Translate case to... Biomedical Wireless Sensor Project

Experimental test of a new wireless communication platform for biomedical 4 sensors: 1) epicardial axellerometer (VTT, Finland), 2) ECG (Novosense, Sweden), 3) digital pleural drainage system( Millicore, Sweden) and 4) continuous arterial blood pressure (MemsCap, Norway).

The video show the final showcase from 18 months work in Biomedical Wireless Sensor Network project funded by Nordic Innovation Centre and MedCoast Scandinavia. The demonstration on a porcine animal model was approved by the National Animal Research Authority.

Case Description:

The test procedure was performed in general anaesthesia. The airways were secured with tracheostomy, placement of an endotracheal tube and mechanical ventilation. A median sternotomy was made, and the epicardial accelerometers was sutured to apex and the anterior side of the heart corresponding to LAD. A chest tube was inserted in thorax through the thorax wall into the pleural cavity. ECG leads were attached externally on the animal’s torso.

Continuous display of vital signs was demonstrated and transferred as a video-conference to an auditorium at Rikshospitalet for an invited audience.

Episodes of various adverse circulatory events were be provoked with intravenous administration of vasoactive medications causing common and severe circulatory complications in clinical states as hypotension, hypertension, tachycardia and bradycardia.

Ischemic events were provoked by temporary obstruction of blood flow in LAD to facilitate pathological cardiac contractions and evaluate corresponding quality of real-time monitoring.

The novel drainage system displayed continuous measurements formerly only available by observation. The accelerometer had the potential beat to beat detection of local cardiac ischemia.

Measured Parameters:

Continous ECG and heart rate variability, continuous systemic arterial blood pressure, pleural pressure and air leakage over time, accelerometer detecting cardiac contraction and rotation. All parameters are measured and stored in high resolution as synchronized data corresponding to state of the art monitoring devices.

More information at http://www-bwsn.net