Parallel-flow one-way blood sampling device
US4212308A · kind A · utility
69Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1977 |
| Grant date | Jul 15, 1980 |
| Priority date | — |
| Expiry date | Dec 27, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7839
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A blood sampling device having two or more elastomeric one-way valves in parallel configuration. The valves prevent backflow towards the patient, but do not significantly decrease the blood flow from the patient. The valves may be arranged side-by-side within the device, or may alternatively be located one distally from the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.