Insertion position and orientation state pickup for endoscope
US5253647A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1991 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Apr 12, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/065
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A position and orientation state pickup is designed to detect the position and orientation state of an endoscope inserted into a living body without any adverse effect on the living body, which is often observed in X-ray analysis. The position and orientation state pickup, generating an electro-magnetic field with frequency at least lower than the visible ray range toward the body from outside; detects influence of the endoscope inserted into the body on two-dimensional energy distribution of the electro-magnetic field generated toward the body; and show the position and orientation state of the endoscope from the detection results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.