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气力输送技术的应用及发展浅析 被引量:3
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作者 高杰 刘志超 李忱 《沈阳工程学院学报(自然科学版)》 2022年第2期54-57,71,共5页
通过对气力输送系统在国内外的发展过程的研究,对当前正压浓相式气力输送技术进行分类,对各类气力输送技术原理进行详细地分析与对比,阐述了各类技术存在的优缺点;同时,研究了我国在气力物料输送方面采用的主流技术,在实际应用过程中存... 通过对气力输送系统在国内外的发展过程的研究,对当前正压浓相式气力输送技术进行分类,对各类气力输送技术原理进行详细地分析与对比,阐述了各类技术存在的优缺点;同时,研究了我国在气力物料输送方面采用的主流技术,在实际应用过程中存在的问题以及改善措施。在此基础上,研发了先导式物料输送技术,该技术具有灰气比高、输送流速低、可节约压缩空气的损耗、输送距离远和物料适应性广等特点,在国内气力物料输送领域可以广泛应用。 展开更多
关键词 气力输送 浓相 静压栓塞 输送压力 输送距离
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A large congenital and solitary intrahepatic arterioportal fistula in an old woman 被引量:7
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作者 Zhen-Ya Lu Jian-Yang Ao +2 位作者 Tian-An Jiang Zhi-Yi Peng Zhan-Kun Wang 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第13期1656-1659,共4页
Arterioportal fistula(APF)is a rare cause of portal hypertension and may lead to death.APF can be congenital,post-traumatic,iatrogenic(transhepatic intervention or biopsy)or related to ruptured hepatic artery aneurysm... Arterioportal fistula(APF)is a rare cause of portal hypertension and may lead to death.APF can be congenital,post-traumatic,iatrogenic(transhepatic intervention or biopsy)or related to ruptured hepatic artery aneurysms.Congenital APF is a rare condition even in children.In this case report,we describe a 73-year-old woman diagnosed as APF by ultrasonography,computed tomography,and hepatic artery selective arteriography.The fistula was embolized twice but failed,and she still suffered from alimentary tract hemorrhage.Then,selective arteriography of the hepatic artery was performed again and venae coronaria ventriculi and short gastric vein were embolized.During the 2-year follow-up,the patient remained asymptomatic.We therefore argue that embolization of venae coronaria ventriculi and short gastric vein may be an effective treatment modality for intrahepatic APF with severe upper gastrointestinal bleeding. 展开更多
关键词 Congenital intrahepatic arterioportal fistula Liver EMBOLIZATION Portal hypertension ANGIOGRAPHY
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Transhepatic catheter-directed thrombolysis for portal vein thrombosis after partial splenic embolization in combination with balloon-occluded retrograde transvenous obliteration of splenorenal shunt 被引量:8
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作者 Motoki Nakai Morio Sato +5 位作者 Shinya Sahara Nobuyuki Kawai Masashi Kimura Yoshimasa Maeda Yumiko Ibata Katsuhiko Higashi 《World Journal of Gastroenterology》 SCIE CAS CSCD 2006年第31期5071-5074,共4页
A 66-year-old woman underwent partial splenic embolization (PSE) for hypersplenisrn with idiopathic portal hypertension (IPH). One week later, contrast-enhanced CT revealed extensive portal vein thrombosis (PVT)... A 66-year-old woman underwent partial splenic embolization (PSE) for hypersplenisrn with idiopathic portal hypertension (IPH). One week later, contrast-enhanced CT revealed extensive portal vein thrombosis (PVT) and dilated portosystemic shunts. The PVT was not dissolved by the intravenous administration of urokinase. The right portal vein was canulated via the percutaneous transhepatic route under ultrasonic guidance and a 4 Fr. straight catheter was advanced into the portal vein through the thrombus. Transhepatic catheter-directed thrombolysis was performed to dissolve the PVT and a splenorenal shunt was concurrently occluded to increase portal blood flow, using balloon-occluded retrograde transvenous obliteration (BRTO) technique. Subsequent contrast-enhanced CT showed good patency of the portal vein and thrombosed splenorenal shunt. Transhepatic catheter-directed thrombolysis combined with BRTO is feasible and effective for PVT with portosystemic shunts. 展开更多
关键词 Portal vein thrombosis Idiopathic portal hypertension Partial splenic embolization Portosystemic shunts Transhepatic catheter-directed thrombolysis Balloon-occluded retrograde transvenous obliteration
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Clinical characteristics of idiopathic portal hypertension 被引量:6
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作者 Ozgur Harmanci Yusuf Bayraktar 《World Journal of Gastroenterology》 SCIE CAS CSCD 2007年第13期1906-1911,共6页
Idiopathic portal hypertension is one of the interesting causes of portal hypertension. Even in very developed medical centers, this disorder is still one of the most important misdiagnoses of clinical practice. To in... Idiopathic portal hypertension is one of the interesting causes of portal hypertension. Even in very developed medical centers, this disorder is still one of the most important misdiagnoses of clinical practice. To inexperienced physicians, presenting esophageal varices and upper gastrointestinal bleeding usually prompt an unfortunate diagnosis of cirrhosis. A heterogenous clinical presentation and progression of this disorder should be recognized by physicians, and management should be directed towards some specific problems confined to this disorder. Although a genetic basis and other factors are implicated in its pathogenesis, exact underlying mechanism(s) is (are) unknown. In this review, we discuss the heterogeneity of idiopathic portal hypertension, its etiopathogenesis, clinical presentation and management issues. With the expectation of an excellent prognosis, a practicing gastroenterologist should be aware that "not all varices mean cirrhosis". 展开更多
关键词 Idiopathic portal hypertension Non-cirrhoticportal fibrosis Hepatoportal sclerosis Portal veinthrombosis
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