Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-09-10
1995-05-23
Weiss, John G.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604131, 604151, 604123, A61M 100
Patent
active
054176638
ABSTRACT:
In a device for conveying liquids having an intermittently energized pump and a filter for retaining air bubbles preceding the input side of the pump, the filter contains an admission opening in the form of a long gap and the gap volume is greater than the conveying volume of the pump given a single pump action. Even an air bubble that nearly completely covers the gap cannot be conveyed therethrough as long as the gap is in contact with the liquid to be pumped at some location.
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Siemens Aktiengesellschaft
Weiss John G.
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