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Photograph of “suction device”: a simple aspirator for withdrawing the contents of human follicles. A vacuum applied at the wide arm (E) is directed through the needle when required by simply blocking the open Y-arm (B) in the aspirator. Oocytes and follicular fluid are withdrawn through the needle (F) and its lead (D) into the collecting chamber (A). The collecting chamber can be easily removed from the neoprene bung (C) and replaced (Edwards and Steptoe, 1975).
