Sheath tip

• US 20060287671A1
• Filed: 08/24/2006
• Published: 12/21/2006
• Est. Priority Date: 09/04/2002
• Status: Abandoned Application

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Renati, Richard J., Demond, Jackson F., Krolik, Jeff A.
• Application Number:
  US11/467,064
• Publication Number:
  US 20060287671A1
• Time in Patent Office: Days
• US Class Current: 606/200
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2230/0008 elliptical or oval

Abstract

An embolic protection filter delivery and/or retrieval assembly. In one embodiment the assembly includes a shaft having a filter coupled thereto, a sheath, and a tapering member.

Claims

1. An embolic protection filter assembly, comprising;

an outer sheath having a proximal end, a distal end, and a lumen extending therethrough;

an elongate shaft disposed in at least a portion of the lumen, the shaft having a distal end;

an embolic protection filter coupled to the shaft near the distal end thereof; and

a tapering member comprising a nose cone slidably disposed within the lumen near the distal end of the sheath, the tapering member being adapted and configured to shift between a first position and a second position, such that when the tapering member is in the first position, the tapering member provides the outer sheath with a tapered distal tip.

2. The assembly of claim 1, further comprising a shaft having a first end connected to the nose cone and a second end disposed proximate the proximal end of the sheath, wherein the second end can be actuated by a user to shift the nose cone between the first position and the second position.

3. The assembly of claim 1, wherein the nose cone includes a tapered distal surface.

4. The assembly of claim 1, further comprising a marker member coupled to the sheath.

5. The assembly of claim 4, wherein the marker member is coupled to the sheath by folding a portion of the sheath proximally over the marker member.

6. An embolic protection filter assembly, comprising;

an outer sheath having a proximal end, a distal end, and a lumen extending therethrough;

a nose cone slidably disposed within the lumen, the nose cone adapted and configured to shift between a first position wherein a portion of the nose extends out from the distal end of the sheath and a second position wherein the nose cone is shifted proximally within the lumen;

an elongate shaft disposed in at least a portion of the lumen, the shaft having a distal end; and

an embolic protection filter coupled to the shaft near the distal end thereof.

7. The assembly of claim 6, wherein the nose cone has a tapered distal surface.

8. The assembly of claim 6, further comprising an actuating member having a first end connected to the nose cone and a second end disposed proximate the proximal end of the sheath, wherein the second end can be actuated by a user to shift the nose cone between the first position and the second position.

9. The assembly of claim 6, further comprising a marker member coupled to the sheath.

10. The assembly of claim 9, wherein the marker member is coupled to the sheath by folding a portion of the sheath proximally over the marker member.

11. An embolic protection filter assembly, comprising;

an outer sheath having a proximal end, a distal end, and a lumen extending therethrough;

an elongate shaft disposed in at least a portion of the lumen, the shaft having a distal end;

an embolic protection filter coupled to the shaft near the distal end thereof; and

a tapering member coupled to the sheath and disposed near the distal end of the sheath, the tapering member comprising a bulbous tip disposed at the distal end of the sheath, the tapering member being adapted and configured to shift between a first position and a second position, such that when the tapering member is in the first position, the tapering member provides the outer sheath with a tapered distal tip.

12. The assembly of claim 11, wherein the sheath includes an inflation lumen in fluid communication with the bulbous tip.

13. The assembly of claim 12, wherein the bulbous tip is inflatable by infusing an inflation media through the inflation lumen into the bulbous tip.

14. The assembly of claim 12, further comprising a marker member coupled to the sheath.

15. The assembly of claim 14, wherein the marker member is coupled to the sheath by folding a portion of the sheath proximally over the marker member.