Transcatheter Valve Delivery Systems and Methods
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Accused Products
Abstract
Delivery devices and methods for percutaneously delivering a prosthetic valve to the heart of a patient. These prosthetic valves may be configured to provide complimentary features that promote optimal placement of the prosthetic valve in a native heart valve, such as the aortic valve, mitral valve, pulmonic valve, and/or tricuspid valve. The delivery device includes a release sheath assembly housed within an outer delivery sheath. A release sheath component of the assembly captures a portion of the prosthetic valve to the delivery device, and effectuates complete release of the prosthetic valve with retraction of the outer sheath.
67 Citations
22 Claims
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1-10. -10. (canceled)
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11. A system for replacing a defective heart valve of a patient, the system comprising:
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a prosthetic heart valve having a stent frame and a valve structure attached to the stent frame, the stent frame defining a distal region and a proximal region, the proximal region forming at least one post; and a delivery device comprising; a delivery sheath assembly terminating at a distal end and defining a lumen, an inner shaft slidably disposed within the lumen, a hub projecting from the inner shaft and configured to releasably receive the at least one post, a release sheath assembly disposed between the delivery sheath assembly and the inner shaft, the release sheath assembly including a release sheath slidably disposed about the inner shaft; wherein the system is configured to provide a loaded condition in which the prosthetic heart valve is retained between the delivery sheath assembly and the inner shaft, including the at least one post captured between the release sheath and the hub. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of percutaneously deploying a stented prosthetic heart valve to an implantation site of a patient, the method comprising:
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receiving a delivery device loaded with a radially expandable prosthetic heart valve having a stent frame to which a valve structure is attached, the delivery device including a delivery sheath assembly containing the prosthetic heart valve in a compressed arrangement over an inner shaft in a loaded state of the device, a hub projecting from the inner shaft, and a release sheath assembly including a release sheath slidably capturing a post of the stent frame to the hub; delivering the prosthetic heart valve in the compressed arrangement through a bodily lumen of the patient and to the implantation site via the delivery device in the loaded state; proximally retracting the delivery sheath assembly from the prosthetic heart valve; and permitting the post to release from the hub, including the release sheath assembly self-retracting the release sheath relative to the hub. - View Dependent Claims (20, 21, 22)
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Specification