Devices and methods for reducing cardiac valve regurgitation
First Claim
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1. A device for reducing regurgitant flow through a cardiac valve, the device comprising:
- an expandable body, wherein the body comprises a collapsed profile adapted for percutaneous delivery of the body to an internal body location and an expanded profile larger than the collapsed profile;
a tether attached to the body; and
an anchor located at the distal end of the tether, wherein the anchor is adapted to fix the position of a distal end of the tether at a selected location;
wherein the tether comprises a length between the anchor and the body such that the body is positioned across the cardiac valve when the device is deployed in a heart.
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Abstract
Devices and methods that may be used to reduce valve regurgitation are disclosed by locating a body across the regurgitant valve. When the valve closes, the body obliterates/ameliorates the regurgitant orifice in the valve, thereby reducing or preventing valve regurgitation. The body may be expandable. The devices may be implantable such that they can remain in place within a subject for extended periods of time.
136 Citations
16 Claims
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1. A device for reducing regurgitant flow through a cardiac valve, the device comprising:
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an expandable body, wherein the body comprises a collapsed profile adapted for percutaneous delivery of the body to an internal body location and an expanded profile larger than the collapsed profile; a tether attached to the body; and an anchor located at the distal end of the tether, wherein the anchor is adapted to fix the position of a distal end of the tether at a selected location; wherein the tether comprises a length between the anchor and the body such that the body is positioned across the cardiac valve when the device is deployed in a heart. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16)
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10. A device for reducing regurgitant flow through a cardiac valve, the device comprising:
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an expandable body in the form of an inflatable balloon, wherein the expandable body comprises a collapsed profile adapted for percutaneous delivery of the expandable body to an internal body location and an expanded profile larger than the collapsed profile; an inflation lumen in fluid communication with the inflatable balloon, wherein the inflatable balloon can be expanded to place the expandable body in the expanded profile by delivering an inflation fluid into the inflatable balloon through the inflation lumen; a tether attached to the expandable body, wherein a location of the expandable body on the tether can be adjusted; and an anchor located at the distal end of the tether, wherein the anchor is adapted to fix the position of a distal end of the tether at a selected location; wherein the tether comprises a length between the anchor and the body such that the body is positioned across the cardiac valve when the device is deployed in a heart.
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Specification