Patent EP0102747A1 successfully refreshed from Google Patents.
EP0102747A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Ocular pressure relief device
Assignee: Individual
•
Filing: 1983-07-28
•
Granted: —
•
Expires: 2003-07-28
Abstract
Abstract A prosthetic device for the relief of high intraocular pressures associated with glaucoma is shown. The device includes a limp reservoir adapted to be worn against or within the eye wall, a conduit leading from the reservoir to the anterior chamber of the eye, and means for communicating the reservoir with liquid-receptive tissue. Unidirectional flow means, such as a check valve, is employed to prevent back-flow of liquid into the anterior chamber. When the reservoir is periodically compressed, aqueous humor collected in the reservoir is expelled into liquid-receptive tissue where it is absorbed or is passed to the venous system.
Inventors
- 👤 Thomas C. White
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 17:01
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/00781; A61F2250/00; A61F2250/0003
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
89 words
A device for controllably releasing aqueous humor from the anterior chamber of the eye, comprising a limp, expandable, compressible reservoir, a proximal conduit having one end adapted to extend through a wall of the eye and into the anterior chamber and communicating at its other end with the reservoir, unidirectional flow means restraining liquid flow within the proximal conduit to a direction toward the reservoir, and means for communicating the reservoir with liquid-receptive tissue, whereby aqueous humor collected in the reservoir may be expelled under pressure into liquid-receptive tissue.
Claim 2
Independent Claim
89 words
A device for controllably releasing aqueous humor from the anterior chamber of the eye, comprising a limp, expandable, compressible reservoir, a proximal conduit having one end adapted to extend through a wall of the eye and into the anterior chamber and communicating at its other end with the reservoir, unidirectional flow means restraining liquid flow within the proximal conduit to a direction toward the reservoir, and means for communicating the reservoir with liquid-receptive tissue, whereby aqueous humor collected in the reservoir may be expelled under pressure into liquid-receptive tissue.
Claim 3
Dependent Claim
40 words
2: The device of claim 1 wherein said unidirectional flow means comprises a pressure relief valve in the proximal conduit for permitting said unidirectional flow of aqueous humor when the pressure differential across the valve increases to a predetermined level.
Claim 4
Dependent Claim
38 words
The device of claim 1 wherein said means for communicating the reservoir with liquid-receptive tissue comprises a distal conduit communicating at one end with the reservoir and its other end being adapted for communication with liquid receptive tissue.
Claim 5
Dependent Claim
41 words
The device of claim 1 including a mounting plate carried by the reservoir and curved to fit snugly against or within the eye wall, with a surface contact area greater than the surface contact area between the reservoir and the plate.
Claim 6
Dependent Claim
22 words
The device of claim 3 wherein said distal conduit includes check valve means.restraining liquid flow to a direction away from the reservoir.
Claim 7
Dependent Claim
27 words
The device of claim 1 wherein said proximal conduit comprises a length of tubing and wherein said unidirectional flow means comprises a wick carried within the tubing.
Claim 8
Independent Claim
95 words
A device for controllably releasing aqueous humor from the eye which comprises means defining a proximal conduit having one end surgically insertable through the wall of an eye into the anterior chamber and including means preventing back-flow of liquid into the anterior chamber, means defining a distal conduit having one end surgically insertable into liquid-receptive tissue of or adjacent the eye, and a deformable, limp reservoir sealably connected to the other ends of the conduits, whereby compression of the reservoir forces aqueous humor within the reservoir outwardly of the second conduit and into said tissue.
Claim 9
Independent Claim
95 words
A device for controllably releasing aqueous humor from the eye which comprises means defining a proximal conduit having one end surgically insertable through the wall of an eye into the anterior chamber and including means preventing back-flow of liquid into the anterior chamber, means defining a distal conduit having one end surgically insertable into liquid-receptive tissue of or adjacent the eye, and a deformable, limp reservoir sealably connected to the other ends of the conduits, whereby compression of the reservoir forces aqueous humor within the reservoir outwardly of the second conduit and into said tissue.
References Cited (Backward Citations)
US2969066A
Cited
US3109429A
Cited
US3159161A
Cited
US3527226A
Cited
US3788327A
Cited
US4240434A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.