Venous cannula is also a deep venous puncture catheter. The method is to select the appropriate puncture site and insert the needle under the skin, and insert the needle with negative pressure until the dark red blood is absorbed, indicating that the needle has entered the vein, and the guide wire is inserted. Withdraw the puncture needle to leave the guide wire in the blood vessel, and then insert the venous catheter that needs to be indwelled along the guide wire, then exit the guide wire, inject diluted heparin saline and fix the catheter, the deep venous catheterization is completed. The veins for puncture and catheterization are usually selected clinically, including the subclavian vein, internal jugular vein, and femoral vein. After the puncture catheter is indwelled, attention must be paid to the care of the puncture site to avoid infection with thrombus or catheter falling off. venous cannulation,best veins for cannulation,venous cannulation set,venous cannulation technique Yong Yue Medical Technology(Kunshan) Co.,Ltd , https://www.yypcrtube.com
Faced with the "cold winter" data, the five major power generation groups started the idea of ​​listing financing, and the financing target is a new energy company with good profitability. A few days ago, it was reported that Guodian Kehuan Group, Fuxin Energy and Huaneng New Energy will strive for the initial public offering (IPO) this year. In addition, it is said that “Huaeng Group will actively revitalize existing assets this year and continue to do a good job in listing new energy companiesâ€. In fact, the China Electricity Council also sees the "critical" of the problem. Earlier this month, the China Electricity Council issued the "National Electricity Supply and Demand and Economic Operation Situation Analysis and Forecast Report (2010 to 2011)", saying, "First of all, to suppress the various factors of speculation and speculation in the rise of factory electricity and coal prices; Continue to adhere to the principles and mechanisms of coal-electricity linkage, and at the same time solve the problem of long-term upside down of thermal power prices; once again, rationalize the relationship between various terminal energy sources, and guide users to rationally consume various energy sources. Finally, accelerate the price mechanism of resource products. The pace of reform.†“The most important thing is to straighten out the price of electricity.†Relevant energy experts have repeatedly told the International Finance News that at least coal-electricity linkage should be launched in time to completely break through the market connection between coal and electricity. Analysts believe that this situation is not difficult to understand. Because compared with the spot coal price, the contract coal price “planned†by the relevant state departments is often relatively cheap, although the electricity companies are still complaining. The China Electricity Council believes that the reason for the loss of power companies is that the compliance rate of key coal contracts is declining. “Electric coal supply cannot be effectively guaranteed. The National Development and Reform Commission has inspected the key thermal coal contracts of over 300,000 tons in 2010 and found that the contract fulfillment rate is less than 50%â€. This has to worry about the industry's performance this year. Earlier at the end of December last year, relevant statistics showed that the total inter-provincial coal connection in 2011 is expected to be 932 million tons, of which 769 million tons of coal. However, as of December 31 last year, the national coal production and transportation needs to reach a total of 1.547 billion tons, far exceeding the planned capacity of the railway and the total capacity of the railway. According to the calculation of CEC, from 2003 to now, Qinhuangdao 5500 kcal thermal coal price has risen by more than 150%, only from October to December 2010, just two months, the five major power generation group's standard coal price rise exceeded At 100 yuan / ton, "this makes the five major power generation group coal-electricity business increase the loss, the loss is more than 10 billion yuan." The high loss of the five major power generation groups is largely due to the soaring domestic coal prices. Especially since October last year, China's coal prices have remained relatively high under the influence of “Millennium Extreme Cold†speculation, international liquidity and rising domestic demand. According to the data of the reporter, compared with October 2009, the price of coal in Shanxi Yufu, Datong, and other mixed varieties in October 2010 generally rose by RMB 50/ton to RMB 100/ton. Spring has arrived, but Chinese power companies are still "wintering." On February 24, the China Electricity Council said, "As of the end of October last year, 456 coal-fired power plants belonging to the five major power generation groups (Huaeng, Datang, Huadian, Guodian, China Power Investment) had 260 losses, with a loss of 58.2%." From January to November, the national asset-liability ratio of coal-fired power companies was 74.3%, an increase of 2.4% over the same period of the previous year. Faced with a severe loss situation, the five major power generation groups started the idea of ​​listing financing.