The Bodystat® QuadScan 4000 device offers a quick, easy, economical and non-invasive alternative to other methods of fluid assessment and Body Composition analysis, e.g. radioisotope dilution, underwater weighing.
The principle of measuring the flow of current through the body (impedance) is dependent on the frequency applied. At low frequencies, the current cannot bridge the cellular membrane and will pass predominantly through the extra-cellular space.
At higher frequencies penetration of the cell membrane occurs and the current is conducted by both the extra-cellular water (ECW) and intra-cellular water (ICW).
By measuring the impedance at 5 kHz and 200 kHz and by applying predictive equations, it is possible to estimate both ECW and TBW (Total Body Water) respectively and by deduction, ICW. ECW can be related to Extra-Cellular Mass and ICW to Body Cell Mass.
By measuring the impedance at 50 kHz and applying the unique Bodystat® equation Body Fat, Lean Mass and Dry Lean Mass can be assessed. The QuadScan 4000 contains separate Body Composition equations for Children 6 years and over and Adults. In addition the QuadScan 4000 measures at 100 kHz.
Total body weight, height, age and gender are required by the predictive equations used in the hardware unit to display the results on the LCD screen. Where it is impractical to determine weight, as in the case of certain hospitalised patients, alternative equations can be applied in the QuadScan 4000 program to calculate ICW, ECW and TBW.
Whole Body analysis, rather than partial body analysis of arms or legs only, is measured for greater accuracy. In addition, alternative equations provide for the proximal placement of electrodes on sternum and knee to potentially monitor more sensitively the changes in fluid levels in the trunk area.
The strategic placement of electrodes on the chest area could provide for the monitoring of change in impedance values (hence fluid shifts) in the left and right lung individually.
The Body Composition Data is instantly downloaded directly from the QuadScan 4000 using Bluetooth technology. This saves time and eliminates the risk of error inherent in re-keying subject data.
The main program features include:
Body Composition Analysis in a 2-page summary report.
Trend Report, enables a user to track lean/fat ratios, fluid levels and impedance values over a period of time. The user can also track changes in Blood Pressure, Cholesterol, Waist to Hip, Heart Rate and Lung Function.
Weight & Activity Manager, allows a user to develop a series of exercises in order to calculate the amount of kilocalories these will burn This adjustment may then be incorporated into a user's own diet program. The number of weeks to achieve goal weight is automatically determined.
Cardiac Risk Analysis, assessment of health status relating to lifestyle. Factors include exercise levels, smoking, blood pressure, family history, etc. The screen immediately displays the effects of potential lifestyle changes e.g. if a subject smokes 20 cigarettes a day and they agree to reduce their smoking to 5 cigarettes a day the impact on their Cardiac Risk can be seen immediately on the screen.
Alternative Equations, these are available for competitive athletes, children 6 years and over and geriatrics and may be selected as required by the user to determine % fat and lean muscle levels. Alternative metabolic formulae are also included and the user has the option to select their own % fat ranges.
TBW, ECW and ICW Trend Reports, these reports enable the user to track the changes in a patient's hydration status and body cell mass.
Fat Chart
Features
Multi-frequency BIA unit with Bluetooth for PC communication
Segmental measurements possible using Illness Marker concept
Safe and Non-invasive
Easy to use
Lightweight and portable
QuadScan 4000 Software
Built-in automatic calibration
Test results available within seconds
Battery operated
High contrast, 2 line LCD display
Automatic 100 test counter
Subject data recall
Actual results & recommended ranges
Low battery alarm system
12 month Parts and Labour Warranty on a return to factory basis
Accepts metric or imperial units
Quality Clearance: CE 0120 Medical Devices Directive and FDA
Available in English, French, German, Portuguese and Spanish
Benefits
Non-invasive assessment of hydration and nutrition status
Assess nutritional status of patients on admission and pre-surgery
Monitor the Illness MarkerTM during hospitalisation – without the need to weigh the patient and irrespective of age, weight, population group
Monitor Lean Body Mass, rather than Total Body Weight to determine the patient’s response to nutritional supplements
Determine if weight gain is due to increase in Lean Body Mass or fluid retention
Able to monitor hydration status
Test can be performed at the bedside, versus other more complicated and expensive methods
Quick corrective action can be taken to improve the health of the patient
Ease of use allows for regular monitoring of status as frequently as required (minutes, hours, days, etc)
Number of measurement parameters can be selected to meet specific needs
Trend graphs with QuadScan 4000 Software Program, available for quick evaluation for remedial action
Exact time of measurements recorded by Real Time Clock
The Bodystat® QuadScan 4000 System includes:
Bio-Impedance Analysis Unit
Comprehensive Hardware User's Guide on CD
Cable Leads
120 Disposable Long Electrodes
Calibrator
Duracell Batteries AA (6)
Bodystat® QuadScan 4000 Software Program (No Annual Licence Fee) with unlimited Telephone/E-mail Software Support
Bluetooth module fitted to download stored test data into a PC
Customised Padded Shoulder Bag
Pictorial laminated Quick Guide
12 month Parts and Labour Warranty on a return to factory basis (excludes lead wires)
The Bodystat® Phase Angle Program
Our older (pre-PSoC) QuadScan devices do not measure Phase Angle. This software program is not necessary for the new units as they do measure the Phase Angle values. However, this software program allows you to enter the four impedance values from the QuadScan 4000 unit into the Bodystat® Phase Angle Program. Once these values have been entered into the program, the software will then calculate and display the results for Phase Angle, Reactance and Resistance at the four frequencies of 5, 50, 100 and 200 kHz.
Please note that all four impedance values must be entered for this program to function.
Certain computer restrictions may apply in order to download this program. Please check that your computer has the specifications below before commencing download:
PC with 32MB memory, Windows 95 & upwards Operating System & a minimum of 30MB Free hard disk space.
By measuring the impedance at 5 kHz and 200 kHz and by applying predictive equations, it is possible to estimate both ECW and TBW (Total Body Water) respectively and by deduction, ICW. ECW can be related to Extra-Cellular Mass and ICW to Body Cell Mass.
The Body Composition Data is instantly downloaded directly from the QuadScan 4000 using 
Bluetooth technology. This saves time and eliminates the risk of error inherent in re-keying subject data.