Methods and devices for performing a surgical anastomosis

Patent metadata

Field	Value
Publication number	US-9757133-B2
Application number	US-201414326764-A
Country	US
Kind code	B2
Filing date	Jul 9, 2014
Priority date	Jul 9, 2014
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

A circular stapler is disclosed. The circular stapler includes a handle assembly, an elongate body, a cartridge assembly, a trocar, and a light source. The elongate body extends from the handle assembly and defines a longitudinal axis. The cartridge assembly is disposed adjacent a distal end of the elongate body and includes a pusher assembly. The pusher assembly is movable to cause staples to be ejected from the cartridge assembly. The trocar is disposed in mechanical cooperation with the cartridge assembly and is longitudinally advanceable to puncture tissue. The light source is disposed in mechanical cooperation with the trocar, and is configured to project a light beam distally of the trocar.

First claim

The invention claimed is:

1. A circular stapler comprising:
a handle assembly;
an elongate body extending from the handle assembly and defining a longitudinal axis;
a cartridge assembly disposed adjacent a distal end of the elongate body, the cartridge assembly including a pusher assembly, the pusher assembly being movable to cause staples to be ejected from the cartridge assembly;
a trocar disposed in mechanical cooperation with the cartridge assembly and being longitudinally advanceable to puncture tissue, a distal tip of the trocar is one of transparent or translucent; and
a light source disposed in mechanical cooperation with the trocar, the light source configured to project a light beam distally of the trocar.

2. The circular stapler of claim 1 , wherein the light source includes a laser.

3. The circular stapler of claim 2 , wherein the laser is at least partially disposed within the trocar.

4. The circular stapler of claim 1 , wherein the light source is disposed within the trocar.

5. The circular stapler of claim 1 , wherein the light source is configured to project a light beam in a concentrated area directly in the path of travel of the trocar.

6. The circular stapler of claim 1 , wherein the light source is configured to project a light beam that is approximately the size of a diameter of a portion of the trocar that is disposed distally of the cartridge assembly when the trocar is in a longitudinally advanced position.

7. The circular stapler of claim 1 , where a distal tip of an axial center of the trocar is solid.

8. The circular stapler of claim 1 , wherein a distal portion of the light source is longitudinally fixed from movement with respect to the trocar.

9. The circular stapler of claim 1 , wherein the light source is longitudinally fixed from movement with respect to the trocar.

10. The circular stapler of claim 1 , further including an anvil assembly disposed distally of the cartridge assembly and selectively engageable with the cartridge assembly, wherein an output of the light source is retained between the anvil assembly and the cartridge assembly.

11. A circular stapler comprising:
a handle assembly;
an elongate body extending from the handle assembly and defining a longitudinal axis;
a cartridge assembly disposed adjacent a distal end of the elongate body, the cartridge assembly including a pusher assembly, the pusher assembly being movable to cause staples to be ejected from the cartridge assembly;
a trocar disposed in mechanical cooperation with the cartridge assembly and being longitudinally advanceable to puncture tissue, a distal tip of an axial center of the trocar being solid; and
a light source disposed in mechanical cooperation with the trocar, the light source configured to project a light beam distally of the trocar.

12. The circular stapler of claim 11 , wherein an entirety of the light source is longitudinally fixed from movement with respect to the trocar.

13. The circular stapler of claim 11 , wherein the distal tip of the trocar is one of transparent or translucent.

Assignees

• Covidien Lp

Inventors

• Latimer Cassandra
• Ward Arlen

Classifications

• A61B17/1155 Primary

  Circular staplers comprising a plurality of staples · CPC title

• A61B2090/0811

  for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument · CPC title

• A61B17/064

  Surgical staples, {i.e. penetrating the tissue} · CPC title

• A61B17/105

  Wound clamp magazines (for packaging sharps A61B50/3001) · CPC title

• A61B90/30

  Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure · CPC title