Internal shunt and method for treating glaucoma

a shunt and glaucoma technology, applied in the field of glaucoma surgery, can solve the problems of inability to report successful shunting techniques in the literature, inability to effectively treat glaucoma, and flawed techniques, and achieve the effect of reducing intra-ocular pressur

Inactive Publication Date: 2007-06-28
NOVARTIS AG
View PDF99 Cites 72 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0026] It is another object of the present invention to provide both a surgical method and an apparatus that utilizes the uveal b...

Problems solved by technology

Since in open angle glaucoma, which is the most common type of glaucoma, flow through the canal of Schlemm is impaired, this technique appears flawed.
Thi...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Internal shunt and method for treating glaucoma
  • Internal shunt and method for treating glaucoma
  • Internal shunt and method for treating glaucoma

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Generally speaking, a surgical technique and apparatus is described wherein an indwelling shunt is placed in the eye of patients having glaucoma. The shunt diverts aqueous humor from the anterior chamber to the suprachoroidal space from which it is removed by the blood flowing in the choroidal and uveal tissues. This decreases the intra-ocular pressure. The indwelling shunt maintains the area of exposure of aqueous humor with the uvea by physically preventing scarring of the surrounding tissues. The method utilizes the 25 mm Hg driving force of the protein colloidal osmotic pressure of the blood to drive aqueous humor into the blood.

[0034] In FIGS. 1 through 4, a portion of an eye is shown being surgically prepared with a hollow tube (indwelling shunt) 1 for the treatment of glaucoma. The hollow tube 1 has an interior open space 2 in which fluid (not shown) is transferred. The tube 1 diverts aqueous humor from the scleral lake 8 (FIG. 4) to the suprachoroidal space 12, as be...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A surgical technique wherein an indwelling shunt is placed in the eye of a patient having glaucoma. The shunt diverts aqueous humor from a deep scleral lake or directly from the anterior chamber to the suprachoroidal space from which it is removed by blood flowing in the choroidal and uveal tissues. This decreases the intra-ocular pressure. The indwelling shunt maintains the area of exposure of aqueous humor with the uvea by physically preventing scarring of the surrounding tissues. The method utilizes the 25 mm Hg driving force of the protein colloidal osmotic pressure of the blood to maximize the flow.

Description

FIELD OF THE INVENTION [0001] This invention pertains to a surgical treatment for glaucoma and, more particularly, to a new method and apparatus for surgically alleviating the intraocular pressure causing the glaucoma condition. BACKGROUND OF THE INVENTION [0002] Glaucoma is an eye condition in which the hydrostatic pressure within the eye is abnormally high, thereby resulting in damage to the optic nerve. There are many treatments for the glaucoma condition that involve lowering the intraocular pressure, either by means of medication or surgery. [0003] Medicinal treatments either decrease the rate at which aqueous humor is pumped into the eye or improve the outflow of aqueous humor from the eye. [0004] There are three primary surgical methods for treating glaucoma. Presently, none of them are a complete answer to the problem: [0005] a) Cyclodestructive procedures damage the ciliary body of the eye and decrease the rate of aqueous humor production. The main problem is the extremely ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61M5/00A61F9/007
CPCA61F9/00781A61M1/36A61M27/00
Inventor YABLONSKI, MICHAEL
Owner NOVARTIS AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap