Portable self-contained instrument for the measurement of nerve resistance of a patient
US5333618A · kind A · utility
Inventors
Key dates
| Filing date | Jun 30, 1993 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Jun 30, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/4041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The instrument consists of a hollow elongated cylindrical housing having a stimulator circuit and a receptor circuit disposed therein. Stimulator leads are connected to the stimulator circuit and receptor leads are connected to the receptor circuit. The housing includes a display means and a stimulator circuit activator switch. The stimulator leads are connected to stimulator electrodes mounted at a first position on the patient, and the receptor leads are connected to receptor electrodes mounted at a second position on the patient. The first position is spaced from the second position and the first and second positions are disposed along the path of a nerve of the patient. The suspected damaged portion of the nerve is between the first and second positions. The stimulator circuit activator switch is activated so that a stimulator pulse is applied, via the stimulator leads and the stimulator electrodes, to the nerve at the first position. This pulse is transmitted along the nerve from the first position to the second position, and is received at the second position by the receptor circuit, via the receptor electrodes and the receptor leads. The time of travel of the pulse from the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.