Neonatal colorimetric carbon dioxide detector

A neonatal calorimetric carbon dioxide detector with carbon dioxide detection, the neonatal calorimetric carbon dioxide detector formed to insert into an airway circuit, the neonatal calorimetric carbon dioxide detector comprising:

• an enclosure having a patient orifice in communication with a patient's airway and a respiration equipment orifice, the respiration equipment orifice in fluid communication with the patient orifice, the respiration equipment orifice connected to the patient orifice by two pegs on a bottom surface of the respiration equipment orifice mating with two holes on a top surface of the patient orifice;
• and
• a calorimetric membrane held within the enclosure and visible through the enclosure, the calorimetric membrane in fluid communication with the patient orifice such that the calorimetric membrane is exposed to exhalation gas from the patient orifice before the exhalation gas exits through the respiration equipment orifice;
• whereas a total internal volume of the enclosure is 3.8 mL before the neonatal calorimetric carbon dioxide detector is inserted into the airway circuit and the neonatal calorimetric carbon dioxide detector adds less than or equal to 1 mL to the airway circuit after the neonatal calorimetric carbon dioxide detector is inserted into the airway circuit.

A neonatal calorimetric carbon dioxide detector with carbon dioxide detection, the neonatal calorimetric carbon dioxide detector formed to insert into an airway circuit of a low birth weight neonatal patient, the neonatal calorimetric carbon dioxide detector comprising:

• a patient orifice in fluid communication with a patient's airway;
• a respiration equipment orifice in fluid communication with the patient orifice, a bottom circumferential edge of the respiration equipment orifice interfaced to and overlapping a top circumferential edge of the patient orifice;
• and
• a calorimetric membrane held between the respiration equipment orifice and the patient orifice, the calorimetric membrane is visible through the respiration equipment orifice, the calorimetric membrane in fluid communication with the patient orifice such that the calorimetric membrane is exposed to exhalation gas from the patient orifice before the exhalation gas exits through the respiration equipment orifice;
• whereas a total internal volume of the respiration equipment orifice and the patient orifice is less than or equal to 3.8 mL before the neonatal calorimetric carbon dioxide detector is inserted into the airway circuit and the neonatal calorimetric carbon dioxide detector adds less than or equal to 1 mL after the neonatal calorimetric carbon dioxide detector is inserted into the airway circuit.