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関連する概念動画

First-Order Circuits01:15

First-Order Circuits

3.2K
First-order electrical circuits, which comprise resistors and a single energy storage element - either a capacitor or an inductor, are fundamental to many electronic systems. These circuits are governed by a first-order differential equation that describes the relationship between input and output signals.
One common example of a first-order circuit is the RC (resistor-capacitor) circuit. These circuits are used in relaxation oscillators such as neon lamp oscillator circuits. When voltage is...
3.2K
Three-Phase Circuits01:22

Three-Phase Circuits

755
AC power distribution systems have three categories: single-phase, two-phase, and three-phase systems. The single-phase circuit, common in residential settings, typically employs a two-wire system connecting a single AC source to various loads. These circuits support standard household appliances operating at 120 volts (V) and 240 V, such as lamps, televisions, and microwaves. The first generators, Niagara Falls hydro plant installed in 1895, were two-phase and designed by Nikola Tesla. The...
755
Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

1.4K
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
1.4K
Node Analysis for AC Circuits01:14

Node Analysis for AC Circuits

612
Consider an angioplasty system featuring a catheter equipped with a turbine, a critical tool for removing plaque deposits from coronary arteries. This intricate medical device operates using a circuit model reminiscent of a dual-node RLC circuit powered by a current-controlled voltage source.
To unravel the complexities of this system, nodal analysis is employed, a powerful technique founded on Kirchhoff's current law (KCL), which remains valid for phasors. AC circuits can effectively be...
612
Second-Order Circuits01:17

Second-Order Circuits

3.2K
Integrating two fundamental energy storage elements in electrical circuits results in second-order circuits, encompassing RLC circuits and circuits with dual capacitors or inductors (RC and RL circuits). Second-order circuits are identified by second-order differential equations that link input and output signals.
Input signals typically originate from voltage or current sources, with the output often representing voltage across the capacitor and/or current through the inductor. For example, in...
3.2K
Power System Three-Phase Short Circuits01:21

Power System Three-Phase Short Circuits

497
Determining the subtransient fault current in a power system involves representing transformers by their leakage reactances, transmission lines by their equivalent series reactances, and synchronous machines as constant voltage sources behind their subtransient reactances. In this analysis, certain elements are excluded, such as winding resistances, series resistances, shunt admittances, delta-Y phase shifts, armature resistance, saturation, saliency, non-rotating impedance loads, and small...
497

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Updated: Jan 8, 2026

Introduction to Solid Supported Membrane Based Electrophysiology
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Introduction to Solid Supported Membrane Based Electrophysiology

Published on: May 11, 2013

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ECMOからCPBへ：単一回路アプローチ

Jeffrey Zalfa1, Daniel Duncan1, Paul Kerins1

  • 1Nemours Children's Hospital, 1600 Rockland Road, Wilmington, DE, 19803, USA.

The journal of extra-corporeal technology
|December 17, 2025
PubMed
まとめ

本研究は、単一回路を用いて小児心臓手術患者の体外式心肺補助（VA-ECMO）から体外循環（CPB）への効果的な変換を行う技術を実証するものであり、複雑な手技中のサポートを簡略化します。

科学分野:

  • 小児心臓手術
  • 心肺サポート
  • 体外生命維持

背景:

  • 小児心臓手術において、体外式心肺補助（VA-ECMO）と体外循環（CPB）は心肺サポートに不可欠です。
  • CPBとECMO回路の同時使用が同じ手術期間中に発生することがあります。
  • この手技に関する論文では、変更されたECMO回路を用いたVA-ECMOからCPBへの変換について詳述しています。

主な方法:

  • 本研究では、既存のECMO回路に心切開レザバーを組み込むことにより、患者をVA-ECMOからCPBへ変換しました。
  • この手技は、外科的介入を必要とする一連の小児患者に適用されました。
  • 心肺サポートのシームレスな移行に焦点を当てました。

結論:

  • 同じ回路を利用したVA-ECMOからCPBへの変換は、効果的な戦略です。
  • この手技は、VA-ECMO中に外科的介入を必要とする先天性心疾患患者にとって特に有益です。
  • この方法は、複雑な小児心臓手術における心肺サポート管理に合理化されたアプローチを提供します。
キーワード:
体外循環先天性心疾患体外式心肺補助小児心臓手術灌流

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Modeling Biological Membranes with Circuit Boards and Measuring Electrical Signals in Axons: Student Laboratory Exercises
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Real-time Electrophysiology: Using Closed-loop Protocols to Probe Neuronal Dynamics and Beyond
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Modeling Biological Membranes with Circuit Boards and Measuring Electrical Signals in Axons: Student Laboratory Exercises
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