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Related Experiment Videos

Needle holder damage to surgical needles.

M R Abidin1, J G Thacker, S A Lombardi

  • 1Department of Plastic Surgery, University of Virginia School of Medicine, Charlottesville 22908.

The American Surgeon
|November 1, 1989
PubMed
Summary

Surgical needles clamped with toothed needle holders break easily. However, smooth or tungsten carbide-jawed holders do not weaken surgical needles, preserving their ductility for safer procedures.

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Area of Science:

  • Surgical Instrumentation
  • Materials Science in Medicine
  • Biomedical Engineering

Background:

  • Needle holders are essential surgical tools.
  • Improper clamping can compromise needle integrity.
  • Understanding material interactions is crucial for surgical safety.

Purpose of the Study:

  • To evaluate the impact of different needle holder jaw designs on surgical needle strength.
  • To determine if needle clamping affects needle ductility and fracture risk.

Main Methods:

  • Surgical needles were clamped using needle holders with toothed jaws.
  • Needles were also clamped using holders with smooth jaws.
  • Needles were clamped using holders with tungsten carbide-embedded jaws.
  • Needle ductility was assessed after clamping in all conditions.

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Main Results:

  • Clamping needles with toothed needle holders significantly weakened the needles.
  • Needles clamped with toothed holders showed increased susceptibility to breakage.
  • Clamping with smooth or tungsten carbide-jawed holders did not affect needle ductility.

Conclusions:

  • Toothed needle holders pose a risk of surgical needle weakening and breakage.
  • Smooth or tungsten carbide-jawed needle holders are preferable for maintaining needle integrity.
  • Choosing appropriate needle holders can enhance surgical safety and instrument longevity.