Ventilator Thermal Solutions

Ventilator Thermal Solutions

Ventilator Overview:

Ventilator is a vital medical device that can prevent and treat respiratory failure, reduce complications, save and prolong patient’s life; it is an effective means to artificially replace autonomous ventilation function and has been widely used in various Respiratory failure caused by various causes, anesthesia and respiratory management during major surgery, respiratory support therapy and emergency resuscitation, occupy a very important position in the field of modern medicine.
Medical ventilators are divided into single-function rescue and emergency ventilators, (sleep) auxiliary therapy ventilators, and high-intelligence, fully functional comprehensive ventilators according to different uses.

Ventilator Thermal Solutions

The basic structure of the ventilator:

The basic structure of the ventilator with mixed electronic circuit and mechanical air circuit is generally composed of oxygen source, solenoid valve, mixed air device, pressure limiting valve, humidifier and temperature control circuit, airway resistance meter, breathing valve, signal box. , solenoid valve control circuit and other nine parts.

As a kind of treatment equipment, the quality of use is directly related to the health and safety of patients; if the breathing mode and parameter settings are reasonable, it is a good device for curing diseases and saving people; otherwise, it will delay treatment and even become a ‘killing machine’; therefore, In-depth familiarity with the use of ventilators is very necessary.


In addition, medical-grade adhesives have been widely used in the medical device assembly industry, and basically all medical devices or diagnostic equipment may use medical-grade adhesives; for medical device manufacturers, when deciding to choose an adhesive, usually Extensive testing and validation is required to determine the performance of an adhesive. In the field of medical device manufacturing, manufacturers are more proactive in focusing on adhesive selection criteria and requirements for good bonding performance.

thermal pad
thermal pad

Glue requirements for ventilators:

  1. The electronic module is potted, insulated and thermally conductive;
  2. Strong adhesion to electronic components and thermal conductivity;
  3. Environmental protection, non-toxic, with routine testing certification and qualifications;
  4. Moisture-proof, anti-static, dust-proof, mildew-proof, salt-fog resistance, etc. for circuit boards.

Ventilator glue scheme:

Ventilator glue locationGlue function categoryAdhesive Features
Electronic components heat dissipationThermally conductive adhesive, thermally conductive silicone sheet, thermally conductive silicone greaseExcellent heat resistance and thermal conductivity, good thermal conductivity, temperature range -50~200℃
electronic modulePotting compoundPotting protection, insulation, moisture-proof, shock-proof, dust-proof, anti-corrosion, anti-aging
Plastic vs Metal (Bezel)adhesive sealantHigh bonding strength, no yellowing occurs under high temperature and strong ultraviolet rays after curing, and the material properties are stable
SMT patchpatch glueGood bonding effect, suitable for bonding of heat-sensitive components with low temperature curing, or use in occasions where rapid curing is required
circuit boardThree anti-paintGood protective performance, with moisture-proof, anti-static, dust-proof, anti-mold, salt spray resistance and other properties

Due to the different operating environment, structure and process of the ventilator, the glue application plan is different. For more detailed plans, please contact Cohetion

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