Kinder is a set for taking oocyte samples intended for “in vitro” insemination by means of FIVET or ICSI technique. The medical device is used to take ultrasound-guided transvaginal samples of the female gamete within a medically assisted procreation (MAP) cycle. This surgical operation requires a needle connected to a set in order to aspirate the follicular fluid containing the oocytes in a closed and sterile system