Surgical methods of replacing prosthetic heart valves
First Claim
1. A surgical method of implanting a two-stage prosthetic heart valve in a native heart valve annulus of a patient, comprising:
- providing an expandable anchoring member having a generally tubular expandable body with a proximal end and a distal end, the anchoring member being configured to be constricted to a contracted anchoring member and configured to be enlarged to an expanded anchoring member sized to contact the heart valve annulus;
providing a non-expandable/non-collapsible prosthetic valve member having a peripheral sewing ring on an inflow end and one-way leaflets configured to permit flow in an outflow direction through the valve member;
preparing the patient for surgery by placing him/her on cardiopulmonary bypass;
creating a direct access pathway to the heart valve annulus that permits direct naked eye vision of the heart valve annulus;
delivering the anchoring member to a position within the heart valve annulus and with the proximal end directed toward an outflow side of the annulus;
enlarging the anchoring member to the expanded anchoring member and into contact with the heart valve annulus;
delivering the valve member to the expanded anchoring member such that the one-way leaflets permit flow toward the outflow side of the annulus; and
coupling the sewing ring to the expanded anchoring member.
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Accused Products
Abstract
A two-stage or component-based valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The prosthetic valve comprises a support structure that is deployed at a treatment site. The prosthetic valve further comprises a valve member configured to be quickly connected to the support structure. The support structure may take the form of a stent that is expanded at the site of a native valve. If desired, the native leaflets may remain and the stent may be used to hold the native valve open. In this case, the stent may be balloon expandable and configured to resist the powerful recoil force of the native leaflets. The support structure is provided with a coupling means for attachment to the valve member, thereby fixing the position of the valve member in the body. The valve member may be a non-expandable type, or may be expandable from a compressed state to an expanded state. The system is particularly suited for rapid deployment of heart valves in a conventional open-heart surgical environment.
420 Citations
23 Claims
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1. A surgical method of implanting a two-stage prosthetic heart valve in a native heart valve annulus of a patient, comprising:
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providing an expandable anchoring member having a generally tubular expandable body with a proximal end and a distal end, the anchoring member being configured to be constricted to a contracted anchoring member and configured to be enlarged to an expanded anchoring member sized to contact the heart valve annulus; providing a non-expandable/non-collapsible prosthetic valve member having a peripheral sewing ring on an inflow end and one-way leaflets configured to permit flow in an outflow direction through the valve member; preparing the patient for surgery by placing him/her on cardiopulmonary bypass; creating a direct access pathway to the heart valve annulus that permits direct naked eye vision of the heart valve annulus; delivering the anchoring member to a position within the heart valve annulus and with the proximal end directed toward an outflow side of the annulus; enlarging the anchoring member to the expanded anchoring member and into contact with the heart valve annulus; delivering the valve member to the expanded anchoring member such that the one-way leaflets permit flow toward the outflow side of the annulus; and coupling the sewing ring to the expanded anchoring member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification