Adjustable nosecone
A percutaneous valve delivery system may include an outer sheath and an inner catheter disposed within the outer sheath. The inner catheter may include a plurality of lumens formed therein. A tubular extension may extend distally from a distal end of the inner catheter, wherein the tubular extension is axially movable relative to the inner catheter. A nose cone may be attached to the tubular extension. A handle may be attached to the outer sheath, wherein the handle is configured to shift the outer sheath between a first position and a second position relative to the inner catheter. A valve replacement implant may be releasably coupled to the inner catheter.
1. A percutaneous valve delivery system, comprising:
an outer sheath;
an inner catheter disposed within the outer sheath, the inner catheter including a plurality of non-concentric lumens formed therein;
a tubular extension extending distally from a distal end of the inner catheter;
wherein the tubular extension is axially movable relative to the inner catheter;
wherein the tubular extension is fixedly attached to and within a hypotube slidably received within one of the plurality of lumens;
a nose cone attached to the tubular extension;
a handle attached to the outer sheath, wherein the handle is configured to shift the outer sheath between a first position and a second position relative to the inner catheter; and
a valve replacement implant releasably coupled to the inner catheter.
2. The percutaneous valve delivery system of claim 1 , further comprising a luer connector attached to a proximal end of the hypotube, the luer connector being configured to engage a proximal end of the handle.
3. The percutaneous valve delivery system of claim 2 , wherein the luer connector, the hypotube, the tubular extension, and the nose cone together form a nose cone subassembly having a guidewire lumen extending through the percutaneous valve delivery system, wherein the guidewire lumen is configured to slidably receive a guidewire therein.
4. The percutaneous valve delivery system of claim 2 , wherein the luer connector is threadably attached to the proximal end of the hypotube.
5. The percutaneous valve delivery system of claim 2 , wherein the luer connector includes a protrusion preventing distal axial movement of the luer connector past the proximal end of the handle.
6. The percutaneous valve delivery system of claim 2 , wherein the nose cone subassembly is axially movable relative to the inner catheter and the handle.
7. The percutaneous valve delivery system of claim 1 , wherein the valve replacement implant is disposed about the tubular extension.
8. The percutaneous valve delivery system of claim 1 , wherein the nose cone is fixedly attached at a distal end of the tubular extension.
9. The percutaneous valve delivery system of claim 1 , wherein a proximal portion of the nose cone is configured to matingly engage a distal end of the outer sheath in the first position.
10. A percutaneous valve delivery system, comprising:
an outer sheath;
an inner catheter disposed within the outer sheath, the inner catheter including a plurality of non-concentric lumens formed therein;
a tubular extension extending distally from a distal end of the inner catheter;
wherein the tubular extension is axially movable relative to the inner catheter;
wherein the tubular extension is fixedly attached to and within a hypotube slidably received within one of the plurality of lumens;
a nose cone attached to the tubular extension;
a handle attached to the outer sheath, wherein the handle is configured to shift the outer sheath between a first position and a second position relative to the inner catheter, the inner catheter being fixed to the handle; and
a valve replacement implant releasably coupled to the inner catheter, the tubular extension extending through the valve replacement implant.
11. The percutaneous valve delivery system of claim 10 , further comprising a luer connector attached to a proximal end of the hypotube, the luer connector being configured to engage a proximal end of the handle.
12. The percutaneous valve delivery system of claim 11 , wherein the luer connector, the hypotube, the tubular extension, and the nose cone together form a nose cone subassembly having a guidewire lumen extending through the percutaneous valve delivery system, wherein the guidewire lumen is configured to slidably receive a guidewire therein.
13. The percutaneous valve delivery system of claim 11 , wherein the luer connector is threadably attached to the proximal end of the hypotube.
14. The percutaneous valve delivery system of claim 11 , wherein the luer connector includes a protrusion preventing distal axial movement of the luer connector past the proximal end of the handle.
15. The percutaneous valve delivery system of claim 11 , wherein the nose cone subassembly is axially movable relative to the inner catheter and the handle.
16. The percutaneous valve delivery system of claim 10 , wherein the nosecone is fixedly attached at a distal end of the tubular extension.
17. The percutaneous valve delivery system of claim 10 , wherein a proximal portion of the nose cone is configured to abut a distal end of the outer sheath in the first position.
18. The percutaneous valve delivery system of claim 17 , wherein the nose cone is spaced distally from the outer sheath in the second position.