Patent US4758237A successfully refreshed from Google Patents.
US4758237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for applying liquid to the corneal surface of the eye
Assignee: PUDER ZEEV
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Filing: 1987-01-20
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Granted: 1988-07-19
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Expires: 2007-01-20
Abstract
Abstract A device for applying a liquid to an eye has a liquid accommodating chamber with an opening limited by an edge so that the user's eye can be placed into contact with the edge with an eye surface facing toward the interior of the chamber, and a liquid circulating unit which forcedly circulates the liquid in the chamber to move the liquid in a direction which is transverse to an axis of the opening and along the eye surface.
Inventors
- 👤 Herman Sacks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:24
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/0008
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
209 words
A device for applying liquid to an eye, comprising means forming a liquid accommodating chamber, said liquid accommodating chamber having an opening having a peripheral seal means into which an eye ball is placed which further has a vertical axis, said liquid accommodating chamber also having an edge means which limits the size of said opening, so that when a user places the eye on said periperal seal means said opening is sealed from outside and the eye corneal surface faces and extends toward the interior of said chamber; means forcedly circulating a liquid through said chamber in a direction transverse to said axis of said opening, so that when the user's eye is placed on said edge the liquid is forcedly moved by said circulating means horizontally along the eye corneal surface of the eye; means forming a liquid reservoir, said circulating means being formed to supply the liquid from said liquid resevoir into said liquid accommodating chamber and to withdraw the liquid from said liquid accommodating chamber to said reservoir after having been applied to the eye, said circulating means including an electric motor, an electric battery connected with the latter to provide power supply, and an impeller rotatable by said electric motor in said liquid reservoir.
Claim 2
Independent Claim
209 words
A device for applying liquid to an eye, comprising means forming a liquid accommodating chamber, said liquid accommodating chamber having an opening having a peripheral seal means into which an eye ball is placed which further has a vertical axis, said liquid accommodating chamber also having an edge means which limits the size of said opening, so that when a user places the eye on said periperal seal means said opening is sealed from outside and the eye corneal surface faces and extends toward the interior of said chamber; means forcedly circulating a liquid through said chamber in a direction transverse to said axis of said opening, so that when the user's eye is placed on said edge the liquid is forcedly moved by said circulating means horizontally along the eye corneal surface of the eye; means forming a liquid reservoir, said circulating means being formed to supply the liquid from said liquid resevoir into said liquid accommodating chamber and to withdraw the liquid from said liquid accommodating chamber to said reservoir after having been applied to the eye, said circulating means including an electric motor, an electric battery connected with the latter to provide power supply, and an impeller rotatable by said electric motor in said liquid reservoir.
Claim 3
Dependent Claim
82 words
A device for applying liquid to an eye as defined in claim 1, wherein said opening of said liquid accommodating chamber is elongated in an elongation direction, said circulating means being formed so that the liquid is forcedly moved by said circulating means in said accommodating chamber in said elongation direction, so that when the user's eye is placed on said edge the liquid is forcedly moved along the eye surface in direction from one eye corner to the other eye corner.
Claim 4
Dependent Claim
44 words
A device for applying liquid to an eye as defined in claim 1, wherein said means forming a liquid accommodating chamber is removably attachable to said liquid reservoir forming means so as to expose said liquid reservoir for refilling the same with the liquid.
Claim 5
Dependent Claim
44 words
A device for applying liquid to an eye as defined in claim 1; and further comprising means forming a motor compartment located adjacent to said liquid reservoir and liquid-tightly separated therefrom, said electric motor and said electric battery being located in said motor compartment.
Claim 6
Dependent Claim
77 words
A device for applying a liquid to an eye as defined in claim 4; and further comprising a parition separating said motor compartment from said liquid reservoir, said electric motor being provided with a first magnetic member rotatable by said motor and located in said motor compartment, said impeller being provided with a second magnetic member located in said liquid reservoir and inducable in rotation together with said impeller by said first magnetic member through said partition.
Claim 7
Dependent Claim
56 words
A device for applying a liquid: to an eye as defined in claim 5, wherein said electric motor has a rotatable shaft, said first magnetic member being mounted on said shaft and including a plurality of magnetic segments, said second magnetic member being fixedly connected with said impeller and also including a plurality of magnetic segments.
Claim 8
Dependent Claim
35 words
A device for applying liquid to an eye as defined in claim 1; and further comprising means for filtering the liquid after its use in said liquid accommodating chamber and before entering said liquid reservoir.
Claim 9
Dependent Claim
56 words
A device for applying liquid to an eye as defined in claim 7, wherein said circulating means includes a withdrawing passage communicating said liquid accommodating chamber with said liquid reservoir and arranged for withdrawing the liquid after use from the former to the latter, said filtering means including a filter element arranged in said withdrawing passage.
Claim 10
Dependent Claim
28 words
A device for applying liquid to an eye as defined in claim 8, wherein said filter element is removably attached to said means forming a liquid accommodating chamber.
Claim 11
Dependent Claim
35 words
A device for applying a liquid to an eye as defined in claim 1, wherein said liquid reservoir forming means is provide with an observation window for determining visually a liquid level in said container.
Claim 12
Dependent Claim
39 words
A device for applying a liquid to an eye as defined in claim 1; and further comprising means for softening a contact of the user's eye with said edge and including a substantially soft member fittable on said edge.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-19 | 1992-01-18 | 1992-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-19 | 1996-01-18 | 1996-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-19 | 2000-01-18 | 2000-07-19 | $7700.00 | Window Closed / Lapsed |