Electrical surgical instrument with optimized power supply and drive

• US 9,687,234 B2
• Filed: 09/19/2012
• Issued: 06/27/2017
• Est. Priority Date: 05/19/2006
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Bales, Jr., Thomas O., Smith, Kevin W., Deville, Derek Dee, Rivera, Carlos, Palmer, Matthew A.
• Primary Examiner(s): Chukwurah, Nathaniel
• Application Number:
  US13/622,819
• Publication Number:
  US 20130015232A1
• Time in Patent Office: 1,742 Days
• Field of Search: 2271751, 2271761, 2271791, 2271801, 2271811, 606 33, 606153, 606219
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/1114 of the digestive tract, e.g. bowels or oesophagus
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 2017/00017 Electrical control of surgical instruments
• CPC Class Codes: A61B 2017/00115 with audible or visual output with imaging means A61B90/37, A61B34/20
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/07257 characterised by its anvil
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge
• CPC Class Codes: A61B 2017/07278 characterised by its sled or its staple holder
• CPC Class Codes: A61B 2017/07285 characterised by its cutter
• CPC Class Codes: A61B 2090/032 pressure limiting, e.g. hydrostatic
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 90/03 Automatic limiting or abutting means, e.g. for safety

Abstract

A hand-held, electrically powered and controlled surgical stapler/cutter includes a handle shaped to fit in one hand of a user and a surgical end effector connected to the handle. The handle contains therein a selectively actuated, self-contained electric power supply having at least one battery cell, at least part of an anvil control assembly, and at least part of an electrically-powered stapler/cutter control assembly electrically connected to the power supply. The surgical end effector is operatively connected to each of the anvil control assembly and the stapler/cutter control assembly. The stapler/cutter control assembly staples and cuts tissue disposed at the surgical end effector when powered by the power supply.

Claims

1. A hand-held, electrically powered and controlled surgical device, comprising:

a surgical stapler having at least one actuation assembly to effect a surgical procedure when actuated wherein the intermediate position is between the start position and the fully-actuated position; and

a handle shaped to fit in one hand of a user and containing therein;

a self-contained electric power supply having at least one battery cell;

an electric motor having a drive train operatively coupled to the at least one actuation assembly to actuate the at least one actuation assembly when the motor is supplied with power; and

at least one limit switch that is operatively connected to the at least one actuation assembly and detects an intermediate position of the at least one actuation assembly wherein the intermediate position is between the start position and the fully-actuated position.

2. The device according to claim 1, wherein the battery cell is a lithium-based battery cell.

3. The device according to claim 1, wherein the battery cell is a lithium-manganese dioxide battery cell.

4. The device according to claim 1, wherein the end effector is a circular surgical stapler.

5. The device according to claim 1, wherein the end effector is a linear surgical stapler having a stapler cartridge between approximately 30 mm and approximately 100 mm in length.

6. The device according to claim 5, wherein the power supply actuates the linear surgical stapler at a linear cutting rate between approximately 4 mm/sec and approximately 40 mm/sec.

7. The device according to claim 6, wherein the power supply actuates the linear surgical stapler at a linear cutting rate of approximately 20 mm/sec.