Wireless ophthalmic surgical footswitch
US10243557B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2016 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Mar 3, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00973
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is a surgical footswitch, comprising a base, a pedal mounted to the base, and a variable air capacitor mechanically coupled to the pedal, such that movement of the pedal is operative to vary the capacitance of the variable air capacitor. The footswitch further comprises a capacitance-sensing controller circuit electrically connected to the variable air capacitor and configured to measure a capacitance of the variable air capacitor and to produce a control signal based on the measured capacitance, such that the control signal reflects a position of the pedal or a change in the position of the pedal, and a wireless interface electrically connected to the capacitance-sensing controller circuit and configured to wirelessly relay the control signal to a surgical console.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.