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Experimental study on needle insertion force to minimize tissue deformation in tongue tissue
Y Aaboubout1, M R Nunes Soares2, E M Barroso3
1Department of Pathology, Erasmus MC, University Medical Center Rotterdam, Wytemaweg 80 CN, Rotterdam 3015, the Netherlands; Department of Otorhinolaryngology and Head and Neck Surgery, Erasmus MC, University Medical Center Rotterdam, the Netherlands.
Medical Engineering & Physics
|November 10, 2021
Summary
Needle insertion force and tissue deformation depend on insertion speed and tip design, not outer diameter for small needles. Repeated insertions did not significantly alter insertion force.
Area of Science:
- Biomechanics
- Medical Device Engineering
- Materials Science
Background:
- Understanding needle-tissue interaction is crucial for medical procedures.
- Optimizing needle design can improve patient outcomes and reduce discomfort.
Purpose of the Study:
- To investigate the impact of insertion velocity, needle tip geometry, and diameter on tissue deformation and insertion force.
- To evaluate the effect of repeated needle insertions on maximum insertion force.
Main Methods:
- Experimental analysis of needle insertion into tissue simulants.
- Varying insertion velocities, needle tip geometries, and diameters (30G-32G).
- Conducting endurance tests for up to 100 insertions.
Main Results:
- Tissue deformation and maximum insertion force are significantly influenced by insertion velocity and needle tip geometry.
- No correlation observed between outer diameter and maximum insertion force for small-gauge needles.
- Endurance tests revealed no significant increase in maximum insertion force after 100 insertions.
Conclusions:
- Insertion velocity and tip geometry are key factors in controlling needle insertion forces and tissue response.
- Small-gauge needle diameter does not significantly affect insertion force.
- Needle performance remains consistent over multiple insertions, indicating durability.
