| 摘要 |
A suction catheter has a distal end portion with an opening for insertion into a patient's airway. The proximal end portion is attached to a resilient tubular member on which an external valve mechanism can operate to prevent fluid flow through the member. The valve mechanism is biased to a normally closed condition, will open the tubular member when depressed, and will return to its normally closed condition when not depressed. A downstream connector can be attached to a source of suction. The invention is more comfortable for the patient, uses fewer components and is less expensive than prior art suction catheters.
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