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Method and device for tonometric blood pressure measurement

  • US 9,931,076 B2
  • Filed: 06/18/2014
  • Issued: 04/03/2018
  • Est. Priority Date: 06/18/2014
  • Status: Active Grant
First Claim
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1. A method for determining an artery location on a living subject'"'"'s skin and positioning a tonometry pressure sensor on the artery location for measuring blood pressure of the living subject, the method comprising:

  • determining, by a non-contact process of using an optical-sensing unit having a light source and an optical detector to scan the skin along a scan path thereon, a search region within the scan path such that an artery is predicted to lie under the search region;

    further determining a height profile characterizing the scan path'"'"'s curvature by the non-contact process; and

    searching for the artery location within the search region by a contact-based process of sweeping the pressure sensor along the search region, wherein the sweeping of the pressure sensor along the search region is guided by curvature information provided by the height profile.

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