Slit valve medical catheter
US4973319A · kind A · utility
142Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 1989 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | May 10, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K15/142
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A slit valve medical catheter includes a flexible tube the distal end of which is closed. A length of resilient tubing is mounted coaxially to the distal end segment of the tube so that the tubing extends along the inside or outside surface of the tube. The tubing is slitted lengthwise and an aperture is formed in the tube wall directly opposite each slit with the aperture being wider than the slit so that portions of the tubing wall on opposite sides of each slit overhang the sides of the corresponding aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.