FIELD: medicine.
SUBSTANCE: group of inventions refers to medicine, and may be used for blood pressure control. A diaphragm pump for lower gas pressure pulsation. A diaphragm pump (1) is used for gas transmission with the volume change of a pump chamber (12). The diaphragm pump (1) comprises a drain valve (30) enabling a gas flow from the pump chamber (12) and preventing its back flow. The gas from the pump chamber (12) flows in an air chamber (41) through the drain valve (30). An outlet port (43) is used to gas discharge in the diaphragm pump (1). A portion (44) of a through hole is used to limit a flow rate from the air chamber (41) into the outlet port (43). A monitor is used for blood pressure control. The monitor comprises a cuff attached to a pressure measurement point. It has an elastic cylinder, the above diaphragm pump, a pressure detector and a blood pressure measurement unit.
EFFECT: ensured lower gas pressure pulsation.
4 cl, 7 dwg
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