland, OH)
Assignee: Cilag GmbH International
A61B17/105A61B17/068A61B17/07207A61B17/32A61B18/1445A61B2017/00022A61B2017/0023A61B2017/00398A61B2017/00734A61B2017/07214A61B2017/320052A61B2090/061A61B2090/064
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Quick Facts
Patent No.
US 11,291,449
App. No.
16/298,546
Filed
Mar 11, 2019
Granted
Apr 5, 2022
Kind
B2
Art Unit
3731
USPC
227/180.1
Abstract

A surgical instrument with a tissue-clamping end effector, where actuation of the instrument is locked out when the thickness of the tissue clamped in the end effector is not within a specified thickness range. The end effector may comprise a tissue thickness module that senses the thickness of the tissue clamped in the end effector. The surgical instrument also comprises a control circuit in communication with the tissue thickness module. The control circuit prevents actuation of a working portion of the end effector when the thickness of the tissue clamped in the end effector is not within the specified thickness range.

Claims (27)

1. A surgical instrument, comprising:

a handle assembly;

an electric motor positioned within the handle assembly;

an insertable pack removably positioned within the handle assembly, wherein the insertable pack comprises:

a battery electrically couplable to the electric motor; and

a controller electrically couplable to the electric motor;

a drive system coupled to the electric motor;

an end effector coupled to the drive system, wherein the end effector comprises:

first and second jaws;

a replaceable staple cartridge which is removably positioned within one of the first and second jaws;

a firing member coupled to the drive system; and

a tissue thickness sensing module configured to:

detect a thickness of tissue clamped in the end effector; and

store model information of the replaceable staple cartridge; and

a control circuit communicably connected to the tissue thickness sensing module, wherein the control circuit comprises the controller and is configured to:

identify a specified tissue thickness range based on model information of the replaceable staple cartridge;

compare the detected thickness of the tissue clamped in the end effector with the specified tissue thickness range; and

prevent actuation of the firing member when the detected thickness of the tissue clamped in the end effector is outside the specified tissue thickness range.

2. The surgical instrument of claim 1 , wherein the tissue thickness sensing module comprises:

a sensing device configured to detect the thickness of the tissue clamped in the end effector;

a second controller in communication with the sensing device; and

a radio module in communication with the second controller.

3. The surgical instrument of claim 1 , wherein the tissue thickness sensing module is further configured for wireless communication with the control circuit.

4. The surgical instrument of claim 1 , wherein the insertable pack further comprises a radio module.

5. The surgical instrument of claim 1 , wherein the control circuit comprises:

a radio module in communication with a radio module of the tissue thickness sensing module; and

a switching circuit electrically connected to the electric motor and the battery.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 27, 2021
From: ETHICON LLC
To: CILAG GMBH INTERNATIONAL
Reel/Frame 056601/0339 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2020
From: SWENSGARD, BRETT E.
To: ETHICON ENDO-SURGERY, LLC
Reel/Frame 053744/0587 →
CHANGE OF NAME Recorded Sep 11, 2020
From: ETHICON ENDO-SURGERY, LLC
To: ETHICON LLC
Reel/Frame 053747/0091 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2020
From: SMITH, BRET W.; LAURENT, RYAN J.
To: ETHICON LLC
Reel/Frame 053747/0189 →
Continuity (4)
Continuation 15059533 · Mar 3, 2016
Continuation 14496775 · Sep 25, 2014
Continuation 12647134 · Dec 24, 2009
Related Publication 20190269407A1 · Sep 5, 2019
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