Scotti D M
Department of Radiology, Methodist Hospital, Thomas Jefferson University, Philadelphia, PA 19148.
J Vasc Interv Radiol. 1991 Aug;2(3):393-9. doi: 10.1016/s1051-0443(91)72271-9.
A new two-piece T tube has been developed for easy reinsertion over a guide wire, usually without the need for tract dilation. It is introduced as a single unit over a removable introducer cannula and is formed in situ within the common bile duct by manipulation of guiding sutures. The self-retaining T configuration is maintained by a suture-locking device. The T tube can be easily retrieved, repositioned, or exchanged. It can be modified distally with either a long limb or a "T loop" to provide internal biliary drainage via the T-tube tract. These low-profile catheters improve the safety of tube replacement through immature tracts (n = 6) and have also been introduced through transhepatic tracts (n = 6). Thirty-three catheters have been placed in 21 patients without significant complications.
一种新型两件式T管已被研发出来，便于通过导丝重新插入，通常无需进行通道扩张。它作为一个整体通过可移除的导入套管引入，并通过操作引导缝线在胆总管内原位形成。自固定T形结构由缝线锁定装置维持。T管可以轻松取出、重新定位或更换。它可以在远端用长支或“T环”进行改良，以通过T管通道提供内部胆汁引流。这些外形小巧的导管提高了通过未成熟通道更换导管的安全性（n = 6），并且也已通过经肝通道引入（n = 6）。已在21例患者中放置了33根导管，无明显并发症。
