PROBLEM TO BE SOLVED: To accurately, intuitively and obviously measure MED and MPD.SOLUTION: This ultraviolet medical treatment apparatus includes an ultraviolet lamp 11, a porous plate 3 having a plurality of window holes which can individually be opened/closed, an ultraviolet power measuring section 12 which repeatedly measures ultraviolet power, a distance measuring section 13 which measures the distance from the ultraviolet lamp to a subject, an irradiation energy calculating section 26 which calculates the irradiation energy from the ultraviolet power, the distance, and the irradiation time, a specified signal outputting section 27 which compares the irradiation energy with each of a plurality of target energies in order, and outputs a specified signal every time when the irradiation energy reaches each target energies, a porous plate controlling section 28 which outputs a signal for closing the plurality of the window holes sequentially to the porous plates for each output of specified signals, and a display section 29 which displays a plurality of window hole marks by the same arrangement as the arrangement of the plurality of the window holes, displays numeral figures indicating values of target energies for each of the plurality of the window holes, and the sequence for closing the window holes, and changes the display aspects of the plurality of the window hole marks by the same sequence as the sequence for closing the window holes every time when a specified signal is outputted.COPYRIGHT: (C)2010,JPO&INPIT【課題】MED、MPDを正確に且つ直感的に分かりやすく測定すること。【解決手段】紫外線治療器は、紫外線ランプ11と、個々に開閉可能な複数の窓孔を有する多孔板3と、紫外線パワーを繰り返し測定する紫外線パワー測定部12と、紫外線ランプから被検体までの距離を測定する距離測定部13と、紫外線パワーと距離と照射時間から照射エネルギーを計算する照射エネルギー計算部26と、照射エネルギーを複数の目標エネルギー各々に順番に比較し、照射エネルギーが目標エネルギー各々に達するごとに特定信号を出力する特定信号出力部27と、特定信号の出力ごとに複数の窓孔を順番に閉じるための信号を多孔板に出力する多孔板制御部28と、複数の窓孔の配列と同じ配列で複数の窓孔マークを表示し、複数の窓孔それぞれの目標エネルギーの数値及び窓孔を閉じる順番を表す数字を表示し、特定信号が出力されるごとに窓孔を閉じる順番と同じ順番で複数の窓孔マークの表示態様を変化させていく表示部29とを具備する。【選択図】図1
