CN213910835U

CN213910835U - Device for applying eyedrops

Info

Publication number: CN213910835U
Application number: CN202021288666.9U
Authority: CN
Inventors: 吴明翰; 吴思仪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-08-10
Anticipated expiration: 2030-07-03
Also published as: JP3242382U; WO2022001911A1

Abstract

The utility model relates to an eyedrop's application device, including a body, this body has a surface that can supply to accept eyedrop, and this body is made by porous material, and this porous material has 30-150 pore density, and the surface of this body can be equipped with a recess and accept some in the liquid drop with this surface of keeping, the utility model discloses can ensure convenience and the security of eyedrop in using, still in the person of facilitating the use instils into eyes with the eyedrop of trace eyedrop and reduction concentration.

Description

Device for applying eyedrops

Technical Field

The present invention relates to an eyedrop applicator, and more particularly to an eyedrop applicator capable of conveniently applying a small amount of eyedrops and/or a small amount of eyedrops.

Background

In recent years, the safety of medication for children has been receiving more and more attention from society. Children are sensitive to drug dosage response, and the drug dosage is different at different ages or different weights at the same age, so that the treatment effect cannot be achieved due to too little drug dosage, and the side effect is increased due to too much drug dosage. However, the amount of liquid medicine (especially bottled eyedrops) cannot be reduced according to the age or weight of the patient, and thus the dosage of eyedrops is not suitable for children. In particular, a bottle of eye drops between about 30-50 microliters, which is more than the amount required by the average person, and especially more than the corresponding amount for young children. Children may experience side effects of increased intraocular pressure, allergies, photophobia, or increased eye discomfort due to the use of excess eye drops for a long period of time. In addition, the concentration of active ingredients in commercially available eye drops is generally controlled within a range that does not allow easy direct application by users who require low concentrations. Usually, the dilution is carried out to a low concentration with the help of medical care personnel, which causes troubles and inconvenience in use.

There is a lack of a simple eye drop applicator that allows the user to easily access minute and/or reduced concentrations of eye drops for application.

SUMMERY OF THE UTILITY MODEL

Therefore, an object of the utility model is to provide an eyedrop's application device, its simple structure, convenient operation can overcome prior art's defect, more conveniently realizes the application of eyedrop.

In order to achieve the above object, the utility model discloses an eyedrops applying device, including a body, its characterized in that: the body has a first surface for receiving an eye drop, the body is made of a porous material having a pore density of 30-150 and a Shore hardness of 5-50, the first surface has a first diameter, and the first diameter is between 3 and 20 mm.

Wherein the body is made of a non-absorbent sponge, and the sponge has a Shore hardness of between 10 and 30.

Wherein, the first surface of the body is provided with a groove for retaining a part of the eyedrops received by the first surface.

Wherein, the body is a slender rod body and has a circular cross section, and the groove has a second diameter which is between 0.5 and 2 mm.

The body further has a second surface opposite to the first surface and a through hole penetrating the first surface and the second surface, and the through hole has an opening on the first surface for retaining part of the eye drops received by the first surface.

Wherein the diameter of the perforation is 0.5-2 mm.

The body comprises a front end and a rear end separated from the front end, the first surface is formed at the front end, the rear end of the body is provided with a combining part, and a handle is combined at the combining part for a user to hold.

Wherein, the combining part is a notch.

Through the structure, the utility model discloses an applicator can let the user conveniently obtain trace eye drop and carry out the dilution of eye drop easily and use with the reduction concentration, reaches convenience and the security of ensureing eye drop in using, and it can be in person of facilitating the use (for example children) instils into eye with trace eye drop and the eye drop that reduces concentration.

Other objects, advantages and features of the present invention will become apparent from the following detailed description of the preferred embodiments thereof, when read in conjunction with the accompanying drawings.

Drawings

FIG. 1: the utility model discloses the perspective view of the application device of first embodiment.

FIG. 2: a cross-sectional view of the applicator of fig. 1 is shown.

FIG. 3: a close-up view of the applicator of fig. 2 is shown.

FIG. 4: a schematic illustration of dropping a drop of eye drops from a container to the applicator of fig. 1 is shown.

FIG. 5: the applicator of fig. 4 is shown receiving a drop of liquid.

FIG. 6: a cross-sectional view similar to fig. 3 shows an applicator according to a second embodiment of the invention.

FIG. 7: a schematic illustration of the instillation of ophthalmic fluid received by the applicator of fig. 1 to an eye of a user is shown.

FIG. 8: a third embodiment of the present invention is a cross-sectional view of an applicator.

FIG. 9: the applicator of fig. 8 is shown schematically receiving a droplet.

FIG. 10: the utility model discloses an exploded view of the applicator of the fourth embodiment.

FIG. 11: a schematic illustration of the applicator of fig. 10 receiving a droplet of aqueous ophthalmic solution is shown.

FIG. 12: a schematic view showing the pouring of a portion of the drop received by the applicator of fig. 11.

FIG. 13: a schematic showing the application of at least one drop of diluent to the applicator of fig. 12.

FIG. 14: a schematic illustration of the instillation of the ophthalmic solution received by the applicator of fig. 13 to the eye of the user is shown.

Detailed Description

The preferred embodiments of the present invention will now be described, by way of example only and not by way of limitation, with reference to the accompanying drawings, in which:

referring to fig. 1-4, an eye drop applicator 10 according to an embodiment of the present invention is shown, the applicator 10 including a body 12, the body 12 having a first surface 16 for receiving an eye drop 14. The body 12 is made of a porous material having a pore density (PPI) of 30-150 such that the droplets 14 carried on the first surface 16 are in suspension due to adhesion and surface tension (see fig. 5). When the pore density is less than 30, the ophthalmic aqueous solution droplets 14 easily flow into the pores of the first surface 16, and when the pore density is more than 150, the ophthalmic aqueous solution droplets 14 easily slide off the first surface 16. In addition, the body 12 is selected from hydrophobic materials. Further, the material of the body 12 has a Shore hardness (Shore hardness) of between 5 and 50, preferably less than 30, and more preferably between 10 and 30. A body 12 having a Shore hardness of between 10 and 30 may improve the safety of the applicator 10 in use without discomfort when the user's eye directly contacts the body 12. In one embodiment, the body is selected from low density polyether, polyether (poly ether), polyvinyl alcohol, polyester (polyester), or foamed plastic polymer.

In this embodiment, the body 12 is a thin rod made of sponge (low density polyether) that does not absorb water and has a circular cross section. The body 12 includes a front end 18 and a rear end 20. The first surface 16 is formed on the end surface of the front end 18 and is a plane, and the end surface of the rear end 20 has a second surface 22. The first surface 16 has a first diameter (d1), in the preferred embodiment, the first diameter (d1) is between 3 and 20 mm.

In this embodiment, the first surface 16 of the body 12 is provided with a groove 24, and the groove 24 has a circular cross section and a U-shaped longitudinal section, as shown in FIG. 3. The groove 24 has a second diameter (d2), the second diameter (d2) being smaller than the first diameter (d 1). The provision of grooves 24 increases the surface area of first surface 16, allowing at least some of droplets 14 to adhere to the walls of grooves 24 and remain on first surface 16. The size and shape of the first surface 16 and the recess 24 may vary according to requirements. In a preferred embodiment, the second diameter (d2) is less than 5 mm and between 0.5-2mm such that the groove 24 retains 0.1-95% by volume of the entire amount of the droplet 14 received by the first surface 16. In another possible embodiment, the groove 24 has a longitudinal section substantially in the shape of a V, as shown in fig. 6.

Fig. 4 and 5 illustrate one embodiment of the applicator 10 for capturing eye drop droplets 14. In practice, a container 26 containing an eye drop (e.g., an eye drop bottle) is positioned above first surface 16 of body 12 (e.g., 1 centimeter above first surface 16), and drops 14 of eye drop from a drop opening 27 of container 26 to first surface 16 of body 12. Fig. 7 illustrates an application embodiment of dropping eye drop droplets 14 taken by the applicator 10 into the user's eye. During dispensing, the user may lower his head to bring his eyes into direct contact with the droplets 14 on the first surface 16 without the need for a conventional head-up. If the user holds the applicator 10 in an inverted or level condition such that a portion of the droplet 14 slides off the first surface 16, at least a portion of the droplet 14 remains on the first surface 16 sufficient for the user to dispense medication by virtue of the porous pores and/or grooves 24 of the first surface 16. Alternatively, the user may intentionally slide (slightly fling) most of the droplets 14 away leaving a trace of droplets 14 for application; the user may then pull down on lower eyelid 30 with the index finger and place first surface 16 adjacent eye 32 such that droplets 14 remaining on first surface 16 are deposited into the sulcus between the white of the eye and the lower eyelid to complete the application of the eye drop. It should be noted that the droplets obtained by the applicator 10 are not limited to eye drops, and may be applied to other droplets.

During dispensing, regardless of the angle of inclination of the first surface 16, the droplet 14 does not slide off the first surface 16 completely, and the remaining droplet 14 remains available for use. That is, based on experimental confirmation, when the first surface 16 of the body 12 is tilted to pour the droplet 14 away such that the droplet 14 slides away from the first surface 16, a portion of the droplet 14 may be retained on the first surface 16 for application by the first surface 16 having a pore density or arrangement of grooves 24 of 30-150 PPI.

As shown in the data sheet of the following experiment, the average weight of each droplet was 44+/-9uL, and the weight of the remaining droplets after pouring was 5+/-2uL, representing 11.364%.

Data sheet

When a low concentration of eye drop is desired, a diluent may be added to first surface 16 to mix with the remaining droplets 14. In one embodiment, a drop of diluent (e.g., distilled water) is added to the residual eye drop, the average weight of the diluent drop is 44uL, and thus the concentration (mg/dl) after dilution is 5/(44+5), which is 0.102, which can be diluted by about one tenth. Two drops of diluent (about 88uL drop weight) can be added into the residual eye drop to make the concentration 5/(88+5), the ratio is 0.049, and the diluent can be diluted by about one twentieth. Or, after adding one drop of diluent, the diluted liquid drops can be dropped to leave a trace amount of low-concentration eye drops, and then one drop of diluent is added, so that the ratio of the diluted liquid drops is about 0.010 and the diluted liquid drops can be diluted by less than one-twentieth. Accordingly, the application device 10 of the present invention can allow a user to conveniently obtain a small amount of eye drops, especially a small amount of eye drops less than 28 μ l, so that the dosage of the eye drops for children can be reduced according to the age or the weight of the children, and the eye drops can exert the best curative effect. In addition, the application device 10 of the present invention also allows the user to dilute the eye drops by himself to obtain a reduced concentration, thereby improving the convenience of use. In a practical embodiment, the applicator 10 of the present invention can be delivered to the patient by the physician, since the physician knows the correct dosage and concentration required by the patient.

Fig. 8 and 9 show an applicator 10 according to a third embodiment of the present invention, in which the body 12 has a bore 34 extending from the front end 18 through the rear end 20, the bore 34 having an opening 24a in the first surface 16, the opening 24a being adapted to receive an eye drop to form a recess 24-like structure on the first surface 16, and a portion of the drop 14 received by the first surface 16 being retained by the wall of the bore 34.

Fig. 10 shows an applicator 10 according to a fourth embodiment of the present invention, in which the body 12 is made of a porous material (e.g., a sponge that does not absorb water) and the rear end 20 of the body 12 is provided with a joint 36, and the joint 36 is a notch. A handle 38 is detachably coupled to the coupling portion 36 for holding by a user. The used body 12 may be removed from the grip to allow a new body 12 to be attached to the grip 38 for the next use. Figure 11 shows ophthalmic aqueous droplets 14 dripping from container 26 onto first surface 16 of this embodiment. Fig. 12 shows a user tilting the first surface 16 of the body 12 such that the droplet 14 slides off the first surface 16. Fig. 13 shows the addition of diluent 40 at first surface 16 to mix with residual droplets 14 to achieve a reduced concentration of eye drops. Fig. 14 shows application by a user in a non-heads-up position with index finger 28 pulling down lower eyelid 30 and dropping droplets 14 retained by first surface 16 into eye 32. In practice, the user can see the position of the handle 38, so that the body 12 is not afraid of touching the eyes, and the use safety can be increased. In another possible embodiment, the body 12 is made in the form of a sheet made of porous material (for example, a sponge that does not absorb water).

The present invention further provides a method for applying an eye drop, the method comprising providing an applicator 10 according to the above embodiment; applying an eye drop 14 to a first surface 16 of the body 12 of the applicator 10; allowing a portion of the eye drop 14 to slide off the first surface 16 while leaving a trace amount of 0.1-95% by volume of the total amount of the drop 14 on the first surface 16; and dripping the microdroplet 14 into the eye of a user.

The application method of the present invention can drop at least one drop of diluent 40 to the first surface 16 and mix with the micro-droplets 14 to form a first diluent before dropping the micro-droplets 14 into the eyes of the user; thereafter, allowing a portion of the first diluting liquid to slide off the first surface 16 to leave a first trace of diluting liquid on the first surface 16; then, dropping at least one drop of diluent 40 on the first surface 16 to mix with the first micro-diluent to form a second diluent; thereafter, a portion of the second dilution is allowed to slide off the first surface 16 leaving a second volume of the second dilution on the first surface 16, and the second volume of the second dilution is transferred to the user's eye.

The above detailed description and drawings of the preferred embodiments of the present invention are not intended to limit the present invention, and all the scope of the present invention shall be defined by the following claims, and all the embodiments and similar structures of the spirit and similar changes of the claims shall be included in the present invention.

Claims

1. An eyedrop applicator, comprising a body, characterized in that: the body has a first surface for receiving an eye drop, the body is made of a porous material having a pore density of 30-150 and a Shore hardness of 5-50, the first surface has a first diameter, and the first diameter is between 3 and 20 mm.

2. The device for applying an eye drop according to claim 1, wherein the body is made of a non-absorbent sponge and the sponge has a shore d hardness of between 10 and 30.

3. An eye drop applicator according to claim 1 or 2, wherein the first surface of the body is provided with a recess to retain a portion of the first surface that receives the eye drop.

4. The device of claim 3 wherein the body is a slim rod and has a circular cross-section, and the recess has a second diameter, the second diameter being between 0.5 mm and 2 mm.

5. The device of claim 1 or 2, wherein the body further has a second surface opposite the first surface and a hole extending through the first and second surfaces, the hole having an opening at the first surface to retain a portion of the first surface receiving the ophthalmic solution.

6. An eye drop applicator according to claim 5, wherein the perforations have a diameter of 0.5-2 mm.

7. The device as claimed in claim 1 or 2, wherein the body comprises a front end and a rear end spaced from the front end, the first surface is formed on the front end, the rear end of the body is provided with a coupling portion, and a grip is coupled to the coupling portion for a user to hold.

8. The device as claimed in claim 5, wherein the body comprises a front end and a rear end spaced from the front end, the first surface is formed on the front end, the rear end of the body is provided with a coupling portion, and a grip is coupled to the coupling portion for being held by a user.

9. The device for applying an eye drop according to claim 8, wherein the engaging portion is a notch.