Redesign%20of%20the%20Safety%20Syringe

1
Redesign of the Safety Syringe

• Jason Keiser, Jessica Chechak,
• Ty Weatherby
• BioE 1161
• 1/25/05

2
Why is a Safety Syringe Needed?

• To prevent the reuse of the syringe on more than
  one individual.
• To prevent damage to the needle before use.
• To provide a more biohazard compatible device for
  disposal.
• To prevent needle-stick injuries before and
  after use.
• For home users such as diabetics.
• These preventative measures may help to prevent
  the spread of AIDS and other blood-born diseases.

3
What Are We Doing?

• Current safety syringes employ one of two
  features
• Retractable Needle
• Retractable Needle Guard

• Our project goal is to incorporate both of these
  features into one device.

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The Design
5
Features
Protective Needle Shield
Push Button
Retractable Needle
6
How It Works
3.) Retract Protective Shield
1.) Remove Cap
2.) Depress Push Button
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4.) Depress Plunger Expelling the Medication
5.) Push down Plunger Until Click is Heard
Needle Retracts
8
6.) Replace Cap
7.) Discard
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Schedule

• January
• Complete Design
• February
• Design Review (Early)
• Preliminary Prototype Creation (Mid)
• Physical Prototype Testing (Late)
• March
• Physical Tests Continued (Early)
• Make Corrections to Design if Needed (Mid)
• Create Final Prototype (Mid-Late)
• April
• Present Completed Safety Syringe