Ambulatory Impedance Cardiograph MW1000A

The MindWare MW1000A Ambulatory Impedance Cardiograph brings laboratory impedance cardiograph measurement quality to the field. This small battery powered instrument combines the power of PDA based data acquisition with precision electronics. It is ideal for studies that require monitoring of sympathetic, parasympathetic, and cardiac function. The MW1000A is small enough to be worn comfortably on a belt and is housed in a semi-rugged case.

The MW1000A injects a high precision frequency constant current of 400 micro amps which allows measurement of the impedance changes across the thorax. The precision electronics then condition and output four continuous signals impedance (Z0), its derivative (dZ/dt), Electrocardiogram (ECG), and a Galvanic Skin Conductance (GSC) that are digitized by the high resolution A/D card. Data can be streamed to local storage on the PDA (2GB SD) or transmitted via Wi-Fi to a host PC using a wireless router and MindWare's BioLab acquisition software. This data can then be analyzed with MindWare's powerful suite of analysis applications.

The system comes complete with the PDA, Rugged case with Impedance Electronics, Acquisition Card, SD Card (memory storage), Subject leads and harness, and charger.

Impedance cardiography is employed in clinical cardiology and more recently is being applied to psycho-physiological studies of autonomic cardiac control in human performance contexts. One parameter of relevance is a systolic time interval, the pre-ejection period (PEP), which indexes myocardial contractility and hence is sensitive to variations in sympathetic control.

Optional: Rugged Travelling Case -- Take this system on the go with a customized travelling case!