Method and apparatus for analyzing material properties using ult

Surgery – Truss – Pad

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12866008, 73602, A61B 800

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active

051974754

ABSTRACT:
Apparatus is disclosed for investigating the mechanical properties of a solid material such as bone, including means for positioning the apparatus in proximity to a surface of the material, at least one emitting ultrasound transducer, at least one receiving ultrasound transducer positioned to received ultrasound waves that have been emitted and have contacted the surface of the material, means for varying the angle of incidence of the emitted ultrasound wave towards the material, means for determining the alignment of the surface of the material with respect to the emitting and receiving ultrasound transdsucers, and signal analyzer means coupled to the receiving transducer for determining at least one characteristic of the received ultrasound wave which is indicative of a mechanical property of the material. A method is also disclosed of using such apparatus. The present invention permits the quick and efficient evaluation of treatment for osteoporosis, and whether that treatment has in fact reduced the tendency of a patient's bones to fracture.

REFERENCES:
patent: 4094304 (1978-06-01), Wright
patent: 4098129 (1978-07-01), Deblaere
patent: 4361154 (1982-11-01), Pratt
patent: 4364273 (1982-12-01), Redding
patent: 4421119 (1983-12-01), Pratt
patent: 4437468 (1984-03-01), Sorenson et al.
patent: 4457311 (1984-07-01), Sorenson et al.
patent: 4458689 (1984-07-01), Sorenson et al.
patent: 4476873 (1984-10-01), Sorenson et al.
patent: 4682497 (1987-07-01), Sasaki
patent: 5038787 (1991-08-01), Autich et al.
Antich et al., J. Bone and Mineral Research, 6:417-426 (1991).
Antich et al., "A Novel Method for Characterizing Bone Strength at the Trabecular Level", Abstract 999, Journal of Bone and Mineral Research, 4 (Supplement): S367 (1989).
Zerwekh et al., "Intermittent Slow-Release Sodium Fluoride Therapy Produces Stronger Bone at the Microscopic Level", Abstract 998, Journal of Bone and Mineral Research, 4 (Supplement): S367 (1989).
Whiting, "Ultrasonic Critical Angle Reflection Goniometer for In Vitro Bone", Ultrasound in Medicine, 1629-1643 (Plenum: New York, 1977).
Mayer, Journal of Acoustical Society of America, 32:1213 (1960).
Mayer, Journal of Applied Physics, 34:909-911, (1963).
Lees, Ultrasonics, 213-215 (Sep., 1975).
Fountain, Journal of Acoustical Society of America, 42:242-247 (1967).
Mayer, Ultrasonics, 62-68 (Apr.-Jun., 1965).
Couchman et al., Ultrasonics, 69-71 (Mar., 1974).
Rollins, Journal of Acoustical Society of America, 44:431-434 (Feb., 1968).
Lees et al., J. Biomechanics, 5:557-566, (1972).
Weston-Bartholomew, Ultrasonics, 132-135 (May, 1973).
"Ultrasonic Bone Scanning Device", Biologue, p. 6 (1987-88).
Currey, Clinical Orthopedics and Related Research, 210-231 (Nov.-Dec., 1970).
Abendschein, Clinical Orthopedics and Related Research, 294-301 (Mar.-Apr. 1970).
Greenfield, Ultrasound, 115:163-166 (1975).
Greenfield, Radiation Physics, 138:701-710 (1981).
Craven, Investigative Radiology, 8:72-77 (1973).
Lees, Sonic Properties of Mineralized Tissues, Tissue Characterization with Ultrasound, Chap. 9, pp. 207-226 (1986).
Ashman et al., "Elastic Properties of Cancellous Bone: Measurement By An Ultrasonic Technique", 1986 SEM Spring Conference on Experimental Mechanics.
Ashman et al., J. Biomechanics, 17:349-361 (1984).
"Ultrasound Scanner Proving Effectiveness of Osteoporosis Drug", Center Times, p. 3 (May 1991).
Antich et al., "A Novel Technique for Assessing Mechanical Properties of Bone Material In Vitro By Ultrasound Reflection; Methodology and Comparison With Ultrasound Transmission", (in press).
Antich et al., "Measurement of Intrinsic Bone Strength In Vivo by Reflection Ultrasound; Correction of Impaired Strength With Slow Release Sodium Fluoride in Calcium Citrate", (in press).
Zerwekh et al, "Intermittent Slow-Release Fluoride Therapy Increases Material Strength of Bone as Assessed by Reflection Ultrasound Method", (in press).
Pak et al., "Fracture Incidence-Bone Density Relationship: A Reference for Interpreting the Effect of Slow-Release Sodium Fluoride Plus Calcium Citrate Treatement on Spinal Fracture Rate," (in press).

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