Blood pressure monitor
device · 1896 · Electric age
Measuring blood pressure (Riva-Rocci; Korotkov’s method).
What it is made of
- Blood pressure cuff — has part. An inflatable cuff for the arm.
- Rubber inflation bulb — has part. It forces air in.
- Manometer — has part. It shows the pressure.
Principles and materials it uses
- Pressure — uses. Measuring pressure.
- Mercury — is made of. A column of mercury.
- Stethoscope — uses. Listening for the Korotkov sounds.
History: what it evolved from and what it influenced
- Manometer — evolved from. A blood pressure monitor is a manometer connected to a cuff: it measures the air pressure that squeezes the artery.
- Digital blood pressure monitor — evolved into. An automatic blood pressure monitor.