Single-cavity single-bag single-lung and double-lung ventilation catheter

Abstract

The invention relates to a single-cavity, single-bag, single-lung and double-lung ventilation catheter. The catheter comprises a catheter body and a catheter breathing connector arranged at the tail end of the catheter body. A catheter side edge ventilation part and a catheter bag body matched with the catheter side edge ventilation part are arranged at the head of the catheter body, the catheterside edge ventilation part is communicated with a cavity in the catheter body, and the catheter side edge ventilation part is located on the inner side of the arc-shaped head end of the catheter body.The catheter bag body is located at the head of the catheter body, and the catheter bag body wraps the corresponding outer wall, except for the catheter side edge ventilation part, of the head of thecatheter body. The length direction of the catheter bag body is consistent with that of the catheter body, the length of the catheter bag body is larger than that of the catheter side edge ventilation part, the catheter side edge ventilation part is located between the two ends of the catheter bag body, and the lower edge of the catheter bag body is located between the catheter side edge ventilation part and an end hole of the catheter body. According to the invention, the stability and reliability of single-lung and double-lung ventilation can be effectively provided, and the use is convenient.

Description

technical field [0001] The invention relates to a tracheal catheter, in particular to a single-cavity single-bag single-lung ventilation catheter, which belongs to the technical field of tracheal catheters. Background technique [0002] In thoracic surgery, in order to free up enough surgical space, it is necessary to suspend breathing of the operated lung to collapse the operated lung, and at the same time, perform one-lung ventilation on the non-operated lung to meet the oxygen supply demand during the operation. After the lung operation is completed, it is necessary to temporarily ventilate the surgical side lung to test the airtightness of the surgical side lung resection margin to avoid complications such as pneumothorax caused by air leakage from the surgical side lung resection margin after the chest wall is directly closed. After the operation, double-lung ventilation is required to re-expand the lung on the surgical side that collapsed during the operation to achiev...

AI Technical Summary

Problems solved by technology

[0006] 3) The double-lumen bronchial catheter is limited by the inner diameter of the trachea of ​​the human body. Due to the limitation of the inner diameter of the glottis in children, the diameter of a single lumen is small, and it is impossible to produce thinner products that can be used by children, which limits its use in children. applications in groups

The current double-lumen bronchial catheter can only be used in children over 10 years old;

[0007] 4) The double-lumen bronchial catheter is limited by the inner diameter of the trachea of ​​the human body, resulting in a small diameter of a single lumen, which is not conducive to the operation of sputum suction

[0009] 1) The placement and positioning of the bronchial occluder is difficult and requires the assistance of video tools. That is to say, the video tool and the bronchial occluder need to be operated at the same time. The operation is relatively complicated and requires experienced anesthesiologists to implement it smoothly;

[0010] 2) When positioning the bronchial occluder, it is necessary to simultaneously place the video tool and the bronchial occluder into the cooperating single-lumen endotracheal tube. For patients over 6 years old, children under 6 years old are difficult to use;

[0011] 3) When in use, the bronchial occluder is used to block the bronchial orifice of the surgical side lung, and it is difficult to discharge the gas in the surgical side lung; it is impossible to perform sputum suction on the surgical side lung; The gas in the occluder air bag is discharged, and the lung on the operated side is inflated through the single-lumen tube, which will cause blood or secretions in the bronchi of the operated side lung to flow into the main trachea, resulting in pollution of the non-operated side lung and the main trachea;

[0012] 4) The balloon of the bronchial occluder is not easy to fix, and the lung isolation effect is unstable. It is easy to shift during the operation, resulting in poor lung isolation effect, and the high-pressure and low-volume balloon is easy to cause mucosal damage;

[0013] 5) If the tube cannot be extubated after the operation, respiratory support is needed, and the single-lumen endotracheal tube used together needs to use a subglottic suction endotracheal tube, and the cost will increase significantly;

[0014] 6) The production process of the bronchial occluder is relatively difficult and expensive, which is several times that of the double-lumen bronchial catheter, which places a heavy economic burden on the patient

This operation is a positioning operation, the depth needs to be relatively accurate, and it often takes several times to complete, which can lead to mucosal damage, bleeding, and even bronchospasm at the bronchial opening;

[0019] 4) Pulmonary hemorrhage and mucus accumulation on the surgical side above the single-lumen endotracheal tube balloon, lack of effective suction method, easy to cause atelectasis due to blood clots or mucus blocking the bronchial opening of the surgical side, or blood or mucus flowing into the non-operative side bronchus and Main trachea, leading to contamination of non-operated lung and main trachea

[0020] In short, clinically, there is a lack of a simple, effective, safe and practical one-lung ventilation management tool that can effectively exhaust and inflate the surgical side lung during surgery, and does not require extubation and intubation when respiratory support is required at the end of the surgery.

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