Patent ID: 8246547
Filing Date: 2012-08-21
Classification: A61B,G01R

Abstract:
1. A package for an apparatus that non-invasively monitors blood flow of an object, comprising: a magnetic source that produces a localized, uni-directional, and constant magnetic field; a signal acquisition module with a magnetic sensor, wherein the magnetic sensor is disposed within the localized, uni-directional, and constant magnetic field and detects the modulations of the localized, uni-directional, and constant magnetic field caused by the blood flow in a blood vessel near the skin surface of the object; and a gaseous damping cushion, wherein the magnetic source is disposed within or onto the gaseous damping cushion; such that the gaseous damping cushion enables the modulations of the localized, uni-directional, and constant magnetic field of the magnetic source caused by the blood flow to be amplified and/or propagated, and isolated from external noises.