Study of noninvasive measurement of venous pressure

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 fix...

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Bibliographic Details
Published inSheng wu yi xue gong cheng xue za zhi Vol. 19; no. 1; p. 178
Main Authors Zhu, Shaihong, Liu, Xunyang, Huang, Feizhou, Nie, Wanpin, Liu, Bo, Li, Ruizheng, Cai, Lifeng, Yang, Minshi
Format Journal Article
LanguageChinese
Published China 01.01.2002
Subjects
Animals
Blood Pressure Determination - instrumentation
Dogs
Equipment Design
In Vitro Techniques
Venous Pressure - physiology
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Summary: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.
ISSN:1001-5515