Anchoring system for implantable heart valve prostheses
First Claim
1. An implantable heart valve prosthesis including a prosthetic valve component and an anchoring system, the anchoring system including a plurality of elongated discrete base elements attached to the prosthetic valve component, each having a longitudinal axis, and a plurality of hook-shaped elements secured to the base elements, wherein each of the plurality of hook-shaped elements includes a distal portion connected to a basal portion, wherein the distal portion of each hook-shaped element transitions from a first position that is inclined with respect to the basal portion approximately 90 degrees in a direction toward the longitudinal axis of a respective base element during implantation of the heart valve prosthesis, to a second position in which the distal portion is substantially aligned with respect to the basal portion when the heart valve prosthesis is deployed at a site of implantation for anchoring in a wall of an aorta, wherein the hook-shaped elements extend through the prosthetic valve component prior to the heart valve prosthesis being positioned at the implantation site and are supported inside the prosthetic valve component by a respective base element.
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Accused Products
Abstract
The invention relates to an anchoring system for heart valve prostheses which can be implanted by introduction via the aorta without any major surgical operation. With the heart valve prosthesis according to the invention it shall be achieved that this can be safely and quickly guided through the aorta toward the heart, and can be fixed there. With this, hook-shaped elements are secured to the commissures of the heart valve prosthesis the hooks of which are guided in an outward direction through the heart valve prosthesis material.
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Citations
19 Claims
- 1. An implantable heart valve prosthesis including a prosthetic valve component and an anchoring system, the anchoring system including a plurality of elongated discrete base elements attached to the prosthetic valve component, each having a longitudinal axis, and a plurality of hook-shaped elements secured to the base elements, wherein each of the plurality of hook-shaped elements includes a distal portion connected to a basal portion, wherein the distal portion of each hook-shaped element transitions from a first position that is inclined with respect to the basal portion approximately 90 degrees in a direction toward the longitudinal axis of a respective base element during implantation of the heart valve prosthesis, to a second position in which the distal portion is substantially aligned with respect to the basal portion when the heart valve prosthesis is deployed at a site of implantation for anchoring in a wall of an aorta, wherein the hook-shaped elements extend through the prosthetic valve component prior to the heart valve prosthesis being positioned at the implantation site and are supported inside the prosthetic valve component by a respective base element.
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10. A medical device, comprising:
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a heart valve prosthesis; a first plurality of pin-shaped elements, each securely connected to a first elongated, discrete base element at a respective first end, the first base element attached to the heart valve prosthesis; and a second plurality of pin-shaped elements, each securely connected to a second elongated, discrete base element at a respective first end, the second base element attached to the heart valve prosthesis; wherein each of the first and second plurality of pin-shaped elements includes a distal portion and a basal portion, wherein the distal portion of each pin-shaped element transitions from a first position, inclined substantially 90 degrees with respect to the basal portion in a direction toward a longitudinal axis of a respective base element during implantation of the heart valve prosthesis, to a second position, in which the distal portion is substantially aligned with respect to the basal portion when the heart valve prosthesis is deployed at a site of implantation; and wherein the pin-shaped elements extend through the heart valve prosthesis prior to the heart valve prosthesis being positioned at the implantation site and are supported inside the heart valve prosthesis by a respective base element. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A medical device, comprising:
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a heart valve prosthesis; a first plurality of pin-shaped elements, each connected to a first elongated, discrete base element at a respective first end and having a barb disposed at a respective second end, the first base element attached to the heart valve prosthesis; and a second plurality of pin-shaped elements, each connected to a second elongated, discrete base element at a respective first end and having a barb disposed at a respective second end, the second base element attached to the heart valve prosthesis; wherein each of the first and second plurality of pin-shaped elements is made from a shape memory material wherein each of the first and second pluralities of pin-shaped elements includes a distal portion connected to a basal portion, wherein the distal portion of each pin-shaped element transitions from a first position that is inclined with respect to the basal portion approximately 90 degrees in a direction toward a longitudinal axis of a respective base element during implantation of the heart valve prosthesis, to a second position in which the distal portion is substantially aligned with respect to the basal portion when the heart valve prosthesis is deployed at a site of implantation, wherein the pin-shaped elements extend through the heart valve prosthesis prior to the heart valve prosthesis being positioned at the implantation site and are supported inside the heart valve prosthesis by a respective base element. - View Dependent Claims (17, 18, 19)
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Specification