The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2020
Filed:
Aug. 18, 2017
Apple Inc., Cupertino, CA (US);
Thomas J. Sullivan, Cupertino, CA (US);
Wren Nancy Dougherty, San Francisco, CA (US);
Richard C. Kimoto, Cupertino, CA (US);
Erno Klaassen, Cupertino, CA (US);
Ravi Narasimhan, Sunnyvale, CA (US);
Stephen J. Waydo, Cupertino, CA (US);
Todd K. Whitehurst, Cupertino, CA (US);
Derek Park-Shing Young, Cupertino, CA (US);
Santiago Quijano, Cupertino, CA (US);
Zijing Zeng, Cupertino, CA (US);
Other;
Abstract
Wrist-worn devices and related methods measure a pulse transit time non-invasively and calculate a blood pressure value using the pulse transit time. A wrist-worn device include a wrist-worn elongate band, at least four EKG or ICG electrodes coupled to the wrist-worn device for detecting a ventricular ejection of a heart, a photo-plethysmogram (PPG) sensor coupled to the wrist-worn device for detecting arrival of a blood pressure pulse at the user's wrist, and a controller configured to calculate a pulse transit time (PTT) for the blood pressure pulse. The controller calculates one or more blood pressure values for the user based on the PTT.