Intravascular stent

A technology of vascular stents and linking rods, which is applied in the field of vascular stents, and can solve the problems of flipping and twisting, easy deformation of vascular stents, etc.

Pending Publication Date: 2020-08-14
SHANGHAI JUNLIAN MEDICAL EQUIP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that existing vascular stents are prone to deformation and twisting, the present invention proposes a vascular stent, which includes a stent ring and a connecting rod, and the stent ring includes a rod segment and an arc-shaped crown. The strut segment an

Method used

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Embodiment Construction

[0008] Below, combine figure 1 The vascular stent of the present invention will be described in detail.

[0009] like figure 1 As shown, the vascular stent of the present invention includes a stent ring 1 and a link rod 2, wherein the stent ring 1 includes a strut segment 11 and an arc-shaped crown 12, and the strut segment 11 and the crown 12 are connected to form a wavy ring structure , and the included angle between the two strut segments 11 connected to both ends of the crown portion 12 is less than 90°; 2 is an arc structure. Preferably, the link rod 2 is an S-shaped structure and / or an omega-shaped structure, so that the flexibility of the vascular stent in its length direction can be maintained, so that the length and direction of the vascular stent can be adjusted according to needs, which is convenient for placement into the patient. In the blood vessels of the diseased part, it will not cause damage to the blood vessels of the patient. Preferably, the link rod 2 ...

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Abstract

The invention relates to the field of medical instruments, in particular to an intravascular stent for treating cardiovascular and cerebrovascular diseases. In order to solve the problem that stent rings of an existing intravascular stent are prone to deformation, overturning and twisting, the intravascular stent is provided and comprises stent rings and a linking rod, each stent ring comprises asupporting rod section and an arc-shaped crown, and each supporting rod section and the corresponding crown are connected with each other to form a wavy ring structure; and two ends of the linking rodare connected with the crowns of the two adjacent stent rings, and the linking rod is of an arc-shaped structure. The intravascular stent is attached to the inner wall of a blood vessel after being placed into the blood vessel of a patient, so that the blood vessel loss rate is effectively reduced, and the problems of intravascular restenosis and intravascular acute thrombosis after the intravascular stent is implanted are reduced; and the crowns at the corresponding positions on the two adjacent stent rings are connected with each other through the linking rod which is of the arc-shaped structure, and when the intravascular stent is expanded, the circumstance that the linking rod deforms, overturns and twists, and consequently the wall attaching effect of the intravascular stent is affected can be avoided.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a vascular stent for treating cardiovascular and cerebrovascular diseases. Background technique [0002] At present, in the treatment of cardiovascular and cerebrovascular diseases, vascular stents are mostly placed in the blood vessels of the diseased site. Commonly used vascular stents are mostly mesh structures formed by laser cutting of cobalt-chromium alloys or stainless steel pipes with an outer diameter of about 1.8mm, and the length of the stent rods in the mesh structure is usually between 1.0-1.5mm, and the width of the stent rods is between 1.0-1.5mm. The thickness of the stent rod is about 0.1mm, and the thickness of the stent rod is about 0.08mm; after surface treatment such as physical polishing, a drug-loaded coating is sprayed on the surface of the mesh structure, and it can be implanted into the patient's diseased blood vessel. Although this type of vascular stent...

Claims

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Application Information

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IPC IPC(8): A61F2/915A61L31/02A61L31/14A61L31/16
CPCA61F2/915A61F2002/91575A61F2002/91583A61F2250/0067A61L31/02A61L31/14A61L31/16
Inventor 崔景民谢雁文潘长江
Owner SHANGHAI JUNLIAN MEDICAL EQUIP
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