| 摘要 |
An infusion pump (400) for expelling a fluid from a collapsible fluid reservoir (406) to a patient. The pump (400) includes a housing (401) having a chamber (446) therein for receiving the fluid reservoir (406). A first wall (404) is provided on the housing for contacting the fluid reservoir (406), and a second wall (410) is movable from a first position distanced from the first wall to form the chamber therebetween, and a second position relatively closer to the first wall. Advancing the movable wall (410) from the first position to the second position expels fluid from the collapsible reservoir (406) at a substantially constant rate by applying increasing force on the fluid reservoir (406) through the dispensation cycle. The first and second walls (406, 410) are provided with non-planar complementary surface (408, 413, 415, 417) for contacting the collapsible reservoir (406)
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