Device and method for anastomosis
A device for anastomosis of a tubular structure comprises first and second hollow members having a rigid part and an elastic part, and a connection member for interlocking the first and second members. The elastic parts are essentially circular rings, and are made of a polymeric, a biocompatible and/or biodegradable material. The rigid parts have an outer surface that is partly semi-circular in cross section, wherein the diameter at a non-connecting end is larger than or equal to the diameter at a connecting end, which ends in an edge. The first and second members are connected to each other so that a distance is formed between the elastic parts. A cavity is formed between the rigid parts and the connection member and the tubular structure, when arranged in the device.
1. A device for anastomosis of a tubular structure, said device comprising:
members of a generally hollow open configuration that include a first member and a second member, wherein the first and second member each comprises a rigid part and an elastic part wherein the first member is operable to retain a first severed end of a tubular between the rigid and elastic part, and the second member is operable to retain a second severed end of the tubular between the rigid and elastic part; and
a connection member structured and operable to connect the first member to the second member such that anastomosis will occur between the first and second severed ends of the tubular structure, wherein the rigid part of the first member comprises at least two holes arranged around a periphery of the rigid part of the first member, each hole engageable with a first end of a catheter such that the first end of the catheter is opening into a cavity formed between the rigid parts when the first member is connected to the second member and a second end of the catheter passes through a tubular structure and exits through a rectum of a patient when the tubular structure is connected to the first member.
2. The device according to claim 1 , wherein the connection member is integral with the rigid part of the first member.
3. The device according to claim 1 , wherein the connection member is provided with longitudinal slits forming tongues there between.
4. The device according to claim 3 , wherein at least one tongue is provided with an outward protrusion.
5. The device according to claim 4 , wherein the elastic parts are made of a polymeric material.
6. The device according to claim 5 , wherein the polymeric material comprises an elastomer.
7. The device according to claim 4 , wherein the elastic parts are made of a biocompatible material.
8. The device according to claim 4 , wherein the elastic parts are made of a biodegradable material.
9. The device according to claim 1 , wherein the elastic parts are essentially circular rings.
10. The device according claim 1 , wherein the rigid parts have an outer surface that is partly semi-circular in cross section, wherein a diameter at a non-connecting end is larger than or equal to the diameter at a connecting end.
11. The device according to claim 10 , wherein the diameter at the connecting end of the rigid parts ends in an edge.
12. The device according to claim 1 , wherein the first and second members are connectable to each other so that a distance is formed between the elastic parts.
13. The device according to claim 1 , wherein the cavity is formed between the rigid parts and the connection member and the tubular structure, when the tubular structure is arranged in the device.
14. The device according to claim 1 , wherein the connection member has at least one circumferential groove around the outer periphery, and the second rigid part has a protrusion arranged around the inner periphery.