Vibratory screening or diagnostic systems

Details Vibratory screening or diagnostic systems Vibratory screening or diagnostic systems

1988-04-20

1991-03-26

Green, Randall L.

Surgery

Truss

Pad

128744, 73663, A61B 1500

Patent

active

050020650

ABSTRACT:
A method of (and apparatus for) diagnosing a patient to measure sensory disturbances of the patient that includes the steps of applying normalized vibrator forces to a body portion or part (e.g., the finger) of the patient; automatically effecting discrete, but variable, vibrations of the body portion over a wide range of frequencies and at various vibratory amplitude levels at each vibration frequency; and noting the onset of sensory perception by the patient on an up-cycle at each vibration frequency and correlating the information, so derived, with the physical condition of the body portion or part. The method contemplates, once the onset of vibratory perception is achieved, in an up-cycle, decreasing the amplitude of vibration at each vibration frequency until the patient ceases or fails to sense the vibration and, in part, correlating the lower level of sensory perception to the condition of the body portion or part.

REFERENCES:
patent: 4175546 (1979-11-01), Goldblatt et al.
patent: 4641661 (1987-02-01), Kalarickal
Lundborg et al., "Digital Vibrogram: A New Diagnostic Tool for Sensory Testing in Compression Neuropathy", Journal of Hand Surgery, vol. 11A, No. 5, pp. 693-699, Sep. 1986.
Borg et al., "Increase of Vibration Threshold during Wrist Flexion in Patients with Carpal Tunnel Syndrome", Pain, 26, pp. 211-219, 1986.
Hansford et al., "Blood Flow Changes at the Wrist in Manual Workers after Operative Interventions", Journal of Hand Surgery, vol. 11A, No. 4, pp. 503-508, Jul. 1986.

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