X-ray and electron radiotherapy clinical treatment machine
US4726046A · kind A · utility
288Cited by
11References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 5, 1985 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Nov 5, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A radiotherapy machine includes a microwave powered accelerator to produce an energetic beam of charged particles, bending and focussing magnets to parallel scan the beam in a plane and collimators to make the resulting parallel scanned beam into paraxial rays of charged particles or X-rays. The beam is intensity modulated as it is scanned to control dosage spatial distribution. The subject is moved perpendicular to the scanning plane in order to treat a 3-dimensional shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.