Bioelectric Impedance measurements (BIM) represents a wide range of old and new non-invasive technologies and methods where a very small electric current is applied to the body via one or more surface electrode and the resultant current passing through the body is detected at other surface electrodes placed elsewhere on the body. A drop in voltage occurs as the current encounters impedance or resistance inherent in the fluids and tissues it passes through as it courses through the various physiological “compartments” of the body.1-3 These compartments include the bloodstream, the intracellular space, the lymphatic system, the interstitial space, and others.4,5 This drop in voltage provides indirect information about the physical and chemical properties of the compartment(s) that the current passed through. Technically, the term “impedance” refers to A.C. forms of electricity and the term “resistance” refers to D.C.
Alternating Current Bioelectric Impedance Methods:
The most familiar form of BIM uses an alternating current (A.C.) system. There are dozens of readily available commercial and custom-built A.C. BIM systems differing widely in design and complexity.6 Most systems are used to indirectly estimate the fat content of the body by measuring total body water.7,8 These systems typically employ A.C. electricity with a wide range of currents, frequencies, and voltage. The amount of electricity delivered to the body is usually imperceptible and far below the level that would cause cellular or tissue damage.9,10 Studies of A.C. BIM systems operating at 50 MHz or higher, have revealed that these high frequency A.C. electric currents flow non-selectively through both intracellular and extra cellular spaces11 (see image below), and thus provide relatively non-specific information regarding the physical properties and chemical composition of total body water. Recently, the FDA approved several A.C. BIM devices for use as diagnostic aids in cardiology and oncology.
EIS-USB
Multiple Clinic Rooms?
With The EIS System (both versions) the test which takes 2 minutes can be done in any room, even the waiting room and then the results can be made available in every clinic room via the clinic's internal network system.
This is the perfect mobile companion for any healthcare professional. Weighing only 8 lbs this unit can be carried in any laptop carry case.
Perfect for offsite testing and easy to transport,The EIS USB answers the need to have a portable testing unit. The resuts can then be emailed to the licenced practitioner "off site" for assessment purposes.
Connected to the USB port of a laptop (not included)
EIS-PRO: Fully integrated with an ergonomic design.
Designed for the high volume, high visibility locations like hospitals and gyms. All the components are concealed within the design structure creating a very sleek, highly professional product. Laptop base, as illustrated, allows The EIS System to be easily connected to any laptop with a USB cable.
