Multi-cord fusing manufacturing process for catheter members
US6258195A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1999 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Mar 19, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7542
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Medical tubing having a wall formed of multiple strands bonded together. One method for making the tubing utilizes multiple spools containing polymeric strands disposed about a central mandrel, with the strands aligned with and disposed evenly about the mandrel, with both mandrel and strands entering a die or other bonding device. Adjacent strands are bonded together to form a tube wall, the tube preferably having at least one lumen therethrough. Adjacent strands are lightly bonded in some embodiments and highly bonded in others. Bonding can be accomplished using heat, solvent welding, or adhesive. The strands making up the tube wall can be formed of materials differing between strands. One use of the tubing is for constructing angioplasty catheters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.