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Biomedical Polymers and Compounds™

Presentations

Radiopaque Compounds for Minimally Invasive Medical Devices

Posted: November 17, 2017

Radiopaque Compounds for Minimally Invasive Medical Devices

Definition
Polymers are inherently transparent to x-ray.  Minimally invasive medical devices that require intra-operative visibility frequently use radiopaque polymer compounds.  These are blends of polymers and radiopaque additives, such as barium, bismuth and tungsten.  Applications for these blends include cardiovascular catheters, central venous catheters, neurovascular catheters, feeding tubes and more.

Purpose
Provide an understanding of the primary radiopaque fillers used in in medical polymers, including recommended filler loadings for specific polymers.

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Healthcare Associated Infection Prevention

Posted: November 9, 2017

Healthcare Associated Infection Prevention

Definition
One in every 25 patients has at least one hospital associated infection.  One in every four of these is related to a medical device, such as indwelling cathters.  Antimicrobial additives, such as ionic silver, can be added to medical plastics to prevent or reduce the infection from these devices.

Purpose
Provide an understanding of the causes of hospital infections and the antimicrobial solutions for reduced incidence rates, with particular focus on additives that can be added to medical plastics.

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Sterilization Technologies for Medical Devices

Posted: November 3, 2017

Sterilization Technologies for Medical Devices

Definition
The three primary methods for sterilizating medical devices include radiation, ethylene oxide and steam.  Device type, quantity to be sterilized and packaging are a few considerations for selecting the appropriate method.  Polymers used in the device components must also be considered, since some can degrade or diminish in functionality from the sterilization process.

Purpose
Provide an overview of the common sterilization methods used for medical devices and the impact of these methods on medical polymers.

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Overview of Medical Polymers

Posted: October 26, 2017

Overview of Medical Polymers

Definition
Thermoplastics play a critical role in modern medical devices.  Amorphous and crystalline thermoplastics offer distinct performance properties.  Within these categories are a variety of specific polymers suitable for a wide range of device components.

Purpose
An overview of amorphous and crystalline thermoplastics, along with specific examples and attributes for each category.

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Color Additives for Medical Device Plastics

Posted: October 23, 2017

Color Additives for Medical Device Plastics

Definition
Pre-color compounds and color concentrates for medical applications are most commonly manufactured using two categories of color additives: FDA Food Contact Pigments, and FDA Medical Device Pigments.  The selection of one pigment classification over the other may affect the FDA approval process for medical devices. 

Purpose
Selection of pigments suitable for medical device plastics

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Polymer Compounding Basics

Posted: October 18, 2017

Continuous Process Melt Extrusion Polymer Compounding

Definition
Upgrading or adding value of polymers or polymer systems through melt blending & mixing of additives into a polymer matrix or melt mixing two or more polymers together to make an alloy

Purpose
Tailor properties to satisfy a specific applications requirements

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