Disclosed is a system for monitoring a heart condition in a companion animal. The system can collect electrocardiogram data of a companion animal through a capacitive electrocardiogram sensor without prior preparation such as hair removal, collect phonocardiogram data and ballistocardiogram data through a phonocardiogram sensor and a ballistocardiogram sensor, and generate cardiogram-integrated data available for diagnosing a heart condition in the companion animal by merging the electrocardiogram data, the phonocardiogram data, and the ballistocardiogram data.

An electrocardiogram measurement unit comprises: a pair of positive and negative electrode bodies and constituting capacitive coupling electrodes and arranged in a non-contact state with a human body, a signal amplification unit that amplifies an electric signal from both the electrode bodies and outputs the amplified electric signal as an electrocardiographic signal, and an inverting output unit that inverts an in-phase signal of the electric signal from both the electrode bodies and outputs an inverted signal. The electrocardiographic signal measurement device comprises simultaneously both channels and when the electrocardiogram measurement unit to which the inverted signal from the inverting output unit is input to the positive electrode body is defined as a first channel, and the electrocardiogram measurement unit to which the inverted signal from the inverting output unit is input to the negative electrode body is defined as a second channel.

An electrocardiogram measurement unit comprises: a pair of positive and negative electrode bodies and constituting capacitive coupling electrodes and arranged in a non-contact state with a human body, a signal amplification unit that amplifies an electric signal from both the electrode bodies and outputs the amplified electric signal as an electrocardiographic signal, and an inverting output unit that inverts an in-phase signal of the electric signal from both the electrode bodies and outputs an inverted signal. The electrocardiographic signal measurement device comprises simultaneously both channels and when the electrocardiogram measurement unit to which the inverted signal from the inverting output unit is input to the positive electrode body is defined as a first channel, and the electrocardiogram measurement unit to which the inverted signal from the inverting output unit is input to the negative electrode body is defined as a second channel.

Provided is a biological information acquisition system capable of acquiring an electric parameter and biological information that are more accurate. A biological information acquisition system 200 includes a flexible electrode sheet 100 having multiple electrodes 30 arranged in an array, an electrode selector that acquires an electric parameter from the multiple electrodes 30 in a state in which the electrode sheet 100 is arranged along a biological body 300 such that the multiple electrodes 30 do not contact the biological body 300 to select the electrodes 30 to be used for acquisition of biological information based on the acquired electric parameter, and a biological information acquirer that acquires the biological information from the electrodes 30 selected by the electrode selector in a state in which the electrode sheet 100 is arranged along the biological body 300 such that the multiple electrodes 30 do not contact the biological body 300.

Provided is a biological information acquisition system capable of acquiring an electric parameter and biological information that are more accurate. A biological information acquisition system 200 includes a flexible electrode sheet 100 having multiple electrodes 30 arranged in an array, an electrode selector that acquires an electric parameter from the multiple electrodes 30 in a state in which the electrode sheet 100 is arranged along a biological body 300 such that the multiple electrodes 30 do not contact the biological body 300 to select the electrodes 30 to be used for acquisition of biological information based on the acquired electric parameter, and a biological information acquirer that acquires the biological information from the electrodes 30 selected by the electrode selector in a state in which the electrode sheet 100 is arranged along the biological body 300 such that the multiple electrodes 30 do not contact the biological body 300.

A method can include attaching a sensor device contained in a sensor structure to a body; sensing motion of the body with at least one motion capacitive sensor of the sensor device that senses a capacitance change resulting from a difference in orientation of the motion capacitive sensor and a surface of the body. If motion of the body is not sensed with the motion capacitive sensor, sensor readings can be acquired with a biophysical sensor that emits signals into a portion of the body below the sensor structure, and generate data for a feature of the body with the sensor readings. If motion of the body is not sensed with the motion capacitive sensor, data for the feature of the body is not generated. Related devices and systems are also disclosed.

A method can include attaching a sensor device contained in a sensor structure to a body; sensing motion of the body with at least one motion capacitive sensor of the sensor device that senses a capacitance change resulting from a difference in orientation of the motion capacitive sensor and a surface of the body. If motion of the body is not sensed with the motion capacitive sensor, sensor readings can be acquired with a biophysical sensor that emits signals into a portion of the body below the sensor structure, and generate data for a feature of the body with the sensor readings. If motion of the body is not sensed with the motion capacitive sensor, data for the feature of the body is not generated. Related devices and systems are also disclosed.

An example apparatus includes a displacement current sensor configured to measure for a subject one or more sensed electrical signals, wherein the displacement current sensor comprises at least one electrode. The apparatus also includes circuitry configured to process the one or more sensed electrical signals from the displacement current sensor to obtain an electrocardiogram (ECG) signal and a variable impedance signal caused by an arterial pulse wave, wherein the circuitry configured to process the one or more sensed electrical signals to obtain the electrocardiogram signal and the variable impedance signal caused by the arterial pulse wave is configured to measure the variable impedance signal caused by the arterial pulse wave as a modulation of an applied electrical reference signal.

An example apparatus includes a displacement current sensor configured to measure for a subject one or more sensed electrical signals, wherein the displacement current sensor comprises at least one electrode. The apparatus also includes circuitry configured to process the one or more sensed electrical signals from the displacement current sensor to obtain an electrocardiogram (ECG) signal and a variable impedance signal caused by an arterial pulse wave, wherein the circuitry configured to process the one or more sensed electrical signals to obtain the electrocardiogram signal and the variable impedance signal caused by the arterial pulse wave is configured to measure the variable impedance signal caused by the arterial pulse wave as a modulation of an applied electrical reference signal.

The tissue status measuring apparatus includes an electrode set and a control module coupled to the electrode set. The electrode set is configured to emit a first sensing electric field toward a dielectric area and to form a capacitive loop with the dielectric area. The control module includes a driving unit and a processing unit. The driving unit is configured to output a driving signal to the electrode set to output the first sensing electric field. The processing unit is configured to measure a loop capacitance value of the capacitive loop. In response to a tissue under test being located within the dielectric area, the loop capacitance value of the capacitive loop is a first measured capacitance value. In response to a difference between the first measured capacitance value and a baseline capacitance value being greater than an abnormality threshold, the processing unit determines that the tissue under test has an abnormal tissue location.