Tympanic cavity injection device and medicine applying method

Abstract

The invention relates to the technical field of inner ear canal medicine applying, in particular to a tympanic cavity injection device and a medicine applying method. The tympanic cavity injection device comprises a fingerboard and a dropping pipette fixedly installed on the fingerboard; a medicine clamping plate is arranged on the finger plate in a sliding mode, and a pressing plate is arranged on the medicine clamping plate in a sliding mode; a medicine clamping groove is formed in the medicine clamping plate; a medicine table communicated with the dropping pipette is fixedly mounted on the finger plate; a plurality of groups of ear expanding mechanisms are arranged on the finger plate, ear expanding plates which are arranged on the finger plate in a sliding manner are connected to the ear expanding mechanisms, and the dropping pipette is wrapped by the plurality of ear expanding plates; the ear expanding mechanism can drive the ear expanding plate to be far away from the dropping pipette when the medicine clamping plate is close to the finger plate; a medicine feeding mechanism is arranged on the fingerboard, and the medicine feeding mechanism can squeeze the injection device so that medicine liquid can pass through the liquid dropping pipe; and a regulation and control mechanism is arranged on the pressing plate, and the regulation and control mechanism can increase or decrease the pressing amount obtained by the medicine feeding mechanism.

Description

Technical Field

[0001] The invention relates to applying medicine to the inner ear canal, in particular to a tympanic cavity injection device and a medicine applying method. Background Art

[0002] The internal auditory canal is a short tube in the posterior part of the petrous part of the temporal bone, with one end opening behind the petrous part and the other end ending at the bottom of the internal auditory canal. The internal auditory canal is connected to the external auditory canal. Under normal circumstances, the ear canal is S-shaped to reduce the probability of foreign matter entering the internal auditory canal and effectively protect the internal auditory canal.

[0003] Ear canal medicine is generally used to treat diseases such as otitis and otitis media. After cleaning the ear canal, you can use medical alcohol to disinfect the ear canal, which can kill bacteria and reduce inflammation. It can usually be used to treat diseases caused by bacterial infections. Common ways to apply medicine to the inner ear canal include wiping with a cotton swab and direct drops.

[0004] When using a cotton swab to wipe, due to the small conduction area of ​​the ear canal, the wet cotton swab will inevitably absorb and bring foreign matter into the inner auditory canal during the process of inserting it into the inner auditory canal, which is not conducive to the treatment of the inner auditory canal; while using the direct drip method, the S-shaped ear canal will absorb and consume the liquid medicine. If too little liquid is dripped, the liquid medicine cannot enter the inner auditory canal, and too much liquid dripping will cause discomfort to the patient. Summary of the invention

[0005] The object of the present invention is to provide a tympanic injection device and a drug delivery method to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A tympanic injection device comprises a fingerboard and a dropper fixedly mounted on the fingerboard; a medicine holding plate is slidably mounted on the fingerboard, a pressing plate is slidably mounted on the medicine holding plate; a medicine holding slot is provided on the medicine holding plate; a medicine table connected to the dropper is fixedly mounted on the fingerboard;

[0008] The fingerboard is provided with a plurality of ear-expanding mechanisms, the ear-expanding mechanisms are connected with ear-expanding plates slidably arranged on the fingerboard, and the plurality of ear-expanding plates surround the dripping tube; the ear-expanding mechanisms can drive the ear-expanding plates away from the dripping tube when the medicine-blocking plate approaches the fingerboard, so as to expand the ear canal;

[0009] The end of the dropper is provided with a needle that penetrates the eardrum; the needle is disposable;

[0010] The medicine table is provided with an injection device, the bottom end of which is connected to and communicated with the dropper, the injection device passes through the medicine slot, and the telescopic end of the injection device is connected to the pressing plate, and the movement of the pressing plate can drive the telescopic end of the injection device to move downward or upward, thereby injecting the medicine in the injection device into the tympanic cavity through the dropper and the needle;

[0011] The finger plate is provided with a medicine feeding mechanism, which can squeeze the injection device when the pressing plate is close to the medicine holding plate, so that the medicine liquid passes through the dropper and the needle;

[0012] The pressing plate is provided with a regulating mechanism, which can increase or decrease the pressing amount of the medicine feeding mechanism to increase or decrease the amount of medicine liquid passing through the dropper.

[0013] As a further solution of the present invention: it also includes a visual component; the visual component includes a micro camera and a display; the display is fixed on the fingerboard, the display is connected to the micro camera, and the micro camera is arranged on one side of the dropper to display the position of the disposable dropper head.

[0014] As a further solution of the present invention: a plurality of sets of ear-expanding telescopic sleeves are fixedly installed on one side of the finger plate away from the drip tube, an ear-expanding telescopic column fixedly connected to the medicine-holding plate is slidably engaged in the ear-expanding telescopic sleeve, and a first spring fixedly connected to the ear-expanding telescopic column is fixedly installed in the ear-expanding telescopic sleeve;

[0015] A plurality of groups of medicine-applying telescopic sleeves are fixedly installed on one side of the medicine-applying plate away from the ear-expanding telescopic column, a medicine-applying telescopic column fixedly connected to the pressing plate is slidably embedded in the medicine-applying telescopic sleeve, and a medicine-applying spring fixedly connected to the medicine-applying telescopic column is fixedly installed in the medicine-applying telescopic sleeve;

[0016] A limit block is arranged on the telescopic sleeve, and the limit block is used to limit the movement amount of the telescopic sleeve, thereby limiting the movement stroke of the pressing plate to limit the injection amount of the injection device.

[0017] As a further solution of the present invention: the ear expansion mechanism includes a plurality of ear expansion grooves provided on the finger plate, an ear expansion slider fixedly connected to the ear expansion plate being slidably engaged in the ear expansion groove; a guide rod slidably connected to the finger plate is fixedly installed on the ear expansion slider, an ear expansion spring is wrapped around the guide rod, and two ends of the ear expansion slider are respectively fixedly connected to the finger plate and the ear expansion slider; a protruding column cooperating with the ear expansion slider is fixedly installed on the surface of the medicine plate close to the finger plate.

[0018] As a further solution of the present invention: the medicine applying mechanism includes a medicine applying sliding block fixedly connected to the regulating mechanism, and the middle portion of the medicine applying sliding block has an inclined surface that contracts toward the pressing plate.

[0019] As a further solution of the present invention: the regulating mechanism includes a connecting block fixedly installed on the pressing plate, the connecting block is provided with a medicine applying groove, a protruding block fixedly connected to the medicine applying slider is slidably engaged in the medicine applying groove, a screw column and a sliding rod fixedly connected to the medicine applying slider are slidably arranged on the pressing plate, and an internally threaded sleeve threadedly connected to the screw column is rotatably installed on the pressing plate.

[0020] As a further solution of the present invention: a first groove is formed on the fingerboard, and a second groove is formed on the pressing plate.

[0021] As a further solution of the present invention: one end of the ear expansion plate away from the fingerboard is bent toward the drip tube.

[0022] A method for applying medicine to a tympanic cavity injection device, comprising the following steps:

[0023] The first step is to place the injection device on the medicine table, align the medicine outlet with the dropper, place the bottle in the medicine slot, and set the amount of liquid medicine when the medicine feeding mechanism is in action through the regulating mechanism;

[0024] Step 2: Insert the dropper wrapped by the ear expansion plate into the patient's inner ear canal and penetrate the eardrum with the needle;

[0025] Step 3: Turn on the lighting; press the card medicine plate to bring the card medicine plate close to the finger plate to drive the ear expansion mechanism to drive the ear expansion plate away from the dropper, thereby expanding the ear canal. At this time, the pressing plate (5) is extended and the injection device is not squeezed;

[0026] Step 4: Press the pressing plate to bring it close to the medicine holding plate, so as to drive the medicine feeding mechanism to press the injection device so that the medicine liquid is injected into the patient's tympanic cavity through the dropper and the needle;

[0027] Step 5: Pull out the medication device, disinfect and clean it, and discard the needle.

[0028] Compared with the prior art, the beneficial effects of the present invention are: the ear expansion mechanism and the medicine application mechanism are driven to move by pressing the pressing plate, which is simple to operate and can effectively reduce the difficulty of applying medicine to the patient's inner ear canal; turning on the lighting is convenient for medical staff to clearly view the patient's ear condition and pass the needle through the eardrum; the ear expansion mechanism is used to expand the ear canal and make the curved ear canal straighter, which is convenient for observing the patient's ear condition; the ear expansion plate can effectively prevent debris and bacteria in the ear canal from directly contacting the dropper, and can effectively prevent the condition in the inner ear canal from further deteriorating, and after the medicine application is completed, the ear expansion plate can close the dropper; the regulating mechanism can increase or decrease the amount of medicine in the medicine application mechanism, and can increase the scope of use of the medicine application device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The present invention is a structural schematic diagram of an embodiment of a tympanic injection device and a medication administration method.

[0030] Figure 2 A structural schematic diagram of an embodiment of a tympanic injection device and a medication method from another perspective.

[0031] Figure 3 It is a structural schematic diagram of a fingerboard in one embodiment of a tympanic injection device and a drug delivery method.

[0032] Figure 4 for Figure 3 Schematic diagram of the structure from a cross-sectional perspective.

[0033] Figure 5 It is a schematic diagram of the structure of an ear expansion plate in one embodiment of a tympanic cavity injection device and a medication method.

[0034] Figure 6 It is a structural schematic diagram of a medicine holding plate in one embodiment of a tympanic injection device and a medicine delivery method.

[0035] Figure 7 It is a schematic diagram of the structure of a pressing plate in one embodiment of a tympanic injection device and a medication method.

[0036] In the figure: 1, fingerboard; 101, dropper; 102, medicine table; 103, ear expansion telescopic sleeve; 104, ear expansion slide; 105, first groove;

[0037] 2. ear expansion plate; 201. ear expansion slider; 202. guide rod; 203. ear expansion spring;

[0038] 3. The first spring;

[0039] 4. Medicine clamping plate; 401. Protruding column; 402. Medicine feeding telescopic sleeve; 403. Ear expansion telescopic column; 404. Medicine clamping slot;

[0040] 5. Pressing plate; 501. Connecting block; 502. Medicine feeding slideway; 503. Medicine feeding telescopic column; 504. Internal thread sleeve; 505. Second groove;

[0041] 6. Medicine loading slider; 601. Protruding block; 602. Screw column; 603. Sliding rod;

[0042] 7. Medicine applying spring. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0045] See also Figure 1 to Figure 7 In an embodiment of the present invention, a tympanic injection device comprises a finger plate 1, and a dropper 101 fixedly mounted on the finger plate 1; a medicine holding plate 4 is slidably mounted on the finger plate 1, and a pressing plate 5 is slidably mounted on the medicine holding plate 4; a medicine holding groove 404 is provided on the medicine holding plate 4; a medicine table 102 connected to the dropper 101 is fixedly mounted on the finger plate 1;

[0046] The fingerboard 1 is provided with a plurality of ear-expanding mechanisms, and the ear-expanding mechanisms are connected with ear-expanding plates 2 slidably arranged on the fingerboard 1, and the plurality of ear-expanding plates 2 surround the dripping tube 101; the ear-expanding mechanisms can drive the ear-expanding plates 2 away from the dripping tube 101 when the medicine-holding plate 4 approaches the fingerboard 1, so as to expand the ear canal;

[0047] The end of the dropper 101 is provided with a needle that penetrates the eardrum; the needle is disposable;

[0048] The medicine table 102 is provided with an injection device, the bottom end of which is engaged with and communicated with the dropper 101, the injection device passes through the medicine slot 404, and its telescopic end is connected to the pressing plate 5, the movement of the pressing plate 5 can drive the telescopic end of the injection device to move downward or upward, and then the medicine in the injection device is injected into the tympanic cavity through the dropper 101 and the needle;

[0049] The finger plate 1 is provided with a medicine feeding mechanism, which can squeeze the injection device when the pressing plate 5 is close to the medicine holding plate 4, so that the medicine liquid passes through the dropper 101 and the needle;

[0050] The pressing plate 5 is provided with a regulating mechanism, which can increase or decrease the pressing amount of the medicine feeding mechanism to increase or decrease the amount of medicine liquid passing through the dropper 101 .

[0051] In this embodiment, a disposable injection nozzle is provided to avoid infection and is more convenient for patients and users. During use, the injection device is first placed on the medicine table 102, the medicine outlet of the injection device is aligned with the dropper 101, and the bottle body of the injection device is located in the medicine card slot 404. By setting a limit block on the telescopic sleeve 402 of the medicine feeding mechanism, the position of the limit block can be adjusted to achieve the adjustment of the medicine feeding amount; in this way, the amount of medicine liquid when the medicine feeding mechanism is in action can be set by the regulating mechanism according to the patient's condition; turn on the lighting, pass the needle through the patient's tympanic membrane, and after the needle is located in the tympanic cavity, the ear expansion plate 2 and the surrounding dropper 101 are extended into the patient's inner ear canal; by pressing the card medicine plate 4 close to the finger plate 1, the ear expansion mechanism drives the ear expansion plate 2 away from the dropper 101, thereby expanding the ear canal and making the curved ear canal become relatively straight, which is convenient for medical staff to observe the situation of drug injection in the tympanic cavity. Then continue to press the pressing plate 5 to bring it close to the medicine holding plate 4 to drive the medicine feeding mechanism to press the injection device until it reaches the position defined by the aforementioned limit block, then stop pressing to allow the medicine to enter the patient's tympanic cavity through the dropper 101.

[0052] In this embodiment, the ear expansion plate 2 can support the ear canal on the one hand, and provide stable support for the injection device and the medication mechanism on the other hand. In this way, during the medication process, the needle position remains relatively fixed and will not excessively damage the patient's eardrum.

[0053] The ear expansion mechanism is driven by pressing the medicine card plate 4, and the action of the medicine application mechanism is controlled by pressing the pressing plate 5. This method is simple to operate and can effectively reduce the difficulty of applying medicine to the patient's inner auditory canal; the ear expansion mechanism is used to expand the ear canal and make the curved ear canal straighter, which is convenient for medical staff to observe the injection situation and provide stable support for the injection process; the ear expansion plate 2 can effectively prevent debris and bacteria in the ear canal from directly contacting the dropper 101, and can effectively prevent the condition in the inner auditory canal from further deteriorating. After the medicine application is completed, the ear expansion plate 2 can close the dropper 101; the regulating mechanism can increase or decrease the amount of medicine in the medicine application mechanism, and can increase the scope of use of the medicine application device.

[0054] In this embodiment, the size of each component needs to meet the size required for use, that is, its diameter needs to be smaller than the patient's ear size. When the ear expansion plate 2 enters the patient's ear, the outer wall of the ear expansion plate 2 will not be squeezed with the inner wall of the patient's ear, which is convenient for the user to operate. When the ear needs to be expanded, the ear expansion plate 2 can be opened. It should be noted that in this embodiment, the size shown in the drawings does not represent the actual size of the product. The drawings are only for illustrating the structure of the device of this application. The specific size can be set by the user according to actual needs.

[0055] As a further solution of the present invention, it also includes a visual component; the visual component includes a miniature camera and a display; the display is fixed on the fingerboard, the display is connected to the miniature camera, and the miniature camera is arranged on one side of the dropper to display the position of the disposable dropper head.

[0056] In this embodiment, at present, in the process of applying medicine to the ear, it is generally necessary to use it with the assistance of an endoscope to avoid the instrument causing damage to the inner wall of the patient's ear; the purpose of setting up a micro camera is to provide a visual environment to avoid the instrument causing damage to the patient's ear. Specifically, if the patient's ear canal is small, it is necessary to use the ear expansion plate 2 in this application to open it, and then use the dropper 101 to drip the medicine to the affected part of the patient's ear.

[0057] As a further solution of the present invention, a plurality of sets of ear-expanding telescopic sleeves 103 are fixedly installed on one side of the finger plate 1 away from the drip tube 101, and an ear-expanding telescopic column 403 fixedly connected to the medicine card plate 4 is slidably engaged in the ear-expanding telescopic sleeve 103, and a first spring 3 fixedly connected to the ear-expanding telescopic column 403 is fixedly installed in the ear-expanding telescopic sleeve 103;

[0058] A plurality of groups of medicine applying telescopic sleeves 402 are fixedly installed on the side of the medicine holding plate 4 facing away from the ear expanding telescopic column 403, a medicine applying telescopic column 503 fixedly connected to the pressing plate 5 is slidably engaged in the medicine applying telescopic sleeve 402, and a medicine applying spring 7 fixedly connected to the medicine applying telescopic column 503 is fixedly installed in the medicine applying telescopic sleeve 402.

[0059] A limit block is provided on the telescopic sleeve 402, and the limit block is used to limit the movement of the telescopic sleeve 402, thereby limiting the movement stroke of the pressing plate 5 to limit the injection amount of the injection device;

[0060] In this embodiment, the above-mentioned limit block can be a limit ring. During use, the limit block can be set at a predetermined position according to the actual required drug injection volume. When the pressing plate is pressed to the position of the limit block, the required drug injection volume is reached. The medical staff can set the predetermined position according to different patients and different symptoms, and this application does not make specific limitations.

[0061] In this embodiment, the stiffness coefficient of the first spring 3 is smaller than the stiffness coefficient of the medicine-applying spring 7 (the larger the stiffness coefficient, the harder it is to compress the spring), so after the external force toward the finger plate 1 is applied to the pressing plate 5, the external force will first act on the medicine-holding plate 4, causing the medicine-holding plate 4 to gradually approach the finger plate 1, and the ear-expanding telescopic column 403 will slide inward in the ear-expanding telescopic sleeve 103 and compress the first spring 3; this process will drive the ear-expanding mechanism to operate. Of course, in actual use, the medicine-holding plate 4 can also be directly pressed to cause the medicine-holding plate 4 to drive the ear-expanding mechanism to operate.

[0062] After the first spring 3 is fully compressed, the external force toward the finger plate 1 continues to be applied to the pressing plate 5. This external force will gradually make the pressing plate 5 approach the medicine clamping plate 4, and the medicine application telescopic column 503 will slide inward in the medicine application telescopic sleeve 402 and compress the medicine application spring 7. This process will drive the medicine application mechanism to operate. By pressing the pressing plate 5 to drive the ear expansion mechanism and the medicine application mechanism to operate, this method is simple to operate and can effectively reduce the difficulty of applying medicine to the patient's inner ear canal.

[0063] As a further solution of the present invention, the ear expansion mechanism includes a plurality of groups of ear expansion grooves 104 opened on the fingerboard 1, and an ear expansion slider 201 fixedly connected to the ear expansion plate 2 is slidably engaged in the ear expansion groove 104; a guide rod 202 slidably connected to the fingerboard 1 is fixedly installed on the ear expansion slider 201, and an ear expansion spring 203 with two ends respectively fixedly connected to the fingerboard 1 and the ear expansion slider 201 is wrapped around the guide rod 202; a protruding column 401 cooperating with the ear expansion slider 201 is fixedly installed on the surface of the medicine plate 4 close to the fingerboard 1.

[0064] In this embodiment, a surface of the ear-expanding slider 201 close to the medicine-holding plate 4 is configured as a slope inclined toward the drip tube 101 .

[0065] When the medicine holding plate 4 approaches the finger plate 1, the protruding column 401 will contact the slope of the ear expansion slider 201 and squeeze the slope, so that the ear expansion slider 201 slides in the opposite direction away from the dropper 101 in the ear expansion slide groove 104, so that the guide rod 202 gradually moves away from the dropper 101 and compresses the ear expansion spring 203. The ear expansion plate 2 moves away from the dropper 101 synchronously with the sliding of the ear expansion slider 201, so that the ear expansion plate 2 squeezes the ear canal, expands the ear canal, and makes the curved ear canal become relatively straight, which is convenient for medical staff to observe the patient's tympanic injection situation; in addition, through the support of the ear expansion plate 2 and the inner wall of the patient's ear canal, stable support can be provided for drug injection to avoid damage to the patient's tympanic membrane; in addition, the ear expansion plate 2 can effectively prevent debris and bacteria in the ear canal from directly contacting the dropper 101, and can effectively prevent the condition in the inner auditory canal from further deteriorating.

[0066] It should be noted that during use, when the ear expansion plate 2 is in contact with the inner wall of the patient's ear canal for support, the needle has passed through the tympanic membrane and entered the tympanic cavity. At this time, the medical staff needs to continue pressing the above-mentioned medicine plate 4 to ensure stable support between the ear expansion plate 2 and the inner wall of the patient's ear canal.

[0067] As a further solution of the present invention, the medicine applying mechanism includes a medicine applying slider 6 fixedly connected to the regulating mechanism, and a middle portion of the medicine applying slider 6 has an inclined surface that contracts toward the pressing plate 5 .

[0068] In this embodiment, when the pressing plate 5 approaches the medicine holding plate 4, the medicine applying slider 6 will gradually approach the injection device; after the inclined surface of the medicine applying slider 6 contacts the bottle body, the inclined surface will squeeze the injection device, so that the medicine liquid will be squeezed out of the injection device and enter the affected part of the patient's inner ear canal through the dropper 101. When the pressing plate 5 is closest to the medicine holding plate 4, the closer the distance between the medicine applying slider 6 and the medicine holding plate 4 is, the greater the amount of medicine liquid in the medicine applying process.

[0069] As a further solution of the present invention, the regulating mechanism includes a connecting block 501 fixedly mounted on the pressing plate 5, a medicine applying groove 502 being opened on the connecting block 501, a protruding block 601 fixedly connected to the medicine applying slider 6 being slidably engaged in the medicine applying groove 502, a screw column 602 and a sliding rod 603 fixedly connected to the medicine applying slider 6 being slidably arranged on the pressing plate 5, and an internally threaded sleeve 504 threadedly connected to the screw column 602 being rotatably mounted on the pressing plate 5.

[0070] In this embodiment, the internal threaded sleeve 504 is rotated to drive the screw column 602 on the pressing plate 5 away from or close to the medicine holding plate 4 through threaded engagement, thereby driving the medicine applying slider 6 to be close to or away from the pressing plate 5. In this process, the protruding block 601 slides on the medicine applying slide groove 502, and the slide bar 603 slides on the pressing plate 5. According to the patient's condition, by setting the distance between the medicine applying slider 6 and the pressing plate 5 before pressing the pressing plate 5, the distance between the medicine applying slider 6 and the medicine holding plate 4 when the pressing plate 5 and the medicine holding plate 4 are closest to each other is determined, so as to adjust the amount of liquid medicine. The regulating mechanism can increase or decrease the amount of liquid medicine of the medicine applying mechanism, and can increase the use range of the medicine applying device.

[0071] As a further solution of the present invention, a first groove 105 is formed on the finger plate 1 , and a second groove 505 is formed on the pressing plate 5 .

[0072] In this embodiment, the first groove 105 is used to engage the finger, and the second groove 505 is used to engage the finger and provide a pressing point. The pressing plate 5 is pressed by the upper and lower fingers together, making the medication application process simpler.

[0073] As a further solution of the present invention, one end of the ear expansion plate 2 away from the fingerboard 1 is bent toward the drip tube 101 .

[0074] In this embodiment, the curved portion of the ear expansion plate 2 can seal the drip tube 101, and when the ear expansion plate 2 is extended into the ear canal, it can protect the ear canal from being damaged. After applying the medicine, the ear expansion plate 2 can seal the drip tube 101, and can effectively prevent the medicine from flowing back.

[0075] A method for applying medicine to a tympanic cavity injection device, comprising the following steps:

[0076] The first step is to place the injection device on the medicine table 102, align the medicine outlet with the dropper 101, and place the bottle in the medicine card slot 404. The amount of liquid medicine when the medicine feeding mechanism is in action is set by the regulating mechanism;

[0077] Step 2: Turn on the lighting, insert the dropper 101 surrounded by the ear expansion plate 2 into the patient's inner ear canal, and penetrate the eardrum with the needle;

[0078] Step 3: Press the medicine-holding plate 4 to bring it close to the finger plate 1, so as to drive the ear-expanding mechanism to drive the ear-expanding plate 2 away from the dropper 101, thereby expanding the ear canal. At this time, the pressing plate 5 is extended and does not squeeze the injection device.

[0079] Step 4: Press the pressing plate 5 to bring it close to the medicine holding plate 4, so as to drive the medicine feeding mechanism to press the injection device so that the medicine liquid is injected into the patient's tympanic cavity through the dropper 101 and the needle;

[0080] Step 5: Pull out the medication device, disinfect and clean it, and discard the needle.

[0081] In this embodiment, the structure of the present application is made of sterilizable materials, the entire structure can be sterilized and reused, and the needle is a disposable consumable.

[0082] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0083] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tympanic injection device, comprising a finger plate (1), and a dropper (101) fixedly mounted on the finger plate (1); a medicine holding plate (4) is slidably mounted on the finger plate (1), and a pressing plate (5) is slidably mounted on the medicine holding plate (4); a medicine holding groove (404) is provided on the medicine holding plate (4); a medicine table (102) connected to the dropper (101) is fixedly mounted on the finger plate (1); It is characterized in that The fingerboard (1) is provided with a plurality of sets of ear-expanding mechanisms, the ear-expanding mechanisms are connected to ear-expanding plates (2) slidably arranged on the fingerboard (1), and the plurality of ear-expanding plates (2) surround the dripping tube (101); the ear-expanding mechanisms can drive the ear-expanding plates (2) away from the dripping tube (101) when the medicine-blocking plate (4) approaches the fingerboard (1), so as to expand the ear canal; The end of the dropper (101) is provided with a needle that penetrates the eardrum; the needle is disposable; An injection device is arranged in the medicine table (102), the bottom end of the injection device is engaged with and communicated with the dropper (101), the injection device passes through the medicine holding slot (404), and the telescopic end thereof is connected to the pressing plate (5), the movement of the pressing plate (5) can drive the telescopic end of the injection device to move downward or upward, and then the medicine in the injection device is injected into the tympanic cavity through the dropper (101) and the needle; The finger plate (1) is provided with a medicine feeding mechanism, and the medicine feeding mechanism can squeeze the injection device when the pressing plate (5) is close to the medicine holding plate (4), so that the medicine liquid passes through the dropper (101) and the needle; The pressing plate (5) is provided with a regulating mechanism, which can increase or decrease the amount of pressure applied by the medicine applying mechanism, so as to increase or decrease the amount of medicine liquid passing through the dropper (101).

2. The tympanic injection device according to claim 1, characterized in that: It also includes a visual component; the visual component includes a micro camera and a display; the display is fixed on the fingerboard (1), the display is connected to the micro camera, the micro camera is arranged on one side of the dropper (101) and is used to display the position of the disposable dropper head; and an illuminating lamp is arranged at the end of the ear expansion plate (2) for illuminating the situation inside the ear.

3. A tympanic injection device according to claim 1, characterized in that: A plurality of sets of ear-expanding telescopic sleeves (103) are fixedly mounted on a surface of the finger plate (1) facing away from the drip tube (101), an ear-expanding telescopic column (403) fixedly connected to the medicine clamping plate (4) is slidably engaged in the ear-expanding telescopic sleeve (103), and a first spring (3) fixedly connected to the ear-expanding telescopic column (403) is fixedly mounted in the ear-expanding telescopic sleeve (103); A plurality of groups of drug-applying telescopic sleeves (402) are fixedly mounted on one side of the drug-applying plate (4) away from the ear-expanding telescopic column (403), a drug-applying telescopic column (503) fixedly connected to the pressing plate (5) is slidably engaged in the drug-applying telescopic sleeve (402), and a drug-applying spring (7) fixedly connected to the drug-applying telescopic column (503) is fixedly mounted in the drug-applying telescopic sleeve (402); A limit block is provided on the telescopic sleeve (402), and the limit block is used to limit the movement of the telescopic sleeve (402), thereby limiting the movement stroke of the pressing plate (5) to limit the injection volume of the injection device.

4. A tympanic injection device according to claim 3, characterized in that: The ear expansion mechanism comprises a plurality of ear expansion grooves (104) provided on the finger plate (1), wherein an ear expansion slider (201) fixedly connected to the ear expansion plate (2) is slidably engaged in the ear expansion groove (104); a guide rod (202) slidably connected to the finger plate (1) is fixedly installed on the ear expansion slider (201), and an ear expansion spring (203) having two ends respectively fixedly connected to the finger plate (1) and the ear expansion slider (201) is wrapped around the guide rod (202); a protruding column (401) cooperating with the ear expansion slider (201) is fixedly installed on a surface of the medicine plate (4) close to the finger plate (1).

5. A tympanic injection device according to claim 4, characterized in that: The medicine applying mechanism comprises a medicine applying slider (6) fixedly connected to the regulating mechanism, and the middle part of the medicine applying slider (6) has an inclined surface that contracts toward the pressing plate (5).

6. A tympanic injection device according to claim 5, characterized in that: The regulating mechanism comprises a connecting block (501) fixedly mounted on the pressing plate (5), the connecting block (501) being provided with a medicine applying groove (502), a protruding block (601) fixedly connected to the medicine applying slider (6) being slidably engaged in the medicine applying groove (502), a screw column (602) and a sliding rod (603) fixedly connected to the medicine applying slider (6) being slidably arranged on the pressing plate (5), and an internally threaded sleeve (501) threadedly connected to the screw column (602) being rotatably mounted on the pressing plate (5).

7. A tympanic injection device according to claim 6, characterized in that: The finger plate (1) is provided with a first groove (105), and the pressing plate (5) is provided with a second groove (505).

8. A tympanic injection device according to claim 1, characterized in that: One end of the ear expansion plate (2) away from the finger plate (1) is bent toward the drip tube (101).

9. A method for applying medicine to a tympanic injection device according to claims 1-8, comprising the following steps: The first step is to place the injection device on the medicine table (102), align the medicine outlet with the dropper (101), and place the bottle in the medicine card slot (404). The amount of liquid medicine when the medicine feeding mechanism is in action is set by the regulating mechanism; Step 2: Turn on the lighting, insert the dropper (101) surrounded by the ear expansion plate (2) into the patient's inner ear canal, and penetrate the eardrum with the needle; Step 3: Press the medicine-holding plate (4) to bring the medicine-holding plate (4) close to the finger plate (1), so as to drive the ear-expanding mechanism to drive the ear-expanding plate (2) away from the dropper (101), thereby expanding the ear canal. At this time, the pressing plate (5) is extended and does not squeeze the injection device; Step 4: Press the pressing plate (5) to bring the pressing plate (5) close to the medicine holding plate (4) to drive the medicine feeding mechanism to press the injection device so that the medicine liquid is injected into the patient's tympanic cavity through the dropper (101) and the needle; Step 5: Pull out the medication device, disinfect and clean it, and discard the needle.

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