Medical salt mist measuring and control instrument and salt mist concentration quantitative control method

Abstract

The invention discloses a medical salt mist measuring and control instrument and a salt mist concentration quantitative control method. A spiral feeding device comprises a tubular spiral conveying device installed on an atomization cup, a feeding bin, a stepping motor and a gear system. A measuring and control system comprises a single-chip microcomputer, an air pressure sensor, an air flow sensor, a controllable air flow valve, a stepping motor driver, an infrared receiver, an interface circuit, an infrared wireless keyboard, an LCD and the like. The spiral conveying device is driven and controlled by the stepping motor to convey salt powder from the feeding bin to the atomization cup through a circular tube at the approximately-constant speed, a jet-type atomization mode is adopted, salt mist with different flows and different concentrations is generated through feedback adjustment on air flow on the basis of airflow air pressure information detection, the powder can be conveyed in a quantitative mode at a constant speed, the powder conveying quantity can be adjusted at any time according to requirements, compressed air flow is controllable and adjustable, operation and use are user-friendly, and the medical salt mist measuring and control instrument and the salt mist concentration quantitative control method can be applied to detection of and control over medical salt powder quantitative conveying and stable atomization.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a medical salt spray measuring and controlling instrument and a quantitative control method for salt spray concentration, which are mainly used for the quantitative delivery of medical salt powder and the detection and control of stable atomization. Background technique [0002] Medical nebulizer is a kind of equipment used to treat various upper respiratory diseases and belongs to medical equipment. Nebulization inhalation therapy is an important and effective treatment method in the treatment of respiratory diseases. The medical nebulizer is used to atomize the liquid medicine or powder into tiny particles, and the medicine enters the respiratory tract and lungs for deposition through inhalation, so as to achieve The purpose of painless, rapid and effective treatment. There are two main types of atomizers: [0003] (1) Ultrasonic atomizer [0004] The ultrasonic ...

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Problems solved by technology

[0009] In order to overcome the problems of the existing medical nebulizers, such as extensive drug delivery methods and lack of atomization process control, the present invention provides a medical salt spray measurement and control instrument and a quantitative control method for salt spray concentration, so as to realize quantitative and uniform delivery of drug powder, and the amount of drug delivery can be adjusted. It can be adjusted on demand at any time, and the flow rate of compressed gas can be controlled and adjusted to improve the humanization of operation.

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