SEALING MATERIALS TO BE APPLIED IN SEDIVE OF SURFACE Russian patent published in 2019 - IPC A61B17/68 

FIELD: medical equipment.

SUBSTANCE: group of inventions relates to medical equipment, specifically to surgical instruments, in particular to methods, devices and their components for cutting and stapling tissue. Disclosed is a tissue reinforcing material held on an end effector portion of a surgical stapling instrument releasably for delivery to tissue by using staples, containing fibers having a configuration configured to compress and form a seal around the fastening component inserted there through. Fibers form three-dimensional net pattern, having vertical elasticity and radial elasticity, and contain vertically standing loops, made of rigid material, at that, other material reinforcing fabric is made of soft material. Base of each standing loop can be connected by a unit with a braided substrate, which forms an anchor and provides vertical elasticity. Disclosed is a staple cartridge assembly for use with a surgical suturing instrument comprising a cassette body and a tissue hardening material. Cartridge body has staple cavities configured to accommodate staples. Material reinforcing material is retained with the possibility of release on the cartridge body and is made with the possibility of delivery to fabric due to use of staples in the cartridge body. Material reinforcing material comprises fibers having a configuration configured to compress and form a seal around the fastening component inserted there through. Fibers form three-dimensional mesh pattern, having vertical elasticity, and radial elasticity and contain vertically standing loops, made of rigid material, at that, other material reinforcing fabric is made of soft material. Base of each standing loop can be connected by a unit with a braided substrate, which forms an anchor and provides vertical elasticity. Also disclosed is a method of implanting tissue reinforcing material, according to which tissue is interacted between a cartridge assembly and an anvil of a surgical stapling instrument in a surgical field and actuating a surgical stapling apparatus for pushing staples from the cartridge assembly into the tissue. At least one of the cartridge assembly and the anvil has fabric reinforcing material held thereon with possibility of release. Material contains fibers having a configuration configured to compress and form a seal around the fastening component inserted there through. Fibers form three-dimensional net pattern, having vertical elasticity and radial elasticity, and contain vertically standing loops, made of rigid material, at that, other material reinforcing fabric is made of soft material. Base of each standing loop can be connected by a unit with a braided substrate, which forms an anchor and provides vertical elasticity. Fastening component passes through the tissue reinforcing material to hold the material in the surgical field and to form a seal around the fastening component.

EFFECT: use of inventions makes it possible to prevent prevention of leakage of fluid medium around the staple foot.

18 cl, 25 dwg