ワスプにインスパイアされた自己駆動針の操縦戦略
Jette Bloemberg1, David Justin Jager2, Paul Breedveld3
1Bio-Inspired Technology (BITE) Group, Department of BioMechanical Engineering, Faculty of Mechanical Engineering, Delft University of Technology, Delft, The Netherlands. j.bloemberg@tudelft.nl.
Scientific reports
|August 23, 2025
まとめ
この研究では 寄生虫のヒゲに触発された 自動運転の針を導入しました バイオインスピレーションによる針のデザインは 医学的介入の精度を高め 屈折を防ぎ 全方向の方向性を可能にします
科学分野:
- バイオミメティクスと医療機器工学
背景:
- 細い針を固体基板に挿入することは,曲げたり折りたたみたりするので困難です.
- 寄生虫は 精密な針の挿入のための 自然なメカニズムを利用し 工学的な解決策の バイオインスピレーションを提供します
研究 の 目的:
- 介入の精度を高めるため,ホスプにインスパイアされたメカニズムを組み込んだ,自己駆動可能な針を開発する.
- バイオインスパイアされた針の設計の推進効率とステアリング性能を評価する.
主な方法:
- プレテンションと非対称性を利用して,制御可能な中央セグメントを持つ多セグメント針 (0.89 mm 外径) を設計した.
- 針のオムニディレクショナル・ステアリングの能力は,プレベンツの中央セグメントの取り戻しと回転によって達成されました.
- 性能は組織を模倣する幻で評価され,推進効率とステアリング能力を測定した.
主要な成果:
- 針の推進効率は前方運動で63%±4%,方向運動で55%±7%であった.
- 傾きと挿入の平均比率は0.41 ±0.11で,曲線半径が44mmに相当する.
- 設計は,薄い針の挿入に固有の歪み問題を効果的に軽減しました.
結論:
- バイオインスピレーションによる針の設計は 制御可能な針の技術における 重要な進歩です
- この研究は精密な針の位置と方向性を要求する 皮膚経由の介入の改善への道を開きます
関連する概念動画
Motor Units
53.8K
A motor unit consists of two main components: a single efferent motor neuron (i.e., a neuron that carries impulses away from the central nervous system) and all of the muscle fibers it innervates. The motor neuron may innervate multiple muscle fibers, which are single cells, but only one motor neuron innervates a single muscle fiber.
53.8K
Internal Combustion Engine
3.3K
The internal combustion engine is a heat engine that uses the byproducts of combustion as the working fluid instead of using a heat transfer medium to transfer heat. The combustion is done in a way that produces high-pressure combustion products that can be expanded through a turbine or piston to create work. Internal combustion engines can again be categorized into three kinds: (1) spark ignition gasoline engines, most commonly used in automobiles, (2) compression ignition diesel engines that...
3.3K
Motor Units
14.2K
The motor unit is a fundamental component of the neuromuscular system and plays a crucial role in coordinating muscle contractions. It consists of a somatic motor neuron, which connects and controls multiple skeletal muscle fibers, forming a single functional segment. The axon of the motor neuron branches out and establishes synaptic connections known as neuromuscular junctions with individual muscle fibers within the motor unit.
Motor units come in different sizes, with smaller units...
Motor units come in different sizes, with smaller units...
14.2K
Motor Unit Stimulation
4.7K
When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
4.7K
PI Controller: Design
1.6K
Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
1.6K
Turbine-Governor Control
1.3K
Turbine-governor control is crucial for maintaining power system stability by balancing turbine mechanical power output with electrical load demand. This mechanism ensures that generator frequency and rotor speed are within acceptable limits during load variations. Turbine-generator units store kinetic energy due to their rotating masses; this energy is released to meet the load requirement when the load increases. The electrical torque of turbines rises to meet the demand, whereas the...
1.3K


