Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1997-11-19
2000-01-11
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604122, 604126, A61M 500
Patent
active
060130601
ABSTRACT:
An I.V. bag is connected to a drip chamber, then to a conventional tube clamp and a regulating tube containing a wick or other material that breaks surface tension of the liquid in the tube, which flows into a bubble separator that forces any remaining entrained air through one or more hydrophobic gas permeable membranes, and then into the patient. A check valve near the patient prevents back flow. A vent placed adjacent to the tube clamp isolates any pressure drop above the vent, allowing a pressure head to develop in the regulating tube, which insures a constant flow of I.V. liquid into the patient regardless of downstream or upstream hydraulic conditions.
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Iles Kenneth W.
Yasko John D.
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