Radiodiagnostic apparatus with semitransparent diaphragm
Patent 4672652 Issued on June 9, 1987. Estimated Expiration Date: 
January 2, 2006. 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.
January 2, 2006. 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 References 2943205 3402292 3631249 3755672 3912936 Contour detector and data acquisition system for the left ventricular outline Patent #: 4101961 InventorsAssigneeApplicationNo. 06/815702 filed on 01/02/1986US Classes:378/152, With linear leaf motion378/148, Plural selectable378/150, Variable378/151AutomaticExaminersPrimary: Church, Craig E.Assistant: Freeman, John C. Attorney, Agent or FirmInternational ClassesG21K 1/02 (20060101)H05G 1/64 (20060101) H05G 1/00 (20060101) A61B 6/06 (20060101) G21K 1/04 (20060101) Foreign Application Priority Data1985-01-11 DEAbstractThe invention relates to a radiodiagnostic apparatus with an x-ray tube, a diaphragm which is semitransparent at least areawise and which clears a slit variable in its width and letting the radiation go through, with an x-ray image intensifier and a television camera coupled thereto for the generation of video signals which is connected to a monitor for reproduction of the video signals. The diaphragm consists of several individual blades which abut against one another in parallel on both sides of the slit and are adjustable in longitudinal direction individually dependent on the size of the object to be viewed. To the television camera an evaluating circuit is connected which supplies a control signal obtained from the video signal to a setting device for the individual blades. | |
