Biomagnetic measurement apparatus
US7363070B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2004 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Feb 8, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0044
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed herein is a biomagnetic measurement apparatus capable of visualizing cardiac electrical current distributions with information on the cardiac morphology of a subject. A magnetic field component in the z direction, vertical to the chest surface of a subject, is measured from two directions, front and back of the chest, and then to calculate the current distributions in the two directions and the distributions of the amplitudes of those current distributions. A three-dimensional standard heart model is created from average data on the cardiac morphology obtained from plural healthy subjects. An optimal position of the model is determined using the coordinates of the sinus node and the coordinates of the left ventricle. Then, a weight coefficient is obtained by front and back current distributions and front and back the distributions of the amplitudes of those current distributions on a set boundary of the model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.