Electroencephalograph
First Claim
1. An electroencephalograph comprising a number of measuring electrodes for emplacement on the head of the patient, signal amplifiers whose input channels are connectable to the measuring electrodes, selector means for connecting the measuring electrodes to the input channels in accordance with a pattern selection program, and recorders connected with the respective signal amplifiers and controlled by the output signals of the signal amplifiers, characterized in the selector means (2) having a head-image area (84), and having one manually operable electrode switch (e.g. 95-100, FIG. 5) for each measuring electrode (e.g. 95a-100a, FIG. 5), said selector means having selection circuit means (e.g. 152, 154) connected with said manually operable electrode switches (e.g. 95-100) and with said measuring electrodes (e.g. 95a-100a) and operable for selectively connecting said measuring electrodes with respective ones of said input channels in accordance with the pattern of actuation of said manually operable electrode switches, such that the respective measuring electrode (e.g. 95a-100a, FIG. 5) corresponding to each actuated electrode switch is connected to a respective input channel, and said electrode switches being arranged in positions relative to the head-image area (84) corresponding to the application locations of the respective measuring electrodes (e.g. 95a-100a, FIG. 5).
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Accused Products
Abstract
A number of measuring electrodes for emplacement on the head of a patient, signal amplifiers whose input channels are connectable, via a selector, to the measuring electrodes according to a pattern selection program, and recorders controlled by the output signals of the signal amplifiers. The selector manifests, in a head-image area, one electrode switch for each measuring electrode, by means of which electrode switch the measuring electrode is connectable to an input channel, and which electrode switch is arranged in a position relative to the head-image area corresponding to the application location of the measuring electrode.
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Citations
18 Claims
- 1. An electroencephalograph comprising a number of measuring electrodes for emplacement on the head of the patient, signal amplifiers whose input channels are connectable to the measuring electrodes, selector means for connecting the measuring electrodes to the input channels in accordance with a pattern selection program, and recorders connected with the respective signal amplifiers and controlled by the output signals of the signal amplifiers, characterized in the selector means (2) having a head-image area (84), and having one manually operable electrode switch (e.g. 95-100, FIG. 5) for each measuring electrode (e.g. 95a-100a, FIG. 5), said selector means having selection circuit means (e.g. 152, 154) connected with said manually operable electrode switches (e.g. 95-100) and with said measuring electrodes (e.g. 95a-100a) and operable for selectively connecting said measuring electrodes with respective ones of said input channels in accordance with the pattern of actuation of said manually operable electrode switches, such that the respective measuring electrode (e.g. 95a-100a, FIG. 5) corresponding to each actuated electrode switch is connected to a respective input channel, and said electrode switches being arranged in positions relative to the head-image area (84) corresponding to the application locations of the respective measuring electrodes (e.g. 95a-100a, FIG. 5).
Specification