下导管

Using wave method to research the hydraulic resonance system of pipe- air chamber .

采用波动法对导管-气室水力共振系统进行了研究，表明水力共振系统在合适的系统结构参数和流体参数情况下，可以使导管出口处的压力高于入口处的压力。

Methods Using Seldinger technique method,guide Magic-BD micro-catheter with Balt detachedable rubber ball to the fistulas level,when verified the ball inside the fistula of carotid-cavernous sinus but outside the carotid artery,filled the ball fully enough with iodine material until the abnormal noise disappear and release the ball remained the internal carotid artery patent.

采用Seldinger法插入导管鞘后，用带Balt可脱球囊的magic-BD导管透视下经导引管送达瘘口水平，当球囊突然"低头"或改变方向时，表示球囊已通过瘘口，进入海绵窦。以等渗造影剂交换气体后充盈球囊至杂音消失，造影证实瘘闭塞完全，并保持颈动脉通畅。

The TTB-USA we used in our study is the production of IBI corporation, it has two electrode at the tip of a 7F catheter, its tip and ablation temperature can be controlled.

本实验应用的是一种新型的超声球囊导管(through the balloon ultrasound ablation system，TTB-USA)，它将一个换能器安放在7F电极导管顶端，外面用一弹性良好的球囊包裹，在造影的引导下，把带有球囊的导管顶端置放于需消融处，用稀释的造影剂充盈球囊，然后发放超声波产生一个环状损伤，达到阻断电传导的目的。

Puncture into Attain long sheath of CS through left infraclavicular vein, guided by CS pipe, take sheath into CS, make reverse contrast of heart vein with Attain saccule contrast pipe, put the left ventricle electric pole into the vein through sheath, then bring it into right ventricle apex and right cardiac ear through the electric pole of right ventricle and atrium, connect it with 3-cavity pulse generator, which is buried under left chest skin.

方法］经左锁骨下静脉穿刺送入Attain冠状静脉窦长鞘，在CS导管的导引下，将鞘送人CS，用Attain球囊造影导管进行心脏静脉逆行造影，将左心室电极经长鞘放入选择的静脉，送人右心室及右心房电极至右室心尖和右心耳。与三腔脉冲发生器连接，脉冲发生器埋藏于左上胸皮下。

Method］ Puncture into Attain long sheath of CS through left infraclavicular vein,guided by CS pipe,take sheath into CS,make reverse contrast of heart vein with Attain saccule contrast pipe,put the left ventricle electric pole into the vein through sheath,then bring it into right ventricle apex and right cardiac ear through the electric pole of right ventricle and atrium,connect it with 3-cavity pulse generator,which is buried under left chest skin.

双心室起搏治疗心力衰竭的临床观察"版权属于原作者所有！请勿将"双心室起搏治疗心力衰竭的临床观察用于商业用途！［目的］观察双心室起搏治疗心力衰竭临床疗效。［方法］经左锁骨下静脉穿刺送入Attain冠状静脉窦长鞘，在CS导管的导引下，将鞘送人CS，用Attain球囊造影导管进行心脏静脉逆行造影，将左心室电极经长鞘放入选择的静脉，送人右心室及右心房电极至右室心尖和右心耳。

Once correctly recognized, pericardiocentesis started via subxyphid routine under flouscopy, including insertion of 145 cm guide wire, sheath and pigtail catheter.

处理方法：患者取平卧位，用18号静脉穿刺针带注射器及造影剂，在X线透视下于剑突下进行心包穿刺。穿刺针进入心包后立即注射5 ml造影剂，若造影剂沿心包分布则肯定穿刺针入心包。然后送入145 cm导引钢丝，并经钢丝送入鞘管及猪尾导管。引流完毕后留置猪尾导管24小时。

RESULTS: The incidence of sialolith increased from the orifice of Wharton's duct to hilum, 62.5% of the stones were located in the posterior of Wharton's duct, the most common shape was round and oval, the volume of calculus in the posterior Wharton's duct was bigger than that in the anterior duct.

结果：下颌下腺导管结石在导管中发生的位置由前向后依次升高，62.5%患者结石位于导管的后段，结石以圆形和椭圆形为多，位于后段者体积多较大。

The tremie is connected with special bayonet fittings, with the inner diameter of 25cm and segment length of 3m except for the bottom segment 6m.

导管采用专用的卡口式导管，导管内径25cm，分节长3m，最下节长6m。

To study the jack up drilling rig used in Bohai sea, a bending deformation equation expressed by trigonometrical number equation is established based on energy method.

以渤海自升式钻井平台为研究对象，根据能量法建立了用三角级数方程表示的隔水导管挠曲变形方程，由雷利法计算了隔水导管系统的振动频率，并通过工程实例对隔水导管在不同尺寸和不同水深条件下的自振特征和特点进行了分析。

Methods First, 704 patients receiving CO2 laryngeal laser operation from July 2, 2003 to August 21, 2008 were enrolled, and their risk events and causes were systematically analyzed. Second, in vitro experiment, we tested the tolerance of the PVC tube against different CO2 laser energy in different cutting patterns when the cuff was inflated in water or air. We also tested the combustion conditions of the PVC tube in different oxygen concentration, laser energy and cutting patterns. Results Tracheal cuff were punctured by the laser in 92 of all 704 cases. Spark and dense smoke were observed in 8 and 37 cases respectively.

一是统计和分析我院2003年7月2日至2008年8月21日进行的704例喉二氧化碳激光手术所发生的危险情况；二是通过体外试验，观察注水和注空气时气管导管套囊在不同激光能量和不同激光切割方式下对二氧化碳激光的耐受情况，以及PVC气管导管在不同氧浓度、不同激光能量和不同激光切割方式下的燃烧情况。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。