SleepSense Inductive Plethysmography(RIP) Sensors
Corporate Marketing Manager
St. Charles, II
DEVELOPMENT OF EFFICIENT INDUCTIVE TECHNOLOGY
Until 3 years ago, the Respitrace was the only available system in the market to measure inductive plethysmography. However, the interface box was relatively large and expensive and the bands were available in a disposable form only. SleepSense decided to design inductive sensors that were more affordable and simple to handle. We wanted a direct replacement to any piezo sensor that could work with all PSG systems on the market. Since piezo sensors are very economical, the main challenge was to develop a cost effective inductive sensor. We therefore combined our know-how in micro-electronics and sensor technology to create a unique “plug & play” interface cable with semi-reusable bands. The combination of the two provides inductive technology that is reliable, easy to use, and cost effective.
EASIEST-TO-USE RIP SENSORS
These RIP sensors are the easiest to use in the market. The SleepSense interface cable design combines an easy-to-use “plug & play” design in a light-weight, durable, and self-sufficient package. The interface cable hosts a built-in battery which eliminates the need to recharge the device, or replace batteries. This all comes packaged in a very small and durable box. The semi-reusable inductive belts are offered in 5 different sizes. They can be cleaned in a washing machine, or sterilized. Many of our customers report a very nice signal, and higher patient compliance because there is no need to adjust the belts.
SEMI-REUSABLE BANDS AND FULLY AUTOMATIC CABLES
The main emphasis while developing our inductive sensors was that they would be convenient to use and maintain. For example, we decided to make semi-reusable bands as opposed to the existing reusable or disposable bands. The main advantage that the SleepSense semi-reusable bands have over disposable bands is that you do not have to cut them to size. They already come in 5 color-coded sizes and unlike reusable bands they are made from a non-latex, cotton/lycra which is a flexible material ensuring added patient comfort.
Another significant advantage is the fact that our interface cable is fully automatic and absolutely maintenance-free; unlike other interface cables that require frequent battery replacement; our Interface cable has an internal battery that is good for approximately 700 nights. Moreover, there is no need to calibrate the device. Simply plug it in and start recording.
SWITCHING OVER TO INDUCTIVE SENSORS
The new AASM guidelines require the use of inductance plethysmography technology for the detection of respiratory effort. This means that before July 2008 all accredited sleep labs will have to switch from piezo sensors to inductive sensors. We also foresee that many non-accredited sleep labs will follow, as this technology becomes the gold standard. The SleepSense inductive system has been extremely popular because of its cost effectiveness and “plug & play” design making it easy for labs to switch over to when complying with the new regulations. During the past few months we sold more inductive sensors than piezo reflecting the fact that many sleep labs have already begun to implement the new regulations.
A UNIQUE ORAL THERMOCOUPLE
Another requirement by the new AASM guidelines is the use of a thermal sensor to detect the absence of airflow and the use of a nasal cannula for the detection of hypopnea. In order to avoid the complication of using both nasal cannula and a standard thermal sensor in parallel, SLP has developed a unique oral thermocouple, Model 1413. This single thermocouple addresses the previously mentioned requirement by using a unique and patient compliant design. The sensor is specifically designed to capture oral flow signals when monitoring nasal flow via a pressure cannula. It has a flexible wire that securely attaches the sensor to the cannula. This eliminates the need to separately apply the oral sensor. It is quicker and easier to apply/remove in comparison to the traditional thermal sensors.
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