Biopsy method
Abstract
Abstract THIS PATENT DISCRIBES A NOVEL METHOD OF RAPIDLY PREPARTING TISSUE FOR BIOPIC EXAMINATIONS WHICH PROVIDES FOR THE RAPID PREPARATION OF THINNER TISSUE SECTIONS, SAID METHOD COMPRISING INFILTRATING A FIXED AND DEHYDRATED TISSUE SAMPLE WITH A LIQUID ULTRAVIOLET LIGHT-CURABLE THERMOSETTING RESIN SYSTEM HAVING A CURING THRESHOLD IN THE PRESENCE OF ULTRAVIOLET LIGHT ON THE ORDER OF ONE MINUTE OR LESS, PREFERABLY COMPRISING A POLYESTER CONTAINIG CARBON-TO-CARBON UNSATURATION, AN ETHYLENICALLY UNSATURATED MONOMER POLYMERIZABLE THEREWITH, AND AN ACTIVATOR, AND CURING SAID SAMPLE IN THE PRESENCE OF ULTRAVIOLET LIGHT FOR SEVERAL MINUTES TO FORM A RIGID BLOCK ADAPTED TO YIELD ULTRATHIN SECTIONS. THE METHOD OF THIS INVENTION IS PREFERABLY CONCERNED WITH THE USE OF A THERMOSETTING RESIN SYSTEM WHICH GIVES A CLEAR OR OPTICALLY TRANSPARENT POLYMER WITHIN THE RIGID BLOCK, CAN BE SLICED INTO SECTIONS HAVING A THICKNESS OF AS LITTLE AS 0.2 MICRON IN SMALL SECTIONS AND A CORRESPONDING IMPROVEMENT IN LARGE SECTIONS.
Inventors
- 👤 Leroy Earl Beightol
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |