Control module for a motorized surgical tool, the module including a trigger sensor, a motor rotor sensor and a control circuit that are sealed from the ambient environment
US9559624B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2014 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Jul 3, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F35/332
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A control module for a motorized powered surgical tool. The module includes a trigger sensor, a motor rotor position sensor and control circuit. The trigger sensor and motor rotor position sensor output their signals by monitoring magnetic fields associated with, respectively the trigger and the motor rotor. Based on signals from the trigger sensor and the motor rotor position sensor, the control circuit selectively applies energization signals to the windings of the motor. The module includes a shell that separates the trigger sensor, the motor rotor position sensor and the control circuit from the motor. The shell is formed from material that both shields the components within the shell from affects of the ambient environment and that allows the magnetic fields to be detected by the sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.