1.Design and application of an insulation device for extracorporeal membrane oxygenation transfer pipeline.
Wenchun WANG ; Xiaoqing LI ; Shuyuan QIAN ; Lu MA ; Meng DENG ; Yun YU
Chinese Critical Care Medicine 2025;37(9):875-877
Extracorporeal membrane oxygenation (ECMO) is a key continuous extracorporeal life support technology that can partially or completely replace a patient's cardiopulmonary function, thereby winning valuable time for the diagnosis and treatment of the primary disease. With the widespread application of ECMO, the need for transport has increased. However, during transfers, the standard heater unit is often large and inconvenient to carry, while alternative warming measures tend to be ineffective. This frequently leads to complications such as hypothermia or the inability to maintain body temperature, which can seriously affect the patient's prognosis. In response to this challenge, the medical and nursing staff of the critical care medicine department at Zhongda Hospital Affiliated to Southeast University jointly designed an insulation device for ECMO transport pipelines. The device was successfully granted a National Utility Model Patent of China (patent number: ZL 2021 2 0653569.3). It primarily consists of key components such as a heating pad, velcro straps, a cover layer, a backing layer, an electric heating layer, and a wiring plug. Its advantages include portability, the ability to effectively wrap around and warm the ECMO circuit during transit, and a reduction in the incidence of hypothermia-related complications. Furthermore, its transparent material design allows for real-time monitoring of the ECMO system's status, making it both economical and practical.
Extracorporeal Membrane Oxygenation/instrumentation*
;
Humans
;
Equipment Design
2.Design and application of a pressure control device for the continuous renal replacement therapy integrated in-series with extracorporeal membrane oxygenation.
Lianqing PU ; Xuezhu LI ; Lu MA ; Guanjie CHEN ; Xiaoqing LI ; Hui CHEN
Chinese Critical Care Medicine 2025;37(8):768-770
Patients requiring extracorporeal membrane oxygenation (ECMO) often need concurrent continuous renal replacement therapy (CRRT). At present, there are various connection methods between ECMO and CRRT circuits, among which in-series integration is the most common. However, ECMO blood flow and catheter type, pressure changes at the pre-pump, post-pump pre-oxygenator, and post-oxygenator segments frequently result in circuit pressures that exceed the alarm threshold of the device. Excessive negative or positive pressures may compromise blood withdrawal and return within the CRRT circuit, leading to frequent system alarms, interruptions in therapy, filter occlusion, and an increased risk of thrombus formation. To address this issue, the critical care nursing team of Zhongda Hospital Affiliated to Southeast University, developed a novel pressure-regulating clamp for CRRT vascular access in ECMO patient, which has been granted a National Utility Model Patent of China (patent number: ZL 2021 2 1496610.7). The device comprises opposing left and right clamp arms joined at the top by a flexible plastic bridge, with dual internal compression surfaces designed to fit CRRT tubing of various calibers. A locking mechanism and serrated strip at the base enable precise adjustment of the compression distance, thereby modulating the tubing's cross-sectional area. This configuration allows real-time regulation of blood flow and stabilization of pressures at blood withdrawal and return sites within the CRRT circuit. By reducing pressure-related alarms and extending filter life, the device may enhance the safety and efficiency of CRRT delivery during ECMO. It is user-friendly, cost-effective, and well-suited for broad clinical implementation, with the potential to alleviate the overall treatment burden on patients and their families.
Extracorporeal Membrane Oxygenation/instrumentation*
;
Humans
;
Continuous Renal Replacement Therapy/instrumentation*
;
Equipment Design
;
Pressure
3.Multislice CT Scans in Patients on Extracorporeal Membrane Oxygenation: Emphasis on Hemodynamic Changes and Imaging Pitfalls.
Kao Lang LIU ; Yu Feng WANG ; Yeun Chung CHANG ; Shu Chien HUANG ; Shyh Jye CHEN ; Yuk Ming TSANG ; Chin Chen CHANG
Korean Journal of Radiology 2014;15(3):322-329
This pictorial review provides the principles of extracorporeal membrane oxygenation (ECMO) support and associated CT imaging features with emphasis on the hemodynamic changes and possible imaging pitfalls encountered. It is important that radiologists in ECMO centers apply well-designed imaging protocols and familiarize themselves with post-contrast CT imaging findings in patients on ECMO.
Adult
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Aorta, Thoracic/physiopathology/radiography
;
Contrast Media/administration & dosage/pharmacokinetics
;
Extracorporeal Membrane Oxygenation/classification/*methods
;
Female
;
Heart-Assist Devices
;
Hemodynamics/*physiology
;
Humans
;
Intra-Aortic Balloon Pumping/instrumentation
;
Male
;
Middle Aged
;
*Multidetector Computed Tomography
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Regional Blood Flow/physiology
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Retrospective Studies
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Ventricular Dysfunction, Left/physiopathology/radiography
4.Current state and development of artificial lungs.
Zaoxian MEI ; Xin SUN ; Qi WU
Journal of Biomedical Engineering 2010;27(6):1410-1414
The artificial lung is a technical device for providing life support; it will be put in use when the natural lungs are failing and are not able to maintain sufficient oxygenation of the body's organ systems. From the viewpoint of long-term development, the artificial lung should be permanently implanted in the body, so that it will substitute for the human pulmonary function partially or completely. In this paper, four artificial lung technologies were expounded with reference to the development and research process of artificial lung. They were extracorporeal membrane oxygenation, intravascular artificial lung, implantable artificial lung, and pumpless extracorporeal lung assist. In this paper were described the structure of the four kinds of artificial lung, the working principle, and their advantages, disadvantages and indications. The prospect of artificial lung was evaluated in the light of the data from the existing animal experiments and from the clinical experience of the centers.
Animals
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Artificial Organs
;
trends
;
Extracorporeal Membrane Oxygenation
;
instrumentation
;
trends
;
Humans
;
Lung
;
Oxygenators, Membrane
;
trends
5.Advanced development of blood-gas exchanger.
Xin SUN ; Wenliang ZHANG ; Qi WU ; Zhongzhen DU
Journal of Biomedical Engineering 2008;25(6):1364-1367
In order to simplify the technique of extracorporeal membrane oxygenation (ECMO) and apply extracorporeal life support ( ECLS) broadly for assisting the treatment of severe respiratory failure patients, we have developed a blood-gas exchanger (BGE) with the characteristics of small volume and simple structure. The exchange between blood and gas of BGE adopts cross-flowing model; blood flows along the outer hollow fiber and gas flows in the inner hollow fiber with the reverse direction of blood flowing. The interface of blood flow in and out was designed as the internal spiral, and the caliber of BGE is matched with the blood interface of dialysis. Thus it may successfully make single-use spiral connectors link up mutually in the extracorporeal blood circulation of dialysis, may help clinical operations become safe, convenient and easily-controlled, and may simplify the technique of EGMO.
Carbon Dioxide
;
blood
;
Equipment Design
;
Extracorporeal Membrane Oxygenation
;
instrumentation
;
Humans
;
Life Support Care
;
instrumentation
;
Oxygen
;
blood
6.The development of research on membrane oxgenator application.
Lihong WANG ; Huanlin CHEN ; Kecheng WANG
Journal of Biomedical Engineering 2007;24(1):240-244
Extra-luminal flow hollow fiber membrane oxygenator (ELFHFMO) has been widely applied in cardiopulmonary bypass (CPB) and extracorporeal membrane oxygenation (ECMO) or extracorporeal life support (ECLS) because of its advantages over other types of MO. But its low hemocompatibility and durability are the major problems in clinical application that even have limited its wide application. In this paper, we reviewed the recent researches on how to improve the hemocompatibility and durability of ELFHFMO.
Coated Materials, Biocompatible
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Extracorporeal Membrane Oxygenation
;
instrumentation
;
Heparin
;
administration & dosage
;
Humans
;
Oxygenators, Membrane
;
trends

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