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Updated: Aug 10, 2026

04:46
The Quantification of Injectability by Mechanical Testing
Published on: May 13, 2020
Initial worker evaluation of a new safety syringe
S Mulherin1, L S Rickman, M M Jackson
1Epidemiology Unit, UCSD Medical Center 8951, 92103, USA.
Infection Control and Hospital Epidemiology
|September 1, 1996
Summary
A new safety syringe had low activation rates (59.5%) and poor user satisfaction. Future safety device development should prioritize passive activation and user experience for better adoption.
Area of Science:
- Medical Device Technology
- Patient Safety
- Healthcare Innovation
Background:
- Needle-stick injuries pose a significant risk to healthcare workers.
- Existing safety-engineered devices aim to mitigate these risks.
- Evaluating novel safety syringe designs is crucial for improving healthcare safety.
Purpose of the Study:
- To prospectively evaluate the activation rate and user acceptance of a new one-step safety syringe.
- To identify factors influencing the adoption and satisfaction with the new safety syringe.
- To inform future development of effective and user-friendly safety devices.
Main Methods:
- Prospective evaluation of a novel one-step safety syringe.
- Conducted at a major academic medical center (University of California, San Diego Medical Center).
- Data collection on syringe activation rates and user feedback on acceptance and satisfaction.
Main Results:
- Low activation rate observed: only 59.5% of 390 syringes were activated.
- User acceptance and satisfaction with the new safety syringe were unfavorable.
- Significant room for improvement in device design and usability.
Conclusions:
- The evaluated one-step safety syringe demonstrated suboptimal performance in a real-world clinical setting.
- Passive activation mechanisms and enhanced end-user consideration are critical for successful safety device development.
- Future research should focus on user-centered design principles for medical safety devices.

