Buttress fixation for a circular stapler
First Claim
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1. A stapling apparatus comprising:
- a body portion;
a staple cartridge disposed within the body portion, the staple cartridge including a plurality of staple receiving slots defined in a tissue contacting surface of the staple cartridge, each staple receiving slot of the plurality of staple receiving slots including a staple disposed therein and at least one staple receiving slot of the plurality of staple receiving slots including a notch, the staple cartridge including a staple pusher disposed therein, the staple pusher having a plurality of fingers for driving the staples out of the plurality of staple receiving slots, at least one of the plurality of fingers including a protrusion; and
a buttress including a plurality of tabs at an outer edge of the buttress and at least one anchor attached to the buttress, the plurality of tabs defined between slits extending through the outer edge of the buttress, the buttress releasably retained on the staple cartridge by at least one tab of the plurality of tabs extending into a staple receiving slot of the plurality of staple receiving slots defined in the staple cartridge and the at least one anchor releasably retained within the notch, the staple pusher movable to move the protrusion into engagement with the anchor retained within the notch to push the anchor out from the notch.
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Abstract
A stapling apparatus includes a body portion, a staple cartridge disposed within the body portion, and a buttress removably attached to the staple cartridge. The staple cartridge includes a plurality of staple receiving slots defined in a tissue contacting surface of the staple cartridge, with each staple receiving slot of the plurality of staple receiving slots including a staple disposed therein. The buttress includes a plurality of tabs at an outer edge of the buttress. The buttress is releasably retained on the staple cartridge by at least one tab of the plurality of tabs extending into a staple receiving slot of the plurality of staple receiving slots defined in the staple cartridge.
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Citations
15 Claims
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1. A stapling apparatus comprising:
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a body portion; a staple cartridge disposed within the body portion, the staple cartridge including a plurality of staple receiving slots defined in a tissue contacting surface of the staple cartridge, each staple receiving slot of the plurality of staple receiving slots including a staple disposed therein and at least one staple receiving slot of the plurality of staple receiving slots including a notch, the staple cartridge including a staple pusher disposed therein, the staple pusher having a plurality of fingers for driving the staples out of the plurality of staple receiving slots, at least one of the plurality of fingers including a protrusion; and a buttress including a plurality of tabs at an outer edge of the buttress and at least one anchor attached to the buttress, the plurality of tabs defined between slits extending through the outer edge of the buttress, the buttress releasably retained on the staple cartridge by at least one tab of the plurality of tabs extending into a staple receiving slot of the plurality of staple receiving slots defined in the staple cartridge and the at least one anchor releasably retained within the notch, the staple pusher movable to move the protrusion into engagement with the anchor retained within the notch to push the anchor out from the notch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A buttress fixation system comprising:
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a staple cartridge having a plurality of staple receiving slots defined in a tissue contacting surface of the staple cartridge, each staple receiving slot of the plurality of staple receiving slots including a staple disposed therein and at least one staple receiving slot of the plurality of staple receiving slots including a notch, the staple cartridge including a staple pusher disposed therein, the staple pusher having a plurality of fingers for driving the staples out of the plurality of staple receiving slots, at least one of the plurality of fingers including a protrusion; and a buttress including a plurality of tabs at an outer edge of the buttress and at least one anchor attached to the buttress, the plurality of tabs defined between slits extending through the outer edge of the buttress, the buttress releasably retained on the staple cartridge by at least one tab of the plurality of tabs extending into a staple receiving slot of the plurality of staple receiving slots defined in the staple cartridge and the at least one anchor releasably retained within the notch, the staple pusher movable to move the protrusion into engagement with the anchor retained within the notch to push the anchor out from the notch. - View Dependent Claims (11, 12, 13, 14)
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15. A stapling apparatus comprising:
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a body portion; a staple cartridge disposed within the body portion, the staple cartridge including a plurality of staple receiving slots defined in a tissue contacting surface of the staple cartridge, each of the plurality of staple receiving slots including a staple disposed therein and at least one of the plurality of staple receiving slots including a notch, the staple cartridge including a staple pusher disposed therein, the staple pusher having a plurality of fingers for driving the staples out of the staple receiving slots, at least one of the plurality of fingers including a protrusion; and a buttress including a plurality of tabs at an outer edge of the buttress and at least one anchor attached to the buttress, at least one of the plurality of tabs extending into one of the plurality of staple receiving slots defined in the staple cartridge and the at least one anchor releasably retained within the notch, the staple pusher movable to move the protrusion into engagement with the anchor to push the anchor out from the notch.
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Specification