A breastshield unit for use with a breastpump for expressing human breastmilk has a breastshield (2) for receiving a mother’s breast (B) and a media separation device (7, 9) for transferring a vacuum into the interior of the breastshield (2). The breastshield (2) has a receiving area (33) for receiving a nipple of the mother’s breast (B). The media separation device (7, 9) has a media separation membrane (9) which, for the purpose of transferring the vacuum, is movable to and fro between two positions. The media separation membrane (9) is located in the receiving area (33) at least in one of said two positions. Despite the integrated media separation, the breastshield unit according to the invention can be made extremely compact and minimizes the dead volume.一種供與用於擠出人母奶之吸奶器一起使用的乳房防護單元具有一用於收納母親乳房(B)之乳房防護件(2)及一用於將真空傳送至乳房防護件(2)內部中之媒介分離器件(7、9)。乳房防護件(2)具有一用於收納母親乳房(B)之乳頭的收納區域(33)。媒介分離器件(7、9)具有一媒介分離膜(9),出於傳送真空之目的,該媒介分離膜(9)可在兩個位置之間來回移動。媒介分離膜(9)至少在該兩個位置中之一者中係位於收納區域(33)中。儘管具有整合的媒介分離,根據本發明之乳房防護單元仍可製造得極端緊湊且最小化怠體積。2‧‧‧乳房防護件3‧‧‧乳房防護件插入物5‧‧‧集奶容器7‧‧‧媒介分離器件8‧‧‧閥9‧‧‧媒介分離膜23‧‧‧後開口25‧‧‧主體28‧‧‧奶附接部分30‧‧‧乳墊31‧‧‧緊固環領32‧‧‧短柱34‧‧‧第一插入物末端70‧‧‧外殼71‧‧‧真空連接器74‧‧‧乳房防護件插入物收納器90‧‧‧泵腔室a‧‧‧縱向
