Patent ID: 6171321
Filing Date: 2001-01-09
Classification: A61B,A61F

Abstract:
An anastomosis fitting for connecting a free end of a graft vessel to a wall of a target vessel such that a lumen in the graft vessel is in fluid communication with a lumen in the target vessel through an opening in the wall of the target vessel, the anastomosis fitting comprising:an inner flange, said inner flange having a proximal surface and a distal surface and a central orifice of sufficient size to accommodate an external diameter of said graft vessel, said inner flange providing an atraumatic attachment for said end of said graft vessel when said end of said graft vessel is passed through said central orifice and everted over said inner flange, said inner flange being insertable through said opening in said wall of said target vessel, wherein said inner flange comprises a plurality of flange sectors and has at least two operative positions, including a collapsed position wherein said inner flange has a collapsed diameter, and an expanded position wherein said inner flange has an expanded diameter which is greater than said collapsed diameter;an outer flange, said outer flange having a proximal surface and a distal surface and a central orifice of sufficient size to accommodate the external diameter of said graft vessel, said distal surface of said outer flange being configured to contact an exterior surface of said wall of said target vessel proximate said opening; andmeans for maintaining said outer flange in a selected position with respect to said inner flange such that said everted end of said graft vessel is sealingly connected to said wall of said target vessel and said lumen of said graft vessel is in fluid communication with said lumen of said target vessel through said opening in said wall of said target vessel.