Medical Manufacturing and Outsourcing Special Report - November 2021 - 15

for im plants. The
unique characteristics
of high-consistency rubber
(HCR) silicones offer an uncured,
Global
Market Trends
According to The
Business Research Company, the
global medical device market reached
a value of nearly $456.9 billion in 2019,
having increased at a compound annual
growth rate (CAGR) of 4.4 percent
since 2015. The market is expected
to grow to $603.5 billion by 2023.
The growth in the medical device
market is causing an increase
in demand for medical tubing.
According to Grand View Research,
the global medical tubing market
was estimated at $6.4 billion in 2018
and has an expected CAGR of 9.2
percent through 2025 when it is expected
to reach $11.9 billion.
This growth can be attributed to
the availability of cost-competitive,
medical-grade plastics, a surge in
demand for single- use, disposable
devices (due to growing awareness
of hospital-acquired infections and
concerns with spreading them), and
developing countries having increased
access to healthcare supplies.
Factors and Material
Considerations in Tubing
and Hoses
Before designing tubing and hoses
for medical devices, engineers should
consider factors such as size, hardness,
tear strength, elongation, surface
friction, transparency, and visibility.
Depending on the application,
medical hoses and tubing are produced
in a variety of materials. These
include plastics, such as fluorinated
ethylene propylene (FEP), nylon,
PVC, polyetheretherketone (PEEK),
polytetrafluoroethylene (PTFE), and
thermoplastic elastomers (TPE), as well
as elastomers, in particular, silicone.
Silicone is a key material for tubing
in medical devices, making it attractive
for healthcare applications, especially
" green " strength that allows for
a variety of custom processing
techniques. Additionally, silicone is
nonreactive with other elements,
odorless, tasteless, and nontoxic,
and it has good tensile strength.
Tubing Technologies
Recent innovations and techniques
in medical tubing manufacturing
are allowing medical device
manufacturers to meet patients'
needs more effectively. Tubing
technologies include the following:
* High-precision, microextrusion, and
thin-walled tubing for minimally
invasive surgical devices.
* Platinum-cured silicone
for use in im plants.
* Multicomponent extrusion featuring
radiopaque stripes for visibility
in an x-ray or fluoroscope.
* Reinforced and kink-resistant tubing
used to keep fluid paths open.
* Extruded ribbon and film used
in diaphragms to support seals
in devices such as pacemaker
generator housings.
* Jacketed wires and cables used to
power implantable heart pumps.
* Twisted extrusions for applications
in which implanted power or
sensing cables require strain
relief from repeated flexing and
bending, as with pacemaker leads.
* Custom profiles used to seal housing
assemblies and repair heart valves.
* Bump tubing applied to plastics
and elastomers, including silicone.
* Bonded or overmolded stops
typically added to peristaltic pumps
for infusion, internal feeding,
laboratory equipment, di ag nostic
equipment, and fluid transfer.
* Formed extrusions used to fit
tortuous anatomy or spiral shapes
that might be used to soften
contact within the bladder.
* Multilumen extrusion for
catheters, electric medical
devices, analytical equipment,
fluid transfer, drug delivery, and
medical instrumentation.
* Geometric transitioning extrusion
applied to custom applications
with precision tolerances.
* Geometric transitioning single lumen
for custom end assemblies, such
as accommodation of connectors,
fittings, and peristaltic pumps.
Multilumen extrusion is suitable for catheters, electric medical devices, analytical equipment, fluid
transfer, drug delivery, and medical instrumentation. (Credit: Trelleborg Healthcare & Medical)
MEDICAL MANUFACTURING AND OUTSOURCING SPECIAL REPORT
NOVEMBER 2021 15

Medical Manufacturing and Outsourcing Special Report - November 2021

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