Extraction of liquids from pierceable liquid storage containers

Embodiments described herein relate to a liquid extraction device for extracting liquid from a pierceable liquid storage container, the liquid extraction device comprising: a liquid storage container interface configured to provide a fluid connection with a volume of liquid within the liquid storage container, the liquid storage container interface includes a liquid extraction outlet configured to allow extraction of liquid from the liquid storage container; and a liquid extraction mechanism actuatable from a first configuration to a second configuration; wherein the liquid extraction mechanism is configured to provide a pressure difference between a volume of gas in the liquid storage container and the liquid extraction outlet when the liquid extraction mechanism is actuated from the first configuration to the second configuration. 本文描述的实施例涉及一种液体提取装置，用于从可刺穿的液体储存容器提取液体，该液体提取装置包括：液体储存容器接口，其被配置成提供与液体储存容器内的一定体积的液体的流体连接，液体储存容器接口包括被配置成允许从液体储存容器提取液体的液体提取出口；和液体提取机构，其可从第一配置致动到第二配置；其中液体提取机构被配置成当液体提取机构从第一配置致动到第二配置时，提供液