Recovery device of gold marker for radiotherapy positioning and using method thereof
US11638595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2021 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Jan 7, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3991
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A gold marker recovery device for radiotherapy positioning and its using method comprises a positioning gold marker and a recovery clamp, the positioning gold marker comprises a gold marker body and an elastic fixed structure, the elastic fixed structure comprises a fixed segment, an extending segment and a spiral segment connected in sequence; the fixed segment is embedded in the gold marker body so that the fixed segment is closely connected with the gold marker body, A magnetic ball is arranged at one end of the gold marker body away from the extending segment; the recovery clamp comprises an operating handle, the rear end of the operating handle is connected with an outer sheath tube in a hollow structure, and the outer sheath tube is connected with a zipper for driving the clamp to open and close.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.