Medical device for introduction of a fluid into the blood circulation system of a patient and method for controlling leakage currents in a medical device provided or combined with a warming unit
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United States of America
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Apr 16, 2024
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N/A
app pub date -
Jun 25, 2019
filing date -
Jun 25, 2019
priority date (Note) -
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Abstract
A warming unit (21) coupled or configured to be coupled to a heated portion (19) of a fluid circuit (6, 7, 10, 11, 13, 14, 15; 107) of a medical device (1, 100). The warming unit (21) comprises a leakage current reduction circuit (35) configured to perform the following procedure: connecting a heat transfer element (22) of the warming unit (21) to a ground connection (33) through a resistance element (34), which keeps a normal condition patient leakage current below a first limit value, and disconnecting the heat transfer element (22) from the ground connection (33) if a current indicating that a patient is connected to a mains voltage is sensed through the resistance element (34), in order to keep a fault condition patient leakage current below a second limit value.
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