Catheter having fibrous reinforcement and method of making the same
US7445684B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Dec 11, 2003 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Oct 2, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0053
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter having a fibrous reinforcement is formed by anchoring a filament at a proximal end of a core member, and winding the filament onto the core member continuously from the proximal end to the distal end of the core member and then back to the proximal end to form a first fibrous layer. The filament is wound with a constant or variable pitch along the length of the core member. Additional fibrous layers can be applied by continuously winding a filament over the first fibrous layer from the proximal end to the distal end or to an intermediate position along the core member and then back to the proximal end. The additional layers can extend to different distal positions to form a catheter having a tapering profile. In alternative embodiments, catheters are formed by winding a group of filaments onto the core member simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.