Systems for MRI-guided cryosurgery
US7850682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2005 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Jun 2, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/374
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is of systems and methods for MRI-guided cryosurgery. The systems enable a surgeon positioned next to a patient and within an MRI magnetic environment both to monitor progress of a cryosurgical intervention by observing MRI images of the intervention in real time, and to fully control aspects of operation of a cryosurgery apparatus by remotely controlling a fluid supply source positioned external to that magnetic environment, which fluid supply source supplies cryogenic fluids to cryoprobes operable within that magnetic environment, thereby enabling real-time MRI-guided control of a cryoablation process. A preferred embodiment enables calculation and display of borders of an ablation volume surrounding a cooled cryoprobe in real time, and further enables automatic control of elements of a cryoablation procedure, which elements are triggered when shape and position of that calculated ablation volume are found to bear a predefined relationship to the shape and position of a predefined treatment target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.