Endotracheal tube and intubation system including same

Details Endotracheal tube and intubation system including same Endotracheal tube and intubation system including same

A - Human Necessities

61

M

A61M 16/04 (2006.01)

Patent

CA 2631516

An endotracheal tube (20) for mechanically ventilating patients is disclosed. The endotracheal tube comprises a distal end (20a) for insertion into the patient's airway (2), past the vocal chords (3), through the subglottal region (4), and into the patient's lung (5); and a proximal end (20b) for connection to a mechanical ventilator (6). The endotracheal tube further comprises a cuff (22) at the distal end of the endotracheal tube to be located in the subglottal region of the patient below the vocal chords, an inflating lumen (23) for inflating the cuff, and a suction lumen (24) having a suction inlet port (24a) leading from the outer surface of the endotracheal tube, and to be located in the subglottal region, for evacuating secretions and/or rinsing fluid from the subglottal region during the mechanical ventilation of the patient. The distal end of the endotracheal tube is formed with an outer surface configuration (25) effective to prevent blockage of the suction inlet port by the cuff or by tracheal mucosal tissue of the patient during a negative pressure condition in the suction lumen.

La présente invention concerne un tube endotrachéal pour assurer la ventilation mécanique de patients. Ce tube comprend une extrémité distale à insérer dans les voies aériennes du patient, au-delà des cordes vocales, à travers la région subglottale et dans le poumon du patient, et une extrémité proximale à connecter à un ventilateur mécanique. Le tube endotrachéal comprend en outre un ballonnet à l'extrémité distale du tube endotrachéal à situer dans la région subglottale du patient au-dessous des cordes vocales, une lumière d'inflation permettant de gonfler le ballonnet et une lumière de succion comportant un port d'entrée de succion menant de la surface externe du tube endotrachéal et à placer dans la région subglottale afin d'évacuer les sécrétions et/ou le liquide de rinçage de la région subglottale lors de la ventilation mécanique du patient. L'extrémité distale du tube endotrachéal est formée avec une configuration de surface externe permettant efficacement d'empêcher le blocage du port d'entrée de succion par le ballonnet ou par les tissus muqueux trachéaux du patient lors d'une condition de pression négative dans la lumière de succion.

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