Drainage-type flexible micro support and medical appliance

A miniature and flexible technology, applied in the field of medical devices, can solve problems such as local proliferation, lumen collapse and blockage, and pathological changes, and achieve the effect of reducing proliferation and inflammation and reducing intraocular pressure

Pending Publication Date: 2017-07-21
微瞳(武汉)医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a drainage-type flexible micro-stent and a medical device to solve the problem in the prior art that the single-lumen shunt may be deformed under the pressure of the muscle after being implanted for a long time, resulting in collapse and blockage of the lumen; After the shunt is implanted, it may cause proliferation and inflammation in the local area, and cause other technical problems of lesions

Method used

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  • Drainage-type flexible micro support and medical appliance
  • Drainage-type flexible micro support and medical appliance
  • Drainage-type flexible micro support and medical appliance

Examples

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Embodiment 1

[0036] For the convenience of understanding, before introducing this embodiment, the structure of the anterior chamber and the posterior chamber of the eye will be briefly described. combine figure 2 The eye is generally spherical and is covered by the sclera S as shown. The retina R covers the posterior half of the eye. The retina records light and sends signals to the brain via the optic nerve. The eye is mostly filled and supported by the vitreous, a clear, jelly-like substance.

[0037] The elastic lens L is located near the front of the eye. The lens L provides adjustment of focus and is suspended within a capsular bag from the ciliary body CB, which contains the muscles that change the focal length of the lens. The space in front of the lens L is divided in two by the iris I, which controls the aperture of the lens and the amount of light that reaches the retina. The pupil is a hole in the center of the iris I through which light passes. The space between the iris...

Embodiment 2

[0056] The second embodiment provides a medical device, which includes a delivery device for delivering the drainage-type flexible micro-stent described in the first embodiment.

[0057] Specifically, the drainage-type flexible micro-stent includes a multi-lumen drainage tube, and the multi-lumen drainage tube passes along the path from the scleral process of the anterior chamber eye into the suprachoroidal space, wherein the multi-lumen drainage tube The drainage tube includes at least:

[0058] A fluid channel 1, the fluid channel 1 is arranged through the center of the drainage tube, it has an inflow port and an outflow port, the fluid channel 1 can reduce the intraocular pressure by guiding the aqueous humor in the anterior chamber to flow into the suprachoroidal space Purpose.

[0059] A plurality of medicine filling chambers 2, a plurality of medicine filling chambers 2 are arranged on the periphery of the fluid passage 1, and are respectively arranged through the circu...

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Abstract

The invention relates to the technical field of medical appliances and especially relates to a drainage-type flexible micro support and a medical appliance. A multi-cavity drainage pipe is disposed, wherein the multi-cavity drainage pipe passes according to the path of entering suprachoroidal space via a scleral process of an eye in an anterior chamber. The multi-cavity drainage pipe at least comprises a fluid access, multiple drug filling cavities and multiple drug filling cavities. The micro support passes according to the path of entering the suprachoroidal space via the scleral process of the eye in the anterior chamber; and the fluid access of the micro support guides chamber solution of the anterior chamber to flow into the suprachoroidal space, so that intra-ocular pressure is reduced. Meanwhile, the drug filling cavities can release drugs at fixed positions effectively and enduringly, so multiplication and inflammation of the fixed position can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a drainage type flexible micro-stent and a medical device. Background technique [0002] Currently, glaucoma is a disease in which aqueous humor in the eye increases. In a healthy eye, the ciliary processes secrete aqueous humor, which then passes through the corner between the cornea and iris. Glaucoma appears to be the result of obstruction of the trabecular meshwork. Such blockage can be caused by the shedding of cells or other debris. When aqueous humor is not drained properly from the blocked mesh, it builds up causing increased pressure in the eye, especially on the blood vessels leading to the optic nerve. High pressure on blood vessels can cause retinal ganglion cells to die and eventually lead to blindness. [0003] In the related art, a drainage device or shunt tube is implanted in the eye during surgical treatment of glaucoma. The purpose of this drainage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/007
CPCA61F9/0017A61F9/007A61F9/00736A61F9/00781
Inventor 陈福成朱成敏戴会新张华书孙云王毅
Owner 微瞳(武汉)医疗科技有限公司
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