Medical Devices —
Texin® and Desmopan® Medical Grade Urethanes
Bayer
materials and solutions are used to create the next generation
of products in the medical device industry, and Texin®
and Desmopan®
thermoplastic polyurethanes (TPUs) are key parts of this innovation.
Over the years, medical product designers and manufacturers have
come to rely on Bayer to provide technically advanced medical
grade plastics like TPU that can help meet the critical design,
manufacturing and end-use performance parameters of a variety
of medical applications.
The Texin and Desmopan
families of thermoplastic polyurethanes are plasticizer-free thermoplastic
elastomers offering high elasticity and resilience, excellent
abrasion resistance and high tensile and tear strength. Both elastomer
product lines include medical grades with proven biocompatibility†.
These medical grade urethanes have been used in a range of medical
device applications including:
Texin
and Desmopan thermoplastic polyurethanes can be injection molded
or extruded. Use our contact
form or e-mail us at tpuinfo@bayer.com
to request more information about medical grade Texin
and Desmopan TPUs or to discuss your application.
Remarkably versatile
medical grade plastic
From soft and comfortable to the patient's skin to hard and resistant
to wear and tearing, Texin and Desmopan thermoplastic polyurethanes
are remarkably versatile medical grade plastics. These medical grade
elastomers offer excellent strength and elastic properties, even
at minimal wall thickness. They also feature elastic memory, with
the ability to maintain tension and resist leaking at joints.
Without the use of plasticizers,
Texin and Desmopan thermoplastic elastomers bridge the gap between
thermoplastics and rubber. Medical grades of Texin and Desmopan
TPU range in Shore hardness from soft and supple 85A to tough
and durable 70D. For example,
Desmopan DP 9370A softens at body temperature
while still maintaining its properties for such uses as monitor
sensors, gowns and breathable wound dressings. Texin and Desmopan
medical grade polymers can be an ideal alternative to PVC and
silicone.
Chemical and microbe
resistance round out the key properties of Texin and Desmopan
elastomers. These medical grade urethanes resist lipids, cleaning
and disinfecting agents, as well as resist the growth of algae,
fungi, mold and bacteria.
You
can learn more details about Texin and Desmopan thermoplastic
polyurethanes and other Bayer plastics for medical devices by
downloading the following publications:
The clear choice
in medical grade polymers
Seeing is believing, especially in the medical industry. If you
need clarity in an elastomeric material, Texin and Desmopan thermoplastic
elastomers are your clear choice for applications such as tubing,
catheters, connectors, luers and stopcocks. Medical grades of Texin
and Desmopan TPU are naturally clear or translucent for medical
devices requiring enhanced visual observation features. Additionally,
these elastomers can be made radio opaque with the addition of barium
sulphate to the resin compound.
You can sterilize
TPU
Texin
and Desmopan medical grade plastics withstand a variety of sterilization
methods, including ethylene oxide gas, gamma irradiation††,
dry heat and E-beam. Contact
us for more details about sterilization.
During
sterilization using steam autoclaving or boiling water techniques,
polyurethane materials may hydrolyze to their corresponding precursor
diamines (for example, aromatic polyurethane based on diphenylmethane
diisocyanate [MDI] may hydrolyze and produce methylene dianiline
[MDA]). This condition needs to be considered by the device manufacturer
in defining sterilization conditions.
Contact Bayer
about Texin and Desmopan medical grade urethanes
To
learn how Texin and Desmopan medical grade urethanes can help
you with your medical device, use our contact
form or e-mail us at tpuinfo@bayer.com.
One of our medical industry experts will reply promptly.
†
The Texin TPU products on this web page meet the requirements
of ISO 10993 Part 1 “Biological Evaluation of Medical Devices”
tests with human tissue contact time of 30 days or less. ISO 10993-1
tests have mostly replaced older USP Class VI standards. Contact
your Bayer MaterialScience representative for a list of biocompatibility
tests that have been completed.
††
Gamma irradiation may cause color shift.
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