Tool for performing end-to-end anastomosis

• US 6,905,504 B1
• Filed: 02/26/2002
• Issued: 06/14/2005
• Est. Priority Date: 02/26/2002
• Status: Expired due to Fees

• Current Assignee: Aesculap AG (Lonza Group AG)
• Original Assignee: Cardica Incorporated
• Inventors: Vargas, Jaime S.
• Primary Examiner(s): Nguyen, Anhtuan T.
• Assistant Examiner(s): Pantuck, Bradford C
• Application Number:
  US10/083,235
• Time in Patent Office: 1,204 Days
• Field of Search: 606/153, 606/219, 606/221, 606/149, 606/150, 227/175.1, 227/181.1, 227/179.1
• US Class Current: 606/153
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/1152 applying the staples on the outside of the lumen
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/1103 Approximator
• CPC Class Codes: A61B 2017/1107 for blood vessels
• CPC Class Codes: A61B 2017/1132 End-to-end connections
• CPC Class Codes: A61B 2017/2911 rings

Abstract

A tool for performing anastomosis connects two tissue structures end-to-end. An end of each of the two tissue structures is sized to a known interface dimension with a tissue preparation device, and two or more cuts are made in that end to create at least two flaps. a clamp holds each tissue structure, and each clamp may be integrated with a tissue preparation device. The clamps are movable relative to one another, and are registered together such that the flaps of one tissue structure are pressed against the corresponding flaps of the other tissue structure when the clamps come together. Each flap of one tissue structure is connected to a corresponding flap on the other corresponding tissue structure with at least one connector such as a staple or other fastener.

Claims

1. A tool for performing end-to-end anastomosis between a first tissue structure and a second tissue structure each having at least two flaps at one end, comprising:

a first clip configured to hold at least one flap of the first tissue structure, wherein said first clip is movable between an opened position and a closed position in which said first clip compresses the flap,

a second clip configured to hold at least one flap of the second tissue structure, wherein said second clip is movable between an opened position and a closed position in which said second clip compresses the flap, wherein said clips are movable from a first position spaced apart from one another to a second position closer to one another in which each flap held by said first clip abuts a corresponding flap held by said second clip; and

at least one connector deployer oriented to deploy at least one connector completely through at least one of two abutting flaps.

2. The tool of claim 1, further comprising a first clamp configured to hold the first tissue structure, and a second clamp configured to hold the second tissue structure;

wherein said first clip is connected to said first clamp and said second clip is connected to said second clamp.

3. The tool of claim 2, further comprising a jig, wherein each said clamp is connected to said jig.

4. The tool of claim 3, wherein at least one said clamp is fixed to said jig.

5. The tool of claim 3, wherein said jig comprises at least one rail, and at least one said clamp is slidably connected to at least one said rail.

6. The tool of claim 3, further comprising a handle connected to each clamp, wherein said handle is configured to urge at least one said clamp relative to said jig.

7. The tool of claim 3, wherein one said clamp further comprises at least one alignment boss, and wherein the other said clamp comprises at least one boss receiver defined therein.

8. The tool of claim 7, wherein each said alignment boss is substantially tubular.

9. The tool of claim 2, wherein at least one clamp comprises an actuator configured to actuate at least one said connector deployer.

10. The tool of claim 9, further comprising a channel defined in at least one said clamp, wherein said actuator is movable through said channel relative to at least one said connector deployer.

11. The tool of claim 2, wherein a first clamp comprises at least one connector deployer, and a second clamp comprises at least one connector receiver corresponding to said connector deployer on said first clamp.

12. The tool of claim 2, wherein each clamp comprises a first arm and a second arm moveable between an open position and a closed position.

13. The tool of claim 12, further comprising a clamping lever movably connected to at least one said clamp, wherein motion of said clamping lever to a predetermined position locks said first arm and said second arm into said closed position.

14. The tool of claim 2, wherein each clamp comprises a passage defined therein;

further comprising a finger moveable between said clamps through said passages.

15. The tool of claim 2, wherein each said clamp further comprises at least one tissue knife configured for cutting at least one flap.

16. The tool of claim 1, wherein at least one said connector is a staple.