Collapsible cardiac implant and deployment system
AssigneeEdwards Lifesciences Corporation
InventorsTeodoro S. Jimenez, Mark M. Dehdashtian, Raffaele Mazzei
Life of this patent
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Abstract
A collapsible device, such as an annuloplasty ring or prosthetic heart valve, is configured to be collapsed prior to being introduced into a patient via minimally-invasive access points such as port holes or intercostal incisions. A holder is configured to hold the collapsible device, and to selectively collapse the device for introduction into the patient and then re-enlarge the device at the desired deployment site. Collapsible devices include devices that can hingedly fold about hinge lines, and devices that can elongate to form substantially spiral forms with reduced diameters.
Claims20
A system for implanting a collapsible heart valve in a human body, comprising, comprising:
- a collapsible heart valve having a support ring comprising two half portions, wherein a first central stent structure defines a first half portion, and a second central stent structure defining a second half portion;
- hinges securing the two half portions to each other to form a completed support ring, wherein the hinges permit relative hinging movement between the two half portions;
- a first commissural support extending upward from the first half portion at a midpoint between opposing ends thereof;
- second and third commissural supports extending upwardly from the second half portion at points spaced away from a midpoint of opposing ends thereof, such that when the first and second half portions are rotated toward each other in an upward direction around the hinges, the collapsible heart valve is in an closed/undeployed configuration and the first commissural support is rotated to a position in between the second and third commissural supports;
- and
- a plurality of valve leaflets, wherein each valve leaflet extends between and is supported by two of the commissural supports, and wherein when the collapsible heart valve is in an open/deployed configuration, the valve leaflets coapt to control fluid flow through a central orifice defined within the support ring.
A system for implanting a collapsible heart valve in a human body, comprising, comprising:
- a collapsible heart valve having a support ring comprising two half portions, wherein a first central stent structure defines a first half portion, and a second central stent structure defining a second half portion;
- hinges securing the two half portions to each other to form a completed support ring, wherein the hinges permit relative hinging movement between the two half portions;
- commissural supports extending upward from the first and second half portions;
- a plurality of valve leaflets, wherein each valve leaflet extends between and is supported by two of the commissural supports, and wherein when the collapsible heart valve is in an open/deployed configuration, the valve leaflets coapt to control fluid flow through a central orifice defined within the support ring;
- and
- a first sewing ring portion secured to the first half portion and a second sewing ring portion secured to the second half portion with respective ends thereof being adjacent.
Dependencies are inferred from the claim text.