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Ein 3D gedrucktes
STETHOSKOP
für weniger als 4 €
work in progress
https://goo.gl/C95ZCr
letzte Bearbeitung am: 25.03.2018
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INTRO VIDEO [en.]
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Ergebnis: 3D gedrucktes MODELL
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Zum Vergleich:
Der “Gold Standard”
Littmann Kardiologie III
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Abmessungen/Kosten der 3D Teile
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Die erforderlichen 5 STL - FILES [24.03.2018]
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5 STL-Teile
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3D Druckergebnis (~ 3-4 Std. pro Set)
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[DE] Druck-Anleitung
● Der INFILL muss unbedingt 100% betragen!
● Alle Teile sollten in ABS oder PLA gedruckt werden. Die
Schichthöhe sollte 0.2 mm sein, dier erste Schicht kann auch 0.3
mm hoch sein.
● Die Ohrstücke und das Y-Stück sollten mit einem “Brim” von 2
mm gedruckt werden.
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BOM of other Hardware
Some vendors are suggested. See Bill of materials ODS file for more information.
● 40cm - 50cm Silicone 12mm or 13mm OD, 8mm ID
○ 8MM I.D X 12MM O.D NGP60 Clear Translucent Silicone Hose Pipe Tubing(USD$6.95/meter)
○ 8MM I.D X 13MM O.D NGP60 Clear Translucent Silicone Hose Pipe Tubing(USD$7.34/meter)
● 20cm Silicone 6mm or 8mm OD, 4mm ID (cut into 10cm pieces)
○ 4mm ID x 6mm OD
○ 4mm ID x 8mm OD
● Diaphragm: 40mm diameter cut from a report cover with approx 0.35mm plastic sheet
○ Staples 21639 report cover (UPC 718103160223) (USD$8.84)
○ You can cut the diaphragm by hand or with a stamp like this one
● Earbuds: Any large-sized standard earbuds will do.
○ Silicone Earbuds 7 Pairs - Large size
Optional hardware:
● Metal spring for holding ear tubes together
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[GE] BOM der anderen Teile
● Siehe auch das ODS file für weitere Informationen (engl.
Textversion)!
● Adaptiert an deutsche Verhältnisse werden nachfolgend einige
Bezugsquellen genannt.
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[GE] Silikonschlauch A (lang)
Schlauch A
● Silikonschlauch, lebensmittelecht für Nahrungsmittelproduktion
● Länge: 40 - 50 cm
● Aussendurchmesser: 12 oder 13 mm
● Innendurchmesser : 8 mm
● Bezugsquellen in D:
tbd
● 8MM I.D X 12MM O.D NGP60 Clear Translucent Silicone Hose Pipe Tubing( € 6.95/meter)
● 8MM I.D X 13MM O.D NGP60 Clear Translucent Silicone Hose Pipe Tubing ( € 7.34/meter)
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[GE] Silikonschlauch B (kurz)
Schlauch B
● Silikonschlauch, lebensmittelecht für Nahrungsmittelproduktion
● Länge: 10 cm (2 Stück erforderlich)
● Aussendurchmesser: 6 oder 8 mm
● Innendurchmesser : 4 mm
● Bezugsquellen in D
tbd
● 4mm ID x 6mm OD
● 4mm ID x 8mm OD
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[GE] Die Stethoskop - Membran
Die Stethoskop Membran
● Der Clou ist hier die Herkunft des Materials für die Stethoskop - Membran:
○ Das Kunststoff Deckblatt eines Papierhefters. Very clever!
● Membran-Durchmesser: 40 mm (ggf. ausstanzen!)
● Membran-Dicke: ca. 0.35mm [aus der Plastikabdeckung eines Ordners]
● Bezugsquellen D:
● Bezugsquelle USA:
○ Staples 21639 report cover (UPC 718103160223) (USD$8.84)
○ You can cut the diaphragm by hand or with a stamp like this one
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[GE] Die Ohrstöpsel
● Ohrstöpsel: Any large-sized standard earbuds will do.
○ Silicone Earbuds 7 Pairs - Large size
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[GE] optional: Metallfeder
Optionale Hardware:
● Metallfeder for holding ear tubes together
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Diaphragma Punch 40 mm
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[GE] BOM of other Hardware
Diaphragma Punch 40 mm
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[GE] BOM of other Hardware
EARBUDS = Silikon Ohrstöpsel
● 3-4 €
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Montage I / II
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Montage II / II
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Vergleich: Littmann III vs Glia 2
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● source: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0193087
● Das Glia 2 muss keinen Vergleich mit dem sog. “Goldstandard” scheuen, wie in
der genannten, wissenschaftlichen Studie soeben nachgewiesen werden
konnte.
● Die Frequenzgänge sind vergleichbar. Lediglich um die 700 Hz schlägt sich
Littmann besser (siehe Messkurve)
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Vergleich: Littmann III vs Glia 2
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● http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0193087
https://goo.gl/C95ZCr
LINKS
● http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0193087
● https://www.thingiverse.com/thing:2826304
● https://github.com/GliaX/Stethoscope/blob/master/README.md
● https://github.com/GliaX/Stethoscope
● https://glia.org/#projects
● https://www.facebook.com/glia.project
● https://twitter.com/trklou
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MEDIA I
● https://www.independent.co.uk/news/world/middle-east/gaza-doctor-tarek-loubani-creates-3d-printed-
stethoscopes-to-alleviate-medical-supply-shortages-10495512.html
● http://www.cbc.ca/news/canada/london/london-doctor-develops-3d-printed-stethoscope-1.4576965
● https://mediarelations.uwo.ca/2018/03/14/research-team-develops-clinically-validated-3d-printed-
stethoscope/
● https://www.sciencedaily.com/releases/2018/03/180314144954.htm
● https://www.ctvnews.ca/health/researchers-develop-3d-printed-stethoscope-for-use-in-war-zones-low-
income-areas-1.3842994
● https://www.myminifactory.com/de/object/3d-print-medical-grade-stethoscope-59779
● https://www.plasticstoday.com/medical/3d-printed-plastic-stethoscope-costs-less-3-performs-well-
models-costing-almost-200/158853891058444
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MEDIA II
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TEAM
This project is the work of a large team, including
Alex Pavlosky, Jennifer Glauche, Spencer Chambers,
Mahmoud Al-Alawi, Kliment Yanev, Carrie Wakem
and Tarek Loubani.
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adapting text/data to german conditions
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done as of 25.03.2018
with great enthusiasm
e-mail:
basic.health.check@gmail.com
https://goo.gl/C95ZCr
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