PROBLEM TO BE SOLVED: To provide a device for continuous circular capsulorhexis of a crystalline lens, the device that can make incision of a thin film in a regular circle of a desired diameter and is portable.SOLUTION: A device 100 for continuous circular capsulorhexis of a crystalline lens includes: an incision part 3 for making an incision of a crystalline lens anterior capsule a cylindrical part 10B for receiving the incision part 3 a moving part 2 for making the incision part 3 reciprocate in the inside and outside of the cylindrical part 10B and an opening/closing part 4 for opening and closing the incision part 3 into a first form of being closed along the advancing/retracting direction of the moving part 2 and a second form of being opened in the circle while being projected from the tip of the cylindrical part 10B. The opening/closing part 4 has a supporting part for supporting a tip 25A of the opening/closing part 4 and the incision part 3. In the second form, the tip 25A of the opening/closing part 4 forms a circular center, and the supporting part supports a point perpendicular to the advancing/retracting direction of the moving part 2 of the incision part 3.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】所望の径の正円に薄膜を切開することができる、携帯可能な水晶体前嚢切開具を提供する。【解決手段】水晶体前嚢切開具100は、水晶体前嚢を切開する切開部3と、切開部3を収納する円筒部10Bと、円筒部10Bの内外に切開部3を進退させる移動部2と、切開部3を、移動部2の進退方向に沿って閉じた第1の形態と円筒部10Bの先端から突出した状態で円に開いた第2の形態とに開閉させる開閉部4とを備え、開閉部4は、開閉部4の先端25Aと切開部3を支持する支持部を有する。第2の形態において、開閉部4の先端25Aは、円の中心を形成し、且つ支持部が、切開部3の移動部2の進退方向に対して直交する点を支持する。【選択図】図1
