Local administration device for oral medicine treatment
By designing a local drug delivery device that adapts to different oral anatomical features and using a combination of telescopic rods, rotating rods and clamping plates, the adaptability and positioning accuracy problems of traditional oral drug delivery devices are solved, precise drug delivery and improved safety are achieved, and it is suitable for a variety of oral medicine treatments.
Patent Information
- Application Number
- CN202511091401.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-05
- Publication Date
- 2025-10-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional oral drug delivery devices are difficult to adapt to the oral anatomical characteristics of different patients, have insufficient positioning accuracy, rough dosage control, and lack of dynamic adjustment, which affects the treatment effect and safety.
A local drug delivery device was designed, which includes upper and lower braces, an adjustment mechanism, a fixing mechanism and a clamping structure. Through the combination of a telescopic rod, a rotating rod and a clamping plate, oral adaptation, precise positioning and dosage control are achieved. Combined with the assistance of lighting and a micro camera, it provides field of view expansion and real-time positioning.
It achieves flexible adjustment based on the patient's oral anatomical characteristics and precise drug delivery, improves the safety and effectiveness of treatment, reduces patient discomfort and drug waste, and is suitable for a variety of local oral treatments.
Smart Images

Figure CN120815276A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical equipment, in particular to a local drug delivery device for oral medicine treatment. Background Art
[0002] In oral medicine treatment, the accuracy and safety of local drug delivery are crucial to the treatment effect. In the existing technology, traditional oral drug delivery devices generally have the following problems:
[0003] On the one hand, the mouth opening adjustment function is single and difficult to adapt to the oral anatomical characteristics of different patients. For children or elderly patients, due to differences in oral physiological structure, traditional fixed opening devices may cause excessive distraction or insufficient support of the temporomandibular joint, increasing patient discomfort and even the risk of injury.
[0004] On the other hand, the positioning accuracy of the drug delivery device is insufficient. Traditional methods mostly rely on handheld operation by medical staff and lack a stable mechanical fixed structure. The drug delivery position may deviate due to swallowing by the patient, tongue movement or hand shaking of the medical staff. It is especially difficult to achieve accurate positioning in the deep area of the mouth, which affects the efficacy of the drug.
[0005] In addition, the dosage control is rough and lacks a dynamic adjustment mechanism. Traditional syringes or droppers are difficult to accurately control the release rate and dosage of trace amounts of liquid medicine. Excessive local drug concentration may cause irritation due to rapid injection, or the treatment efficiency may be affected due to slow flow rate. For scenarios requiring long-term or fractionated drug administration, there is a lack of real-time adjustment and feedback functions, making it difficult to meet individualized treatment needs.
[0006] In view of this, an object of the present invention is to provide a local drug delivery device for oral medical treatment to address the deficiencies in the prior art. Summary of the Invention
[0007] In view of the shortcomings of the existing technology, the present invention provides a local drug delivery device for oral internal medicine treatment, which solves the problem of insufficient positioning accuracy of traditional drug delivery devices.
[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a local drug delivery device for oral internal medicine treatment, comprising an upper brace, a lower brace is arranged above the upper brace, tooth sockets are arranged on the outside of the two braces, and an adjustment mechanism is arranged between the two braces, which is used to adjust the opening and closing degree of the device. A fixing mechanism is fixedly connected between the two adjusting mechanisms, and the fixing mechanism includes a fixed fine-tuning component and an auxiliary component, which is used to fix the drug feeding device and fine-tune the angle. A clamping structure is fixedly installed on both sides of the outside of the fixing mechanism, and the clamping structure includes a rotating component and a clamping component, which is used to further clamp and fix the drug feeding device. The drug feeding device includes a drug delivery mechanism, and the drug delivery mechanism also includes a drug feeding component and an observation and adjustment component, which is used to inject the medicine into the patient's mouth while observing and adjusting.
[0009] Preferably, the adjustment mechanism includes two telescopic rods fixedly mounted on the upper part of the lower braces, the output ends of the two telescopic rods are fixedly connected to the bottom of the upper braces, adjustment grooves are provided on the inner sides of the two braces, sliders are slidably connected inside the two adjustment grooves, and sliding rods are fixedly mounted on the upper parts of the two sliders.
[0010] Preferably, the fixed fine-tuning component in the fixing mechanism includes a fixed frame fixedly connected between one end of the two sliding rods, and a rotating rod is rotatably connected on both sides of the interior of the fixed frame. One end of the two rotating rods is fixedly connected to the two sides of the exterior of the fixing ring, and a rubber pad is provided on the inside of the fixing ring.
[0011] Preferably, the auxiliary component includes a plurality of lighting beads arranged on one side of the fixing ring, and reflectors are also arranged on both sides of the interior of the fixing frame.
[0012] Preferably, the rotating assembly in the clamping structure includes two rotating rods rotatably connected to both sides of the outside of the fixed frame, one end of each of the two rotating rods is fixedly connected to a fixed plate, and one side of each of the two fixed plates is fixedly connected to a spring.
[0013] Preferably, the clamping assembly includes clamping plates fixedly connected to one end of the two springs, and rubber pads 2 are provided on the inner sides of the two clamping plates.
[0014] Preferably, the drug feeding component in the drug delivery mechanism includes a drug feeding barrel, a drug discharging end is fixedly mounted at the front end of the drug feeding barrel, a piston push rod is provided at the rear end of the drug feeding barrel, a push plate is fixedly mounted at the rear end of the piston push rod, and the surface of the push plate is provided with anti-slip grooves.
[0015] Preferably, the observation and adjustment component includes a sponge pad arranged at the front end of the medicine outlet end, a ball valve is provided on the outer wall of the medicine outlet end, and miniature cameras are provided on both sides of the front end of the medicine inlet barrel.
[0016] Preferably, the two sliding rods slide along with the two telescopic rods respectively.
[0017] Preferably, the two clamping plates are both U-shaped.
[0018] The present invention provides a local drug delivery device for oral medicine treatment. It has the following beneficial effects:
[0019] 1. The present invention can flexibly adjust the distance between the upper and lower braces according to the patient's oral opening and closing needs through the extension and retraction of the telescopic rod. At the same time, the fixing mechanism is maintained in the middle of the mouth through the linkage of the slider and the slide rod, thereby achieving precise adjustment of the opening and closing degree of the device, adapting to the oral anatomical characteristics of different patients, providing a basis for the stable positioning and treatment operation of the subsequent drug delivery device, and improving the adaptability of the device to different oral conditions.
[0020] 2. The present invention achieves fine adjustment of the angle of the medicine feeding device by driving the fixed ring to rotate through the rotating rod 1, and combined with the elastic fixation of the rubber pad 1, it can accurately align with the treatment area; and the lighting beads and reflectors of the auxiliary components can provide sufficient lighting and expand the field of view, helping doctors to clearly observe the deep part and hidden parts of the oral cavity, solving the problems of insufficient light and limited field of view in traditional treatment, and significantly improving the accuracy of the drug administration operation and the doctor's observation effect of the treatment area.
[0021] 3. The present invention adjusts the direction of the clamping plate through the rotating rod 2, and through the elastic clamping force of the spring combined with the anti-slip design of the rubber pad 2, it can stably fix the drug feed cartridges of different diameters and at the same time buffer the external force of the patient's movement; the image is then transmitted in real time through the micro camera of the drug delivery mechanism, and the ball valve accurately controls the flow rate and switch of the drug solution, and the sponge pad absorbs the drug solution and reduces irritation, realizing precise control of the entire process from fixation of the drug delivery device, visual positioning to precise drug delivery, thereby improving the safety and effectiveness of the treatment, reducing drug waste and patient discomfort, and being suitable for a variety of local treatment scenarios in oral medicine. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the left front side of the present invention;
[0023] Figure 2 It is a schematic diagram of the right rear side of the present invention;
[0024] Figure 3 It is a schematic diagram of the adjustment mechanism of the present invention;
[0025] Figure 4 It is a schematic diagram of the fixing mechanism of the present invention;
[0026] Figure 5 It is a schematic diagram of the clamping structure of the present invention;
[0027] Figure 6 Schematic diagram of the drug delivery mechanism of the present invention;
[0028] Figure 7 This is a schematic diagram of the medicine pushing structure of the present invention;
[0029] Figure 8 It is a schematic diagram of the fixing ring structure of the present invention.
[0030] Among them, 1. Upper braces; 2. Lower braces; 3. Tooth sockets; 4. Adjustment mechanism; 401. Telescopic rod; 402. Adjustment slot; 403. Slider; 404. Sliding rod; 5. Fixing mechanism; 501. Fixing frame; 502. Rotating rod 1; 503. Fixing ring; 504. Rubber pad 1; 505. Illuminating beads; 506. Reflector; 6. Clamping structure; 601. Rotating rod 2; 602. Fixing plate; 603. Spring; 604. Clamping plate; 605. Rubber pad 2; 7. Dosing mechanism; 701. Drug inlet cartridge; 702. Drug outlet; 703. Miniature camera; 704. Ball valve; 705. Sponge pad; 706. Piston push rod; 707. Push plate; 708. Anti-slip texture. DETAILED DESCRIPTION
[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. 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 making creative efforts are within the scope of protection of the present invention.
[0032] Please see the attached Figure 1 -Attached Figure 8 An embodiment of the present invention provides a local drug delivery device for oral medicine treatment, comprising an upper brace 1, a lower brace 2 is arranged above the upper brace 1, tooth sockets 3 are arranged on the outside of the two braces, and an adjustment mechanism 4 is arranged between the two braces, which is used to adjust the opening and closing degree of the device. A fixing mechanism 5 is fixedly connected between the two adjustment mechanisms 4, and the fixing mechanism 5 includes a fixed fine-tuning component and an auxiliary component, which is used to fix the drug feeding device and fine-tune the angle. A clamping structure 6 is fixedly installed on both sides of the outside of the fixing mechanism 5, and the clamping structure 6 includes a rotating component and a clamping component, which is used to further clamp and fix the drug feeding device. The drug feeding device includes a drug delivery mechanism 7, which further includes a drug feeding component and an observation and adjustment component, which is used to inject the drug into the patient's mouth while observing and adjusting.
[0033] The adjustment mechanism 4 includes two telescopic rods 401 fixedly mounted on the upper part of the lower braces 2. The output ends of the two telescopic rods 401 are fixedly connected to the bottom of the upper braces 1. The inner sides of the two braces are provided with adjustment slots 402. The insides of the two adjustment slots 402 are slidably connected to sliders 403. The upper parts of the two sliders 403 are fixedly mounted with slide rods 404.
[0034] Specifically, the adjustment mechanism 4 comprises two telescopic rods 401 fixedly mounted on the upper portion of the lower brace 2. It is driven in either an electric or manual mode, with the output end fixedly connected to the bottom of the upper brace 1, enabling adjustable opening and closing stroke. Adjustment slots 402 are defined on the inside of each brace, and sliders 403, which slide internally and are fixedly connected to the slide rods 404, slide synchronously along the adjustment slots 402, ensuring that the fixing mechanism 5 is always positioned in the center of the mouth, preventing positioning deviations caused by opening and closing.
[0035] The fixed fine-tuning assembly in the fixing mechanism 5 includes a fixed frame 501 fixedly connected between one end of the two sliding rods 404. The fixing frame 501 has two rotating rods 502 rotatably connected on both sides thereof. One end of each rotating rod 502 is fixedly connected to the outer sides of a fixing ring 503. A rubber pad 504 is provided on the inner side of the fixing ring 503.
[0036] Specifically, the fixed fine-adjustment assembly within the fixing mechanism 5 includes a fixing frame 501, which is connected to the adjustment mechanism 4 via a slide rod 404, forming a transverse support frame. Rotating rods 502 on either side of the fixing frame 501 can rotate 360°, driving the fixing ring 503 to adjust its angle. The rubber pad 504 inside the fixing ring 503 provides an elastic cushioning effect, adapting to different diameters of the drug inlet cartridge 701. This frictional force secures the device while preventing physical damage.
[0037] The auxiliary components include a plurality of lighting beads 505 arranged on one side of the fixing ring 503, and reflectors 506 are also arranged on both sides of the interior of the fixing frame 501;
[0038] Specifically, the auxiliary components include multiple lighting beads 505 positioned on one side of the fixed ring 503. These utilize LED cold light sources with a color temperature close to natural light, illuminating the deep oral treatment area. Reflectors 506 on either side of the fixed frame 501 reflect light to hidden areas such as the spaces between teeth, expanding the doctor's field of view and addressing the lack of light in traditional dental treatments.
[0039] The rotating assembly in the clamping structure 6 includes a second rotating rod 601 rotatably connected to both sides of the fixed frame 501. One end of each of the two second rotating rods 601 is fixedly connected to a fixed plate 602. One side of each of the two fixed plates 602 is fixedly connected to a spring 603.
[0040] Specifically, the rotating assembly in the clamping structure 6 includes a second rotating rod 601, which is rotatably connected to the fixed frame 501 and can be flexibly rotated to adjust the clamping direction. The fixing plate 602 at one end of the two second rotating rods 601 is connected to a spring 603, which provides a constant elastic clamping force to meet the multi-angle fixing requirements of the drug feeder.
[0041] The clamping assembly includes a clamping plate 604 fixedly connected to one end of two springs 603, and a rubber pad 605 is provided on the inner side of each clamping plate 604;
[0042] The two clamping plates 604 are both U-shaped;
[0043] Specifically, the clamping assembly comprises two U-shaped clamping plates 604. The inner rubber pad 605 features anti-slip serrations to increase friction with the drug inlet cartridge 701, ensuring stable fixation. The U-shaped design accommodates various shapes of drug inlet devices, and the elastic deformation of the spring 603 allows the clamping plates 604 to adapt to the device diameter for quick fixation.
[0044] The drug feeding assembly in the drug delivery mechanism 7 includes a drug feeding cartridge 701, a drug outlet 702 fixedly mounted at the front end of the drug feeding cartridge 701, a piston push rod 706 disposed at the rear end of the drug feeding cartridge 701, a push plate 707 fixedly mounted at the rear end of the piston push rod 706, and a non-slip pattern 708 disposed on the surface of the push plate 707;
[0045] Specifically, the drug delivery assembly within the drug delivery mechanism 7 includes a drug delivery cartridge 701, made of transparent medical plastic, allowing for easy visualization of the remaining drug volume. The front drug delivery port 702 features interchangeable nozzles of varying specifications, adapting to different treatment areas, such as periodontal pockets and cavities. An internal piston push rod 706 is linked to a push plate 707, whose anti-slip texture 708 enhances the stability of the doctor's fingertips during operation, ensuring a precise delivery of the drug solution.
[0046] The observation and adjustment assembly includes a sponge pad 705 provided at the front end of the drug outlet 702, a ball valve 704 provided on the outer wall of the drug outlet 702, and micro cameras 703 provided on both sides of the front end of the drug inlet cartridge 701;
[0047] Specifically, the observation and adjustment components include a sponge pad 705 at the front of the drug outlet 702, which absorbs excess liquid medicine to prevent direct impact on the mucosa and irritation. A ball valve 704 on the outer wall of the drug outlet 702 precisely controls the flow rate of the liquid medicine, enabling switching between drip and spray modes. Miniature cameras 703 on both sides of the front of the drug inlet 701 transmit real-time images of the treatment area to an external display screen, assisting the doctor in precise positioning.
[0048] The two sliding rods 404 slide along with the two telescopic rods 401 respectively;
[0049] Specifically, the two sliding rods 404 are vertically fixedly connected to the slider 403, and slide in the adjustment slot 402 synchronously with the rise and fall of the telescopic rod 401, ensuring that the lateral position of the fixing mechanism 5 is always aligned with the central axis of the oral cavity, avoiding the deviation caused by the opening and closing of the upper and lower braces 2, and improving the overall stability of the device.
[0050] Working Principle: This device is based on an upper brace 1 and a lower brace 2 as its basic support structure. The outer tooth socket 3 fits snugly against the patient's upper and lower dentition, achieving initial fixation through the natural structure of the teeth. During treatment, a telescopic rod 401, affixed to the upper portion of the lower brace 2, drives the upper brace 1 vertically, based on the patient's oral opening and closing needs. Simultaneously, a slider 403 within an adjustment slot 402 on the inner side of the brace slides as the telescopic rod 401 expands and contracts, driving the synchronous translation of the slider 404. This ensures that the fixing mechanism 5 remains in the central operating area of the mouth, ensuring the stability of the subsequent medication delivery device.
[0051] The fixed frame 501 is connected to the adjustment mechanism 4 via a slide bar 404, forming a lateral support. A rotating rod 1 502 within the fixed frame 501 drives the fixed ring 503 to rotate, thereby adjusting the angle of the medication inlet. When administering medication to the periodontal pockets of the posterior teeth, rotating the rotating rod 1 502 causes the fixed ring 503 to tilt the medication inlet cartridge 701 to the appropriate angle. The rubber pad 1 504 initially secures the cartridge through elastic friction, preventing damage from rigid clamping. The illuminating beads 505 in the auxiliary assembly illuminate the treatment area, addressing the problem of insufficient light deep in the mouth. The reflector 506, through curved reflection, expands the field of view, helping the doctor observe hidden areas.
[0052] To further ensure the stability of the medication feeder, a second rotating rod 601 pivots around the fixed frame 501, driving the fixed plate 602 to adjust its clamping direction, aligning the clamping plate 604 with the center of the medication feeder cartridge 701. The elastic deformation of the spring 603 provides a continuous clamping force, ensuring the cartridge is securely fixed while also buffering the impact of external forces caused by patient movement. Two second rubber pads 605 feature anti-slip grooves 708 to increase friction, adapting to medication feeder cartridges 701 of varying diameters while preventing wear on the device caused by hard metal contact.
[0053] A piston push rod 706 inside the drug inlet cartridge 701 is linked to a push plate 707. The doctor presses the push plate 707 with their fingers, pushing the piston. Meanwhile, the anti-slip pattern 708 on the surface enhances operational stability, forcing the drug solution out of the drug outlet 702. A micro-camera 703 captures real-time images of the treatment area and transmits them to an external display for precise positioning. A ball valve 704 quickly opens and closes the drug channel or adjusts the flow rate. A sponge pad 705 absorbs excess drug and cushions contact between the applicator and the mucosa, reducing irritation and preventing drug splashing.
[0054] The device solves the problems of single opening, insufficient field of view, and rough dosage in traditional oral drug delivery through the coordinated action of various mechanisms, visual operation of the micro camera 703 and lighting system, and precise control component ball valve 704 and elastic clamping. It realizes the automation and intelligence of the entire process from device wearing, angle adjustment, stable fixation to precise drug delivery, significantly improving treatment efficiency and patient comfort. It is suitable for various local oral treatment scenarios such as periodontal disease, mucosal disease, and caries.
[0055] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A local drug delivery device for oral medicine treatment, characterized in that: The invention comprises an upper brace (1), a lower brace (2) is arranged above the upper brace (1), a tooth socket (3) is arranged on the outer side of the two braces, an adjustment mechanism (4) is arranged between the two braces, which is used to adjust the opening and closing degree of the device, a fixing mechanism (5) is fixedly connected between the two adjustment mechanisms (4), the fixing mechanism (5) comprises a fixed fine-tuning component and an auxiliary component, which is used to fix and fine-tune the angle of the drug feeding device, a clamping structure (6) is fixedly installed on both sides of the outside of the fixing mechanism (5), the clamping structure (6) comprises a rotating component and a clamping component, which is used to further clamp and fix the drug feeding device, the drug feeding device comprises a drug feeding mechanism (7), the drug feeding mechanism (7) further comprises a drug feeding component and an observation and adjustment component, which is used to inject the drug into the patient's mouth and observe and adjust at the same time.
2. The local drug delivery device for oral medical treatment according to claim 1, characterized in that: The adjustment mechanism (4) comprises two telescopic rods (401) fixedly mounted on the upper portion of the lower brace (2), the output ends of the two telescopic rods (401) being fixedly connected to the bottom of the upper brace (1), the inner sides of the two braces being provided with adjustment slots (402), the interiors of the two adjustment slots (402) being slidably connected to sliders (403), and the upper portions of the two sliders (403) being fixedly mounted with slide rods (404).
3. The local drug delivery device for oral medical treatment according to claim 1, characterized in that: The fixed fine-tuning component in the fixing mechanism (5) includes a fixing frame (501) fixedly connected between one ends of two sliding rods (404), both sides of the interior of the fixing frame (501) are rotatably connected to a rotating rod (502), one end of each of the two rotating rods (502) is fixedly connected to the outer sides of a fixing ring (503), and a rubber pad (504) is provided on the inner side of the fixing ring (503).
4. The local drug delivery device for oral medical treatment according to claim 3, characterized in that: The auxiliary component comprises a plurality of lighting beads (505) arranged on one side of the fixing ring (503), and reflectors (506) are further arranged on both sides inside the fixing frame (501).
5. The local drug delivery device for oral medical treatment according to claim 1, characterized in that: The rotating assembly in the clamping structure (6) includes two rotating rods (601) rotatably connected to both sides of the outside of the fixed frame (501), one end of each of the two rotating rods (601) is fixedly connected to a fixed plate (602), and one side of each of the two fixed plates (602) is fixedly connected to a spring (603).
6. The local drug delivery device for oral medical treatment according to claim 1, characterized in that: The clamping assembly comprises a clamping plate (604) fixedly connected to one end of two springs (603), and a second rubber pad (605) is provided on the inner side of the two clamping plates (604).
7. The local drug delivery device for oral medical treatment according to claim 1, characterized in that: The drug feeding component in the drug delivery mechanism (7) includes a drug feeding barrel (701), a drug outlet end (702) is fixedly mounted at the front end of the drug feeding barrel (701), a piston push rod (706) is provided at the rear end of the drug feeding barrel (701), a push plate (707) is fixedly mounted at the rear end of the piston push rod (706), and a surface of the push plate (707) is provided with anti-slip patterns (708).
8. The local drug delivery device for oral medical treatment according to claim 7, characterized in that: The observation and adjustment assembly comprises a sponge pad (705) arranged at the front end of the medicine outlet end (702), a ball valve (704) is arranged on the outer wall of the medicine outlet end (702), and micro cameras (703) are arranged on both sides of the front end of the medicine inlet barrel (701).
9. The local drug delivery device for oral medical treatment according to claim 2, characterized in that: The two sliding rods (404) slide along with the two telescopic rods (401) respectively.
10. The local drug delivery device for oral medical treatment according to claim 6, characterized in that: The two clamping plates (604) are both U-shaped.
