Crimping device

Patent metadata

Field	Value
Publication number	US-11638644-B2
Application number	US-202117175004-A
Country	US
Kind code	B2
Filing date	Feb 12, 2021
Priority date	Jul 27, 2011
Publication date	May 2, 2023
Grant date	May 2, 2023

Abstract

A crimping system for a prosthetic heart valve comprises a split funnel comprising an elongated annular body having an enlarged insertion end, a narrower outlet end, and a central opening extending along a central longitudinal axis of the split funnel, between the insertion end and the outlet end. The body comprises first and second slots extending axially along opposite sides of the body from the outlet end toward the insertion end, the first and second slots defining first and second split portions of the body extending circumferentially between the first and second slots on opposite sides of the central opening. The crimping device is configured to crimp a prosthetic heart valve moving axially through the central opening from the insertion end to the outlet end while allowing portions of the prosthetic heart valve to protrude through the first and second slots and remain in an expanded configuration.

First claim

We claim:

1. A crimping device for crimping a prosthetic heart valve, comprising:
an annular body;
an insertion end;
an outlet end;
first and second slots;
first and second split portions;
a central opening; and
a central longitudinal axis, wherein:
the annular body extends from the insertion end toward the outlet end,
the insertion end comprises an inner diameter that is larger than an inner diameter of the outlet end,
the first and second slots extend axially from the outlet end to the annular body and define the first and second split portions,
the central opening extends axially from the insertion end to the outlet end and extends radially outwardly from the central longitudinal axis to an inner surface of the annular body for a first region and from the central longitudinal axis to an inner surface of the first and second split portions at a second region, and
the crimping device is configured to move a first portion of a prosthetic heart valve from an expanded configuration to a compressed when the prosthetic heart valve moves axially through the central opening from the insertion end to the outlet end, while allowing one or more second portions of the prosthetic heart valve to protrude radially outwardly through the first and second slots and remain in the expanded configuration.

2. The crimping device of claim 1 , wherein the annular body comprises a first tapered portion disposed adjacent to the insertion end and a first cylindrical portion extending from the first tapered portion toward the outlet end.

3. The crimping device of claim 2 , wherein the first and second slots extend from the outlet end and to the first cylindrical portion.

4. The crimping device of claim 2 , wherein the first and second split portions comprise a second cylindrical portion disposed adjacent to the outlet end and a second tapered portion disposed between the first and second cylindrical portions.

5. The crimping device of claim 1 , wherein the first and second slots each comprise an enlarged end portion that is disposed adjacent the annular body and opposite from the outlet end.

6. The crimping device of claim 5 , wherein each of the first and second slots decreases in width moving from the enlarged end portion toward the outlet end.

7. The crimping device of claim 1 , wherein the first and second slots are configured to allow one or more anchor portions of the prosthetic heart valve to protrude outside of the central opening while a frame of the prosthetic heart valve is reduced in diameter as it moves along the first and second split portions, through the central opening, and toward the outlet end.

8. The crimping device of claim 1 , further comprising a stand coupled to the annular body and the first and second split portions.

9. A crimping device for crimping a prosthetic heart valve, comprising:
a split funnel comprising an annular portion and one or more split portions, the one or more split portions defined by one or more longitudinal slots extending along a length of the one or more split portions, inner surfaces of the annular portion and the one or more split portions defining a central opening configured to receive a prosthetic heart valve therethrough, the central opening decreasing in diameter along a length of the split funnel from a larger diameter at an insertion end of the split funnel to a narrower diameter at an outlet end of the split funnel,
wherein the annular portion comprises a cylindrical first region disposed proximate to the insertion end, and wherein the one or more split portions comprise a second region that decreases in diameter and a cylindrical third region disposed adjacent to the outlet end, wherein the second region is disposed between the first region and third region, and wherein a diameter of the first region is larger than a diameter of the third region.

10. The crimping device of claim 9 , wherein the one or more slots extend from the outlet end of the split funnel to the annular portion, and the annular portion extends from the one or more split portions to the insertion end.

11. The crimping device of claim 10 , wherein each slot of the one or more slots includes a wider end portion that is closed and a narrower end portion that is open, the narrower end portion disposed at the outlet end of the split funnel.

12. The crimping device of claim 11 , wherein each slot decreases in width from the wider end portion to the narrower end portion.

13. The crimping device of claim 11 , wherein the wider end portion is disposed adjacent to the first region of the annular portion and is configured to receive an anchor of a prosthetic heart valve therethrough, such that the anchor extends outside the split funnel and remains in an expanded configuration as a remainder of the prosthetic heart valve decreases in diameter as it moves through the central opening, and toward the outlet end of the split funnel.

14. The crimping device of claim 9 , wherein the annular portion further includes a fourth region that narrows in diameter from the insertion end of the split funnel to the first region of the annular portion.

15. The crimping device of claim 9 , wherein the one or more slots includes two slots disposed opposite one another and defining two split portions.

16. An assembly comprising:
a prosthetic heart valve comprising a stent frame and two anchors extending outward from the stent frame; and
a crimping device comprising a split funnel comprising an annular portion and first and second split portions defined by first and second longitudinal slots extending along a length of the first and second split portions, inner surfaces of the annular portion and first and second split portions defining a central opening configured to receive the prosthetic heart valve therethrough, the central opening decreasing in diameter along a length of the split funnel from a larger diameter at a first end of the split funnel to a narrower diameter at an opposite, second end of the split funnel, wherein the first and second slots are configured to receive the anchors therethrough such that the anchors extend outside the first and second split portions and remain in an expanded configuration as the prosthetic heart valve is moved through the central opening, toward the second end of the split funnel, and a diameter of the stent frame is decreased.

17. The assembly of claim 16 , wherein the annular portion comprises a cylindrical first region, and the first and second split portions comprise a tapered second region and a cylindrical third region, the second region disposed between the first region and third region and decreasing in diameter along its length, from the first region to the third region.

18. The assembly of claim 17 , wherein the annular portion further comprises a tapered fourth region extending between and decreasing in diameter from the first end of the split funnel to the first region.

19. The assembly of claim 18 , wherein the prosthetic heart valve further comprises an atrial sealing member extending outward from an end of the stent frame and wherein the fourth region is configured to engage the atrial sealing member and move the atrial sealing member from a radial outward orientation to an axially extending orientation as the prosthetic heart valve is moved through the fourth region and into the first region.

20. The assembly of claim 16 , wherein each slot of the first and second slots narrows from an enlarged end portion of the slot that is disposed closer to the first end than the second end of t

Assignees

• Edwards Lifesciences Corp

Inventors

• Taft Robert C
• Oba Travis Zenyo

Classifications

• A61F2/2433

  using balloon catheter · CPC title

• A61F2230/0067

  conical · CPC title

• A61F2/9522

  Means for mounting a stent or stent-graft onto or into a placement instrument · CPC title

• A61F2/958

  Inflatable balloons for placing stents or stent-grafts · CPC title

• A61F2/95

  Instruments specially adapted for placement or removal of stents or stent-grafts · CPC title