Device for diagnosis with radioactive isotopes
Abstract
Abstract An apparatus for isotope diagnosis has a measuring device for determining the distribution of radioactive substances in a body from rays emitted by these substances. The device includes an element sensitive to these rays and located in a housing made of a material which does not transmit the rays. The ray-sensitive element has a surface receiving the rays and covered by a collimator which can be pushed into the housing. One collimator may be exchanged for other collimators of different lengths, the length of the housing being at least equal to that of the longest collimator plus the length of the ray-sensitive element. The invention is particularly characterized in that the ray-sensitive element is also movable in the direction of the longitudinal axis of the housing. The ray-sensitive element and the collimator are joined and the surface of the collimator which receives the incoming rays is located in an opening of the screening housing.
Inventors
- 👤 Rudolf Prag
- 👤 Edgar Tschunt
Bibliographic Details
Claims Analysis
Total Claims: 1References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |