Detecting capacitively coupled ECG baseline shift
US4194511A · kind A · utility
10Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 18, 1978 |
| Grant date | Mar 25, 1980 |
| Priority date | — |
| Expiry date | Aug 18, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/902
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In an electrocardiographic system there is a multielement electrode at two skin locations for providing an ECG signal of negligible magnitude between elements because of the close spacing while the pair of elements are sufficiently separated so that the motion of one element is at least partially independent of the motion of the other. Parallel ECG signals are obtained from different elements of two multielement electrodes. The difference between the signals is detected by logical circuitry to produce a signal indicating baseline shift. The elements are coaxial with a 250 K resistor in series with each outer element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.