Preparation method of absorbable stent in cerebral vascular bypass surgery and angioplasty

Abstract

The invention relates to a preparation method of an absorbable stent in cerebral vascular bypass surgery and angioplasty. The preparation method includes the steps of selecting a straight through tube to serve as an absorbable stent body; arranging a through pipe made from the same material as the stent body in the middle of the stent body vertically and then connecting the through tube with the stent body into a whole; or, at one end of the stent body, arranging two inclined through tubes which are made from the same material as the stent body and communicated with the stent body, and then connecting the inclined through tubes with the stent body into a whole; or, processing two ports at the two ends of the stent body into inclined-section ports respectively. The prepared stent has excellent safety, and in clinical application, the prepared stent can prevent blood from leaking out of an anastomosis, promote the healing of the anastomosis and avoid anastomosis stenosis; and long-term administration of anticoagulant drugs can be avoided.

Description

technical field [0001] The invention relates to a preparation method of a vascular stent, in particular to a preparation method of an absorbable stent in cerebrovascular bypass and plastic surgery. Background technique [0002] Clinically, cerebrovascular bypass surgery and angioplasty are highly difficult neurosurgery operations. At present, it is mainly used in: (1). The treatment of chronic cerebral ischemic diseases; (2). For some complex giant aneurysms and fusiform aneurysms, the parent artery must be occluded due to difficulties in clipping or embolization. Surgical treatment for patients with remote ischemia who cannot tolerate it; (3). A small number of skull base tumors invade important intracranial blood vessels. In order to completely resect the tumor, prior vascular bypass surgery is required. [0003] There are two main surgical complications of cerebrovascular bypass and plastic surgery: one is intraoperative cerebral ischemia; the other is postoperative anas...

AI Technical Summary

Problems solved by technology

[0006] In view of the technical difficulty of vascular anastomosis and angioplasty, the high risk of intraoperative cerebral ischemia, and the serious complications of postoperative anastomotic thrombosis, the current cerebrovascular bypass and angioplasty operations cannot be carried out widely in the world

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