Apparatus and method for blood pressure measurement by touch
OwnerHaruhiko Asada, Aleksandar Marinkovic +2inventors
InventorsHaruhiko Asada, Aleksandar Marinkovic, Andrew Reisner, Phillip Shaltis
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Abstract
An arterial blood pressure apparatus and methods for using the apparatus are disclosed. The apparatus has a force transfer element for applying unidirectional force to a body part of the subject and a pressure sensor for generating a signal based on the unidirectional force. Multiple degrees of force may be applied simultaneously or serially. The apparatus also has a second sensor for generating a signal associated with blood volume within a blood vessel of the body part and a processor for inferring arterial blood pressure from the force sensor signal and the second sensor. The apparatus may take the form of a glove or a wand.
Claims31
An apparatus for measuring arterial blood pressure in a subject, the apparatus comprising:
- a. a force transfer element for applying unidirectional force to a body part of the subject;
- b. a first sensor detecting a signal in response to the unidirectional force;
- c. a second sensor detecting a signal associated with blood volume within a blood vessel of the body part;
- and
- d. a controller for inferring arterial blood pressure from the sensor signals.
A method for measuring arterial blood pressure in a subject, the method comprising:
- a. applying a pressure in a force direction substantially normal to the surface of a body part of the subject;
- b. measuring the pressure applied;
- b. detecting a sensor signal at the surface of the body part;
- c. inferring arterial blood pressure from the sensor signal and the applied pressure.
Dependencies are inferred from the claim text.