REINFORCED VALVE Russian patent published in 2018 - IPC A61F2/02 A61F2/04 A61F2/07 A61F2/24 A61F2/91 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical equipment, specifically a valve to be used inside a stent or similar implant device, more particularly to a valve that, in some embodiments, comprises a reinforcing element, as well as to an implantable device with said valve and a method for manufacturing said device. Valve for placement in a body lumen comprises a body; a substantially cylindrically shaped rim disposed at a first end of the valve; an opening located at the second end of the valve, a reinforcement member. Substantially cylindrically shaped rim has a proximal end and a distal end. Opening comprises one or more leaflets. Opening has a closed configuration in which the leaflets are closed, an antegrade open configuration in which the leaflets are opened in response to an antegrade force, and a retrograde open configuration in which the leaflets are opened in response to a retrograde force. Reinforcement member comprises a polymer film and is coupled to the substantially cylindrically shaped rim. Reinforcement member is limited by the substantially cylindrically shaped rim. Tensile strength of the polymer film is higher than the tensile strength of the material used to make the substantially cylindrically shaped rim. Implantable device for placement in a body lumen comprises a substantially cylindrical stent with a through inner lumen and said valve. Valve is connected to the inner lumen of the substantially cylindrically shaped stent by means of a stitching element passing through the reinforcement member of the valve. Method of manufacturing an implantable device for placement in a body lumen includes the steps of: obtaining a substantially cylindrically shaped metal stent, obtaining a valve and coupling the valve to the inner lumen of the substantially cylindrically shaped stent via a stitching element disposed through the reinforcement member of the valve.

EFFECT: invention prevents rupture of the valve rim at an attachment site in a patient.

22 cl, 29 dwg