IP Library › Granted Patent US 12,508,024
Granted Patent B2
US 12,508,024 · App. 18/271,384 · Granted Dec 30, 2025

Surgical stapling instruments

Inventors: Babak Jasemian (Trabuco Canyon, CA); Tibor Laszlo Hites (Sonora, CA)
Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
A61B17/07207A61B34/37A61B90/98A61B2017/0003A61B2017/07271A61B2017/2946A61B2034/302
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Quick Facts
Patent No.
US 12,508,024
App. No.
18/271,384
Filed
Jul 7, 2023
Granted
Dec 30, 2025
Kind
B2
Art Unit
3731
USPC
227/175.4
Abstract

Surgical stapling instruments include mechanisms for identifying and/or deactivating stapler cartridges for use with the instruments. The stapling instrument includes a drive member for actuating a staple cartridge and a locking member movable from a disabled position permitting distal translation of the drive member through a staple firing stroke, to a locking position inhibiting distal translation of the drive member through the staple firing stroke. The staple cartridge may include a switch movable in a lateral direction to either maintain the locking member in the disabled position or to allow the locking member to move into the locking position.

Claims (36)

1 . A surgical instrument comprising:

an end effector having first and second jaws;

a drive member configured to translate distally through the end effector;

a stapler cartridge comprising a housing defining a longitudinal axis and having at least one row of staple pockets for receiving staples therein and a channel for receiving the drive member;

a switch defining a proximal portion and a distal portion and having a contact surface on the proximal portion at least partially disposed within the channel such that the drive member engages the contact surface and moves the switch as the drive member translates through the channel;

a locking member movable from a disabled position permitting translation of the drive member through the channel, to a locking position inhibiting translation of the drive member through the channel, wherein the switch is movable in a lateral direction relative to the longitudinal axis, from a first position wherein the switch maintains the locking member in the disabled position to a second position wherein the switch disengages the locking member; and

wherein the contact surface extends transversely into the channel at an angle of less than about 45 degrees with the longitudinal axis.

2 . The surgical instrument of claim 1 , wherein the angle is less than about 30 degrees.

3 . The surgical instrument of claim 1 , wherein the contact surface extends from a proximal end of the switch to a position at least about halfway to a midpoint between the proximal and distal ends.

4 . The surgical instrument of claim 1 , wherein the contact surface extends to at least the midpoint between the proximal and distal ends of the switch.

5 . The surgical instrument of claim 1 , wherein the contact surface comprises a first surface extending transversely into the channel and at least a second surface distal to the first surface and extending transversely into the channel from the first surface in a distal direction, wherein the second surface defines a smaller angle with the longitudinal axis than the first surface.

6 . The surgical instrument of claim 5 , wherein the drive member contacts the first and second surfaces as the drive member moves distally through the channel.

7 . The surgical instrument of claim 1 , wherein the switch is movable in a lateral direction as the drive member engages the contact surface.

8 . The surgical instrument of claim 1 , wherein the switch is positioned within a slot formed on a proximal portion of the staple cartridge, wherein the slot formed on the proximal portion of the cartridge includes one or more detents formed therein, the detents being configured to provide mechanical resistance when the drive member engages the switch.

9 . The surgical instrument of claim 1 , wherein the switch is configured to provide a detectable resistance upon engagement of the drive member with the contact surface.

10 . The surgical instrument of claim 9 , wherein the cartridge is operatively coupled to a control unit, the control unit configured to process the detectable resistance to identify the stapler cartridge, wherein the control unit includes a control device of a robotic surgical system.

11 . A surgical instrument comprising:

an end effector having first and second jaws;

a drive member configured to translate distally through the end effector;

a stapler cartridge disposed within the second jaw and comprising a housing defining a longitudinal axis and having a tissue contacting surface facing the first jaw with at least one row of staple pockets for receiving staples therein and a channel for receiving the drive member, the housing further comprising a proximal portion with an upper surface disposed more proximate to the first jaw than the tissue contacting surface of the housing, wherein the upper surface is disposed laterally from the channel relative to the longitudinal axis;

a switch having a contact surface at least partially disposed within the channel such that the drive member contacts the contact surface as the drive member translates through the channel; and

two or more protrusions extending towards the first jaw from the upper surface of the proximal portion of the housing.

12 . The surgical instrument of claim 11 , wherein the protrusions are deformable.

13 . The surgical instrument of claim 11 , wherein the the first jaw is an upper jaw and the second jaw is a lower jaw movable between open and closed positions, the second lower jaw having a cavity for receiving the cartridge, wherein the protrusions extend from the upper surface of the proximal portion of the cartridge to a lower surface of the first jaw when the first and second jaws are in the closed positions.

14 . The surgical instrument of claim 11 , wherein the protrusions taper inwardly from a first end portion to a second end.

15 . A surgical instrument comprising:

an end effector having first and second jaws;

a drive member configured to translate distally through the end effector;

a stapler cartridge comprising a housing defining a longitudinal axis and having at least one row of staple pockets for receiving staples therein and a channel for receiving the drive member;

a switch defining a proximal portion and a distal portion and having a contact surface on the proximal portion at least partially disposed within the channel such that the drive member engages the contact surface and moves the switch as the drive member translates through the channel; and

wherein the contact surface extends transversely into the channel at an angle of less than about 45 degrees with the longitudinal axis and wherein the contact surface comprises a first surface extending transversely into the channel and at least a second surface distal to the first surface and extending transversely into the channel from the first surface in a distal direction, wherein the second surface defines a smaller angle with the longitudinal axis than the first surface.

16 . The surgical instrument of claim 15 , wherein the angle is less than about 30 degrees.

17 . The surgical instrument of claim 16 , wherein the contact surface extends from a proximal end of the switch to a position at least about halfway to a midpoint between the proximal and distal ends.

18 . The surgical instrument of claim 16 , wherein the contact surface extends to at least the midpoint between the proximal and distal ends of the switch.

19 . The surgical instrument of claim 16 , wherein the switch is positioned within a slot formed on a proximal portion of the staple cartridge, wherein the slot formed on the proximal portion of the cartridge includes one or more detents formed therein, the detents being configured to provide mechanical resistance when the drive member engages the switch.

20 . The surgical instrument of claim 16 , wherein the switch is configured to provide a detectable resistance upon engagement of the drive member with the contact surface.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 7, 2023
From: JASEMIAN, BABAK; HITES, TIBOR LASZLO
To: INTUITIVE SURGICAL OPERATIONS, INC.
Reel/Frame 064188/0489 →
Continuity (2)
Provisional Application 63134962 · Jan 8, 2021
Related Publication 20240065690A1 · Feb 29, 2024
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