Profile altering tip for a delivery system

• US 9,381,083 B2
• Filed: 04/11/2014
• Issued: 07/05/2016
• Est. Priority Date: 04/11/2014
• Status: Active Grant

• Current Assignee: Medtronic Vascular Galway Limited (Medtronic Plc)
• Original Assignee: Medtronic Vascular Galway Limited (Medtronic Plc)
• Inventors: Costello, Declan
• Primary Examiner(s): Eastwood, David C
• Assistant Examiner(s): MANNAN, MIKAIL A
• Application Number:
  US14/250,664
• Publication Number:
  US 20150289975A1
• Time in Patent Office: 816 Days
• Field of Search: 606/151
• US Class Current: 1/1
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath

Abstract

A profile altering tip is provided for a delivery system. The tip defines a first profile with a generally conical shape and a second profile with a generally round shape. During use of the delivery system, a tip profile control assembly can alter the tip from the first profile to the second profile.

Claims

1. A device component for a prosthetic heart valve delivery system, the component comprising:

an elongate member extending from a proximal end to a distal end;

a tip coupled with the distal end of the elongate member and transitioning, in response to an axially applied force applied to the elongate member, from a first, conical profile to a second, rounded profile;

an adjustment member coupled with the distal end of the elongate member within the tip forming a tip end, the adjustment member transitioning, in response to an axially applied force applied to the elongate member, from a first, conical profile to a second, compressed generally cylindrical profile

wherein the device component is configured such that the tip end deforms with transitioning between the first and second profiles.

2. The device component of claim 1, wherein the tip is formed of a polymeric material, the first profile defining a natural arrangement of the polymeric material and the second profile defining a compressed arrangement for the polymeric material.

3. The device component of claim 1, wherein the tip includes a base end and the tip end is opposite the base end, said device component is configured such that the axially applied force moves the tip end toward the base end.

4. The device component of claim 1, wherein the tip defines a central lumen receiving the elongate member.

5. The device component of claim 1, wherein the tip defines a base end and the tip end is opposite the base end, the first profile defines a first width defined by a maximum distance of the tip orthogonal to a length of the tip from the base end to the tip end, the second profile defining a second width defined by a maximum distance of the tip orthogonal to the length of the tip that is greater than the first width.

6. The device component of claim 1, wherein the tip defines a length extending from a base end to the tip end opposite the base end, the length of the tip in the first profile being greater than the length of the tip in the second profile.

7. The device component of claim 1, further comprising a fixed member coupled to a base end of the tip and the adjustment member coupled to the tip end of the tip opposite the base end, said axially applied force causing movement of the adjustment member relative to the fixed member.

8. The device component of claim 7, wherein the tip defines a central lumen and a distal end recess, the elongate member received within the central lumen and the adjustment member seated within the distal end recess.

9. The device component of claim 7, wherein the device component is configured such that a shape of the adjustment member in the first profile differs from a shape of the adjustment member in the second profile.

10. The device component of claim 7, wherein the adjustment member is a solid body that fills the distal end recess and closes the distal end of the tip.