Salvianolic acid B-loaded 3D printing degradable intravascular stent
A 3D printing and salvianolic acid technology, applied in the field of medical devices, can solve the problems of low resistance to uncertain stress, inconvenient and smooth drug release, and inability to release in stages, so as to inhibit restenosis and restore normal physiological functions , delayed protective effect on atherosclerosis
Inactive Publication Date: 2022-05-13
SUZHOU ZHUOXINYA TECH CO LTD
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Problems solved by technology
However, the existing vascular stents have the problems of low resistance to uncertain stress and poor support stability. At the same time, when the existing stents release the loaded drug, the drug release is not convenient and smooth, and cannot be released in stages.
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[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Reference to a particular feature, structure, or characteristic described in connection with the embodiments is included in at least some, but not necessarily all, embodiments. If the specification states that a component, feature, structure or characteristic "may", "may" or "could" be included, that particular component, feature, structure or characteristic does not necessarily have to be included. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0033] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "lef...
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The invention discloses a salvianolic acid B loaded 3D printing degradable intravascular stent which comprises a first supporting ring, a second supporting ring and a supporting rod, and the second supporting ring is arranged on the side face of the first supporting ring; one end of the first supporting ring and one end of the second supporting ring are connected with the other first supporting ring and the other second supporting ring through supporting rods; the first supporting ring comprises a movable cavity formed in the first supporting ring, and a plurality of first clamping teeth are fixed to the other end of the first supporting ring. Through the first medicine storage cavity, the second medicine storage cavity and the middle core medicine storage cavity, the outermost layer of the supporting net frame is damaged in the degradation process, so that salvianolic acid B medicine in the first medicine storage cavity flows out, a blood vessel wound part is treated, in the subsequent degradation process, the salvianolic acid B medicine in the second medicine storage cavity and the middle core medicine storage cavity sequentially flows out, and the blood vessel wound part is treated. And the wounded blood vessel is treated, so that the effect of treating the wounded blood vessel by stages is achieved.
Description
technical field [0001] The invention relates to a medical device, in particular to a 3D printing degradable intravascular stent loaded with salvianolic acid B. Background technique [0002] Vascular stent implantation is a mechanical interventional treatment. For example, coronary artery stent implantation is the most effective way to deal with acute vascular occlusion, that is, the balloon catheter is inserted into the narrowed blood vessel through blood vessel puncture, and the stent is released to the coronary artery lesion by balloon expansion, so as to open the narrowed blood vessel wall and provide Continuous support to keep the coronary artery lumen open and smooth, and reduce the mortality rate of acute myocardial infarction. [0003] Clinically, the mechanical performance requirements for coronary stents are very high. It must not only have sufficient strength and fatigue performance to maintain the support of the stent to the vessel wall, but also need good flexib...
Claims
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IPC IPC(8): A61L31/16A61L31/14A61L31/06A61F2/90A61B17/22B33Y80/00
CPCA61F2/90A61B17/22B33Y80/00A61L31/16A61L31/148A61L31/06A61L31/14A61F2240/002A61F2250/0067A61B2017/22084A61L2300/622A61L2300/21A61L2300/42
Inventor 王武
Owner SUZHOU ZHUOXINYA TECH CO LTD