Low profile transseptal catheter and implant system for minimally invasive valve procedure
First Claim
1. A method of supporting a heart valve, the method comprising:
- looping a first guide wire around a first leaflet of the heart valve;
looping a second guide wire around a second leaflet of the heart valve;
extending a first leaflet brace over the first guide wire and around the first leaflet; and
extending a second leaflet brace over the second guide wire and around the second leaflet.
1 Assignment
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Accused Products
Abstract
A low profile transseptal catheter and implant system is disclosed. Access to the mitral valve can be obtained using femoral catheterization with a fluoroscopically guided, low-profile catheter. For example, the right atrium is accessed and the interatrial septum punctured to access the left atrium, and the mitral valve is approached through the left atrium. Advantageously, this approach avoids contact with the left ventricular outflow tract and the chordae tendinae. Two leaflet braces are extended over guide wires to form semicircular loops that circumnavigate the anterior and posterior mitral valve leaflets. Tension is applied to the catheter from the atrial direction to keep the leaflet braces tightly wedged under the leaflets for the remainder of the procedure. A fastener joins the ends of each loop to create one annular ring encircling the valve under the anterior and posterior leaflets.
155 Citations
18 Claims
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1. A method of supporting a heart valve, the method comprising:
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looping a first guide wire around a first leaflet of the heart valve; looping a second guide wire around a second leaflet of the heart valve; extending a first leaflet brace over the first guide wire and around the first leaflet; and extending a second leaflet brace over the second guide wire and around the second leaflet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of supporting a native heart valve comprising:
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positioning a first leaflet brace around a first leaflet of the native heart valve, the first leaflet brace having first and second end portions; positioning a second leaflet brace around a second leaflet of the native heart valve, the second leaflet brace having first and second end portions, wherein the first leaflet brace and the second leaflet brace are separate components; fastening the first end portion of the first leaflet brace to the first end portion of the second leaflet brace; and fastening the second end portion of the first leaflet brace to the second end portion of the second leaflet brace; wherein after the acts of fastening, the first and second leaflet braces form an enclosed ring encircling the first and second leaflets of the native heart valve. - View Dependent Claims (12, 13, 16, 17, 18)
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14. A method of supporting a native heart valve comprising:
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positioning a first leaflet brace around a first leaflet of the native heart valve, the first leaflet brace having first and second end portions; positioning a second leaflet brace around a second leaflet of the native heart valve, the second leaflet brace having first and second end portions; fastening the first end portion of the first leaflet brace to the first end portion of the second leaflet brace; fastening the second end portion of the first leaflet brace to the second end portion of the second leaflet brace; wherein after the acts of fastening, the first and second leaflet braces form an enclosed ring encircling the first and second leaflets of the native heart valve; wherein the act of fastening the first end portion of the first leaflet brace to the first end portion of the second leaflet brace comprises positioning a first fastener over the first end portions, thereby retaining the first end portions relative to each other; and wherein the act of fastening the second end portion of the first leaflet brace to the second end portion of the second leaflet brace comprises positioning a second fastener over the second end portions, thereby retaining the second end portions relative to each other; wherein the act of positioning the first fastener comprises; advancing a first fastening catheter and the first fastener over the first end portions of the first and second leaflet braces; and releasing the first fastener from the first fastening catheter. - View Dependent Claims (15)
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Specification