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Product advantages and characteristics of ventilator silicone sealing gasket
As a key seal of ventilator airway, mask and core components, the advantages and characteristics of ventilator silicone gasket are closely developed around the strict requirements of medical equipment for safety, sealing, biocompatibility and stability, as follows:
I. Advantages of core products
1. Excellent sealing and protective performance
Silicone material has excellent elasticity and compression deformation recovery ability. It can closely fit the irregular surface of the ventilator mask, airway interface or equipment housing, achieve high-grade dustproof waterproof (IP65 and above) and gas sealing, effectively prevent insufficient therapeutic pressure caused by airflow leakage, and isolate external pollutants. Invading the airway.
2. Excellent biocompatibility and safety
Using medical-grade silicone raw materials (in line with FDA, ISO 10993 and other medical standards), odourless and non-irritating, long-term contact with human skin and mucous membranes does not cause allergic, inflammation and other adverse reactions, and is resistant to disinfection (can withstand high-temperature and high-pressure steam, epoxy ethane, alcohol and other common medical disinfection methods), Avoid the risk of cross-infection.
3. Stable temperature resistance and ageing resistance
It has a wide temperature resistance range (usually -40℃~200℃), which can adapt to the temperature fluctuations during the operation of the ventilator and the high-temperature environment during disinfection process. At the same time, it is resistant to ultraviolet rays and ozone ageing. It is not easy to harden, brittle or crack after long-term use, and the service life is far higher than that of ordinary rubber gaskets.
4. Good mechanical and adaptive properties
The silicone hardness (30-70 Shore A) can be adjusted to meet the needs of different parts: the soft type fits the face more comfortably, and the hard type is more durable for equipment housing sealing; and it is tear-resistant, wear-resistant, and can withstand the mechanical stress of frequent disassembly and long-term use of the ventilator.
Product features
1. Customised adaptive design
It can be moulded or die-cut according to the interface size and mask shape of different brands and models of ventilators (such as non-invasive ventilators, invasive ventilators, household ventilators), and supports the structural design of different shapes, multi-sizes and raised/grooves to ensure 100% matching with the equipment.
2. Low precipitation, low odour
Using high-purity medical silicone, the precipitation of impurities and small molecules is strictly controlled during the production process to avoid the respiratory health of patients caused by material volatiles entering the airway. It is especially suitable for long-term bedridden and low immunity medical people.
3. Both lightweight and comfortable
The silicone material has low density, and the sealing pad made of it is light and soft, which can reduce facial pressure when used for masks; some products can be designed as a "breathable and leak-proof" structure, which takes into account the sealing and partial skin ventilation to improve wearing comfort.
4. Strong resistance to chemical corrosion
It has good tolerance to disinfectants (such as chlorine-containing disinfectants, peroxyacetic acid), condensate and human sweat in the daily use of ventilators, and will not have swelling, deformation or performance decay, ensuring the long-term stability of the sealing effect.
FAQ:
Frequently Asked Questions and Answers about Ventilator Silicone Gasket
I. Problems of sealing and use experience
1. Problem: When wearing a ventilator, the edge of the silicone gasket leaks air, resulting in insufficient pressure and loud noise.
Answer: First, check whether the sealing pad matches the mask model (different brands/models of mask sealing pads cannot be used); if it matches, check whether the sealing pad has deformation, folds or surface stains, clean it and re-level it; if it still leaks, it may be that the sealing pad has aged and lost its elasticity, and a new pad needs to be replaced.
2. Question: There are indentations, bloating, and even red skin in the contact with the sealing pad on the back of the wear.
Answer: First of all, confirm whether the mask is too tight, and properly loosen the pressure of the headband/headgear; secondly, check whether the sealing gasket is damaged or hardened. The decline in fit after ageing is easy to lead to local compression; if it is a sensitive skin, you can apply medical-grade moisturiser to the contact part (avoid contact with the sealing pad body), or replace the softer one. Skin-shaped silicone seal.
II. Cleaning and maintenance issues
1. Question: The silicone gasket is deformed and the surface is sticky after cleaning. How to clean it properly?
Answer: Prohibit hot water (>60℃), alcohol, chlorine-containing disinfectants or irritating detergents, which will destroy the silicone structure. Correct method: Use 30-40℃ warm water with neutral soap/special ventilator cleaner, gently rub and rinse with water, dry in a cool place (avoid direct sunlight or drying), and put it back into the mask in time after drying.
2. Question: After using the gasket for a period of time, the surface has fine cracks and loses elasticity. How often should it be replaced?
Answer: The normal service life is 3-6 months (depending on the frequency of use and maintenance). If there are cracks, hardening, sealing failure or surface damage, they need to be replaced immediately; it is recommended to reserve 1-2 sealing pads to avoid sudden damage affecting the use.
III. Adaptation and quality issues
1. Problem: The newly replaced silicone gasket does not fit tightly with the mask, and it is easy to loosen and fall off after installation.
Answer: First of all, make sure that the sealing pad model exactly matches the mask (for example, the nose mask and the full-face mask sealing pad cannot be mixed); when installing, aim at the mask slot/groove, and press the edge to ensure that it is completely stuck. Some models need to be compacted clockwise/aneclockwise along the edge of the mask to avoid misalignment.
2. Question: How to judge whether the ventilator silicone gasket meets medical standards and avoid buying inferior products?
Answer: Priority is given to products with "medical-grade silicone" certification (such as FDA and CE certification); high-quality sealing pads have no pungent odour, soft and elastic to the touch, not easy to break after stretching, and uniform cross-section without bubbles; when purchasing, choose a regular medical device supplier, and ask for product qualification certificate and test report to avoid three production. Product.
IV. Special scenario-like questions
1. Problem: When used at night, the gasket slips and leaks due to sweating where the gasket is in contact with the face.
Answer: Make sure that the face is dry before wearing (you can wipe it with a clean towel); choose a medical silicone sealing pad with "anti-slip texture", or increase the fit appropriately when adjusting the mask headband (on the premise of no pressure); if you sweating severely, you can use a special facial sweat-absorbing patch for the ventilator (avoid attaching it to the gasket).
2. Question: After long-term use, mould spots or odours appear on the surface of the sealing gasket. How to thoroughly clean and disinfect?
Answer: Daily cleaning can be soaked with medical-grade hydrogen peroxide disinfectant (diluted by 1:100) for 5-10 minutes every week, and then rinsed and dried with water; if mould spots have been bred, it means that the sealing pad has been contaminated and cannot continue to be used. The new pad needs to be replaced immediately, and the mask itself should be thoroughly cleaned (brush with neutral detergent Then dry).
