Medical Design Briefs - May 2023 - 19

MABS with GS-90:
SAN with GS-90:
2400
2200
2000
1800
1600
1400
1200
1000
20
25
Amplitude [µm]
200 N
300 N
400 N
200 N
30
2400
2200
2000
1800
1600
1400
1200
1000
20
25
Amplitude [µm]
300 N
400 N
200 N
30
4000
3500
3000
2500
2000
1500
1000
20
25
Amplitude [µm]
300 N
400 N
30
PC with GS-90:
Fig. 8 - GS-90 with MABS, GS-90 with SAN, and GS-90 with PC results.
When designing a part made out of
SAN for USW, brittleness should always
be kept in mind. And the test results
clearly indicate that low amplitudes and
low weld forces should be used whenever
possible.
The PC to GS-90 combination showed
great results. Using medium conditions
(25 µm amplitude and 300 N weld force)
should always be a good starting point.
The recommended processing conditions
for each material combination are
shown in Table 2. Processing results
from such tests under idealized conditions
cannot be directly transferred to
real applications. However, they give a
good indication of the general behavior
and for optimizing the process conditions.
Overall, the CYROLITE® materials
performed very well in all tested material
combinations, as shown by the pictures
of good welds in each example above.
CYROLITE® Med 2 showed an exceptionally
wide process window with extremely
low variance in pull forces results.
CYROLITE® GS-90 and PC showed
an even stronger result than a potential
PC to PC weld was showing. These phenomena
demonstrate why a material like
CYREX (PMMA/PC combination) is
also available for medical applications.
This article was written by Dr. Dirk
Heyl and Andrew Sneeringer, Technical
Marketing Managers for CYROLITE®
advanced medical acrylics. For more information,
visit www.roehm.com/en.
Medical-grade tubing - Over 250 tubing options available
In stock and ready for immediate delivery!
* Conveniently packaged small coils for prototyping
* Extended lengths for large-scale production requirements
* Cut-to-length pieces and custom coil sizes
* Available in a variety of brands, types, diameters, durometers and materials
* Low minimum order quantities
* Free samples
Log on to qosina.com to learn more about our tubing options,
request samples or place an order.
Qosina Corp.:
Qosina Europe:
qosina.com
+1 631 242-3000
qosina.com/qosina-europe
info@qosina.com
+39 02 66401337
info@qosinaeurope.com
Medical Design Briefs, May 2023
www.medicaldesignbriefs.com
19
Pull Force [N]
Pull Force [N]
Pull Force [N]

http://www.roehm.com/en http://info.hotims.com/84479-732 http://www.medicaldesignbriefs.com

Medical Design Briefs - May 2023

Table of Contents for the Digital Edition of Medical Design Briefs - May 2023

Medical Design Briefs - May 2023 - COV1a
Medical Design Briefs - May 2023 - COV1b
Medical Design Briefs - May 2023 - Cov1
Medical Design Briefs - May 2023 - Cov2
Medical Design Briefs - May 2023 - 1
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Medical Design Briefs - May 2023 - Cov3
Medical Design Briefs - May 2023 - Cov4
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