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Publications (15)
In the previous years, it has been shown that ionic liquids (IL) are good candidates as base material for thermo-electric generators (TEG). Having identified promising ILs, the next step is building a module integrating those liquids and enabling its use with consumer devices. To keep the flexibility given by a liquid TEG, all the involved material...
In previous work it was shown that Ionic Liquids as active substances in thermoelectric generators have the potential to reduce the thermal conductivity as compared to Solid State materials used in conventional TEGs. Furthermore, it was observed that the Seebeck coefficient could be significantly increased. After a large variety of experiments, it...
This report describes the initial clinical results with a newly designed guiding catheter and an 'over the wire' pacing lead based on angiolasty technology to stimulate the left ventricle using the transvenous route via the coronary sinus (OTW-CV lead).
In 75% of the 15 patients (6 males, 9 females, mean age of 53 +/- 9 years) with congestive heart...
Atrio-biventricular pacing (ABP) has recently been proposed for treating patients (pts) with drug refractory heart failure (HF) and intraventricular conduction delay (ICD). The aim of this study was to evaluate long-term effects of ABP on cardiac performance and clinical status in pts with severe congestive HF and ICD. Inclusion criterias were chro...
Atrio-biventricular pacing (ABP) has recently been proposed for treating patients (pts) with drug refractory heart failure (HF) and intraventricular conduction delay (ICD). The aim of this study was to evaluate long-term effects of ABP on cardiac performance and clinical status in pts with severe congestive HF and ICD. Inclusion criterias were chro...
Pressure measuring systems using fluid-filled catheters can result in the recording of distorted pressure waveforms. It results in phase delay, overestimation of systolic and, to a lesser extent, of diastolic pressure. We designed and evaluated a method to correct this pressure waveform distortion using an appropriate transfer equation obtained fro...
We tested the hypothesis that right heart failure during endotoxin shock may result from altered ventriculovascular coupling responsible for impeding power transfer to the pulmonary circulation.
The changes in vascular pulmonary input impedance and right ventricular contractility produced by low-dose endotoxin infusion were studied in 6 intact anes...
In 11 anaesthetised pigs the accuracy of the three-element (WK3) and the four-element (WK4) Windkessel models to describe hemodynamic properties of the pulmonary circulation was compared during six different experimental conditions increasing pulmonary arterial pressure: increase in left atrial pressure, increase in alveolar pressure, increase in p...
Fluid-filled catheter-pressure transducer systems are often used
to measure pressure in the arterial system. An index is proposed to
appreciate, in such systems, the distortion of input impedance at each
frequency. Effects on the evaluation of input impedance and some usual
derived parameters such as zero-phase frequency, distance to the
effective...