1. General Approach: 50 Research subjects will be selected from patients scheduled to undergo transvaginal oocyte (egg) retrieval under sedation or MAC. Sedation for these procedures typically consists of intravenous administration of a combination of midazolam, fentanyl, propofol, and/or ketamine titrated until the patient is calm, while supplemental oxygen is provided by mask or nasal cannula. A continuous infusion of propofol is then begun to keep the patient sedated enough that they will lie still and breathe regularly, but still respond to commands or noxious stimuli (such as a sternal rub). As per standard anesthetic care, each patient will have their oxygen saturation, end-tidal carbon dioxide waveform and heart rate/rhythm measured continuously while the anesthesia care provider monitors the patient for signs of inadequate respiration and airway obstruction. These signs include a loss of the end-tidal carbon dioxide waveform, snoring, paradoxical ventilation, cessation of ventilatory efforts, or a reduction in the oxygen saturation. Typically, whenever these signs are present, the anesthesia provider provides a jaw thrust to open the patient's airway and restore adequate ventilation. Once accomplished, the anesthesia care provider typically lowers the dose of anesthetic and releases jaw thrust. If signs of airway obstruction recur, jaw thrust is applied again until the level of sedation has reached a level low enough that the patient can breathe without airway support. However, this may lead to inadequate sedation, patient movement and difficulty for the surgeon to perform the procedure. The depth of sedation required for the egg retrieval procedure frequently results in needing to perform a jaw thrust or placing an airway device to maintain airway patency. Applying the JED after a jaw thrust may alleviate the airway obstruction while allowing adequate sedation to be maintained without a compromise in the anesthetic depth.