Stereoscopic X-ray fluoroscopy system using radiofrequency fields
US5251635A · kind A · utility
426Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Sep 3, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/337
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
During an X-ray procedure, the position and orientation of an invasive device, such as a catheter are measured with radio frequency fields and displayed stereoscopically. Instantaneous three-dimensional positions of the invasive device are displayed by superposition of a graphic symbol on static X-ray images obtained at two different view angles. The X-ray images are obtained only when deemed necessary by the operator to minimize X-ray dose. A single X-ray source and detector may be implemented since it is not necessary to obtain the X-ray images simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.