Position detection of blood pressure device
AssigneeFitbit, Inc.
InventorsXi Zhang, Keith Adam Wong, Andrew Larsen Axley, Dan Stefan Tudose, Conor Joseph Heneghan
Life of this patent
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Abstract
An aspect of the disclosure pertains to detecting a position of a blood pressure measurement device. An inflatable bladder of the blood pressure measurement device defines, at least in part, a pressurizable volume. The inflatable bladder may be inflated to pressurize a user's appendage and temporarily occlude blood flow in the user's appendage. A pump may initiate inflation of the inflatable bladder when one or more accelerometers and/or one or more proximity sensors determine that the blood pressure measurement device is within sufficient proximity or elevation to a user's heart and stationary.
Claims20
A device for estimating a user's blood pressure, the device comprising:
- an inflatable bladder defining, at least in part, a pressurizable volume;
- a pump in fluidic communication with the inflatable bladder and configured to pressurize the pressurizable volume and cause the inflatable bladder to inflate and contact a user's appendage when the pump is activated;
- a pressure sensor in fluidic communication with the inflatable bladder and configured to produce pressure data indicative of pressure within the pressurizable volume as a function of time;
- and
- one or more accelerometers, wherein the one or more accelerometers are configured to determine relative positioning of the device with respect to a user's heart.
A device for estimating a user's blood pressure, the device comprising:
- an inflatable bladder defining, at least in part, a pressurizable volume;
- a pump in fluidic communication with the inflatable bladder and configured to pressurize the pressurizable volume and cause the inflatable bladder to inflate and contact a user's appendage when the pump is activated;
- a pressure sensor in fluidic communication with the inflatable bladder and configured to produce pressure data indicative of pressure within the pressurizable volume as a function of time;
- and
- one or more proximity sensors, wherein the one or more proximity sensors are configured to determine that the device is positioned proximate to a user's heart.
Dependencies are inferred from the claim text.