Medico-surgical tube including improved means for administering liquid or gas treatment
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United States of America Patent
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May 4, 1993
Grant Date -
N/A
app pub date -
May 15, 1991
filing date -
May 15, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A medical-surgical tube having a major lumen defined by an inner periphery of a wall of the tube, an injection lumen within the wall of the tube, and at least one one-way valve in the wall. The valve allows fluid to flow from the injection lumen through an outer or inner periphery of the wall of the tube and prevents return of the fluid back into the injection lumen. The tube can include a plurality of spaced-apart valves. The valve can be a piercing in the wall of the tube which is defined by opposed surfaces resiliently biased against each other and extending from the injection lumen to the outer or inner periphery of the wall of the tube.
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