Study of noninvasive measurement of venous pressure / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 178-180, 2002.
Article
in Chinese
| WPRIM
| ID: wpr-334337
ABSTRACT
A new device that allows noninvasive measurement of venous pressure has been invented in our laboratory and tested for its feasibility and validity. The device consists of four parts 1. the air infusion system; 2. the pressure sensor gauge; 3. signal transducer and data processing system 4. the fixing apparatus. The correlation between noninvasive pressure and invasive pressure has been studied in vitro test on a saphenous vein model and in vitro test on dog's portal venous system. In vitro and vivo study, an excellent correlation between noninvasive pressure and invasive pressure was obtained(r = 0.99, P < 0.0005; r = 0.97, P < 0.005). These data suggest that the new device allows a noninvasive measurement of venous pressure especially for the large veins such as vena cava, venae pulmonales and esophageal varices.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Physiology
/
Venous Pressure
/
Blood Pressure Determination
/
In Vitro Techniques
/
Equipment Design
Limits:
Animals
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2002
Type:
Article
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