ANASTOMOTIC COUPLER

1 . A cartridge for an anastomotic coupler, the cartridge comprising:

a frame extending along a longitudinal axis;

one or more fasteners extending from the frame at an angle from the longitudinal axis, the one or more fasteners operable to at least partially puncture a wall of a tubular structure; and

one or more frictional elements extending from the frame at an angle from the longitudinal axis, the one or more frictional elements operable to abut against the wall of the tubular structure without puncturing the wall.

2 . The cartridge of claim 1 , wherein the one or more fasteners each have an end that is linear, curved, bent, and/or hooked.

3 . The cartridge of claim 1 , wherein the frame includes a body that has a diameter substantially the same as a diameter of a lumen of the tubular structure so that a body outer radial surface abuts against the wall of the tubular structure to maintain the shape of the tubular structure.

4 . The cartridge of claim 3 , wherein the body forms a lumen to permit fluid to flow across the frame.

5 . The cartridge of claim 3 , wherein at least one of the one or more frictional elements extends from the body.

6 . The cartridge of claim 3 , wherein the frame includes one or more columns that extend from the body along the longitudinal axis.

7 . The cartridge of claim 6 , wherein at least one of the one or more fasteners extends from the one or more columns.

8 . The cartridge of claim 1 , wherein the angle that the one or more fasteners extend from the longitudinal axis is between about 1 degree and about 90 degrees.

9 . The cartridge of claim 1 , wherein the angle that the one or more fasteners extend from the longitudinal axis is between about 65 degrees and about 80 degrees.

10 . The cartridge of claim 1 , wherein the angle that the one or more frictional elements extend from the longitudinal axis is between about 1 degree and about 90 degrees.

11 . An anastomotic coupler comprising:

a ring operable to receive a tubular structure extending along a longitudinal axis; and

a cartridge operable to be received in the tubular structure, the cartridge including:

a frame extending along a longitudinal axis;

one or more fasteners extending from the frame at an angle from the longitudinal axis, the one or more fasteners operable to at least partially puncture a wall of a tubular structure; and

one or more frictional elements extending from the frame at an angle from the longitudinal axis, the one or more frictional elements operable to abut against the wall of the tubular structure without puncturing the wall,

wherein the cartridge assists in coupling the ring with the tubular structure as the one or more fasteners and the one or more frictional elements provide radial compression of the tubular structure against the ring.

12 . The anastomotic coupler of claim 11 , wherein the one or more fasteners each have an end that is linear, curved, bent, and/or hooked.

13 . The anastomotic coupler of claim 11 , wherein the frame includes a body that has a diameter substantially the same as a diameter of a lumen of the tubular structure so that a body outer radial surface abuts against the wall of the tubular structure to maintain the shape of the tubular structure.

14 . The anastomotic coupler of claim 13 , wherein the body forms a lumen to permit fluid to flow across the frame.

15 . The anastomotic coupler of claim 13 , wherein at least one of the one or more frictional elements extends from the body.

16 . The anastomotic coupler of claim 13 , wherein the frame includes one or more columns that extend from the body along the longitudinal axis.

17 . The anastomotic coupler of claim 16 , wherein at least one of the one or more fasteners extends from the one or more columns.

18 . The anastomotic coupler of claim 11 , wherein the angle that the one or more fasteners extend from the longitudinal axis is between about 1 degree and about 90 degrees.

19 . The anastomotic coupler of claim 11 , wherein the angle that the one or more fasteners extend from the longitudinal axis is between about 65 degrees and about 80 degrees.

20 . The anastomotic coupler of claim 11 , wherein the angle that the one or more frictional elements extend from the longitudinal axis is between about 1 degree and about 90 degrees.