Linear surgical stapling instrument
First Claim
1. A linear surgical stapling instrument, comprising:
- (a) a magazine for holding a plurality of undeformed surgical staples;
(b) an elongated upper jaw carrying said magazine, said upper jaw comprising an elongated top beam having a U-shaped cross-section;
(c) an elongated lower jaw generally parallel to the upper jaw formed as a channel having an elongated bottom beam with a generally U-shaped cross-section defined by a back portion having an outer surface and two opposing leg portions, the outer surface of said back portion defining an anvil having at least one staple deforming pocket formed therein, said upper and lower jaws being configured to mate with each other and grip therebetween tissue to be sutured, with the top and bottom beams fitting together in parallel relationship with said anvil and said magazine in confronting relation;
(d) means mounted in said upper jaw for driving staples held in said magazine toward said anvil; and
(e) a bottom housing having a generally U-shaped cross-section which partially encloses the bottom beam and which forms a hand grip, wherein the bottom beam includes a nose portion which fits into a complementary receiving portion in the bottom housing.
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Accused Products
Abstract
A linear surgical stapling instrument includes a magazine for holding a plurality of undeformed surgical staples, and an upper jaw carrying the magazine and having opposed distal and proximal ends. An anvil is formed with staple-deforming pockets, and a lower jaw carries the anvil. In particular the lower jaw is formed as a channel defined by an inverted U-shaped cross section. The anvil is formed on the outer surface of the back of the U-shaped cross section with the staple deforming pockets stamped or punched therein. Accordingly, the lower jaw can be easily made of metal with known metal-forming techniques, and stamping or punching techniques. In addition, the configuration of the low jaw causes it to resist bending and twisting during the staple deforming operation.
509 Citations
15 Claims
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1. A linear surgical stapling instrument, comprising:
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(a) a magazine for holding a plurality of undeformed surgical staples; (b) an elongated upper jaw carrying said magazine, said upper jaw comprising an elongated top beam having a U-shaped cross-section; (c) an elongated lower jaw generally parallel to the upper jaw formed as a channel having an elongated bottom beam with a generally U-shaped cross-section defined by a back portion having an outer surface and two opposing leg portions, the outer surface of said back portion defining an anvil having at least one staple deforming pocket formed therein, said upper and lower jaws being configured to mate with each other and grip therebetween tissue to be sutured, with the top and bottom beams fitting together in parallel relationship with said anvil and said magazine in confronting relation; (d) means mounted in said upper jaw for driving staples held in said magazine toward said anvil; and (e) a bottom housing having a generally U-shaped cross-section which partially encloses the bottom beam and which forms a hand grip, wherein the bottom beam includes a nose portion which fits into a complementary receiving portion in the bottom housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification