Silicones are known for their feel-enhancing effects and lubricity. Silicones provide effective lubrication solutions for many medical device applications by:
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Common inks tend to fail when introduced to extreme conditions or silicone substrates. NuSil Technology offers silicone inks designed to address this challenge. The R-1008-X silicone ink series is non-corrosive and features excellent adhesion to a variety of substrates, especially to other silicones. The unique materials are one-part, flowable silicone dispersions that cure rapidly at room temperature when exposed to atmospheric moisture. More…
Fluorosilicones resist degradation when exposed to jet fuel, solvents, gasoline, or crude oil and operate in a broad range of temperatures.
Controlled Volatility RTV Silicone Foam
CV-2391 Yields a low to medium density silicone rubber foam when rapidly catalyzed with a low viscosity from a 1:10 Mix Ratio.
Applications in shock and vibration dampening situations requiring a lightweight, flexible foam. For intricate back-filling due to a low viscosity in applications requiring low outgassing and minimal volatile condensable materials.
Lightweight and Ultra Low Outgassing™ Adhesive
SCV-2586 is a lightweight, thermally stable adhesive, provides Ultra Low Outgassing™ characteristics for Aerospace and Electronics applications.
Polymer Systems Technology Ltd recently added SCV-2586 to its line of Ultra Low Outgassing™ silicone materials. SCV-2586 is a lightweight adhesive for applications requiring thermal stability and a broad operating temperature range in which volatile condensables and outgassing are a concern.
Optically clear, high durometer silicone lens
Two-part, optically clear, non-phenyl containing addition cure silicone designed to stay thermo-optically stable with heat and Uvexposure.
For molding or casting hard, non-yellowing lenses for LED, solar or other applications where a hard, optically-stable silicone is needed. Viscosity is designed to be used with conventional Liquid Injection Molding equipment and the material is self-leveling for casting application techniques.
Tacky Gels for Healthcare Applications
Silicone tacky gels are ideal for processing into sheets or pads for various topical applications requiring a temporary adhesive. Some key examples include:
Silicone gels have a history of biocompatibility, are non-allergenic, and offer superior breathability. In addition, dimethyl silicone tacky gels provide the best moisture permeability on the market, demonstrating Water Vapor Transmission Rates (WVTR) values of up to 68 gm/m2/day.
The advantages of using a silicone gel system are:
Understanding Silicones in Controlled Release Applications
As one of the most widely researched biomaterials to date, silicone has an approximate 50-year legacy of use in the healthcare industry. This history of biocompatibility has made silicone a material of choice for both long and short-term implantable device applications. These technologies evolved as the result of pharmaceutical and medical device manufacturers seeking novel ways to achieve their therapies. So, raw materials that were formerly chosen for their performance capabilities in medical device applications are now tasked with maintaining those requirements but also with meeting a host of new performance expectations that are specific to drug delivery applications. Faced with these new challenges few raw materials have succeeded in transitioning quite as well as silicone. This is because silicones possess certain dynamic characteristics which allow them to be compounded in with a host of actives. These same unique characteristics also allow them to release those actives from a molded/extruded device in a predictable way – whether that application is for transdermal, transmucosal, short or long-term human implantation. This article will highlight key attributes of certain silicones as well as key considerations when selecting a silicone.
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Methods Used to Sterilize Silicone Based Medical Devices
Methods Used to Sterilize Silicone
The majority of sterile goods produced in the medical device and healthcare industries are terminally sterilized to remove unwanted microbial contamination. There are several sterilization methods commonly used for medical devices including: dry heat, steam autoclaving, ethylene oxide, gamma radiation and electron beam sterilization. Several concerns arise about the effects sterilization has on material properties including silicones….
Thermally Stable Silicones
Silicones are highly resilient materials that have been used as adhesives and sealants in aircraft and aerospace applications for decades. Silicones offer thermal stability at high operating temperatures, as high as 300°C depending on the exposure time…
