Patent ID: 7691113
Filing Date: 2010-04-06
Classification: A61B

Abstract:
1. A surgical instrument operable to implant an anastomotic ring device, the instrument comprising: (a) a handle; (b) a ring deployment mechanism configured to receive and deploy an anastomotic ring, wherein the ring deployment mechanism comprises a plurality of fingers, a distal ring member, a proximal ring member, and a mid-ring, wherein the plurality of fingers comprises a first set of fingers and a second set of fingers, wherein each of the plurality of fingers comprises a distal end, a proximal end, and a hinge positioned longitudinally between the distal end and the proximal end of each finger, wherein the first set of fingers and the second set of fingers are positioned about a common axis, wherein each of the first set of fingers terminate at the distal ring member at the distal end and terminate at the mid-ring at the proximal end, wherein each of the second set of fingers terminate at the proximal ring member at the proximal end and terminate at the mid-ring at the distal end, wherein each of the plurality of fingers are operable to articulate outwardly at the hinge from an unactuated position toward an actuated position; wherein the first set of fingers is operable to achieve the actuated position while the second set of fingers remains in the unactuated position, wherein the second set of fingers is operable to achieve the actuated position while the first set of fingers remains in the unactuated position; and (c) an elongate shaft connecting the handle to the ring deployment mechanism, wherein the elongate shaft is configured to transfer a torsional actuating force from the handle to the ring deployment mechanism, wherein the elongate shaft comprises a longitudinal axis; wherein each of the plurality of fingers comprises a slot, wherein each slot comprises an open end longitudinally opposed to a closed end, the open end of each slot is oriented in a longitudinal direction substantially parallel to the longitudinal axis of the elongate shaft when the ring deployment mechanism is in an unactuated position, wherein each of the plurality of fingers further comprises an inwardly directed tip adjacent to the open end of each slot.