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

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

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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: WANGEN, Michael, Jon, RUHLAND, Daniel, Edward, MILLER, Randy, A
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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Beschreibung
Zusammenfassung: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 the patient is connected to the mains voltage is sensed through the resistance element (34), in order to keep a fault condition patient leakage current below a second limit value.