Anastomotic Stapling Reinforcing Buttress and Methods of Deployment
OwnerNir I. Nativ, Yufu Li +3inventors
InventorsNir I. Nativ, Yufu Li, Michael Logue, Glenn Cook, Gwan-Ywan Lai
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Abstract
The present invention relates to surgical instruments and methods for enhancing properties of tissue repaired or joined by surgical staples and, more particularly to surgical instruments and methods designed to enhance the properties of repaired or adjoined tissue at a target surgical site, especially when sealing an anastomosis between adjacent intestinal sections so as to improve tissue viability, prevent tissue infection, and to prevent leakage.
Claims10
A circular stapling assembly for anastomotically joining tubular tissue sections comprising:
- a. A circular anvil;
- b. A circular staple head assembly having a centrally located passage and a knife located in the passage;
- c. A moveable shaft connecting the anvil and staple head;
- d. An elongated shaft extending from the staple head assembly and gripping means;
- and
- e. At least one reinforcing buttress comprising
- 1) a substantially flat disk of a flexible, bioabsorbable material having a centrally located aperture and
- 2) a plurality of radiating slits directed from said centrally located aperture towards a periphery of said disk that forms a plurality of leaflets, said slits terminating in end apertures at a distance from said periphery.
A circular anastomosis stapler kit comprising:
- a. A reinforcing buttress material comprising a substantially flat disk of a flexible, bioabsorbable material having a centrally located aperture and a plurality of radiating slits directed from said centrally located aperture towards a periphery of said disk that forms a plurality of leaflets, said slits terminating in end apertures at a distance from said periphery;
- b. an anastomotic stapler comprising a stapling head and an anvil moveable longitudinally relative to the stapling head and mounted on an axially extending moveable shaft, with the stapling head containing a plurality of deployable staples,
- c. a deployment tool comprising a hollow cylindrical body with a slidable plunger partially disposed in said body;
- d. a cylindrical radially expandable spring sized to fit within said hollow cylindrical body and within a knife cavity of said stapling head.
Dependencies are inferred from the claim text.