Gradient coils in magnetic resonance imaging machines
US5821748A · kind A · utility
6Cited by
4References
6Claims
0Family size
Inventor
Key dates
| Filing date | Jan 6, 1997 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Jan 6, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/283
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In magnetic resonance imaging machines the gradient coils which generate fast changing magnetic fields vibrate and generate considerable levels of sound. In this invention the vibration of the gradient coils is utilized to generate sounds to communicate with a patient in the machine. The sounds may originate from an operator via a microphone, or may be computer generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.