Patent ID: 7534248

Claim:
An anastomosing device comprising: an anchoring member; a suture material, said anchoring member being attached to a first end of said suture material and being adapted to anchor in a biological tissue; a puncture needle; a locking member, through which a second end of said suture material is inserted and that comes into contact with the anastomosed biological tissue so as to prevent pull-out of the suture material, said anchoring member and said locking member being housed inside said puncture needle, wherein, once said puncture needle has passed through the biological tissues, said suture material is passed through the biological tissues as said anchoring member and said locking member are pushed out in accordance with operations from a hand held portion, thereby anastomosing said biological tissues, said locking member being disposed in the internal cavity of said puncture needle so that the surface of said locking member that is in contact with said biological tissue becomes parallel to the axial direction of said puncture needle; a first pushing member that pushes out said locking member from said puncture needle; and a second pushing member that is housed inside said first pushing member and pushes out said anchoring member from said puncture needle; wherein said locking member comprises a base and two bent pieces that are inclined with respect to said base so as to be opposite one another, said bent pieces being adapted such that the suture material that is passed between ends thereof is fastened when a force is applied so as to close the space between the opposing said ends, and the fastening of said suture material is released when a force is applied to as to widen the space between the opposing said ends, and wherein said locking member and said anchoring member are disposed substantially in line within said puncture needle such that said locking member is closer than said anchoring member relative to a piercing end of said puncture needle.