Anastomotic device

• US 8,262,680 B2
• Filed: 03/10/2008
• Issued: 09/11/2012
• Est. Priority Date: 03/10/2008
• Status: Active Grant

• Current Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Swain, Christopher P., Jamidar, Priya
• Primary Examiner(s): McDermott, Corrine M
• Assistant Examiner(s): SCHERBEL, TODD
• Application Number:
  US12/045,318
• Publication Number:
  US 20090227828A1
• Time in Patent Office: 1,646 Days
• Field of Search: 606/139, 606/151, 606153-158, 606215-216, 623/1.23, 128/898
• US Class Current: 606/151
• CPC Class Codes: A61B 17/1114 of the digestive tract, e.g. bowels or oesophagus
• CPC Class Codes: A61B 2017/00876 magnetic
• CPC Class Codes: A61B 2017/1117 adapted for discharge after necrotisation, e.g. by evacuation, expulsion or excretion
• CPC Class Codes: A61N 2/06 using magnetic fields produced by permanent magnets A61N2/12 takes precedence

Abstract

An apparatus and system for forming a compression anastomosis. The apparatus includes an anastomotic device with an anastomotic portion including a first end and a second end. The anastomotic portion is formed of a ferrous, magnetic, or paramagnetic material. At least one flexible portion protrudes from the first end of the anastomotic portion. The at least one flexible portion includes an articulation node located at a predetermined distance from the first end of the anastomotic portion. The articulation node enables the at least one flexible portion to move relative to the anastomotic portion. The system further includes a magnet having a first end and a second end. The magnet is adapted to magnetically couple to the anastomotic portion of the anastomotic device and to compress tissue between the magnet and the anastomotic device. The compressive force on the tissue is sufficient to create a compression anastomosis through the tissue.

Claims

1. An apparatus for forming an anastomosis by compressing tissue between a magnet and a surface of an anastomotic portion wherein the apparatus is configurable between an extended state to form the anastomosis and a collapsed state to pass through the anastomosis, the apparatus comprising:

an anastomotic portion extending along a longitudinal axis, the anastomotic portion comprising a first end and a second end and a surface therebetween to contact one side of the tissue and to magnetically couple to a magnet on another side of the tissue, wherein the magnet and the surface of the anastomotic portion are positionable to compress the tissue therebetween with sufficient force to create an anastomosis through the tissue; and

at least one flexible portion protruding from the first end of the anastomotic portion along the longitudinal axis, the at least one flexible portion comprising a first articulation node located between the first end of the anastomotic portion and the at least one flexible portion, wherein the at least one flexible portion is bendable at the articulation node from an extended state extending along the longitudinal axis to a collapsed state relative to the longitudinal axis;

wherein the articulation node enables the at least one flexible portion to move relative to the anastomotic portion, and wherein when the at least one flexible portion is in the extended state the anastomosis is formed by compressing the tissue between the surface of the anastomotic portion and the magnet and when the at least one flexible portion is in the collapsed state the magnet, the anastomotic portion, and the at least one flexible portion have a configuration suitable for passing through the anastomosis formed in the tissue.

2. The apparatus of claim 1, wherein the anastomotic portion is formed of any one of a ferrous, magnetic, and paramagnetic material.

3. The apparatus of claim 2, wherein the anastomotic portion is formed of any one of quaternary Iron, Neodymium, Iron, Boron, and Samarium comprises.

4. The apparatus of claim 2, wherein the anastomotic portion is formed of any one of quaternary Iron, Neodymium, Iron, Boron, and Samarium particles incorporated in a rubber or plastic material.

5. The apparatus of claim 1, wherein the anastomotic portion comprises a lumen extending through a longitudinal portion thereof.

6. The apparatus of claim 5, wherein the at least one flexible portion comprises a lumen extending through a longitudinal portion thereof, and wherein the anastomotic portion and the at least one flexible portion are in fluid communication by way of the lumen.

7. The apparatus of claim 1, wherein the anastomotic portion and the at least one flexible portion comprise a longitudinal tubular structure suitable for positioning within a hollow viscus and draining fluid therefrom.

8. The apparatus of claim 1, wherein the anastomotic portion and the at least one flexible portion are formed of solid materials.

9. The apparatus of claim 1, wherein the at least one flexible portion is formed of a polymeric material.

10. The apparatus of claim 1, wherein the at least one flexible portion comprises a tapered portion.

11. The apparatus of claim 1, comprising

a second flexible portion protruding from the second end of the anastomotic portion along the longitudinal axis, the second flexible portion comprising a second articulation node located between the second end of anastomotic portion and the second flexible portion, wherein the second articulation node enables the second flexible portion to move relative to the anastomotic portion, and wherein when the second flexible portion is in the extended state the anastomosis is formed by compressing the tissue between the surface of the anastomotic portion and the magnet and when the second flexible portion is in the collapsed state the magnet, the anastomotic portion, and the at least one flexible portion and the second flexible portion have a configuration suitable for passing through the anastomosis formed in the tissue.

12. The apparatus of claim 11, wherein the second articulation node comprises a circumferential groove.

13. The apparatus of claim 1, wherein the first articulation node comprises a circumferential groove.

14. A system for forming an anastomosis by compressing tissue between a magnet and a surface of an anastomotic portion of an anastomotic device wherein the anastomotic device is configurable between an extended state to form the anastomosis and a collapsed state to pass through the anastomosis, the system comprising:

an anastomotic device comprising an anastomotic portion extending along a longitudinal axis, the anastomotic portion comprising

a first end and a second end and a surface therebetween to contact one side of the tissue and to magnetically couple to a magnet on another side of the tissue; and

at least one flexible portion protruding from the first end of the anastomotic portion along the longitudinal axis, the at least one flexible portion comprising an articulation node located between the first end of the anastomotic portion and the at least one flexible portion, wherein the at least one flexible portion is bendable at the articulation node from an extended state extending along the longitudinal axis to a collapsed state relative to the longitudinal axis, wherein the articulation node enables the at least one flexible portion to move relative to the anastomotic portion; and

a magnet having a first end and a second end, wherein the magnet and the surface of the anastomotic portion are positionable to compress the tissue therebetween with sufficient force to create an anastomosis through the tissue; and

wherein when the at least one flexible portion is in the extended state the anastomosis is formed by compressing the tissue between the surface of the anastomotic portion and the magnet and when the at least one flexible portion is in the collapsed state the magnet, the anastomotic portion, and the at least one flexible portion have a configuration suitable for passing through the anastomosis formed in the tissue.

15. The system of claim 14, wherein the at least one flexible portion is adapted to move relative to the anastomotic portion when the magnet magnetically couples the anastomotic portion and the anastomosis is formed.

16. The system of claim 14, wherein the magnet comprises a central lumen configured to slideably receive a pusher.

17. The system of claim 14, wherein the magnet comprises radii formed at the first and second ends.

18. The system of claim 14, wherein the magnet comprises a coating.

19. The system of claim 18, wherein the coating comprises Chromium.

20. The system of claim 14, comprising:

a second flexible portion protruding from the second end of the anastomotic portion along the longitudinal axis, the second flexible portion comprising a second articulation node located between the second end of anastomotic portion and the second flexible portion, wherein the second articulation node enables the second flexible portion to move relative to the anastomotic portion, and wherein in the extended state the anastomosis is formed by compressing the tissue between the surface of the anastomotic portion and the magnet and in the collapsed state the magnet, the anastomotic portion, and the at least one flexible portion and the second flexible portion have a configuration suitable for passing through the anastomosis formed in the tissue.

21. The system of claim 20, wherein the second articulation node comprises a circumferential groove.

22. The system of claim 14, wherein the first articulation node comprises a circumferential groove.

23. The system of claim 14, wherein the anastomotic portion is formed of a ferrous, magnetic, or paramagnetic material.