Patent ID: 7572227
Filing Date: 2009-08-11
Classification: A61B

Abstract:
1. A blood pressure measuring apparatus comprising: an inner cuff to be inserted into an ear hole, and an outer cuff to be positioned outside a tragus; holding means for holding said inner cuff and said outer cuff; pulse wave detecting means incorporated into at least one of said inner cuff and said outer cuff to detect a pulse wave signal obtained by light from blood flowing through a blood vessel; pressurizing/depressurizing means for pressurizing and depressurizing said inner cuff and said outer cuff by using a fluid, after said inner cuff and said outer cuff clamp the tragus; a tube connected from said inner cuff and said outer cuff to said pressurizing/depressurizing means to supply the fluid; pressure detecting means connected to said tube to detect pressures of said inner cuff and said outer cuff; and blood pressure measurement control means for measuring a blood pressure value from the pulse wave signal, wherein said inner cuff and said outer cuff oppose each other, and a thickness of a lid portion of each of said inner cuff and said outer cuff is made larger than a thickness of a cylindrical portion.