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Medical radiological apparatus including optical crosshair device for patient positioning and forearm and spinal positioning aides

  • US 5,835,562 A
  • Filed: 06/07/1995
  • Issued: 11/10/1998
  • Est. Priority Date: 11/22/1993
  • Status: Expired due to Fees
First Claim
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1. A medical radiological apparatus comprising:

  • a patient table having a length extending along a Y-axis and a width extending along an X-axis;

    an x-ray source on one side of the patient table;

    an x-ray detector on an opposite side of the table and aligned with the x-ray source along a source-detector axis;

    wherein the source and detector are movable relative to the patient table, and wherein the source, when selectively energized, emits a beam of x-rays which conforms to a beam plane which is transverse to both the X-axis and the Y-axis, to scan selectively selected regions of a patient on the table with the beam of x-rays; and

    an optical crosshair device that projects a visible crosshair toward the x-ray source and coaxial with the source-detector axis and having a plane along the Y-axis and a plane normal to the Y-axis, the optical crosshair device being adjacent the detector and movable with the detector relative to the table so that the visible crosshair is movable relative to a patient on the table.

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