One-lung ventilation integrated device of single-cavity trachea catheter and bronchus blocking device

Abstract

The invention relates to a one-lung ventilation integrated device of a single-cavity trachea catheter and a bronchus blocking device, belonging to medical apparatuses. The one-lung ventilation integrated device comprises a Y-shaped tee joint connected with the single-cavity trachea catheter, wherein a catheter bag is arranged at the front end of the single-cavity trachea catheter, an unaffected-side bronchus opening and an affected-side bronchus opening are arranged on a left side and a right side in the front of the catheter bag, a tip end of the catheter bag is provided with a V-shaped bulge clamp, a bronchus blocking system and the single-cavity trachea catheter are integrated, the front end of a blocking pipe penetrates out from an upper edge of the affected-side bronchus opening and is out of shape in the wall of a catheter body upwards, a blocking bag is arranged at the front end of the blocking pipe, the tail end of the blocking pipe penetrates out from an affected-side root of the catheter body and is connected with a bidirectional blocking pipe switch, and an elastic guide wire special for dredging the blocking pipe is arranged at the tail end of the blocking pipe. The one-lung ventilation integrated device of the single-cavity trachea catheter and the bronchus blocking device, disclosed by the invention, has a simple structure and reasonable design and integrates various advantages of a traditional one-lung ventilation device so as to provide clinic with a novel one-lung ventilation device having the advantages of convenience for operation, exactness in location and flexibility for conversion of one-lung ventilation and double-lung ventilation, and makes an affected lung better keep a static collapse state.

Description

technical field [0001] The invention relates to a single-lumen tracheal catheter-bronchial blocker one-lung ventilation integrated device, which belongs to the technical field of medical devices, and in particular relates to a single-lumen tracheal tube-bronchial blocker single-lung ventilation technology for thoracic surgery. Ventilation unit. Background technique [0002] One-lung ventilation technology is an indispensable technique in thoracic surgery anesthesia. Its purpose is to ensure that the healthy lung is not polluted by blood, sputum, secretions, bacteria, etc. in the affected lung, to ensure good ventilation of the healthy lung and to avoid cross-infection , the affected lung is relatively static, so as to avoid affecting the surgical operation and related treatment, etc. There are many single-lung ventilation devices that can be used, but they all have different degrees of technical defects. Currently, the commonly used devices for single-lung ventilation are: ...

AI Technical Summary

Problems solved by technology

[0003] The double-lumen bronchial catheter is a commonly used one-lung ventilation device at present, but there are many technical defects in this device, such as ① the catheter tube wall is thicker, the outer diameter is thicker, and the inner diameter is thinner, which often leads to difficulty in intubation and even leads to Respiratory tract injury, etc.; ② There are few clinically available models and specifications, and children cannot use it; ③ The double-lumen bronchial catheter is a double-lumen design, and the lumen is divided into two, resulting in narrowing of a single lumen, resulting in insufficient ventilation and increased airway resistance. It is difficult to insert the sputum suction tube and bronchofiberscope; ④The operation is complicated and the positioning is difficult. Generally, the bronchofiberscope is needed to assist in positioning. Those who need respiratory support need to replace the single-lumen endotracheal tube, which is not only cumbersome to operate, but also increases the chance of respiratory damage and patient costs, and the clinical application is limited

Later, many improvements were made to the double-lumen bronchial catheter, such as "biased double-lumen bronchial catheter (Chinese patent, patent number: ZL 201120022192.8)", "asymmetrical double-lumen bronchial catheter (Chinese patent, patent number: ZL 200720195089.7)" , "Membrane-septal double-lumen bronchial catheter (Chinese patent, patent number: ZL 201020219408.5)", etc., although they all increase the inner diameter of the uninjured side bronchial catheter in the total trachea to varying degrees, they are still much smaller than the single-lumen catheter Many, even though the lumen of the uninjured side bronchial catheter increases in the total trachea segment, the inner diameter of the bronchial segment does not increase. At the same time, the bronchial lumen of the affected side is further reduced, resulting in difficulty in suctioning

[0004] The bronchial occluder is a new device for one-lung ventilation introduced in recent years. A "disposable bronchial occluder (Chinese patent, patent number: ZL 201020561057.6)" announced by Ma Boping solves the problem of tracheal tube lumen narrowing, but It is expensive, brings economic burden to patients, complicated operation, and difficult positioning. Generally, it needs to be guided and positioned by fiberoptic bronchoscope, and its clinical popularization and use are limited. In a single-lumen endotracheal tube, the bronchial blockage tube is prone to prolapse, displacement, and even obstructs the airway. In addition, it is difficult to insert the suction tube, which brings inconvenience to sputum suction

[0005] Although the single-lumen bronchial catheter solves the defect of tracheal tube stenosis, it also has shortcomings. Jiang Wei announced a "single-lumen three-bag bronchial catheter (Chinese patent, patent number: ZL 201020540738.4)". During one-lung ventilation, the two capsules are inflated, the affected lung cannot communicate with the outside world, and the lung inflation cannot be solved, which affects the operation. The secretions and blood in the affected lung cannot be discharged. Once the double capsules are deflated, the affected lung The secretions and blood in the bronchi are bound to flow into the common trachea and enter the healthy lungs. The consequences can be imagined. The bronchial segment is relatively thick. Even if the double sacs are deflated, the ventilation of the affected lung will be greatly affected.

Images