METHOD FOR FITTING AN IMPLANT TO A CATHETER

• US 20150107078A1
• Filed: 10/07/2014
• Published: 04/23/2015
• Est. Priority Date: 10/23/2013
• Status: Active Grant

• Current Assignee: Biotronik AG (Biotronik SE & Company KG)
• Original Assignee: Biotronik AG (Biotronik SE & Company KG)
• Inventors: Hofmann, Eugen, Hepke, Markus, Jahn, Andreas
• Granted Patent: US 10,182,910 B2
• Time in Patent Office: Days
• US Class Current: 29/428
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• CPC Class Codes: A61F 2/9526 using a mandrel
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/53 Means to assemble or disassemble

Abstract

A system and a method for crimping a heart valve prosthesis onto a catheter shaft. The system comprises two components (1, 2) which receive the heart valve prosthesis (12) and are inserted into one another in the direction (14) in order to crimp the heart valve prosthesis (12).

Claims

1. A method for fitting an intraluminal implant to a catheter shaft, wherein the diameter of the implant is reduced by a relative movement of at least two components, which each at least partially enclose a rotationally symmetrical space tapering along the axis of symmetry thereof in one direction, characterized in that

the at least two components are moved toward one another and into one another along the longitudinal axis of the implant in such a way that the space enclosed jointly by the at least two components reduces,

wherein the implant is located in the space enclosed jointly by the at least two components and is oriented in such a way that the longitudinal axis of the implant and the axes of symmetry of the rotationally symmetrical spaces are superimposed.

2. The method as claimed in claim 1, characterized in that the implant is an artificial heart valve comprising a self-expanding main body or a self-expanding stent.

3. The method as claimed in claim 1, characterized in that the rotationally symmetrical space tapering along the axis of symmetry is a cone.

4. The method as claimed in claim 3, characterized in that conical spaces move into one another in such a way that the space enclosed by the at least two components becomes increasingly smaller.

5. The method as claimed in claim 1, characterized in that a volume flow is applied along the longitudinal axis of the implant, at least during the movement of the at least two components toward one another and into one another.

6. The method as claimed in claim 1, characterized in that at least one component has a mandrel, which is oriented centrally in the space enclosed by the component in such a way that it is arranged over the longitudinal axis of the implant during the movement of the at least two components toward one another and into one another.

7. A system for fitting an implant to a catheter shaft, comprising at least two components, each of which at least partially encloses a rotationally symmetrical space tapering along the axis of symmetry, characterized in that at least one of the components at the tapered end of the enclosed rotationally symmetrical space has an opening, which is suitable for a catheter shaft to be passed through.

8. The system as claimed in claim 7, characterized in that the rotationally symmetrical space tapering along the axis of symmetry in one direction is a cone.

9. The system as claimed in claim 8, characterized in that at least one or two components enclose a space that is formed by a cone and a cylinder.

10. The system as claimed in claim 7, characterized in that each of the at least two components has recesses in which the respective other component(s) can engage.

11. The system as claimed claim 7, characterized in that at least one component has a stop for the catheter shaft.

12. The system as claimed in claim 7, characterized in that at least one component has a receptacle for the implant.

13. The system as claimed in claim 7, characterized in that at least one component has a mandrel, which is oriented centrally in the space enclosed by the component and is arranged over the axis of symmetry of the rotationally symmetrical space.