Methods of manufacturing medico-surgical tubes
US6673291B1 · kind B1 · utility
23Cited by
17References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2000 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Apr 25, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7542
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An epidural catheter with a soft tip is formed by extruding a two-layer tube where the inner layer is stiffer than the outer layer. The inner layer is then removed, such as by machining, from a short length at the tip, which is subsequently end-formed closed and a side opening cut into it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.