Method and device for measuring anisotropic mechanical propertie

Details Method and device for measuring anisotropic mechanical propertie Method and device for measuring anisotropic mechanical propertie

1996-09-27

1998-01-13

Lateef, Marvin M.

Surgery

Truss

Pad

128774, 73579, A61B 800

Patent

active

057068151

ABSTRACT:
A device and method for measuring the anisotropic mechanical properties of tissue is provided. The device comprises a flexural resonator driven by a transducer to oscillate at a plurality of angles of oscillation while in contact with a tissue to be analyzed. The resonance frequencies and resonance peak widths for the flexural resonator are measured at each of the plurality of angles of oscillation. Based on these values and the free state resonance frequency of the oscillating flexural resonator, anisotropic mechanical properties of the tissue are derived. A pressure normalizing element is utilized to ensure secure and standardized contact between the flexural resonator and the tissue during the measurements. The method of the present invention provides for determining these anisotropic mechanical properties by measuring the free state resonance frequency of the flexural resonator, measuring the resonance frequencies and resonance peak widths for the resonator at a pluality of angles of oscillation while in contact with a tissue, calculating the mechanical properties corresponding to each of the angles of oscillation, and displaying these values in a useful manner. The method may be implemented as software by a microprocessor.

REFERENCES:
patent: 4144877 (1979-03-01), Frei et al.
patent: 4177798 (1979-12-01), Leveque et al.
patent: 4396025 (1983-08-01), De Rigal et al.
patent: 4771792 (1988-09-01), Seale
patent: 4777599 (1988-10-01), Dorogi et al.
patent: 4947851 (1990-08-01), Sarvazyan et al.
patent: 5099848 (1992-03-01), Parker et al.
patent: 5115808 (1992-05-01), Popovic et al.
patent: 5143072 (1992-09-01), Kantorovich et al.
patent: 5195521 (1993-03-01), Melton, Jr. et al.
patent: 5313946 (1994-05-01), Melton, Jr.
patent: 5533402 (1996-07-01), Sarvazyan et al.
Finlay, B., "Dynamic Mechanical Testing of Human Skin `In Vivo`", J. Biomechanics, 1970, 3, 557-568.
Clark, J.A. et al., "Mechanical Characterisation of Human Postburh Hypertrophic Skin During Pressure Therapy", J. Biomechanics, 1987, 20(4), 397-406.
Thacker, J.G. et al., "In vivo extensometer for measurement of the biomechanical properties of human skin", Rev. Sci. Instrum., 1977, 48, 181-185.
Sarvazyan, A.P., "Development of methods of precise ultrasonic measurements in small volumes of liquids", Ultrasonics, 1982, 151-154.
Patent Cooperation Treaty International Search Report dated Jan. 31, 1997, Int'l Application No. PCT/US96/15563.

Affiliated with

Also associated with

Rating

Method and device for measuring anisotropic mechanical propertie does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for measuring anisotropic mechanical propertie, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for measuring anisotropic mechanical propertie will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-318551