Patent ID: 7550001
Filing Date: 2009-06-23
Classification: A61F,A61M

Abstract:
1. A device for releasing into the body from a delivery system a medical prosthesis mounted on the delivery system and held by a constraint in a constrained delivery disposition, the device comprising: a first hub for the delivery system; a second hub for an elongate element to connect the device to the prosthesis constraint; a track for the second hub to advance along, from a starting point corresponding to constraint of the prosthesis, to a finishing point corresponding to separation of the prosthesis and constraint; ratchet means to advance the second hub progressively, from the starting point to the finishing point, in a plurality of actuation strokes; and a full stroke actuator disposed distal to the ratchet means, to advance the second hub all the way from an intermediate point on the track to the finishing point in one single stroke of the actuator, the intermediate point being selectable by the user within a portion of the track which extends over at least half the length of the track.