Drainage device suitable for glaucoma treatment

Abstract

The invention provides a drainage device suitable for glaucoma treatment, the drainage device comprises a slender drainage body and a marking ring arranged at the head position of the drainage body, the drainage body has a radial section with the thickness size smaller than the width size, and the thickness size refers to the size of the drainage body in the extension direction of the curvature radius corresponding to the arc shape of the drainage body. The drainage body is in an arc shape matched with the physiological curvature of the sclera and the eyeball in the axial extension direction of the drainage body so that the drainage body can be matched with the physiological curve of the eyeball of the human body during implantation, the adaptation degree of the drainage body and the eyeball can be improved, and foreign body sensation of the eye and damage to the eyeball can be reduced. The marking ring is fixed to the head of the drainage body, the distance between the marking ring and the end of the head of the drainage body is matched with the size of the anterior chamber, and when the drainage device is implanted into the suprachoroidal space, the marking ring can serve as a marker to control the implantation depth of the drainage device.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a drainage device suitable for glaucoma treatment. Background technique [0002] Drainage devices play an important role in the treatment of glaucoma. At present, Allergan's XEN drainage fluid is made of pigskin gelatin cross-linked with glutaraldehyde. The main principle of MIGS surgical products is to directly connect the anterior chamber and subconjunctival cavity with drainage fluid to increase the discharge of aqueous humor to achieve the purpose of reducing intraocular pressure. [0003] However, there is currently no commercial product that acts on the suprachoroidal space for aqueous drainage. Although there are few devices that connect the anterior chamber and the suprachoroidal space to drain aqueous humor to reduce intraocular pressure, even some early cases did not achieve the expected results for various reasons. However, the scientificity of th...

AI Technical Summary

Problems solved by technology

For example, CN 110913809A discloses a glaucoma drainage device, which includes an elongated body extending axially from the distal end to the proximal end. After implantation, the slender body connects the anterior chamber and the suprachoroidal space, and at least one transparent open groove in the slender body promotes the flow of aqueous humor from the anterior chamber to the suprachoroidal space along the open groove, thereby reducing intraocular pressure, but It is made of flexible medical polymer materials, and the front end is easily compressed by the ciliary muscle during use, making it difficult to maintain effective support

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