Blocking condition detection device in a medical fluid injection system
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United States of America Patent
Stats
-
Jan 25, 1983
Grant Date -
N/A
app pub date -
Aug 21, 1980
filing date -
Aug 24, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A medical fluid injection system which includes a flexible conduit and a rotor for supplying a pressurized medical fluid to the human body through the flexible conduit. A blocking condition detection unit is provided for detecting an abnormal blocking condition of the flexible conduit. The blocking condition detection unit includes a supporting member for supporting the flexible conduit in a manner that the section of the flexible conduit is forced to show a rectangular configuration. A rod is slidably disposed through the supporting member so that one end of the rod makes contact with the flexible conduit. When an abnormal blocking condition occurs in the flexible conduit, the flexible conduit held by the supporting member expands to depress and shift the rod. The thus created movement of the rod is detected by a mcroswitch, whereby the rotation of the rotor is interrupted.
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Family
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