| 摘要 |
<p>@ A two-piece heart valve holder engageable by a separate handle for positioning and rotating the heart valve. The holder includes a cylindrically-shaped plug member (10) that has a recessed shoulder (21) at one end sized to frictionally engage the inside surface of the body of the heart valve prosthesis (12). The other end of the cylindrical plus is in the form of a V-shaped seat (30). Two passages (25) extend through the plug member and a wall (27) projects upwardly from the peruphery of the seat adjacent each of the passages. A separate grip member (11) includes two legs 924), each sized in length to extend through the passageways (25) in the plug member. The two legs each include a base member (25) to which each leg is respectively connected at an angle inward from the outer edge of the base member. The two base members are hinged (31) together with the legs biased outwardly, and each leg has an outwardly projecting foot (28) at the distal end thereof. To secure a heart valve prosthesis (12) fitted on the recessed shoulder (21) of the plug member, the legs (24) of the grip member are inserted into the passageways (25) of the plug member. When the upper ends of the legs engage the walls of the upper ends of the passages, the legs are cammed outwardly so that the legs are substantially parallel with the axis of the plug member and the feet (28) on each leg engage the edge of the valve body of the prosthesis to prevent its removal from the plug member. Once the prosthesis is sutured in place, the grip member is released by lifting a tab (45) that extends upwardly from one of the base members.</p> |
