Video display system for projecting an image on to a tilted screen adjacent a surgical field
US5543832A · kind A · utility
20Cited by
34References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1994 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Mar 29, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/373
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for projecting an image of a surgical field along an optical path to intersect a display screen which is nonperpendicular to the optical path and adjacent the surgical field. A video projector projects the image along the optical path through a tilted projection optic or compensator, and mirrors locate the optical path adjacent the surgical field. A sterilizable display screen is located in the optical path adjacent the surgical field so that a normal to the screen is noncoincident with the optical path and the projected image on the screen is of constant focus across the screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.