Current patterns for impedance tomography
US5272624A · kind A · utility
44Cited by
4References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 2, 1990 |
| Grant date | Dec 21, 1993 |
| Priority date | — |
| Expiry date | Oct 2, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0536
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In an electrical impedance imaging system that is capable of forming images based on internal resistivity of a body, an array of electrodes is applied to the surface of the body and energized by a plurality of current generators. Each current generator is controlled to produce current patterns containing single fixed magnitudes. The current generators are also controlled to apply current to the respective electrode only when the current generator is at peak current value to minimize transient conditions and maximize the rate at which images can be produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.