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Medical Device Coatings Are Advancing At a Rapid Pace

November 17, 2016 by · Leave a Comment 

Improved patient outcomes are being tied to advanced medical device coatings.

medical-worldWhen it comes to medical device coatings, today’s technological advancements have allowed for improvements in therapeutic treatment. The coating materials formulas that are available for use makes it possible to deliver a wide array of therapeutic drugs and agents to elicit a range of tissue and bodily responses. It has helped thousands of patients and specialists when it comes to effective and positive treatment distribution. It continues to be developed today and look for it to have an even more profound effect on today’s medical industry.

An Example of Coating Usage

A device that is prone to the development of an infection will benefit from a coating that delivers antimicrobial drugs to inhibit the growth of foreign cells. Another example is a coating that provides a surface onto which certain cells may attach and grow. The outcome of the therapeutic coating impacts the overall time over which the coating acts. Also the PVD coating equipment used will also have a profound effect on the coating type.

For instance, a sputter coater that has enhanced capabilities in regards to providing the coating with additional medical films, may allow for specialists to treat conditions that may not be treated with standard coatings. This gives healthcare professionals options and flexibility in regards to patient treatment. Time will only tell whether or not there will be an expansion into which more serious and concerning illnesses and life-threatening diseases can be addressed through the use of medical device coatings.


Denton Vacuum, LLC manufacturers the finest vacuum coating systems available today. For more information, visit them online today.

Critical Factors of Physical Vapor Deposition

February 27, 2016 by · Leave a Comment 

Written by: Denton Vacuum, LLC

Prior to the coating process, consider all of the factors that play into quality of the film.

Physical vapor deposition coating, or PVD coating, is one of the simplest and most commonly used methods for deposition. That being said, the process of PVD coating requires the user to focus on critical aspects that directly affect the quality of the deposited material.

Features

The process of PVD coating occurs in a high vacuum environment with plasma being activated to reach extreme temperatures. The temperatures that the substrate is coated with reach a ballpark figure of 450 degrees to 1000 degrees.

Critical Factors

The most critical factor that the user needs to prioritize is the sterility of the surface. Any contaminant or dirty texture will result in a faulty thin film placed.

The sputter deposition system that is being used must be a god tool design and have cutting edge micro-geometry. It’s crucial that the parameters are optimized for minimized risks. Additionally there needs to be proper heat treatment – overheating will cause a drastic decrease in quality.

Be cautious that sharp edges are correctly honed or dulled. This will cause the thin film to tear and end up being a waste. A recommendation is to treat, as well as decontaminate, the surface to prevent any residue from forming.

Results

Through proper care and treatment, there should be a nano-grained, hard, and lubricated coating that has a high quality surface area. In order to come out with the best solution, the proper type of metal must be analyzed prior to beginning the process – the PVD system must configure to the specific metal used. It’s too often that the wrong metal is used, allowing the heat treatment to ruin the film layer.

More Insight into Ionization and Sputtering Systems

September 30, 2013 by · Leave a Comment 

What divides magnetron sputtering from various other sputtering approaches is the very high level of ionization of the target material which is deposited on the substrate. The film deposited can be as thin as a few atoms, but it’s nearly as strong as a diamond.

A magnetron sputtering system, likewise called high-power impulse magnetron sputtering (HiPIMS) and high-power pulsed magnetron sputtering (HPPMS), is a fairly new advancement in precision vacuum system processes. The first device was made by Kouznetsov in October of 2001. Most industries that create medical tools, optical instruments and semi-conductors have benefited from this technology

If a product to be coated requires many layers of coating, it may require a greater ionization, a requirement a magnetron sputtering system could do. The magnetron cathode uses electromagnetic fields to contain the atoms and molecules, creating a highly concentrated beam that bombards the intended material.

Magnetron sputtering systems also provide the benefit of offering more choices than traditional, non-magnetron techniques. Magnetron sputtering systems can deposit denser, harder films. Objects that need to be protected from abrasion, heat and pressure can benefit from ionization in the sputtering process. The magnetron sputtering process offers a superior result for efforts to coat sensitive instruments and devices.

Guest post is provided by Denton Vacuum, LLC, offering the magnetron sputtering system and more. Visit the website for more details at www.dentonvacuum.com.

Safety and Vacuum Sputtering Systems

July 18, 2013 by · Leave a Comment 

Guest post is provided by Denton Vacuum, LLC, distributor of the Sputter Deposition system and associated vacuum technology. Visit their website for more product information.

Many different materials can be used via vacuum metallization. Vacuum systems allow metals and other materials to be melted down at extremely high temperatures and condense on a target surface within the system. These systems are highly sensitive and require expert technicians for operation. For example, simply touching the system with bare hands can cause contamination due to oils in the skin. Proper cleaning requires expert care with gloves and a special solution. A certified technician is the best person to operate vacuum sputtering systems. Vacuum systems are heated to extremely high levels, so high that it reaches the plasma state of matter found in our sun. This is why it is extremely important to use a qualified technician to operate vacuum sputtering technology.

If a vacuum remains uncontaminated, it serves as an air tight seal for sputtering technology to occur. Sputtering allows material to condense on surfaces so durably; it can be compared to the hardness of a diamond. Chipping and scratching of delicate surfaces such as microscope lenses, or high impact, high heat factory equipment is prevented by coating with this technology. The results of thin film coating with vacuum technology end with a layer only microns thick. Any added bulk that would have been added by a spray coating, is now prevented with a sputtering system. Sputtering systems can be applied to a variety of industries including optics, automotive, and conductor manufacturing. Any industry requiring high heat, high pressure, high impact or highly abrasive environments may benefit from a sputtering system.

The Science and Application of Sputtering Systems

June 30, 2013 by · Leave a Comment 

Guest post is provided by Denton Vacuum, LLC, providing the magnetron sputtering system for a variety of industry applications. View their website for more information.

Vacuum sputtering technology like plasma-enhanced chemical vapor deposition allows for thin, diamond-like films to be laid on pieces of plastic or metal. The substrate to be laid in a film on the target is heated to levels so high, it can be compared to the temperature of the sun. As it cools, it condenses in a microscopic layer over the target, so thin that you would need an electron microscope to view the thickness of the layer. Because the layer is so durable, it can be used for high abrasion and impact surfaces to prevent chipping and scratching. This makes it perfect for factory environments and the creation of precision instruments and computer hardware.

Items coated through sputter deposition can endure enormously high temperatures considering that their coating was created at plasma levels. The great thing about a coating created through the sputtering method is that because the layering is only microns thin, it adds virtually no extra weight to the item being coated. In the semiconductor industry, sputtering is used to etch a target. The drawback of using the method has been described as a sort of wafer damage due to the intensity of the procedure.

An interesting fact about naturally occurring sputtering in the environment is that its effects can be observed in space. It is hypothesized that high electron beams have changed the physical and chemical properties of large bodies such as asteroids and the moon. Scientist also suspect that naturally occurring sputtering on a large scale may have been the cause of the disappearance of Mars’ atmosphere. By the same principles, the planet Mercury is able to revitalize its surface-bounded exosphere.