Anastomotic coupling device

Claim 2

A three-piece anastomotic coupling device for end-to-end anastomosis of tubular members, said device comprising: two cuffs and a sleeve, each of said cuffs comprising a cylinder having an axial bore therethrough, said cuff being sized to fit within the lunen of a tubular member with the end of said tubular member inverted over one end of said cuff, said sleeve comprising a cylinder having an axial bore therethrough, said cylinder being sized to fit inside the axial bores of said cuffs with the inverted tubular members in abutting contact outside the cylinder and means for locking said cuffs and sleeve to maintain the inverted ends of the tubular members in contact.

Claim 3

A device according to Claim 1 wherein the interlocking means comprises a shoulder on each cuff engaging'ledges on opposite ends of the sleeve.

Claim 4

A device according to claim 1 or claim 2 wherein the sleeve comprises a cylinder having a central portion and a plurality of legs extending from each end of said central portion.

Claim 5

A device accordng to Claim 3 wherein at least two of the legs at each end of the central portion of the sleeve contain undercut ledges, said ledges engaging the ends of the cuffs opposite the ends on which the tubular member is inverted.

Claim 10

A device according to Claim 6 wherein said material is absorbable in a biological system.

Claim 11

A three-piece anastomotic coupling device for end-to-end anastomosis of tubular members, said device comprising: two cuffs and a sleeve, each of said cuffs comprising a cylinder having an axial bore therethrough, said cuff being sized to fit within the lumen of the tubular member, the inner and outer surfaces of the cuffs being smooth, one end of each cuff being tapered towards its inner surface to form a shoulder at said end, said sleeve comprising a generally cylindrical center portion having an axial bore therethrough, a plurality of legs extending axially from each side of said central portion of said sleeve terminating in a radially outward extending ledge adapted to engage the shoulder of a cuff, said sleeve being sized to fit inside the axial bores of said cuffs, whereby when a tubular member to be joined is inverted over the end of one cuff opposite the tapered end and the other tubular member to be joined is inverted over the end of the other cuff opposite its tapered end and that sleeve positioned within the cuffs with the tubular members abutting one another and with the radially outwardly extending ledges on opposite legs of the sleeve engaging the shoulders on said cuffs, the tubular members are joined.

Claim 12

A three-piece anastomotic coupling device for end-to-end anastomosis of tubular members, said device comprising: two cuffs and a sleeve, each of said cuffs comprising a cylinder having an axial bore therethrough, said cuff being sized to fit within the lumen of the tubular member, the inner and outer surfaces of the cuffs being smooth, one end of each cuff being tapered towards its inner surface to form a shoulder at said end, said sleeve comprising a generally cylindrical center portion having an axial bore therethrough, a plurality of legs extending axially from each side of said central portion of said sleeve terminating in a radially outward extending ledge adapted to engage the shoulder of a cuff, said sleeve being sized to fit inside the axial bores of said cuffs, whereby when a tubular member to be joined is inverted over the end of one cuff opposite the tapered end and the other tubular member to be joined is inverted over the end of the other cuff opposite its tapered end and that sleeve positioned within the cuffs with the tubular members abutting one another and with the radially outwardly extending ledges on opposite legs of the sleeve engaging the shoulders on said cuffs, the tubular members are joined.