3D Printed nasopharyngeal (NP) Test Swabs for COVID-19.
The most common diagnostic test currently used for detecting the
coronavirus in mucous samples is PCR, a polymerase chain reaction test that can
detect nucleic acid from SARS-CoV-2 in respiratory specimens. In order to
conduct this test nasopharyngeal (NP) test swabs are needed. There is a
shortage of the nasopharyngeal (NP) swabs needed to collect samples for
COVID-19 testing. These swabs are typically used for testing for influenza and
other respiratory infections. The current and impending supply chain shortages
are serious enough that clinicians are beginning to design and test their own
swabs as quickly and safely as possible. For example, a 3D Printed nasopharyngeal (NP)
Test Swabs. Medically recognized SLA 3D printing systems and
materials—commonly used in the dental industry—have been adapted to fulfill
production of nasal swabs. The resin-based process offers high-resolution
printing, which is needed for the fine components, while bio-compatible
materials that have already undergone certification for dental applications can
be used right away.
NP swabs overview:
NP swabs are flexible sticks with a bristled end that are inserted
into the nose to the back of the nasal cavity and swept around to collect
material that sticks to or wicks up the bristles. The swab is then placed into
a vial that contains a culture medium. Swab sticks have an intentionally weak
point 7–8 cm from the bristled tip, which allows the stick to be broken to the
correct length so that the vial can be capped before it is transported to a
laboratory for testing.
references:
The design link:
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