检索结果-南通市图书馆

Laser induced clot formation in blood treated by EDTA

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Natural Science 2013年第7期5卷 796-799页

作者： Balsam M. Mirdan Department of Physics College of Education for Pure Science University of Kirkuk Kirkuk Iraq

Patients under systemic (ethylenediaminetetraacetic acid) EDTA are at risk of hemorrhage for any accidental trauma even the superficial ones. This research is a trial to use 980 nm wavelength laser light to provide coagulation for such patients in a local region without collateral thermal damage. Material and Method: 980 nm Diode laser operating in a continuous mode (CW) was incident on human blood treated with EDTA inDurhamtubes. The used parameters were (2.25, 3, 3.75 and 6.75) W output power for variable exposure times (1, 3, 9 and 27) s. Results: A homogenous clot was performed at 4327.84 J/cm2 deposited energy density with the absence of any thermal stress in the blood. Conclusion: 980 nm laser wavelength provides a local photochemical bond break of the anticoagulant enhancing blood coagulation for medically compromised patients.

关键词： 980 nm Laser Blood clot Laser Tissue Interaction Photochemical Interaction

Investigation on hydrodynamic lubrication of bearings in a left ventricular assisted device

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Friction 2020年第4期8卷 746-754页

作者： Xiaobing ZHENG Yongjian LI Haosheng CHEN Shengshou HU Jianye ZHOU State Key Laboratory of Cardiovascular Disease Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100037China State Key Laboratory of Tribology Tsinghua UniversityBeijing 100084China

Formations of clots were found inside the hydrodynamic bearings of the left ventricular assisted devices (LVADs) and caused tremendous risks to the long-term use of these devices. For the hydrodynamic bearings used in the LVAD, not only the lubrication status but also the motion of the blood cells in the bearing will take great effect on the performance of the device. Based on the analysis of the hydrodynamic pressures distribution and the flowing trajectory of red blood cells in the lubrication film, the bearing is designed in a region where enough hydrodynamic pressure is generated to float the rotor to reduce the wear, and the entrainment of red blood cells in the gap of the bearing can be prevented to avoid the formation of clots.

关键词： hydrodynamic lubrication journal bearing left ventricular assisted device clot

Combined urethral and suprapubic catheter drainage improves post operative management after open simple prostatectomy without bladder irrigation

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Urology 2017年第2期6卷 44-50页

作者： Anselm Okwudili Obi Department of Surgery Federal Teaching Hospital Department of Surgery Ebonyi State University

AIM To compare outcomes after open simple prostatectomy without bladder irrigation, in subjects drained by combined 2-way urethral catheter and suprapubic catheter(SPC) vs those drained by 2-way urethral catheter *** A total of 84 participants undergoing Freyer's simple prostatectomy over an 18-mo period were randomized into 2 groups(n=42). Subjects in group 1 were managed with 2-way urethral catheter and in situ 2-way SPC while subjects in group 2 had a 2-way urethral catheter drainage only. In group 1 subjects, the SPC was spigotted and only used for drainage if there was clot retention. The primary outcomes were number of clot retention episodes, and number of clot retention episodes requiring bladder syringe evacuation. Other secondary outcomes evaluated were blood loss, requirement of extra analgesics, duration of surgery, hospital stay and presence or absence of post-op complications. RESULTS The mean age in the groups was 65.7(± 7.6) in group 1 vs 64.8(±6.8) in group *** groups were similar with respect to age, prostate specific antigen, prostate volume, blood loss, duration of surgery, blood transfusion and overall complication rate. However statistically significant differences were observed in clot retention episodes between group 1 and 2:0.8(±1.5)vs3.5(±4.4), Pclot retention episodes requiring evacuation with bladder syringe 0.4(± 0.9) vs 2.6(± 3.8), P = 0.001, requirement of extra analgesics 0.4(±0.5)vs4.0(±1.5), Pclot retention episodes and reduced requirement of extra analgesics but slightly longer hospital stay.

关键词： Open suprapubic prostatectomy Catheter drainage clot retention Post operative outcome Benign prostatic hyperplasia

A Qualitative Morphological Comparison of Two Haemostatic Agents in a Porcine Liver Trauma Model

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Surgical Science 2013年第8期4卷 359-364页

作者： Kenneth E. Coenye Claire Bourgain Claudia Keibl Sylvia Nürnberger Martijn van Griensven Department for Pathological Anatomy Free University Brussels (VUB) Brussels Belgium Departments for Surgery and Emergency Medicine AZ Jan Portaels Vilvoorde Belgium Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the Research Centre of the AUVA Vienna Austria

Background: Many surgical haemostatic agents are available which aim to reduce morbidity and mortality of bleeding, as well as associated costs. We used qualitative techniques to compare the effectiveness of two topical gelatine-based haemostatic agents in a porcine liver trauma model. Methods: We compared the activity of Floseal? (with human or bovine thrombin), Surgiflo? and Surgiflo? plus 5000 IU bovine thrombin per 10 mL of product (n = 6 test sites/group). Different clinical scenarios were evaluated in two anaesthetised piglets;normal physiological conditions (normotension and normothermia), and a status of hypotension, hypothermia and haemodilution, requiring inotropic support. Laparotomy was performed, and five identical stab wounds were made on each liver lobe. Four of these wounds were randomly treated with one of the agents under investigation, while one wound was kept as an untreated control. Haemostasis was observed during and immediately following surgery. After euthanisation, wounds were examined (blinded for treatment) macroscopically, microscopically and using scanning electron microscopic evaluation. Results: Surgiflo? produced some degree of clotting in 1/3 applications in both piglets. Co-treatment with thrombin resulted in a minor improvement in performance in the animal with normal physiological conditions (some degree of clotting in all wounds);no improvement was seen in the animal in a status of hypotension, hypothermia and haemodilution. Floseal? induced clotting in all wounds for both piglets. Microscopic and scanning electron microscope examination of the stab wounds demonstrated that Floseal? created a stable, dense agglomerate of gelatine and fibrin, which firmly adhered to the adjacent liver tissue. In wounds treated with Surgiflo? or Surgiflo? plus thrombin, the gelatine contained more air bubbles, resulting in less fibrin inclusion in the clot and weaker adhesion of the clot to the liver tissue. Conclusion: Floseal? created a dense and

关键词： Haemostasis Coagulation Thrombin Fibrin Gelatine Sealant clot Surgery Trauma Wound Healing

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

“穿”字种种表达法

中学英语园地（高二版） 2006年第6期 35-37页

作者：董英

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

古诗英译欣赏:游子吟

英语沙龙（初级版） 2005年第10期 28-28页

作者：孟郊 W.J.B.Fletcher 文欣

诗歌是语言的艺术,文化积淀的结晶。它让情感得到喷发,使生命焕发光辉;好的诗歌带来一种超脱和宁静,牵引我们在迷茫中重返纯真年代。中国有那么多脍炙人口的古诗,从小我们就受到它们那特有的灵性和优美意境的熏陶,如果把它们用同样优美... 详细信息

诗歌是语言的艺术,文化积淀的结晶。它让情感得到喷发,使生命焕发光辉;好的诗歌带来一种超脱和宁静,牵引我们在迷茫中重返纯真年代。中国有那么多脍炙人口的古诗,从小我们就受到它们那特有的灵性和优美意境的熏陶,如果把它们用同样优美的英语表达出来,读来是什么感觉呢?为此,本科精选一些大家熟知的简短中国古诗英译版佳作以飨读者。

关键词：古诗英译游子吟中国古诗英译版英语表达纯真年代优美意境 mother 谁言寸草心 clot