Patent ID: 7044922
Filing Date: 2006-05-16
Classification: A61B

Abstract:
1. A non-invasive apparatus for detecting turbulent flow in a cerebrovascular system of a patient, comprising: a stethoscope head adapted to be placed against a body of the patient; a first transducer in said head for detecting an acoustic signal from a cerebrovascular system of the patient and converting said acoustic signal to an electrical signal; a filter for passing only a portion of said electrical signal having a frequency in a range only between 350 Hz and 1,800 Hz as a filtered electrical signal and preventing passing of any signals less than 350 Hz and any signals greater than 1,800 Hz, so as to eliminate extraneous signals due to other than cerebrovascular flow; a headset having at least one ear piece; and a second transducer for converting said filtered electrical signal to an audio signal and supplying said audio signal to said headset in order to detect said turbulent flow in the cerebrovascular system of the patient.