Patent ID: 7066645

Claim:
A positioning device for use in radiography to position an X-ray cassette or a radiographic grid and X-ray cassette beneath a patient lying upon a bed or other support to enable an X-ray image of a portion of the patient to be taken; the device comprising: a plastics envelope formed of a material that is both substantially radiotranslucent and impervious to water or other biological fluids; the envelope defining first and second envelope sections separated from each other by a common edge; the first envelope section being generally rectangular in configuration and defining an openable pouch dimensioned to receive an X-ray cassette or radiographic grid and X-ray cassette therein; and the second envelope section having a stiffening member therein, the second envelope section having its greatest width along said common edge and narrowing to a minimum width at its edge furthest from said common edge, and the stiffening member within the second envelope section being generally wedge shape in section, whereby the second envelope section has a thickness that tapers from a maximum thickness approximating the thickness of a radiographic grid and X-ray cassette at its greatest width adjacent the common edge to a minimum thickness at said furthest edge.