Blood Pressure Measuring Cuffs and a Blood Pressure Measuring Device

A blood pressure measuring device comprised of:

• an inner cuff to be inserted into the acoustic canal and an outer cuff to be placed on the outer surface of the tragus,
• a holding means which holds said inner cuff and said outer cuff,
• a pulse wave detection means installed in at least one of said inner cuff and said outer cuff, and detects pulse wave signals from blood flowing through blood vessels,
• a pressuring and depressurizing, which applies or decreases pressure using a fluid body including air to said inner cuff and outer cuff that are pinching the tragus,
• ducts for supplying a fluid body connecting said inner cuff and said outer cuff to said pressure adjusting means,
• a pressure detecting means which detects pressures of said inner cuff and said outer cuff, and a blood pressure measurement controlling means which measures blood pressure from said pulse wave signals,
• wiring which connects said pulse wave detecting means and said blood pressure measurement controlling means,
• where said inner cuff and outer cuff are comprised of:
• said cuff member connected with said ducts, and a cuff bladder fixed onto said cuff member in an air-tight manner and a body which can expand and shrink, and forms a pressing surface shaped like a protrusion on the lid of said cuff bladder.