Stereoscopic medical viewing device
US4924853A · kind A · utility
45Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1989 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | May 22, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/317
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention concerns an endoscopic instrument having a three-dimensional optical viewing system. Images from an interior body region are transmitted through image transmission elements contained within the endoscope probe to a prism arrangement. The prism maintains the images in upright position regardless of the rotation of the instrument. A shutter system operating at a predetermined frequency alternately opens and closes the optical path of each image. These images are converted to electrical pulses in accordance with the requirements of the three-dimensional television system used to display an image of the body region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.