Patents by Inventor Richard D. Wasnich

Richard D. Wasnich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4829549
    Abstract: The level of relative risk of osteoporosis in human subjects can be quickly determined by: measuring the bone mineral content of the os calcis (heel)--which is highly trabecular--and; assessing relative non-violent fracture risk at substantially all skeletal sites (both spinal and non-spinal) due to osteoporosis of the subject from the os calcis mineral content determination. The bone mineral content of a cortical bone site, such as the proximal radius (forearm), can also be determined. The densitometer apparatus includes a heel holding structure, or a forearm holding structure, which may be placed between a low energy source of gamma and/or x-rays, and a detector. The source and detector are mounted on a C-shaped yoke, which yoke can be moved horizontally and vertically during a rectilinear scan, and which can be rotated about a vertical axis when computed tomography (CT) capabilities are necessary.
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: May 9, 1989
    Inventors: John M. Vogel, Philip J. Manly, Richard D. Wasnich
  • Patent number: 4094317
    Abstract: A nebulization chamber, designed specifically for radioaerosols, for reducing mean particle size, increasing aerosol concentration, and minimizing dead space. Centrally and vertically disposed is a substantially cylindrical interaction chamber at the lower most portion of which is positioned a membrane-covered opening that serves as the liquid interface to a conventional ultrasonic nebulizer located thereunder. Positioned concentrically within the interaction chamber is an impaction sphere which acts to trap the nebulized aerosol bolus in a small, compact volume for efficient delivery to the patient. Larger aerosol particles are also impacted on the sphere to permit recovery thereof for re-nebulization. The upper end of the interaction chamber communicates with the patient's mouthpiece via a one-way valve.
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: June 13, 1978
    Inventor: Richard D. Wasnich