Oral-esophageal-gastric device with esophageal cuff to reduce gastric reflux and/or emesis
A nasogastric/orogastric (Ng/Og) airway protection device includes an elongate device body having a distal end for insertion into the stomach through the esophagus and a proximal end. A main lumen extends the length of the device and is configured for at least one of gastric decompression, enteral feeding and enteral medication administration. A sump port is at the distal end. A sump lumen is formed the length of the device body and configured for venting gas and preventing adherence of the device against the gastric wall. An inflatable esophageal cuff is carried by the device body mid-esophagus and an inflation lumen is formed within the device body and connects the inflatable esophageal cuff through which the esophageal cuff is inflated and deflated. Upon inflation of the esophageal cuff, emesis and/or reflux is blocked from passing out of the stomach past the esophageal cuff positioned mid-esophagus to protect a patient's airway.
1. An esophageal airway protection system, comprising:
a nasogastric/orogastric (Ng/Og) device comprising:
an elongate device body having a distal end for insertion into the stomach through the esophagus and a proximal end, and having a main lumen extending the length of the device;
an inflatable esophageal cuff carried by the device body mid-esophagus and an inflation lumen formed within the device body and connecting the inflatable esophageal cuff through which the esophageal cuff is inflated and deflated, wherein upon inflation of said esophageal cuff, emesis and/or reflux is blocked from passing out of the stomach past the esophageal cuff positioned mid-esophagus to protect a patient's airway;
a nebulizer lumen extending along the device body and comprising a port through which medication is delivered for administrating an involuntary reflex cough test, wherein said esophageal cuff protects the airway during the involuntary reflex cough test; and
a suction lumen formed within the device body and suction ports communicating with the suction lumen and configured to permit suction from the esophagus above the lower esophageal sphincter (LES);
at least one electromyogram (EMG) pad configured to be attached to the lumbar region of a patient's back and obtain an EMG from involuntary cough activated paraspinal muscles; and
a processing device configured to receive the EMG and process same to determine a physiological abnormality.
2. The esophageal airway protection system according to claim 1 , and further comprising a nebulizer venturi connecting the nebulizer lumen and configured to deliver nebulized medication around the device body.
3. The esophageal airway protection system according to claim 1 , and further comprising at least one pressure sensor located on the device body and configured to measure intra-abdominal pressure (IAP), wherein said processing device receives the IAP and correlates the IAP and EMG and involuntary reflex cough epoch.
4. The esophageal airway protection system according to claim 3 , wherein said at least one pressure sensor comprises a pressure transducer and a transducer lead connecting the pressure transducer and extending to the proximal end.
5. The esophageal airway protection system according to claim 1 , and further comprising at least one pH sensor carried by the device body, and said processing device receives pH measurements and processes same with EMG and IAP.
6. The esophageal airway protection system according to claim 1 , and further comprising a sump port at the distal end and sump lumen formed the length of the device body and configured for venting gas and preventing adherence of the device against the gastric wall.