Abstract: An construction method of an embryonic chromosome signal library is provided. The construction method comprises obtaining an embryo and performing whole-genome amplification and next-generation sequencing to obtain a first chromosome signal; mapping the first chromosome signal to a chromosome reference signal to obtain a second chromosome signal; dividing the second chromosome signal within a predetermined interval range to obtain a third chromosome signal; and performing a regression correction on the sequencing read count (RC) of the third chromosome signal to obtain an embryonic chromosome signal library. Furthermore, a detection method and system of embryonic chromosomes are also provided. Thereby, the information comparison of the embryo chromosome signal library is used to determine whether the pre-implantation embryo is abnormal or not to achieve pre-implantation chromosome screening of pre-implantation embryos.

Abstract: A holding device includes a frame module and an accommodation unit. The frame module includes a plate body and two lateral plates oppositely disposed on the first plate body. A placement area is collectively defined by the plate body and the lateral plates. Two protrusions are respectively provided on the lateral plates. The accommodation unit includes a tray and two elastic plates. The tray is slidably located within the placement area, and an accommodation space is defined between two opposite sides of the tray. Each elastic plate is elastically connected to one of opposite sides of the tray. When the tray is moved after a load is placed within the accommodation space, the protrusions respectively push the elastic plates towards the accommodation space so that the load is toollessly fastened between the elastic plates.

Abstract: A holding device includes a frame module and an accommodation unit. The frame module includes a plate body and two lateral plates oppositely disposed on the first plate body. A placement area is collectively defined by the plate body and the lateral plates. Two protrusions are respectively provided on the lateral plates. The accommodation unit includes a tray and two elastic plates. The tray is slidably located within the placement area, and an accommodation space is defined between two opposite sides of the tray. Each elastic plate is elastically connected to one of opposite sides of the tray. When the tray is moved after a load is placed within the accommodation space, the protrusions respectively push the elastic plates towards the accommodation space so that the load is toollessly fastened between the elastic plates.