| 摘要 |
<p>This invention relates to an automatic sphygmomanometer equipped with a pressure pump for detecting a Korotkow sounds or cuff pulsation and recognizing the blood pressure, wherein an air supply noise elimination filter consisting of an air reservoir and a fluid resistor connected in series is disposed between the pressure pump and the cuff. While the air supply including the pulsation generated by the pressure pump is streamlined, the blood pressure is measured. Preferably, the fluid resistor comprises a fluid resistance member made of fiber or paper. Preferably, the automatic sphygmomanometer of the invention for detecting the Korotkow sounds or cuff pulsation and recognizing the blood pressure includes the air supply noise elimination filter consisting of the air reservoir and the fluid resistor connected in series, a bypass passage formed in the air supply noise elimination filter and a control means for making control such that when the cuff pressure is below a predetermined value, the air from the pressure pump is sent to the cuff through the bypass passage to quickly raise the cuff pressure and after a predetermined pressure is attained, the air from the pressure pump is sent to the cuff through the air supply noise elimination filter in order to raise the cuff pressure within a short time.</p> |
