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EUROSTARS-EUROSTARS

E!9862 - Respiratory Blood Gas

Alternative title: E9862 - Målesystem for respirasjon og blod gass

Awarded: NOK 4.0 mill.

Project Number:

252043

Project Period:

2015 - 2018

Funding received from:

Organisation:

Location:

Partner countries:

In the project, "Non-invasive wireless blood gas and respiratory monitoring system", the goal is to develop a vital sign monitoring system targeting patients with respiratory and ventilation risks. The basic version of the monitoring system will consist of two different types of miniaturized, wearable wireless sensors and receiver modules with the capability to send vital patient sign data to the monitoring centre connected to a monitoring system with alarm capability. One of the miniaturized wireless sensors will be implemented as a wearable patch attached to the upper torso. This patch will measure respiratory motion and respiratory rate very accurately, using the Xethru radar based respiration sensor. The other sensor will be implemented as a wearable wireless wristband measuring transcutaneous CO2 and pulse oximetry O2. The proposed respiratory monitoring system targets patient scenarios where monitoring of the blood gas vital signs is critical or beneficial. The sensor technologies proposed for this non-invasive system have the best proven performance, and provide data closest to those obtained by taking blood samples for blood gas analysis. The patient can also be monitored continuously with a non-invasive method, which has several benefits, such as -Continuous monitoring -Fast response to deteriorating patient condition -Non-invasive technique -> usable on large patient groups Furthermore, the proposed non-invasive blood gas monitoring system will be implemented completely wirelessly. The project will be performed as a collaboration between the Swedish company Novosense AB and the Norwegian company Novelda AS and is funded by Eurostars through the Research Council of Norway. The activities in the first phase of the project have been focused on establishing a system level concept and overall model. Respiration algorithms have also been developed and validated in their first revision with very promising results. The first antenna prototype targeting a body coupled configuration has been developed, manufactured and tested. The test results show that the performance is as expected. Based on these results, the different building blocks have been combined into the first project prototype. The test setup for validating performance has been development and the tests are currently ongoing. This results has been provided as input to the final sensor prototype. Revised signal processing algorithms operating on a target MCU platform have been developed with the goal of meeting the robustness requirements in the use case. The final prototype has been testet as planned and further optimized for cost reduction and manufacturability.

In the proposed project, "Non-invasive wireless blood gas and respiratory monitoring system", the goal is to develop a vital sign monitoring system targeting patients with respiratory and ventilation risks. The basic version of the monitoring system will consist of two different types of miniaturized, wearable wireless sensors and receiver modules with the capability to send vital patient sign data to the monitoring centre connected to a monitoring system with alarm capability. One of the miniaturized wireless sensors will be implemented as a wearable patch attached to the upper torso. This patch will measure respiratory motion and respiratory rate very accurately, using CMOS chip-based ultra-wideband radar (UWB radar). The other sensor will be implemented as a wearable wireless wristband measuring transcutaneous CO2 and pulse oximetry O2. The primary respiratory vital signs monitored will be: -Transcutaneous CO2, using a non-invasive wireless wristband sensor -Pulse oximetry (O2), using a non-invasive wireless wristband sensor -Continuous respiratory motion, using a non-invasive wireless wearable torso sensor -Respiratory rate, using a non-invasive wireless wearable torso sensor The proposed respiratory monitoring system targets patient scenarios where monitoring of the blood gas vital signs is critical or beneficial. The sensor technologies proposed for this non-invasive system have the best proven performance, and provide data closest to those obtained by taking blood samples for blood gas analysis. The patient can also be monitored continuously with a non-invasive method, which has several benefits, such as -Continuous monitoring -Fast response to deteriorating patient condition -Non-invasive technique -> usable on large patient groups Furthermore, the proposed non-invasive blood gas monitoring system will be implemented completely wirelessly. There is no such system on the market today.

Funding scheme:

EUROSTARS-EUROSTARS