Catheter having polymer stiffener rings and method of making the same
US7815975B2 · kind B2 · utility
8Cited by
13References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 2004 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Jun 20, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter and method of making a catheter are disclosed in which the catheter is highly flexible and yet resistant to crushing and kinking. The catheter is made by applying rings of hard polymer material along the tubular shaft as the catheter is manufactured. The catheter thus has a plurality of hard polymer rings formed at spaced locations along its length, and soft segments between the hard polymer rings that allow the catheter to remain very flexible. The hard polymer rings improve the radial strength of the catheter and make the catheter resistant to crushing and kinking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.