Staple buttress retention system
First Claim
1. A surgical instrument having a system for retaining buttress material, the surgical instrument comprising:
- a jaw assembly including a first jaw and a second jaw, at least one of the first jaw or the second jaw defining staple pockets for retaining staples;
a first buttress material having a central portion and a peripheral position including a peripheral perforation line separating the central portion from the peripheral portion, the peripheral portion being attached to a tissue facing surface of the first jaw, the central portion being separable from the peripheral portion after the staples are fired;
a second buttress material having a central portion and a peripheral portion including a peripheral perforation line separating the central portion from the peripheral portion, the peripheral portion being attached to a tissue facing surface of the second jaw, the central portion being separable from the peripheral portion after the staples are fired;
wherein the first buttress material and the second buttress material are preloaded on the respective first jaw and second jaw at the time of manufacture; and
a first buttress retainer having an open center portion and being attached to the first jaw, the peripheral portion of the first buttress material being retained against the tissue facing surface of the first jaw by the first buttress retainer; and
a second buttress retainer having an open center portion and being attached to the second jaw, the peripheral portion of the second buttress material being retained against the tissue facing surface of the second jaw by the second buttress retainer.
2 Assignments
0 Petitions
Accused Products
Abstract
A surgical stapling instrument is provided having systems for securing buttress material to the anvil and staple containing cartridge associated with the surgical instrument. The system includes a retainer configured to engage the anvil or the staple containing cartridge and capture the buttress material between the retainer and the anvil or staple containing cartridge. The disclose retainer engages the anvil or staple containing cartridge in snap fit or friction fit fashion. The buttress material includes a circumferential perforation line enabling the center of the buttress material to be stapled to tissue while the remainder of the buttress material remains with the anvil or staple containing cartridge.
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Citations
45 Claims
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1. A surgical instrument having a system for retaining buttress material, the surgical instrument comprising:
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a jaw assembly including a first jaw and a second jaw, at least one of the first jaw or the second jaw defining staple pockets for retaining staples; a first buttress material having a central portion and a peripheral position including a peripheral perforation line separating the central portion from the peripheral portion, the peripheral portion being attached to a tissue facing surface of the first jaw, the central portion being separable from the peripheral portion after the staples are fired; a second buttress material having a central portion and a peripheral portion including a peripheral perforation line separating the central portion from the peripheral portion, the peripheral portion being attached to a tissue facing surface of the second jaw, the central portion being separable from the peripheral portion after the staples are fired; wherein the first buttress material and the second buttress material are preloaded on the respective first jaw and second jaw at the time of manufacture; and a first buttress retainer having an open center portion and being attached to the first jaw, the peripheral portion of the first buttress material being retained against the tissue facing surface of the first jaw by the first buttress retainer; and a second buttress retainer having an open center portion and being attached to the second jaw, the peripheral portion of the second buttress material being retained against the tissue facing surface of the second jaw by the second buttress retainer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. In a jaw assembly for use in a surgical stapling instrument, wherein the jaw assembly includes a first jaw and a second jaw, at least one of the first jaw and the second jaw defining staple pockets for retaining staples, the improvement comprising:
a system for retaining a buttress material to a tissue facing surface of one of the first jaw or the second jaw, the system for retaining a buttress material including; a buttress material preloaded on at least one of the first jaw and the second jaw at the time of manufacture so as to overlie a respective tissue facing surface of the first jaw or the second jaw, the buttress material having a central portion and a peripheral portion including a peripheral perforation line separating the central portion from the peripheral portion, the peripheral portion being attached to the tissue facing surface of at least one of the first jaw or the second jaw, the central portion of the buttress material being separable from the peripheral portion thereof after the staples are fired; and a buttress retainer having an open center portion and being attached to at least one of the first jaw or the second jaw, the peripheral portion of the buttress material being retained against the tissue facing surface of the at least one of the first jaw or the second jaw by buttress retainer. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
Specification