| 摘要 |
<p>There is disclosed an electronic sphygmomanometer comprising : an electric pump (26) driven by a battery (34); a pressure sensor for detecting a pulse and the air pressure inside a cuff which is pressurized by the electric pump; a constant rate air-bleed valve (5) for reducing the pressure in the cuff at a constant rate; and a display device (33) for displaying the systolic and diastolic blood pressure values of a patient whose blood pressure is being measured, these values being calculated based on the air pressure and the pulse which is detected; wherein the constant rate air-bleed valve (27c) comprises: an air-bleed valve casing (5) of which one end is joined to an air pipe (20) connected to the cuff (19) and the other end is open to atmosphere; a tubular member (10) formed from an elastic member positioned in the air-bleed valve casing so that one end, which is provided with a slit (11) is closed while the other end is open to atmosphere, and the one end of the tubular members extends up to the side end of the air-bleed valve casing; and a regulating member (6) which is set to press against the outer peripheral surface close to one end of the tubular member and can be regulated from the outside of the air-bleed valve casing. <IMAGE></p> |
