Wednesday, October 13, 2010 12:50 PM
Sterilization Effects on Select Medical Device Grade Adhesives
By Scott D. Anderson and Christine Marotta, Henkel Corporation
The relationship between the end use of the device, the substrates specified, the adhesive chemistry, and the actual design of the bond joint can all impact the strength of the final assembly, yielding different results for each device. To ensure a robust device design, engineers must thoroughly test the assembly under both manufacturing and sterilization conditions.
Advances in contagious disease coupled with higher performing devices have resulted in a shift in the manner in which medical devices are fabricated and assembled. The introduction of plastics into the device market led to new methods of assembly and new concerns for sterilization resistance. Adhesives became the method of choice for many device manufacturers due to a number of reasons including the ability to: Bond a variety of substrates Bond and seal Fill large gaps Be easily au more...
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Monday, January 31, 2011 by
Two comments:
1- It was not explained how the adhesives were chosen. I am not even sure if all of adhesives studied are used in all of the sterilization areas mentioned.
2- I am dissappointed that only three of the sterilization methods were compared. I am looking forward to a more complete study.
Thursday, January 27, 2011 by
Interesting article, but I'm surprised that it doesn't address adhesion at all. In my experience, adhesion, especially to plastics, has been greatly affected by various methods of sterilization. Certain adhesives more than others, such as epoxy, where water vaport from EtO may soften the adhesive, for example. The pull strength on needle assemblies only partially addresses the question of adhesion, because while the adhesive adheres to the metal tube, it is encapsulated within the plastic hub and adhesion plays less of a role.
Tuesday, January 18, 2011 by
Interesting and very technically supported article. My company has spent quite a bit of time trying to do the opposite; creating medical grade adhesive removers for use in sterile processing centers and manufacturing facilities.
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