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BioNomadix 2Ch Wireless EGG Transmitter

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BioNomadix 2Ch Wireless EGG Set
Part #: BN-EGG2-T

The Dual Wireless EGG BioNomadix Transmitter is a module specifically designed to measure Electrogastrogram (EGG) data—the peristaltic, wavelike contractions of the stomach—on one or both channels. Using AcqKnowledge, wide bandwidth EGG data can be filtered to lower values to accommodate closer inspection of specific EGG frequencies, such as Bradygastria, Normogastria and Tachygastria or identification of ECA and ERA. To extract a bipolar measurement between two unipolar measurements referenced to a common abdominal electrode site, use the equation generator in AcqKnowledge.

EGG signal data is transmitted at a rate of 2,000 Hz, providing an extremely high resolution EGG waveform at the receiver’s output. Raw data from the pair is bandlimited from 0.005 Hz to 1.0 Hz, to provide a very high quality recording. The matched pair incorporates internal highpass and lowpass filters to provide for high quality amplification of the EGG waveform with associated Electrical Control Activity (ECA) and Electrical Response Activity (ERA). The high signal to noise ratio and high time-based sampling resolution permit the pair to be used for specific gastric slow wave propagation measurements, gastrointestinal motility analysis, peristaltic propagation studies or migrating myoelectric complex evaluation.
Use with a BioNomadix Logger or matched Receiver.
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Bionomadix 2 Ch Wireless EGG module
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Part #: BN-EGG2-T
Categories: Amplifiers - Research, BioNomadix Wireless Wearable Physiology - Research
Subcategories: Transmitters - Research

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The matched pair emulates a “wired” connection from subject to computer, with all the benefits of a fully-wireless recording system.

Collect data from two sites with either unipolar (referential) or bipolar setup.

EGG amplifier with AcqKnowledge automated EGG analysis

AcqKnowledge automated EGG analysis

To learn more about the electrogastrogram, read…

Electrogastrography: Methodology, Validation and Applications

Gut Feelings, Intuition, and Emotions: An Exploratory Study

Electrogastrophy – Methodology and Clinical Applicability

 

Biopotential amplifier/transmitter signal to noise ratio is very high (in excess of 70 dB), as the noise floor of the amplifier/transmission system is only 0.5 µV rms (bandwidth of 0.005 Hz to 1 Hz).

The module set has a fixed gain of 2,000. The largest EGG signal which can be measured is 10 mV pk-pk. The smallest signal which can be detected is less than 0.5 µV rms.

Due to battery operation of the wireless transmitter and close proximity to the subject’s body, common-mode rejection ratio is extremely high, considerably in excess of any typical wired EGG recording system. Accordingly, and also due to the pair’s low bandwidth, notch filters to remove mains interference (50 or 60 Hz) are usually never required.

Interference with other recording modules or systems is greatly minimized because the transmitter is completely battery operated and operates totally independently of any other recording grounds or power sources. The recording transmitter is also extremely safe to use, because there is no physical connection to supply mains.

The transmitter attaches to the subject’s torso/abdomen via stretchy Velcro strap or a stretch-mesh BioNomadix Shirt (see accessories). The exterior transmitter body dimensions (W x H x D) are approximately 6 cm x 4 cm x 2 cm and it weighs approximately 54 grams.

The transmitter’s battery can provide power for up to 72 hours of continuous operation.


The new BioNomadix series of wireless, wearable physiology monitoring devices for life science research are available for a wide range of signals, including ECG, EEG, EOG, EMG, EGG, Respiration, Pulse, Temperature, Electrodermal Activity, Impedance Cardiography, Accelerometry, and Gyro. BioNomadix are typically dual-channel units, offering either two of the same signal or a combination of signals.

BioNomadix noninvasively record high-quality, full-bandwidth data while comfortably allowing subjects to move freely in natural indoor environments. Each BioNomadix device consists of two parts, a transmitter that is worn by the subject to amplify and send the physiological data, and a receiver module. BioNomadix transmitters use digital transmission and short leads or transducers placed close to the signal source to provide excellent signal quality. BioNomadix are configured for specific signal types, so you don’t have to adjust settings on the hardware or software for high quality data.

Multiple BioNomadix can be used to provide the optimum signal combination for a research study requiring biopotential or transducer signals.

When used with a BIOPAC MP System, up to 16 channels of BioNomadix data can be recorded for multi-subject or multi-parameter protocols. The system also works with multiple MP150 systems or third-party data acquisition hardware via an isolated power supply module (IPS100C). AcqKnowledge software adds the power of sophisticated automation and scoring routines for each signal type, plus customization options.

BioNomadix accessory items include transducers, electrode leads, and a custom, pocketed stretch-mesh shirt to comfortably hold multiple devices in place. The shirt has zippers placed for easy access to electrode sites and is available from extra small to extra large.

Developed and manufactured by BIOPAC Systems Inc., a leader in life science data acquisition and analysis, the new BioNomadix series delivers all the benefits of a wireless solution with the signal quality & integrity of a wired system. BioNomadix provides a cost-efficient option for uncompromised wireless physiological subject monitoring.

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