Airway high-frequency ventilation device

Abstract

The invention relates to an airway high-frequency ventilation device comprising an air supply needle cylinder and a needle. The air supply needle cylinder includes a cylinder body and a connecting part which are connected with each other. An oxygen transfer mouth externally connected with an oxygen supply extends outward from the outer wall of the connecting part. A piston sized to match the inner diameter of the cylinder body is arranged inside the cylinder body. A side, away from the connecting part, of the piston is connected with a push handle which extends out of the cylinder body. The needle includes a needle cap and a needle body. When the existing cricothyroid membrane puncture needle is used to perform emergency treatment on a difficult airway through cricothyroid membrane puncture and high-frequency jet ventilation, a variety of complications can be easily caused. The existing cricothyroid membrane puncture needle is not applicable to children with small airway. Puncture may greatly damage cricothyroid membrane tissues. The existing cricothyroid membrane puncture needle is inconvenient to carry and needs to be powered by a power supply. By adopting the airway high-frequency ventilation device of the invention, the defects of the cricothyroid membrane puncture needle are overcome. The airway high-frequency ventilation device has the advantages of stable air supply, a large number of target users, small surgical injury, fewer complications, fast use, and applicability to emergency treatment on a respiratory tract through oxygen transfer in the field or other environments.

Description

technical field [0001] The invention relates to an airway high-frequency ventilation device, which is used for oxygen delivery first aid for patients with difficult airways. Background technique [0002] Difficult airway refers to the difficulties encountered by mask ventilation or airway intubation in patients with thyroid hemorrhage, laryngeal tumor, or coma after general anesthesia. Difficult airway (grade III or IV) occurs in 1.4% of all patients, 0.9% in the operating room, and 6% to 11% in the emergency room. The incidence of cricothyroidotomy or tracheotomy required for intubation and mask oxygenation ranges from 1% to 2.8% in the emergency department. In the case of an emergency difficult airway situation that cannot be ventilated or intubated, the current more traditional emergency treatment method is to cut the airway and insert the tracheal tube from the incision. Due to the large trauma to the trachea and permanent damage to the tracheal cartilage Sexual trauma...

AI Technical Summary

Problems solved by technology

[0010] However, the existing method of using high-frequency jet ventilator for first aid for patients with difficult airway is relatively simple, just use the thin ventilation tube to connect with the high-frequency jet ventilator and insert it from the mouth for first aid.

However, this method is still helpless when encountering patients with severe upper glottis obstruction. If the existing cricothyroid puncture needle is used to puncture and connect to a high-frequency ventilator, because the puncture needle has a large caliber and is mostly Curved tube, the high-frequency jet gas is likely to generate turbulent flow inside the needle tube, resulting in insufficient oxygen supply, making it difficult to perform first aid work

[0011] In summary, it can be seen that there is no ventilation device suitable for first aid for patients with difficult airways in the prior art, and a ventilator that can meet the gas delivery characteristics of high-frequency jet ventilators and can be equipped with high-frequency jet ventilators is invented. Ventilator Breathing devices for first aid for patients with difficult airways have become a top priority

Images