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:
Nov. 20, 2012
Filed:
Mar. 20, 2009
Devin B. Mccombie, Solana Beach, CA (US);
Haruhiko H. Asada, Lincoln, MA (US);
Andrew T. Reisner, Newton, MA (US);
Devin B. McCombie, Solana Beach, CA (US);
Haruhiko H. Asada, Lincoln, MA (US);
Andrew T. Reisner, Newton, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
An apparatus and methods for adaptive and autonomous calibration of pulse transit time measurements to obtain arterial blood pressure using arterial pressure variation. The apparatus and methods give pulse transit time (PTT) devices an ability to self-calibrate. The methods apply a distributed model with lumped parameters, and may be implemented, for example, using pulse transit time measurements derived from a wearable photoplethysmograph (PPG) sensor architecture with an intervening pressurizing mechanism.