Process and device for detecting the response of the heart to an electrical stimulation pulse
US4537201A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1983 |
| Grant date | Aug 27, 1985 |
| Priority date | — |
| Expiry date | Sep 9, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3716
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a process and device for detecting the response of the heart to an electrical stimulation pulse, comprising: collecting, after the end of the stimulation pulse, a first signal v which represents the electrode potential in open circuit and of which the variation in time t, from an original instant t.sub.o is of substantially logarithmic form: ##EQU1## v.sub.o being the value of v at instant t.sub.o and k being a parameter connected in particular with the duration and amplitude of the stimulation pulse, converting the first signal v into a second signal of which the variation in time is substantially linear and, detecting in said second signal a non-linear component representing the signal produced by the provoked contraction of the heart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.