Sheath for Controlled Delivery of a Heart Valve Prosthesis
First Claim
1. A delivery sheath for controlling deployment of a self-expanding support structure of a prosthetic valve that flares in a proximal direction upon implantation in vivo comprising:
- a tubular body portion defining a delivery lumen between a proximal end and a distal end thereof; and
a side opening formed through a side wall of the tubular body portion, wherein the side opening proximally extends from the distal end of the delivery sheath within the side wall.
1 Assignment
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Accused Products
Abstract
Apparatus and methods are disclosed for controlling deployment of a self-expanding support structure of a prosthetic valve that flares in a proximal direction upon implantation in vivo. A tubular delivery sheath having a side opening that proximally extends within a side wall thereof is used to deploy the prosthetic valve with the self-expanding support structure in a controlled manner. The prosthetic valve is distally advanced within a lumen of the delivery sheath with the self-expanding support structure held in a compressed delivery configuration within the delivery sheath lumen. The self-expanding support structure of the prosthetic valve is aligned with the side opening of the delivery sheath and the prosthetic valve is rotated relative to the delivery sheath whereby the self-expanding support structure is laterally released from the delivery sheath lumen through the side opening to gradually transition from the compressed delivery configuration to a flared deployed configuration.
94 Citations
23 Claims
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1. A delivery sheath for controlling deployment of a self-expanding support structure of a prosthetic valve that flares in a proximal direction upon implantation in vivo comprising:
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a tubular body portion defining a delivery lumen between a proximal end and a distal end thereof; and a side opening formed through a side wall of the tubular body portion, wherein the side opening proximally extends from the distal end of the delivery sheath within the side wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of controlling deployment of a self-expanding support structure of a prosthetic valve that flares in a proximal direction upon implantation in vivo comprising:
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advancing the prosthetic valve with the self-expanding support structure within a lumen of a delivery sheath such that the self-expanding support structure is held in a compressed delivery configuration within the delivery sheath lumen; aligning the self-expanding support structure of the prosthetic valve with a side opening of the delivery sheath, wherein the side opening proximally extends within a side wall of the delivery sheath from a distal end thereof; and rotating the prosthetic valve relative to the delivery sheath whereby the self-expanding support structure is laterally released from the delivery sheath lumen through the side opening in the delivery sheath to gradually return from the compressed delivery configuration to a proximally flared deployed configuration in a controlled manner. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method of implanting a heart valve prosthesis having a self-expanding engagement arm that in a deployed configuration flares in a proximal direction comprising:
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gaining access to a ventricle of the heart; advancing a guidewire through the ventricle and across a heart valve to be replaced; advancing a delivery sheath along the guidewire to a treatment site across the heart valve, wherein the delivery sheath has a tubular body portion that defines a delivery sheath lumen and wherein a side opening proximally extends through a side wall of the tubular body portion from a distal end of the delivery sheath; advancing a heart valve prosthesis through the delivery sheath lumen until the heart valve prosthesis is positioned for deployment at the treatment site, wherein the self-expanding engagement arm of the heart valve prosthesis is held in a compressed delivery configuration within the delivery sheath lumen; distally advancing the heart valve prosthesis relative to the delivery sheath to align the self-expanding engagement arm with the side opening of the delivery sheath; and rotating the heart valve prosthesis relative to the delivery sheath to gradually slide the engagement arm through the delivery sheath side opening whereby the engagement arm transitions in a controlled manner from the compressed delivery configuration to the proximally flared deployed configuration. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification