Adjustable nosecone

• US 10,335,277 B2
• Filed: 06/30/2016
• Issued: 07/02/2019
• Est. Priority Date: 07/02/2015
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Crisostomo, Crissly V., Gamarra, Randy S.
• Primary Examiner(s): Weisberg, Amy R
• Application Number:
  US15/197,893
• Publication Number:
  US 20170000607A1
• Time in Patent Office: 1,097 Days
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor

Abstract

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.

Claims

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.