The Problem

Endotracheal intubation procedures  are  performed on certain medical patients. In this  procedure, a  tube  providing   an  airway   may  be  introduced  to  assist  the  breathing  of  a  patient  having undergone  certain  kinds  of  trauma. An  anesthetic  laryngoscope  is  an   essential   tool  for  the  implementation   of   cardiopulmonary    resuscitation.  In  this  process,  a  laryngoscope  blade   is inserted into the mouth (see Figure) and is used to retract   soft   tissue,  opening the  patient’s  jaw and mouth to form  a  clear,  open  path  through which a tube or instrument may be inserted.

There are a wide variety of laryngoscopes with different designs and shapes. Laryngoscopes have a spatulate, which is an axially curved shape formed to cooperate with the conventional shape of oral cavity  structure.  The  curved  spatula  portion  of  the  blade  is   used   for   retracting  soft  tissue  and opening the patient’s jaw and  mouth  to  form  a clear,  open  path  through  which a  tube  or instrument  may  be   inserted.  The  wide  variety  of   laryngoscopes  differ  mainly  in  design  and accessories.

In those cases where the patient is  unconscious,  there  is  no  patient  gag  reflex  over  which  the medical practitioner must surmount to install a tube, or to insert some other medical device. Consequently, difficulty of an intubation procedure  is  greatly  reduced,  although  not  eliminated. However, there exist instances where the patient is awake, at least partially alert,  desirably  remains in such condition for a further period, and prompt intubation must be performed  in  spite  of  such facts. In such cases, the patient’s own gag reflex can constitute a significant obstacle to intubation.

Currently, the practitioners randomly orient the spray nozzle and  try to  coat all airway  areas.  This results in significant loss of anesthetic, over-coating in some areas, and undercoating in others, and slows the effectiveness of the drug. Our  new  device  allows  the practitioner  to realize  where  the spray is being applied to and what is the coating conditions. The system has a mechanism to  easily change the orientation of the nozzle and the spray.

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