POLYTETRAFLUOROETHYLENE IMPLANT FOR ACHIEVING HEMOSTASIS CONDITION IN CARRYING OUT OPERATIONS ON PARENCHYMAL ORGANS Russian patent published in 2007 - IPC A61F2/02 A61L27/56 

FIELD: medicine.

SUBSTANCE: device has at least two porous polytetrafluoroethylene layers of different structure. The layer adjacent to parenchymal organ is composed of at least ten 30-120 mcm thick porous polytetrafluoroethylene layers having volume share of hollow space equal to 79-93%, specific surface of hollow space of 0.65-0.80 mcm²/mcm³, mean volume chord length of 25-30 mcm. The external layer has at least one 40-90 mcm thick porous polytetrafluoroethylene layer having 43-50% share of hollow space, 0.35-0.45 mcm²/mcm³ large specific surface of hollow space, mean distance between the bubbles in the volume being equal to 9,0-15,0 mcm, mean volume chord length of 8-11 mcm. General implant porosity is not less than 80%, implant thickness is equal to 1.0-2.0 mm.

EFFECT: producing implants allowing vasoselective parenchymatous sutures application.

6 cl, 5 dwg, 1 tbl