An　electronic　health　(e-health)　record　system　is　a　novel　application　that　will　bring　great　convenience　in　healthcare.　The　privacy　and　security　of　the　sensitive　personal　information　are　the　major　concerns　of　the　users,　which　could　hinder　further　development　and　widely　adoption　of　the　systems.　The　searchable　encryption　(SE)　scheme　is　a　technology　to　incorporate　security　protection　and　favorable　operability　functions　together,　which　can　play　an　important　role　in　the　e-health　record　system.　In　this　paper,　we　introduce　a　novel　cryptographic　primitive　named　as　conjunctive　keyword　search　with　designated　tester　and　timing　enabled　proxy　reencryption　function　(Re-dtPECK),　which　is　a　kind　of　a　time-dependent　SE　scheme.　It　could　enable　patients　to　delegate　partial　access　rights　to　others　to　operate　search　functions　over　their　records　in　a　limited　time　period.　The　length　of　the　time　period　for　the　delegatee　to　search　and　decrypt　the　delegator＇s　encrypted　documents　can　be　controlled.　Moreover,　the　delegatee　could　be　automatically　deprived　of　the　access　and　search　authority　after　a　specified　period　of　effective　time.　It　can　also　support　the　conjunctive　keywords　search　and　resist　the　keyword　guessing　attacks.　By　the　solution,　only　the　designated　tester　is　able　to　test　the　existence　of　certain　keywords.　We　formulate　a　system　model　and　a　security　model　for　the　proposed　Re-dtPECK　scheme　to　show　that　it　is　an　efficient　scheme　proved　secure　in　the　standard　model.　The　comparison　and　extensive　simulations　demonstrate　that　it　has　a　low　computation　and　storage　overhead.