TM Sum mit IP Affordable, True Inductive Plethysmography Te c h n ic a l I nfo rma tio n Bu lle tin AA661 Issue 1

RIP Technology and Why You Need the Summit IP • You need a reliable method to detect and track hypopneas • You need to track true paradoxical breathing • You need to provide the best for your patients - No Compromise • Continuous, Automatic SUM Calibration • Works with your current PSG amplifier Brief History of Respiratory Inductive Plethysmography The original inductive band patent was issued to Marvin Sackner and Herman Watson in 1982. There design encircled the body with the sensor coil and claims to measure the change in the cross-sectional area under the sensor. This Is the design that...

How Inductive Plethysmography Works Plethysmography (plethys; Gr., en large meni, to measure) is the study ot the variation in size ot a body or blood volume. Inductance Is [lie rc-sislance to change in current flow In an alternating current circuit. Tie spec ally designed elastic respiratory bands that are used with Inductive plethysmography have insulated wire colls sewn Into them. The Summit IP produces a square wave excitation signal of 32.7kHz for the thoracic and abdominal channel, of approximately 2.8V peak-to-peak, through the coils by a frequency oscillator circuit. As Ihe bands are...

Affordable. Trur Induttiva PI Respiratory Inductive Band Design

Questions that you may still have: Q1. Has this basic design of a sensor with partial coverage of the chest and abdomen been used for research? A1. Yes. Both the Sleep Heart Health Study and SHHSII used the inductive bands with the P-Series system - all data was collected using Inductive Plethysmography with the P-Series. The vast majority of research published from labs in Australia has used the Compumedics S-Series and P-Series Systems with the partial circumference style Inductive bands. A number of research projects are currently underway which use the Summit IP as t he effort sensor. Q2....

Q4. A4. Does the Compumedics inductive sensor maintain signal polarity for accurate reflection of paradoxical breathing? Absolutely ! The sensor/inductive circuit always maintain the same signal polarity making it a more reliable indicator of paradoxical respirations. Q5. Why are continuous updates to SUM channel balancing necessary? A5. Continuous input channel balancing for the SUM channel output compensates for long term changes in the relative contribution of Thoracic and Abdominal bands to respiration, as may occur with positional changes. Even Respitrace with its values calibrated against...