Method for fitting an implant to a catheter

• US 10,182,910 B2
• Filed: 10/07/2014
• Issued: 01/22/2019
• 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: Jahn, Andreas, Hofmann, Eugen, Hepke, Markus
• Primary Examiner(s): Walters, Ryan J
• Assistant Examiner(s): Averick, Lawrence
• Application Number:
  US14/508,120
• Publication Number:
  US 20150107078A1
• Time in Patent Office: 1,568 Days
• Field of Search: 29255, 29270, 29272, 29515, 29516
• 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 of compressing an intraluminal implant for fitting to a catheter shaft, the method comprising:

providing at least two components, each component comprising a rationally symmetrical space tapered along a longitudinal axis of symmetry,

wherein the at least two components are tapered in opposite directions;

positioning an intraluminal implant longitudinally within either of the spaces,

wherein the implant is an artificial valve comprising a self-expanding main body or a self-expanding stent; and

moving the at least two components into one another along the longitudinal axis in such a way that a space enclosed jointly by the least two components reduces while also flowing a fluid through the implant along the longitudinal axis thereby reducing the diameter of the implant.

2. The method as claimed in claim 1, wherein the rationally symmetrical space tapering along the axis of symmetry is a cone.

3. The method as claimed in claim 2, wherein conical spaces move into one another in such a way that the space enclosed by the least two components becomes increasingly smaller.

4. The method of claim 1, wherein a first of the at least two components comprises a plurality of recesses and a second of the at least two components comprises longitudinally extending finger shapings that fit longitudinally through the recesses during the movement.

5. A method of compressing an intraluminal implant for fitting to a catheter, the method comprising:

providing at least two components, each component comprising a rotationally symmetrical space tapered in opposite directions along a longitudinal axis of symmetry;

positioning an intraluminal implant longitudinally within either of the spaces, wherein the implant is an artificial valve comprising a self-expanding main body or a self-expanding stent; and

moving the at least two components into one another along the longitudinal axis in such a way that a space enclosed jointly by the at least two components reduces while also flowing a fluid through the implant along the longitudinal axis thereby reducing the diameter of the implant;

wherein at least one component has a mandrel which is oriented centrally in the space enclosed by the component in such a way the valves of the artificial heart valve rest against the mandrel during the movement of the at least two components into one another.