Patents Examined by Anna Roberts
  • Patent number: 11219380
    Abstract: A blood pressure pulse wave measurement apparatus includes: first and second cuffs for pressing upper and lower limbs of a measurement subject; first and second detection units configured to detect first and second pulse waves transmitted from the cuffs through first and second tubes; and a control unit configured to calculate an ankle-brachial blood pressure ratio and a pulse wave velocity using the pulse waves. First and second delay elements are provided at specific positions in the lengthwise directions of the tubes. The first delay element delays a transfer characteristic of the first tube so the transfer characteristic of the first tube matches a transfer characteristic of a tube having a predetermined first reference length, and the second delay element delays a transfer characteristic of the second tube so the transfer characteristic of the second tube matches a transfer characteristic of a tube having a predetermined second reference length.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: January 11, 2022
    Assignee: OMRON HEALTHCARE CO., LTD.
    Inventors: Kazuhiro Matsui, Naoki Mori