Ultrasonic densitometer device and method

Surgery – Truss – Pad

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12866006, 73597, 73599, A61B 800

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active

050998498

ABSTRACT:
An ultrasound densitometer for measuring the physical properties and integrity of a member in vivo includes a transmit transducer from which acoustic signals are transmitted, and a receive transducer which receives the acoustic signals after they have been transmitted through the member and/or a material with known acoustic properties. The densitometer allows the physical properties of a member to be measured without having to determine the distance between the transducers. The densitometer is able to measure the physical properties and integrity of the member from the transit time of acoustic signals through the member and/or by determining the absolute attenuation of at least one specific frequency component of acoustic signals transmitted through the member.

REFERENCES:
patent: 2439130 (1948-04-01), Firestone
patent: 3345863 (1967-10-01), Henry et al.
patent: 3477422 (1969-11-01), Jurist, Jr. et al.
patent: 3587561 (1971-06-01), Ziedonis
patent: 3648685 (1972-03-01), Hepp et al.
patent: 3664180 (1972-05-01), McDonald et al.
patent: 3713329 (1973-01-01), Munger
patent: 3782177 (1974-01-01), Hoop
patent: 3847141 (1974-11-01), Hoop
patent: 4048986 (1977-09-01), Ott
patent: 4056970 (1977-11-01), Sollish
patent: 4105018 (1978-08-01), Greenleaf et al.
patent: 4138999 (1979-02-01), Eckhart et al.
patent: 4217912 (1980-08-01), Hubmann et al.
patent: 4233845 (1980-11-01), Pratt, Jr.
patent: 4235243 (1980-11-01), Saha
patent: 4250895 (1981-02-01), Lees
patent: 4316183 (1982-02-01), Palmer et al.
patent: 4361154 (1982-11-01), Pratt, Jr.
patent: 4421119 (1983-12-01), Pratt, Jr.
patent: 4476873 (1984-10-01), Sorenson et al.
patent: 4522068 (1985-01-01), Smith
patent: 4530360 (1985-07-01), Duarte
patent: 4597292 (1986-07-01), Fujuii et al.
patent: 4669482 (1987-06-01), Ophir
patent: 4774959 (1988-10-01), Palmer
C. M. Langton, S. B. Palmer, and R. W. Porter, "The Measurement of Broadband Ultrasonic Attenuation in Cancellous Bone", Eng. Med., vol. 13, pp. 89-91 (1984).
S. Lees, "Sonic Properties of Mineralized Tissue", Tissue Characterization with Ultrasound, CRC Publication 2, pp. 207-226 (1986).
J. D. Craven, M. A. Constantini, M. A. Greenfield, and R. Stern, "Measurement of the Velocity of Ultrasound in Human Cortical Bone and Its Potential Clinical Importance", Investigative Radiology, vol. 8, pp. 72-77 (1973).
C. Rich, E. Klink, R. Smith, B. Graham, and P. Ivanovich, "Sonic Measurement of Bone Mass", Progress in development of Methods in Bone Densitometry, pp. 137-146, (NASA 1966).
M. Greespan and C. E. Tschiegg, "Sing-Around Ultrasonic Velocimeter for Liquids", The Review of Scientific Instruments, vol. 28, No. 11, pp. 897-901 (1957).
W. Abendschein and G. W. Hyatt, "Ultrasonics and Selected Physical Properties of Bone", Clinical Orthopedics and Related Research, No. 69, pp. 294-301 (1970).
M. Gerlanc, D. Haddad, G. Hyatte, J. Langloh, and P. St. Hilaire, "Ultrasonic Study of Normal and Fractured Bone", Clinical Orthopedics and Related Research, pp. 175-180, (1975).
B. Martin and R. R. Haynes, "The Relationship Between the Speed of Sound and Stiffness of Bone", Biomechanics Laboratories, West Virginia University (1970).
J. M. Hoop and W. N. Clotfelter, "Ultrasonic Bone Density Measurements", Marshall Space Flight Center, The Fall Conference of the American Society for Nondestructive Testing (1970).
K. H. Okumura, "Preventative Diagnosis of Breakdown", Massachusetts Institute of Technology (1978).
W. N. McDicken, Diagnostic Ultrasonics, pp. 35-61 (1976).
Lees, S. and C. Davidson, "The Role of Collagen in the Elastic Properties of Calcified Tissues", C. Journal of Biomechanics, vol. 10, No. 7 (1977), pp. 473-486.
Van Venrooij, G. "Measurement of Ultrasound Velocity in Human Tissue", Ultrasonics, Oct. (1971), pp. 240-242.
Lang, S. "Ultrasonic Method for Measuring Elastic Coefficients of Bone and Results on Fresh and Dried Bovine Bones", IEEE Transactions on Bio--Medical and Engineering, vol. BME-17, No. 2 (Apr. 1970), pp. 101-105.
Martin B. and R. Haynes, "The Investigation of Bone's Substructure Using Megahertz Sound and a Porous Model", ASME Publication (Dec. 3, 1970).
Brown, S. A. and M. B. Mayor, "Ultrasonic Prediction of Delayed or Nonunion of Fractures", Proceedings of the Fifth New England Bioengineering Conference (Apr. 15, 1977), pp. 229-233.
Brown, S. A. and M. B. Mayor, "Ultrasonic Assissment of Early Callus Formation", Biomedical Engineering, vol. 11, No. 4 (Apr. 1976), pp. 124-128.
Yamada, H., "Strength of Biological Materials", pp. 53-57 (1970).
Wells, P. N. T., "Physical Principals of Ultrasonic Diagnosis", Academic Press, London (1969), pp. 1-27.
Mather, B. S., "Comparison of Two Formulae in Vivo Prediction of Strength of the Femur", Aerospace Medicine, vol. 38, No. 12 (Dec. 1967), pp. 1270-1272.
Rossman, P. J., "Measurements of Ultrasonic Velocity and Attenuation in the human os calcis and their relationship photon absorptiometry bone mineral measurements", Master's Thesis, University of Wisconsin--Madison, 1987.
Hellhake, P. R. et al., "A computer aided diagnostic ultrasound system for vivo analysis of bone strength", presented 1984.

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