Portable micro-grid atomizer with low liquid medicine residue

Abstract

The invention belongs to the technical field of medical treatment, and particularly relates to a low-liquid-medicine-residue portable micro-grid atomizer which comprises a driving main machine, an atomizing device, a mist storage tank and a mouthpiece, the atomizing device is integrally integrated with an electric connector, a liquid storage chamber and a mist outlet formed in the transverse direction, and a conductive probe is arranged in the electric connector; the side portion of the mist storage tank is provided with a mist inlet arranged in the transverse direction, the lower end of the mist storage tank is provided with an air suction inlet, a first one-way valve is installed at the air suction inlet, and the upper end of the mist storage tank is provided with an air suction mist supply opening. The mouthpiece is provided with an inspiration mist inlet, an expiration exhaust port and a breathing nozzle for a patient to bite, and a second one-way valve is installed at the expiration exhaust port. The atomization device has the advantages of being small in size, few in liquid medicine residue, convenient to use and the like, sedimentation of atomized aerogel in the mist storage tank can be reduced, and the problem that the atomized aerogel is brought out by expiration during atomization or expiration is inconvenient due to the fact that the atomization device needs to be moved away during atomization is effectively solved.

Description

Portable micro-mesh nebulizer with low liquid residue technical field The invention belongs to medical technology field, be specifically related to a kind of portable micro-mesh atomizer with low medicinal liquid residue. Background technique Atomization inhalation therapy is to disperse the medicinal liquid into micron-level fine mist-like liquid particles through an atomizer, and breathe through the patient. can reach the lungs of patients, so as to achieve painless and rapid treatment of diseases such as cough, asthma, sore throat, pharyngitis and bronchopneumonia disease purpose. The main equipment types are jet atomizers, ultrasonic atomizers, and micro-mesh atomizers. Defect and deficiency of prior art: 1, in the existing atomizer, jet atomization needs to provide driving air source by a branch in the ventilator gas-phase airflow split flow, The driving pressure provided by most ventilators to the nebulizer is <15psi, which is less than compressed air or ...

AI Technical Summary

Problems solved by technology

[0004] 1. The jet atomization in the existing nebulizer needs to provide the driving air source from a branch of the ventilator’s gas-phase airflow split. The driving pressure provided by most ventilators to the nebulizer is <15psi, which is higher than that of compressed air or oxygen (50psi) commonly used in hospitals. ) is small, the reduction of the driving pressure reduces the efficiency of the jet nebulizer, and the diameter of the generated aerosol increases, thereby reducing the total amount of it reaching the lower respiratory tract

However, some ventilators, such as PB840, Simens Servo, etc., are not equipped with atomization function and can only be driven by an additional compressed air source. The external airflow will increase the tidal volume and affect the air supply of the ventilator; the increase of the basic airflow may easily cause the patient to trigger Bad;] If the external air source is compressed oxygen, the actual inhaled oxygen concentration will be higher than the oxygen concentration set by the ventilator, which will cause respiratory depression for patients with COPD

[0005] 2. Due to the atomization principle of the existing jet atomizer and ultrasonic atomizer, the jet atomization of the lower liquid level cannot make the air flow impact the liquid atomization, and the vibrating parts of the ultrasonic atomization fog cannot vibrate to produce atomized liquid. Drops will inevitably cause about 1mL-2mL liquid residue, which not only causes liquid waste but also makes cleaning difficult

[0006] 3. Existing jet nebulizers or ultrasonic nebulizers are often equipped with masks or ventilators when used. The nebulizer is in a continuous working state. If there is no storage device, the aerosol produced will be discharged with the exhalation, resulting in a large amount of exhalation phase. Aerosol waste and dosing inaccuracies

[0007] 4. The liquid surface of the existing jet nebulizer or ultrasonic nebulizer is located below the mist outlet when in use, there is a risk of being polluted by condensed water, and if it is not cleaned in time, it will cause respiratory tract infection

[0008] 5. Most of the existing jet nebulizers or ultrasonic nebulizers are bulky and require 220v power supply, which is inconvenient to carry and use

[0009] 6. The nebulization volume of some small-capacity nebulizers on the market is directly related to the size of the liquid storage bottle, which is generally less than 10mL and cannot be connected with an external automatic injector. In the face of long-term nebulization operations, it is necessary to add medicine midway and the dosage cannot be well controlled. , increasing the risk of infection and operating steps

[0010] 7. According to the general consensus, atomized particles with a diameter of 1um-5um can effectively enter the lower lungs. Traditional atomization devices cannot well control the atomized particles in this range. The diameter of ultrasonic atomized atomized particles is concentrated in the 5um-10um, usually particles of this size will settle in the main trachea and bronchi, and it does not play a good role in drug delivery for diseases that require drug delivery to the lower lungs or bronchi, such as asthma and chronic obstructive pulmonary disease; compared with spray atomized particles Dispersed, 60% of the atomized particles of the partial jet atomization device are less than 1um, these particles cannot settle in the lungs, and will be discharged together with the exhalation phase

[0011] 8. The misting direction of the micro-mesh nebulizers on the market is often downward. Such a misting direction will cause some droplets to settle under the air storage tank due to gravity and the movement direction of the atomized droplets.

[0012] 9. The micro-mesh nebulizers on the market often have relatively strict inclination angle restrictions when used, such as the Jiuan micro-mesh nebulizer, which will cause a lot of inconvenience when facing patients who are inconvenient to stand or sit.

[0013] 10. The micro-mesh nebulizers on the market are often used with disposable nebulizing masks, which are expensive to use for a long time and consume more raw materials

[0014] 11. The micro-mesh nebulizers on the market are often unable to directly carry out oxygen ventilation during nebulization. When in use, the patient needs to remove the nebulizer voluntarily after inhalation before exhaling, or directly set the exhalation channel to make the nebulized gas The gel is exhaled together, which is inconvenient to use

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