Compensation method for bed surface drop before and after accelerator radiotherapy bed
US12076588B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2020 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Aug 14, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1057
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A compensation method for bed surface drop before and after accelerator radiotherapy bed includes the following contents: the weight G is decomposed into N weights on average, the length L is decomposed into M positions on average, and then an experiment is carried out. The drop matrix HN×M of the couch top is measured by the experiment, by performing cubic spline interpolation on the rows of the matrix HN×M, and then performing cubic spline interpolation on the columns, the resulting cubic spline interpolation matrix SN×N1, M×M1 of HN×M has N*N1 rows and M*M1 columns, and then applies it to practice. The drop amount H obtained by the compensation method for bed surface drop before and after accelerator radiotherapy bed of the present invention is the optimal estimated value with the Least Sum of Square Error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.