Local administration device for oral medicine treatment

Abstract

The invention relates to a local administration device for oral medicine treatment, belongs to the technical field of medical instruments, and aims to solve the problems that individual teeth are used as supporting points, the opening degree of the whole oral cavity of a patient is supported, the area of a tongue depressor cannot be adjusted when the tongue depressor enters the oral cavity, and the tongue cannot be well fixed in the prior art. According to the local administration device for oral medicine treatment, the oral cavity fixator, the tongue pressing mechanism and the quantitative administration device are arranged, the whole upper and lower teeth of a patient serve as supporting points, meanwhile, the tongue pressing area of the tongue depressor can be adjusted in the oral cavity, the tongue depressor can better fix the tongue, quantitative administration operation on the patient is met, and the operation efficiency is improved. And the conditions of poor treatment effect caused by too little administration and waste caused by too much administration are avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a local drug delivery device for oral medicine treatment. Background Art

[0002] Stomatology is a medical discipline. Major dental diseases include oral and maxillofacial dermoids, submandibular space infection, maxillofacial lymphangioma, odontoid malformations, maxillary sinus malignancies, mandibular ameloblastoma, chronic ethmoid sinusitis, mandibular retrognathia, tetracycline-induced teeth, and leukoplakia of the tongue. Technology has made many periodontal diseases completely curable. Advances in tissue bioengineering technologies, such as guided tissue regeneration, genetic technology, and implant-based dentures, offer exciting hope for the regeneration of diseased teeth. However, the treatment of periodontal disease must be a sequential approach. A detailed and effective treatment plan, meticulous and sophisticated treatment by the physician, and active patient cooperation are key to successful treatment.

[0003] When performing oral treatment or oral surgery on patients in the oral department, it is sometimes necessary to continuously administer medicine to the oral cavity to accelerate the healing of the affected area. After searching, the Chinese patent publication number is CN210170662U, which discloses a oral medicine dispensing device, including a grip rod, the upper end of the grip rod is connected to a cavity tube, and a side of the cavity tube is provided with an injection port, the upper end of the cavity tube is connected to a spherical coating head, and a plane is provided on one side of the spherical coating head, and a plurality of discharge holes are provided on the plane of the spherical coating head, a piston is tightly plugged in the cavity tube, and the right side of the piston is fixedly connected to a horizontal rack, and the rack is slidably engaged in the grip rod, the rack is upwardly meshed with a first gear, and the first gear is upwardly meshed with a second gear with the top exposed from the grip rod, the first gear and the second gear are both rotatably connected to the inner wall of the grip rod through a rotating shaft, and the size of the second gear is larger than the first gear. Since the oral medication device in the above patent slides the exposed gear to continuously push the meshing rack forward, thereby squeezing the medicine out of the spherical applicator head, some patients, such as children or mentally disabled patients, cannot be medicated in their mouths if they do not cooperate.

[0004] Therefore, based on the above problems, an oral drug delivery device for otolaryngology with announcement number CN213789535U was further designed, comprising two main bodies, a first threaded rod being provided in the middle of the main body, a first connecting rod being provided at one end of the first threaded rod, two second connecting rods being provided at one end of the first connecting rod, a roller being provided between the two second connecting rods, the roller being rotatably connected to the main body, a fixed body being provided at one end of the second connecting rod, a telescopic rod being provided between the two main bodies, a connecting column being provided between the two telescopic rods, a moving mechanism being provided on one side of the connecting column, a tongue depressor being provided on one side of the moving mechanism, a rotating mechanism being provided at the top of the connecting column, a fixed sleeve being provided at the inside of the fixed sleeve, and a medicine tube being provided at the inside of the medicine tube.

[0005] Although the above oral drug delivery device can achieve drug delivery operation inside the patient's oral cavity, it still has the following problems during use: (1) It relies on only four separate fixing bodies to open and fix the patient's upper and lower teeth from two supporting points throughout the entire mouth. This method will cause individual teeth that serve as supporting points to feel extremely uncomfortable during long-term treatment; (2) The size of the tongue depressor cannot be adjusted to increase when entering the oral cavity, resulting in the larger tongue depressor being unable to enter the oral cavity and the smaller tongue depressor being unable to better fix the tongue.

[0006] Therefore, there is an urgent need to design a local drug delivery device for oral medicine treatment to solve the above problems. Summary of the Invention

[0007] In response to the problems in the above-mentioned prior art that individual teeth are used as support points to support the entire oral opening of the patient, and the area of ​​the tongue depressor cannot be adjusted when entering the oral cavity, resulting in an inability to achieve a good fixation effect on the tongue, the present invention provides a local drug delivery device for oral internal medicine treatment, which uses the patient's entire upper and lower teeth as support points to avoid individual teeth as support points, which may cause discomfort under long-term support. At the same time, the tongue depressing area of ​​the tongue depressor can be adjusted inside the oral cavity, so that the tongue depressor can better fix the tongue, avoid the limited fixation range, and the incompletely fixed tongue affecting the subsequent drug delivery operation, meet the quantitative drug delivery operation for the patient, and avoid the situation where too little drug delivery causes poor treatment effect and too much drug delivery causes waste.

[0008] The core technical idea of ​​the present invention is: the present invention is provided with an oral fixer, a tongue depressor mechanism and a quantitative drug delivery device, wherein the oral fixer is a U-shaped structure used to open the oral cavity and fix it to the teeth, and then the tongue depressor mechanism is arranged in the oral fixer, and is connected to the oral fixer and cooperated to fix the patient's tongue. The quantitative drug delivery device is used to quantitatively deliver the drug to the affected part of the oral cavity after the oral cavity is opened and the tongue is fixed.

[0009] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A local drug delivery device for oral medical treatment, comprising: Oral retainers, which hold the mouth open and secure it to the teeth; A tongue depressing mechanism is provided in the oral retainer and cooperates with the oral retainer to fix the tongue; The quantitative drug delivery device is inserted from the outside of the oral fixture and connected to the tongue depressor mechanism for delivering the drug to the affected area.

[0010] Preferably, the oral fixture comprises: The upper fixing sleeve is connected to the lower fixing sleeve via a telescopic rod; The lower retainer is a U-shaped structure that works with the upper retainer to separate the upper and lower teeth and open the mouth. The tooth fixing component is embedded in the outer side of the lower fixing sleeve and is used for further fixing the lower fixing sleeve to the lower teeth.

[0011] Preferably, the lower fixing sleeve comprises: U-shaped plywood, double-layer structure; A plurality of connecting columns are arranged between the two U-shaped clamping plates and close to the upper ends of the U-shaped clamping plates.

[0012] Preferably, the dental fixture assembly comprises: The synchronous limit column is rotatably arranged on the outside of the lower fixed sleeve and is used to drive the synchronous belt to rotate; The synchronous belt is mounted on the synchronous limit column and the two driven rods to drive the two driven rods to rotate; Two driven rods are arranged on both sides of the synchronous limit column; The tooth limiting plate is arranged between the two U-shaped splints and connected to the driven rod, and is used to fix the lower fixing sleeve to the lower teeth.

[0013] Preferably, the tongue depressing mechanism comprises: a tongue depressor hinged on the inner wall of the lower fixed sleeve; The tongue depressor area enlarging component is arranged around and through the lower fixing sleeve and is arranged on the lower side of the tongue depressor; The tongue depressor angle adjustment component is arranged on the upper side of the tongue depressor and is used in conjunction with the upper palate of the oral cavity to adjust the inclination angle of the tongue depressor; The limiting component is arranged on the lower side of the tongue depressor and is connected to the inner wall of the lower fixing sleeve, and is used for limiting the rotation angle of the tongue depressor.

[0014] Preferably, the tongue depressor area enlargement component comprises: The pull rope is wound around the tooth fixing assembly and passes through the lower fixing sleeve, and at the same time moves through the limit block to connect with the push plate; A push plate is slidably arranged at the bottom end of the tongue depressor and connected to the tongue depressor through an elastic member; The two arc-shaped plates are movably connected to the two sides of the push plate through a connecting rod.

[0015] Preferably, the tongue depressor angle adjustment assembly includes: an electric telescopic rod, disposed near the free end of the tongue depressor; The arc-shaped top plate is arranged at the telescopic end of the electric telescopic rod and is used in conjunction with the upper palate of the oral cavity to adjust the angle of the tongue depressor.

[0016] Preferably, the limiting component includes: A limiting plate is arranged on the lower side of the tongue depressor and connected to the lower fixing sleeve; The second elastic member is sleeved on the limiting plate and connected to the tongue depressor.

[0017] Preferably, the dosing device comprises: A syringe is arranged outside the lower fixed sleeve and is connected to the external liquid medicine for repeated administration of the medicine into the oral cavity; A drug delivery tube, connected to the end of the syringe, used to deliver the drug solution directly into the oral cavity; A rotating and telescopic component is provided at the free end of the tongue depressor and is connected to the medicine delivery tube, and is used to adjust the direction and length of the medicine delivery tube in the oral cavity; The drug administration limiter assembly is connected to the syringe and is used to control the amount of drug administered by the syringe in a single dose.

[0018] Preferably, the syringe comprises: An injection tube with a movable ball disposed therein, the end of the injection tube being connected to the drug suction tube for quantitatively delivering the drug solution to the drug delivery tube; The medicine suction tube is connected to and used in conjunction with the drug administration limit component to control the amount of external medicine liquid that the medicine suction tube absorbs in a single time.

[0019] The beneficial effects of the present invention are as follows: the present invention discloses a local drug delivery device for oral medicine treatment. Compared with the prior art, the present invention has the following improvements: (1) The present invention sets the oral retainer as a double-layer U-shaped structure, and sets connecting columns between the fixing sleeves of the U-shaped structure. At the same time, the connection point of the connecting column is set at the upper end position, and the upper and lower teeth of the patient are used as fulcrums to avoid the discomfort caused by individual teeth as support points. At the same time, the lower teeth are allowed to enter the oral fixation more completely, which is convenient for using the tooth fixing assembly to further fix the lower teeth, and avoid the situation where the patient's mouth becomes tired and involuntarily enlarged due to long-term treatment, causing the oral retainer to fall off.

[0020] (2) The present invention is provided with a tongue depressor mechanism that can change the area in the oral cavity, which overcomes the problem that a smaller tongue depressor is easy to put into the oral cavity but has a poor effect in fixing the tongue, and a larger tongue depressor has a good fixing effect but is not easy to put into the oral cavity. The present invention makes it easy to put into the patient's oral cavity and ensures a good effect of fixing the tongue, which is convenient for the operator's later treatment and drug administration operations.

[0021] (3) The present invention provides a quantitative drug delivery device, which achieves the effect of repeatedly extracting a quantitative external liquid medicine through the cooperation of a syringe and a limit assembly, and then injecting the quantitatively extracted liquid medicine into the oral affected area, thereby avoiding the problem that the amount of medicine administered in a single dose cannot be controlled, resulting in a large amount of medicine being wasted and a small amount of medicine having a poor therapeutic effect; Furthermore, the quantitative drug delivery device can adjust the angle and height of the drug delivery tube in the oral cavity by rotating the telescopic component, so that the end of the drug delivery tube can accurately deliver the drug to the affected part of the oral cavity to achieve the best treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the local drug delivery device for oral internal medicine treatment according to the present invention, viewed from above; Figure 2 This is a schematic diagram of the structure of the local drug delivery device for oral internal medicine treatment according to the present invention as viewed from the side; Figure 3 This is a schematic diagram of the structure of the lower fixing sleeve of the present invention as viewed from the side; Figure 4 This is a schematic diagram of the structure of the lower fixing sleeve of the present invention from a top view. Figure 1 ; Figure 5 This is a schematic diagram of the structure of the lower fixing sleeve of the present invention from a top view. Figure 2 ; Figure 6 This is a schematic structural diagram of a tooth fixing assembly according to the present invention; Figure 7 This is a schematic diagram of the structure of the lower fixing sleeve of the present invention from a top view. Figure 3 ; Figure 8 This is an enlarged view of the tooth fixing assembly of the present invention; Figure 9 A cross-sectional view of the local drug delivery device for oral medicine treatment according to the present invention; Figure 10 This is an enlarged view of part A of the present invention; Figure 11 This is a bottom view of the tongue depressing mechanism of the present invention; Figure 12 This is a top view of the tongue depressing mechanism of the present invention; Figure 13 This is a schematic diagram of the push plate structure of the present invention; Figure 14 This is a schematic diagram of the structure of the lower fixing sleeve of the present invention from a top view. Figure 4 ; Figure 15 This is a schematic diagram of the structure of the limit assembly of the present invention; Figure 16 This is a schematic diagram of the structure of the fixed sleeve in the direction of top view of the present invention Figure 5 ; Figure 17 This is an enlarged view of the structure of the quantitative drug delivery device of the present invention; Figure 18 is a cross-sectional view of the quantitative drug delivery device of the present invention; Figure 19 This is an enlarged view of part B of the present invention; Wherein: 1. Oral retainer; 101. Lower fixing sleeve; 101-1. U-shaped splint; 101-2. Connecting column; 102. Tooth fixing assembly; 102-1. Synchronous limit column; 102-1A. Limit nut; 102-1B. Synchronous column; 102-1C. Drive plate; 102-1D. Drive block; 102-2. Synchronous belt; 102-3. Driven rod; 102-4. Tooth limit plate; 103. Upper fixing sleeve; 103-1. Telescopic rod; 2. Tongue depressor mechanism; 201. Tongue depressor; 202. Tongue depressor area enlargement assembly; 202-1. Pull rope; 202-1A. Limit block; 202-2. Push plate; 202-2A. Slide; 202-3A. Connecting rod; 202-3. Arc plate; 202-4. Elastic part 1; 202-5. Fixed plate; 203. Tongue depressor angle adjustment assembly; 203-1. Electric telescopic rod; 203-2. Arc top plate; 204. Limit assembly; 204-1. Limit plate; 204-2. Elastic part 2; 3. Dosing device; 301. Syringe; 301-1. Injection tube; 301-1A. Activity ball; 301-2. Suction tube; 302. Drug delivery tube; 303. Rotating telescopic assembly; 303-1. Rotating motor; 303-2. Electric telescopic rod; 304. Drug delivery limit assembly; 304-1. Drug limit seat; 304-2. Limit hole; 304-3. Limit buckle; 304-4. Connecting plate. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0025] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Furthermore, when a layer is referred to as being "under" another layer, it can be directly under or one or more intervening elements may also be present. It will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or one or more intervening elements may also be present.

[0026] In the case of using “including,” “having,” and “comprising” described herein, another component may be added unless a clear limiting term such as “only,” “consisting of,” etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as having one number.

[0027] It should be understood that although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of this application.

[0028] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately," "approximately," or "substantially" can mean within one or more standard deviations, and is not limited here.

[0029] Furthermore, in the specification, the phrase “planar distribution diagram” refers to a drawing when the target portion is viewed from above, and the phrase “cross-sectional diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0030] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale. Example 1

[0031] The present invention provides a local drug delivery device for oral medicine treatment, which can open the patient's mouth to a certain angle and fix the tongue to the lower teeth, making it easier for doctors to perform treatment and drug delivery operations inside the patient's mouth.

[0032] Refer to the attached Figure 1-4 and attached Figure 8 As shown, the local drug delivery device for oral internal medicine treatment of this embodiment includes an oral retainer 1 and a tongue depressor 2. The oral retainer 1 is used to open the mouth and fix it to the teeth to prevent the mouth from becoming tired and involuntarily widening due to prolonged biting of the oral retainer 1, which may cause the oral retainer 1 to separate from the teeth and fall off. The tongue depressor 2 is disposed in the oral retainer 1 and cooperates with the oral retainer 1 to press the patient's tongue under the teeth, thereby fixing the tongue. In the embodiments of this application, refer to the attached Figure 1-2As shown, the oral retainer 1 includes an upper fixing sleeve 103, a lower fixing sleeve 101 and a tooth fixing assembly 102, wherein the upper fixing sleeve 103 is connected to the lower fixing sleeve 101 by a telescopic rod 103-1, and the telescopic rod 103-1 can be an electric telescopic rod. The upper fixing sleeve 103 and the lower fixing sleeve 101 are both U-shaped structures, which fit the shape of the oral cavity and have a better supporting effect. The upper fixing sleeve 103 and the lower fixing sleeve 101 are used to separate the upper and lower teeth to realize oral dilation; the tooth fixing assembly 102 is movably embedded in the outer side of the lower fixing sleeve 101. On the basis of the teeth occluding in the oral retainer 1, the lower fixing sleeve 101 is further fixed to the lower teeth, so as to avoid the situation where the mouth becomes tired and involuntarily dilated due to long-term occlusion, and the teeth and the oral retainer fall off; In the embodiments of this application, refer to the attached Figure 3 As shown, the upper fixing sleeve 103 and the lower fixing sleeve 101 have the same structure, both including a U-shaped clamping plate 101-1 and a plurality of connecting columns 101-2, wherein the U-shaped clamping plate 101-1 is a double-layer structure and is sleeved, and the plurality of connecting columns 101-2 are arranged between the two U-shaped clamping plates 101-1; Preferably, the U-shaped splint 101-1 and the plurality of connecting posts 101-2 are made of rubber or silicone, which is convenient for high-temperature sterilization. Rubber or silicone has good elasticity and toughness, so that the U-shaped splint 101-1 and the connecting posts 101-2 can be placed in the patient's mouth and will not damage the teeth and gums when in contact with the teeth. In the embodiment of the present application, the tooth fixing assembly 102 is used to further fix the lower teeth after the patient bites the lower fixing sleeve 101, so that the lower fixing sleeve 101 and the patient's teeth are fixedly connected together, rather than just biting together, to achieve a better connection and fixing effect between the lower fixing sleeve 101 and the teeth; Refer to the attached Figure 4 As shown, the tooth fixing assembly 102 includes a synchronous limiting column 102-1, a synchronous belt 102-2, two driven rods 102-3 and a tooth limiting plate 102-4, wherein the synchronous limiting column 102-1 is rotatably arranged on the outside of the lower fixed sleeve 101, and is used to drive the synchronous belt 102-2 to rotate, and the synchronous belt 102-2 is sleeved on the synchronous limiting column 102-1 and the two driven rods 102-3 to drive the two driven rods 102-3 to rotate, and the two driven rods 102-3 are arranged on both sides of the synchronous limiting column 102-1; the tooth limiting plate 102-4 is arranged between the two U-shaped clamping plates 101-1 and is connected to the driven rod 102-3, and is used to fix the lower fixed sleeve 101 to the lower tooth; illustratively, the synchronous belt 102-2 is a synchronous toothed belt; Manually rotate the synchronous limiting post 102-1, which drives the synchronous belt 102-2 to rotate. The synchronous belt 102-2 drives the two driven rods 102-3 to rotate simultaneously. When the two driven rods 102-3 rotate, they move relative to the outer U-shaped clamping plate 101-1, so that the tooth limiting plate 102-4 is close to the patient's lower teeth, squeezing and fixing the patient's lower teeth, thereby fixing the lower fixing sleeve 101 to the patient's teeth; In the embodiments of this application, refer to the attached Figure 3 As shown, in order to achieve the limitation of the synchronous limit column 102-1 on the synchronous belt 102-2, thereby limiting the two driven rods 102-3, the synchronous limit column 102-1 is provided with two parts, namely a synchronous column 102-1B and a limit nut 102-1A. The limit nut 102-1A is threadedly connected to the synchronous column 102-1B. When the synchronous belt 102-2 needs to be limited, the limit nut 102-1A is rotated to make it close to and squeeze the synchronous belt 102-2, so that it limits the synchronous belt 102-2, thereby limiting the position of the driven rod 102-3 and ensuring its stability. In the embodiments of this application, refer to the attached Figure 8 As shown, in order to realize the movement of the synchronous limit column 102-1 relative to the outer U-shaped splint 101-1, two driving plates 102-1C are symmetrically arranged on both sides of the synchronous limit column 102-1, and a driving block 102-1D is arranged on the driving plate 102-1C, and the driving blocks 102-1D of the two driving plates 102-1C are staggered. The two driving blocks 102-1D are used in conjunction with the threads on the synchronous limit column 102-1, so that when the synchronous limit column 102-1 rotates, it moves relative to the outer U-shaped splint 101-1 at the same time, thereby driving the tooth limit plate 102-4 to approach and squeeze the lower teeth, thereby realizing the fixation of the lower fixed sleeve 101 and the lower teeth.

[0033] The use process of the local drug delivery device for oral internal medicine treatment in this preferred embodiment includes: when it is necessary to treat the patient's oral cavity, the lower fixing sleeve 101 is first placed inside the patient's oral cavity, so that the lower teeth and the upper and lower teeth are respectively engaged on the upper fixing sleeve 103 and the connecting column 101-2 of the lower fixing sleeve 101, at this time, the synchronous limiting column 102-1 is manually rotated, and the synchronous limiting column 102-1 drives the synchronous belt 102-2 to rotate, and the synchronous belt 102-2 drives the two driven rods 102-3 to rotate at the same time. When the two driven rods 102-3 rotate, they will move relative to the outer U-shaped clamping plate 101-1, so that the tooth limiting plate 102-4 is close to the patient's lower teeth, and the patient's lower teeth are squeezed and fixed, thereby achieving the fixation of the lower fixing sleeve 101 and the patient's teeth, and at the same time the tongue depressing mechanism 2 fixes the patient's tongue; After the fixation is completed, the tooth limiting plate 102-4 needs to be limited, and the tooth limiting plate 102-4 is limited by the limiting synchronous belt 102-2. Specifically, the limiting nut 102-1A is rotated to make it close to and squeeze the synchronous belt 102-2, so that it limits the synchronous belt 102-2, thereby limiting the driven rod 102-3 and the tooth limiting plate 102-4. Finally, the doctor can use the instrument to open the mouth for treatment and medication. Example 2

[0034] The tongue depressor mechanism 2 of the local drug delivery device for oral medicine treatment in Example 1 has the following problems during use: a larger tongue depressor is difficult to enter the patient's oral cavity, but has a better tongue fixing effect; a smaller tongue depressor is easy to enter the patient's oral cavity, but has a poor tongue fixing effect. Based on the above problem, this Example 2 further designs the tongue depressor mechanism 2, so that the tongue depressor mechanism 2 can be easily placed in the oral cavity while ensuring a better tongue fixing effect. Refer to the attached Figure 1 and attached Figure 5-15 As shown, the tongue depressor mechanism 2 of this embodiment includes a tongue depressor 201, a tongue depressor area enlarging assembly 202, a tongue depressor angle adjusting assembly 203, and a limiting assembly 204. The tongue depressor 201 is hinged to the inner wall of the lower fixing sleeve 101, so that it can rotate relative to the inner wall of the lower fixing sleeve 101, thereby moving downward to fix the tongue. The tongue depressor area enlargement component 202 is arranged around and through the lower fixing sleeve 101 and is arranged on the lower side of the tongue depressor 201. The tongue depressor area enlargement component 202 is driven by the lower fixing sleeve 101, thereby increasing the area of ​​the tongue depressor 201 and making it more effective in fixing the tongue. The tongue depressor angle adjustment component 203 is arranged on the upper side of the tongue depressor 201 and is used in conjunction with the upper palate of the oral cavity to adjust the inclination angle of the tongue depressor 201 so that the free end of the tongue depressor 201 moves downward and approaches the tongue position to limit the tongue; The limiting assembly 204 is provided on the lower side of the tongue depressor 201 and is connected to the inner wall of the lower fixing sleeve 101. It is used to limit the rotation angle of the tongue depressor 201. When the tongue depressor 201 rotates relative to the hinge, the limiting assembly 204 acts as a buffer to the rotation process and limits the rotation angle range, thereby preventing discomfort to the tongue and palate caused by an excessive rotation range. In the embodiments of this application, refer to the attached Figure 7 and attached Figure 10As shown, the tongue depressor area enlargement assembly 202 includes a pull rope 202-1, a push plate 202-2, and two arc-shaped plates 202-3. One end of the pull rope 202-1 is wound around the tooth fixing assembly 102, and the other end passes through the lower fixing sleeve 101 and the limit block 202-1A in sequence to connect with the push plate 202-2. When the tooth fixing assembly 102 is rotated, the driven rod 102-3 is driven to rotate, and the driven rod 102-3 rotates, slowly loosening the pull rope 202-1 (in the initial state, the pull rope 202-1 is in a tightened state), so that the other end of the pull rope 202-1 slowly loosens the push plate 202-2; Refer to the attached Figure 11-12 As shown, the push plate 202-2 is slidably disposed at the bottom end of the tongue depressor 201 and is connected to the tongue depressor 201 via an elastic member 202-4. Specifically, one end of the elastic member 202-4 is connected to the bottom of the push plate 202-2, and the other end is connected to the fixed plate 202-5, which is fixedly disposed at the bottom end of the tongue depressor 201. Exemplarily, the elastic member 202-4 is a spring or a spring sheet. Refer to the attached Figure 13 As shown, the end of the push plate 202-2 is a triangular structure, and a slide groove 202-2A is opened on both sides. The two curved plates 202-3 are slidably connected to the end of the push plate 202-2 through the connecting rod 202-3A and the slide groove 202-2A. The triangular structure design of the end of the push plate 202-2 can achieve the effect of storing the two curved plates 202-3 and pushing out the two curved plates 202-3 to increase the area of ​​the tongue depressor 201; In the initial state, the pull rope 202-1 pulls the push plate 202-2 tight, and the elastic member 1 202-4 is in a compressed state. When the push plate 202-2 moves under the action of the pull rope 202-1, the elastic member 1 202-4 slowly releases its elastic force, and the elastic member 1 202-4 pushes the push plate 202-2 to move. Refer to the attached Figure 12 As shown, the two arc-shaped plates 202-3 are connected to the push plate 202-2 on both sides by a connecting rod 202-3A for sliding and rotation. Specifically, the end of the connecting rod 202-3A is connected to the T-shaped slider for rotation. The T-shaped slider is set in the sliding groove 202-2A, so that the connecting rod 202-3A is connected to the push plate 202-2 for sliding and rotation relative to the push plate 202-2. In the initial state, the two arc-shaped plates 202-3 are retracted at the bottom of the tongue depressor 201. When the push plate 202-2 moves, the width of the two sides thereof becomes larger and larger, which pushes the connecting rod 202-3A to slide in the slide groove 202-2A and rotate relative to the push plate 202-2, thereby pushing the two arc-shaped plates 202-3 to extend to the two sides of the tongue depressor 201, thereby increasing the tongue depressing area of ​​the tongue depressor 201. In the embodiments of this application, refer to the attached Figure 14As shown, the tongue depressor angle adjustment assembly 203 includes an electric telescopic rod 203-1 and an arc-shaped top plate 203-2. The electric telescopic rod 203-1 is disposed near the free end of the tongue depressor 201, and the arc-shaped top plate 203-2 is disposed at the telescopic end of the electric telescopic rod 203-1 and is used in conjunction with the upper jaw to adjust the angle of the tongue depressor 201. Exemplarily, the arc-shaped top plate 203-2 is made of silicone or rubber to protect oral tissue from damage and conforms to the shape of the upper jaw. When in use, the electric telescopic rod 203-1 is turned on, and its telescopic end extends upward, driving the arc-shaped top plate 203-2 to move upward synchronously. The arc-shaped top plate 203-2 is pressed against the upper palate by its own weight. At the same time, the upper palate exerts a reaction force on the arc-shaped top plate 203-2, causing the end of the tongue depressor 201 to move downward. At this time, the tongue depressor 201 rotates downward relative to the hinge between it and the lower fixed sleeve 101. In the embodiments of this application, refer to the attached Figure 15 As shown, the limiting assembly 204 includes a limiting plate 204-1 and a second elastic member 204-2, wherein the limiting plate 204-1 is disposed on the lower side of the tongue depressor 201 and connected to the lower fixing sleeve 101, and the second elastic member 204-2 is sleeved on the limiting plate 204-1 and connected to the tongue depressor 201. Exemplarily, the second elastic member 204-2 is a spring or a spring sheet. When the tongue depressor 201 moves downward, the bottom of the tongue depressor 201 compresses the elastic member 204-2. When the elastic member 204-2 is compressed to a maximum extent, the position of the limit plate 204-1 remains unchanged, so that the tongue depressor 201 cannot continue to rotate, thereby controlling the rotation range of the tongue depressor 201 and preventing the tongue depressor 201 from rotating too much and causing discomfort to the oral cavity.

[0035] The use process of the local drug delivery device for oral internal medicine treatment in this preferred embodiment is as follows: when the oral fixator 1 is used to open and fix the patient's oral cavity, that is, the two driven rods 102-3 rotate, the two pull ropes 202-1 (in the initial state, the pull ropes 202-1 are in a tightened state) are slowly loosened by the two driven rods 102-3, and the other ends of the pull ropes 202-1 synchronously and slowly loosen the push plate 202-2 (in the initial state, the push plate 202-2 is tightened, and the elastic member 1 202-4 is in a compressed state), the elastic member 1 202-4 slowly releases the elastic force, and the push plate 202-2 slowly moves along the tongue depressor 201 toward its free end. Under the action of the push plate 202-2, the two curved plates 202-3 (in the initial state, the two curved plates 202-3 are retracted at the bottom of the tongue depressor 201) extend to both sides of the tongue depressor 201, thereby increasing the tongue depressing area of ​​the tongue depressor 201; Next, the electric telescopic rod 203-1 is turned on, and its telescopic end extends upward, driving the arc-shaped top plate 203-2 to move upward synchronously. The arc-shaped top plate 203-2 is pressed against the upper palate by its own weight. At the same time, the upper palate exerts a reaction force on the arc-shaped top plate 203-2, causing the end of the tongue depressor 201 to move downward. At this time, the tongue depressor 201 rotates downward relative to the hinge between it and the lower fixed sleeve 101, thereby limiting the tongue position. At the same time, when the tongue depressor 201 moves downward, the bottom of the tongue depressor 201 compresses the elastic member 204-2. When the elastic member 204-2 is compressed to a maximum extent, the position of the limit plate 204-1 remains unchanged, so that the tongue depressor 201 cannot continue to rotate, thereby controlling the rotation range of the tongue depressor 201 and preventing the tongue depressor 201 from rotating too much and causing discomfort to the oral cavity. Example 3

[0036] Based on the local drug delivery devices for oral medicine treatment of Examples 1 and 2, when medication needs to be administered to the patient's oral area during oral treatment, traditional drug delivery devices or methods cannot quantitatively administer the drug, resulting in insufficient or excessive administration. Insufficient dosage leads to insufficient dosage and unsatisfactory treatment effect, while excessive dosage leads to waste. Therefore, in view of the above problems, this Example 3 further designs a quantitative drug delivery device 3 to achieve single quantitative administration and multiple drug delivery operations; In the embodiments of this application, refer to the attached Figure 1 and attached Figure 16-19 As shown, the quantitative drug delivery device 3 includes a syringe 301, a drug delivery tube 302, a rotating and telescopic component 303, and a drug delivery limit component 304. The syringe 301 is arranged outside the lower fixed sleeve 101 and is connected to the external drug solution for repeated administration of the drug to the affected part of the oral cavity. The drug delivery tube 302 is connected to the end of the syringe 301 and is used to deliver the drug solution directly into the oral cavity for administering the drug to the affected area; The rotating and telescopic assembly 303 is provided at the free end of the tongue depressor 201 and is connected to the medicine delivery tube 302. The rotating and telescopic assembly 303 is used to adjust the direction and length of the medicine delivery tube 302 in the oral cavity so that the medicine outlet of the medicine delivery tube 302 is accurately aligned with the affected part of the patient's oral cavity. The drug administration limiting component 304 is connected to the syringe 301 and is used to control the amount of drug administered by the syringe 301 in a single dose; During use, the end of the drug delivery tube is rotated toward the affected area by adjusting the rotating telescopic assembly 303, and then the length of the syringe 301 drawn out in a single time is fixed by the drug delivery limit assembly 304, so that the amount of external drug solution aspirated by the syringe 301 in a single time is fixed, thereby fixing the amount of drug injected into the affected area in a single time. Then, the syringe 301 is pressed to inject the entire amount of drug aspirated in a single time into the affected area of ​​the patient's mouth, thus completing the drug delivery operation. In the embodiments of this application, refer to the attached Figure 18As shown, the syringe 301 includes a syringe 301-1 and a drug suction tube 301-2 that are sleeved together. A movable ball 301-1A is disposed within the syringe 301-1. The end of the syringe 301-1 is connected to the drug delivery tube 302 for quantitatively delivering liquid medicine to the drug delivery tube 302. The diameter of the movable ball 301-1A is smaller than the inner diameter of the syringe 301-1. The drug suction tube 301-2 is used in conjunction with the drug delivery limiter assembly 304 and the injection tube 301-1 to absorb external drug liquid and control the amount of drug absorbed by the drug suction tube 301-2 in a single time; During use, the drug suction tube 301-2 is manually pulled, and the external drug liquid enters the drug suction tube 301-2. At the same time, the movable ball 301-1A is pulled to the tube opening connecting the injection tube 301-1 and the drug suction tube 301-2 and blocks the tube opening. At this time, the inner cavity of the drug suction tube 301-2 is filled with drug liquid. Then the drug suction tube 301-2 is pressed again. At this time, the movable ball 301-1A is pushed away to the tube opening of the injection tube 301-1, and the drug liquid enters the injection tube 301-1 from the drug suction tube 301-2, and then enters the drug delivery tube 302. In the embodiments of this application, refer to the attached Figure 19 As shown, the rotary telescopic assembly 303 includes a rotary motor 303-1 and an electric telescopic rod 303-2. The rotary motor 303-1 is fixedly mounted on the tongue depressor 201. The electric telescopic rod 303-2 is connected to the rotary motor 303-1. The end of the drug delivery tube 302 is fixed to the electric telescopic rod 303-2. When in use, the direction of the electric telescopic rod 303-2 can be adjusted by turning on the rotating motor 303-1 so that the end of the medicine delivery tube 302 is aligned with the affected part of the oral cavity. The distance between the end of the medicine delivery tube 302 and the affected part can be adjusted by turning on the electric telescopic rod 303-2 so that the end of the medicine delivery tube 302 is close to the affected part. In the embodiments of this application, refer to the attached Figure 17-18 As shown, the medication limiting assembly 304 includes a medication limiting seat 304-1, a limiting buckle 304-3 and a connecting plate 304-4, wherein the medication limiting seat 304-1 is fixedly arranged on the outer surface of the lower fixed sleeve 101 and is fixedly connected to the injection tube 301-1. A plurality of limiting holes 304-2 are also evenly spaced on the medication limiting seat 304-1. The limiting buckle 304-3 is a U-shaped structure and is made of a deformable and memory material and can be stuck in the limiting hole 304-2. The connecting plate 304-4 is slidably arranged on the medication limiting seat 304-1 and is fixedly connected to the drug suction tube 301-2. During use, the limiting buckle 304-3 is locked in different limiting holes 304-2 to position the pulling distance of the medicine suction tube 301-2 relative to the injection tube 301-1, thereby ensuring that the amount of medicine extracted at a single time is fixed.

[0037] The steps for using the local drug delivery device for oral medicine treatment of the present invention are as follows: S1. First, disinfect the oral retainer 1; S2. The lower fixed sleeve 101 is prevented inside the patient's mouth so that the lower teeth and the upper and lower bite on the upper and lower sides of the connecting column 101-2; S3. Manually rotate the synchronous limit post 102-1, which drives the synchronous belt 102-2 to rotate. The synchronous belt 102-2 drives the two driven rods 102-3 to rotate simultaneously. When the two driven rods 102-3 rotate, they move relative to the outer U-shaped clamping plate 101-1, so that the tooth limit plate 102-4 approaches the patient's lower teeth and squeezes and fixes the patient's lower teeth, thereby fixing the lower fixing sleeve 101 to the patient's teeth. At the same time, the tongue depressor mechanism 2 fixes the patient's tongue. S4. Rotate the limiting nut 102-1A so that it is close to and squeezes the timing belt 102-2, so that the timing belt 102-2 is limited, thereby limiting the driven rod 102-3 and the tooth limiting plate 102-4; S5. When the two driven rods 102-3 rotate, the two pull ropes 202-1 (in the initial state, the pull ropes 202-1 are in a tightened state) are slowly loosened by the two driven rods 102-3, and the other ends of the pull ropes 202-1 synchronously and slowly loosen the push plate 202-2 (in the initial state, the push plate 202-2 is tightened, and the elastic member 1 202-4 is in a compressed state). The elastic member 1 202-4 slowly releases its elastic force, and the push plate 202-2 slowly moves along the tongue depressor 201 toward its free end. Under the action of the push plate 202-2, the two curved plates 202-3 (in the initial state, the two curved plates 202-3 are retracted at the bottom of the tongue depressor 201) extend to both sides of the tongue depressor 201, thereby increasing the tongue depressing area of ​​the tongue depressor 201; S6. The electric telescopic rod 203-1 is turned on, and its telescopic end extends upward, driving the curved top plate 203-2 to move upward synchronously. The weight of the curved top plate 203-2 causes it to press against the roof of the mouth. Simultaneously, the roof of the mouth exerts a reaction force on the curved top plate 203-2, causing the end of the tongue depressor 201 to move downward. At this time, the tongue depressor 201 rotates downward relative to its hinge with the lower fixed sleeve 101, restraining the tongue. At the same time, when the tongue depressor 201 moves downward, the bottom of the tongue depressor 201 compresses the second elastic member 204-2. When the second elastic member 204-2 is compressed to a maximum extent, the position of the limit plate 204-1 remains unchanged, so that the tongue depressor 201 cannot continue to rotate, thereby controlling the rotation range of the tongue depressor 201 and preventing the tongue depressor 201 from rotating too much and causing discomfort to the oral cavity. S7. Turn on the rotating motor 303-1 to adjust the direction of the electric telescopic rod 303-2 so that the end of the drug delivery tube 302 corresponds to the oral affected area; S8. Turn on the electric telescopic rod 303-2 to adjust the distance between the end of the drug delivery tube 302 and the affected area, so that the end of the drug delivery tube 302 is close to the affected area; S9. According to the patient's condition, the limit buckle 304-3 is set in the limit hole 304-2, positioning the suction tube 301-2 relative to the injection tube 301-1 pulling distance; S10. Manually pull the drug suction tube 301-2, and the external medicine liquid enters the drug suction tube 301-2, and at the same time, the movable ball 301-1A is pulled to the tube mouth where the injection tube 301-1 and the drug suction tube 301-2 are connected and the tube mouth is blocked. At this time, the inner cavity of the drug suction tube 301-2 is filled with medicine liquid, and then press the drug suction tube 301-2 again. At this time, the movable ball 301-1A is pushed away to the tube mouth of the injection tube 301-1, and the medicine liquid enters the injection tube 301-1 from the drug suction tube 301-2, and then enters the drug delivery tube 302, and finally flows out from the end of the drug delivery tube 302 and is accurately injected into the patient's oral affected area.

[0038] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A local drug delivery device for oral medicine treatment, characterized in that: include: An oral retainer (1) for opening the oral cavity and securing it to the teeth; A tongue depressing mechanism (2) is disposed in the oral retainer (1) and cooperates with the oral retainer (1) to secure the tongue; The quantitative drug delivery device (3) is inserted from the outside of the oral fixator (1) and connected to the tongue depressor mechanism (2) for delivering the drug to the affected area.

2. A local drug delivery device for oral medicine treatment according to claim 1, characterized in that: The oral retainer (1) comprises: An upper fixing sleeve (103) is connected to the lower fixing sleeve (101) via a telescopic rod (103-1); The lower fixing sleeve (101) is a U-shaped structure and cooperates with the upper fixing sleeve (103) to separate the upper and lower teeth and open the oral cavity; The tooth fixing assembly (102) is embedded in the outer side of the lower fixing sleeve (101) and is used to further fix the lower fixing sleeve (101) to the lower teeth.

3. A local drug delivery device for oral medical treatment according to claim 2, characterized in that: The lower fixing sleeve (101) comprises: The U-shaped splint (101-1) is a double-layer structure; A plurality of connecting columns (101-2) are arranged between the two U-shaped clamping plates (101-1) and are arranged close to the upper ends of the U-shaped clamping plates (101-1).

4. The local drug delivery device for oral medical treatment according to claim 2, characterized in that: The tooth fixing assembly (102) comprises: A synchronous limiting column (102-1) is rotatably arranged on the outside of the lower fixed sleeve (101) and is used to drive the synchronous belt (102-2) to rotate; A synchronous belt (102-2) is sleeved on the synchronous limit column (102-1) and the two driven rods (102-3) and is used to drive the two driven rods (102-3) to rotate; Two driven rods (102-3) are arranged on both sides of the synchronous limiting column (102-1); The tooth limiting plate (102-4) is arranged between the two U-shaped clamping plates (101-1) and is connected to the driven rod (102-3), and is used to fix the lower fixing sleeve (101) to the lower teeth.

5. The local drug delivery device for oral medical treatment according to claim 2, characterized in that: The tongue depressing mechanism (2) comprises: A tongue depressor (201) is hinged to the inner wall of the lower fixing sleeve (101); A tongue depressor area enlarging component (202) is arranged around and through the lower fixing sleeve (101) and is arranged on the lower side of the tongue depressor (201); A tongue depressor angle adjustment component (203) is provided on the upper side of the tongue depressor (201) and is used in conjunction with the upper palate of the oral cavity to adjust the inclination angle of the tongue depressor (201); The limiting assembly (204) is arranged on the lower side of the tongue depressor (201) and connected to the inner wall of the lower fixing sleeve (101), and is used to limit the rotation angle of the tongue depressor (201).

6. The local drug delivery device for oral medical treatment according to claim 5, characterized in that: The tongue depressor area enlargement component (202) comprises: A pull rope (202-1) is wound around the tooth fixing assembly (102) and passes through the lower fixing sleeve (101), while movably passing through the limiting block (202-1A) to connect with the push plate (202-2); A push plate (202-2) is slidably arranged at the bottom end of the tongue depressor (201) and is connected to the tongue depressor (201) via an elastic member (202-4); The two arc-shaped plates (202-3) are movably connected to both sides of the push plate (202-2) via a connecting rod (202-3A).

7. The local drug delivery device for oral medical treatment according to claim 5, characterized in that: The tongue depressor angle adjustment assembly (203) comprises: An electric telescopic rod (203-1) is provided near the free end of the tongue depressor (201); The arc-shaped top plate (203-2) is arranged at the telescopic end of the electric telescopic rod (203-1) and is used in conjunction with the upper palate of the oral cavity to adjust the angle of the tongue depressor (201).

8. The local drug delivery device for oral medical treatment according to claim 2, characterized in that: The limiting assembly (204) includes: A limiting plate (204-1) is provided on the lower side of the tongue depressor (201) and is connected to the lower fixing sleeve (101); The second elastic member (204-2) is sleeved on the limiting plate (204-1) and connected to the tongue depressor (201).

9. The local drug delivery device for oral medical treatment according to claim 5, characterized in that: The dosing device (3) comprises: A syringe (301) is arranged outside the lower fixed sleeve (101) and is connected to a liquid medicine for repeated administration into the oral cavity; A drug delivery tube (302) is connected to the end of the syringe (301) and is used to deliver the drug solution directly into the oral cavity; A rotating and telescopic assembly (303) is provided at the free end of the tongue depressor (201) and is connected to the medicine delivery tube (302) for adjusting the direction and length of the medicine delivery tube (302) in the oral cavity; The drug administration limiting component (304) is connected to the syringe (301) and is used to control the amount of drug administered by the syringe (301) in a single administration.

10. The local drug delivery device for oral medical treatment according to claim 9, characterized in that: The syringe (301) comprises: An injection tube (301-1) is provided with a movable ball (301-1A) therein, and the end of the injection tube (301-1) is connected to the medicine suction tube (301-2) and is used to quantitatively deliver liquid medicine to the medicine delivery tube (302); The medicine suction tube (301-2) is connected to and used in conjunction with the drug administration limiting component (304) and is used to control the amount of external medicine liquid that the medicine suction tube (301-2) absorbs in a single time.

Images