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Arterial stent vascular unit

A technology for blood vessels and arteries, applied in the field of arterial stent vascular units, can solve the problems of high resilience, blood vessel compression, and membrane folds, etc., and achieve the effect of preventing compression and reducing the straightening force.

Pending Publication Date: 2020-06-26
ZHONGSHAN HOSPITAL FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an arterial stent blood vessel unit to solve the problem that the existing aortic stent has a large rebound force on both sides of the curved blood vessel, which brings greater pressure to the blood vessel at its corresponding position, and the covering film is easily deformed by the stent blood vessel. Defects such as wrinkles

Method used

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  • Arterial stent vascular unit
  • Arterial stent vascular unit
  • Arterial stent vascular unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] An arterial stent blood vessel unit, refer to figure 1 with figure 2 , Including a tubular covering film 10 and a support ring 20 arranged on the tubular covering film 10. The tubular covering film 10 of this embodiment is curved. Both the inlet end and the outlet end of the tubular covering film 10 form a cut surface 101. The two cut surfaces 101 of this embodiment are both vertical cut surfaces. The tubular coating 10 includes a large curved side 11 and a small curved side 12. The planes on which the large curved side 11 and the small curved side 12 are located form a symmetry plane of the curved tubular coating 10. The vertical section is perpendicular to the symmetry plane of the curved tubular covering film 10, and the intersection line of the vertical section and the symmetry plane forms a right angle with the tangent line of the corresponding large curved side 11.

[0036] Reference figure 1 with figure 2 At least one support ring 20 is provided on the circumferen...

Embodiment 2

[0039] The artery stent blood vessel unit of this embodiment, refer to image 3 , Including a tubular covering film 10 and a support ring 20 arranged on the tubular covering film 10. The tubular covering film 10 is curved. The main difference between this embodiment and the first embodiment is that the two cut surfaces 101 of this embodiment are both For the oblique plane, the two oblique planes are perpendicular to the symmetry plane of the curved tubular film 10, and the intersection line of the oblique plane and the symmetry plane forms an included angle with the tangent line of the corresponding major curve side, and the included angle is not a right angle. The included angles specifically shown in this embodiment are all acute angles, of course, all may be obtuse angles, or one is acute and the other is obtuse.

Embodiment 3

[0041] The artery stent blood vessel unit of this embodiment, refer to Figure 4 , Including a tubular covering film 10 and a support ring 20 arranged on the tubular covering film 10, the tubular covering film 10 is curved, the two cut surfaces 101 of this embodiment are also chamfered surfaces, this embodiment and the second embodiment The main difference is that the two oblique cut surfaces of this embodiment are not perpendicular to the symmetry plane of the curved tubular film 10.

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Abstract

Disclosed is an arterial stent vascular unit. The arterial stent vascular unit comprises a tubular membranae tectoria and at least one supporting ring arranged on the tubular membranae tectoria, wherein the tubular membranae tectoria is of a bending shape or a straight cylinder shape; at least one supporting ring is arranged on the tubular membranae tectoria; the inlet end and the outlet end of the tubular membranae tectoria form cut surfaces, wherein the two cut surfaces of the bending-shaped tubular membranae tectoria are inclined section and / or vertical section, and the at least one cut surface of the straight cylinder-shaped tubular membranae tectoria is an inclined section. When an arterial stent blood vessel is constructed, different specifications of arterial stent vascular units can be selected for splicing according to different vascular curvature of patients, the requirements of various different vascular curvature patients are met, the constructed arterial stent blood vesselis matched with the spatial morphology of the arterial stent blood vessel of the human body in a natural state to be implanted into human blood vessel, so that the tubular membranae tectoria can be better attached to the blood vessel without wrinkling, and the resilience force generated after the arterial stent blood vessel is released in the blood vessel is reduced, and the blood vessel is prevented from being compressed.

Description

Technical field [0001] The invention relates to the field of implantable blood vessels, and more specifically to an arterial stent blood vessel unit. Background technique [0002] Thoracic aortic aneurysm and aortic dissection are catastrophic diseases that seriously threaten the lives of the masses. Without active treatment, the rate of disability and death is high. In recent years, with the increase in the incidence of hypertension, hyperlipidemia, hyperglycemia, and trauma, the incidence of thoracic aortic aneurysm and aortic dissection has increased significantly. At present, arterial stent vascular repair has a good effect and has been developed rapidly. [0003] At present, the existing arterial stent vessels usually have a straight tubular structure before being implanted in the aortic vessel, including tubular coverings and stents arranged on the tubular coverings, wherein the stents include a plurality of equal intervals along the axial direction of the tubular covering ...

Claims

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Application Information

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IPC IPC(8): A61F2/07
CPCA61F2/07A61F2002/072
Inventor 陈宏伟叶毅敏
Owner ZHONGSHAN HOSPITAL FUDAN UNIV
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