Position measuring device for endoscope
US5228429A · kind A · utility
118Cited by
11References
1Claims
0Family size
Inventor
Key dates
| Filing date | Nov 30, 1992 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Nov 30, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/103
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A plurality of arms are successively connected to a fixed arm so that the free end of the connected arms is movable three-dimensionally, a direct-access endoscope is attached to the three-dimensionally movable free end of the arms, and angle sensors are provided in the individual arm joints. Changes in angles between the individual arms due to the movement of the front end of the direct-access endoscope are sensed by the angle sensors, and the size and position of the object are numerically determined according to the changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.