Anastomosis instrument and method for performing same
First Claim
1. A surgical instrument for anastomosis of first and second blood vessels, comprising:
- a housing having distal and proximal ends;
a loading unit having;
a fastener support member for supporting a plurality of surgical fasteners;
wherein an anvil supports the plurality of surgical fasteners in an initial position of the surgical instrument;
first and second retracting sleeves movable relative to the fastener support member from a first position wherein the distal ends of the retracting sleeves are disposed relative to the fastener support member to a second position wherein the distal ends of the retracting sleeves are disposed in closer proximity to the fastener support member;
an actuator which moves the first and second sleeves relative to the fastener support member; and
a locking mechanism which locks the actuator to the housing after the instrument is fired.
1 Assignment
0 Petitions
Accused Products
Abstract
A surgical instrument for anastomosis of first and second blood vessels includes a housing having distal and proximal ends, a handle and a disposable loading unit removably mounted to the distal end of the housing. The loading unit includes upper and lower fastener support members having a passage defined therethrough for receiving an end of the second blood vessel and configured to releasably support a plurality of surgical fasteners. The loading unit also includes a retractable anvil located at a distal end of the loading unit, the anvil being movable relative to the fastener support member in response to actuation of the handle to simultaneously deform the of surgical fasteners.
460 Citations
36 Claims
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1. A surgical instrument for anastomosis of first and second blood vessels, comprising:
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a housing having distal and proximal ends; a loading unit having; a fastener support member for supporting a plurality of surgical fasteners; wherein an anvil supports the plurality of surgical fasteners in an initial position of the surgical instrument; first and second retracting sleeves movable relative to the fastener support member from a first position wherein the distal ends of the retracting sleeves are disposed relative to the fastener support member to a second position wherein the distal ends of the retracting sleeves are disposed in closer proximity to the fastener support member; an actuator which moves the first and second sleeves relative to the fastener support member; and a locking mechanism which locks the actuator to the housing after the instrument is fired. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A surgical instrument for anastomosis of first and second blood vessels, comprising:
a housing having distal and proximal ends; a loading unit having; an anvil supporting a plurality of surgical fasteners in an initial position of the surgical instrument, the plurality of surgical fasteners being supported in an array like manner; first and second retracting sleeves disposed between an upper and lower fastener support members, the retracting sleeves being movable relative to the fastener support members from a first position wherein the distal ends of the sleeves are disposed relative to the fastener support member to a second position wherein the distal ends of the sleeves are disposed in closer proximity to the fastener support members and wherein the first sleeve includes a base and a sleeve cap, the sleeve cap being selectively pivotable relative to the base; and an actuator which moves the first and second sleeves relative to the fastener support member. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A surgical instrument for anastomosis of first and second blood vessels, comprising:
a housing having distal and proximal ends; a loading unit having; an anvil supporting a plurality of surgical fasteners in an initial position of the surgical instrument, the plurality of surgical fasteners being supported in an array like manner; first and second retracting sleeves disposed between an upper and lower fastener support members, the retracting sleeves being movable relative to the fastener support members from a first position wherein the distal ends of the sleeves are disposed relative to the fastener support member to a second position wherein the distal ends of the sleeves are disposed in closer proximity to the fastener support members and wherein the second sleeve includes upper and lower cuffs, the upper cuff being disposed between the upper fastener support and the first retracting sleeve and the lower cuff being disposed between the lower fastener support and the first retracting sleeve; and an actuator which moves the first and second sleeves relative to the fastener support member.
Specification