Electrode for biomedical measurements
First Claim
1. Electrode for biomedical measurements, with a contact plate, and with a line driver which has a high-impedance signal input and a low-impedance line output and is arranged in the vicinity of the contact plate, wherein a current source which has a current output and a reference point and is arranged in the vicinity of the contact plate, wherein the contact plate is electrically connected to the high-impedance signal input of the line driver and to the current output of the current source and wherein a measuring circuit voltage can be picked up between the low-impedance line output and the reference point.
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Abstract
The invention relates to an electrode for biomedical measurements, in particular for measurements for electrical impedance tomography, which permits measurements with as little interference as possible. The electrodes comprise a contact plate, a line driver with a high-impedance signal input and low-impedance line output and a current source, with a current output and a reference point, whereby the contact plate is connected to the high-impedance signal input of the line driver and to the current output of the current source and the line driver and the current source are arranged in the vicinity of the contact plate.
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Citations
14 Claims
- 1. Electrode for biomedical measurements, with a contact plate, and with a line driver which has a high-impedance signal input and a low-impedance line output and is arranged in the vicinity of the contact plate, wherein a current source which has a current output and a reference point and is arranged in the vicinity of the contact plate, wherein the contact plate is electrically connected to the high-impedance signal input of the line driver and to the current output of the current source and wherein a measuring circuit voltage can be picked up between the low-impedance line output and the reference point.
- 12. Electrode belt for carrying out a measurement by electrical impedance tomography with a plurality of electrodes, each electrode comprises a contact plate and a line driver which has a high-impedance signal input and a low-impedance line output and is arranged in the vicinity of the contact plate, wherein a current source which has a current output and a reference point and is arranged in the vicinity of the contact plate, wherein the contact plate is electrically connected to the high-impedance signal input of the line driver and to the current output of the current source and wherein a measuring circuit voltage can be picked up between the low-impedance line output and the reference point.
Specification