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Aortic dissection stent containing chip and monitoring system of aortic dissection stent

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

Active Publication Date: 2017-09-08
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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  • Aortic dissection stent containing chip and monitoring system of aortic dissection stent
  • Aortic dissection stent containing chip and monitoring system of aortic dissection stent
  • Aortic dissection stent containing chip and monitoring system of aortic dissection stent

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Such as figure 1 As shown, the present invention provides an aortic dissection stent 1 containing a chip, including: a stent body 11, a chip 12 is fixedly mounted on the lower end of the stent body 11, and a film 13 for wrapping the stent and the chip, and the film is used to isolate blood vessels The inner wall and blood.

[0036] The stent body 11 is composed of several stent monomers 111 and several connecting sections 112 to form an upper, lower, and hollow cylinder, and the hollow cylinder is mainly suitable for the smooth flow of blood. The single stent 111 is a "five-pointed star" structure, which is mainly used to prevent shrinkage and collapse of the membrane 13; it is composed of a main section 111a and 4 repair sections, and the diameter of the repair section is the main section 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 secti...

Embodiment 2

[0042] The difference between this embodiment and the above-mentioned embodiment is that the degradable repair section of the present invention also contains a medicine 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 section is not limited to its effect on the cells of the immune system, it can also inhibit the proliferation of smooth muscle cells, endothelial cells, and fibroblasts. And it can better inhibit the regeneration of arterial dissection. Only the repair section contains drugs for the treatment of aortic dissection, which mainly prevents the smooth outer wall of the fully coated stent graft from causing displacement of the bare metal stent.

Embodiment 3

[0044] Such as image 3 As shown, the difference between this embodiment and the foregoing embodiment is that the connection points of the several repair sections are all arc-shaped 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 of the stent. Background technique [0002] Aortic dissection (aortic dissection) refers to a hematoma formed by blood in the aortic lumen entering the middle layer of the aortic wall through a tear in the intima. It is not an expansion of the aortic wall, and is different from aortic aneurysms. In the past, this situation was called Aortic dissecting aneurysm (aortic dissecting aneurysm) is now mostly called aortic dissecting hematoma (aortic dissecting hematoma), or aortic dissecting hematoma, referred to as aortic dissection. Aortic dissection refers to the partial tearing of the intima and the impact of strong blood. The intima gradually peels off and expands, forming a true and false cavity in the artery. This leads to a series of manifestations including tear-like pain. The aorta is the main blood ves...

Claims

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Application Information

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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
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