Anastomosis instrument and method for performing same
First Claim
Patent Images
1. A surgical instrument for anastomosis of first and second blood vessels, comprising:
- a housing having distal and proximal ends and a horizontal axis and an actuator disposed therebetween, the actuator including;
a handle which is moveable from a first position relative to the housing to at least one subsequent position in closer proximity to the housing; and
a link assembly mechanically engaged with the handle and being moveable through a firing stroke in response to the movement of the handle from the first position to the at least one subsequent position, the link assembly includes a three bar link assembly at least three links linked together;
a disposable loading unit releasably attached to the distal end of the housing in mechanical cooperation with the actuator, the disposable loading unit including a plurality of surgical fasteners which are deformed and released upon movement of the actuator through the firing stroke,wherein the firing stroke of the handle and the link assembly includes;
a first stage wherein;
the links are each respectively disposed at a first angle relative to the horizontal axis disposed through the housing;
the handle is in the first position relative to the housing, andthe plurality of surgical fasteners are maintained within the disposable loading unit;
an intermediate stage wherein;
the links move through a range of motion to a fully-extended and substantially parallel position relative to the horizontal axis,the handle moves to a position in closer proximity to the housing, andthe plurality of surgical fasteners deform within the disposable loading unit; and
a third, post-firing stage wherein;
the links each move through a range of motion to a respective angle relative to the horizontal axis,the handle moves to a position in closest proximity to the housing, andthe plurality of surgical fasteners release from engagement within the disposable loading unit.
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 and an actuator disposed therebetween. The actuator includes a handle and a link assembly, the link assembly being movable through a firing stroke in response to movement of the handle. The instrument also includes a disposable loading unit releasably attached to the distal end of the housing in mechanical cooperation with the actuator. The disposable loading unit supports a plurality of surgical fasteners, which deform upon movement of the actuator and the link assembly through the firing stroke.
-
Citations
12 Claims
-
1. A surgical instrument for anastomosis of first and second blood vessels, comprising:
-
a housing having distal and proximal ends and a horizontal axis and an actuator disposed therebetween, the actuator including; a handle which is moveable from a first position relative to the housing to at least one subsequent position in closer proximity to the housing; and a link assembly mechanically engaged with the handle and being moveable through a firing stroke in response to the movement of the handle from the first position to the at least one subsequent position, the link assembly includes a three bar link assembly at least three links linked together; a disposable loading unit releasably attached to the distal end of the housing in mechanical cooperation with the actuator, the disposable loading unit including a plurality of surgical fasteners which are deformed and released upon movement of the actuator through the firing stroke, wherein the firing stroke of the handle and the link assembly includes; a first stage wherein; the links are each respectively disposed at a first angle relative to the horizontal axis disposed through the housing; the handle is in the first position relative to the housing, and the plurality of surgical fasteners are maintained within the disposable loading unit; an intermediate stage wherein; the links move through a range of motion to a fully-extended and substantially parallel position relative to the horizontal axis, the handle moves to a position in closer proximity to the housing, and the plurality of surgical fasteners deform within the disposable loading unit; and a third, post-firing stage wherein; the links each move through a range of motion to a respective angle relative to the horizontal axis, the handle moves to a position in closest proximity to the housing, and the plurality of surgical fasteners release from engagement within the disposable loading unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A surgical instrument for deploying surgical fasteners, comprising:
-
a housing having distal and proximal ends and a horizontal axis defined therethrough and between the distal and proximal ends; a handle which is moveable in a stroke from a first position relative to the housing to at least one subsequent position in closer proximity to the housing; a link assembly mechanically engaged with the handle and being moveable through the stroke in response to the movement of the handle from the first position to at least one subsequent position, the link assembly including at least three links linked together; a loading unit releasably attached at the distal end of the housing and including a plurality of surgical fasteners which are deformed and released upon movement of the actuator through the stroke, wherein the stroke of the handle and the link assembly includes a first stage wherein the links each are positioned at a respective angle relative to the horizontal axis and, a second stage wherein the links move to a fully-extended and substantially parallel position relative to the horizontal axis, and a third stage wherein the links each are positioned at a respective angle relative to the horizontal axis and the handle is in a position in closest proximity to the housing. - View Dependent Claims (10, 11, 12)
-
Specification