Valved two-way catheter
US4701166A · kind A · utility
269Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1986 |
| Grant date | Oct 20, 1987 |
| Priority date | — |
| Expiry date | Oct 2, 2006 |
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.