Vorwerk D, Günther R W, Schürmann K, Schmitz-Rode T, Biesterfeld S
Department of Diagnostic Radiology, Technical University of Aachen, Germany.
Radiology. 1995 Oct;197(1):153-6. doi: 10.1148/radiology.197.1.7568814.
To test a self-expanding tulip-shaped sheath designed for percutaneous embolectomy in an in vivo animal experiment.
In nine sheep, a total of 23 percutaneous balloon embolectomies were performed with use of a self-expanding tulip sheath device with an outer diameter of 9- or 10-F when collapsed. A 10-F instrument was used in 11 cases, and a 9-F instrument was used in 12. Radiopaque emboli were pushed into the aorta via the left carotid or contralateral femoral artery with a 16-F introducer sheath.
The embolus was captured in the tulip cage in all 23 cases. Retrieval of the embolus into the sheath was complete in 21 of 23 cases. In two cases, minor parts of the embolus dislodged from the sheath. Major embolism did not occur. In nine cases, the outer sheath had to be cleared of remaining clot particles with aspiration.
The noncovered self-expanding tulip sheath is an effective and safe instrument for percutaneous embolectomy under in vivo conditions.
在体内动物实验中测试一种专为经皮取栓设计的自膨胀郁金香形鞘管。
对9只绵羊进行了总共23次经皮球囊取栓术，使用的是一种外径在收缩状态下为9F或10F的自膨胀郁金香鞘管装置。11例使用10F器械，12例使用9F器械。通过一个16F导入鞘管，将不透X线的栓子经左颈动脉或对侧股动脉推送至主动脉。
23例中栓子均被捕获在郁金香形网篮中。23例中有21例栓子被完整回收至鞘管内。2例中栓子有小部分从鞘管中脱落。未发生严重栓塞。9例中，需通过抽吸清除外鞘管内残留的血栓颗粒。
在体内条件下，未覆膜自膨胀郁金香鞘管是一种有效且安全的经皮取栓器械。
