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MULTIPURPOSE ESOPHAGEAL INSTRUMENT

  • US 3,734,094 A
  • Filed: 06/21/1971
  • Issued: 05/22/1973
  • Est. Priority Date: 06/21/1971
  • Status: Expired due to Term
First Claim
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1. A multipurpose esophageal instrument for integrated monitoring of a patient'"'"''"'"'s physical condition, comprising a suction tube for insertion in a patient'"'"''"'"'s esophagus and provided with an inlet in one end for stomach fluids and an outlet in its opposite end for connection to a suction machine, a separate acoustic tube encircling a portion of the suction tube with space between them, the acoustic tube having an inner end sealed to the suction tube in a location adjacent to but spaced from the inlet end thereof, the outer end of the acoustic tube being provided with an opening through which the suction tube emerges, the outer end of the acoustic tube also having an outlet for connection to a sound-monitoring device, the inner end portion of the acoustic tube having lateral openings therein, a diaphragm sleeve encircling said inner portion of the acoustic tube, the opposite ends of the sleeve being sealed to the acoustic tube with said lateral openings between the sleeve ends, a plurality of spaced electrode bands encircling the acoustic tube adjacent said diaphragm sleeve, and a wire connected to each band and extending outwardly along the acoustic tube and away from its outer end portion for connection to a heart-monitoring machine.

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