HEART VALVE PROSTHESIS Russian patent published in 2004 - IPC

FIELD: medical engineering.

SUBSTANCE: device has body, collar fixable on external valve body surface, disk-type locking member having concentric circular recess, upper arresting member and lower arresting members for restricting locking member displacements. The lower arresting members have rods protruding into device body inside biased towards the upper arresting member relative to the plane built in perpendicular to lower arresting members symmetry plane and passing via the central device body axis and having ring surface areas arranged concentrically relative to device body opening placed on rod ends coupled to the device body and directed aside from the upper arresting member. The upper arresting member has rod having protrusion biased relative to the lower arresting members symmetry plane having surface making contact with the locking member when opening.

EFFECT: improved hydrodynamic properties of the prosthesis.

4 dwg