Automatic gantry positioning for imaging systems
US5255680A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1991 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Sep 3, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/365
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tracking system which measures the position and orientation of invasive devices is used to automatically control the location of the X-ray imaging system gantry and/or patient table. The position and orientation of the invasive device, such as a catheter, are measured by detection of a radiofrequency field generated by the invasive device. The invasive device has at least one transmit coil attached near its end and is driven by a low power RF source to produce a dipole electromagnetic field that can be detected by an array of receive coils distributed around a region of interest. Automatic gantry placement facilitates medical diagnostic and therapeutic X-ray procedures and in some instances can reduce the number of personnel required to perform these procedures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.