An aortic dissection stent containing a chip and a monitoring system for the stent

A technology for aortic dissection and monitoring system, applied in the field of medical devices, can solve problems such as damage, unsatisfactory recovery effect, and weak coating, and achieve the effects of preventing damage, facilitating climbing growth, and inhibiting regeneration.

Active Publication Date: 2018-02-13
张天华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the shrinkage, collapse and damage of the covering film in the existing covered stent-grafts cause the covering film to be weak or damaged; while the outer wall of the fully-coated covered stent-graft is relatively smooth, which makes it easier to shift than the bare metal stent
Although stent (ES) placement has the advantages of no need for thoracotomy, less trauma, shorter operation time, less pain for patients, and accurate curative effect, there will still be some complications and unsatisfactory recovery effects in a small number of patients after interventional treatment

Method used

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  • An aortic dissection stent containing a chip and a monitoring system for the stent
  • An aortic dissection stent containing a chip and a monitoring system for the stent
  • An aortic dissection stent containing a chip and a monitoring system for the stent

Examples

Experimental program
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Effect test

Embodiment 1

[0035] like figure 1 As shown, the present invention provides an aortic dissection stent 1 containing a chip, comprising: a stent body 11, a chip 12 is fixedly installed at the lower end of the stent body 11, and a coating 13 for wrapping the stent and the chip, and the coating is used to isolate blood vessels Inner wall and blood.

[0036] The stent main body 11 is composed of a plurality of stent units 111 and a plurality of connecting sections 112 to form an upper, lower and hollow cylinder, and the hollow cylinder is mainly suitable for smooth flow of blood. The stent unit 111 is a "pentagon" structure, which is mainly used to prevent shrinkage and collapse of the covering film 13; it is composed of a main body section 111a and four repair sections, and the diameter of the repair section is 2 times. The repair section mainly includes a first repair section 111b, a second repair section 111c, a third repair section 111d and a fourth repair section 111e. The 4 repair sect...

Embodiment 2

[0042] The difference between this embodiment and the above embodiment is that the degradable repair segment of the present invention also contains a drug for treating aortic dissection. The mass ratio of the drug to the degradable material is 5-25%:1. The drug is preferably rapamycin, and other drugs with the same effect can be substituted. The rapamycin contained in the repair segment is not limited to the effects on the cells of the immune system, it can also inhibit the proliferation of smooth muscle cells, endothelial cells, fibroblasts, etc. And it can better inhibit the regeneration of arterial dissection. Only the repaired segment contains the drug for the treatment of aortic dissection, which mainly prevents the smooth outer wall of the full-coated stent-graft, which leads to displacement compared with the bare metal stent.

Embodiment 3

[0044] like image 3 As shown, the difference between this embodiment and the above-mentioned embodiment is that the connection points of the several repair segments are arc-shaped, which are used to prevent damage to the vascular endothelium.

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Abstract

The invention discloses an aortic dissection stent containing a chip and a monitoring system of the aortic dissection stent; the aortic dissection stent comprises a stent body, the chip and a covering film; the stent body is composed of a plurality of single stents and a plurality of connection segments; each single stent is of 'star' structure composed of a main segment and four repair segments, and the main segment and the connection segments are connected at 90 degrees; the chip is fixedly mounted at the lower end of the stent body; the covering film covers the stent and the chip and is integrated to the four repair segments. The aortic dissection stent of the invention is a novel medical biomaterial, capable of better improving the repair function of aortic dissection at low recurrence rate, and the dissolved chip in the dissection enables restoration of the aortic dissection to be monitored.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an aortic dissection stent containing a chip and a monitoring system for the stent. Background technique [0002] Aortic dissection refers to a hematoma formed by blood in the aortic lumen entering the middle layer of the aortic wall through a rupture in the intima. It is not an expansion of the aortic wall. It is different from aortic aneurysm. Aortic dissecting aneurysm (aortic dissecting aneurysm), now more renamed as aortic dissecting hematoma (aorticdissecting hematoma), or aortic dissection separation, referred to as aortic dissection. Aortic dissection refers to the gradual peeling and expansion of the intima due to local tearing of the intima and the impact of strong blood, resulting in the formation of true and false lumens in the artery. This results in a series of manifestations including tear-like pain. The aorta is the main blood vessel of the body. It bear...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): A61F2/07A61B5/0205A61B5/1486
CPCA61B5/02055A61B5/024A61B5/14507A61B5/14532A61B5/1486A61F2/07A61F2002/075A61F2210/0014A61F2230/0017A61F2250/0058A61F2250/0067
Inventor张天华
Owner张天华