STAPLE CARTRIDGES WITH ATRAUMATIC FEATURES
First Claim
1. A circular staple cartridge for use with a circular surgical stapling instrument, wherein the circular staple cartridge comprises:
- an outer tissue-contacting surface comprising at least one first staple cavity, wherein the at least one first staple cavity is configured to receive at least one first staple including a first staple leg with a first tip protruding above the outer tissue-contacting surface when the first staple is in an unfired position;
an inner tissue-contacting surface comprising at least one second staple cavity; and
at least one pocket extender protruding from the outer tissue-contacting surface, wherein the at least one pocket extender is defined about a perimeter of the at least one first staple cavity, and wherein the pocket extender comprises a jacket configured to conceal the first tip when the first staple is in the unfired position, and wherein the jacket comprises;
an end;
an inner side wall extending from the end, wherein the inner side wall comprises a first height from the outer tissue-contacting surface; and
an outer side wall extending from the end, wherein the outer side wall comprises a second height from the outer tissue-contacting surface, and wherein the first height is greater than the second height.
3 Assignments
0 Petitions
Accused Products
Abstract
A staple cartridge comprises an outer tissue-contacting surface comprising at least one first staple cavity. The at least one first staple cavity is configured to receive at least one first staple that includes a first staple leg with a first tip protruding beyond the outer tissue-contacting surface when the at least one first staple is in an unfired position. The staple cartridge includes an inner tissue-contacting surface comprising at least one second staple cavity. At least one pocket extender protrudes from the outer tissue-contacting surface, wherein the at least one pocket extender is configured to conceal the first tip when the at least one first staple is in the unfired position. The inner tissue-contacting surface cooperates with the outer tissue-contacting surface and the at least one pocket extender to define a contoured frame configured to reduce friction against tissue as the staple cartridge is moved relative to tissue.
423 Citations
20 Claims
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1. A circular staple cartridge for use with a circular surgical stapling instrument, wherein the circular staple cartridge comprises:
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an outer tissue-contacting surface comprising at least one first staple cavity, wherein the at least one first staple cavity is configured to receive at least one first staple including a first staple leg with a first tip protruding above the outer tissue-contacting surface when the first staple is in an unfired position; an inner tissue-contacting surface comprising at least one second staple cavity; and at least one pocket extender protruding from the outer tissue-contacting surface, wherein the at least one pocket extender is defined about a perimeter of the at least one first staple cavity, and wherein the pocket extender comprises a jacket configured to conceal the first tip when the first staple is in the unfired position, and wherein the jacket comprises; an end; an inner side wall extending from the end, wherein the inner side wall comprises a first height from the outer tissue-contacting surface; and an outer side wall extending from the end, wherein the outer side wall comprises a second height from the outer tissue-contacting surface, and wherein the first height is greater than the second height. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A staple cartridge for use with a surgical stapling instrument, wherein the staple cartridge comprises:
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an outer tissue-contacting surface comprising at least one first staple cavity, wherein the at least one first staple cavity is configured to receive at least one first staple that includes a first staple leg with a first tip protruding beyond the outer tissue-contacting surface when the at least one first staple is in an unfired position; an inner tissue-contacting surface comprising at least one second staple cavity; and at least one pocket extender protruding from the outer tissue-contacting surface, wherein the at least one pocket extender is configured to conceal the first tip when the at least one first staple is in the unfired position, and wherein the inner tissue-contacting surface cooperates with the outer tissue-contacting surface and the at least one pocket extender to define a contoured frame configured to reduce friction against tissue as the staple cartridge is moved relative to the tissue. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A circular surgical stapling instrument, comprising:
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an anvil; and a circular staple cartridge, wherein at least one of the anvil and the circular staple cartridge is moveable relative to the other one of the anvil and the circular staple cartridge to capture tissue therebetween, and wherein the circular staple cartridge comprises; a stepped cartridge deck, comprising; a first annular tissue-contacting surface comprising at least one first staple cavity, wherein the at least one first staple cavity is configured to receive at least one first staple including a first staple leg with a first tip protruding beyond the first annular tissue-contacting surface when the at least one first staple is in an unfired position; a second annular tissue-contacting surface stepped up from the first annular tissue-contacting surface, wherein the first annular tissue-contacting surface at least partially surrounds the second annular tissue-contacting surface, and wherein the second annular tissue-contacting surface comprises at least one second staple cavity; and at least one pocket extender protruding from the first annular tissue-contacting surface, wherein the at least one pocket extender is configured to conceal the first tip when the at least one first staple is in the unfired position, and wherein the second annular tissue-contacting surface cooperates with the first annular tissue-contacting surface and the at least one pocket extender to define a sloped frame configured to reduce snagging against tissue as the staple cartridge is moved relative to the tissue. - View Dependent Claims (17, 18, 19, 20)
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Specification