Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using disinfecting or sterilizing substance
Patent
1986-05-05
1988-05-24
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using disinfecting or sterilizing substance
42218607, 422292, 422305, 422116, A61L 220, A61L 700, B01J 1908
Patent
active
047464895
DESCRIPTION:
BRIEF SUMMARY
The present invention concerns the field of vision correction devices, and particularly contact lenses, and has as an object a method for decontaminating and cleaning ocular prostheses, particularly contact lenses.
The invention similarly has as an object a device for practicing this method.
BACKGROUND OF THE INVENTION
The human eye equipped with contact lenses, must be protected from microbial infection. One of the problems associated with these lenses resides in their maintenance product. Besides a simplicity of use, this latter requires qualities of microbiological efficiency and cleaning properties.
To this effect, there exist several methods which are classified according to their method of action in two categories, to be known as chemical and physical.
These processes nevertheless have certain inconveniences.
The chemical procedures use isotonic and sterilizing solutions containing preservatives, such as chlorhexidine and gluconate, mercury derivates or quaternary ammonium. The use of these solutions imposes numerous constraining operations on the user. Moreover, reactions of toxicity and ocular irritation are not uncommon.
A second method consists of treating the lenses with a 3% hydrogen peroxide solution. This procedure is efficient from the point of view of germ destruction, but the solution used must be neutralized with a reducing agent or a strong burning in the eye of the user may be provoked.
In the category of physical methods, there can be mentioned boiling, which is a confirmed process for sterilization of water, but which has the disadvantage, in the case of contact lenses, of provoking a lens cloudiness due to the denaturation of the muco-proteic material.
At present, there is thus no method which brings together simplicity of use and absence of undesirable secondary effects.
SUMMARY OF THE INVENTION
The present invention has as an object to overcome these disadvantages.
It has, in effect, as an object a method for decontamination and cleaning of ocular prostheses, particularly contact lenses, characterized in that it consists essentially of producing ozone by ionization in an ionizing tube, causing this ozone to migrate across a filtering membrane and next causing the said ozone to diffuse into an isotonic solution for soaking the lenses for a predetermined duration, preferably on the order of two hours.
The invention similarly has as an object a device for practicing this method, which is characterized in that it is constituted essentially by a box comprising a control panel provided with an on/off switch, a luminous indicator, a removable receptacle for receiving ocular prostheses, and an electric control circuit for an ionizing tube mounted in a cylindrical body fixed in a removable manner to the control panel of the box.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be best understood thanks to the following description, which refers to a preferred embodiment, given by way of non-limiting example, and explained with reference to the accompanying schematic drawings, in which:
FIG. 1 is a view in perspective of a device according to the invention;
FIG. 2 is a view in section, and on an increased scale of the device according to FIG. 1;
FIGS. 3 and 4 are views in section of two possible embodiments for the filtration device, and
FIG. 5 is a diagram of the electric control circuit.
DETAILED DESCRIPTION OF THE INVENTION
According to the invention, and as is shown more particularly by way of example, in FIGS. 1 and 2 of the accompanying drawings, the device for practicing the method of decontamination and cleaning of ocular prostheses, and particularly contact lenses, is constituted essentially by a box 1 which comprises a control panel 2 provided with an on/off switch 3, an indicator 4 serving to indicate functioning of the device, a removable receptacle 5 for receiving ocular prostheses fixed under the control panel 2, and an electric control circuit 6 for an ionizing tube 7, which is mounted in a cylindrical body 8, which is fixed in a removable manner to the control
REFERENCES:
patent: 3473886 (1969-10-01), Leeds
patent: 3549528 (1970-12-01), Armstrong
patent: 3852032 (1974-12-01), Urbach
patent: 4063890 (1977-12-01), Baron
patent: 4179616 (1979-12-01), Coviello et al.
Johnston Jill
Nold Yves
Richman Barry S.
LandOfFree
Method for decontaminating and cleaning ocular prostheses, parti does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for decontaminating and cleaning ocular prostheses, parti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for decontaminating and cleaning ocular prostheses, parti will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1057381