Patent ID: 11911550
Assignee: TERUMO KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC A  G  H | IPC A  H

Claim 0:
1. A pressure measuring device configured for installation in a circulation circuit having a conduit for transferring a pumped liquid medium so as to measure a pressure of the pumped liquid medium inside the circulation circuit, comprising:
a main body portion adapted to detachably and movably mount onto an outer periphery of the conduit;
an elastically-deformable pressure receiver body within the main body portion adapted to deform according to the pressure of the pumped liquid medium;
a polarizer disposed in the main body portion so that light oscillating in a predetermined direction passes therethrough;
an image acquisition unit disposed in the main body portion to acquire image information of the elastically-deformable pressure receiver body through the polarizer as the elastically-deformable pressure receiver body is deformed in response to the pressure of the pumped liquid medium; and
a control unit configured to convert the image information acquired by the image acquisition unit into pressure information.