초록 ▼

A prosthetic heart valve (valve) composed of a base ring adapted to house a suture ring in its exterior and two leaflets arranged to assume an open position and a closed position in order to regulate the blood flow in one direction, wherein the base ring is provided with two recesses with curved sur

A prosthetic heart valve (valve) composed of a base ring adapted to house a suture ring in its exterior and two leaflets arranged to assume an open position and a closed position in order to regulate the blood flow in one direction, wherein the base ring is provided with two recesses with curved surfaces situated in diametrically opposite positions. Each of the recesses communicate with the exterior through a chimney-like aperture formed in the body of the base ring in correspondence with the recess. Each of the curved recesses has a substantially flat surface bounding its upper part and two spherical bottom surfaces in its lower part, separated by a separator body essentially in the shape of a semi-spherical-nail.

대표청구항 ▼

A prosthetic heart valve for reducing the formation of thrombi comprising: (a) a base ring adapted to house a suture ring in its exterior for suturing to the heart tissue, wherein said base ring includes an inner surface with walls forming two diametrically opposed recesses which communicate with th

A prosthetic heart valve for reducing the formation of thrombi comprising: (a) a base ring adapted to house a suture ring in its exterior for suturing to the heart tissue, wherein said base ring includes an inner surface with walls forming two diametrically opposed recesses which communicate with the exterior, and wherein said recesses include: (i) an upper portion having a substantially flat surface with an opening therebetween; (ii) a lower portion separated into two spherical bottom surfaces by a separator body wherein said separator body extends from said lower portion of said recess and said separator body comprises a wedge shape to provide an opposing recess portion on each side of said separator body; and (b) two leaflets having an open position and a closed position for regulating the flow of blood in one direction wherein each of said leaflets has a pair of tongues with one tongue on each side of each leaflet positioned in a recess portion of each of said opposing recesses, and wherein said tongues of said leaflets have continuously changing point contact with the walls of said opposing recesses when said leaflets move between said open position and said closed position for preventing the formation of thrombi as the blood flows from and through said recesses.