MEDICAL CONTACT SHOCK FREEZER
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United States of America Patent
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Issued Date -
Oct 3, 2024
app pub date -
Jul 15, 2022
filing date -
Jul 16, 2021
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Abstract
A medical contact shock freezer (10) adapted for fast freezing a plurality of individual bags containing a medical liquid, notably blood plasma, the medical contact shock freezer comprising:—a first pair of freezing plates (11), at least one of the freezing plates of the first pair of freezing plates being moveable between i) a loading position of the freezing plates in which sufficient separation is provided between the freezing plates to load or unload the individual bags between the freezing plates and ii) a freezing position in which the individual bags arranged between the freezing plates are clamped between the freezing plates; and—a first refrigeration circuit (15) configured when in a refrigeration mode to remove heat from the first pair of freezing plates to freeze the individual bags clamped between the first pair of freezing plates; in which—the first refrigeration circuit comprises a cascade refrigeration circuit comprising a first stage refrigeration circuit (S1), a second stage refrigeration circuit (S2) and an inter-stage heat exchanger (17).
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