Method of producing a medical implantable device and medical implantable device
A method for producing a connection between two components of a medical implant which preferably are composed of different materials which cannot be welded to one another is described. Furthermore, a medical implant which is produced according to the method is described. Moreover, the medical implant comprises an connection interface whereon said medical implant is detachable from an introduction wire or introduction implement.
1. An implantable medical device comprising a bundle of strands, said device comprising a welded end portion configured as a connection interface and an external element coupled to said connection interface in a non-clamped manner, and wherein:
said welded end portion has defined proportions and dimensions,
said connection interface comprises a sleeve positioned around said bundle of strands at said welded end portion,
said sleeve is made of the same material as said bundle of strands at said end portion,
said sleeve is at least partly fused to said welded end portion, and
said external element is coupled to said connection interface outside and over said welded end.
2. The medical implantable device according to claim 1 , wherein said external element is fastened to said connection interface in a permanent, non-positive connection.
3. The medical implantable device according to claim 1 , wherein said external element is fastened to said connection interface in a temporary, releasable connection.
4. The medical implantable device according to claim 1 , wherein said external element is a delivery adapter.
5. The medical implantable device according to claim 4 , wherein said delivery adapter is a steel sleeve non-positively fit to said connection interface, and wherein said strands are made of a nickel titanium alloy.
6. The medical implantable device according to claim 5 , wherein said steel sleeve comprises an engagement surface for a delivery device.
7. The medical implantable device according to claim 6 , wherein said engagement surface is a threaded surface.
8. The medical implantable device according to claim 1 , wherein said strands and said external element are of different materials.
9. The medical implantable device according to claim 8 , wherein said different materials have different radiopacity.
10. The medical implantable device according to claim 1 , wherein said connection interface is asymmetric in rotational direction of said bundle.
11. The medical implantable device according to claim 1 , wherein said connection interface is asymmetric in longitudinal direction of said bundle.
12. The medical implantable device according to claim 1 , wherein said connection interface comprises at least one protrusion and/or recess.
13. The device of claim 1 , wherein at least a portion of said connection interface is provided by an external surface of said sleeve.
14. The device of claim 13 , wherein said external surface of said sleeve has an outer diameter that provides a defined dimension of the welded end portion.
15. The device of claim 1 , wherein said bundle of strands and said sleeve are made of a metal.