Surgical stapling apparatus

Patent metadata

Field	Value
Publication number	US-10993718-B2
Application number	US-201816152935-A
Country	US
Kind code	B2
Filing date	Oct 5, 2018
Priority date	Aug 11, 2009
Publication date	May 4, 2021
Grant date	May 4, 2021

Abstract

A surgical stapling apparatus is provided and includes a housing having an actuator; an elongated member extending from the housing; an end effector disposed on an end of the elongated member, the end effector having a first jaw and a second jaw, the first jaw having a staple cartridge and the second jaw having a plurality of staple forming recesses; the staple cartridge having at least a first segment and a second segment, the first segment and the second segment each having a tissue contacting surface and staple receiving slots defined in the tissue contacting surface, the first segment and the second segment being biased toward the second jaw and movable; a biasing members for each of the first segment and the second segment; and a pressure sensor for each of the first segment and the second segment.

First claim

What is claimed is:

1. An intelligent surgical stapling apparatus, comprising:
a first jaw member and a second jaw member, the first jaw member having a first arm extending transversely from a proximal portion thereof, and the second jaw member having a second arm extending transversely from a proximal portion thereof, the first and second arms coupled together to enable movement between the first and the second jaw members;
a staple cartridge comprising:
opposed outer side surfaces;
a tissue contacting surface transverse to the opposed outer side surfaces and defining a longitudinal axis that extends between proximal and distal end portions of the tissue contacting surface, the tissue contacting surface defining a tissue contacting plane and positioned to extend distally along the longitudinal axis from the arms of the surgical stapling apparatus when the staple cartridge is coupled to one of the jaw members, the tissue contacting surface including a first segment and at least a second segment, each segment being movable relative to the other segment prior to a firing of the surgical stapling apparatus, each segment defining at least two staple receiving slots, each segment extending between an inner end portion and an outer end portion, the outer end portion of at least one of the segments extending to at least one of the opposed outer side surfaces of the staple cartridge, wherein the first segment is positioned on a support member, the first segment movable from a first position aligned with the tissue contacting plane to a second position away from the tissue contacting plane and closer to the support member;
an instrument handle; and
a controller in the instrument handle.

2. The surgical stapling apparatus according to claim 1 , wherein the support member is a spring, and wherein the first segment is floating on the spring and is positioned to move towards the spring and away from the tissue contacting plane as the first segment moves from the first position to the second position.

3. The surgical stapling apparatus according to claim 2 , wherein the first position is an expanded position and the second position is a depressed position relative to the second segment, wherein the spring is configured to urge the first segment toward the first position.

4. The surgical stapling apparatus according to claim 1 , further comprising a sensor operatively coupled to at least one of the first and second segments.

5. The surgical stapling apparatus according to claim 4 , wherein the sensor is a pressure sensor configured to sense a pressure from a movement of the at least one of the first and second segments.

6. The surgical stapling apparatus according to claim 4 , wherein the sensor is disposed in electrical communication with the controller and a power source.

7. The surgical stapling apparatus according to claim 1 , wherein the at least two staple receiving slots are arranged in longitudinally extending parallel rows.

8. The surgical stapling apparatus according to claim 7 , wherein the at least two staple receiving slots are staggered longitudinally with respect to one another.

9. The surgical stapling apparatus according to claim 1 , wherein the tissue contacting surface defines a knife slot that extends along the longitudinal axis between the proximal and distal end portions thereof, the knife slot separating the tissue contacting surface into a first side and a second side, the first segment being disposed on the first side of the knife slot, the second segment being disposed on the second side of the knife slot.

10. The surgical stapling apparatus according to claim 1 , wherein at least one of the first and second segments is V-shaped and extends towards the longitudinal axis.

11. The surgical stapling apparatus according to claim 1 , wherein at least one of the first and second segments is movable in at least one of a side-to-side direction and a longitudinal direction relative to the longitudinal axis, the side-to-side direction being transverse to the longitudinal direction.

12. The surgical stapling apparatus according to claim 1 , further comprising a detachable shaft attached to the handle and the first and second jaw member.

Assignees

• Covidien Lp

Inventors

• Zemlok Michael A
• Ross Adam
• Pribanic Russell
• Williams Ryan

Classifications

• A61B2017/00123

  and automatic shutdown · CPC title

• A61B2017/00115

  with audible or visual output · CPC title

• A61B2090/065

  for measuring contact or contact pressure · CPC title

• A61B2017/07271

  characterised by its cartridge · CPC title

• A61B2017/07257

  characterised by its anvil · CPC title