Microinjection apparatus and microinjection method
US7881533B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2006 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Dec 2, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A microinjection apparatus of the present invention includes a needle-position polarity detecting unit that detects a position of the needle in the vertical direction at which a value of a differential aggregate distribution becomes the maximum in the situation in which a shape of the leading edge of the needle at a focal position narrows at the right. Moreover, a differential-average determining unit, based on a differential average of an image near the position detected by the needle-position polarity detecting unit, determines the lowest allowable position of the needle, which is a position at which a differential average exceeds a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.