Stethoscope: Difference between revisions

This page was part of an MTU course MSE4777 OA and MSE4777 OB/MSE5777/EE4777/EE5777: Open-source 3-D printingPlease leave comments using the talk page. The course runs in the Fall semester. It is not open edit.Read more...

Stethoscope

Project developed by [Bwbarker]

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Abstract

• The Stethoscope is one of the most basic medical tools. It allows a trained medical professional to diagnose issues with the heart and lungs. Stethoscopes come in a range of prices and quality, but all are breakable. This Stethoscope only requires some surgical tubing or similar airtight tubing and 3D printed parts.

Bill of Materials

• BOM
  • 3D printer
    • Filament
    • STL and/or OpenScad files
  • Surgical tubing

Tools needed for fabrication of the OSAT

1. MOST Delta RepRap or similar RepRap 3-D printer
2. Knife or scissors

Skills and Knowledge Necessary to Make the OSAT

• No special skills needed to build, To use this device propertly takes some training.
  • Stethoscope Overview

Technical Specifications and Assembly Instructions

1. There are 7 seperate prints for this device listed below with there print times (depending on your printer and settings)
   1. Bell
      1. Approximately 2 hours
   2. Y tubing joing
      1. Approximately 1/2 hour
   3. 2 small tubes
      1. Approximately 1 hour each
   4. Cross piece
      1. Approximately 3 hours
   5. 2 earpieces
      1. Approximately 4 hours each
2. Assembly time depends on how much post printing modifications you need to do. Some filing or sanding may be necessary for a great fit.

• 

  Printed Parts

Common Problems and Solutions

• For a really tight plastic on plastic fit, some sanding or filing will need to be done.

Cost savings

• Costs
  • Plastic at $25 per kilogram,
  • Rubber tubing $2.30 per foot, 2 feet, $4.60
• Commercial Equivelent
  • Low cost - $7.99 - pedometerusa
  • High cost - $75 - Littmann

• Savings between

References

• The sources of information (e.g. engineering handbooks, journal articles, government documents, webpages, books, magazine articles etc.). References should use the <ref> </ref> and <references/> tags and can be in any format but should include all the information necessary for someone else to find the same information you did. For example: ^[1]

Based on the developmental needs addressed (e.g. food, heat, electricity, clean water, health care, etc.) be sure to label your device in the proper categories e.g. use [[Category:Water]]. Be sure to categorize your device so that it will be easy to find – for example “Low voltage connection basics” is categorized in [[Category:How tos]] [[Category:Electricity]] [[Category:Electric lighting]].