Ball broaching laminating support

Abstract

The invention discloses a ball broaching laminating support, and belongs to the technical field of medical equipment. The ball broaching laminating support comprises a supporting support and a film covering the supporting support. The supporting support is arranged into a broken line or curve closed loop, a tubular hollow structure is formed by the supporting support and a connecting rod, the supporting support has certain supporting performance, and therefore the supporting support can expand outwards under the effect of a saccule to be attacked to the wall of the blood vessel. Compared witha self-expanding type laminating support, the ball broaching laminating support can expand from inside to outside according to the diameter of the wall of the blood vessel, the attaching effect between the ball broaching laminating support and the wall of the blood vessel can be improved, and the radial supporting effect of blood vessels of different diameters can be improved. As an outer sheath pipe similar to a semi-expanding type laminating support restraint support is not needed by the ball broaching laminating support, a conveyor with the small size can be used during implantation of theblood vessel, and precise positioning can be achieved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a ball-expanded stent graft. Background technique [0002] With the improvement of people's living standards, people's diet is mostly high in oil and salt, which leads to heavier and heavier load on blood vessels, which in turn leads to higher and higher incidence of vascular diseases, especially aneurysm and atherosclerosis Diseases are more common. For this type of vascular disease, the existing treatment plan is generally to use interventional medical equipment for interventional surgery, for example, by placing a covered stent in the blood vessel to cover the lesion, so as to prevent the loss of lesion plaque and Block blood flow to an aneurysm. [0003] Most of the existing stent-grafts are self-expanding stent-grafts. The radial support force of the self-expanding stent-grafts is not high, and the diameter is relatively large when implanted in blood vessels, whi...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing stent-grafts are self-expanding stent-grafts. The radial support force of the self-expanding stent-grafts is not high, and the diameter is relatively large when implanted in blood vessels, which leads to a large size of the conveyor required. The positioning effect is relatively poor, and it is not easy to accurately reach the target position

Moreover, when the self-expandable stent-graft is implanted into the target position, the diameter of the stent must be reduced due to lesions such as aneurysms protruding from the blood vessel wall, so that the covering membrane on it is prone to wrinkles, which not only affects the stent-graft The bonding effect with the vascular wall is prone to thrombosis or vascular restenosis, and also affects the release of radial support force, reducing the support effect of the stent graft on the vascular wall

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