Multiple additive valve assembly
US4246932A · kind A · utility
107Cited by
10References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 18, 1979 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Oct 18, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7838
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A multiple valve assembly for use in the medical field includes a pair of flexible valve discs which are essentially co-planar with each other. A pair of tube connectors are oriented to be at an essentially right angle with respect to each other, and fluid communication between the interior of a hollow body and the tube connectors is controlled by the valve discs. An aspiration procedure has one valve disc in an open position and the other valve disc in an occluding position, and an injection procedure reverses the positions of the valve discs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.