Surgical stapling instrument and method thereof
First Claim
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1. A method of attaching a graft to a body structure comprising the steps of:
- providing a stapler having an anvil, a rod, a staple pusher and a shoulder, the anvil being attached to the rod and the staple pusher being configured to drive staples, the shoulder being positioned opposite the anvil;
positioning the rod in a graft;
everting the end of the graft around the shoulder;
inserting the anvil through an opening in a body structure to which the graft is to be stapled;
compressing the graft and the body structure between the anvil and the shoulder; and
moving the staple pusher so that the staple pusher engages the staples and drives the staples against the anvil thereby stapling the graft to the body structure.
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Abstract
A stapler for stapling a tubular structure to another structure. The stapler has an anvil which is expandable from a collapsed position to an expanded position. The stapler has a recess which receives at least a portion of the tubular structure and a shoulder which receives an everted end of the tubular structure. A first actuator moves the anvil relative to the shoulder for compressing the structures which are to be stapled together. A second actuator is used for driving the staples through the structures to be stapled together.
57 Citations
18 Claims
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1. A method of attaching a graft to a body structure comprising the steps of:
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providing a stapler having an anvil, a rod, a staple pusher and a shoulder, the anvil being attached to the rod and the staple pusher being configured to drive staples, the shoulder being positioned opposite the anvil;
positioning the rod in a graft;
everting the end of the graft around the shoulder;
inserting the anvil through an opening in a body structure to which the graft is to be stapled;
compressing the graft and the body structure between the anvil and the shoulder; and
moving the staple pusher so that the staple pusher engages the staples and drives the staples against the anvil thereby stapling the graft to the body structure. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of attaching a graft to a body structure, comprising the steps of:
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providing a stapler having a rod, a plurality of anvil segments, a movable staple pusher and a shoulder, each of the plurality of anvil segments having a recess adapted to deform a staple, the staple pusher being configured to drive a plurality of staples toward the recesses of the plurality of anvil segments, the shoulder being positioned opposite the anvil, the plurality of anvil segments being mounted to the rod and being movable between an expanded position and a collapsed position;
positioning the rod in a graft;
everting an end of the graft around the shoulder;
inserting the plurality of anvil segments through an opening in a body structure to which the graft is to be stapled, the plurality of anvil segments being inserted into the body structure in the collapsed position;
compressing the graft and the body structure between the plurality of anvil segments and the shoulder;
expanding the plurality of anvil segments to the expanded shape;
moving the staple pusher so that the staple pusher engages the staples and drives the staples against the plurality of anvil segments;
collapsing the plurality of anvil segments from the expanded shape to the collapsed shape after the moving step; and
removing the rod from the graft when after the collapsing step. - View Dependent Claims (8, 9)
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10. A stapler for stapling a graft to a body structure, comprising:
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a handle;
a housing coupled to the handle, the housing having a shoulder;
a staple pusher movably coupled to the housing;
a rod coupled to the handle and extending at least partially through the housing;
an anvil connected to the rod;
a first actuator configured to move the anvil relative to the shoulder of the housing for compressing tissue layers positioned therebetween;
a second actuator coupled to the handle, the second actuator being configured to drive the staple pusher for driving staples toward the anvil. - View Dependent Claims (11, 12, 13, 14)
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15. A staple for use in securing a body structure to another body structure, the staple comprising:
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a first leg having a first sharp end;
a second leg having a second sharp end;
a tissue compression portion extending between the first and second legs;
a top coupled to the tissue compression portion, a first distance between the top and the tissue compression portion being at least 15% of a second distance between the top and the first and second sharp ends. - View Dependent Claims (16, 17, 18)
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Specification