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Dressings Based On Polyurethane Foams with a
specific combination of properties can be combined
with thermoplastic polyurethane (TPU) films which are
watervapour permeable and allow the wound to breathe.
Radiopaque Fillers Are Added To Polymers to make
catheters and other medical devices visible under
fluoroscopy or X-ray imaging. The filler affects the
degree of contrast and the sharpness of the image to
the extent that it influences the attenuation of
X-rays passing through the body and the device.
UHMwPE Fibers are the opposite - the strength is
much higher. The fibers on a weight basis are more
than 10 times as strong as steel, and a braid or
suture made from this fiber has the potential to be
twice as strong as a comparable polyester product. At
the same time, the elongation is hardly noticeable -
when ultimately reaching the breaking strength, the
elongation is just about 3%. This specific factor
supports new approaches. For instance, the fibers are
used in modern ligament fixations where the very low
stretch results in a very rigid fixation, improving
the chance for fast re-adhesion of the torn ligaments
back to the bone. |
New Innovative
Materials Have Infinite Applications as polymers
now are developed to a high new era :
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PTFE
(Polytetrafluoroethylene) : Catheter linings, single
and multilumen tubing, synthetic blood vessels,
endoscopes, surgical sutures, reconstructive
surgery, soft tissue regeneration patches
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PES (Polyethersulfone)
: Single and multi-lumen tubing, catheters
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PVC
(Polyvinylchloride) : Blood tubing, blood bags
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PE-UHMW
or PE-LD & HD (Polyethylene) : Surgical cables,
artificial tendons and orthopedic sutures, tubing
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PU
(Polyurethane) : Breathable wound dressings
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PC
(Polycarbonate) : Medical instruments and contain
ers with glasslike transparency, check valves and
tubing connectors
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PS (Polysulfone)
: Surgical and medical devices, clamps, artificial
heart components, heart valves
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EI (Polyetherimide)
: Reusable and sterilizable applications, surgical
skin staplers
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PEEK
(Polyetheretherketone) : Dentistry products, rigid
tubing
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PP
(Polypropylene) : Heart valve structures
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