Fig 1.
Schematic illustration of the in vitro embryo transfer model.
Fig 2.
The catheter load with a sequence of air and liquid volumes.
Table 1.
Experimental design based on the L27 (3×9) orthogonal array and the experimental results.
Fig 3.
Schematic illustration of the division of embryo locations in the uterine cavity.
Table 2.
Embryo location area division.
Fig 4.
Transferred matter expansion shapes in the anteverted, horizontal, and retroverted uterus of the laboratory ET model.
Fig 5.
Embryo locations under different injection speeds and catheter tip-fundus distances in the laboratory embryo transfer model.
Fig 6.
The separation of embryos from the air bubble under different injection speeds and catheter tip-fundus distances in the laboratory ET model.