System and method of automatic detection and prevention of motor runaway
US9825455B2 · kind B2 · utility
1,026Cited by
13References
15Claims
0Family size
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Key dates
| Filing date | May 21, 2014 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Sep 28, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/301
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A robotic catheter control system includes a plurality of electric motors. Diagnostic logic automatically detects motor runaway fault conditions based on the current motor position, the target motor position and a predetermined tolerance parameter. Fault conditions include overshoot, movement in the a non-prescribed direction, exceeding a prescribed maximum motor speed and exceeding a prescribed maximum motor acceleration. The diagnostic logic terminates operating power to the electric motor when a fault condition is detected for any one of the motor. An error message is generated to notify the operator of the fault.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.