Bone assessment apparatus
May 20, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesBone evaluation method Densitometer for scanning os calcis for predicting osteoporosis Ultrasound method and apparatus for evaluating, in vivo, bone conditions Method and apparatus for the measurement of bone quality in vivo Ultrasonic transducer assembly Method and apparatus for analyzing material properties using ultrasound Ultrasonic bone analysis device and method Apparatus and method of measuring bone mineral density and bone strength Ultrasonic bone-assessment apparatus and method Patent #: 5259384 InventorsAssigneeApplicationNo. 063779 filed on 05/20/1993US Classes:600/407, Detecting nuclear, electromagnetic, or ultrasonic radiation73/597, Velocity or propagation time measurement378/54, Thickness or density analysis378/89, Thickness or density analysis600/439With therapeutic deviceExaminersPrimary: Pfaffle, K. M.Attorney, Agent or FirmForeign Patent References
International ClassesA61B 005/00A61B 006/00 A61B 008/00 Foreign Application Priority Data1992-05-20 JPAbstractAn apparatus for providing assessment indices related to bone strength which are useful in predicting the risk of bone fracture. The apparatus measures the mineral density of bone (BMD) by means of X-rays, while the propagation speed of sound V in the bone and bone thickness d are measured by means of ultrasonic waves. The bone mineral content per unit volume, i.e. the bone volume density ρ, is computed from the bone mineral density (BMD) and the thickness of the bone. An assessment value E is then computed based on V and ρ.Other References
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