Motor-driven surgical instrument

• US 10,201,363 B2
• Filed: 05/10/2018
• Issued: 02/12/2019
• Est. Priority Date: 01/31/2006
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Shelton, IV, Frederick E.
• Primary Examiner(s): Chukwurah, Nathaniel
• Application Number:
  US15/976,359
• Publication Number:
  US 20180256185A1
• Time in Patent Office: 278 Days
• Field of Search: 227 19, 2271751, 2271761, 2271801, 606 1, 606 51, 606 52, 606139, 606142, 606205, 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 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/105 Wound clamp magazines for packaging sharps A61B50/3001
• CPC Class Codes: A61B 17/32 Surgical cutting instruments A61B18/042 takes precedence; suture cutters A61B17/0467; instruments for ligaturing or cutting A61B17/128; instruments for rupturing the amniotic membrane A61B17/4208; specially adapted knives for eye surgery A61F9/0133
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 34/76 Manipulators having means for providing feel, e.g. force or tactile feedback

Abstract

In various embodiments, a surgical instrument system comprising an end effector, an elongate shaft, a motor-powered closure member, and a motor-powered firing system is disclosed. The end effector comprises an anvil and a cartridge channel. The cartridge channel is configured to receive a staple cartridge. The motor-powered closure member is moveable between a first position and a second position during a closure stroke. The motor-powered closure member couples the anvil and the channel during the closure stroke. The motor-powered firing system comprises a first flange configured to engage the anvil during a firing stroke, a second flange configured to engage the cartridge channel during the firing stroke, and a rotatable drive screw operable to transmit the firing stroke. The first and second flanges couple the anvil and the channel during the firing stroke. The motor-powered closure member and the motor-powered firing system are separately actuatable.

Claims

1. A surgical instrument system, comprising:

an end effector, comprising;

an anvil moveable between an open position and a closed position; and

a cartridge channel configured to receive a staple cartridge;

an elongate shaft comprising a longitudinal shaft axis;

a motor-powered closure member moveable between a first position and a second position during a closure stroke, wherein said motor-powered closure member couples said anvil and said cartridge channel during said closure stroke; and

a motor-powered firing system, comprising;

a first flange configured to engage said anvil during a firing stroke;

a second flange configured to engage said cartridge channel during said firing stroke, wherein said first and second flanges couple said anvil and said cartridge channel during said firing stroke, and wherein said motor-powered closure member and said motor-powered firing system are separately actuatable; and

a rotatable drive screw operable to transmit said firing stroke.

2. The surgical instrument system of claim 1, further comprising said staple cartridge.

3. The surgical instrument system of claim 1, wherein said end effector comprises a proximal end and a distal end, and wherein said first position is closer to said distal end than said second position.

4. A surgical instrument, comprising:

an end effector, comprising;

an anvil moveable between an open position and a closed position; and

a cartridge channel configured to receive a replaceable staple cartridge;

an elongate shaft comprising a shaft axis;

a motor-powered closure member, wherein said motor-powered closure member is moveable between a first position and a second position during a closure motion, and wherein said motor-powered closure member limits the movement of said anvil and said cartridge channel when said motor-powered closure member is in said second position;

a motor-powered firing member, comprising;

an upper tab configured to engage said anvil; and

a lower tab configured to engage said cartridge channel, wherein said motor-powered firing member limits the movement of said anvil and said cartridge channel during a firing stroke, and wherein said motor-powered closure member and said motor-powered firing member are independently actuatable; and

a drive screw configured to move said motor-powered firing member distally during said firing stroke.

5. The surgical instrument of claim 4, further comprising said replaceable staple cartridge.

6. The surgical instrument of claim 4, wherein said end effector comprises a proximal end and a distal end, and wherein said first position is closer to said distal end than said second position.

7. A surgical assembly, comprising:

an end effector, comprising;

an anvil moveable between an open position and a clamped position; and

a staple cartridge jaw;

an elongate shaft comprising a shaft axis;

a motor-driven clamping member, wherein said motor-driven clamping member is moveable between a first position and a second position during a clamping motion, and wherein said motor-driven clamping member couples said anvil and said cartridge jaw when said motor-driven clamping member is in said second position;

a motor-driven firing member, comprising;

a first portion configured to engage said anvil; and

a second portion configured to engage said cartridge jaw, wherein said motor-driven firing member couples said anvil and said cartridge jaw during a staple firing stroke, and wherein said motor-driven clamping member and said motor-driven firing member are independently and separately operable; and

a rotatable drive shaft configured to drive said motor-driven firing member distally during said staple firing stroke.