Clinical spinner
Abstract
Abstract AN IMPROVED METHOD AND APPARATUS FOR PREPARING BLOOD AND SIMILAR SAMPLES FOR MICROSCOPIC EXAMINATION IN WHICH THE SAMPLE IS DEPOSITED ON A SLIDE AND THE SLIDE IS SPUN AT HIGH SPEED TO THROW OFF THE EXCESS LIQUID AND LEAVE A THIN SMEAR OR FILM. THE SAMPLE IS SHIELDED FROM AIR CURRENTS BY MEANS OF A COVER WHICH FITS OVER THE ROTATING HOLDER TO WHICH THE SAMPLE SLIDE IS CLAMPED. BY SHIELDING THE SAMPLE IT IS PROTECTED FROM AIR BUFFETING WHICH PREVENTS DISTORTION OF THE BLOOD CELLS AND OBVIATES DIAGNOSTIC ERRORS DUE TO CHANGE IN CELL SHAPE. AFTER THE CELLS SPREAD IN A UNIFORM LAYER, IT IS IMPORTANT TO ARREST ROTATION OF THE SLIDE TO PREVENT EXCESS DRYING OF THE SMEAR, WHICH ALSO RESULTS IN DISTORTION OF THE CELL SHAPE.
Inventors
- 👤 John J J Staunton
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |