Apparatuses and methods for providing radiopaque medical balloons

Patent metadata

Field	Value
Publication number	US-10869994-B2
Application number	US-201414915064-A
Country	US
Kind code	B2
Filing date	Aug 28, 2014
Priority date	Aug 28, 2013
Publication date	Dec 22, 2020
Grant date	Dec 22, 2020

Abstract

A medical balloon is provided for which the working surface may be identified during an interventional procedure with enhanced precision. Related methods of manufacturing such a balloon are also disclosed.

First claim

The invention claimed is:

1. A method of providing a medical balloon or a parison for forming a medical balloon with a radiopaque portion, comprising:
inserting a mandrel and a radiopaque material into the medical balloon or the parison; and
expanding the mandrel.

2. The method of claim 1 , wherein the radiopaque material comprises a film inserted into the parison prior to the inserting of the mandrel.

3. The method of claim 1 , further including the step of removing the mandrel after the expanding step.

4. The method of claim 3 , wherein the mandrel is adapted to deposit the radiopaque material on an interior surface of the medical balloon or parison during the expanding step.

5. The method of claim 1 , wherein the mandrel is partially flexible.

6. The method of claim 1 , wherein the mandrel comprises expandable interwoven struts.

7. The method of claim 1 , wherein the mandrel comprises a compliant balloon.

8. The method of claim 1 , further including the step of blow molding the parison to form a medical balloon after the expanding step.

9. The method of claim 1 , further including the step of applying a solution including the radiopaque material to the mandrel prior to the inserting step.

10. The method of claim 1 , further including the step of expanding the parison to form the medical balloon prior to the inserting and expanding steps.

11. The method of claim 1 , wherein the radiopaque material comprises one or more radiopaque fibers associated with the mandrel, and the step of expanding the mandrel is completed to associate the radiopaque fibers with the parison or the medical balloon.

12. The method of claim 1 , wherein the radiopaque material comprises one or more radiopaque fibers, and the method comprises adhesively attaching the fibers to an interior surface of the parison or the medical balloon.

13. The method of claim 1 , wherein the radiopaque material comprises one or more radiopaque fibers, and the method comprises adhesively attaching the fibers to the parison or the medical balloon.

14. The method of claim 1 , wherein the radiopaque material comprises a lattice.

15. A method of providing a medical balloon or a parison for forming a medical balloon with a radiopaque portion, comprising:
inserting an inflatable mandrel and a radiopaque material into the medical balloon or the parison; and
expanding the mandrel.

16. The method of claim 14 , further including the step of blow molding the parison to form a medical balloon after the expanding step.

17. The method of claim 14 , wherein the mandrel comprises expandable interwoven struts.

18. The method of claim 14 , wherein the mandrel comprises a compliant balloon.

19. A method of providing a medical balloon, comprising:
inserting an inflatable mandrel and a radiopaque material into a parison;
expanding the mandrel; and
blow molding the parison into the medical balloon.

20. The method of claim 19 , wherein the mandrel is inflatable.

Assignees

• Clearstream Tech Ltd
• Do Hiep
• Schaffer Andrew

Inventors

• Do Hiep
• Schaffer Andrew
• Fillmore Paul

Classifications

• B29C49/04114 Primary

  for keeping constant thickness · CPC title

• B29L2031/7543

  Balloon catheters · CPC title

• B29C51/008

  without using a mould, e.g. ballooning (as prestretching step B29C51/06) · CPC title

• A61M2025/1079

  having radio-opaque markers in the region of the balloon · CPC title

• A61M25/1029 Primary

  Production methods of the balloon members, e.g. blow-moulding, extruding, deposition or by wrapping a plurality of layers of balloon material around a mandril · CPC title