PROBLEM TO BE SOLVED: To provide a capsular tension device which enables a zonule of Zinn to transmit slight contractions and relaxation of a ciliary muscle of a ciliary body to a lenticular capsule with accuracy and prevents the occurrence of secondary cataract.SOLUTION: A capsular tension device 1 which is set inside a lenticular capsule whose anterior capsule is incised in a cataract operation or the like includes: an annular front supporting part 11 provided in a state to make contact with an inner surface of the anterior capsule Sf an annular back supporting part 12 which is provided on a back side of the front supporting part 11 in a state to make contact with an inner surface of a posterior capsule Sb while facing the front supporting part 11 and a connecting part 13 which connects a peripheral edge part of the front supporting part 11 and a peripheral edge part of the back supporting part 12 in a state to have biasing force in a direction to separate the front supporting part 11 from the back supporting part 12. The front supporting part 11 presses the inner surface of the anterior capsule Sf, and the back supporting part 12 presses the inner surface of the posterior capsule Sb by the biasing force of the connecting part 13.COPYRIGHT: (C)2014,JPO&INPIT【課題】本発明は、チン小帯が毛様体の毛様体筋の僅かな収縮及び弛緩を水晶体嚢に精度良く伝達することができるとともに、後発白内障の発生を防止することができる水晶体嚢拡張ディバイスを提供することを目的とする。【解決手段】本水晶体嚢拡張ディバイス1は、白内障手術等で前嚢切開された水晶体嚢内に設置されるものであり、前嚢Sfの内面に接する態様で設けられる環状の前方支持部11と、前方支持部11の後方側において該前方支持部11と対向しながら後嚢Sbの内面に接する態様で設けられた環状の後方支持部12と、前方支持部11と後方支持部12を離間させる方向に付勢力を有する態様で前方支持部11の周縁部と後方支持部12の周縁部とを連結する連結部13とを備え、連結部13の付勢力により、前方支持部11が前嚢Sfの内面を押圧するとともに、後方支持部12が後嚢Sbの内面を押圧する。【選択図】図1
