Profile altering tip for a delivery system

• US 10,413,410 B2
• Filed: 10/23/2014
• Issued: 09/17/2019
• Est. Priority Date: 04/11/2014
• Status: Active Grant

• Current Assignee: Medtronic Vascular Galway Limited (Medtronic Plc)
• Original Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Inventors: Costello, Declan, McGowan Smyth, Deirdre
• Primary Examiner(s): Rosen, Eric J
• Assistant Examiner(s): Mannan, Mikail A
• Application Number:
  US14/521,936
• Publication Number:
  US 20150289971A1
• Time in Patent Office: 1,790 Days
• 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 an expanded profile. 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:

a tip;

a plurality of arms moveable relative to the tip; and

an assembly for each of the plurality of arms;

wherein each assembly comprises an elongate member extending from a proximal end to a distal end,

a fixed member coupled with a base end of the tip, and an adjustment member coupled with the distal end of the elongate member, wherein the respective arm is further movably connected to the fixed member, wherein the device component is configured such that in response to an axially applied force applied to the elongate members, the tip transitions from a first, conical profile to a second, expanded profile, wherein a radial spacing between a proximal end of the respective arm and the respective elongate member in the second, expanded profile is greater than the radial spacing in the first, conical profile;

wherein for each of the assemblies a distance between the fixed member and a distal end of the respective arm varies in the expanded profile as compared to the conical profile.

2. The device component of claim 1, wherein the tip defines a lumen receiving the elongate members.

3. The device component of claim 1, wherein 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 a tip end opposite the base 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.

4. The device component of claim 3, wherein the second width is at least two times as great as the first width.

5. The device component of claim 1, wherein the device component is configured such that the axially applied force causes movement of each adjustment member relative to each fixed member.

6. The device component of claim 5, wherein each adjustment member is coupled with a tip end of the tip.

7. The device component of claim 1, wherein the device component is configured such that the axially applied force causes movement of each arm relative to the respective fixed member.

8. The device component of claim 7, wherein the each fixed member forms a pin that communicates with a slot of the respective arm.

9. The device component of claim 1, wherein each arm is positioned at a first angle relative to a central axis of the tip in the first profile and a second angle relative to the central axis of the tip in the second profile.

10. The device component of claim 9, wherein each arm in the second profile is orthogonal to the central axis.

11. The device component of claim 1, wherein the base end extends radially outwardly from the central axis.

12. The device component of claim 1, wherein each fixed member engages a respective one of the arms and the base end.

13. The device component of claim 1, wherein the elongate members are distal with respect to the arms in both the expanded profile and the conical profile.

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

a tip;

a plurality of arms moveable relative to the tip; and

an assembly for each of the plurality of arms;

wherein each assembly comprises an elongate member extending from a proximal end to a distal end,

a fixed member coupled with a base end of the tip, and an adjustment member coupled with the distal end of the elongate member, wherein the respective arm is further movably connected to the fixed member, wherein the device component is configured such that in response to an axially applied force applied to the elongate members, the tip transitions from a first, conical profile to a second, expanded profile, wherein a radial spacing between a proximal end of the respective arm and the respective elongate member in the second, expanded profile is greater than the radial spacing in the first, conical profile;

wherein for each of the assemblies, a longitudinal position of the fixed member with respect to the respective arm is variable as the tip transitions from the first, conical profile to the second, expanded profile;

wherein the device component is configured such that, for each of the assemblies, the axially applied force causes movement of the respective arm relative to the respective fixed member;

wherein, for each of the assemblies, the fixed member forms a pin that communicates with a slot of the respective arm; and

wherein the fixed member can translate along a length of the slot.