Manufacture and Theory of a New Kind of Intravascular Soluble Hollow Stent for Vascular Anastomosis with Adhesive, Cyanoacrylate Glue / 医疗卫生装备

ABSTRACT

Objective To research and make one kind of intravascular soluble hollow stent for vascular anastomosis. Methods According to the chemical industry, CaCl2, polyethylene glycol (PEG)and gelatin were used to make one kind of intravascular soluble hollow stent for vascular anastomosis, whose surface was covered with CaCl2 membrane(CaCl2 hollow stent). After putting the stent into the two cut sides of vascular, the author put the two sides together, and dropped alginic acid sodium solution, CaCl2 solution, and glue respectively. As soon as the glue solidified, the anastomosis was finished. Results The CaCl2 hollow stent could not only support the cannel of vascular, but also generate two membrane in the two side of anastomosis site. Thus the thickness of sealant was increased. It was effective to prevent leaking of cyanoacrylate glue and its toxicity. Conclusion The CaCl2 hollow stent can generate two membrane in the two side of anastomosis site, and could increase seal effectively. Using this stent could improve the anastomosis patency by increasing the sealant thickness, and preventing leakage of cyanoacrylate glue and its toxicity.