Filtering unit for medical liquids
Abstract
Abstract A filtering unit for collecting bacteria from blood or other medical liquid onto filter discs which can then be cultured to identify the bacteria. The unit has a rigid reservoir with a top rigidly holding plural filter disc housings in level positions for even filtering. the reservoir is ring-shaped in one embodiment and has a central opening with a depending hollow spike for puncturing a rubber stopper of a blood supply bottle fits into the center opening and supports the reservoirs. Vacuum applied to the reservoir pulls a supernatant liquid above the red cell layer from the bottle, distributes it to the plural filter disc housing for filtering, and then deposits the filtrate into the reservoir.
Inventors
- 👤 F Edwards
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |