Scanning endoscope apparatus with drive signal correction
US9974432B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2016 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Jan 12, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/0669
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A scanning endoscope apparatus includes: a light source unit; an illumination fiber inserted inside an insertion portion of an endoscope, the illumination fiber being configured to guide illuminating light from a proximal end to a distal end; an actuator configured to drive the distal end of the optical fiber so that the illuminating light outputted from the illumination fiber is scanned on a subject; a memory configured to store correlation coefficient information on a correlation coefficient between a drive signal for driving the actuator and a displacement amount of the actuator; and a controller, and the controller detects a current of the drive signal for driving the actuator and corrects the drive signal for driving the actuator based on the correlation coefficient information and a value of the detected current so that the displacement amount of the actuator becomes a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.