DEVICE FOR DETECTING ELECTRIC POTENTIALS
First Claim
1. A device for detecting electric potentials, the device comprising:
- a plurality of measuring inputs for connecting to measuring electrodes, which electrodes can be placed on the body of a patient;
a plurality of measuring amplifiers, which have a first and a second input as well as an output;
a summing unit with summing unit inputs respectively connected to the outputs of the measuring amplifiers, the summing unit being configured to send a signal, proportional to a mean value of the signals of the outputs of the measuring amplifiers, to a summing unit output, wherein;
each of the measuring inputs is connected to a first input of one of the measuring amplifiers;
the output of the summing unit is connected to each second input of the measuring amplifiers;
a potential output for connecting to an electrode, which can be placed on the body of the patient; and
a further amplifier with a further amplifier input connected to the output of the summing unit and with a further amplifier output connected to the potential output.
1 Assignment
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Accused Products
Abstract
A device detects electric potentials with measuring inputs (7) for connection to measuring electrodes (9), which can be placed on the body of a patient (3). Measuring amplifiers (Op1, . . . , OpN) have a first and a second input as well as an output (11). A summing unit (13, 23) is connected to the outputs of the measuring amplifiers and sends a signal proportional to a mean value of the signals of the outputs of the measuring amplifiers to an output (15, 17) of the summing unit. Each of the measuring inputs is connected to a first input of a measuring amplifier. The second input of each measuring amplifier is connected to the output (17) of the summing unit. A potential output (19) connects to an electrode and to an output of a further amplifier Opc), with an input connected to the output (15) of the summing unit.
21 Citations
9 Claims
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1. A device for detecting electric potentials, the device comprising:
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a plurality of measuring inputs for connecting to measuring electrodes, which electrodes can be placed on the body of a patient; a plurality of measuring amplifiers, which have a first and a second input as well as an output; a summing unit with summing unit inputs respectively connected to the outputs of the measuring amplifiers, the summing unit being configured to send a signal, proportional to a mean value of the signals of the outputs of the measuring amplifiers, to a summing unit output, wherein; each of the measuring inputs is connected to a first input of one of the measuring amplifiers; the output of the summing unit is connected to each second input of the measuring amplifiers; a potential output for connecting to an electrode, which can be placed on the body of the patient; and a further amplifier with a further amplifier input connected to the output of the summing unit and with a further amplifier output connected to the potential output. - View Dependent Claims (2, 3, 4)
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5. A method for detecting electric potentials, the method comprising the steps of:
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providing a plurality of measuring inputs for connecting to measuring electrodes, which electrodes can be placed on the body of a patient; feeding input signals, from the plurality of measuring inputs, to a first input of a plurality of measuring amplifiers; amplifying the fed input signals to provide output signals; forming a mean value signal of the output signals with a mean value signal level that is proportional to a mean value of the output signals; feeding the mean value signal to second inputs of the measuring amplifiers; and feeding the mean value signal to a potential output, which potential output is connected to an additional electrode. - View Dependent Claims (6, 7, 8, 9)
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Specification