摘要：

l. A nasopha-ryngeal tube including in combination an elongated narrow tubular member having a plurality of noncommunicating passages throughout a major portion of its length and including an apertured member forming one end of the tube, adapted to extend into the stomach and communicating with an outlet at the other and outer end of the tube, a thin walled expandable balloon member attached to said tube and communicating with one of said passages to extend to a valved member whereby the balloon may be inflated and deflated within the stomach, a second thin-walled expandable balloon member adjacent the first balloon member attached to said tube and communicating with another of said passageways to extend to Ia valved member, a fourth one of the tubular passages being apertured adjacent the second balloon member and a third balloon member spaced from the second and communicating with a tubular member having an external valved end through which it may be inated or deiated.

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