| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sphygmomanometer having a music generation mode, which reliably detects K (Korotkoff) sound and accurately measures a blood pressure by canceling noise, when a microphone receives music as noise. <P>SOLUTION: The sphygmomanometer 1 includes an arm band part 2 to be worn on the upper arm of a person to be measured, a pressurizing means 110 for pressurizing the inside of the arm band part 2, a control part 120, a pressure sensor 140 for detecting a pressure inside the arm band part 2, and pressure reducing means 111 and 112 for reducing the pressure inside the arm band part 2. The sphygmomanometer 1 receives pressure signals from the pressure sensor, controls the pressurizing means and the pressure reducing means by the control part 120, detects Korotkoff sound and measures the blood pressure. The sphygmomanometer 1 further includes: a microphone 125 for detecting the Korotkoff sound; a speaker 85 for generating music when measuring the blood pressure; and a music noise canceling filter 700 connected to the microphone 125, for canceling the frequency range BP of the music as noise from the frequency range AP of the Korotkoff sound and the frequency range BP of the music input to the microphone 125. <P>COPYRIGHT: (C)2012,JPO&INPIT |
