Ancalmo N, Ochsner J
Dept of Surgery, Ochsner Clinic, Baton Rouge, LA 70816.
J La State Med Soc. 1992 Sep;144(9):423-4, 427-8.
The search for the ideal vascular graft is a dream that has eluded surgeons for centuries. Since the introduction of the fabric vascular prosthesis in 1952 by Voorhees, Jaretzki, and Blakemore, a wide variety of materials and designs have been tested. Dacron has withstood the test of time in both the knitted and woven types. Each of these graft designs has its own advantages and disadvantages, but we believe that the interlock construction of the Ochsner series grafts provides a solution to the problems associated with the earlier woven grafts while maintaining the advantages of the woven construction: (1) unraveling has been eliminated, and fraying has been reduced by the use of the interlock stitch; (2) the graft has been made soft and pliable by using three low-twist yarns, avoiding chemical impaction of the yarns, and utilizing a loose crimp; and (3) nonfixation of the pseudo-intima has been corrected by using low-twist, highly filamentous yarns which allow ingrowth of tissue for good fixation.
寻找理想的血管移植物是一个困扰外科医生数百年的梦想。自1952年Voorhees、Jaretzki和Blakemore引入织物血管假体以来，人们已经测试了各种各样的材料和设计。涤纶在针织和编织类型中都经受住了时间的考验。这些移植物设计中的每一种都有其自身的优缺点，但我们认为，奥克斯纳系列移植物的联锁结构在保持编织结构优点的同时，为解决与早期编织移植物相关的问题提供了一种解决方案：（1）通过使用联锁针法消除了脱线，并减少了磨损；（2）通过使用三根低捻度纱线、避免纱线的化学挤压以及采用松散卷曲，使移植物变得柔软且柔韧；（3）通过使用低捻度、高长丝纱线来纠正假内膜的不固定，这种纱线允许组织向内生长以实现良好的固定。
