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Aqueous humor drainage device for being implanted into eyes of glaucoma patient

A drainage device and glaucoma technology, which is applied in the field of medical devices, can solve the problem of drainage risk that needs to be demonstrated, and achieve the effect of reducing hyphema and improving drainage efficiency.

Pending Publication Date: 2021-08-24
MINGCHE BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of drainage path, Cypass drainage to the suprachoroidal space can avoid the management of postoperative filtering blebs, but the product has been recalled globally, and its drainage risk needs to be demonstrated

Method used

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  • Aqueous humor drainage device for being implanted into eyes of glaucoma patient
  • Aqueous humor drainage device for being implanted into eyes of glaucoma patient
  • Aqueous humor drainage device for being implanted into eyes of glaucoma patient

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as figure 1 As shown, an aqueous humor drainage device for implanting in the eyes of glaucoma patients, the drainage device 1 is in the shape of a tube as a whole, and a drainage channel 2 is formed in it, which is used to drain the aqueous humor to the filtering tissue, and the drainage channel 2 is equal to Diameter drainage channel.

[0055] In a specific embodiment, the diameter of the drainage channel 1 is 0.03-0.3 mm.

[0056] In a specific embodiment, the axial length of the diverter is 3-15 mm. The axial length of the diverter can be adjusted according to the actual situation.

Embodiment 2

[0058] Such as figure 2 As shown, an aqueous humor drainage device for implanting in the eyes of glaucoma patients, the drainage device 1 is in the shape of a tube as a whole, and a drainage channel 2 is formed in it, which is used to drain the aqueous humor to the filtering tissue. The drainage channel 2 is gradually Expand the diameter of the drainage channel.

[0059] In a specific embodiment, the maximum diameter of the drainage channel 2 is not more than 0.3 mm, and the minimum diameter is not less than 0.03 mm. Wherein, the diameter of the large-diameter end of the drainage channel 2 is 0.05mm-0.3mm, and the diameter of the small-diameter end is 0.03mm-0.15mm. Preferably, the diameter of the large-diameter end of the drainage channel 2 is 0.05mm-0.15mm, and the diameter of the small-diameter end is 0.04mm-0.06mm, which can realize an initial flow rate of 3.5-15 times the rate of aqueous humor production. Dual regulation of venous pressure and pipeline resistance can e...

Embodiment 3

[0062] Others are the same as in Embodiment 1 or Embodiment 2, except that the outer wall of the flow guide is also provided with an auxiliary fixing structure 3 for preventing the axial movement of the flow guide, wherein the auxiliary fixing structure 3 is distributed on the outer wall of the flow guide rings, bumps, ribs, tabs or threaded projections.

[0063] Such as image 3 and Figure 4 As shown, the auxiliary fixing structure 3 is a protruding ring distributed on the outer wall of the flow guide, wherein the protruding rings can be evenly distributed or non-uniformly distributed.

[0064] Such as Figure 5 and Figure 6 As shown, the auxiliary fixing structure 3 is a raised point distributed on the outer wall of the flow guide, wherein the raised points can be evenly distributed on the axial side wall of the flow guide, or can be distributed at one end of the side wall of the flow guide, or can be distributed on the side wall of the flow guide. Anywhere on the side...

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Abstract

The invention relates to the field of medical instruments, in particular to an aqueous humor drainage device used for being implanted into the eyes of a glaucoma patient, the whole drainage device is tubular, a drainage channel is formed in the drainage device and used for draining aqueous humor to filtered tissue, and the drainage channel is an equal-diameter drainage channel or a gradually-expanded-diameter drainage channel. The invention provides the aqueous humor drainage device used for being implanted into the eyes of the glaucoma patient, the device is made of a material with good biocompatibility, the drainage efficiency is high clinically, the intraocular pressure is obviously reduced, in addition, by adopting the microfluidic and mold turning technology, the processing technology is optimized, the production efficiency is improved, and batch production is facilitated.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a drainage device for reducing intraocular pressure of glaucoma patients. Background technique [0002] As a slowly progressive optic neuropathy, glaucoma ranks second in the world's blinding eye diseases and is the leading cause of irreversible blindness. The "China Glaucoma Guidelines (2020)" pointed out that in 2020, the number of glaucoma patients in my country will reach 21 million, and the number of blind people will reach 5.67 million. Its pathogenesis is the accumulation of aqueous humor in the anterior chamber of the eyeball, resulting in an excessive increase in intraocular pressure, which in turn leads to permanent damage to optic nerve cells, and its typical characteristics are optic nerve head damage and corresponding visual field defects. The treatment of glaucoma has always been based on the principle of reducing intraocular pressure, preventing or slowing down the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/007
CPCA61F9/00781A61F2009/00891
Inventor 任冬妮王福乐殷瑞雪张洪波
Owner MINGCHE BIOTECHNOLOGY CO LTD
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