PROBLEM TO BE SOLVED: To provide a jig for vitrification cryopreservation which can ensure a vitrification cryopreservation work of ovum or embryo readily.SOLUTION: Provided is a jig for vitrification cryopreservation of ovum or embryo characterized by having a vitrified liquid absorber which has a haze value of not less than 40%, and a total light transmittance of not less than 60% when vitrified liquid is absorbed, and the vitrified liquid absorber has a piece of paper or nonwoven fabric whose density is 0.1-0.5 g/cm3 and basic weight is 10-100 g/m2.COPYRIGHT: (C)2015,JPO&INPIT【課題】卵子又は胚のガラス化凍結作業を容易にかつ確実に行うことが可能な、ガラス化凍結保存用治具を提供する【解決手段】ヘーズ値が40%以上であり、かつガラス化液を吸収したときの全光線透過率が60%以上であるガラス化液吸収体を有することを特徴とする卵子又は胚のガラス化凍結保存用治具。前記ガラス化液吸収体が、紙、又は不織布を有し、紙の密度が0.1~0.5g/cm3、かつ坪量が10~100g/m2であるガラス化凍結保存用治具。【選択図】図2
