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Updated: Jun 5, 2025

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
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Needle Guide Friction Reduction Utilizing Contact Surface Structure.

Isaac Elijah1, Sang-Eun Song2

  • 1Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, USA.

SM Radiology Journal
|December 13, 2024
PubMed
Summary
This summary is machine-generated.

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Optimizing prostate biopsy needle guides can reduce friction, improving sample quality and patient safety. This study found that specific configurations minimize forces, potentially lowering infection risk and repeat procedures.

Area of Science:

  • Urology
  • Biomedical Engineering
  • Medical Device Design

Background:

  • Prostate cancer is a leading cause of male mortality.
  • Template-guided core biopsy is crucial for diagnosis.
  • Biopsy quality is affected by factors like fragmentation and needle dynamics, with suboptimal samples requiring repeat procedures, increasing patient risk.

Purpose of the Study:

  • To investigate alternative needle guide configurations for prostate biopsy.
  • To reduce frictional forces between the needle and guide.
  • To maintain adequate guidance for accurate targeting.

Main Methods:

  • Simulations using SIMULA Abaqus software.
  • Finite Element Analysis (FEA) to model needle-guide interaction.
  • Evaluation of various needle guide configurations.
Keywords:
Core biopsyInsertion frictionNeedle guideProstate biopsy

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Main Results:

  • Configurations with parallel contact points showed minimal friction.
  • Reduced contact surface area between needle and guide correlated with lower friction.
  • Optimized designs demonstrated reduced frictional forces compared to the control.

Conclusions:

  • Needle guide design significantly impacts friction during prostate biopsy.
  • Optimizing needle guide configuration can decrease friction and improve biopsy specimen quality.
  • Reduced friction may lead to fewer repeat biopsies and lower infection risk.