Fused flexible tip catheter
US4563181A · kind A · utility
382Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1983 |
| Grant date | Jan 7, 1986 |
| Priority date | — |
| Expiry date | Feb 18, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0081
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intravascular catheter, such as an angiography catheter, has a tubular body portion formed from a nylon such as nylon-11 which has strength and stiffness characteristics providing excellent torqueability, burst strength, and longitudinal rigidity. A soft tubular tip is fused to the end of the body portion to form a continuous tubular catheter. The soft tip is formed from a blend of the nylon of the body portion with an ester linked polyether-polyamide co-polymer which is soft and rubbery to render the tip soft to avoid injury to a blood vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.