Transcatheter prosthetic heart valve delivery device with biased release features
First Claim
1. A method of percutaneously deploying a stented prosthetic heart valve to an implantation site of a patient, the method comprising:
- 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 delivery state of the device, and a capture assembly attached to the inner shaft, the capture assembly including;
a spindle attached to the inner shaft and defining a plurality of circumferentially spaced longitudinal capture slots,a plurality of biasing members, each of which are disposed within each of the plurality of capture slots respectively, and configured to self-transition from a deflected condition to a normal condition,wherein each of a plurality of posts of the stent frame is slidably disposed within each of the plurality of capture slots respectively in the delivery state in a manner forcing the plurality of biasing members to the deflected condition;
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 delivery state;
proximally retracting the delivery sheath assembly from the prosthetic heart valve; and
permitting the plurality of posts to release from the plurality of capture slots, including the plurality of biasing members self-transitioning toward the normal condition to eject the plurality of posts from the plurality of capture slots.
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Accused Products
Abstract
A delivery system for percutaneously delivering and deploying a stented prosthetic heart valve. The delivery device includes a delivery sheath slidably disposed over an inner shaft, and a capture assembly. The capture assembly includes a spindle and a biasing member. The spindle is attached to the inner shaft and defines slot. The biasing member is disposed within the slot and self-transitions from a deflected condition to a normal condition. In a delivery state, the delivery sheath retains the prosthesis over the inner shaft and coupled to the spindle via the capture slot, including a portion of the prosthetic valve being engaged within the slot and the biasing member forced to the deflected condition. In a deployment state, the delivery sheath is proximally withdrawn and the biasing member self-transitions toward the normal condition to eject the prosthetic valve from the capture slot.
44 Citations
3 Claims
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1. 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 delivery state of the device, and a capture assembly attached to the inner shaft, the capture assembly including; a spindle attached to the inner shaft and defining a plurality of circumferentially spaced longitudinal capture slots, a plurality of biasing members, each of which are disposed within each of the plurality of capture slots respectively, and configured to self-transition from a deflected condition to a normal condition, wherein each of a plurality of posts of the stent frame is slidably disposed within each of the plurality of capture slots respectively in the delivery state in a manner forcing the plurality of biasing members to the deflected condition; 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 delivery state; proximally retracting the delivery sheath assembly from the prosthetic heart valve; and permitting the plurality of posts to release from the plurality of capture slots, including the plurality of biasing members self-transitioning toward the normal condition to eject the plurality of posts from the plurality of capture slots. - View Dependent Claims (2, 3)
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Specification