Hallock G G, Rice D C
Division of Plastic Surgery, Lehigh Valley Hospital, Allentown, Pennsylvania, USA.
J Reconstr Microsurg. 1996 Jan;12(1):59-62; discussion 62-3. doi: 10.1055/s-2007-1006454.
A micropunch can mechanically create a precise, clean microarteriotomy that is a simple and perhaps more accurate method, especially in atherosclerotic vessels where plaque or the risk of intimal dissection may sometimes interfere with conventional incision or excision techniques. A 1.5-mm. prototype micropunch was tested in seven Sprague-Dawley rats to create;l an end-to-side femoral vein to artery fistula, with a traditional traction suture method used on the contralateral side as a control. All anastomoses were patent immediately and at 2 weeks, implying no compromise, even in small vessels, by using a micropunch. However, the technique had to be modified, as the 1.5-mm anvil could not be inserted directly into the vessel lumen because of the small size of the rat femoral artery. This indicates a significant limitation of this device for use in vessels with an internal diameter less than that of the chosen anvil size.
微型穿孔器能够通过机械方式制造出精确、干净的微动脉切开术，这是一种简单且可能更精确的方法，尤其适用于动脉粥样硬化血管，在这些血管中，斑块或内膜剥离风险有时可能会干扰传统的切开或切除技术。一个1.5毫米的原型微型穿孔器在7只斯普拉格-道利大鼠身上进行了测试，以创建端侧股静脉至动脉瘘，对侧采用传统牵引缝合方法作为对照。所有吻合口在即刻和2周时均通畅，这意味着即使在小血管中使用微型穿孔器也不会有问题。然而，由于大鼠股动脉尺寸较小，1.5毫米的砧座无法直接插入血管腔，因此该技术必须进行改进。这表明该装置在用于内径小于所选砧座尺寸的血管时存在重大局限性。
