In the 2024 "Respiratory Therapy Equipment Yearbook", an astonishing data was disclosed: 91.7% of the differences in clinical nebulization treatment effects are directly related to the nebulizer sheet. This thin metal sheet, which is usually less than 3 cm in diameter, determines the drug delivery efficiency, patient comfort and even the success or failure of treatment.
1. Why has the nebulizer sheet become a key bottleneck?
1.1 From the principle to see the core position
Nebulizers are often used in the treatment of respiratory diseases. Compared with traditional oral and injection medications, the nebulizer's nebulization inhalation has the characteristics of fast drug onset and small dosage.
There are two main reasons that affect the effect of atomization treatment:
1. Atomization particle size: The diameter of atomization particles that can be effectively deposited in the airways and lungs should be 0.5-10μm, with 3-5μm being the best;
2. Atomization volume: The larger the atomization volume, the larger the dose of medicine inhaled at the same time, so that the therapeutic effect can be better exerted
Energy conversion center: converting electrical energy/ultrasound into liquid drug fragmentation energy
Precision determines fate: an aperture error of 1μm will cause a 40% deviation in particle distribution
The mainstream atomizer inhaler is a compression atomizer, which has the advantages of easy operation and use, no need for dilution, good clinical effect, low failure rate, and long service life, but it cannot completely control the droplet size, and the proportion of 1-5μm atomizer particles is small. It has the disadvantages of large ineffective residual dose, low efficiency of repeated atomization, and high noise, and it relies on high-speed gas, which can easily cause adverse reactions such as dyspnea.
The new micro-mesh atomizer is a new atomization drug delivery device that has emerged internationally in recent years, which can make up for the traditional Disadvantages of Atomizer Plate.
The core technology of the micro-mesh nebulizer is to produce drugs by squeezing the drug liquid through the fine sieve holes through the high-frequency vibration of the piezoelectric ceramic piece, which can reduce the impact of ultrasonic vibration liquid heat generation on the drug mist, and the diameter of the sieve hole determines the size of the drug mist particles.
The micro-mesh nebulizer has the following advantages:
1. Good treatment effect: uniform atomization rate, uniform atomization particle size, 1-5μm atomization particles account for more than 80%, can reach deep into the lungs, high drug lung deposition rate, and more significant treatment effect;
2. High utilization rate of drug liquid: drug residue is less than 0.1ml;
3. No change in drug properties: no change in the temperature of the drug itself;
4. Excellent user experience: no need to cooperate with central oxygen supply equipment or medical nebulizer, portable and lightweight, and quiet during use.
The core component of the micromesh nebulizer is the micromesh atomizer, because 90% of the nebulizer performance depends on the atomizer
1.2 Clinical verification data
Research from Johns Hopkins University shows:
High-quality atomizers increase the lung deposition rate from 28% to 52%
When COPD patients use inferior atomizers, the risk of acute attacks increases by 3 times
II. The core gold standard of Medical atomized plate
2.1 Particle size control: not the smaller the better
Treatment goal Optimal particle size (μm) Representative drug
Alveolar absorption 1-3 Insulin, vaccine
Bronchial deposition 3-5 Salbutamol
Upper respiratory tract treatment 5-10 Antibiotic flushing solution
2.2 The cruel truth about the life of Atomizer Plate
Some time ago, we tested a certain brand of atomizer plate after working continuously for 200 hours:
The median diameter of the particles drifted from 3.2μm to 5.8μm
The atomization rate decreased by 62%
III. The balance between cost and performance of Atomizer Plate
Piezoelectric made of composite materials Ceramic Atomizer Plate:
Cost is 35% lower than pure PEEK
Life is 2 times longer
IV. Revolutionary breakthrough: Atomizer plate
Parameters Traditional process Piezoelectric ceramic process
Thickness (mm) 0.8-1.2 0.2-0.3
Response speed (ms) 50 5
Aperture consistency ±8% ±1.5%
V. Practical guide for selecting microporous atomizer plates
5.1 Checklist for purchasing engineers of Microwell Atomizer Plate
1. Request the original data of PSD (particle distribution) test from the Atomizer Plate manufacturer
2. Request technical parameters from the Atomizer Plate manufacturer, including resonant frequency, resonant impedance, capacitance, operating voltage, atomizing medium, life test, etc.
3. Request the Atomizer Plate manufacturer for the atomizer plate dimensions and packaging, applicable instructions according to your own product requirements and application scenarios
4. Test whether the consistency of Atomizer Plate meets the standards
5.2 Atomizer Plate purchasing decision tree
Start → Understand relevant certifications? → Yes → Particle size requirements? → 1-3μm → Atomizer Plate performance test...
↓
3-5μm → Atomizer Plate performance test...
VI. Medical atomized plate redefines treatment accuracy
When the world's top hospitals begin to incorporate Atomizer Plate into the three-level quality control system of medical equipment, this component, once regarded as a "consumable part", is gaining a new strategic position. Choosing an atomizer plate is essentially choosing the patient's breathing quality.