Correcting for unintended motion for ultrasonic eye scans
US9597059B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2013 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Feb 19, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/40
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device and method are disclosed for detecting and correcting unintended eye movements that may occur during an ultrasound scan by monitoring multiple position tracking sensors, examples being but not limited to ultrasound or optical position sensors. These position tracking sensors are in addition to the ultrasound imaging transducer and are in a fixed position on the scan head so as not to move during the scanning operation. These position tracking sensors can continuously monitor the distance to the cornea or other clearly defined anatomical features of the eye such as the posterior pigment layer of the iris during the movement of the scan head assembly and can provide continuous multi-dimensional correction for any unwanted motion of the eye relative to the scan head that may occur during the ultrasound scan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.