EP2095735B1 - Contact lens case for storing and cleaning - Google Patents
Contact lens case for storing and cleaning Download PDFInfo
- Publication number
- EP2095735B1 EP2095735B1 EP09002756A EP09002756A EP2095735B1 EP 2095735 B1 EP2095735 B1 EP 2095735B1 EP 09002756 A EP09002756 A EP 09002756A EP 09002756 A EP09002756 A EP 09002756A EP 2095735 B1 EP2095735 B1 EP 2095735B1
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- EP
- European Patent Office
- Prior art keywords
- contact lens
- chamber
- cleaning
- cleaning case
- chambers
- 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.)
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- 238000004140 cleaning Methods 0.000 title claims abstract description 65
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 238000003860 storage Methods 0.000 claims description 38
- 239000012528 membrane Substances 0.000 claims description 37
- 238000007789 sealing Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 description 85
- 238000005086 pumping Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 10
- 210000004087 cornea Anatomy 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- 238000007906 compression Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002354 daily effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 210000000795 conjunctiva Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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 contact lens storage and cleaning container formed from two contact lens chambers for each contact lens and a container for receiving the cleaning liquid according to the preamble of claim 1.
- Contact lenses are one of the most widely used visual aids in industrialized countries. They replaced the mostly not so aesthetic glasses by the cornea directly lie, separated only by a thin tear film. Not to be forgotten are the people who, although they have no visual difficulties, but want to change their eye color. Again, this is possible with the help of contact lenses.
- contact lenses There are several types of contact lenses, including the material.
- the initially popular hard contact lenses were replaced by contact lenses, which consist of a flexible, water-storing and air-permeable material. This soft material is many times more pleasing to the eye than the original, harder material. Also, the irritation-free wearing time of the contact lenses has increased very much.
- the daily contact lenses should only be worn for one day and then disposed of
- the monthly contact lenses can be used for up to 30 days and the contact lenses for up to one year. Since the day contact lenses are only worn for one day, it is not necessary to take care of these contact lenses because new contact lenses are used every day.
- the contact lenses which are worn for a long time.
- the tear fluid contains a wealth of other substances that contaminate the contact lenses. So here are the proteins especially to highlight. These accumulate during the wearing time on the resting on the cornea contact lens. This protein attachment provides a good breeding ground for bacteria that can cause infections of the cornea and conjunctiva of the eyes.
- the 2-step plepling system removes protein deposits on the contact lens by hydrogen peroxide, which is split into water and oxygen by a chemical reaction.
- Hydro peroxide H 2 O 2
- Contact with hydrogen peroxide directly with the cornea would lead to severe irritation of the cornea and could even lead to permanent turbidity of the cornea.
- the 1-step care system contains several chemical components that both care for the contact lens and the eyes does not irritate in direct contact.
- the contact lenses are placed in the corresponding contact lens containers for storage and care (usually before bedtime).
- the storage liquid not only leads to the disinfection of the contact lens, but also prevents the contact lens from drying out, which would shrink and dry out within a few hours in a dry environment.
- the following invention is intended to simplify the storage and cleaning of contact lenses by the one-step care system (All-In-One).
- Wearing contact lenses requires their care and cleaning both for the preservation of the contact lenses and as well as for hygienic constraints out. This is sometimes a bit cumbersome because you have to carry both a storage and cleaning container for the contact lenses, as well as a liquid dispenser for the care liquid with it, which is cumbersome especially when traveling.
- the contact lens container usually houses here each a separate contact lens chamber for the right and left contact lens. After inserting the contact lenses in the associated contact lens chambers, the latter are filled with care liquid and sealed with a lid.
- the main solution described is a housing which, in addition to the two recessed contact lens chambers for storing the contact lenses, also has two further contact lens chambers which have a connection to a liquid reservoir integrated in the housing. These 2 additional contact lens chambers are each provided with a pipette, which are intended to transport the cleaning liquid into the contact lens chambers.
- an external "filler” is described, which protrudes from the housing and practically an extension of the Represents liquid reservoir.
- Fortier (US Design 390356) describes a cylindrical structure which has a contact lens chamber for each contact lens at both ends. The center of this structure appears to be the liquid reservoir which, by compression, fills the two contact lens chambers with liquid.
- FR 2 835 751 A1 also a container with liquid reservoir and pump button, wherein the pumping operation is carried out with open chamber lids. A pressure equalization of the contact lens chambers is not provided.
- a disadvantage of the solutions mentioned here is that the pumping process is severely hampered by the existing in the closed contact lens chamber back pressure. This causes the known devices can be filled only with the chamber lid open with a defined amount of liquid.
- the US patent US 4,637,919 to Ryder et al. discloses a disinfection ratio for contact lenses, in which a hydrophobic semipermeable membrane is provided to allow the gas forming during the disinfection process to escape from the container without the disinfectant liquid being able to escape through this membrane.
- This membrane is in this case arranged in a corresponding gas escape hole, has pores of about 0.2 microns in size and is fixed in the plastic housing spanning the bore.
- this tightly clamped in the plastic housing membrane is not suitable to counteract a pressure increase in the housing of the disinfection container by deformation, but should let escape at correspondingly increasing gas pressure in the container of this gas due to its micropores.
- Object of the invention against this background is to improve a device of the type mentioned above so that their handling, especially when filling the contact lens chambers with disinfecting cleaning liquid is facilitated, the contact lens chambers should be filled even when the lid is closed.
- contact lens chambers are closable with detachable chamber lids, in which by means of a flexible cover membrane to the contact lens chamber waterdicut completed a compressible cavity is arranged.
- the contact lens chambers are closed after inserting the contact lenses by a lid.
- the contact lens chambers In order to prevent liquid leakage from the contact lens chambers during transport of the device, the contact lens chambers must be sealed watertight. This tight seal must also persist in the overpressure generated by the pumping process in the contact lens chambers. This is achieved by the serving as a compression zone in the lid cavity, which is separated by a flexible membrane with respect to the lens receiving the remaining contact lens chamber.
- An advantageous design provides in this case that the cover membrane by a compressible cavity arranged spring body is biased against the contact lens chamber. In this way, the pressure required by the pumping process for the filling of the contact lens chambers pressure on the spring body used is adjustable.
- a further advantageous design provides that the cover membrane has a voltage applied to the filling of the contact lens chamber on the chamber cover control section, which is recognizable by a viewing window in the chamber lid.
- the aim here is to make it clear in this way whether the cleaning of the lenses can actually take place in the desired shape.
- the control portion of the lid membrane comes in a defined filling of the contact lens chamber visible to the viewing window in the lid and thus signals the user that the contact lens chamber sufficiently filled and so the contact lens is completely wetted with cleaning liquid.
- This function can also indicate the expiration of the period of use of the device, since it must be assumed in the absence of the desired display in the viewing window that not enough cleaning fluid in the container is present and this must therefore be replaced.
- control portion of the cover membrane as a chamber lid facing recess in the lid membrane may be formed.
- the control section has a clear shape and thus can be positioned accurately in a small viewing window.
- the deformation costs of the cover membrane and the distance to be traced to the viewing window can be reduced and defined.
- a further advantageous embodiment of the invention provides that the liquid reservoir is formed from an upper shell, in which at least the contact lens chambers are arranged, as well as from a tightly connected to the upper shell bottom shell, wherein the enclosed space is filled with cleaning liquid.
- the upper shell also contains the required pump, so that the lower shell is only cup-shaped form. In this case, it is provided to fill the entire interior between the shells with cleaning fluid so as to be able to absorb a maximum of fluid and thus be able to improve the service life.
- a flexible sealing membrane is approximately flat and is connected to the lower shell, that it seals the interior of the liquid reservoir against pressure equalization openings in the lower shell. Accordingly, during the pumping process, liquid is withdrawn from the liquid reservoir, resulting in a negative pressure, which is, however, compensated by a deformation of the sealing membrane. This membrane is thus increasingly deformed over the life of the device towards the upper shell, with air flowing through the pressure equalization openings in the lower shell, which is separated by the elastic sealing membrane of the liquid reservoir. In this way, a safe pumping process can be ensured at all times.
- An advantageous embodiment of the invention provides that the flexible sealing membrane lying approximately flat on the lower shell is arranged peripherally in the connection region between the upper shell and the lower shell and seals this connection region.
- the sealing membrane is thus placed as an intermediate layer between the upper and lower shell and fixed by their connection in the peripheral connection region, for example, a circumferential connector of the shells.
- the thus clamped between the shells sealing membrane causes this in addition due to their elasticity a seal in this connection area. This is necessary to safely avoid leakage of the cleaning fluid at this interface.
- the chamber lid can hereby be connected on one side articulated to the upper shell and be closed and reopened via a latching mechanism.
- the aim here is to make it as easy as possible to open and close the lid.
- the hinged guide on the housing of the container ensures that the lid can not be lost as loose parts and at the same time be safely guided into the closed position, for example, without tilting as small components in the chamber opening.
- a locking mechanism also has the advantage that the closure is achieved by simple pressure in the latching position. Conveniently causes a later renewed pressure on the lid, the triggering of the latching mechanism and thus the opening of the lid.
- the closed chamber lid are also expediently secured against accidental opening by laterally hinged to the upper shell securing bracket.
- these brackets are folded over the lid and locked, so that unintentional opening of the lid by pressure is not possible.
- the liquid inflow from the liquid reservoir into the two contact lens chambers takes place via at least one one-way valve which establishes a connection between the pump and the two contact lens chambers.
- the contents of the liquid reservoir should contain liquid for several weeks.
- the user is spared filling the care liquid from another container into the contact lens chambers by hand; the filling is done simply by pressing a button.
- the shape of the device should be practical, handy and transportable. As a meaningful design is considered the illustrated wafer ellipsoid, about 25 mm thick and 80 mm in diameter.
- the pump 7 is an integral part of the contact lens storage and cleaning container and is arranged together with the 2 contact lens chambers 1 in the upper shell 33 of the device.
- the two contact lens chambers 1 are each sealed with a hinged lid 10.
- this chamber lid 10 is mounted centrally on the upper shell by means of a hinge.
- a securing bracket 37 is provided in the illustrated design, which spans the chamber lid 10 and engages positively with an end recess in a projection on the chamber lid 10.
- the lower shell 34 of the liquid reservoir 2 abuts an impermeable, elastic sealing membrane 35, which surrounds the cleaning liquid with respect to pressure equalization openings 36 in the lower shell 34 and which adjusts itself to the volume of cleaning liquid changing as a result of the pumping process and separates it from the air flowing through the pressure equalization ports 36 into the contact lens storage and cleaning tank.
- the lower shell 34 of the contact lens storage and cleaning container consists of two layers: the hard open shell on the one hand and the flexible sealing membrane 35 on the other.
- the sealing membrane finally comes to rest on the inside of the upper shell 33 of the contact lens storage and cleaning container.
- the free interior of the contact lens storage and cleaning container would be filled with air.
- the contact lens chambers 1 are connected to the liquid reservoir 2 either via a common or each contact lens chamber via a separate one-way valve 20.
- a pumping device 7 liquid is conveyed from the liquid reservoir 2 into the contact lens chambers 1.
- the pumping device 7 consists of a pump button which, when actuated by the user, shifts the associated piston into the associated cylinder, thereby conveying the cleaning fluid out of the cylinder interior.
- the cleaning liquid from the cylinder interior escapes into the contact lens chambers 1 via corresponding connection channels.
- a return of the pump piston to its original position takes place either by a return spring 5 placed in the cylinder interior or via an elastic connection of the pump button to the surrounding housing (for example a rubber compound).
- the chamber lids 10 are basically constructed similar to the liquid reservoir, namely partly rigid (e.g., plastic) and partly flexible (e.g., rubber).
- a flexible lid membrane 15 creates a cavity 18 within the chamber lid 10.
- the cover membrane 15 expands; Air from the cavity 18 is forced out through the small openings in the top of the chamber lid 10.
- the lid membrane 15 takes due to their elasticity and / or due to the restoring force of the spring their original position again In and outside air is taken up by the lid openings in the cavity 18 again.
- the chamber lids 10 of the contact lens chambers are fully or partially transparent so that the user can control the level of liquid in the contact lens chambers after filling them.
- the cover membrane 15 which moves during filling to this window 31 has a control section 32 which makes the degree of filling of the contact lens chambers 1 easily recognizable.
- This control section may expediently be designed as a recess pointing to the chamber cover 10 in the cover membrane 15, which firstly shows itself on the window during the deformation of the membrane and thus indicates the filling of the contact lens chamber.
- the invention is directed to contact lens wearers who use the 1-stage care systems for the care and storage of their contact lenses.
- the invention here consists of the integration of a contact lens storage container in a liquid reservoir.
- the liquid reservoir and the contact lens container are connected directly to each other and separated from each other only by a controllable valve.
- the filling of the contact lens chambers 1 with liquid from the liquid reservoir 2 is effected simply by actuating a pump button 7 built into the device, which leads to the opening of the separating valve 20, which connects the liquid reservoir 2 with the contact lens chambers 1 due to an increase in pressure. Liquid from the liquid reservoir 2 can thereby irreversibly get into the contact lens chambers 1.
- the peculiarity of this invention is that the contact lens wearer for storage and care of his contact lenses 9 requires only a single device that is still very handy and easy to transport. Filling up the contact lens chambers at the touch of a button is easier and more comfortable than previous methods. A "forgetting" of a component, the small storage container or the cleaning liquid container, is no longer possible, because it is now a two-component device.
- the device is due to its flat shape and small size suitable to be carried always and everywhere (eg in the pocket, during sports, in the plane), which the user, compared to the previous methods of contact lens care, an increased level of comfort and independence offers.
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- Eyeglasses (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
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Abstract
Description
Die Erfindung betrifft einen Kontaktlinsen-Aufbewahrungs- und -Reinigungsbehälter gebildet aus zwei Kontaktlinsenkammern für jeweils eine Kontaktlinse sowie einem Behältnis zur Aufnahme der Reinigungsflüssigkeit gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a contact lens storage and cleaning container formed from two contact lens chambers for each contact lens and a container for receiving the cleaning liquid according to the preamble of claim 1.
Kontaktlinsen sind eines der am meisten verwendeten Sehhilfsmittel in den industrialisierten Ländern. Sie ersetzten die meist nicht so ästhetische Brille indem sie der Augenhornhaut direkt anliegen, nur durch einen dünnen Tränenfilm von dieser getrennt. Nicht zu vergessen wären auch die Menschen, die zwar keine Sehschwierigkeiten haben, jedoch ihre Augenfarbe verändern möchten. Auch dies ist mithilfe von Kontaktlinsen möglich.Contact lenses are one of the most widely used visual aids in industrialized countries. They replaced the mostly not so aesthetic glasses by the cornea directly lie, separated only by a thin tear film. Not to be forgotten are the people who, although they have no visual difficulties, but want to change their eye color. Again, this is possible with the help of contact lenses.
Es gibt mehrere Arten von Kontaktlinsen, auch was das Material anbetrifft. Die anfänglich beliebten harten Kontaktlinsen wurden von Kontaktlinsen verdrängt, die aus einem flexiblen, wasserspeichernden und luftdurchlässigen Material bestehen. Dieses weiche Material ist um ein Vielfaches angenehmer für das Auge als das ursprüngliche, härtere Material. Auch die reizfreie Tragezeit der Kontaktlinsen ist dadurch sehr gestiegen.There are several types of contact lenses, including the material. The initially popular hard contact lenses were replaced by contact lenses, which consist of a flexible, water-storing and air-permeable material. This soft material is many times more pleasing to the eye than the original, harder material. Also, the irritation-free wearing time of the contact lenses has increased very much.
Es gibt als verschiedene Kontaktlinsentypen Tages-, Monats- und Jahreskontaktlinsen. Die Tageskontaktlinsen sollten nur einen Tag lang getragen und dann entsorgt werden, die Monatskontaktlinsen können 30 Tage und die Jahresontaktlinsen bis zu einem Jahr lang genutzt werden. Da die Tageskontaktlinsen nur einen Tag lang getragen werden, ist eine Pflege dieser Kontaktlinsen nicht notwendig, da jeden Tag neue Kontaktlinsen eingesetzt werden.There are different types of contact lenses daily, monthly and annual contact lenses. The daily contact lenses should only be worn for one day and then disposed of The monthly contact lenses can be used for up to 30 days and the contact lenses for up to one year. Since the day contact lenses are only worn for one day, it is not necessary to take care of these contact lenses because new contact lenses are used every day.
Anders sieht es aus bei den Kontaktlinsen, die längere Zeit getragen werden. Die Tränenflüssigkeit enthält neben Wasser und Salzen eine Fülle weiterer Substanzen, die zu einer Verunreinigung der Kontaktlinsen führen. So sind hier ganz besonders die Proteine hervorzuheben. Diese lagern sich im Laufe der Tragezeit auf die auf der Hornhaut anliegende Kontaktlinse an. Diese Proteinanlagerung bietet einen guten Nährboden für Bakterien, die Infektionen der Horn- und Bindehaut der Augen verursachen können.The situation is different with the contact lenses, which are worn for a long time. In addition to water and salts, the tear fluid contains a wealth of other substances that contaminate the contact lenses. So here are the proteins especially to highlight. These accumulate during the wearing time on the resting on the cornea contact lens. This protein attachment provides a good breeding ground for bacteria that can cause infections of the cornea and conjunctiva of the eyes.
Es gibt hauptsächlich zwei Pflegesysteme für Kontaktlinsen: Das Peroxyd-System (2-Stufen-Plegesystem auf Wasserstoffperoxydbasis) und das All-In-One-Pflegesystem (1-Stufen-Pflegesystem).There are mainly two care systems for contact lenses: the peroxide system (2-stage hydrogen peroxide-based ply system) and the all-in-one care system (1-stage care system).
Das 2-Stufen-Plegesystem entfernt Proteinablagerungen auf der Kontaktlinse durch Wasserstoffperoxyd, das durch eine chemische Reaktion in Wasser und Sauerstoff gespalten wird. Ein Kontakt von Wasserstoffperoxyd (H2O2) direkt mit der Hornhaut würde zu schweren Reizungen der Hornhaut führen und könnte sogar eine permanente Trübung dieser zur Folge haben.The 2-step plepling system removes protein deposits on the contact lens by hydrogen peroxide, which is split into water and oxygen by a chemical reaction. Contact with hydrogen peroxide (H 2 O 2 ) directly with the cornea would lead to severe irritation of the cornea and could even lead to permanent turbidity of the cornea.
Das 1-Stufen-Pflegesystem enthält mehrere chemische Komponenten, die sowohl eine Pflege der Kontaktlinse bewirken als auch die Augen bei direktem Kontakt nicht reizt.The 1-step care system contains several chemical components that both care for the contact lens and the eyes does not irritate in direct contact.
Für gewöhnlich werden die Kontaktlinsen zur Aufbewahrung und zur Pflege in die dazugehörigen Kontaktlinsenbehälter gelegt (meist vor der Nachtruhe). Die Aufbewahrungsflüssigkeit führt nicht nur zur Desinfektion der Kontaktlinse, sondern verhindert auch ein Austrocknen der Kontaktlinse, die in einer trockenen Umgebung innerhalb weniger Stunden schrumpfen und austrocknen würde.Usually the contact lenses are placed in the corresponding contact lens containers for storage and care (usually before bedtime). The storage liquid not only leads to the disinfection of the contact lens, but also prevents the contact lens from drying out, which would shrink and dry out within a few hours in a dry environment.
Die folgende Erfindung soll die Aufbewahrung und die Reinigung von Kontaktlinsen durch das 1-Stufen-Pflegesystem (All-In-One) vereinfachen.The following invention is intended to simplify the storage and cleaning of contact lenses by the one-step care system (All-In-One).
Das Tragen von Kontaktlinsen erfordert deren Pflege und Reinigung sowohl zum Erhalt der Kontaktlinsen und als auch aus hygienischen Zwängen heraus. Dies ist mitunter ein wenig umständlich, da man sowohl einen Aufbewahrungs- und Reinigungsbehälter für die Kontaktlinsen, als auch einen Flüssigkeitsspender für die Pflegeflüssigkeit mit sich führen muss, was insbesondere auf Reisen beschwerlich ist.Wearing contact lenses requires their care and cleaning both for the preservation of the contact lenses and as well as for hygienic constraints out. This is sometimes a bit cumbersome because you have to carry both a storage and cleaning container for the contact lenses, as well as a liquid dispenser for the care liquid with it, which is cumbersome especially when traveling.
Der Kontaktlinsenbehälter beherbergt hierbei für gewöhnlich je eine separate Kontaktlinsenkammer für die rechte und für die linke Kontaktlinse. Nach dem Einlegen der Kontaktlinsen in den dazugehörigen Kontaktlinsenkammern, werden die letzteren mit Pflegeflüssigkeit befüllt und mit einem Deckel verschlossen.The contact lens container usually houses here each a separate contact lens chamber for the right and left contact lens. After inserting the contact lenses in the associated contact lens chambers, the latter are filled with care liquid and sealed with a lid.
Das Mitführen zweier solcher Behälter, nämlich eines Aufbewahrungs- und Reinigungsbehälters sowie eines Behälters für die Reinigungsflüssigkeit, die in der Regel unterschiedliche Formen und Größen aufweisen, stellt für den Kontaktlinsenträger eine unangenehme aber zwingende Last dar, da man auf das Mitführen der beiden oben genannten Behälter angewiesen ist. Außerdem ist das ständige Umfüllen von Pflegeflüssigkeit vom Flüssigkeitsspender in die Kontaktlinsenkammern hinein aufgrund der geringen Größe dieser Kontaktlinsenkammern mit einem gewissen unbeabsichtigten Verlust von Pflegeflüssigkeit verbunden und auf die Dauer lästig.The entrainment of two such containers, namely a storage and cleaning container and a container for the cleaning liquid, which generally have different shapes and sizes, represents an unpleasant but compelling load for the contact lens wearer, since it is on the entrainment of the two containers mentioned above instructed. In addition, the constant transfer of care liquid from the liquid dispenser into the contact lens chambers is due to the small size of these contact lens chambers associated with a certain unintentional loss of care liquid and annoying in the long run.
Es ist bereits als Grundidee bekannt, eine Kombination eines Kontaktlinsen-Aufbewahrungs- und -Reinigungsbehälters mit einem Flüssigkeitsspender anzustreben. So findet der Transport der Flüssigkeit aus dem Spender in den Kontaktlinsen-Aufbewahrungs- und -Reinigungsbehälter hinein innerhalb dieses einen Behälters beispielsweise durch einen Knopfdruck statt. Diese Methode würde für den kontaktlinsentragenden Benutzer, insbesondere auf Reisen, zu einer Erleichterung und Vereinfachung des Pflege- und Aufbewahrungsvorgangs seiner Kontaktlinsen führen.It is already known as a basic idea to strive for a combination of a contact lens storage and cleaning container with a liquid dispenser. Thus, the transport of the liquid from the dispenser into the contact lens storage and cleaning container takes place inside this one container, for example, by a push of a button. This method would lead to the contact lens-bearing user, especially when traveling, to facilitate and simplify the care and storage process of his contact lenses.
Es gab bereits Ansätze zur Kombination des Pflegeflüssigkeitsbehälters mit dem Kontaktlinsenbehälter, so dass diese nicht separat voneinander getragen werden müssen oder womöglich eine der Komponenten vergessen oder verloren werden könnte.There have already been attempts to combine the care liquid container with the contact lens container so that they do not have to be worn separately or possibly one of the components could be forgotten or lost.
"Pinchassi Dar et al." beschreiben in der
Ein weiterer Versuch einer solchen Kombination ist in der Schrift
Weiterhin beschreibt die
Fortier (US Design 390356) beschreibt ein zylindrisches Gebilde, das an beiden Enden je eine Kontaktlinsenkammer für je eine Kontaktlinse aufweist. Die Mitte dieses Gebildes stellt anscheinend das Flüssigkeitsreservoir dar, das durch Kompression die beiden Kontaktlinsenkammern mit Flüssigkeit befüllt.Fortier (US Design 390356) describes a cylindrical structure which has a contact lens chamber for each contact lens at both ends. The center of this structure appears to be the liquid reservoir which, by compression, fills the two contact lens chambers with liquid.
Schließlich offenbart die Schrift
Nachteilig bei den genannten Lösungen ist hierbei, daß der Pumpvorgang durch den in der geschlossenen Kontaktlinsenkammer vorhandenen Gegendruck stark behindert wird. Dies bewirkt, daß die bekannten Vorrichtungen nur bei geöffnetem Kammerdeckel mit einer definierten Flüssigkeitsmenge befüllt werden können.A disadvantage of the solutions mentioned here is that the pumping process is severely hampered by the existing in the closed contact lens chamber back pressure. This causes the known devices can be filled only with the chamber lid open with a defined amount of liquid.
Weiterhin ist hierbei nachteilig, dass auf diese Weise die Befüllung unverändert ein schwieriger Vorgang bleibt, da die zur Befüllung zu betätigenden, vergleichsweise kleinen Hilfsmittel, in der Regel ein Pumpknopf, fest eingedrückt werden müssen, wodurch es leicht zu einem Verschütten der Flüssigkeit aus den geöffneten Kontaktlinsenkammern und hierbei schlimmstenfalls sogar zu einem Herausfallen der Kontaktlinsen selbst kommen kann. Wird die Kontaktlinse erst nach dem Füllvorgang in die befüllte Kontaktlinsenkammer eingelegt, ist dies auch nicht ideal, da die sehr leichte Linse von der Reinigungsflüssigkeit getragen wird. Zur vollständigen Desinfektion muß demnach erst die vollständige Benetzung der Kontaktlinsen sichergestellt werden.Furthermore, it is disadvantageous that in this way the filling remains a difficult process, since the to be operated for filling, relatively small tools, usually a pump button, must be pressed firmly, making it easy to spill the liquid from the open Contact lens chambers and in the worst case, this may even lead to the contact lenses themselves falling out. If the contact lens is inserted into the filled contact lens chamber only after the filling process, this is also not ideal, since the very light lens is carried by the cleaning liquid. For complete disinfection, therefore, only the complete wetting of the contact lenses must be ensured.
Somit kann mit den bekannten Vorrichtungen die eigentlich angestrebte Erleichterung bei der Aufbewahrung und Reinigung der Kontaktlinsen nur bedingt erreicht werden, da die Handhabung bei geöffneten Kontaktlinsenkammern wiederum Geschick erfordert und ein Verschütten der Reinigungsflüssigkeit zur Folge haben kann.Thus, with the known devices, the actually desired relief in the storage and cleaning of the contact lenses can only be achieved to a limited extent, since handling with open contact lens chambers again requires skill and may result in spilling of the cleaning fluid.
Die US-Patentschrift
Aufgrund ihres geringen Durchmessers von wenigen Millimetern ist diese fest im Kunststoffgehäuse verspannte Membran nicht geeignet, einen Druckanstieg im Gehäuse des Desinfektionsbehältnisses durch eine Verformung zu begegnen, sondern soll bei entsprechend ansteigendem Gasdruck im Behältnis dieses Gas aufgrund seiner Mikroporen entweichen lassen.Due to its small diameter of a few millimeters, this tightly clamped in the plastic housing membrane is not suitable to counteract a pressure increase in the housing of the disinfection container by deformation, but should let escape at correspondingly increasing gas pressure in the container of this gas due to its micropores.
Somit kann auch diese Schrift die angestrebte Erleichterung bei der Aufbewahrung und Reinigung der Kontaktlinsen nicht zeigen, da die Handhabung bei geöffnetem Behälterdeckel wiederum Geschick erfordert und ein Verschütten der Reinigungsflüssigkeit zur Folge haben kann.Thus, this document can not show the desired relief in the storage and cleaning of the contact lenses, since the handling with open container lid in turn requires skill and can spill the cleaning liquid result.
Aufgabe der Erfindung vor diesem Hintergrund ist es, eine Vorrichtung der eingangs genannten Art so zu verbessern, dass deren Handhabung, insbesondere beim Befüllen der Kontaktlinsenkammern mit desinfizierender Reinigungsflüssigkeit erleichtert wird, wobei die Kontaktlinsenkammern auch bei geschlossenem Deckel befüllbar sein sollen.Object of the invention against this background is to improve a device of the type mentioned above so that their handling, especially when filling the contact lens chambers with disinfecting cleaning liquid is facilitated, the contact lens chambers should be filled even when the lid is closed.
Erreicht wird dies nach der Erfindung nach Anspruch 1 dadurch, daß die Kontaktlinsenkammern mit lösbaren Kammerdeckeln verschließbar sind, in denen mittels einer flexiblen Deckelmembran zur Kontaktlinsenkammer hin wasserdicut abgeschlossen ein komprimierbarer Hohlraum angeordnet ist.This is achieved according to the invention according to claim 1, characterized in that the contact lens chambers are closable with detachable chamber lids, in which by means of a flexible cover membrane to the contact lens chamber waterdicut completed a compressible cavity is arranged.
Die Kontaktlinsenkammern werden nach dem Einlegen der Kontaktlinsen durch einen Deckel verschlossen. Um einen Flüssigkeitsaustritt aus den Kontaktlinsenkammern beim Transport der Vorrichtung zu verhindern, müssen die Kontaktlinsenkammern wasserdicht abgeschlossen sein. Dieser dichte Verschluss muß auch bei dem durch den Pumpvorgang erzeugten Überdruck in den Kontaktlinsenkammern bestehen bleiben. Erreicht wird dies durch den im Deckel als Kompressionszone dienenden Hohlraum, der durch eine flexible Membran gegenüber der die Linse aufnehmenden restlichen Kontaktlinsenkammer abgetrennt wird.The contact lens chambers are closed after inserting the contact lenses by a lid. In order to prevent liquid leakage from the contact lens chambers during transport of the device, the contact lens chambers must be sealed watertight. This tight seal must also persist in the overpressure generated by the pumping process in the contact lens chambers. This is achieved by the serving as a compression zone in the lid cavity, which is separated by a flexible membrane with respect to the lens receiving the remaining contact lens chamber.
Dadurch ist es möglich, Flüssigkeit in die dicht verschlossene Kontaktlinsenkammer zu pumpen, wobei der Widerstand durch den entstehenden zusätzlichen Druck durch eine Kompression der Luft in dem abgetrennten Hohlraum deutlich reduziert wird. Beim Eintritt von Flüssigkeit in die bereits verschlossene Kontaktlinsenkammer weitet sich die an der innenliegenden Seite des Deckels angebrachte flexible Membran in den Hohlraum aus.This makes it possible to pump liquid into the sealed contact lens chamber, wherein the resistance is significantly reduced by the resulting additional pressure by compression of the air in the separated cavity. Upon entry of liquid into the already sealed contact lens chamber, the flexible membrane attached to the inner side of the cover expands into the cavity.
Eine vorteilhafte Bauform sieht hierbei vor, daß die Deckelmembran durch einen im komprimierbaren Hohlraum angeordneten Federkörper gegenüber der Kontaktlinsenkammer vorgespannt ist. Auf diese Weise ist der durch den Pumpvorgang für die Befüllung der Kontaktlinsenkammern erforderliche Druck über den verwendeten Federkörper einstellbar.An advantageous design provides in this case that the cover membrane by a compressible cavity arranged spring body is biased against the contact lens chamber. In this way, the pressure required by the pumping process for the filling of the contact lens chambers pressure on the spring body used is adjustable.
Hieraus resultiert, daß die Menge der beim Pumpvorgang in die Kontaktlinsenkammern einströmenden Reinigungsflüssigkeit auf diesem Wege genau einstellbar ist, wodurch der Vorteil verwirklicht werden kann, nur eine genau definierte Menge an Reinigungsflüssigkeit zu verwenden. So wird erreicht, daß die Benutzungsdauer des mit einer bestimmten Menge an Reinigungsflüssigkeit vorgefüllten Kontaktlinsen-Aufbewahrungs- und -Reinigungsbehälters deutlich verlängert werden kann, da nur genau so viel Reinigungsflüssigkeit verwendet wird wie nötig.This results in that the amount of cleaning fluid flowing into the contact lens chambers during the pumping process is precisely adjustable in this way, whereby the advantage can be realized to use only a precisely defined amount of cleaning fluid. Thus, it is achieved that the period of use of the pre-filled with a certain amount of cleaning liquid contact lens storage and cleaning container can be significantly extended, since only as much cleaning liquid is used as needed.
Eine weitere vorteilhafte Bauform sieht vor, daß die Deckelmembran einen bei der Befüllung der Kontaktlinsenkammer am Kammerdeckel anliegenden Kontrollabschnitt aufweist, der durch ein Sichtfenster im Kammerdeckel erkennbar ist. Ziel hierbei ist es, daß auf diese Weise erkennbar wird, ob die Reinigung der Linsen tatsächlich in der gewünschten Form stattfinden kann. Der Kontrollabschnitt der Deckelmembran kommt bei einer definierten Füllung der Kontaktlinsenkammer sichtbar an das Sichtfenster im Deckel heran und signalisiert so dem Benutzer, daß die Kontaktlinsenkammer ausreichend gefüllt und so die Kontaktlinse vollständig mit Reinigungsflüssigkeit benetzt ist.A further advantageous design provides that the cover membrane has a voltage applied to the filling of the contact lens chamber on the chamber cover control section, which is recognizable by a viewing window in the chamber lid. The aim here is to make it clear in this way whether the cleaning of the lenses can actually take place in the desired shape. The control portion of the lid membrane comes in a defined filling of the contact lens chamber visible to the viewing window in the lid and thus signals the user that the contact lens chamber sufficiently filled and so the contact lens is completely wetted with cleaning liquid.
Diese Funktion kann auch den Ablauf der Benutzungsdauer der Vorrichtung anzeigen, da bei Ausbleiben der gewünschten Anzeige im Sichtfenster davon ausgegangen werden muß, daß nicht mehr genug Reinigungsflüssigkeit im Behälter vorhanden ist und dieser daher ausgetauscht werden muß.This function can also indicate the expiration of the period of use of the device, since it must be assumed in the absence of the desired display in the viewing window that not enough cleaning fluid in the container is present and this must therefore be replaced.
Zweckmäßigerweise kann der Kontrollabschnitt der Deckelmembran als eine zum Kammerdeckel weisende Vertiefung in der Deckelmembran ausgebildet sein. Auf diese Weise ist eine bessere Steuerung der Anzeige im Sichtfenster möglich, da der Kontrollabschnitt eine klare Formgebung aufweist und somit auch genau in einem auch kleinen Sichtfenster positioniert werden kann. Zudem ist der Verformungsaufwand der Deckelmembran und der zum Sichtfenster zurückzulegende Weg reduzier- und definierbar.Conveniently, the control portion of the cover membrane as a chamber lid facing recess in the lid membrane may be formed. In this way, a better control of the display in the viewing window is possible because the control section has a clear shape and thus can be positioned accurately in a small viewing window. In addition, the deformation costs of the cover membrane and the distance to be traced to the viewing window can be reduced and defined.
Eine weitere vorteilhafte Gestaltung der Erfindung sieht vor, daß das Flüssigkeitsreservoir gebildet wird aus einer Oberschale, in der zumindest die Kontaktlinsenkammern angeordnet sind, sowie aus einer mit der Oberschale dicht verbundenen Unterschale, wobei der eingeschlossene Zwischenraum mit Reinigungsflüssigkeit ausgefüllt ist. Zweckmäßigerweise enthält die Oberschale ebenfalls die erforderliche Pumpe, so daß die Unterschale lediglich schalenförmig auszubilden ist. Hierbei ist vorgesehen, den gesamten Innenraum zwischen den Schalen mit Reinigungsflüssigkeit zu füllen um so ein Maximum an Flüssigkeit aufnehmen zu können und so die Benutzungsdauer verbessern zu können.A further advantageous embodiment of the invention provides that the liquid reservoir is formed from an upper shell, in which at least the contact lens chambers are arranged, as well as from a tightly connected to the upper shell bottom shell, wherein the enclosed space is filled with cleaning liquid. Conveniently, the upper shell also contains the required pump, so that the lower shell is only cup-shaped form. In this case, it is provided to fill the entire interior between the shells with cleaning fluid so as to be able to absorb a maximum of fluid and thus be able to improve the service life.
Um das Entstehen eines Unterdrucks in diesem so gebildeten Flüssigkeitsreservoir ausschließen zu können ist vorgesehen, daß auf der Unterschale eine flexible Dichtungsmembran in etwa flächig anliegt und derart mit der Unterschale verbunden ist, dass sie den Innenraum des Flüssigkeitsreservoirs gegenüber Druckausgleichsöffnungen in der Unterschale abdichtet. Beim Pumpvorgang wird demnach Flüssigkeit aus dem Flüssigkeitsreservoir entnommen, wodurch ein Unterdruck entsteht, der durch eine Verformung der Dichtungsmembran allerdings kompensiert wird. Diese Membran wird demnach über die Lebensdauer der Vorrichtung zunehmend zur Oberschale hin verformt, wobei durch die Druckausgleichsöffnungen Luft in die Unterschale einströmt, die durch die elastische Dichtungsmembran von dem Flüssigkeitsreservoir getrennt ist. Auf diese Weise kann ein sicherer Pumpvorgang zu jeder Zeit gewährleistet werden.In order to exclude the formation of a negative pressure in this liquid reservoir thus formed is provided that on the lower shell a flexible sealing membrane is approximately flat and is connected to the lower shell, that it seals the interior of the liquid reservoir against pressure equalization openings in the lower shell. Accordingly, during the pumping process, liquid is withdrawn from the liquid reservoir, resulting in a negative pressure, which is, however, compensated by a deformation of the sealing membrane. This membrane is thus increasingly deformed over the life of the device towards the upper shell, with air flowing through the pressure equalization openings in the lower shell, which is separated by the elastic sealing membrane of the liquid reservoir. In this way, a safe pumping process can be ensured at all times.
Hierbei sieht eine vorteilhafte Gestaltung der Erfindung vor, daß die auf der Unterschale in etwa flächig anliegende flexible Dichtungsmembran umlaufend im Verbindungsbereich zwischen der Oberschale und der Unterschale angeordnet ist und diesen Verbindungsbereich abdichtet. Die Dichtungsmembran wird demnach wie eine Zwischenschicht zwischen Ober- und Unterschale gelegt und durch deren Verbindung fest in dem umlaufenden Verbindungsbereich, beispielsweise einer umlaufenden Steckverbindung der Schalen, fixiert. Die derart zwischen den Schalen eingeklemmte Dichtungsmembran bewirkt hierbei aufgrund ihrer Elastizität zusätzlich eine Abdichtung in diesem Verbindungsbereich. Dies ist erforderlich, um ein Austreten der Reinigungsflüssigkeit an dieser Nahtstelle sicher zu vermeiden.An advantageous embodiment of the invention provides that the flexible sealing membrane lying approximately flat on the lower shell is arranged peripherally in the connection region between the upper shell and the lower shell and seals this connection region. The sealing membrane is thus placed as an intermediate layer between the upper and lower shell and fixed by their connection in the peripheral connection region, for example, a circumferential connector of the shells. The thus clamped between the shells sealing membrane causes this in addition due to their elasticity a seal in this connection area. This is necessary to safely avoid leakage of the cleaning fluid at this interface.
Die Kammerdeckel können hierbei einseitig gelenkig mit der Oberschale verbunden und über einen Einrastmechanismus schließbar und wieder zu öffnen sein. Ziel ist es hierbei, ein möglichst leichtes Öffnen und Schließen der Deckel zu ermöglichen. Die gelenkige Führung am Gehäuse des Behälters stellt sicher, daß die Deckel nicht als lose Teile abhanden kommen können und gleichzeitig sicher in die Verschlußstellung geführt werden, beispielsweise ohne als kleine Bauteile in der Kammeröffnung zu verkanten. Ein Einrastmechanismus hat zudem den Vorteil, daß das Verschließen durch einfachen Druck in die Einrastposition erreicht wird. Zweckmäßigerweise bewirkt ein späterer neuerlicher Druck auf den Deckel das Auslösen des Einrastmechanismus und somit das Öffnen des Deckels.The chamber lid can hereby be connected on one side articulated to the upper shell and be closed and reopened via a latching mechanism. The aim here is to make it as easy as possible to open and close the lid. The hinged guide on the housing of the container ensures that the lid can not be lost as loose parts and at the same time be safely guided into the closed position, for example, without tilting as small components in the chamber opening. A locking mechanism also has the advantage that the closure is achieved by simple pressure in the latching position. Conveniently causes a later renewed pressure on the lid, the triggering of the latching mechanism and thus the opening of the lid.
Die geschlossenen Kammerdeckel sind zudem zweckmäßigerweise durch seitlich an der Oberschale gelenkig befestigten Sicherungsbügel gegen ein unbeabsichtigtes Öffnen sicherbar. Bei geschlossenen Deckeln werden diese Bügel über die Deckel geklappt und arretiert, so daß ein unbeabsichtigtes Öffnen der Deckel durch Druck nicht möglich ist.The closed chamber lid are also expediently secured against accidental opening by laterally hinged to the upper shell securing bracket. When the lids are closed, these brackets are folded over the lid and locked, so that unintentional opening of the lid by pressure is not possible.
Der Flüssigkeitseinstrom aus dem Flüssigkeitsreservoir in die beiden Kontaktlinsenkammern hinein erfolgt über mindestens ein Einwegventil, das eine Verbindung zwischen der Pumpe und den beiden Kontaktlinsenkammern herstellt.The liquid inflow from the liquid reservoir into the two contact lens chambers takes place via at least one one-way valve which establishes a connection between the pump and the two contact lens chambers.
Der Inhalt des Flüssigkeitsreservoirs sollte Flüssigkeit für mehrere Wochen enthalten. Dem Benutzer wird das Auffüllen der Pflegeflüssigkeit aus einem anderen Behälter in die Kontaktlinsenkammern hinein von Hand erspart; das Auffüllen erfolgt einfach per Knopfdruck.The contents of the liquid reservoir should contain liquid for several weeks. The user is spared filling the care liquid from another container into the contact lens chambers by hand; the filling is done simply by pressing a button.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher beschrieben.
Es zeigen
- Figur 1:
- Draufsicht auf den Kontaktlinsen-Aufbewahrungs- und -Reinigungsbehälter
- Figur 2:
- Senkrechter Schnitt (X-X) durch eine Kontaktlinsenkammer und die Pumpe des Kontaktlinsen- Aufbewahrungs- und -Reinigungsbehälters
- Figur 3:
- Detailausschnitt A eines Einwegventils
- Figur 4:
- Perspektivische Darstellung des Kontaktlinsen- Aufbewahrungs- und -Reinigungsbehälters
Show it
- FIG. 1:
- Top view of the contact lens storage and cleaning container
- FIG. 2:
- Vertical section (XX) through a contact lens chamber and the pump of the contact lens storage and cleaning container
- FIG. 3:
- Detail A of a one-way valve
- FIG. 4:
- Perspective view of the contact lens storage and cleaning container
Der Kontaktlinsen-Aufbewahrungs- und -Reinigungsbehälter besteht aus folgenden Komponenten:
- Den Kontaktlinsenkammern 1 für die Kontaktlinsen
Den Kammerdeckeln 10Das Flüssigkeitsreservoir 2Der Pumpvorrichtung 7 zur Beförderung der Reinigungsflüssigkeit aus dem Flüssigkeitsreservoir in die Kontaktlinsenkammern hinein
- The contact lens chambers 1 for the contact lenses
- The chamber lids 10
- The
liquid reservoir 2 - The
pumping device 7 for conveying the cleaning liquid from the liquid reservoir into the contact lens chambers
Die Form der Vorrichtung sollte praktisch, handlich und transportfähig sein. Als eine sinnvolle Bauform erachtet wird das dargestellte oblate Rotationsellipsoid, ca. 25 mm stark und 80 mm im Durchmesser.The shape of the device should be practical, handy and transportable. As a meaningful design is considered the illustrated wafer ellipsoid, about 25 mm thick and 80 mm in diameter.
Die Vorrichtung wird in zwei Hauptelementen gegliedert:
- 1) Kontaktlinsenkammern 1
- 2)
Flüssigkeitsreservoir 2.
- 1) contact lens chambers 1
- 2)
liquid reservoir 2.
Die Pumpe 7 ist ein fester Bestandteil des Kontaktlinsen-Aufbewahrungs- und -Reinigungsbehälters und ist gemeinsam mit den 2 Kontaktlinsenkammern 1 in der Oberschale 33 der Vorrichtung angeordnet.The
Die beiden Kontaktlinsenkammern 1 sind mit je einem Klappdeckel 10 dicht verschließbar. In der dargestellten Bauform ist dieser Kammerdeckel 10 mittig auf der Oberschale mittels eines Scharniers befestigt. Zur Sicherung dieses Kammerdeckels 10, der vorteilhafterweise durch einen Einrastmechanismus verschließbar und wieder zu öffnen ist, ist in der dargestellten Bauform ein Sicherungsbügel 37 vorgesehen, der den Kammerdeckel 10 überspannt und formschlüssig mit einer endseitigen Aussparung in einen Vorsprung auf dem Kammerdeckel 10 eingreift.The two contact lens chambers 1 are each sealed with a hinged
Die Kontaktlinsenkammern 1 und das Flüssigkeitsreservoir 2, die gemeinsam eine Einheit bilden, sollten zusammen eine symmetrische, flache und leicht zu handhabende Form ergeben. Der Unterschale 34 des Flüssigkeitsreservoirs 2 liegt eine undurchlässige, elastische Dichtungsmembran 35 an, die die Reinigungsflüssigkeit gegenüber Druckausgleichsöffnungen 36 in der Unterschale 34 umgibt und die sich an das durch den Pumpvorgang sich ändernde Volumen von Reinigungsflüssigkeit anpasst und dieses von der durch die Druckausgleichsöffnungen 36 in den Kontaktlinsen-Aufbewahrungs- und -Reinigungsbehälter einströmenden Luft trennt.The contact lens chambers 1 and the
Durch das Abpumpen von Flüssigkeit aus dem Flüssigkeitsreservoir 2 kommt es zu einem Zusammenziehen der besagten Membran, die dafür sorgt, dass immer nur Flüssigkeit herausgepumpt wird, unabhängig von der Lage der Vorrichtung. Sogar beim Pumpen aus einer beliebigen Lage (z.B. über Kopf) gelangt nur Flüssigkeit und keine Luft in die Kontaktlinsenkammern. Somit besteht die Unterschale 34 des Kontaktlinsen-Aufbewahrungs- und -Reinigungsbehälters aus zwei Schichten: aus der harten durchbrochenen Außenhülle einerseits und aus der flexiblen Dichtungsmembran 35 andererseits.By pumping liquid from the
Die Dichtungsmembran gelangt schließlich nach dem vollständigen Abpumpen der Reinigungsflüssigkeit, auf der Innenseite der Oberschale 33 des Kontaktlinsen-Aufbewahrungs- und -Reinigungsbehälters zum Anliegen. In diesem Fall wäre der freie Innenraum des Kontaktlinsen-Aufbewahrungs- und - Reinigungsbehälters mit Luft gefüllt. Es besteht dann je nach Ausführung die Möglichkeit, den Behälter bei einer Einweglösung zu entsorgen oder bei einer Mehrweglösung neu zu befüllen oder ein neues Flüssigkeitsreservoir mit Reinigungsflüssigkeit einzusetzen.Finally, after the cleaning liquid has been completely pumped off, the sealing membrane finally comes to rest on the inside of the
Das Einströmen der Außenluft in den Kontaktlinsen-Aufbewahrungs- und -Reinigungsbehälter als Resultat des durch den Pumpvorgang (Volumenverlagerung) entstehenden Unterdruckes, kann so stattfinden durch die dazu angebrachten Öffnungen 36 und gleicht den Unterdruck aus. Somit ist es möglich, das Flüssigkeitsvolumen zu verkleinern und gleichzeitig von der umgebenden Luft zu trennen, so dass keine Vermischung der Komponenten Luft und Flüssigkeit stattfindet. Diese Trennung garantiert ein lageunabhängiges Funktionieren der Vorrichtung bzw. einen reinen Flüssigkeitsstrom in die Kontaktlinsenkammern hinein.The inflow of the outside air into the contact lens storage and cleaning container as a result of the pumping action (volume displacement) resulting negative pressure, so can take place through the
Die Kontaktlinsenkammern 1 sind entweder über ein gemeinsames oder jede Kontaktlinsenkammer über ein eigenes Einwegventil 20 mit dem Flüssigkeitsreservoir 2 verbunden.The contact lens chambers 1 are connected to the
Über eine Pumpvorrichtung 7 wird Flüssigkeit aus dem Flüssigkeitsreservoir 2 in die Kontaktlinsenkammern 1 befördert. Die Pumpvorrichtung 7 besteht aus einem Pumpknopf, der bei Betätigung durch den Benutzer den dazugehörigen Kolben in den dazugehörigen Zylinder hinein verschiebt, und dadurch die Reinigungsflüssigkeit aus dem Zylinderinnenraum befördert. Die Reinigungsflüssigkeit aus dem Zylinderinnenraum entweicht über entsprechende Verbindungskanäle in die Kontaktlinsenkammern 1 hinein.Via a
Eine Rückführung des Pumpkolbens in seine ursprüngliche Position findet entweder durch eine im Zylinderinnenraum platzierte Rückstellfeder 5 statt oder über eine elastische Verbindung des Pumpknopfes mit dem diesen umgebenden Gehäuse (z.B. eine Gummiverbindung).A return of the pump piston to its original position takes place either by a
Die Kammerdeckel 10 sind prinzipiell ähnlich wie das Flüssigkeitsreservoir aufgebaut, nämlich teils starr (z.B. aus Plastik) und teils flexibel (z.B. aus Gummi). Eine flexible Deckelmembran 15 schafft einen Hohlraum 18 innerhalb des Kammerdeckels 10.The chamber lids 10 are basically constructed similar to the liquid reservoir, namely partly rigid (e.g., plastic) and partly flexible (e.g., rubber). A
Bei einer Volumenverlagerung aus dem Flüssigkeitsreservoir 2 in die Kontaktlinsenkammern 1 hinein dehnt sich die Deckelmembran 15 aus; Luft aus dem Hohlraum 18 wird durch die kleinen Öffnungen in der Oberseite des Kammerdeckels 10 hinausgepresst. Beim Öffnen der Kammerdeckel (zur Entnahme der Kontaktlinsen) nimmt die Deckelmembran 15 aufgrund ihrer Elastizität und/oder aufgrund der Rückstellkraft der Feder ihre ursprüngliche Position wieder ein und Aussenluft wird durch die Deckelöffnungen in den Hohlraum 18 wieder aufgenommen.In the case of a volume displacement from the
Die Kammerdeckel 10 der Kontaktlinsenkammern sind ganz oder teilweise durchsichtig, so dass der Benutzer den Flüssigkeitsstand in den Kontaktlinsenkammern nach dem Befüllen dieser kontrollieren kann. Vorteilhafterweise weist die beim Befüllen zu diesem Sichtfenster 31 sich bewegende Deckelmembran 15 einen Kontrollabschnitt 32 auf, der den Füllgrad der Kontaktlinsenkammern 1 leicht erkennbar macht. Dieser Kontrollabschnitt kann zweckmäßigerweise als eine zum Kammerdeckel 10 weisende Vertiefung in der Deckelmembran 15 ausgebildet sein, die sich bei der Verformung der Membran als erstes am Sichtfenster zeigt und so die Befüllung der Kontaktlinsenkammer anzeigt.The chamber lids 10 of the contact lens chambers are fully or partially transparent so that the user can control the level of liquid in the contact lens chambers after filling them. Advantageously, the
Das Herausnehmen der Kontaktlinsen 9 erfolgt durch das Öffnen der Kammerdeckel 10. Die verbrauchte, sich in den Kontaktlinsenkammern 1 befindende Flüssigkeit wird nach dem Herausnehmen der Kontaktlinsen 9 einfach, wie gewohnt entsorgt. Da Einwegventile einen erhöhten Druck benötigen, um Flüssigkeit passieren zu lassen, wird im Zustand der geöffneten Kammerdeckel 10, keine Flüssigkeit aus dem Pumpeninnenraum in die Kontaktlinsenkammern 1 austreten können. Flüssigkeit aus dem Flüssigkeitsreservoir 2 gelangt in die Kontaktlinsenkammern 1 nur infolge der Betätigung der Pumpe 7.The removal of the
Der Austausch des verbrauchten Einweg-Kontaktlinsen-Aufbewahrungs- und -Reinigungsbehälters findet statt, nachdem die in diesem sich befindende Reinigungsflüssigkeit vollständig verbraucht wurde. Der Pumpknopf würde infolge des persistierenden Unterdruckes (fehlender Flüssigkeitseinstrom in den Pumpeninnenraum) nicht mehr in seine ursprüngliche Position zurückkehren können und würde demnach eingedrückt bleiben.Replacement of the used disposable contact lens storage and cleaning container takes place after the cleaning liquid in it is completely consumed. The pump button would not be able to return to its original position due to the persistent negative pressure (lack of liquid influx into the pump interior) and would therefore remain depressed.
Die Erfindung richtet sich an Kontaktlinsenträger, die zur Pflege und Aufbewahrung ihrer Kontaktlinsen das 1-Stufen-Pflegesysteme benutzen. Die Erfindung besteht hierbei aus der Integration eines Kontaktlinsenaufbewahrungsbehälters in ein Flüssigkeitsreservoir. Das Flüssigkeitsreservoir und der Kontaktlinsenbehälter sind dabei direkt miteinander verbunden und lediglich durch ein steuerbares Ventil voneinander getrennt. Das Auffüllen der Kontaktlinsenkammern 1 mit Flüssigkeit aus dem Flüssigkeitsreservoir 2 erfolgt einfach durch das Betätigen eines in der Vorrichtung eingebauten Pumpknopfes 7, der Aufgrund einer Drucksteigerung zur Öffnung des trennenden Ventils 20 führt, das das Flüssigkeitsreservoir 2 mit den Kontaktlinsenkammern 1 verbindet. Flüssigkeit aus dem Flüssigkeitsreservoir 2 kann dadurch irreversibel in die Kontaktlinsenkammern 1 gelangen.The invention is directed to contact lens wearers who use the 1-stage care systems for the care and storage of their contact lenses. The invention here consists of the integration of a contact lens storage container in a liquid reservoir. The liquid reservoir and the contact lens container are connected directly to each other and separated from each other only by a controllable valve. The filling of the contact lens chambers 1 with liquid from the
Die Besonderheit dieser Erfindung besteht darin, dass der Kontaktlinsenträger zur Aufbewahrung und zur Pflege seiner Kontaktlinsen 9 nur noch eine einzige Vorrichtung benötigt, die dazu noch sehr handlich und leicht zu transportieren ist. Das Auffüllen der Kontaktlinsenkammern per Knopfdruck ist leichter und komfortabler als bisherige Methoden. Ein "Zu-Hause-Vergessen" einer Komponente, des kleinen Aufbewahrungsbehälters oder des Reinigungsflüssigkeitsbehälters, ist nicht mehr möglich, denn es ist nun eine beide Komponenten umfassende Vorrichtung.The peculiarity of this invention is that the contact lens wearer for storage and care of his
Die Vorrichtung ist durch ihre flache Form und geringe Grösse dazu geeignet, immer und überall mitgetragen zu werden (z.B. in der Hosentasche, beim Sport, im Flugzeug), was dem Benutzer, im Vergleich zu den bisherigen Methoden der Kontaktlinsenpflege, ein erhöhtes Maß an Komfort und Unabhängigkeit bietet.The device is due to its flat shape and small size suitable to be carried always and everywhere (eg in the pocket, during sports, in the plane), which the user, compared to the previous methods of contact lens care, an increased level of comfort and independence offers.
- KontaktlinsenkammernContact lens chambers
- (1)(1)
- Flüssigkeitsreservoirliquid reservoir
- (2)(2)
- RückstellfederReturn spring
- (5)(5)
- Pumpvorrichtungpumping device
- (7)(7)
- Kontaktlinsecontact lens
- (9)(9)
- Kammerdeckelchamber cover
- (10)(10)
- Deckelmembranlid membrane
- (15)(15)
- Hohlraumcavity
- (18)(18)
- Einwegventilone-way valve
- (20)(20)
- Federkörperspring body
- (30)(30)
- Sichtfensterwindow
- (31)(31)
- Kontrollabschnittcounterfoil
- (32)(32)
- OberschaleUpper shell
- (33)(33)
- Unterschalesubshell
- (34)(34)
- Dichtungsmembransealing membrane
- (35)(35)
- DruckausgleichsöffnungenPressure relief openings
- (36)(36)
- Sicherungsbügelsafety catch
- (37)(37)
Claims (10)
- A contact lens storage and cleaning case comprising (a) two contact lens chanmbers 1 that are closed via a chamber cap 10 for each contact lens 9; and (b) a minimum of one fluid reservoir 2 and integrated pump 7, characterized in that the contact lens chambers 1 can be closed using removable chamber caps 1C each of which has a flexible compressible cavity 18 in whose center is mounted a flexible cap membrane 15 that faces and isolates said chamber 1; whereby air can escape from said cavity 18 via an opening in the chamber cap 10.
- Contact lens storage and cleaning case according to claim 1, characterized in that the cap membrane 15 is tensioned against the contact lens chamber 1 by a resilient mount 30 that is provided in the compressible cavity 18.
- Contact lens storage and cleaning case according to claim 1 or 2, characterized in that the cap membrane 15 exhibits a chamber cap 10 control section 32 that becomes visible through a viewing window 31 in the chamber cap 10 when the contact lens chambers 1 are filled.
- Contact lens storage and cleaning case according to one of the foregoing claims, characterized in that the contact lens chambers caps are realized as a hinged cap that snaps into the body of the cleaning casing.
- Contact lens storage and cleaning case according to one of the foregoing claims, characterized in that the fluid reservoir 2 is composed of (a) an upper bowl 33 containing the contact lens chambers 1 at a minimum; and (b) a lower bowl 34 that is attached to the upper bowl 33 via a watertight joint, whereby the resulting enclosed interstitial space is filled with cleaning solution.
- Contact lens storage and cleaning case according to claim 5, characterized in that a flexible sealing membrane 35 is mounted on all or most of the surface of the lower bowl 34 and is thus attached to the lower bowl 34, in such a way that the inside of the fluid reservoir 2 creates a seal relative to the vent openings 36 in the lower bowl 34.
- Contact lens storage and cleaning case according to claim 6, characterized in that the flexible sealing membrane 35 that covers all or most of the surface of the lower bowl 34 goes all the way around the joint between the upper 33 and lower 34 bowls, thus making said joint a watertight seal.
- Contact lens storage and cleaning case according to claims 5, 6 or 7, characterized in that the chamber caps 10 are attached to the upper bowl 33 via a unilateral hinge and can be opened and closed via a snap-in mechanism.
- Contact lens storage and cleaning case according to claims 1, 2, 3, 5, 6 or 7, characterized in that the chamber caps 10 are realized as screw-on caps with outer male threads 12 that engage with the female threads 14 in the contact lens chambers 1.
- Contact lens storage and cleaning case according to one of the claims 5-9, characterized in that when closed, the chamber caps 10 are safeguarded against adventitious opening by safety straps 36 that are attached to the side of the upper bowl 33 via hinges.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202008002794U DE202008002794U1 (en) | 2008-02-27 | 2008-02-27 | Contact lens container with compression lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2095735A1 EP2095735A1 (en) | 2009-09-02 |
| EP2095735B1 true EP2095735B1 (en) | 2011-04-13 |
Family
ID=39400264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09002756A Active EP2095735B1 (en) | 2008-02-27 | 2009-02-26 | Contact lens case for storing and cleaning |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8123028B2 (en) |
| EP (1) | EP2095735B1 (en) |
| AT (1) | ATE505102T1 (en) |
| DE (2) | DE202008002794U1 (en) |
| DK (1) | DK2095735T3 (en) |
| ES (1) | ES2365119T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3556243A1 (en) | 2018-04-19 | 2019-10-23 | Cornelius Doniga | Contact lens storage and cleaning container |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101997833B1 (en) * | 2011-02-23 | 2019-07-08 | 노바베이 파마슈티컬스, 인크. | Contact lens cleaning system with monitor |
| CN102940365A (en) * | 2012-12-08 | 2013-02-27 | 谢金桐 | Automatic cleaning storage box of contact lenses |
| JP2016536636A (en) | 2013-10-31 | 2016-11-24 | ノヴァベイ ファーマシューティカルズ インコーポレイテッド | Contact lens cleaning system with thermal insulation |
| US10045598B2 (en) * | 2015-09-04 | 2018-08-14 | Bonasse Enterprises Co., Ltd. | Contact lens case structure that provides convenient accommodation, cleaning and accessing of contact lenses |
| US9839271B1 (en) * | 2016-10-27 | 2017-12-12 | Coopervision International Holding Company, Lp | Contact lens case and related methods and kits |
| US10101599B1 (en) | 2017-12-28 | 2018-10-16 | Austin Greeson | Smart automated contact lens cleansing device |
| CA3105490A1 (en) * | 2018-07-08 | 2020-01-16 | Berlisi Industries | Contact lens case |
| AU2019202027B2 (en) * | 2019-03-13 | 2020-12-03 | Pujiang Yilin Glasses Co., Ltd. | A contact lens box convenient to take |
| WO2021038703A1 (en) * | 2019-08-26 | 2021-03-04 | 株式会社メニコン | Device case for eye and refill used for said device case for eye |
| WO2022182841A1 (en) * | 2021-02-25 | 2022-09-01 | Conpact, Llc | Slim contact lens case |
| CN113040489A (en) * | 2021-04-07 | 2021-06-29 | 深圳市斯卡诚贸易有限公司 | Spectacle case for automatically cleaning spectacles |
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| US3070105A (en) * | 1959-05-04 | 1962-12-25 | Barnes Hind International Inc | Contact lens case |
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| US3460552A (en) * | 1967-06-20 | 1969-08-12 | Barnes Hind Int | Contact lens case |
| US3643672A (en) * | 1970-03-02 | 1972-02-22 | Frank E Brown | Contact lens case |
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-
2008
- 2008-02-27 DE DE202008002794U patent/DE202008002794U1/en not_active Expired - Lifetime
-
2009
- 2009-02-26 DE DE502009000511T patent/DE502009000511D1/en active Active
- 2009-02-26 EP EP09002756A patent/EP2095735B1/en active Active
- 2009-02-26 US US12/393,826 patent/US8123028B2/en active Active
- 2009-02-26 DK DK09002756.6T patent/DK2095735T3/en active
- 2009-02-26 AT AT09002756T patent/ATE505102T1/en active
- 2009-02-26 ES ES09002756T patent/ES2365119T3/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3556243A1 (en) | 2018-04-19 | 2019-10-23 | Cornelius Doniga | Contact lens storage and cleaning container |
| WO2019202084A1 (en) * | 2018-04-19 | 2019-10-24 | Doniga Ioan Cornelius | Contact lens storage and cleansing container |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2095735A1 (en) | 2009-09-02 |
| ES2365119T3 (en) | 2011-09-22 |
| US8123028B2 (en) | 2012-02-28 |
| US20090211925A1 (en) | 2009-08-27 |
| DE202008002794U1 (en) | 2008-05-15 |
| DE502009000511D1 (en) | 2011-05-26 |
| ATE505102T1 (en) | 2011-04-15 |
| DK2095735T3 (en) | 2011-07-25 |
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