Non-invasive diagnostic apparatus and method comprising a cerebral stethoscope for detecting cerebrovascular disease
First Claim
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.
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Accused Products
Abstract
A non-invasive apparatus for detecting turbulent flow in a cerebrovascular system of a patient without use of software, includes a planar, circular head adapted to be placed against an eye socket of the patient. A microphone in the head detects an acoustic signal from the cerebrovascular system and converts the acoustic signal to an electrical signal. A filter passes only a portion of the electrical signal having a frequency in a range between 350 Hz and 1,800 Hz as a filtered electrical signal, so as to eliminate extraneous signals due to other than vascular flow. A headset has at least one ear piece with a speaker therein for converting the filtered electrical signal to an audio signal in order to detect the turbulent flow in the cerebrovascular system of the patient.
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Citations
17 Claims
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1. A non-invasive apparatus for detecting turbulent flow in a cerebrovascular system of a patient, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A non-invasive apparatus for detecting turbulent flow in a cerebrovascular system of a patient, comprising:
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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 between 350 Hz and 1,800 Hz as a filtered electrical signal, so as to eliminate extraneous signals due to other than vascular flow; a headset having at least one ear piece; 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; a plateau mounted to one side of said head; and holding pieces mounted to said plateau such that a person can hold said head to the body of the patient by the holding pieces without the microphone picking up acoustic signals from the person holding the holding pieces. - View Dependent Claims (12)
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13. A non-invasive method for detecting turbulent flow in a cerebrovascular system of a patient, comprising the steps of;
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detecting an acoustic signal from a cerebrovascular system of the patient; converting said acoustic signal to an electrical signal; filtering said electrical signal by the step of passing only a portion of said electrical signal having a frequency only in a range 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; converting said filtered electrical signal to an audio signal; and supplying said audio signal to a headset in order to detect said turbulent flow in the cerebrovascular system of the patient. - View Dependent Claims (14, 15, 16, 17)
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Specification