Surgical stapling apparatus including firing force regulation

• US 9,867,618 B2
• Filed: 06/26/2015
• Issued: 01/16/2018
• Est. Priority Date: 02/14/2008
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Hall, Steven G., Tanguay, Randall J., Messerly, Jeffrey D., Robertson, Galen C., Zwolinski, Andrew M., Shelton, IV, Frederick E., Hueil, Geoffrey C., Ortiz, Mark S., Hoffman, Douglas B., Weizman, Patrick A., Bruewer, Dean B., Blair, Gregory B.
• Primary Examiner(s): Smith, Scott A.
• Application Number:
  US14/752,127
• Publication Number:
  US 20150297226A1
• Time in Patent Office: 935 Days
• Field of Search: 227 19, 2271751, 2271752, 2271761, 2271801, 606139, 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 17/0682 for applying U-shaped staples or clamps, e.g. without a forming anvil
• CPC Class Codes: A61B 17/0686 having a forming anvil staying below the tissue during stapling
• 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 17/105 Wound clamp magazines for packaging sharps A61B50/3001
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 2017/0023 disposable
• CPC Class Codes: A61B 2017/00367 Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00407 Ratchet means
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00946 malleable
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge
• CPC Class Codes: A61B 2017/07285 characterised by its cutter
• CPC Class Codes: A61B 2017/2901 Details of shaft
• CPC Class Codes: A61B 2017/2905 flexible
• CPC Class Codes: A61B 2017/2906 Multiple forceps
• CPC Class Codes: A61B 2017/2908 Multiple segments connected by articulations
• CPC Class Codes: A61B 2017/291 : the position of the handle being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2923 : Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/2925 : Pistol grips
• CPC Class Codes: A61B 2017/2927 : the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2929 : with a head rotatable about the longitudinal axis of the shaft
• CPC Class Codes: A61B 2017/320052 : Guides for cutting instruments by marking A61B2090/395
• CPC Class Codes: A61B 2090/0813 : Accessories designed for easy sterilising, i.e. re-usable
• CPC Class Codes: A61B 50/00 : Containers, covers, furniture or holders specially adapted for surgical or diagnostic appliances or instruments, e.g. sterile covers drapes specially adapted for instruments A61B46/10
• CPC Class Codes: A61B 90/70 : Cleaning devices specially adapted for surgical instruments

Abstract

A surgical stapling system for treating the tissue of a patient is provided. Various embodiments of the surgical stapling system include a handle including a rotary motion generator, a shaft extending from the handle, and a disposable loading unit attachable to the shaft. The disposable loading unit includes a cartridge body including a distal end, staples removably stored in the cartridge body, and a firing system, wherein the firing system includes a cutting portion configured to cut the tissue. The surgical stapling system includes an actuation system configured to regulate a firing force applied to the firing system by the rotary motion generator.

Claims

1. A surgical stapling system for treating the tissue of a patient, comprising:

a handle comprising a rotary motion generator;

a shaft extending from said handle;

a disposable loading unit attachable to said shaft, said disposable loading unit comprising;

a cartridge body including a distal end;

staples removably stored in said cartridge body; and

a firing system movable toward said distal end, wherein said firing system is configured to fire said staples from said cartridge body to staple the tissue, and wherein said firing system comprises a cutting portion configured to cut the tissue; and

an actuation system configured to regulate a firing force applied to said firing system by said rotary motion generator, wherein said actuation system is configured to modify the application of said firing force to said firing system when a load resulting from firing said staples and cutting the tissue exceeds a predetermined magnitude.

2. The surgical stapling system of claim 1, wherein said actuation system is configured to disengage said rotary motion generator from said firing system when said firing force exceeds said predetermined magnitude.

3. The surgical stapling system of claim 2, further comprising a retraction system configured to retract said firing system after said rotary motion generator has been disengaged from said firing system.

4. The surgical stapling system of claim 1, wherein said rotary motion generator is rendered ineffective when said load exceeds said predetermined magnitude.

5. A surgical stapling system for treating the tissue of a patient, comprising:

a handle;

a shaft extending from said handle;

a disposable loading unit attachable to said shaft, said disposable loading unit comprising;

a cartridge body including a distal end;

staples removably stored in said cartridge body; and

a firing system movable toward said distal end, wherein said firing system is configured to fire said staples from said cartridge body to staple the tissue, and wherein said firing system comprises a cutting portion configured to cut the tissue; and

an actuation system configured to apply a firing force to said firing system to move said firing system toward said distal end, wherein said actuation system is configured to stop the application of said firing force to said firing system when a load resulting from firing said staples and cutting the tissue exceeds a predetermined magnitude.

6. A surgical stapling system for treating the tissue of a patient, comprising:

a handle;

a shaft extending from said handle;

a stapling assembly attachable to said shaft, said stapling assembly comprising;

a cartridge body including a distal end;

staples removably stored in said cartridge body; and

a firing system movable toward said distal end, wherein said firing system is configured to fire said staples from said cartridge body to staple the tissue, and wherein said firing system comprises a cutting portion configured to cut the tissue; and

an actuation system configured to apply a firing force to said firing system to move said firing system toward said distal end, wherein said actuation system is configured to stop the application of said firing force to said firing system when a load resulting from firing said staples and cutting the tissue reaches a predetermined magnitude.