Application of Vacuum Coating CVD Electric Furnace in the Medical Field

The application of vacuum coating CVD electric furnace in the medical field is extensive and critical, mainly reflected in the following aspects:

1. Surface treatment of implantable medical devices
Cardiac pacemakers and defibrillators: These devices require long-term implantation in the human body, and CVD electric furnaces provide them with good insulation performance and biocompatibility by depositing a Parylene coating. This coating can effectively protect the electronic components inside the equipment from erosion by human body fluids, ensuring the normal operation and service life of the equipment. At the same time, it can also reduce the stimulation and potential rejection reactions of the device to human tissues.
Vascular stent: After implantation, vascular stents need to exist in human blood vessels for a long time. The Pareto coating deposited by CVD electric furnace can improve the corrosion resistance and biocompatibility of the stent, reduce the stimulation of the stent on the blood vessel wall, and lower the risk of vascular restenosis. The uniformity and ultra-thin characteristics of the coating improve the adhesion of the stent within the blood vessels, which helps promote the growth and repair of endothelial cells.
Orthopedic implants: For orthopedic implants such as artificial joints, bone plates, etc., the Parylene coating deposited by CVD electric furnace can enhance their corrosion resistance, prevent metal implants from corroding in the human environment and releasing harmful substances, and reduce inflammation and damage to surrounding tissues. Meanwhile, the coating can also enhance the bonding strength between the implant and the bone, promoting bone healing and repair.

2. Protection of Medical Sensors
Medical sensors are used in medical devices to detect various physiological parameters, such as temperature, pressure, heart rate, etc. The Parylene coating deposited by CVD electric furnace can protect the sensor from external environmental interference and corrosion, ensuring the accuracy and stability of the sensor. This is crucial for medical devices that require long-term monitoring of patients’ physiological parameters.

3. Protection of small electronic medical equipment
Small household medical electronic devices such as hearing aids and electronic blood pressure monitors also use Parylene coatings deposited on CVD electric furnaces. This coating can provide waterproof, moisture-proof, and dust-proof protection for these devices, improving their reliability and service life. For example, electronic blood pressure monitors used in humid environments, without this coating protection, their internal electronic components are easily damaged by moisture.

4. Surface modification of medical catheters and intubation tubes
Medical catheters and catheters need to be inserted into the human body, and the Parylene coating deposited by CVD electric furnace can make their surface smoother, reducing friction and damage to human tissues. At the same time, the coating also has antibacterial and anti adhesive properties, which can reduce the risk of infection and prevent the formation of blood clots or dirt accumulation inside the catheter. This is particularly important for patients who require long-term indwelling catheters.

5. Optimization of drug delivery system
CVD electric furnaces can also be used to prepare drug carriers, such as nanoparticles, microspheres, and nanoporous materials. By encapsulating drugs in a carrier, controlled and targeted drug release can be achieved, improving drug efficacy and reducing side effects. This is a safer and more effective treatment option for patients who require long-term medication.