Anesthesia drug spray device for anesthesiology

Abstract

The invention relates to an anesthetic drug spraying device for anesthesiology, comprising a peristaltic pump and a spraying mechanism connected to the peristaltic pump. The spraying mechanism includes a liquid storage tank, an atomization structure and a horn which are connected in sequence. The horn is connected to the bottom end of the liquid storage tank through a flange, and the flange is away from the side of the horn. The atomization structure is sealed and connected with the bottom end face of the liquid storage tank, and the atomization structure includes an atomization sheet and piezoelectric ceramics; in the spray device provided by the present invention, the excitation circuit generated by the resonator excites the resonance frequency generated by the atomization structure The square wave acts on the spraying mechanism. In addition to the solution stored in the liquid storage tank, the peristaltic pump can be driven by the drive circuit for real-time liquid replenishment, which drives the liquid in the liquid storage tank to continuously extrude from the horn to form fog particles.

Description

technical field [0001] The invention belongs to the technical field of anesthesia equipment, and particularly relates to an anesthetic drug spray device for anesthesiology. Background technique [0002] At present, the surface anesthesia of the airway mucosa is carried out by using a classic laryngeal sprayer to spray surface anesthetics. Since the sprayer can only be injected into the pharynx through the external mouth of the nasal cavity and through the oral cavity, the scope of surface anesthesia that can be implemented is very limited. It is located in the nasal cavity or pharynx and requires multiple operations by medical personnel. [0003] The watering cans currently used clinically for surface anesthesia of the oral cavity, throat and trachea mostly use large conical glass bottles as drug containers, and the surface anesthetic liquid is directly injected into the container. The medicine is ejected from the nozzle. The currently used watering can, because the spraye...

AI Technical Summary

Problems solved by technology

The currently used watering cans, because the sprayed surface anesthetic is in the shape of a fine water column, may easily cause uneven distribution of the surface anesthetic, seriously affect the anesthesia effect, and easily cause severe coughing, thereby affecting the safety of airway interventional therapy. It can be used only after being injected into the container, which increases the chances of drug contamination and respiratory tract infection of patients. The bottle is too large, and each use requires more than 20ml of liquid medicine before it can be used. However, the actual usage generally does not exceed 5ml, and the drug waste is serious.

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