Video system for visualizing microsurgical images with enhanced depth of field
US4987488A · kind A · utility
15Cited by
5References
22Claims
0Family size
Inventor
Key dates
| Filing date | Mar 7, 1988 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Mar 7, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B90/361
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A high resolution video camera is equipped with a multi focal lens. The optical system is adjusted to provide a depth of field so that objects remain in focus. A high resolution, large screen color video monitor provides a greatly magnified view of the surgical field, permitting a surgeon to perform procedures directly from the screen image. Low light levels can be permitted and multiple monitors can be employed. Images can be stored on a disc or VCR and individual frames can be printed for a permanent record.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.