Percutaneous valve, system and method
First Claim
Patent Images
1. A system, comprising:
- an elongate delivery catheter including a distal end and a proximal end;
a retractable sheath positioned around at least a portion of the elongate delivery catheter;
a valve positioned around the distal end of the elongate delivery catheter and between the elongate delivery catheter and the retractable sheath,wherein the valve comprises an expandable valve frame including a distal end, a proximal end, and a lumen therebetween and a plurality of valve leaflets pivotably coupled to the proximal end of the expandable valve frame and having a first position in which the plurality of valve leaflets extend proximally from the proximal end of the expandable valve frame and a second position in which the plurality of valve leaflets are within the lumen of the expandable valve frame; and
a number of elongate push members positioned around the elongate delivery catheter proximal of the valve;
wherein the valve is configured to shift from a delivery state to a deployed state following withdrawal of the retractable sheath from the valve;
wherein in the delivery state, the plurality of valve leaflets is in the first position extending away from the proximal end of the valve and the valve frame lumen, and wherein in the deployed state, the plurality of valve leaflets is in the second position disposed within the lumen of the valve.
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Abstract
Apparatus, systems, and methods for percutaneous valve replacement and/or augmentation are provided. The apparatus includes a valve having a valve frame, a valve leaflet coupled to the valve frame, and a leaflet transition member coupled to the valve leaflet. The valve leaflet and leaflet transition member can transition from a first position where the valve leaflet and leaflet frame are at least partially outside a lumen of the valve frame to a second position where the valve leaflet and the leaflet transition member are within the lumen of the valve frame.
629 Citations
10 Claims
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1. A system, comprising:
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an elongate delivery catheter including a distal end and a proximal end; a retractable sheath positioned around at least a portion of the elongate delivery catheter; a valve positioned around the distal end of the elongate delivery catheter and between the elongate delivery catheter and the retractable sheath, wherein the valve comprises an expandable valve frame including a distal end, a proximal end, and a lumen therebetween and a plurality of valve leaflets pivotably coupled to the proximal end of the expandable valve frame and having a first position in which the plurality of valve leaflets extend proximally from the proximal end of the expandable valve frame and a second position in which the plurality of valve leaflets are within the lumen of the expandable valve frame; and a number of elongate push members positioned around the elongate delivery catheter proximal of the valve; wherein the valve is configured to shift from a delivery state to a deployed state following withdrawal of the retractable sheath from the valve; wherein in the delivery state, the plurality of valve leaflets is in the first position extending away from the proximal end of the valve and the valve frame lumen, and wherein in the deployed state, the plurality of valve leaflets is in the second position disposed within the lumen of the valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification