EP0360063B1 - Dispositif pour ranger et examiner des lentilles de contact - Google Patents
Dispositif pour ranger et examiner des lentilles de contact Download PDFInfo
- Publication number
- EP0360063B1 EP0360063B1 EP89116263A EP89116263A EP0360063B1 EP 0360063 B1 EP0360063 B1 EP 0360063B1 EP 89116263 A EP89116263 A EP 89116263A EP 89116263 A EP89116263 A EP 89116263A EP 0360063 B1 EP0360063 B1 EP 0360063B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact lens
- contact lenses
- contact
- lens
- storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C11/005—Contact lens cases
Definitions
- the invention relates to a device defined in the preamble of claim 1.
- the known storage cases consist of a flat, opaque piece in which the recesses for the contact lenses are provided, which recesses are closed with a screw cap. Both hydrophilic and gas permeable contact lenses should be kept moist. When it dries out, a hydrophilic contact lens can be destroyed and a gas-permeable contact lens changes shape. The moist storage enables asepsis of the lens through antiseptic additives in the storage medium.
- the object of the invention is at the same time to enable the contact lens to be stored and examined in the storage container.
- the contact lens can be viewed or examined in transmitted light or with focal lighting.
- the contact lenses have to be examined for deposits, microorganisms, fungi, mechanical damage and age changes which adversely affect their wearing comfort and their optical properties and can lead to eye complications.
- organic and inorganic deposits form on the surfaces of the contact lenses and microorganisms and fungi are deposited.
- the organic deposits are components (proteins, mucins, lipids) of the tear fluid.
- the inorganic deposits (metal, iron, rust) come from work-related circumstances (air pollution, street dust, metal abrasion, etc.).
- the inorganic deposits also include those of calcium salts, which are also referred to as hard water deposits. They arise as a result of rinsing the contact lenses with tap water or by changing the pH of the tear fluid (medication, physiological influences).
- the microorganisms (bacteria, viruses) and fungi belong to the normal microflora of the conjunctiva, the conjunctival sac and the tear-evacuating pathways. This changes as soon as the balance of the microflora is disturbed, which happens due to the transmission of germs from hands, improper cleaning and disinfection, illness or metabolic disorders (diabetic) of the lens wearer or contact of the contact lenses with the environment. It is also known that the contact lenses are subject to changes, damage and aging to their material in the course of their use. The material changes (e.g. discoloration) are based on environmental influences (cigarette smoke, color vapors, cosmetics, discolouration of storage containers), aging and also normal cleaning measures. The damage (hairline cracks, abrasions, scratches, edge breakouts) are due to improper handling, drying out and cleaning of the lenses. These changes in the contact lenses cause a number of complications for the user or wearer.
- US-A-4 545 479 proposes a device in which contact lenses can be stored and observed. Since there is no liquid and no fixation, the soft and hard contact lenses are dried out and damaged during storage due to unintentional movements in their housings. Because of the lack of fixation, the daily observations of the contact lenses are made more difficult by the fact that the contact lenses as a whole can only be observed at a certain position of the entire device. With any other device position, the contact lenses move in an unforeseeable manner out of the observation field, following the effect of gravity.
- an external lighting source for example a punctiform light source or a window, against which the device for observing the contact lens is held, overlaps undesired contours with the image of the contact lens due to the optical structure of the device, which the significance of the observation worsen.
- the observer cannot move between the rubbers or mechanical Differentiate damage on the contact lens surfaces and the undesired contours, e.g. light reflections.
- GB-A-2 033 605 describes a device for centering contact lenses of different parameters in the position favorable for the optical examination.
- a mechanical lever mechanism moves the contact lens provided in a liquid back and forth several times until its concave inner surface comes to rest on an examination window.
- this contact takes place in a dry state, which under certain circumstances can lead to damage to the concave inner surface of the contact lens.
- the device is not used to store contact lenses.
- the object of the invention is to provide the contact lens user with an improved storage case and a simple examination device, the two devices being integrated in one piece.
- the wearer is therefore able to examine his contact lenses during storage. This prevents the contact lenses from drying out, which leads to destruction.
- the advantage of examining the contact lenses is that contamination, reflections and artifacts cannot occur.
- the device shown in FIG. 1 contains a body 1 made of optically transparent material, in which two cavities 2 are provided for storing one contact lens per cavity. Each cavity is closed watertight by means of a cover 3 made of transparent material. A thread is preferably provided on the cavity and cover, so that the cover is screwed into the cavity. Another detachable connection is readily applicable, e.g. Bayonet or plug connection.
- the bottom 21 of the cavity 2 is shaped like a paraboloid or a cone. As a result, a contact lens comes into contact with its convex side in such a way that there is only a line contact between it and the floor.
- the lid 3 can only be screwed so deep into the cavity 2 that it does not necessarily touch the contact lens, but it limits its freedom of movement. This and with the linear support in the cavity ensure that all parts of the contact lens, including the edge, can be viewed without gaps.
- a reservoir or container 4, 6 is provided.
- One container 4 is attached in the edge zone of the body 1 and has a large volume for an aqueous solution. Such solutions are known as contact lens storage media.
- the container 4 is in the immediate vicinity of the small chamber in which the contact lens is fixed.
- the container 4 is circular. It can also be elliptical if the body has this shape.
- the cavities 2, which are closed in a liquid-tight manner by the covers 3 and contain the contact lenses, are filled with liquid in the same way.
- another container 6 can be arranged in the central zone of the body 1, which is shown in dashed lines.
- the surrounding containers 4, 6 can communicate with the cavities 2 via communicating channels 7 and ensure that the contact lenses are adequately supplied with liquid.
- the lid 3 screwed or inserted into the cavities has grooves or cutouts on its side so that the liquid container 4 or 6 can communicate with the cavities 2 via the channels 5 or 7 even when the lid exits the upper channel 5 or 7 should affect.
- 1 shows a conical bevel in the lower part of the cover 3.
- FIG. 2 shows the same things of FIG. 1 and better reflects the spatial arrangement of the liquid containers 4, 6 and the communicating channels 5, 7.
- the edge zone of the body 1 shown is circular. However, it can also be elliptical or approximately square.
- Four cavities 2 can also be provided, which have corresponding channels to the containers 4, 6.
- the channels can also be arranged differently, as was shown in FIG. 2.
- FIGS. 1 and 2 show the liquid containers 4, 6 which can supply the contact lenses in the cavities 2 with sufficient liquid.
- New liquid can be brought into the container by directing the liquid into the cavities and through the channels 5, 7 or into a special filling opening 8 directly into the container.
- the old liquid is replaced by the new one in the same way.
- the storage fluid is usually exchanged daily.
- the contact lenses stored in the cavities 2 can be examined or observed. This is done in such a way that the observer holds the cover 3 against a light source and looks at the underside 9 of the body 1.
- the surface of the lid is matted, whereas the underside 9 of the body 1 is smooth and transparent.
- the refractive indices of the optical transparent material of body 1, cover 3 and liquid in the cavity 2 should be in a narrow range, so that no undesirable refractions of the light rays can occur.
- the matt finish of one surface should allow a uniformly illuminated background against which the contact lens can be viewed.
- the image of the contact lens viewed against the frosted background can be magnified, e.g. a converging lens 10 are enlarged, which is glued to the correspondingly shaped surface 9 at the points close to the floors 21.
- a converging lens 10 is drawn.
- the converging lens has a larger diameter than the contact lens to be considered, so that the entire surface of the contact lens can be examined. It is also possible to glue a single large magnifying lens or converging lens 10 onto the entire surface 9. It is only necessary to ensure that the contact lens stored in the cavity 2 has a certain distance from the converging lens 10. At a distance smaller than the focal length of the lens, a virtual, enlarged image of the contact lens is created. A distance between the single and double lens focal length creates a real, enlarged image of the contact lens.
- magnification optics or converging lens is arranged in or on the cover 3.
- the cover 3 is smooth and the underside 9 of the body 1 is matted.
- the contact lenses can also be used with so-called focal lighting, i.e. by means of a slit lamp.
- the present combined device contact lenses can be stored and examined at the same time.
- the device is inexpensive to manufacture and easy to use.
Landscapes
- Eyeglasses (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Eye Examination Apparatus (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Claims (7)
- Dispositif de conservation et d'examen pour verres de contact, chaque verre de contact étant placé dans une cavité (2), qui est obturée par un obturateur (3) en matériau optiquement transparent, caractérisé en ce que les cavités (2) et au moins un récipient à liquide (4,6) en communication avec ces dernières par l'intermédiaire de canaux (5,7) sont placés dans un corps (1) en matériau optiquement transparent, la base (21) de chacune des cavités (2) présentant une forme particulière pour la fixation du verre de contact par liaison active avec l'obturateur (3) inséré dans la cavité (2) de façon à ce que le verre de contact maintenu dans sa position de conservation soit observable sur l'ensemble de sa surface.
- Dispositif selon la revendication 1, caractérisé en ce qu'un récipient à liquide (4) est placé dans la zone du corps (1) voisine des parois pour l'alimentation des verres de contact prévus dans les cavités (2) en liquide de conservation.
- Dispositif selon la revendication 1, caractérisé en ce qu'un autre récipient à liquide (6) est placé dans la zone centrale du corps (1) pour l'alimentation des verres de contact prévus dans les cavités (2) en liquide de conservation.
- Dispositif selon la revendication 1, caractérisé en ce que deux récipients à liquide (4,6) sont placés dans le corps (1) pour l'alimentation des verres de contact prévus dans les cavités (2) en liquide de conservation.
- Dispositif selon la revendication 1, caractérisé en ce que pour l'examen des verres de contact logés dans la cavité (2), l'obturateur (3) a une surface mate et la surface de base (9) du corps (1) est lisse et transparente.
- Dispositif selon la revendication 5, caractérisé en ce que l'obturateur (3) a une surface mate et la surface de base (9) du corps (1) est lisse et contient au moins une optique d'agrandissement (10).
- Dispositif selon la revendication 6, caractérisé en ce que la surface de base (9) du corps (1) est lisse et formée de façon appropriée aux endroits prévus pour la réception d'une lentille convergente (10), lesquels endroits sont situés le plus près possible de la base (21) de la cavité (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89116263T ATE92283T1 (de) | 1988-09-07 | 1989-09-02 | Aufbewahrungs- und untersuchungsvorrichtung fuer kontaktlinsen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3351/88 | 1988-09-07 | ||
CH3351/88A CH676656A5 (fr) | 1988-09-07 | 1988-09-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0360063A1 EP0360063A1 (fr) | 1990-03-28 |
EP0360063B1 true EP0360063B1 (fr) | 1993-08-04 |
Family
ID=4254098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89116263A Expired - Lifetime EP0360063B1 (fr) | 1988-09-07 | 1989-09-02 | Dispositif pour ranger et examiner des lentilles de contact |
Country Status (7)
Country | Link |
---|---|
US (1) | US5099987A (fr) |
EP (1) | EP0360063B1 (fr) |
JP (1) | JPH03500977A (fr) |
AT (1) | ATE92283T1 (fr) |
CH (1) | CH676656A5 (fr) |
DE (1) | DE58905126D1 (fr) |
WO (1) | WO1990002496A1 (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5246259A (en) * | 1992-02-21 | 1993-09-21 | Johann Hellenkamp | Applicator device for positioning a contact lens on the human eye |
GR1002574B (el) * | 1992-12-21 | 1997-02-06 | Johnson & Johnson Vision Products Inc. | Παλλετα για την υποδοχη και μεταφορα δοχειων οφθαλμικων φακων. |
US5640464A (en) * | 1994-05-31 | 1997-06-17 | Johnson & Johnson Vision Products, Inc. | Method and system for inspecting packages |
US5814134A (en) * | 1994-06-10 | 1998-09-29 | Johnson & Johnson Vision Products, Inc. | Apparatus and method for degassing deionized water for inspection and packaging |
US5578331A (en) * | 1994-06-10 | 1996-11-26 | Vision Products, Inc. | Automated apparatus for preparing contact lenses for inspection and packaging |
US5649410A (en) * | 1994-06-10 | 1997-07-22 | Johnson & Johnson Vision Products, Inc. | Post-hydration method and apparatus for transporting, inspecting and packaging contact lenses |
ATE433100T1 (de) | 1998-08-17 | 2009-06-15 | Novartis Ag | Prüfmodul zum prüfen von optischen teilen auf fehler |
DE29901791U1 (de) * | 1999-02-02 | 2000-07-06 | Novartis Ag | Linsenmesseinrichtung |
US6092646A (en) * | 1999-06-15 | 2000-07-25 | Glazier; Alan N. | Magnifying contact lens storage unit |
CA2322907A1 (fr) * | 1999-10-13 | 2001-04-13 | Johnson & Johnson Vision Care, Inc. | Emballage primaire pour verres de contact |
USD458023S1 (en) | 1999-10-13 | 2002-06-04 | Johnson & Johnson Vision Care, Inc. | Contact lens container |
US6368522B1 (en) | 2000-01-03 | 2002-04-09 | Johnson & Johnson Vision Care, Inc. | Mold for forming a contact lens and method of preventing formation of small strands of contact lens material during contact lens manufacture |
US6765661B2 (en) | 2001-03-09 | 2004-07-20 | Novartis Ag | Lens inspection |
JP4260028B2 (ja) * | 2002-04-12 | 2009-04-30 | 株式会社メニコン | コンタクトレンズユーザのサポートシステムおよびサポート方法 |
US20050045495A1 (en) * | 2003-08-25 | 2005-03-03 | Dalsing Troy A. | Reusable container for contact lenses and other materials |
US7347466B1 (en) * | 2005-02-14 | 2008-03-25 | Michael Alan Feldman | Multipurpose contact lens accessory |
AU2007336715B2 (en) * | 2006-12-21 | 2012-10-11 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Carousel having liquid filled cells for optical testing of ophthalmic lenses |
US8158961B2 (en) * | 2009-07-31 | 2012-04-17 | Sciconsult, Inc. | Ophthalmic lens case equipped with an ultraviolet light source |
CN102502091A (zh) * | 2011-10-27 | 2012-06-20 | 广州科甫眼镜有限公司 | 具有放大作用的透明接触镜贮存和摆放器具及其制备方法 |
US11974642B2 (en) * | 2018-11-09 | 2024-05-07 | Alcon Inc. | Lens care container |
US11708209B2 (en) * | 2021-11-05 | 2023-07-25 | Johnson & Johnson Vision Care, Inc. | Touchless contact lens packages and methods of handling |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3695280A (en) * | 1971-01-15 | 1972-10-03 | Barnes Hind Pharm Inc | Contact lens case |
US4392569A (en) * | 1979-06-06 | 1983-07-12 | Shoup Leo E | Soft contact lens asepticizing case |
CA1170825A (fr) * | 1981-02-25 | 1984-07-17 | Warner Lambert Technologies Inc. | Support de verification de lentilles |
US4415076A (en) * | 1981-11-23 | 1983-11-15 | Campbell Charles E | Soft contact lens container |
GB8316567D0 (en) * | 1983-06-17 | 1983-07-20 | Contactasol Ltd | Measurement of contact lenses |
US4623249A (en) * | 1983-10-14 | 1986-11-18 | Grant Alan H | Container for an optical element |
US4545479A (en) * | 1984-08-13 | 1985-10-08 | Figari Alberto A | Contact lens carrying case with magnifying aid apparatus |
US4782946A (en) * | 1987-09-17 | 1988-11-08 | Allergan, Inc. | Soft contact lens hydration device and kit |
-
1988
- 1988-09-07 CH CH3351/88A patent/CH676656A5/de not_active IP Right Cessation
-
1989
- 1989-09-01 JP JP1508933A patent/JPH03500977A/ja active Pending
- 1989-09-01 WO PCT/CH1989/000160 patent/WO1990002496A1/fr unknown
- 1989-09-01 US US07/499,361 patent/US5099987A/en not_active Expired - Fee Related
- 1989-09-02 AT AT89116263T patent/ATE92283T1/de not_active IP Right Cessation
- 1989-09-02 EP EP89116263A patent/EP0360063B1/fr not_active Expired - Lifetime
- 1989-09-02 DE DE8989116263T patent/DE58905126D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0360063A1 (fr) | 1990-03-28 |
US5099987A (en) | 1992-03-31 |
JPH03500977A (ja) | 1991-03-07 |
DE58905126D1 (de) | 1993-09-09 |
CH676656A5 (fr) | 1991-02-28 |
ATE92283T1 (de) | 1993-08-15 |
WO1990002496A1 (fr) | 1990-03-22 |
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