Flow valve position sensor for an electrosurgical device
US12042212B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2021 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Oct 26, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/6054
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A handpiece for a surgical instrument having a valve position sensing circuit arranged to detect the position of a valve arranged to control the flow of fluid through the suction lumen of the instrument. The distal end of the handpiece is arranged to couple to a cutting accessory. The handpiece comprises: a housing; a suction lumen within the housing extending from the distal end of the handpiece to a proximal end of the handpiece; a valve arranged to control the flow of fluid through the suction lumen; and a valve position sensing circuit arranged to detect a position of the valve. The valve position sensing circuit can be used to alert a surgeon if the valve is closed when it would be preferable for it to be open. For example, if the motor is overheating, the in-joint temperature is too high, or the RF component is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.