Patent ID: 11877883
Assignee: MIRISE TECHNOLOGIES CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A biological sound detection device comprising:
a housing;
a medium having an acoustic impedance closer to water than air;
a transducer unit that is arranged in the housing, and converts a biological sound transmitted through the medium into an electric signal;
a detection unit that provides, together with the housing, an accommodation region that accommodates the medium, detects the biological sound, transmits the biological sound to the medium, and is deformable in a direction approaching the transducer unit according to a load of a physical body; and
a pressure adjusting unit that adjusts a pressure of the medium so as to suppress an increase in the pressure of the medium due to deformation of the detection unit, wherein
the pressure adjusting unit, together with the housing and the detection unit, provides the accommodation region, and
the pressure adjusting unit expands the accommodation region so as to suppress the increase in the pressure of the medium,
the pressure adjusting unit expands the accommodation region by deformation, and
the pressure adjusting unit includes an air layer provided adjacently to the medium in the housing, and expands the accommodation region by reducing a volume of the air layer.