Surgical fastener applying apparatus
First Claim
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1. A surgical stapler, comprising:
- a tubular body portion;
a cartridge assembly disposed at a distal end of the body portion for expelling annular arrays of staples, each of the staples of the annular arrays of staples having legs and a backspan that is curved or bent within a plane that is perpendicular to a plane defined by the legs, a length of each of the staples in an inner annular array of staples being shorter than a length of each of the staples in an outer annular array of staples, wherein at least one of the staples in the inner or outer annular array of staples has a bent or curved portion disposed between adjacent legs of adjacent staples in the other of the inner or outer annular array of staples; and
an anvil member disposed at the distal end of the tubular body portion and positioned opposite the cartridge assembly to crimp the staples in tissue upon expulsion of the staples from the cartridge assembly, the anvil member having a corresponding annular array of staple forming buckets.
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Abstract
A surgical stapler is provided. The stapler includes a tubular body portion. A cartridge assembly is disposed at a distal end of the body portion for expelling an annular array of staples. Each of the staples of the annular array of staples has a generally bent backspan. An anvil member disposed at the distal end of the tubular body portion is positioned opposite the cartridge assembly to clinch the staples in tissue upon expulsion of the staples from the cartridge assembly. The anvil member has a corresponding annular array of staple forming buckets. Each of the buckets is configured to accommodate the generally bent configuration of the staples to facilitate formation thereof.
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Citations
13 Claims
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1. A surgical stapler, comprising:
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a tubular body portion; a cartridge assembly disposed at a distal end of the body portion for expelling annular arrays of staples, each of the staples of the annular arrays of staples having legs and a backspan that is curved or bent within a plane that is perpendicular to a plane defined by the legs, a length of each of the staples in an inner annular array of staples being shorter than a length of each of the staples in an outer annular array of staples, wherein at least one of the staples in the inner or outer annular array of staples has a bent or curved portion disposed between adjacent legs of adjacent staples in the other of the inner or outer annular array of staples; and an anvil member disposed at the distal end of the tubular body portion and positioned opposite the cartridge assembly to crimp the staples in tissue upon expulsion of the staples from the cartridge assembly, the anvil member having a corresponding annular array of staple forming buckets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A surgical stapler, comprising:
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a tubular body portion; a cartridge assembly disposed at a distal end of the body portion for expelling annular arrays of staples, each of the staples of the annular arrays of staples having legs and a generally bent or curved backspan, a length of each of the staples in an inner annular array of staples being shorter than a length of each of the staples in an outer annular array of staples, wherein at least one of the staples in the inner or outer annular array of staples has a bent or curved portion disposed between adjacent legs of adjacent staples in the other of the inner or outer annular array of staples; and an anvil member disposed at the distal end of the tubular body portion and positioned opposite the cartridge assembly to crimp the staples in tissue upon expulsion of the staples from the cartridge assembly, the anvil member having a corresponding annular array of staple forming buckets, wherein the staple forming buckets are configured to crimp the staples so that the legs extend beyond the backspan. - View Dependent Claims (13)
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Specification