METHOD OF IMPLANTING A SELF-EXPANDABLE PROSTHETIC HEART VALVE
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Abstract
A method of implanting a collapsible prosthetic heart valve is disclosed. The prosthetic heart valve includes three biological leaflets mounted within a self-expanding tubular leaflet frame formed of nitinol. The method comprises loading a collapsed prosthetic heart valve into a distal end of a delivery tube. The distal end of the delivery tube is inserted into a vasculature of a patient and positioned proximal to an aortic valve. The prosthetic heart valve is expelled into an annulus of the aortic valve and allowed to self-expand to a first diameter. A balloon is then inflated within the prosthetic heart valve for expanding the prosthetic heart valve to a second diameter, wherein the second diameter is larger than the first diameter, thereby securely implanting the prosthetic heart valve within the annulus of the aortic valve.
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Citations
68 Claims
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1-50. -50. (canceled)
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51. A method of implanting a collapsible prosthetic heart valve, comprising:
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loading a collapsed prosthetic heart valve into a distal end of a delivery tube, the prosthetic heart valve comprising a self-expanding tubular leaflet frame formed of nitinol, the prosthetic heart valve further comprising three biological leaflets, each leaflet having a free edge and an outer edge, the free edges arranged to coapt within the prosthetic heart valve to provide a one-way occlusion and each outer edge attached to the leaflet frame; inserting the distal end of the delivery tube into a vasculature of a patient; positioning the distal end of the delivery tube proximal to an aortic valve; expelling the prosthetic heart valve into an annulus of the aortic valve; allowing the prosthetic heart valve to self-expand to a first diameter; and inflating a balloon within the prosthetic heart valve for expanding the prosthetic heart valve to a second diameter, the second diameter larger than the first diameter, thereby securely implanting the prosthetic heart valve within the annulus of the aortic valve. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59)
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60. A method of implanting a collapsible prosthetic heart valve, comprising:
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permitting a prosthetic heart valve to self-expand to a first diameter, the self-expanding prosthetic heart valve comprising a frame displaying hysteresis in the elastic or superelastic region; and physically expanding the prosthetic heart valve to a second diameter, the second diameter larger than the first diameter. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68)
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Specification