IP Library › Granted Patent US 12,207,833
Granted Patent B2
US 12,207,833 · App. 18/210,400 · Granted Jan 28, 2025

Apparatus for endoscopic procedures

Inventors: Stanislaw Kostrzewski (Newton, CT); Ernest Aranyi (Easton, CT); Paul Scirica (Huntington, CT)
Assignee: Covidien LP
A61B17/29A61B17/00234A61B17/07207A61B17/07292A61B2017/00314A61B2017/00327A61B2017/00398A61B2017/0046A61B2017/00473A61B2017/00685A61B2017/00734A61B2017/07214A61B2017/07271A61B2017/07278A61B2017/07285A61B2017/2908A61B2017/2923A61B2017/320052A61B2034/715A61B2090/0814
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Quick Facts
Patent No.
US 12,207,833
App. No.
18/210,400
Filed
Jun 15, 2023
Granted
Jan 28, 2025
Kind
B2
Art Unit
3731
USPC
606/1
Abstract

The technology relates to a surgical system with an end effector. The end effector may include a drive beam, an anvil assembly, and a cartridge assembly movable in relation to the anvil assembly between an open position and a clamped position. The cartridge assembly includes a cartridge body, staples supported within the cartridge body, and an actuation sled assembly. The actuation sled assembly includes an actuation sled and a knife blade supported on the actuation sled for movement between a concealed position and a raised position. The actuation sled assembly is movable within the cartridge body in response to movement of the drive beam from the beam retracted position to the beam advanced position, from a sled retracted position to a sled advanced position to eject the staples from the cartridge body.

Claims (33)

1. An end effector for a surgical instrument comprising:

a drive beam having a vertical strut, the drive beam movable between a beam retracted position and a beam advanced position;

an anvil assembly; and

a cartridge assembly movable in relation to the anvil assembly between an open position and a clamped position, the cartridge assembly including a cartridge body, staples supported within the cartridge body, and an actuation sled assembly, the actuation sled assembly including an actuation sled and a knife blade supported on the actuation sled for movement between a concealed position and an unconcealed position, the actuation sled assembly movable within the cartridge body, in response to movement of the drive beam from the beam retracted position to the beam advanced position, from a sled retracted position to a sled advanced position to eject the staples from the cartridge body,

wherein the drive beam is positioned to engage the knife blade as the drive beam moves from the beam retracted position towards the beam advanced position to move the knife blade from the concealed position to the unconcealed position.

2. The end effector of claim 1 , wherein the actuation sled defines a slit, and the knife blade is housed within the slit in the concealed position of the knife blade.

3. The end effector of claim 1 , wherein the vertical strut of the drive beam includes an abutment surface, and the knife blade has a proximal end that includes an actuating surface, the abutment surface of the drive beam movable into engagement with the actuating surface of the knife blade to move the knife blade from the concealed position to the unconcealed position.

4. The end effector of claim 3 , wherein the abutment surface remains engaged with the actuating surface as the actuation sled assembly moves from the sled retracted position to the sled advanced position to retain the knife blade in the advanced position.

5. The end effector of claim 1 , wherein the knife blade is pivotably supported on the actuation sled.

6. The end effector of claim 5 , wherein the actuation sled assembly includes a pin that pivotably couples the knife blade to the actuation sled.

7. The end effector of claim 1 , wherein the cartridge assembly includes staple pushers that engage the staples within the cartridge body, and the actuation sled of the actuation sled assembly is movable into engagement with the staple pushers as the actuation sled assembly moves from the sled retracted position to the sled advanced position to sequentially eject the staples from the cartridge body.

8. The end effector of claim 1 , wherein the cartridge body of the cartridge assembly defines a longitudinal knife slot, and the knife blade extends from the longitudinal knife slot when the knife blade is in the unconcealed position.

9. An electromechanical surgical system comprising:

a shaft assembly having a proximal portion and a distal portion; and

an end effector supported on the distal portion of the shaft assembly, the end effector including:

a drive beam having a vertical strut, the drive beam movable between a beam retracted position and a beam advanced position;

an anvil assembly; and

a cartridge assembly movable in relation to the anvil assembly between an open position and a clamped position, the cartridge assembly including a cartridge body, staples supported within the cartridge body, and an actuation sled assembly, the actuation sled assembly including an actuation sled and a knife blade supported on the actuation sled for movement between a concealed position and an unconcealed position, the actuation sled assembly movable within the cartridge body, in response to movement of the drive beam from the beam retracted position to the beam advanced position, from a sled retracted position to a sled advanced position to eject the staples from the cartridge body,

wherein the drive beam is positioned to engage the knife blade as the drive beam moves from the beam retracted position towards the beam advanced position to move the knife blade from the concealed position to the unconcealed position.

10. The electromechanical surgical system of claim 9 , further including a hand-held powered surgical instrument, the proximal portion of the shaft assembly configured for selective attachment to the hand-held powered surgical instrument.

11. The electromechanical surgical system of claim 9 , wherein the end effector is coupled to the distal portion of the of the shaft assembly to facilitate articulation of the end effector in relation to the shaft assembly.

12. The electromechanical surgical system of claim 9 , wherein the actuation sled defines a slit, and the knife blade is housed within the slit in the concealed position of the knife blade.

13. The electromechanical surgical system of claim 9 , wherein the vertical strut of the drive beam includes an abutment surface, and the knife blade has a proximal end that includes an actuating surface, the abutment surface of the drive beam movable into engagement with the actuating surface of the knife blade to move the knife blade from the concealed position to the unconcealed position.

14. The electromechanical surgical system of claim 13 , wherein the abutment surface remains engaged with the actuating surface as the actuation sled assembly moves from the sled retracted position to the sled advanced position to retain the knife blade in the advanced position.

15. The electromechanical surgical system of claim 9 , wherein the knife blade is pivotably supported on the actuation sled.

16. The electromechanical surgical system of claim 15 , wherein the actuation sled assembly includes a pin that pivotably couples the knife blade to the actuation sled.

17. The electromechanical surgical system of claim 9 , wherein the cartridge assembly includes staple pushers that engage the staples within the cartridge body, and the actuation sled of the actuation sled assembly is movable into engagement with the staple pushers as the actuation sled assembly moves from the sled retracted position to the sled advanced position to sequentially eject the staples from the cartridge body.

18. The electromechanical surgical system of claim 9 , wherein the cartridge body of the cartridge assembly defines a longitudinal knife slot, and the knife blade extends from the longitudinal knife slot when the knife blade is in the unconcealed position.

19. An end effector for a surgical instrument comprising:

an anvil assembly;

a cartridge assembly coupled to the anvil assembly to facilitate movement of the anvil and the cartridge assembly between an open position and a clamped position, the cartridge assembly including a cartridge body, staples supported within the cartridge body, and an actuation sled assembly, the actuation sled assembly including an actuation sled and a knife blade supported on the actuation sled for movement between a concealed position and an unconcealed position, the actuation sled assembly movable within the cartridge body from a sled retracted position to a sled advanced position to eject the staples from the cartridge body; and

a drive beam movable in relation to the anvil and the cartridge assembly from a beam retracted position to a beam advanced position to move the actuation sled assembly from the sled retracted position to the sled advanced position, wherein the drive beam is positioned to engage the knife blade as the drive beam moves from the beam retracted position towards the beam advanced position to move the knife blade from the concealed position to the unconcealed position.

20. The end effector of claim 19 , wherein the actuation sled defines a slit, and the knife blade is housed within the slit in the concealed position of the knife blade.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 15, 2023
From: KOSTRZEWSKI, STANISLAW; ARANYI, ERNEST; SCIRICA, PAUL
To: COVIDIEN LP
Reel/Frame 063965/0302 →
Continuity (12)
Continuation 17984525 · Nov 10, 2022
Continuation 17544554 · Dec 7, 2021
Continuation 16738076 · Jan 9, 2020
Continuation 15294813 · Oct 17, 2016
Division 13891288 · May 10, 2013
Continuation In Part 13444228 · Apr 11, 2012
Continuation In Part 13280898 · Oct 25, 2011
Continuation In Part 13280859 · Oct 25, 2011
Provisional Application 61779873 · Mar 13, 2013
Provisional Application 61672891 · Jul 18, 2012
Provisional Application 61659116 · Jun 13, 2012
Related Publication 20230320744A1 · Oct 12, 2023
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