Peripheral nerve stimulator
US4157087A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1978 |
| Grant date | Jun 5, 1979 |
| Priority date | — |
| Expiry date | Mar 6, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic peripheral nerve stimulator which may be used to monitor the type of neuromuscular blocks present in a patient following the administration of a muscle relaxant drug. An integrated circuit monostable multivibrator or one-shot is coupled to an amplifier and output stage. Plural integrated astable multivibrators are provided which may be selectively employed to trigger the one-shot circuit to thereby produce stimulating impulses of several predetermined repetition rates and duty cycles useful for producing the so-called "twitch" and "tetanus" responses of a patient's digital members. The peripheral nerve stimulator also includes indicating means for the power-on condition of the unit as well as for a low battery charged condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.