Abstract: A surgical instrument suitable for use in transcholedochal papillotomy for incision of duodenal papilla without duodenal incision is disclosed, comprising a fixed handle; a ring movably attached to the fixed handle; a transmission catheter suitable for insertion through a choledochus without duodenal incision, attached at one end to the fixed handle; a guide positioned within the transmission catheter and actuated by movement of a ring; a fixed blade attached at a second end of the transmission catheter, the fixed blade having a blunt distal end; a movable blade distally hinged to the fixed blade and closing thereon proximally and completely in a direction opposite to that of insertion, the movable blade being actuated by a guide; and a spring for displacing the control means back to an original position after movement therefrom, the original position corresponding to a closed position of the movable blade relative to the fixed blade.

Abstract: A surgical instrument for performing mechanical suturing and biopsies comprises a fixed leg having an upper body defining a channel and a lower head connected to the body and incorporating a suturing mechanism which includes a pusher for pushing a V-shaped arrangement of mechanical sutures into tissue to be sutured. A movable leg is slidably mounted in the channel of the fixed leg and includes a lower anvil which cooperates with the head of the fixed body to close sutures which are discharged from the head. A threaded engagement is established in the fixed leg body for threadably engaging an upper part of the movable leg for moving the movable leg with respect to the fixed leg. The head of the fixed leg comprises a frame which houses a pusher for the suturing mechanism, the pusher having a shaft which is movable parallel to the movable leg and which is connected to a release mechanism for lower and raising the pusher. A V-shaped blade is movable with the pusher for performing a biopsy.