Implant with attached element and method of making such an implant

• US 10,213,327 B2
• Filed: 10/28/2016
• Issued: 02/26/2019
• Est. Priority Date: 08/18/2000
• Status: Expired due to Term

• Current Assignee: Angiomed GmbH & Co. Medizintechnik KG
• Original Assignee: Angiomed GmbH & Co. Medizintechnik KG
• Inventors: Supper, Wolfgang, Gamer, Walter
• Primary Examiner(s): Prone, Christopher D
• Application Number:
  US15/337,448
• Publication Number:
  US 20170042709A1
• Time in Patent Office: 851 Days
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2002/91508 the meander having a difference in amplitude along the band
• CPC Class Codes: A61F 2002/91525 within the whole structure different bands showing different meander characteristics, e.g. frequency or amplitude
• CPC Class Codes: A61F 2002/91541 Adjacent bands are arranged out of phase
• CPC Class Codes: A61F 2002/91558 connected peak to peak
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61F 2250/0039 differing in diameter
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61L 31/022 Metals or alloys
• CPC Class Codes: A61L 31/18 Materials at least partially X-ray or laser opaque

Abstract

A stent having an axial end to which is attached a ring of spoons of a material different from that of the stent. In one aspect, the ring of spoons is connected to the axial end through a plurality of complementary male-female form-fitting portions. In one aspect, the ring of spoons include parallel straight side edges. In one aspect, each of the side edges lies within a first distance from a facing side edge of an adjacent spoon in a stent delivery configuration, and each of the side edges lies within a second distance, greater than the first distance, from the facing side edge of an adjacent spoon in a stent deployed configuration.

Claims

1. A method of making a medical device, comprising:

providing an implant defining a longitudinal axis and a terminal end, the implant comprising a plurality of marker carriers disposed at the terminal end;

providing a tube comprising a radiopaque metal, the tube including;

a body portion including an uninterrupted tubular wall defining a lumen;

a ring of spoons, each spoon of the ring of spoons comprising an internal cavity; and

a plurality of bridges connecting the ring of spoons to the body portion, each spoon connected to one of the plurality of bridges, each bridge of the plurality of bridges having a width less than a width of each spoon;

mounting the implant and the tube on separate cores;

aligning each marker carrier of the plurality of marker carriers with the internal cavity of each spoon of the ring of spoons; and

joining the plurality of marker carriers with the ring of spoons, comprising abutting a peripheral surface of each spoon against an exterior surface of a respective marker carrier, wherein each of the peripheral surface and the exterior surface have a complementary taper in a direction across a thickness thereof.

2. The method of making a medical device according to claim 1, wherein the radiopaque metal comprises tantalum.

3. The method of making a medical device according to claim 1, wherein the joining step comprises welding the ring of spoons to the plurality of marker carriers.

4. The method of making a medical device according to claim 3, further comprising removing the plurality of bridges from the ring of spoons.

5. A method making a medical device, comprising:

providing an implant defining a longitudinal axis and a terminal end and comprising a plurality of marker carriers disposed at the terminal end;

providing a tantalum tube comprising;

a ring of spoons, each spoon of the ring of spoons comprising an internal cavity; and

a plurality of bridges connected to the ring of spoons, each spoon connected to one of the plurality of bridges, each bridge of the plurality of bridges having a width less than a width of each spoon;

mounting the implant and the tantalum tube on separate cores;

aligning each marker carrier of the plurality of marker carriers with the internal cavity of each spoon of the ring of spoons by rotating the cores;

joining the plurality of marker carriers with the ring of spoons by abutting a marker peripheral surface against an exterior surface of the marker carrier wherein abutting surfaces have complementary tapers in a direction across a marker thickness;

welding the ring of spoons to the plurality of marker carriers; and

removing the plurality of bridges from the ring of spoons.

6. A method of making a medical device, comprising:

mounting an implant on a first core, the implant including a plurality of marker carriers;

mounting a tube on a second core, the tube comprising a plurality of spoons connected to a plurality of bridges, the plurality of bridges comprising a first plurality of bridges connecting adjacent spoons of the plurality of spoons and a second plurality of bridges connecting the plurality of spoons to a body portion of the tube, each spoon of the plurality of spoons comprising an internal cavity;

aligning each marker carrier of the plurality of marker carriers with the internal cavity of each spoon of the plurality of spoons;

joining the plurality of marker carriers with the plurality of spoons; and

removing the plurality of bridges from the plurality of spoons, comprising removing both the first plurality of bridges and the second plurality of bridges from the plurality of spoons.

7. The method of making a medical device according to claim 6, further comprising positioning a first sleeve over an outer surface of the implant.

8. The method of making a medical device according to claim 7, further comprising positioning a second sleeve over an outer surface of the tube.

9. The method of making a medical device according to claim 8, wherein positioning the first sleeve over the outer surface of the implant comprises leaving the plurality of marker carriers uncovered, and wherein positioning the second sleeve over the outer surface of the tube comprises leaving the plurality of spoons uncovered.

10. A method of making a medical device, comprising:

providing an implant defining a longitudinal axis and a terminal end, the implant comprising a plurality of marker carriers disposed at the terminal end;

providing a tube comprising tantulum, the tube including;

a body portion including an uninterrupted tubular wall defining a lumen;

a ring of spoons, each spoon of the ring of spoons comprising an internal cavity; and

a plurality of bridges connecting the ring of spoons to the body portion, each spoon connected to one of the plurality of bridges, each bridge of the plurality of bridges having a width less than a width of each spoon;

mounting the implant and the tube on a single core;

aligning each marker carrier of the plurality of marker carriers with the internal cavity of each spoon of the ring of spoons; and

joining the plurality of marker carriers with the ring of spoons, comprising abutting a peripheral surface of each spoon against an exterior surface of a respective marker carrier, wherein each of the peripheral surface and the exterior surface have a complementary taper in a direction across a thickness thereof.

11. The method of making a medical device according to claim 10, wherein the joining step comprises welding the ring of spoons to the plurality of marker carriers.

12. The method of making a medical device according to claim 11, further comprising removing the plurality of bridges from the ring of spoons.

13. A method of making a medical device, comprising:

providing an implant defining a longitudinal axis and a terminal end, the implant comprising a plurality of marker carriers disposed at the terminal end;

providing a tube comprising a radiopaque metal, the tube including;

a body portion including an uninterrupted tubular wall defining a lumen;

a ring of spoons, each spoon of the ring of spoons comprising an internal cavity; and

a plurality of bridges connecting the ring of spoons to the body portion, each spoon connected to one of the plurality of bridges, each bridge of the plurality of bridges having a width less than a width of each spoon;

mounting the implant and the tube on separate cores;

aligning each marker carrier of the plurality of marker carriers with the internal cavity of each spoon of the ring of spoons, including rotating the cores; and

joining the plurality of marker carriers with the ring of spoons, comprising abutting a peripheral surface of each spoon against an exterior surface of a respective marker carrier, wherein each of the peripheral surface and the exterior surface have a complementary taper in a direction across a thickness thereof.

14. The method of making a medical device according to claim 13, wherein the joining step comprises welding the ring of spoons to the plurality of marker carriers.

15. The method of making a medical device according to claim 14, further comprising removing the plurality of bridges from the ring of spoons.

16. A method of making a medical device, comprising:

mounting an implant on a first core, the implant including a plurality of marker carriers;

positioning a first sleeve over an outer surface of the implant;

mounting a tube on a second core, the tube comprising a plurality of spoons connected to a plurality of bridges, each spoon of the plurality of spoons comprising an internal cavity;

aligning each marker carrier of the plurality of marker carriers with the internal cavity of each spoon of the plurality of spoons;

joining the plurality of marker carriers with the plurality of spoons; and

removing the plurality of bridges from the plurality of spoons.

17. The method of making a medical device according to claim 16, further comprising positioning a second sleeve over an outer surface of the tube.

18. The method of making a medical device according to claim 17, wherein positioning the first sleeve over the outer surface of the implant comprises leaving the plurality of marker carriers uncovered, and wherein positioning the second sleeve over the outer surface of the tube comprises leaving the plurality of spoons uncovered.