Device and method for treatment of atrioventricular regurgitation
DCFirst Claim
1. A method of stabilizing a first heart valve leaflet in a heart, comprising:
- providing a delivery catheter;
providing a clip formed from a temperature-activated memory material;
securing the clip in a delivery state to the delivery catheter;
advancing the clip to a desired position adjacent the first heart valve leaflet;
transforming the clip from the delivery state to an open state, wherein the clip is in an open position with a clip opening configured to receive an edge of the first heart valve leaflet;
positioning an edge of the first heart valve leaflet within the clip opening; and
transforming the clip from the open state to a closed state, whereby the edge of the first heart valve leaflet is secured within the clip.
4 Assignments
Litigations
1 Petition
Accused Products
Abstract
A device and method for treatment of atrioventricular regurgitation comprises a suturing device. The suturing device is configured to be introducible, via blood vessels leading to the heart, to two leaflets of the atrioventricular valve between the atrium and a corresponding ventricle of the heart. The suturing device is configured for binding together the two leaflets along the free edges of the leaflets. A method of using the device includes inserting the suturing device into a catheter, introducing the catheter to the heart and positioning a distal end of the catheter close to two leaflets of an atrioventricular valve, capturing the free edges of the two leaflets with the suturing device in its open state, binding together the two leaflets by transition of the suturing device into its closed state, and retracting the catheter from the heart. As a result, the closing of the valve is improved.
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Citations
16 Claims
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1. A method of stabilizing a first heart valve leaflet in a heart, comprising:
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providing a delivery catheter; providing a clip formed from a temperature-activated memory material; securing the clip in a delivery state to the delivery catheter; advancing the clip to a desired position adjacent the first heart valve leaflet; transforming the clip from the delivery state to an open state, wherein the clip is in an open position with a clip opening configured to receive an edge of the first heart valve leaflet; positioning an edge of the first heart valve leaflet within the clip opening; and transforming the clip from the open state to a closed state, whereby the edge of the first heart valve leaflet is secured within the clip. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus for securing a first heart valve leaflet, the apparatus comprising:
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a clip comprising a first end and a second end, the clip having an open state, a delivery state, and a closed state, the clip comprising a memory metal and being biased toward the closed state; and a delivery catheter, the delivery catheter comprising a first member configured to mechanically bias the clip toward the open state, and a second member configured to mechanically bias the clip toward the delivery state. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method of stabilizing a first heart valve leaflet in a heart, comprising:
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providing a delivery catheter; providing a clip formed from a memory material; securing the clip in a delivery state to the delivery catheter; advancing the clip to a desired position adjacent the first heart valve leaflet, wherein advancing the clip comprises advancing the clip into the right atrium of the heart, puncturing the interatrial septum of the heart, and advancing the clip through the interatrial septum and into the left atrium of the heart; transforming the clip from the delivery state to an open state, wherein the clip is in an open position with a clip opening configured to receive an edge of the first heart valve leaflet; positioning an edge of the first heart valve leaflet within the clip opening; and transforming the clip from the open state to a closed state, whereby the edge of the first heart valve leaflet is secured within the clip. - View Dependent Claims (13, 14, 15, 16)
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Specification