CN220513262U

CN220513262U - Drug administration device

Info

Publication number: CN220513262U
Application number: CN202321430393.0U
Authority: CN
Inventors: 王玉婷; 伊海金
Original assignee: Beijing Tsinghua Changgeng Hospital
Current assignee: Beijing Tsinghua Changgeng Hospital
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2024-02-23
Anticipated expiration: 2033-06-06

Abstract

The utility model discloses a drug delivery device, which comprises: a medicine storage bottle; the medicine storage bottle is provided with a medicine storage space; a pumping assembly, at least a portion of which is mounted within the drug storage space; the drug delivery tube is communicated with the pumping assembly, the drug delivery tube is provided with a drug delivery end, the peripheral wall of the drug delivery end is provided with a drug delivery hole communicated with the drug delivery tube, and the pumping assembly is configured and suitable for pumping the drug in the drug storage space into the drug delivery tube. Therefore, according to the drug feeder provided by the embodiment of the utility model, the drug feeding effect of single-hand operation of a user is realized through the matching assembly of the drug storage bottle, the pumping assembly and the drug feeding pipe, and the drug feeding hole is formed in the peripheral wall of the drug feeding end, so that the drug can be accurately attached to the inner peripheral wall of the external auditory canal, the drug feeder can be applied to treating ear diseases, the drug is effectively prevented from being attached to the tympanic membrane, and compared with the prior art, the situation that the hearing of the user is influenced due to the fact that the drug is attached to the tympanic membrane can be effectively avoided.

Description

Drug administration device

Technical Field

The utility model relates to the field of medical instruments, in particular to a drug feeder.

Background

In the related art, in the treatment of ear diseases (e.g., eczema of external auditory meatus, inflammation of various external auditory meatus), and in the dressing change process during and after the period of the external auditory meatus lesion, it is necessary to adhere the medicine to the inner peripheral wall of the external auditory meatus.

At present, medicines used for external auditory meatus are roughly divided into two forms of cream and liquid, when the medicines are in the form of cream, the medicines are usually extruded to a cotton swab and extend into the external auditory meatus through the cotton swab, so that the effect of smearing the medicines on the inner peripheral wall of the external auditory meatus is realized, but the administration mode has certain problems, for example, the cream is extruded to a fine cotton swab, the tympanic membrane is easy to stick when the dosage is too much, and the administration mode is inconvenient for a user to operate by one hand, so that the administration mode is inconvenient for the old, the solitary and the handicapped.

When the medicine is in a liquid form, the medicine is generally dripped into the auditory canal by adopting a dripping medicine administration mode, the auricle is required to be pulled by the head of a user side in the medicine feeding process, the existing medicine feeder is aligned to the external auditory canal and the bottle body is extruded, so that the medicine stored in the bottle body is extruded into the external auditory canal, and the medicine administration mode is inconvenient for the user to operate by one hand and is inconvenient for the old, the solitary and the disabled to use.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a drug delivery device, which enables a user to perform one-hand drug delivery and can prevent the drug from adhering to the tympanic membrane of the ear, thereby facilitating the one-hand drug delivery of the user and improving the user experience.

The applicator according to the present utility model comprises:

a medicine storage bottle; the medicine storage bottle is provided with a medicine storage space;

a pumping assembly, at least a portion of which is mounted within the drug storage space;

the drug delivery tube is communicated with the pumping assembly, the drug delivery tube is provided with a drug delivery end, the peripheral wall of the drug delivery end is provided with a drug delivery hole communicated with the drug delivery tube, and the pumping assembly is configured and suitable for pumping the drug in the drug storage space into the drug delivery tube.

According to the drug feeder, the drug storage bottle, the pumping assembly and the drug feeding tube are assembled in a matched mode, so that the drug feeding effect of a user in a single-hand operation mode is achieved, and the drug feeding hole is formed in the peripheral wall of the drug feeding end, so that the drug can be accurately attached to the inner peripheral wall of an external auditory canal, the drug feeder can be applied to treatment of ear diseases, such as external auditory canal eczema, various external auditory canal inflammations, external auditory canal pathological peri-operation periods, postoperative drug replacement and the like, and the drug is effectively prevented from being attached to the tympanic membrane.

In some examples of the utility model, the pumping assembly has a drug delivery channel and the drug delivery tube has a drug delivery channel, the drug delivery channel communicating with the drug storage space, the drug delivery channel communicating with the drug delivery channel and the drug delivery aperture.

In some examples of the utility model, the drug delivery aperture is a plurality of.

In some examples of the utility model, the plurality of drug delivery holes form a plurality of circles of drug delivery hole groups, the plurality of circles of drug delivery hole groups are arranged along a length direction of the drug delivery tube, and the plurality of drug delivery holes of each circle of drug delivery hole groups are arranged along a circumferential direction of the drug delivery tube.

In some examples of the utility model, the plurality of drug delivery holes are aligned along the length of the drug delivery tube and at least two drug delivery holes are staggered along the circumference of the drug delivery tube.

In some examples of the utility model, the administration tube is removably mounted to the pumping assembly.

In some examples of the utility model, the pumping assembly has a push member to which the administration tube is mounted, and the drug in the drug storage space is pumped into the administration tube by pressing the push member.

In some examples of the utility model, at least a portion of the administration tube is a flexible structure.

In some examples of the utility model, the length of the administration tube is L1, satisfying the relationship: l1 is more than or equal to 20mm and less than or equal to 30mm;

the width of the administration tube is L2, and the relation is satisfied: l2 is more than or equal to 4mm and less than or equal to 7mm.

In some examples of the utility model, the drug delivery device has a dust cap adapted to be placed over the drug delivery tube.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a cross-sectional view of an applicator according to an embodiment of the present utility model;

FIG. 2 is a schematic view of an external auditory canal into which an administration tube according to an embodiment of the present utility model extends;

FIG. 3 is a cross-sectional view at A-A in FIG. 2;

fig. 4 is a schematic structural view of an administration tube according to a first embodiment of the present utility model;

fig. 5 is a schematic structural view of an administration tube according to a second embodiment of the present utility model;

fig. 6 is a schematic structural view of an applicator according to a first embodiment of the present utility model;

fig. 7 is a schematic view of the structure of a dispenser according to a second embodiment of the utility model;

fig. 8 is a schematic structural view of a dispenser according to a third embodiment of the present utility model.

Reference numerals:

a drug delivery device 100;

a medicine storage bottle 1; a medicine storage space 10;

a pumping assembly 2; a pressing member 20; a medication delivery channel 21; a housing chamber 22; a pressing portion 23;

a drug administration tube 3; a drug delivery end 30; a medicine feed hole 31; a drug delivery channel 32; a second connection portion 33;

a dust cover 4;

an external auditory meatus 200; tympanic membrane 210.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The following describes the applicator 100 according to the embodiment of the present utility model with reference to fig. 1 to 8, and the applicator 100 may be applied to the external auditory canal 200 of the ear for applying the drug, but the present utility model is not limited thereto, and the applicator 100 may be applied to other situations where the applicator 100 needs to be applied, for example, the applicator 100 may also be applied to a nasal cavity or an oral cavity, etc., and the application will be described with reference to the application of the applicator 100 to the external auditory canal 200 of the ear for applying the drug.

The tympanic membrane is an important sound transmission structure of the ear: the tympanic membrane can separate the middle ear cavity from the external auditory canal so that the middle ear cavity completely forms a closed space, and dust, insects and other pollutants in the external auditory canal are blocked, thereby avoiding the infection of the middle ear cavity.

In addition, there are two types of sound conduction, one is air conduction and the other is bone conduction. The air conduction is also most important, through the auricle, the external auditory canal, to the tympanic membrane, to the ossicles, to the vestibular window, to the cochlea, to the nerves, and thus to the brain. In the conduction of sound, the eardrum plays an important role.

As shown in fig. 1, a dispenser 100 according to an embodiment of the present utility model includes: the medicine storage bottle 1, the pumping assembly 2 and the medicine feeding tube 3, the medicine storage bottle 1 is formed with a medicine storage space 10, medicine is stored in the medicine storage space 10, the effect that the medicine feeding device 100 has stored medicine is achieved, at least part of the pumping assembly 2 is installed in the medicine storage space 10, the medicine feeding tube 3 is communicated with the pumping assembly 2, the medicine feeding tube 3 is provided with a medicine feeding end 30, the peripheral wall of the medicine feeding end 30 is provided with a medicine feeding hole 31 communicated with the medicine feeding tube 3, and the pumping assembly 2 is configured and suitable for pumping medicine in the medicine storage space 10 into the medicine feeding tube 3.

In the process of applying medicine to a user, the user can hold the outer surface of the medicine storage bottle 1 by hand, so that the user can grasp the medicine feeder 100 conveniently, so that the user can stretch the medicine feeding tube 3 into the external auditory canal 200 by one hand, when the medicine feeding tube 3 stretches into the external auditory canal 200, at least part of the structure of the medicine feeding tube 3 is positioned in the external auditory canal 200 of the user, medicine in the medicine storage space 10 is pumped into the medicine feeding tube 3 through the pumping assembly 2, the medicine is discharged from the medicine feeding hole 31 out of the medicine feeding tube 3, the medicine is attached to the inner peripheral wall of the external auditory canal 200, the effect of applying medicine by one hand of the user is realized, and the medicine feeder 100 can be applied to treating ear diseases, such as eczema of the external auditory canal, inflammation of various external auditory canal diseases, perioperative period of the external auditory canal lesions, postoperative medicine changing and the like.

In addition, as shown in fig. 1 to 3, by providing the drug delivery hole 31 in the peripheral wall of the drug delivery end 30, the drug can be accurately attached to the inner peripheral wall of the external auditory canal 200 during the process of discharging the drug from the drug delivery hole 31 to the drug delivery tube 3, and the drug can be effectively prevented from attaching to the tympanic membrane 210, and the situation affecting the hearing of the user due to the attachment of the drug to the tympanic membrane 210 can be effectively avoided, compared with the prior art.

In some embodiments, as shown in fig. 1, the medicine storage bottle 1 may have an open end, the open end is in communication with the medicine storage space 10, the pumping assembly 2 is adapted to be mounted to the medicine storage bottle 1, and at least part of the structure of the pumping assembly 2 is adapted to extend into the medicine storage space 10 from the open end during the process of mounting the pumping assembly 2 to the medicine storage bottle 1, so that the effect of mounting at least part of the pumping assembly 2 in the medicine storage space 10 is achieved, so that the pumping assembly 2 can be used to suck the medicine stored in the medicine storage space 10 and pump the medicine to the medicine feeding tube 3 through the pumping assembly 2, and the medicine flows along the medicine feeding tube 3 to the medicine feeding hole 31, so that the medicine is discharged from the medicine feeding tube 3, thereby achieving the effect of accurately attaching the medicine to the inner peripheral wall of the external auditory meatus 200, so that the medicine feeding device 100 can be applied to treat ear diseases.

Thus, according to the dispenser 100 of the embodiment of the present utility model, the effect of administering the medicine by one hand operation of the user is achieved by the cooperation and assembly of the medicine storage bottle 1, the pumping assembly 2 and the medicine administration tube 3, and the medicine delivery hole 31 is provided on the circumferential wall of the medicine delivery end 30, so that the medicine can be accurately attached to the inner circumferential wall of the external auditory meatus 200, the effect that the dispenser 100 can be applied to treat the ear diseases is achieved, and the medicine is effectively prevented from being attached to the tympanic membrane 210, and compared with the prior art, the situation that the hearing of the user is affected due to the attachment of the medicine to the tympanic membrane 210 can be effectively prevented.

In some embodiments of the present utility model, the volume of the drug storage space 10 is Q, satisfying the relationship: q is 3ml or less and 20mm or less, Q can be selected to be 3ml, 5ml, 8ml, 10ml, 12ml, 15ml or 20ml or the like, Q is selected to be 10ml or less in some embodiments of the utility model, so that the volume of the medicine storage bottle 1 is reduced, the medicine dispenser 100 is smaller, a user can conveniently carry the medicine dispenser 100, and meanwhile, Q is 3ml or less and 20mm or less according to the embodiment of the utility model, so that the user is not limited when carrying the medicine dispenser 100 on a vehicle such as an airplane or the like, and the user can conveniently carry the medicine dispenser 100 on the vehicle such as the airplane or the like.

In some embodiments of the present utility model, the outer surface of the medicine storage bottle 1 may be provided with an anti-slip portion, so that the friction between the hand of the user and the medicine storage bottle 1 is increased during the process of the medicine dispenser 100, thereby reducing the risk of slipping of the medicine dispenser 100 and further facilitating the single-hand operation of the user for medicine feeding.

In some embodiments, the anti-slip portion may be configured as anti-slip bumps, where the anti-slip bumps are all disposed on the outer surface of the drug storage bottle 1, and the anti-slip bumps are protruded on the outer surface of the drug storage bottle 1, so that the user can achieve the effect of increasing the friction between the user's hand and the drug storage bottle 1 during the process of grabbing the drug storage bottle 1, thereby reducing the risk of slipping of the drug dispenser 100.

In other embodiments, the anti-slip portion may be configured as an anti-slip cross bar, the anti-slip cross bar is disposed around the outer surface of the medicine storage bottle 1 along the circumferential direction of the medicine storage bottle 1, the anti-slip cross bar protrudes from the medicine storage bottle 1, and the plurality of anti-slip cross bars are sequentially disposed at intervals along the height direction of the medicine storage bottle 1, so that the user can achieve the effect of increasing the friction force between the user's hand and the medicine storage bottle 1 in the process of grabbing the medicine storage bottle 1, thereby reducing the risk of the drug dispenser 100 slipping.

In some embodiments of the present utility model, as shown in fig. 1, the pumping assembly 2 has a medicine delivery channel 21, the medicine delivery tube 3 has a medicine delivery channel 32, and the medicine delivery channel 21 communicates with the medicine storage space 10, and the medicine delivery channel 32 communicates with the medicine delivery channel 21 and the medicine delivery hole 31, thereby achieving the effect that the medicine delivery hole 31 communicates with the medicine storage space 10, so that medicine stored in the medicine storage space 10 can be delivered to the medicine delivery hole 31, and thus achieving the effect that the medicine is discharged through the medicine delivery hole 31.

In some embodiments, when a user applies medicine, the medicine stored in the medicine storage space 10 is sucked into the medicine delivery path 21 by the pumping assembly 2, then flows into the medicine delivery path 32 along the medicine delivery path 21, and flows to the medicine delivery hole 31 along the medicine delivery path 32, so that the medicine is discharged from the medicine delivery hole 31 out of the medicine delivery tube 3, and the medicine is attached to the inner circumferential wall of the external auditory meatus 200, so that the effect that the user uses the medicine applicator 100 for applying medicine to the external auditory meatus 200 can be achieved.

In some embodiments of the present utility model, as shown in fig. 4 and 5, the drug delivery holes 31 are plural, and two adjacent drug delivery holes 31 are spaced apart, so that the drug discharged from the plurality of drug delivery holes 31 of the drug delivery tube 3 can be more uniformly attached to the inner peripheral wall of the external auditory canal 200 of the user, and compared with the prior art, the drug delivery tube 3 is advantageous in avoiding the situation that the drug is not attached to the inner peripheral wall part area of the external auditory canal 200 when the drug is applied due to negligence of the user, thereby effectively improving the drug application effect by one-hand operation, and further being advantageous in improving the therapeutic effect.

In some embodiments of the present utility model, as shown in fig. 4, the plurality of drug delivery holes 31 form a plurality of circles of drug delivery hole groups, the plurality of drug delivery holes 31 of each circle of drug delivery hole group are arranged along the length direction of the drug delivery tube 3, and the plurality of drug delivery holes 31 of each circle of drug delivery hole group are arranged along the circumference direction of the drug delivery tube 3, so that the effect that the plurality of drug delivery holes 31 are arranged on the circumference wall of the drug delivery end 30 is achieved, the drugs can be more uniformly attached to the inner circumference wall of the external auditory canal 200, the situation that no drug is attached to a part of the inner circumference wall of the external auditory canal 200 during drug delivery due to negligence of a user is further avoided, the drug delivery effect is effectively improved, and the therapeutic effect is further improved.

In some embodiments, as shown in fig. 4, the X direction in fig. 4 is the length direction of the administration tube 3, each circle of the administration hole set has a plurality of administration holes 31, the plurality of administration holes 31 are sequentially arranged and spaced apart along the circumferential direction of the administration tube 3 to form one circle of administration hole set, and the plurality of circles of administration hole sets are sequentially spaced apart along the X direction, so that the plurality of administration holes 31 are uniformly arranged on the circumferential wall of the administration end 30, so that the medicine can be uniformly adhered to the inner circumferential wall of the external auditory canal 200 of the user when the medicine is discharged from the administration hole 31.

In some embodiments of the present utility model, as shown in fig. 5, a plurality of medicine feed holes 31 are arranged in the longitudinal direction of the medicine feed tube 3, and at least two medicine feed holes 31 are staggered in the circumferential direction of the medicine feed tube 3, so that the plurality of medicine feed holes 31 form a "spiral-like" arrangement on the circumferential wall of the medicine feed end 30, so that the medicine can be uniformly adhered to the inner circumferential wall of the external auditory canal 200 of the user when the medicine is discharged from the medicine feed holes 31 to the medicine feed tube 3.

In some embodiments of the present utility model, as shown in fig. 1, 4 and 5, the administration tube 3 is detachably mounted to the pumping assembly 2, so that the effect of replacing the administration tube 3 can be achieved, so that the administration tube 3 with a different structure form is suitable for being mounted to the pumping assembly 2, for example, the administration tube 3 with a different arrangement form of the administration holes 31 can be replaced, or the administration tube 3 with a different length size can be replaced, thereby achieving the effect of replacing the administration tube 3 with a different structure form of the administration tube 100, so that the administration tube 100 can be applied to different use situations, for example, the administration tube 100 can be applied to the site of the ear, the nasal cavity, the oral cavity, etc.

In addition, the administration tube 3 is removably mounted to the pumping assembly 2, which is advantageous in reducing the packaging volume for the administration set 100. In the process of packaging the drug delivery device 100, the drug delivery tube 3 is detached from the pumping assembly 2, so that the drug delivery tube 3 is separated from the pumping assembly 2, and compared with the shape of the drug delivery device 100 when the drug delivery tube 3 is arranged on the pumping assembly 2, the drug delivery device is beneficial to reducing the volume for packaging the drug delivery device 100, thereby realizing the effect of reducing the cost of packaging the drug delivery device 100, facilitating the transportation of the drug delivery device 100 and reducing the transportation cost.

In some embodiments of the present utility model, as shown in fig. 4 and 5, the pumping assembly 2 has a first connection portion and the administration tube 3 has a second connection portion 33, the first connection portion being adapted to cooperate with the second connection portion 33, thereby achieving the effect of a fixed fitting of the administration tube 3 to the pumping assembly 2.

In some embodiments, fig. 4 and 5, the first connecting portion may be configured as a groove structure, and the inner peripheral wall of the first connecting portion has an internal thread, one end of the administration tube 3, which is assembled with the pumping assembly 2, is provided with the second connecting portion 33, the second connecting portion 33 may be configured as an external thread, and in the process of assembling the administration tube 3 and the pumping assembly 2, one end of the administration tube 3, which is provided with the second connecting portion 33, extends into the first connecting portion, and is screwed and matched with the first connecting portion and the second connecting portion 33, so that the effect of fixedly assembling the administration tube 3 to the pumping assembly 2 is achieved, and when the administration tube 3 is assembled with the pumping assembly 2, the administration channel 32 is correspondingly matched with the administration channel 21, so that the effect of communicating the administration channel 32 with the administration channel 21 is achieved.

In other embodiments, the first connecting portion may be configured as a groove structure, and the inner peripheral wall of the first connecting portion has a clamping hole, the second connecting portion 33 may be configured as a clamping block, the clamping block is suitable for being matched with the clamping hole in a clamping manner, in the process of matching and assembling the administration tube 3 and the pumping assembly 2, one end of the administration tube 3, which is provided with the second connecting portion 33, extends into the first connecting portion, and is matched with the first connecting portion and the second connecting portion 33 in a clamping manner, so that the effect of fixedly assembling the administration tube 3 on the pumping assembly 2 is achieved, the administration channel 32 is matched with the administration channel 21 correspondingly, and the effect of communicating the administration channel 32 with the administration channel 21 is achieved.

In some embodiments of the present utility model, as shown in fig. 1, the pumping assembly 2 has a pressing piece 20, the administration tube 3 is mounted on the pressing piece 20, and the medicine in the medicine storage space 10 is pumped into the administration tube 3 by pressing the pressing piece 20, so that the medicine is attached to the inner circumferential wall of the external auditory canal 200 through the medicine delivery hole 31, thereby achieving the effect of one-hand operation of medicine administration by a user.

In some embodiments, the pumping assembly 2 may further have a pressing pump, the pressing member 20 is connected to the pressing pump, and the pressing pump is disposed in the drug delivery channel 21, and the drug flows through the drug delivery channel 21 under the action of the pressing pump, so that the drug flows into the drug delivery channel 32 through the drug delivery channel 21.

In the process of pumping the medicine by the pumping assembly 2, the pressing piece 20 is pressed, so that the pressing piece 20 drives the pressing pump, the pressure in the accommodating cavity 22 of the pressing pump is reduced, the pressure in the accommodating cavity 22 is smaller than the pressure in the medicine storage space 10, under the action of pressure difference, the medicine stored in the medicine storage space 10 is sucked into the medicine conveying channel 21 and flows into the accommodating cavity 22 along the medicine conveying channel 21, and after flowing through the accommodating cavity 22, the medicine can continuously flow into the medicine conveying channel 32 along the medicine conveying channel 21, so that the pumping assembly 2 pumps the medicine stored in the medicine storage space 10 to the medicine conveying hole 31, the medicine is discharged out of the medicine conveying pipe 3 through the medicine conveying hole 31, and then the medicine can be attached to the inner peripheral wall of the external auditory meatus 200, and the medicine feeding effect is realized.

In some embodiments, during pumping of the drug by pumping assembly 2, a quantity of drug may be drawn into receiving cavity 22 each time pressure is applied by pressure element 20, thereby achieving a metered pumping of the drug into drug delivery channel 32. For example, when the volume of the accommodating chamber 22 is 5ml, each time the pressing member 20 is pressed, the pressing member 20 drives the pressing pump to suck 5ml of medicine into the accommodating chamber 22, when the pressing member 20 is pressed again, the pressing member 20 drives the pressing pump to pump 5ml of medicine originally stored in the accommodating chamber 22 to the medicine feeding channel 32 along the medicine feeding channel 21, and simultaneously the pressing pump sucks 5ml of medicine again, so that 5ml of medicine in the medicine storage space 10 flows into the accommodating chamber 22 along the medicine feeding channel 21 to be stored, and the medicine stored in the accommodating chamber 22 can be pumped to the medicine feeding channel 32 when the pressing member 20 is driven again.

Therefore, according to the pumping assembly 2 of the embodiment of the utility model, the effect of quantitatively pumping the medicine can be realized, and the medicine feeder 100 adopting the pumping assembly 2 can realize the effect of quantitatively pumping the medicine, so that the situation that the medicine dosage is too large or too small when a user takes medicine is avoided, a certain amount of medicine can be attached to the inner peripheral wall of the external auditory canal 200, and the treatment effect is further improved.

In some embodiments, the containment chamber 22 may contain a volume of drug D that satisfies the relationship: 0ml < D is less than or equal to 0.5ml, and D can be selected from 0.05ml, 0.1ml, 0.15ml, 0.2ml, 0.25ml, 0.3ml, 0.35ml, 0.4ml, 0.45ml or 0.5 ml. In some embodiments of the present utility model, illustrated with d=0.05 ml, when the physician recommends that 0.1ml of drug should be attached to the inner peripheral wall of the external auditory canal 200 per administration, the user may pump 0.05ml of drug per time by pressing the pumping assembly 2 twice, so that the applicator 100 pumps and attaches 0.1ml of drug to the inner peripheral wall of the external auditory canal 200. Thus, according to the dispenser 100 of the present utility model, a user can perform a one-hand operation of dispensing and a quantitative dispensing, so that a certain amount of medicine can be attached to the inner circumferential wall of the external auditory meatus 200, thereby facilitating the improvement of the therapeutic effect.

In some embodiments of the present utility model, as shown in fig. 1, at least a portion of the administration tube 3 is of a flexible structure so that the administration tube 3 can be bent and deformed to facilitate the extension of the administration tube 3 into the external auditory meatus 200. Because the external auditory canal 200 has a complex structure, the external auditory canal 200 is internally bent, and at least part of the administration tube 3 is of a flexible structure, so that the part of the administration tube 3 extending into the external auditory canal 200 can be bent and deformed at will, thereby facilitating the extension of the administration tube 3 into the external auditory canal 200, and the flexible administration tube 3 is not easy to damage the tympanic membrane 210 and the inner peripheral wall of the external auditory canal 200 in the process of extending into the external auditory canal 200.

In some embodiments, the administration tube 3 may be made of a flexible material such as a silicone material or TPE (Thermoplastic Elastomer ), and the utility model uses a silicone material as an example of the administration tube 3, so as to achieve the effect that the administration tube 3 is configured as a flexible structure.

In some embodiments of the present utility model, as shown in fig. 4 and 5, the length of the administration tube 3 is L1, satisfying the relation: l1 is 20mm or less and 30mm or less, L1 can be a value of 20mm, 22mm, 25mm, 27mm or 30mm or the like, and L1=25 mm is taken as an example in some embodiments of the utility model.

It should be noted that, the length of the external auditory canal 200 of the adult is approximately 25mm-35mm, where the tympanic membrane 210 is located at one end of the external auditory canal 200, and by selecting the length l1=25 mm of the administration tube 3, the risk that the administration tube 3 touches the tympanic membrane 210 during the process of inserting the administration tube 3 into the external auditory canal 200 by the user is advantageously reduced, thereby reducing the risk that the tympanic membrane 210 is injured during the administration of the drug by the user.

In addition, the length l1=25 mm of the administration tube 3 is selected, and when the administration tube 3 is mounted on the pumping assembly 2, a part of the structure of the administration tube 3 is located in the pumping assembly 2, so that the length of the administration tube 3 extending into the external auditory canal 200 is smaller than 25mm when a user applies medicine, thereby further reducing the risk that the administration tube 3 touches the tympanic membrane 210, and further reducing the risk that the tympanic membrane 210 is injured by the user in the process of applying medicine.

In some embodiments of the present utility model, as shown in fig. 3, the width of the administration tube 3 is L2, satisfying the relation: l2 is 4mm or less and 7mm or less, L2 may be a value of 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm or 7mm, and L2=5.5 mm is taken as an example in some embodiments of the present utility model.

The diameter of the external auditory canal 200 of an adult is approximately 7mm, and by selecting the width l2=5.5 mm of the administration tube 3, the administration tube 3 is facilitated to extend into the external auditory canal 200, and at the same time, since a certain gap exists between the outer surface of the administration tube 3 and the inner peripheral wall of the external auditory canal 200, the medicine is facilitated to be uniformly adhered to the inner peripheral wall of the external auditory canal 200 in the process of being ejected from the medicine delivery hole 31.

In addition, the cross section of the administration tube 3 may be configured as a circle or a polygon, for example, the cross section of the administration tube 3 may be configured as a polygon such as a rectangle, a triangle, a trapezoid, or the like, and the cross section of the administration tube 3 may also be an irregular polygon. As shown in fig. 3, taking the cross-sectional configuration of the administration tube 3 as a circle as an example in some embodiments of the present utility model, when the cross-sectional configuration of the administration tube 3 is a circle, i.e., the diameter of the administration tube 3 is L2.

In some embodiments of the present utility model, as shown in fig. 6-8, a first connection may be provided to the press 20 to adapt the administration tube 3 to be fixedly mounted to the press 20, thereby achieving the effect of fixedly mounting the administration tube 3 to the pumping assembly 2. In some embodiments, as shown in fig. 6, the administration tube 3 may be fixedly mounted to the circumferential wall of the pressing member 20 so that the dispenser 100 may have various forms, so that the dispenser 100 may be applied to different use scenarios. In other embodiments, as shown in fig. 7 and 8, the administration tube 3 may be fixedly fitted to the upper surface of the pressing member 20 in the height direction of the dispenser 100 (i.e., the up-down direction in fig. 7 and 8).

In some embodiments of the present utility model, as shown in fig. 6 to 7, the main structure of the administration tube 3 may be configured as a cylindrical structure, thereby facilitating the extension of the administration tube 3 into the external auditory meatus 200.

In some embodiments of the present utility model, as shown in fig. 8, the outer surface of the pressing member 20 is formed with a pressing portion 23 recessed toward the inside of the pumping assembly 2, as shown in fig. 8, so that when the administration tube 3 is assembled and fixed to the pressing member 20, the user can easily press the pressing member 20 by pressing the pressing portion 23 when the user presses the pressing member 20, thereby facilitating the user's one-hand operation of administering medicine.

In some embodiments of the utility model, the applicator 100 has a dust cap 4, the dust cap 4 being adapted to be placed over the administration tube 3, thereby avoiding contamination of the administration tube 3. In some embodiments, when the dust cap 4 is covered on the administration tube 3, at least part of the structure of the administration tube 3 is located in the dust cap 4, as shown in fig. 1, in some embodiments of the present utility model, when the dust cap 4 is covered on the administration tube 3, the region of the administration tube 3 provided with the drug delivery hole 31 is located in the dust cap 4 in the length direction of the administration tube 3, so as to prevent contaminants such as dust from polluting the drug stored in the drug delivery device 100 from the drug delivery hole 31, and to be beneficial to avoiding the contaminants from adhering to the outer surface of the administration tube 3, when a user uses the drug delivery device 100 to apply a drug, the user only needs to detach the dust cap 4 from the administration tube 3, and can wipe the outer surface of the administration tube 3 with a 75% alcohol cotton piece, thereby achieving the effect of sterilizing the administration tube 3.

In some embodiments of the present utility model, as shown in fig. 1, when the dust cap 4 is disposed on the administration tube 3, the structural shape of the dust cap 4 is adapted to the structural shape of the administration tube 3, and the administration tube 3 is adapted to be in interference fit with the dust cap 4, that is, when the dust cap 4 is disposed on the administration tube 3, the outer peripheral wall of the administration tube 3 is adapted to be in interference fit with the inner peripheral wall of the dust cap 4, so as to achieve the effect that the dust cap 4 is fixedly disposed on the administration tube 3.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. An applicator, comprising:

a drug delivery tube in communication with the pumping assembly, and the drug delivery tube having a drug delivery end with a peripheral wall having a drug delivery aperture in communication with the drug delivery tube, the pumping assembly being configured and adapted to pump the drug within the drug storage space into the drug delivery tube.

2. The dispenser of claim 1, wherein the pumping assembly has a drug delivery channel and the drug delivery tube has a drug delivery channel, the drug delivery channel in communication with the drug storage space, the drug delivery channel in communication with the drug delivery channel and the drug delivery aperture.

3. The applicator of claim 1, wherein the drug delivery aperture is a plurality of.

4. A dispenser according to claim 3, wherein a plurality of said dispensing holes form a plurality of circles of said dispensing hole groups, said plurality of circles of said dispensing hole groups being arranged along a length direction of said dispensing tube, and a plurality of said dispensing holes of each circle of said dispensing hole groups being arranged along a circumferential direction of said dispensing tube.

5. A dispenser according to claim 3, wherein a plurality of said dispensing holes are arranged along the length of said dispensing tube and at least two of said dispensing holes are offset along the circumference of said dispensing tube.

6. The applicator of any one of claims 1-5, wherein the administration tube is removably mounted to the pumping assembly.

7. The dispenser of any one of claims 1 to 5, wherein the pumping assembly has a push member to which the administration tube is mounted, the medicament in the medicament storage space being pumped into the administration tube by pressing the push member.

8. The applicator of any one of claims 1-5, wherein at least a portion of the administration tube is of flexible construction.

9. The dispenser of any one of claims 1-5, wherein the length of the tube is L1, satisfying the relationship: l1 is more than or equal to 20mm and less than or equal to 30mm;

10. The dispenser of any one of claims 1 to 5, wherein the dispenser has a dust cap adapted to be capped on the administration tube.