Experimental study of mosquito-inspired needle to minimize insertion force and tissue deformation

Abstract

The aim of this work is to propose a mosquito-inspired (bioinspired) design of a surgical needle that can decrease the insertion force and the tissue deformation, which are the main causes of target inaccuracy during percutaneous procedures. The bioinspired needle was developed by mimicking the geometrical shapes of mosquito proboscis. Needle prototypes were manufactured and tested to determine optimized needle shapes and geometries. Needle insertion tests on a tissue-mimicking polyvinylchloride (PVC) gel were then performed to emulate the mosquito-proboscis stinging dynamics by applying vibration and insertion velocity during the insertion. An insertion test setup equipped with a sensing system was constructed to measure the insertion force and to assess the deformation of the tissue. It was discovered that using the proposed bioinspired design, the needle insertion force was decreased by 60% and the tissue deformation was reduced by 48%. This finding is significant for improving needle-based medical procedures.

Experimental and analytical study on insertion force of composite-coated needle in soft tissue material

“…7 To emulate the viscoelastic properties of biological tissue, a PVC gel tissue was fabricated by mixing a plastic PVC hardener and softener with a ratio of 2:1, heating the mixture to 150°C, allowing it to solidify, and refrigerating it for 24 h. This gel had a stiffness of 10–20 kPa. 29,30…”

“…7 To emulate the viscoelastic properties of biological tissue, a PVC gel tissue was fabricated by mixing a plastic PVC hardener and softener with a ratio of 2:1, heating the mixture to 150°C, allowing it to solidify, and refrigerating it for 24 h. This gel had a stiffness of 10-20 kPa. 29,30 The Coulomb friction, viscous, and elastic forces were quantified through a sinusoidal needle insertionextraction experiment utilizing the LSQR method. A specialized experimental setup consisting of a linear actuator, force sensor, needle holder, and tissue holder was employed to eliminate the influence of cutting forces, as depicted in Figures 2 and 3.…”

An experimental study on the mechanics and control of SMA-actuated bioinspired needle

“…Patel et al [18] used a method of composite coating on the needle shaft that functioned as a dry lubricant to reduce the friction force. Other researchers have studied the needle designs and insertion mechanisms inspired by the insect parts such as honeybee stinger [19,20], mosquito proboscis [21][22][23][24], and wasp ovipositor [25]. Gidde et al [24] studied the effect of vibration and bioinspired design in the needles in reducing the insertion force and found a 50% reduction in polyvinyl chloride (PVC) gel and a 43% reduction in chicken breast.…”

“…Gidde et al [24] studied the effect of vibration and bioinspired design in the needles in reducing the insertion force and found a 50% reduction in polyvinyl chloride (PVC) gel and a 43% reduction in chicken breast. Experiments with mosquito-inspired design and vibrational insertion of passive needle prototype into PVC gel resulted in a 60% reduction in insertion force [23], a 48% reduction in tissue deformation [23], and a 27% reduction in tissue damage [9]. While the bioinspired features (needle surface geometry and vibrational insertion method) have been explored in passive needles for reduced friction, the potential benefits in active needles have not been studied.…”

“…The outer surface of the cannula accommodated a maxilla structure-a jagged structure found in mosquito proboscis [26]. Gidde et al [23] scaled up the maxilla structure of mosquito proboscis for a 3 mm diameter 3D printed needle prototype. In this study, we used the scaled-up dimension of the maxilla structure applied by [23] into the cannula of the SMA-actuated needle.…”