High-compliance thoracic aorta covered stent as well as sizing mould and sizing method thereof

Abstract

The invention relates to a high-compliance thoracic aorta covered stent as well as a sizing mould and a sizing method thereof. The high-compliance thoracic aorta covered stent comprises a coating material and a metallic framework, wherein the coating material attaches to the surface of the metallic framework, so that a tubular structure is formed; the coating material is also fixedly connected with the metallic framework by means of medical sutures; the metallic framework comprises a plurality of W-shaped support rings and screw-type support rings, wherein each screw-type support ring is positioned between every two adjacent W-shaped support rings, and the two ends of each screw-type support ring are respectively and fixedly connected with the every two adjacent W-shaped support rings; one end of the coating material is provided with a W-shaped uncoated stent, and the two ends of the coating material are respectively provided with a development mark. The high-compliance thoracic aorta covered stent is used for interventional therapy of thoracic aortic dissection and thoracic aortic aneurysm, and can improve the compliance of a stent main body; after being implanted into the aorta, the stent can better adapt to the form of the aorta, is better in wall adherence, and can reduce complications such as internal leakage and stent-derived new wound which are caused by stent implantation.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a highly flexible thoracic aortic covered stent for minimally invasive interventional treatment of thoracic aortic dissection and thoracic aortic aneurysm, as well as a shaping mold and method thereof. Background technique [0002] Aortic dissection and aortic aneurysm are vascular diseases with a high mortality rate, and with the aging of the population and the continuous improvement of clinical diagnostic techniques, the incidence / discovery rate is increasing year by year. [0003] The treatment methods of aortic dissection and aneurysm include medical treatment, surgical treatment and interventional treatment. Drug therapy is the basic treatment, the main purpose is to relieve pain, reduce blood pressure and left ventricular ejection rate. Surgical treatment is the main treatment for Stanford type A lesions, the main purpose is to prevent aortic rupture or...

AI Technical Summary

Problems solved by technology

However, because the metal stent ring of this structure cannot be bent in the axial direction, this type of thoracic aortic stent is relatively stiff as a whole. symptoms, puncture the aorta to form new stent-derived breaks, etc.

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