Extracorporeal Circuit
Extracorporeal Circuit - Related Videos
05:21
Laparoscopic Extracorporeal Knot-Tying for Uterine Vessel Occlusion during Hysterectomy with Cervical Cerclage in Large Uteri
0 Views •
2025
Here, we introduce a novel approach-Laparoscopic Extracorporeal Knot-Tying for Uterine Vessel Occlusion during Hysterectomy with Cervical Cerclage in Large Uteri. A laparoscopic extracorporeal knot-pusher is used to perform cervical cerclage, achieving complete occlusion of uterine arteries. Thereafter, the corpus uteri are excised to enhance visibility and facilitate the operative field.
09:27
RC/RL/LC Circuits
0 Views •
2023
Source: Yong P. Chen, PhD, Department of Physics & Astronomy, College of Science, Purdue University, West Lafayette, IN Capacitors (C), inductors (L), and resistors (R) are each an important circuit element with distinct behaviors. A resistor dissipates energy and obeys Ohm's law, with its voltage proportional to its current. A capacitor stores electrical energy, with its current proportional to the rate of change of its voltage, while an inductor stores magnetic energy, with its voltage...
01:17
Second-Order Circuits
0 Views •
2024
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...
09:02
Percutaneous Hepatic Perfusion (PHP) with Melphalan as a Treatment for Unresectable Metastases Confined to the Liver
0 Views •
Cited by 12 •
2016
In this manuscript, we describe percutaneous isolated hepatic perfusion with simultaneous chemofiltration as treatment for unresectable liver metastases. This procedure is performed under general anaesthesia in the angiosuite by an experienced team, consisting of an interventional radiologist, a clinical perfusionist and anaesthesiologist.
03:01
Drosophila Optogenetics: A Method to Manipulate Neuronal Circuits
0 Views •
2023
Optogenetics enables the use of light to manipulate neurons that are genetically engineered to express specific opsins–light-sensitive proteins whose light activation triggers a change in the state of the neuron. Here we describe an optogenetic approach in Drosophila using the opsin Channelrhodopsin2. The example protocol features an optogenetics assay set to study the neuronal circuitry behind the fly's escape behavior.
FAQs
Pump-driven flow determines how blood moves through the circuit, while pressure reflects the forces acting on blood as it passes through connected components. These variables must remain compatible with the circuit’s tubing, filters, oxygenators, and patient connection. Monitoring flow dynamics and pressure helps clinicians recognize device interactions and maintain effective support while reducing risks associated with abnormal circuit performance.
Blood can interact with artificial circuit surfaces, making clot control an essential part of extracorporeal support. Anticoagulation helps limit clot formation as blood travels through sterile tubing and devices. Blood compatibility also matters because the circuit must function without disrupting treatment goals. Together, these considerations support reliable flow through the system and safer return of blood to the patient.
Each component modifies a different aspect of blood treatment. Oxygenators support gas exchange, filters enable filtration, and temperature-control components alter blood temperature before circulation continues. Selective removal of solutes provides another form of circuit-based processing. Combining these functions allows a circuit to be configured for particular physiological needs rather than applying the same treatment to every patient.
Operation requires a sterile circuit containing the appropriate tubing, pump, treatment components, and monitoring equipment. Blood is driven through the circuit, processed through functions such as gas exchange, filtration, temperature control, or solute removal, and then returned to the patient. Throughout the process, clinicians must consider flow, pressure, anticoagulation, blood compatibility, and interactions among connected devices.
Clinical teams use these systems when temporary extracorporeal support can assist or replace cardiac, respiratory, or renal functions. Cardiopulmonary bypass, extracorporeal membrane oxygenation, and hemodialysis represent distinct applications built around different treatment goals. The selected circuit configuration depends on whether care requires gas exchange, filtration, temperature control, selective solute removal, or a combination of these functions.
Monitoring helps clinicians assess how blood moves through the circuit and how connected devices interact during treatment. Flow dynamics and pressure provide information about circuit performance, while the selected components indicate whether gas exchange, filtration, temperature control, or solute removal is occurring as intended. These observations support safer operation and help align extracorporeal treatment with cardiac, respiratory, or renal needs.