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Needle-tissue interaction forces--a survey of experimental data.

Dennis J van Gerwen¹, Jenny Dankelman, John J van den Dobbelsteen

¹Delft University of Technology, Department of Biomechanical Engineering, Delft, The Netherlands. d.j.vangerwen@tudelft.nl

Medical Engineering & Physics

|May 25, 2012

Summary

Understanding needle-tissue mechanics is crucial for clinical tools. This study reviewed 99 papers, finding higher insertion speeds decrease puncture force but increase friction, while larger needle diameters increase peak forces.

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Area of Science:

Biomechanics
Medical Device Engineering
Robotics

Background:

Needle-tissue interaction mechanics are vital for developing clinical tools like simulators and robots.
Factors such as needle type, insertion speed, and tissue properties influence interaction forces.
The precise impact of these factors on needle insertion force remains unclear.

Purpose of the Study:

To investigate the influence of various factors on needle insertion force.
To compile and analyze existing experimental data on needle insertion forces from scientific literature.

Main Methods:

Systematic literature search for experimental data on needle insertion forces.
Data extraction and grouping based on influencing factors (e.g., needle type, speed, diameter).
Analysis of 99 relevant research papers containing force data.

Main Results:

Typical peak insertion forces range from 1-10 Newtons.
Higher insertion velocity generally reduces puncture force but increases friction.
Increased needle diameter correlates with higher peak insertion forces.
Conical needles tend to generate higher peak forces compared to beveled needles.

Conclusions:

Needle insertion force is significantly affected by needle geometry and insertion parameters.
Further research is needed to elucidate the complex influence of tissue characteristics on needle insertion mechanics.