Foreign grafts of artificial blood vessel developm

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The development of artificial blood vessels abroad, and our present situation of artificial blood vessels

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:1-4. [7] Luo Xin Jin, Qing-Yu Wu. Small diameter artificial vascular Research [J]. Cardiothoracic Surgery in China, 2001,8 (3) :193-196. [8] HowTV,[link widoczny dla zalogowanych], GuidoinR, YoungSK. Engineeringdesignofvascularprosthesis [J]. ProcInstMeehEng ,1992,206:61-69. [9] MartinWK. Designingfabricsforbloodvesselreplacement [J]. CanadianTextileJournal,[link widoczny dla zalogowanych], 1991,108 (4) :24-30. [10] BatesIMedicalgraftincorporatesantimicrobialzeolite [J]. MedicalTextiles. 2002 (2) :7-8. [11] Xue Guanhua,[link widoczny dla zalogowanych], Zhang Ji Wei, Zhang Bai root. Endothelialization of artificial vascular Research [J]. Chinese Journal of Practical Surgery, 2002,22 (3) :174-175. [12] Wang Jiliang, R. Bin Wong. Gene Modification of graft progress [J]. International Journal of Biomedical Engineering volumes, 2001,24 (4) :158-162. [13] Zhang Yun, Zhang Bai root. Endovascular treatment of abdominal aortic aneurysm development and current status [J]. Chinese Journal of Practical Surgery, 2002,22 (3) :131-134. [14] Gu Lixia, Wang Lu, LINK. Development of artificial blood vessels and direction [J]. Shanghai Textile Science and Technology, 2003,31 (3) :52-53. (Editor: Xu Hui children) * News Bulletin additional guide pulley device to reduce loss of spinning off the conveyor belt yarn east Anhui Huayuan Textile Co., Ltd. in 2003, a Shanxi company equipped with the BS613-type spinning machine 5, operation in the production process. Doffing conveyor belt near the rear part of the regular deviation, and the body contact friction, causing serious side doffing belt wear and cracking, it will affect the normal operation of doffing conveyor belt, but also likely to increase the unit of consumption. To reduce wear and tear off the yarn conveyor belt,[link widoczny dla zalogowanych], conveyor belt at the rear exit of the installation of doffing a set of guide wheel device, symmetrically distributed on both sides of the exit (see Figure 1). Doffing belt A_A Figure 1 Schematic diagram of the installation guide wheel (size unit: mm) Method: Foot care in the angle with 30ram × 30ram; foot and body care hand in fixed contact surface drill two holes and fixed with bolts to the foot care in the body. Nylon guide wheel selection, each guide wheel interference in the micro-needle set 2 HK1010 small bearings. Set in the small guide wheel guide wheel, the small guide wheel nut up and down with a small foot care, foot care from top to bottom with a small nut in the car body entrusted with the feet,[link widoczny dla zalogowanych], so that conveyor belt doffing embedded arc on the guide wheel type of tank (Figure 1). How it works: doffing belt guide wheel embedded arc on the tank, conveyor belt guide wheel will not limit doffing deviation. When running off the yarn conveyor belt, driving guide wheel rotation, due to guide wheel is made of nylon material, a certain degree of wear resistance and flexibility, and needle roller bearings are installed between the resistance is small. The plane will improve the original point of friction to rolling friction, reduces wear and tear off the conveyor belt yarn. This guide wheel device installed after the year, the conveyor belt and then doffing the phenomenon has not been worn. (East of Anhui Huayuan Textile Co., Ltd.: cases Junping) * 57 *