Tracheal tube
AssigneeDaiken Medical Co., Ltd.
InventorMasayuki Yamada
Life of this patent
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Abstract
A tracheal tube can be easily positioned and has no risk of unexpectedly blocking a bronchus. This tracheal tube is inserted through the trachea and a bronchus of a subject, and includes: a tube body which has a through hole formed on the outer peripheral surface; and bronchus cuffs which are formed on the outer peripheral surface of the tube body and which press the inner peripheral surface of the bronchus. The bronchus cuffs are formed spaced apart in the axial direction of the tube body and form a plurality of vent spaces which communicate with each other. The through hole communicates with the vent spaces.
Claims5
A tracheal tube configured to be inserted through the trachea and bronchi of a subject, comprising:
- a tube body having a through hole on an outer circumferential surface thereof, a single bronchial cuff provided on the outer circumferential surface of the tube body and configured to be inserted into the main bronchus of the subject and press an inner circumferential surface of the main bronchus;
- wherein the bronchial cuff is a single elongated shape and is provided in a helical shape at a constant interval in the axial direction of the tube body and forms a plurality of ventilation spaces;
- wherein the ventilation spaces are in internal fluid communication with each other and with an outflow opening end and an inflow opening end of the tube body via the through hole;
- wherein the through hole communicates with the ventilation space;
- wherein the width of the outer diameter of the bronchial cuff in the inflated state is smaller than the inner diameter of a lobular bronchus;
- and
- wherein in the inflated state of the bronchial cuff, an axial interval of the ventilation spaces is larger than an inner diameter of the lobular bronchus such that air permeability is improved between the lobular bronchus and outside air.
Dependencies are inferred from the claim text.