Design of continuous-monitoring device based on membrane extraction with sorbent interface and micro-gas chromatograph

2001 ◽  
Vol 5 (1-2) ◽  
pp. 69-74 ◽  
Author(s):  
Ionel Ciucanu ◽  
Janusz Pawliszyn
Keyword(s):  
Continuous Monitoring ◽  
Membrane Extraction ◽  
Monitoring Device ◽  
Gas Chromatograph

Continuous monitoring device for the collection of 23 volatile organic priority pollutants

1986 ◽  
Vol 58 (7) ◽  
pp. 1529-1532 ◽  
Author(s):  
Roger D. Blanchard ◽  
James K. Hardy
Keyword(s):  
Continuous Monitoring ◽  
Monitoring Device ◽  
Priority Pollutants ◽  
Volatile Organic

Reconstruction of 12-lead ECG Using a Single-patch Device

2017 ◽  
Vol 56 (04) ◽  
pp. 319-327 ◽  
Author(s):  
Hong J. Lee ◽  
Dong S. Lee ◽  
Hyun B. Kwon ◽  
Do Y. Kim ◽  
Kwang S. Park
Keyword(s):  
Continuous Monitoring ◽  
Correlation Coefficients ◽  
Electrode System ◽  
Monitoring Device ◽  
Ecg Monitoring ◽  
Suggested Approach ◽  
Reconstruction Performance ◽  
Electrode Combination ◽  
The Mean ◽  
Better Than

SummaryObjectives: The aim of this study is to develop an optimal electrode system in the form of a small and wearable single-patch ECG monitoring device that allows for the faithful reconstruction of the standard 12-lead ECG.Methods: The optimized universal electrode positions on the chest and the personalized transformation matrix were determined using linear regression as well as artificial neural networks (ANNs). A total of 24 combinations of 4 neighboring electrodes on 35 channels were evaluated on 19 subjects. Moreover, we analyzed combinations of three electrodes within the four-electrode combination with the best performance.Results: The mean correlation coefficients were all higher than 0.95 in the case of the ANN method for the combinations of four neighboring electrodes. The reconstructions obtained using the three and four sensing electrodes showed no significant differences. The reconstructed 12-lead ECG obtained using the ANN method is better than that using the MLR method. Therefore, three sensing electrodes and one ground electrode (forming a square) placed below the clavicle on the left were determined to be suitable for ensuring good reconstruction performance.Conclusions: Since the interelectrode distance was determined to be 5 cm, the suggested approach can be implemented in a single-patch device, which should allow for the continuous monitoring of the standard 12-lead ECG without requiring limb contact, both in daily life and in clinical practice.

scholarly journals Use of a Noninvasive Continuous Monitoring Device in the Management of Atrial Fibrillation: A Pilot Study

2012 ◽  
Vol 36 (3) ◽  
pp. 328-333 ◽  
Author(s):  
MICHAEL A. ROSENBERG ◽  
MICHELLE SAMUEL ◽  
AMIT THOSANI ◽  
PETER J. ZIMETBAUM
Keyword(s):  
Atrial Fibrillation ◽  
Pilot Study ◽  
Continuous Monitoring ◽  
Monitoring Device
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