CN113397808A

CN113397808A - Eye drop dropping device

Info

Publication number: CN113397808A
Application number: CN202110881143.8A
Authority: CN
Inventors: 张�杰; 张博友; 徐姣; 卫萍; 谷风康; 任飞; 王静成
Original assignee: Second Xiangya Hospital of Central South University
Current assignee: Second Xiangya Hospital of Central South University
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2021-09-17

Abstract

The invention discloses an eye drop device which comprises a supporting plate, an extrusion plate, two groups of clamping arms and a spreading clamp, wherein a limiting ring is arranged at the bottom of the supporting plate, the extrusion plate is hinged to the top end of the supporting plate and is provided with an adjusting screw rod which is abutted against a bottle body, the two groups of clamping arms are oppositely arranged on two sides of the supporting plate, and the spreading clamp is hinged to two sides of the limiting ring. When the eye drop bottle is used, the extrusion plate is lifted firstly, the eye drop bottle is tightly attached to the support plate and enters between the two groups of clamping arms, the bottle mouth is inserted into the limiting ring, and the bottle body is clamped by the two groups of clamping arms; then, put down the stripper plate, two sets of struts press from both sides rely on the holding down force to strut the eyelid, again according to waiting to instil into the adjusting screw who predetermines the dose screw in and predetermine the number of turns, the bottle is kept away from to the stripper plate, presses adjusting screw again, and adjusting screw extrudees the bottle, and the bottle instils into the liquid medicine of predetermineeing the dose to the intraocular, and the stripper plate is close to the bottle along with adjusting screw and offsets until the spacing arris with the backup pad, and the volume deflection of bottle becomes positive correlation with the predetermined dose of instiling, the dropping volume of accurate control eyedrops from this.

Description

Eye drop dropping device

Technical Field

The invention relates to the field of ophthalmic instruments, in particular to an eye drop device.

Background

Eye drops are common ophthalmic drugs and are often used directly for treating various ophthalmic diseases. The conventional use modes of the eye medicine are as follows: one hand is used for opening the upper eyelid and the lower eyelid, and the other hand is used for extruding the eyedrops after the eye mouths of the eyedrops are aligned with the eyes, so that the eyedrops are dripped into the conjunctival sac of the eyes. In the process of dropping the eye drops, the bottle mouth needs to keep a proper distance from the eyes so as to avoid the eye drop pollution, thus easily causing the problems of reflective blinking or difficult alignment of the bottle mouth to the eyes and the like, leading the eye drops to be dropped outside the eyes and causing the eye drop waste.

Based on this, the related personnel developed the eye drop device for assisting in dropping the eye drops. However, the existing eye drop device has a major drawback. For example, the existing eye drop dropping device utilizes a gear assembly to transmit applied pressing force, so that the dropping amount of the eye drops is easily affected by the magnitude of the pressing force, when the pressing force is too large, a plurality of eye drops can be continuously dropped by one pressing, and the dropping amount of the eye drops cannot be accurately controlled.

Disclosure of Invention

In view of the above, an object of the present invention is to provide an eye drop dropping device, which comprises a bottle body clamped by clamping arms disposed at two sides of a supporting plate, an eyelid opened by a spreading clamp, and an adjusting screw rod extruded after adjusting the dosage, wherein the bottle body drops a predetermined dosage of liquid medicine into an eye, and the dropping amount of the eye drop is precisely controlled according to the positive correlation between the volumetric deformation amount of the bottle body and the dropped predetermined dosage.

The invention provides an eyedrop dropping device, which comprises a supporting plate, an extrusion plate, two groups of clamping arms for clamping a bottle body and an opening clamp for opening an eyelid by means of downward pressure, wherein the two groups of clamping arms are oppositely arranged on two sides of the supporting plate, the bottom of the supporting plate is provided with a limiting ring for limiting the position of an inserted bottle mouth, and the two groups of opening clamps are positioned under the bottle mouth and are respectively hinged on two sides of the limiting ring; the extrusion plate is hinged to the top of the supporting plate and is provided with an adjusting screw rod which is abutted against the bottle body; when the adjusting screw rod of presetting the number of turns is screwed in according to the preset dose of waiting to instil into, press adjusting screw rod, the liquid medicine of presetting the dose is extruded to the bottle, and the stripper plate is close to the bottle and offsets up to the spacing arris with the backup pad.

Preferably, the distraction clip comprises a first brace rod and a second brace rod which are hinged at two ends, the first brace rod and the second brace rod are respectively provided with an arc brace rod which protrudes outwards and downwards, and the arc brace rod comprises an inner side surface with the radian consistent with that of the eyeball and an outer side surface extending along the tangential direction of the eyeball.

Preferably, the spreading clamp comprises a brace elastic piece fixedly arranged between the first brace and the second brace.

Preferably, the stay bar elastic part comprises a first elastic sheet and a second elastic sheet which are oppositely arranged and one ends of which are respectively fixed on the first stay bar and the second stay bar, and free ends of the first elastic sheet and the second elastic sheet are provided with engaging teeth and engaging grooves which are engaged with each other.

Preferably, the first support rod and/or the second support rod are fixedly provided with a limiting block for limiting the rotation angle of one relative to the other.

Preferably, the end of the two groups of clamping arms far away from the limiting ring is provided with an inclined guide surface, and the two inclined guide surfaces form a conical opening for guiding the bottle body to enter the space between the two clamping arms.

Preferably, one side of each group of clamping arms facing the bottle body is provided with an arc-shaped groove.

Preferably, each group of clamping arms is integrally provided with a guide rod, the side face of the supporting plate is provided with a guide groove matched with the guide rod, a stop plate is fixedly arranged at the notch of the guide groove, and a clamping arm elastic piece is arranged between the guide rod and the stop plate.

Preferably, the supporting plate is provided with a mounting groove, the extrusion plate is hinged in the mounting groove through a hinge shaft, and the limiting edge is positioned on the groove edge of the mounting groove.

Preferably, the rotating disc is fixedly arranged at one end of the adjusting screw rod, which is far away from the bottle body.

Compared with the background art, the eye drop dropping device provided by the invention comprises a supporting plate, an extrusion plate, two groups of clamping arms and a spreading clamp, wherein the supporting plate is provided with a limiting ring, the extrusion plate is hinged to one end of the supporting plate, which is far away from the limiting ring, and is provided with an adjusting screw rod which is abutted against a bottle body, the two groups of clamping arms are oppositely arranged on two sides of the supporting plate, and the spreading clamp is hinged to two sides of the limiting ring and is positioned under a bottle mouth.

When the eye drop bottle is used, the extrusion plate is lifted firstly, the eye drop bottle clings to the support plate and enters between the two groups of clamping arms until the bottle mouth is inserted into the limiting ring, the position of the eye drop bottle is preliminarily limited, and then the two groups of clamping arms are utilized to clamp the bottle body from two sides of the bottle body; then, put down the stripper plate, push down the backup pad again, two sets of clamps that strut rely on the holding down force to strut the eyelid, according to waiting to instil into preset dose, the adjusting screw of predetermineeing the number of turns is screwed in, the bottle is kept away from to the stripper plate, presses adjusting screw again, and adjusting screw extrudees the bottle, and the bottle instils into the liquid medicine of predetermineeing the dose to the intraocular, and the stripper plate is close to the bottle along with adjusting screw, and until the stripper plate resumes to offset with the spacing arris of backup pad. Obviously, the volume deformation of the bottle body is positively correlated with the preset dosage, thereby accurately controlling the dropping amount of the eye drops.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is an isometric view of an eye drop apparatus according to an embodiment of the present invention clamping a bottle;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is an isometric view of an eye drop assembly according to an embodiment of the present invention;

FIG. 5 is a block diagram of the distractor clip of FIG. 4;

FIG. 6 is another view of FIG. 5;

FIG. 7 is a block diagram of the first brace of FIG. 5;

FIG. 8 is a block diagram of the second brace of FIG. 5;

FIG. 9 is a structural view of the stay spring of FIG. 5;

FIG. 10 is a block diagram of the compression plate of FIG. 4;

FIG. 11 is an assembled view of the support plate and clamp arm of FIG. 4;

FIG. 12 is an assembled view of the clamp arm, the clamp arm elastic member and the stop member of FIG. 11;

fig. 13 is a structural view of the support plate of fig. 11.

The reference numbers are as follows:

a bottle body 01;

the device comprises a supporting plate 1, an extrusion plate 2, a clamping arm 3, a spreading clamp 4, a limiting ring 5, an adjusting screw 6, a clamping arm elastic piece 7 and a stop plate 8;

a guide groove 11, a mounting groove 12 and a hinge shaft 13;

a limiting edge 121;

a columnar stopper 21;

a slant guide surface 31, an arc-shaped groove 32 and a guide rod 33;

a stopper 40, a first stay 41, a second stay 42, and a stay elastic member 43;

a first arched stay 411;

a second arched strut 421;

the first elastic sheet 431, the second elastic sheet 432, the meshing groove 433 and the meshing tooth 434;

a rotating disc 61 and a ball-type protrusion 62.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific examples.

Referring to fig. 1 to 13, fig. 1 is a perspective view of an eye drop dripping device clamping a bottle according to an embodiment of the present invention; FIG. 2 is a front view of FIG. 1; FIG. 3 is a side view of FIG. 1; FIG. 4 is an isometric view of an eye drop assembly according to an embodiment of the present invention; FIG. 5 is a block diagram of the distractor clip of FIG. 4; FIG. 6 is another view of FIG. 5; FIG. 7 is a block diagram of the first brace of FIG. 5; FIG. 8 is a block diagram of the second brace of FIG. 5; FIG. 9 is a structural view of the stay spring of FIG. 5; FIG. 10 is a block diagram of the compression plate of FIG. 4; FIG. 11 is an assembled view of the support plate and clamp arm of FIG. 4; FIG. 12 is an assembled view of the clamp arm, the clamp arm elastic member and the stop member of FIG. 11; fig. 13 is a structural view of the support plate of fig. 11.

The embodiment of the invention discloses an eye drop device, which is suitable for a medicine bottle packaged by a plastic bottle and comprises a supporting plate 1, a squeezing plate 2, two groups of clamping arms 3 and a spreading clamp 4.

The support plate 1 is a unitary plate and the components are mounted directly or indirectly to the support plate 1 such that the support plate 1 provides support for the mounting of the components. The side of the support plate 1 adjacent to the bottle body 01 may be a plane or an arc, but whatever the shape, it is necessary to ensure that the bottle body 01 of the eyedrop bottle is tightly attached to the support plate 1.

The bottom of the supporting plate 1 is fixedly provided with a limiting ring 5, when the bottle mouth is inserted into the limiting ring 5, the limiting ring 5 can prevent the bottle body 01 from continuously moving downwards to limit the position of the bottle mouth. The 5 integral types of spacing ring are located the bottom of backup pad 1 perpendicularly, and the lateral wall is equipped with the breach, conveniently dials out the bottle neck. The limiting ring 5 with the notch can be an elastic part, so that the aperture of the limiting ring 5 can be adjusted, and the bottle mouth with different thicknesses can be favorably adapted. Of course, the stop collar 5 may also be a closed ring structure.

The extrusion plate 2 is hinged on the top of the support plate 1, so that the extrusion plate 2 can be turned up and down relative to the support plate 1. One end of the extrusion plate 2, which is far away from the support plate 1, is provided with an adjusting screw rod 6, and the adjusting screw rod 6 is in threaded fit with a threaded hole formed in the extrusion plate 2. The adjusting screw 6 is abutted against the bottle body 01, and the bottle body 01 is extruded by the adjusting screw 6, so that the dropping amount of the bottle body 01 is accurately controlled. The extrusion plate 2 is specifically a bending plate, and the included angle is an obtuse angle, so that the bottle body 01 is suitable for bottle bodies 01 with different thicknesses, and collision interference between the extrusion plate 2 and the bottle body 01 is avoided.

Two sets of centre gripping arms 3 are located the left and right sides of backup pad 1 respectively, and all are located the centre of backup pad 1, and the convenient both sides from bottle 01 press from both sides tight bottle 01, play the effect of fixed bottle 01.

The opening clamp 4 is hinged on two sides of the limiting ring 5 and is located under the bottle mouth, so that after the bottle mouth is aligned with the eyes, the opening clamp 4 can quickly open the upper and lower eyelids of the patient by means of downward pressure, the patient is guaranteed to extrude the eye medicine after opening the eyelids, and the eye medicine can be prevented from being extruded outside the eyes.

When the eye drop bottle is used, the extrusion plate 2 is lifted firstly, the eye drop bottle clings to the support plate 1 and enters between the two groups of clamping arms 3 until the bottle mouth is inserted into the limiting ring 5, the position of the eye drop bottle is limited preliminarily, and then the two groups of clamping arms 3 are utilized to clamp the bottle body 01 from two sides of the bottle body 01; then, put down stripper plate 2, push down backup pad 1, two sets of clamps 4 that strut rely on the holding down force to strut the eyelid, again according to waiting the predetermined dose that instils into, the adjusting screw 6 of the preset number of turns of screw in, the articulated installation of stripper plate 2 makes the distance increase between stripper plate 2 and the bottle 01, stripper plate 2 keeps away from bottle 01, again press adjusting screw 6, adjusting screw 6 extrudes bottle 01, bottle 01 instils into the liquid medicine of predetermined dose to the intraocular, stripper plate 2 is close to bottle 01 along with adjusting screw 6, until stripper plate 2 resumes to offset to spacing arris 121 with backup pad 1. The volume deformation of the bottle body 01 is positively correlated with the preset dosage, thereby accurately controlling the dropping amount of the eye drops.

The preset dosage is the optimal dosage required to be dropped into eyes of a patient, and the preset number of turns is the number of turns required to rotate the adjusting screw rod 6 when the bottle body 01 drops the eye medicine with the preset dosage. For example, each time the adjustment screw 6 is rotated one turn, the bottle 01 extrudes one drop of eye drops. The preset depth corresponds to the preset volume, and may be preset according to the volume of the eyedrops contained in the bottle 01, the length of the adjusting screw 6 and experience, which is not limited herein.

The opening clamp 4 comprises a first stay bar 41 and a second stay bar 42, two ends of the first stay bar 41 and the second stay bar 42 are hinged to each other, specifically, pin shafts are mounted on two opposite sides of the limiting ring 5, two ends of the first stay bar 41 and two ends of the second stay bar 42 are hinged to two sides of the limiting ring 5 through the pin shafts, and the opening clamp 4 is located right below the bottle mouth. The first stay bar 41 and the second stay bar 42 are both U-shaped. The first support rod 41 includes a first left connecting rod, a first right connecting rod and a first arc support rod 411, the first left connecting rod and the first right connecting rod are respectively fixed at two ends of the first arc support rod 411, and the first left connecting rod and the first right connecting rod are symmetrically arranged. Similarly, the second brace 42 includes a second left connecting rod, a second right connecting rod and a second arc brace 421, the second left connecting rod and the second right connecting rod are respectively fixed at two ends of the second arc brace 421, and the second left connecting rod and the second right connecting rod are symmetrically disposed. The first left connecting rod, the first right connecting rod, the second left connecting rod and the second right connecting rod are bending rods, the first left connecting rod is hinged to the second left connecting rod, and one ends of the first left connecting rod and the second left connecting rod, which are located above the pin shaft, are bent towards the direction away from the other one, so that interference and collision during relative rotation of the first left connecting rod and the second left connecting rod are avoided. Similarly, the first right connecting rod and the second right connecting rod are hinged, and one ends of the first right connecting rod and the second right connecting rod, which are positioned above the pin shaft, are bent towards the direction far away from the other end.

It is critical that the first support rod 41 and the second support rod 42 have arc-shaped support rods protruding outward downward, that is, both the first arc-shaped support rod 411 and the second arc-shaped support rod 421 protrude in a direction away from the other one, and are both arc-shaped, and by optimizing the structure of the arc-shaped support rods, the contact area between the arc-shaped support rods and the eyelid is increased, so that the arc-shaped support rods are fully attached to the eyelid, and the eyelid is prevented from slipping and slipping, so that the eyelid can be opened in a safe and comfortable state of the eyeball.

The whole trend of the arc-shaped support rod is upwards bent along the tangential direction of the eyeball. In order to reliably open the eyelid, the arc-shaped stay bar comprises an inner side surface and an outer side surface, the inner side surface is arranged on the inner side of the arc-shaped stay bar, the radian of the inner side surface is consistent with that of the eyeball, the contact area between the arc-shaped stay bar and the eyelid is increased, and the arc-shaped stay bar is ensured to be tightly attached to the eyeball. The lateral surface extends along the tangential direction of the eyeball to prop open the eyelid along the tangential direction of the eyeball, so that the original downward acting force applied to the eyelid is converted into a decomposition force along the tangential direction of the eyeball, the acting force direction applied by the arc-shaped support rod is consistent with the physiological opening direction of the eyelid, the vertical pressure of the eyeball is reduced, and the eyeball is prevented from being directly extruded by the vertical force.

The expansion clip 4 includes a stay elastic member 43 fixedly disposed between the first stay 41 and the second stay 42, and when the expansion clip 4 is pressed against the eyeball, the first stay 41 and the second stay 42 are expanded by overcoming the elastic force of the stay elastic member 43. After the expanding clip 4 supports the eyelid by the downward pressure, the first stay 41 and the second stay 42 assist the closing of the eyelid by the elastic force applied by the stay elastic member 43.

The support rod elastic piece 43 comprises a first elastic piece 431 and a second elastic piece 432 which are oppositely arranged, one end of the first elastic piece 431 is fixed on the first support rod 41, specifically, an inserting protrusion is integrally arranged at one end of the first elastic piece 431, an inserting groove is formed in one side, close to the second support rod 42, of the first support rod 41, and the inserting protrusion is matched with the inserting groove to enable the first elastic piece 431 to be fixed on the first support rod 41. Of course, the first resilient sheet 431 may be fixed to the first stay 41 by a fastening screw. One end of the second elastic sheet 432 is fixed on the second stay 42, and the fixing manner of the second elastic sheet 432 is the same as that of the first elastic sheet 431, and thus detailed description is omitted.

The first elastic piece 431 and the second elastic piece 432 are both arc-shaped elastic pieces, and both are protruded towards the direction far away from the other. The free end of the first elastic sheet 431 and the free end of the second elastic sheet 432 are provided with engaging teeth 434 and engaging grooves 433 which are engaged with each other, so that the first elastic sheet 431 and the second elastic sheet 432 are fixedly connected. Of course, the fixing manner of the first resilient sheet 431 and the second resilient sheet 432 is not limited thereto. The free end of the first elastic sheet 431 refers to an end of the first elastic sheet 431 away from the first support rod 41, and the free end of the second elastic sheet 432 refers to an end of the second elastic sheet 432 away from the second support rod 42.

Of course, the structure of the stay elastic member 43 is not limited thereto, and the object of the present invention can still be achieved by using, for example, a torsion spring.

The first support rod 41 and/or the second support rod 42 are/is fixedly provided with a limiting block 40, when the expansion clamp 4 is expanded to the maximum angle, the first support rod 41 or the second support rod 42 is abutted against the limiting block 40 to prevent the expansion clamp 4 from being continuously expanded, so that discomfort of eyes caused by transition expansion of eyelid is avoided. Specifically, the side of the first stay bar 41 close to the limit ring 5 and the side of the second stay bar 42 far from the limit ring 5 are provided with a pointed protrusion, and when the expansion clip 4 is expanded to the maximum angle, the side of one of the first stay bar 41 and the second stay bar 42 is abutted against the pointed protrusion of the other, so as to perform the limiting function.

In order to improve comfort, elastic pads can be additionally arranged on the opposite sides of the first arc-shaped support rod 411 and the second arc-shaped support rod 421, so that the two arc-shaped support rods can support annular eyelids by the elastic pads, the eyelids can be prevented from being scratched by the two arc-shaped support rods, and safety and comfort are achieved. The elastic pad can be a rubber pad or a silica gel pad which is fixedly adhered to the arc-shaped stay bar.

Two sets of clamping arms 3 are symmetrically arranged at the left and right sides of the supporting plate 1. The one end that spacing ring 5 was kept away from to two sets of centre gripping arms 3 all is equipped with oblique leading surface 31, and two oblique leading surfaces 31 form the bell mouth, and the big footpath end of tapered mouth is greater than the width of bottle 01 towards bottle 01 and the width of big footpath end, ensures that bottle 01 is in the intermediate position, still can make centre gripping arm 3 adapt to the bottle 01 of different width. Specifically, the inclined angle of the inclined guide surfaces 31 is 15 degrees, and the inclined guide surfaces are inclined from the center of the support plate 1 to both sides. Of course, the width of the slanted guide surface 31 can be adjusted according to actual conditions.

Every group centre gripping arm 3 all is equipped with arc wall 32 towards one side of bottle 01, also is that the double-phase offside of two sets of centre gripping arms 3 all is equipped with arc wall 32, increases the area of contact of centre gripping arm 3 and bottle 01, presss from both sides tight bottle 01 reliably. Of course, a non-slip pad, such as a rubber pad or a silicone pad, may be added to each arc-shaped groove 32 to increase the friction between the clamping arms 3 and the bottle body 01, so as to further ensure that the two clamping arms 3 clamp the bottle body 01.

Each group of clamping arms 3 is integrally provided with a guide rod 33, the side surface of the support plate 1 is provided with a guide groove 11, and the guide rods 33 are arranged in the guide grooves 11, so that the clamping arms 3 slide linearly along the guide grooves 11 under the guide of the guide rods 33. The guide rod 33 is a cylindrical rod, and the outer diameter of the guide rod is larger than the width of the arm body of the holding arm 3, so that the holding arm 3 is clamped in the guide groove 11 by the guide rod 33. The guide groove 11 is an arc groove, the length of which can be set according to the width of the bottle body 01, and the guide groove 11 is provided with a gap, and the width of the gap is consistent with the width of the arm body of the clamping arm 3.

The guide groove 11 is closed at one end and open at the other end. A stop plate 8 is fixedly arranged at the notch of the guide groove 11, and a clamping arm elastic piece 7 is arranged between the guide rod 33 and the stop plate 8, so that the clamping arm 3 clamps the bottle body 01 by the reaction force exerted by the compression of the clamping arm elastic piece 7. The clamping arm elastic part 7 is a common cylindrical spring which is arranged in the guide groove 11. Of course, the stop plate 8 may be fixed directly at the notch of the guide groove 11 by interference connection. Of course, the stop plate 8 can also be fixed in the guide slot 11 by fastening screws, so that the fixing position of the stop plate 8 in the guide slot 11 can be flexibly adjusted, thereby adjusting the elastic force of the elastic member 7 of the clamping arm, and further adjusting the clamping force of the clamping arm 3.

The top of backup pad 1 is equipped with mounting groove 12, and the mounting groove 12 internal stability is equipped with articulated shaft 13, and stripper plate 2 is articulated the cooperation with articulated shaft 13. The limiting edge 121 is arranged on the groove edge of the mounting groove 12, and the position of the extrusion plate 12 is limited by the limiting edge 121, so that the bottle body 01 is prevented from being extruded in a transitional manner.

The rotating disc 61 is fixedly arranged at one end, far away from the bottle body 01, of the adjusting screw rod 6, and a groove is formed in the center of the rotating disc 61, so that fingers can press the rotating disc conveniently. The outer side surface of the rotating disc 61 is provided with a bulge, so that the friction force between the rotating disc 61 and fingers is increased, and the rotating disc 61 can be conveniently and reliably rotated. One end of the adjusting screw 6, which is far away from the rotating disc 61, is integrally provided with a spherical bulge 62, and the spherical bulge 62 is abutted against the bottle body 01, so that the adjusting screw 6 generates reliable extrusion force to extrude the bottle body 01.

The eye drop device provided by the invention is described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. The eye drop dropping device is characterized by comprising a supporting plate (1), an extrusion plate (2), two groups of clamping arms (3) used for clamping a bottle body (01) and a spreading clamp (4) used for spreading an eyelid by means of downward pressure, wherein the two groups of clamping arms (3) are oppositely arranged on two sides of the supporting plate (1), a limiting ring (5) used for limiting the position of an inserted bottle mouth is arranged at the bottom of the supporting plate (1), and the two groups of spreading clamps (4) are positioned under the bottle mouth and are respectively hinged to two sides of the limiting ring (5); the extrusion plate (2) is hinged to the top of the support plate (1), and the extrusion plate (2) is provided with an adjusting screw rod (6) which is abutted against the bottle body (01); when the adjusting screw (6) is screwed in for a preset number of turns according to a preset dosage to be dripped, the adjusting screw (6) is pressed, the bottle body extrudes the liquid medicine with the preset dosage, and the extrusion plate (2) is close to the bottle body (01) until being abutted against the limiting edge (121) of the support plate (1).

2. The eye drop dripping device according to claim 1, wherein the spreading clamp (4) comprises a first support rod (41) and a second support rod (42) hinged at two ends, the first support rod (41) and the second support rod (42) are respectively provided with an arc-shaped support rod protruding outwards and downwards, and the arc-shaped support rod comprises an inner side surface with the radian consistent with the radian of the eyeball and an outer side surface extending along the tangential direction of the eyeball.

3. The eye drop dripping device according to claim 2, wherein the spreading clip (4) comprises a stay elastic member (43) fixed between the first stay (41) and the second stay (42).

4. An eye drop dripping device according to claim 3, wherein the stay elastic member (43) comprises a first elastic sheet (431) and a second elastic sheet (432) which are oppositely arranged and one ends of which are respectively fixed to the first stay (41) and the second stay (42), and free ends of the first elastic sheet (431) and the second elastic sheet (432) are provided with engaging teeth (434) and engaging grooves (433) which are engaged with each other.

5. The eye drop device according to claim 2, wherein a stopper (40) for limiting a rotation angle of one with respect to the other is fixed to the first stay (41) and/or the second stay (42).

6. An eye drop dripping device according to any one of claims 1 to 5, wherein both sets of gripping arms (3) are provided with a beveled guide surface (31) at the end remote from the stop collar (5), the beveled guide surfaces (31) forming a tapered mouth for guiding the bottle (01) into the space between the gripping arms (3).

7. Eye drop dripping device according to claim 6, wherein each set of gripping arms (3) is provided with an arc-shaped slot (32) on the side facing the bottle (01).

8. The eye drop dripping device according to claim 6, wherein each group of the holding arms (3) is integrally provided with a guide rod (33), the side surface of the support plate (1) is provided with a guide groove (11) matched with the guide rod (33), a stop plate (8) is fixedly arranged at the notch of the guide groove (11), and a holding arm elastic member (7) is arranged between the guide rod (33) and the stop plate (8).

9. The eye drop dripping device according to any one of claims 1 to 5, wherein the supporting plate (1) is provided with a mounting groove (12), the pressing plate (2) is hinged in the mounting groove (12) by a hinge shaft (13), and the stopper rib (121) is located at the groove edge of the mounting groove (12).

10. The eye drop dripping device according to claim 5, wherein a rotary disk (61) is fixedly provided at an end of the adjusting screw (6) remote from the bottle body (01).