System and method for crimping a prosthetic heart valve

摘要

A device for crimping a radially expandable and collapsible prosthetic valve comprises a coiled wire frame having a longitudinal opening extending from a proximal end to a distal end thereof. The opening has a first state and a second state, the opening in the first state having a first diameter dimensioned to receive the prosthetic valve in an expanded or partially crimped configuration therein, and the opening in the second state having a second diameter dimensioned to receive the prosthetic valve in a crimped configuration. The coiled wire frame has a first end coupled to a first member and a second end coupled to a second member. The first member is movable relative to the second member to convert the coiled wire frame from the first state to the second state.

主权项

1. An assembly comprising:
a radially expandable and compressible prosthetic valve; a delivery catheter comprising a handle and an elongated shaft coupled to the handle; and a crimping device mounted on the shaft of the delivery catheter, the crimping device comprising a holding mechanism configured to releasably grip the shaft, thereby maintaining the position of the crimping device relative to the shaft, the crimping device being configured to reduce the diameter of the prosthetic valve to a delivery configuration; wherein the prosthetic valve is contained within the crimping device.