Center cinch and release of buttress material
First Claim
Patent Images
1. An anvil assembly comprising:
- an anvil member;
a length of suture material;
a strip of buttress material secured to the anvil member with the suture material;
a track movably mounted to the anvil member and engageable with the length of suture, the track movable between a first position tensioning the length of suture and a second position releasing tension on the length of suture; and
a release member movably mounted to the anvil member and movable relative to the track to move the track to the second position.
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Accused Products
Abstract
A buttressed anvil assembly is provided for use with a surgical stapling instrument. The buttressed anvil assembly generally includes an anvil member having a strip of buttress material attached thereto by a pair of sutures. A tensioning mechanism is provided to secure or tension the buttress material to the anvil member prior to use and allow for release of the buttress material after stapling of tissue. The tensioning mechanism includes a cinch track engageable with one of the pair of sutures.
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Citations
19 Claims
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1. An anvil assembly comprising:
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an anvil member; a length of suture material; a strip of buttress material secured to the anvil member with the suture material; a track movably mounted to the anvil member and engageable with the length of suture, the track movable between a first position tensioning the length of suture and a second position releasing tension on the length of suture; and a release member movably mounted to the anvil member and movable relative to the track to move the track to the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A surgical stapling apparatus, comprising:
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an anvil assembly comprising; an anvil member having a first side and a second side; a length of suture material passing from the first side of the anvil member to the second side of the anvil member; a track movably mounted on the first side of the anvil member and engageable with the length of suture, the track movable between a first vertical position tensioning the length of suture and a second vertical position releasing tension on the length of suture; and a release member movably mounted on the first side of the anvil member and movable relative to the track to move the track to the second vertical position. - View Dependent Claims (18)
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19. A surgical stapling apparatus, comprising:
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a knife assembly including a knife blade; and an anvil assembly comprising; an anvil member including a knife slot, wherein the knife blade is distally movable through the knife slot; a proximal suture and a distal suture, each suture having a first side, a second side, and a backspan extending between the first and second sides; a strip of buttress material having a distal end and a proximal end, the strip of buttress material being secured to the anvil member by the distal suture and the proximal suture, wherein the distal suture secures the distal end of the strip of buttress material and the proximal suture secures the proximal end of the strip of buttress material, and wherein the backspan of the proximal suture extends across the knife slot such that the knife blade cuts the proximal end of the strip of buttress material and severs the backspan of the proximal suture as the knife blade moves distally through the knife slot; a track movably mounted to the anvil member and engageable with the distal suture, the track movable between a first position tensioning the distal suture and a second position releasing tension on distal suture; and a release member movably mounted to the anvil member and movable relative to the track to move the track to the second position.
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Specification