Innovative One-Handed Syringe Handle Design for Anterior Chamber Paracentesis - Summary - MDSpire

Innovative One-Handed Syringe Handle Design for Anterior Chamber Paracentesis

  • By

  • Liangbo Linus Shen

  • Jay M. Stewart

  • Mitchel A. Cole

  • Madelynn E. Mackenzie

  • Frank Brodie

  • November 28, 2025

  • 0 min

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Objective:

To evaluate a novel 3D-printed syringe handle that allows one-handed anterior chamber paracentesis using standard syringes, specifically addressing ergonomic challenges such as the need for better control and safety during the procedure.

Key Findings:
  • All procedures achieved ≥ 100 µL fluid aspiration with no intraocular injuries in the novel method, indicating a high safety profile.
  • The median aspirated volume was significantly lower with the novel device (120 µL) compared to the conventional method (200 µL, P < 0.001), suggesting improved control.
  • Median procedure time was reduced by 25% with the novel device (26.9 seconds) compared to the conventional method (35.7 seconds), though not statistically significant (P = 0.13), indicating potential efficiency.
  • Participants rated the novel device favorably for ease of use, control, safety, and satisfaction, highlighting its user-friendly design.
Interpretation:

The novel one-handed syringe handle improves safety and control during AC paracentesis, potentially reducing the risk of complications associated with conventional methods.

Limitations:
  • Study conducted on porcine eyes, which may not fully replicate human anatomy and responses, potentially limiting the applicability of results to clinical practice.
  • Small sample size of ten participants may limit generalizability of findings, suggesting the need for larger studies to confirm results.
Conclusion:

The innovative syringe handle design demonstrates promise for enhancing the safety and efficacy of anterior chamber paracentesis, warranting further clinical evaluation, particularly in diverse patient populations.

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