Apparatus and method for performing a bypass procedure in a digestive system

• US 20060229643A1
• Filed: 06/06/2006
• Published: 10/12/2006
• Est. Priority Date: 03/06/2000
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Robertson, John Charles, Klinger, John, Aranyi, Ernie, Nolan, Tim, Ratcliff, Keith
• Granted Patent: US 9,173,658 B2
• Time in Patent Office: Days
• US Class Current: 606/153
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/1114 of the digestive tract, e.g. bowels or oesophagus
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/1135 End-to-side connections, e.g. T- or Y-connections Y-shaped blood vessel prostheses A61F2002/065
• CPC Class Codes: A61B 2017/1139 Side-to-side connections, e.g. shunt or X-connections

Abstract

Surgical instrumentation and methods for performing a bypass procedure in a digestive system incorporate laparoscopic techniques to minimize surgical trauma to the patient. The instrumentation includes an outer guide member dimensioned for insertion and passage through an esophagus of a patient and defining an opening therein extending at least along a portion of the length of the outer guide member, an elongate anvil delivery member at least partially disposed within the opening of the outer guide member and being adapted for longitudinal movement within the outer guide member between an initial position and an actuated position and an anvil operatively engageable with the delivery member. The anvil includes an anvil rod defining a longitudinal axis and an anvil head connected to the anvil rod. The anvil head is at least partially disposed within the opening of the outer guide member when in the initial position of the delivery member and is fully exposed from the distal end of the outer guide member upon movement of the delivery member to the actuated position.

Claims

1. An anvil adapter for facilitating connection of a detectable anvil rod to a circular anastomosis instrument, comprising an anvil adapter member defining a longitudinal axis and having first and second ends, the first end configured for attachment to a circlar anastomosis instrument, the second end having an interior surface portion defining a longitudinal bore for receiving an anvil rod, the interior surface portion being dimensioned to engage the anvil rod in locking arrangement therewith to connect the anvil adapter to the anvil rod.

2. The anvil adapter according to claim 1 wherein the second end of the anvil adapter member includes circumferentially arranged internal grooves dimensioned to receive external splines of the anvil rod to rotationally fix the anvil rod with respect to the anvil adapter.

3. The anvil adapter according to claim 1 wherein the interior surface portion of the second end has a predetermined degree of resiliency to thereby permit insertion of an enlarged mounting portion of the anvil rod within the longitudinal bore.

4. The anvil adapter according to claim 3 wherein the interior surface portion of the second end defines an abutment wall surface dimensioned to engage the enlarged mounting portion of the anvil rod.

5. An anvil adapter for facilitating connection of a detachable anvil rod to a circular anastomosis instrument, comprising an anvil adapter member defining a longitudinal axis and having first and second ends, the first end configured for attachment to a circular anastomosis instrument, the second end having a pair of jaws mounted for relative movement between an open position to receive the anvil rod and a closed position to engage the anvil rod in locking arrangement therewith to connect the anvil adapter to the avil rod.

6. The anvil adapter according to claim 5 wherein the pair of jaws are pivotally mounted about a pivot pin.

7. The anvil adapter according to claim 6 wherein the pair of jaws are normally biased to the closed position.

8. Then anvil according to claim 7 including an ejector mechanism for at least partially ejecting the anvil rod from the anvil adapter member upon movement of the pair of jaws to the open position thereof.

9. The adapter according to claim 8 wherein the ejector mechanism includes spring means operatively engageable with the anvil rod upon mounting of the anvil rod to the anvil adapter member.

10. The adapter according to claim 9 wherein the ejector mechanism includes an ejector plate engageable with the spring means and the anvil rod.

11. A method for facilitating an anastomosis procedure of tissue portions, comprising the steps of:

introducing an anvil assembly including an anvil rod and anvil head within a first tissue portion;

introducing a circular anastomosis instrument into a second tissue portion;

attaching an anvil adapter to the anvil rod; and

connecting the anvil adapter to the anastomosis instrument;

whereby upon completion of the steps of attaching and connecting the anvil assembly is operatively connected to the anastomosis instrument.

12. The method according to claim 11 wherein the step of attaching is performed prior to the step of connecting.

13. The method according to claim 11 wherein the step of attaching is performed subsequent to the step of connecting.

14. A surgical instrument which comprises:

a handle;

an elongated shaft member connected to the handle and extending therefrom, the shaft member defining a longitudinal axis and having proximal and distal ends,

an anvil mounted to the shaft member, the anvil including an anvil rod and an anvil head;

an anvil adapter having a first end configured for attachment to a circular anastomosis instrument and a second end releasably mounted to the anvil; and

release member extending through the shaft member and being movable to release the anvil from the anvil adapter.

15. The instrument according to claim 14 wherein the second end of the anvil adapter includes at least one member mounted for movement between an open position whereby the anvil adapter can receive and release the anvil rod and a closed position to engage the anvil rod in locking arrangement therewith to connect the anvil adapter to the anvil rod.

16. The instrument according to claim 15 wherein the anvil includes a release collar mounted about the anvil rod and operatively connected to the release member, the release collar engaging the one member of the anvil adapter upon movement of the release member to move the anvil adapter to the open position.

17. The instrument according to claim 16 wherein the second end of the anvil adapter includes a pair of jaws, the jaws mounted for movement between the open and closed position, the release collar being adapted to engage the jaw members to move the anvil adapter to the open position.

18. The instrument according to claim 17, including a manually engageable release actuator mounted to the handle and operatively connected to the release member to move the release member.

19. The instrument according to claim 18 wherein the anvil adapter includes an ejector for at least partially ejecting the anvil rod from the anvil adapter upon movement of the jaws to the open position.