Surgery – Diagnostic testing – Measuring anatomical characteristic or force applied to or...
Patent
1997-01-28
1999-04-27
Hindenburg, Max
Surgery
Diagnostic testing
Measuring anatomical characteristic or force applied to or...
600552, 600595, 601108, 606237, A61B 500
Patent
active
058975101
ABSTRACT:
A non-invasive method for determining the dynamic biomechanical characteristics (frequency response functions and natural frequency) of a musculoskeletal structure is provided. The method generally comprises exciting the musculoskeletal structure over a broad range of frequencies with a low amplitude, high velocity impulsive input force, measuring the input force with a force transducer, detecting the output motion response with an output transducer, processing input force and output response data into time-signal histories with a data acquisition and analysis means or digital computer, transforming the time-signal histories from the time domain to the frequency domain by applying Fourier analysis; and calculating a frequency response function and the natural frequency from the input force and dynamic output response time-signal histories. Having identified the natural frequency of the musculoskeletal structure, the clinician can then mobilize the structure at that frequency in order to maximize the effectiveness of spinal therapy. A hand-held, manually operated impact device for delivering a near optimal, low amplitude, high velocity, impulsive input force over a broad range of frequencies and characterized by a generally half-sinusoidal waveform is also provided.
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Fuhr Arlan W.
Keller Tony S.
Lehneman James B.
Activator Methods, Inc.
Hindenburg Max
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