Development of an automatic pneumatic tourniquet system that determines pressures in synchrony with systolic blood pressure.
- Author:
Hongyun LIU
1
;
Kaiyuan LI
;
Zhengbo ZHANG
;
Junyan GUO
;
Weidong WANG
Author Information
1. Department of Medical Engineering & Supply Center, Chinese PLA General Hospital, Beijing 100853.
- Publication Type:Journal Article
- MeSH:
Blood Pressure;
Equipment Design;
Hemostatic Techniques;
instrumentation;
Humans;
Pressure;
Systole;
Tourniquets
- From:
Chinese Journal of Medical Instrumentation
2012;36(6):396-399
- CountryChina
- Language:Chinese
-
Abstract:
The correlation coefficients between arterial occlusion pressure and systolic blood pressure, diastolic blood pressure, limb circumference, body mass etc were obtained through healthy volunteer experiments, in which tourniquet were applied on upper/lower extremities. The prediction equations were derived from the data of experiments by multiple regression analysis. Based on the microprocessor C8051F340, a new pneumatic tourniquet system that can determine tourniquet pressure in synchrony with systolic blood pressure was developed and verified the function and stability of designed system. Results showed that the pneumatic tourniquet which automatically adjusts occlusion pressure in accordance with systolic blood pressure could stop the flow of blood to get a bloodless field.
