Arrays for delivering tumor treating fields (TTFields) with selectively addressable sub-elements
US11395916B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2019 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Dec 24, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Tumor treating fields (TTFields) can be delivered to a subject's body at higher field strengths by switching off one or more electrode elements that are overheating without switching off other electrode elements that are not overheating. This may be accomplished using a plurality of temperature sensors, with each of the temperature sensors positioned to sense the temperature at a respective electrode element; and a plurality of electrically controlled switches, each of which is wired to switch the current to an individual electrode element on or off. A controller input signals from the temperature sensors to determine the temperature at each of the electrode elements, and controls the state of the control input of each of the electrically controlled switches to selectively switch off the current or adjusted the duty cycle at any electrode element that is overheating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.