Valved two-way catheter
US4671796A · kind A · utility
218Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1985 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | Oct 25, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Catheter of soft, flexible material is formed with closed end. Fluid opening formed by single slit through tubing wall of such length that valve will open only upon application of predetermined pressure differentials. Removable stiffener member is positioned in catheter, abutting closed end to push catheter into body vessel when inserting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.