Description Of Endotracheal Tube
Description of endotracheal tube
Field of the endotracheal tube
The present invention relates to the field of endotracheal tube. More particularly, this invention deals with an apparatus and process for placing an endotracheal tube so that one or both lungs may be ventilated during an operation.
Bacground of the endotracheal tube
It is a common practice to provide human medical patients with artificial ventilation during surgery or in emergency situations. For example, accident victims will frequently require CPR or intubation by a paramedic in an emergency vehicle or by an anesthesiologist in an operating room. There are other surgical procedures which require use of an oxygen mask
to collapse one lung. For example, taking a biopsy from the lung to gather information on an infection, repairing a lobar defect due to infant emphysema, removing tumors, repairing an abscess or doing an esophageal triage.
Intubation is accomplished by insertion of an endotracheal tube through the patient's mouth or nasal passages into the airway passage. Such devices have generally comprised a relatively pliable tube with means for connecting it to a respirator or other air supply mechanism for introduction of air into the lungs. An improvement to endotracheal tubes includes an inflatable/deflatable bag-like structure or balloon "cuff" around the exterior of the tube. The balloon cuff is conventionally located in a position along the tracheostomy tube to engage the inner wall of the pharynx, larynx, or trachea depending upon the specific endotracheal tube design.
Summary of the endotracheal tube
The present invention is directed to an endotracheal tube which can be inserted through the mouth or nose and past the laryngeal mask airway of a patient and into the tracheal and mainstem bronchial passages. Extending from the tracheal portion of the tube is a bronchial portion which may be placed in either the left or right mainstem bronchus (singular) of the patient. The bronchial portion is angled with respect to the tracheal portion. The size of the angle corresponds to the angle between the trachea and the mainstream bronchus of the patient. Generally, these angles are age dependent and are known. The single lumen of the endobronchial tube of the present invention has an inner diameter sufficient to allow access through the single lumen to the patient's lungs and respiratory system with additional instrumentation, as required. The bronchial portion of the endotracheal tube has a balloon situated on the inside of the tube which can be inflated or deflated.
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endotracheal tube oxygen mask laryngeal mask airway
Endotracheal tube should be abolished, the patient physiological monitoring, in appropriate emergency equipment and trained health care providers of airway management skills
FIGS. 6 and 7 illustrate the proper handling technique and grip of my tube 10. With the endotracheal tube 10, the middle finger 20 is placed into the ring 11. The index finger 21 is placed on the uppermost boundary of the connector tip 16. Then the tube 10 is introduced into the patient's mouth and advanced towards the glottis as best seen in FIGS. 1 and 2.
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One of the most important functions of an endotracheal tube (ETT) is to prevent aspiration of fluid or particulate matter into the airway. This is achieved by using tracheostomy tube with inflatable cuffs.
Embodiments of the invention relate to endotracheal tube and methods for using endotracheal tubes. The endotracheal tubes may be adapted for use with any suitable patient. Patients may include animals or humans of any suitable size. However, embodiments of the laryngeal mask airway are especially useful when the patients are infants such as neonates.
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In one embodiment of the present single screw extruder, the tiles are made of carbide or tungsten-carbide. In another preferred embodiment of the present twin screw extruder, the step of securing further comprises brazing, soldering, or gluing.
A kneading disc for a single screw extruder, the disc having a central longitudinal axis and comprising a kneading body of given width twin screw extruder, given material and having a region of maximum operating stress
A method of extending the life of a single screw extruder by affixing tiles of wear-resistant material along the crest of the twin screw extruder flighting threads, and optionally grinding the hardened material to remove any sharp edges.
Kneading disc for a single screw extruder.In order to improve the wear-resistance of highly stressed surfaces of a kneading disc in a helical twin screw extruder, the exposed tips of the kneading disc are provided with inserts of an extremely wear-resistant, hard material.
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