Single-cavity bronchial catheter

Abstract

The invention discloses a single-lumen bronchial catheter, comprising: an elongated tubular body defining a ventilation lumen therein and having a distal end and a proximal end; a first inflatable cuff disposed about the elongated tubular body at a proximal side of the distal end; a second inflatable cuff located on the near side of the first inflatable cuff and arranged around the long and thin tubular body, and the second inflatable cuff is spaced from the first inflatable cuff; a lateral opening formed in the tube wall of the elongated tubular body and is positioned between the first inflatable cuff and the second inflatable cuff; and an inflatable balloon located on the far side of the opening in the inner side of the ventilation lumen and capable of blocking the ventilation lumen in an inflated state. Compared with a double-cavity bronchial catheter, the single-lumen bronchial catheter can be suitable for right lung and left lung bronchial intubation at the same time, due to the fact that no two cavities exist, the outer diameter of the whole trachea can be reduced, the trachea can be easily inserted into the airway of a patient, and damage to the airway of the patient can be reduced.

Description

technical field [0001] The invention relates to a medical device, in particular to a single-lumen bronchial catheter. Background technique [0002] Lung isolation is required during anesthesia for thoracic surgery to protect the healthy lung from contamination by secretions or blood drained from the affected lung. In the prior art, a double-lumen bronchial catheter is used for bronchial intubation to achieve the purpose of lung isolation and one-lung ventilation. Double-lumen bronchial catheters are divided into left and right double-lumen bronchial catheters, which are characterized in that the ventilation of the left and right common bronchus can be separated, and both sides of the lumen can be used, and only the uninjured side can be used for anesthesia and anesthesia. ventilation. But the existing double-lumen bronchial catheter still has many shortcomings: 1. The double-lumen bronchial catheter is divided into left and right chambers, and the need for ventilation diam...

AI Technical Summary

Problems solved by technology

But the existing double-lumen bronchial catheter still has many shortcomings: 1. The double-lumen bronchial catheter is divided into left and right chambers, and the need for ventilation diameter makes the tube body thick and hard, and the airway is easily damaged during tracheal intubation; 2. Double-lumen bronchial catheter The diameter of the ventilation lumen of the bronchial catheter is much smaller than that of the single-lumen bronchial catheter, which will lead to increased airway resistance and airway pressure; 3. The outer diameter of the double-lumen bronchial catheter is relatively thick, and the model is limited, which is only suitable for adults; 4. Double-lumen bronchial catheters are divided into left-side tubes and right-side tubes, so the type needs to be selected according to actual surgical needs; 5. Double-lumen bronchial tubes are only used for bronchial ventilation and cannot be left in the patient’s body for a long time. For extubated patients, replacement of endotracheal tube undoubtedly increases life risk

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