A throat medicine spraying device with uniform spraying for postoperative care

Abstract

This invention relates to the field of medical tool technology, specifically to a postoperative care device for uniformly spraying medication onto the throat. The device includes a tongue depressor, with a bite block movably fitted onto the outer wall of the tongue depressor. An operating hole extends through both ends of the tongue depressor. A nozzle tube is located at the front end of each operating hole, and a camera unit is integrated on one side of the nozzle tube. The middle of the nozzle tube is rotatable along a horizontal axis via a rotating shaft. Adjustable airbags and elastic support plates are respectively located on the front and rear sides of the rotating shaft. An adjustment component for controlling the adjustable airbags is located at the rear end of the tongue depressor. This application, by placing a nozzle tube at the front end of the operating hole of the tongue depressor and integrating a camera unit on one side of the nozzle tube, allows for real-time observation of the location of the wound inside the throat during medication administration. This completely changes the traditional blind spraying method, significantly improving the accuracy of medication administration and ensuring accurate coverage of the target wound area.

Description

Technical Field

[0001] This invention relates to the field of medical tool technology, specifically to a postoperative care device for uniformly spraying medication onto the throat. Background Technology

[0002] Following throat surgery or endotracheal intubation, patients often experience mucosal damage, edema, pain, and ulcers in the throat, requiring local medication to reduce inflammation, relieve pain, and promote wound healing. Commonly used methods for throat medication include spray administration, topical application, and gargling. Due to the deep anatomical location of the throat and the presence of factors such as tongue obstruction and narrow oral cavity space, the accuracy of local throat medication administration has always been a challenge in clinical nursing.

[0003] Traditional throat medication administration methods typically involve using ordinary spray bottles or syringes with nozzles, with healthcare professionals applying the medication based on experience, or patients applying it blindly during self-care. This method has several drawbacks. First, the operator cannot directly observe the location of the wound inside the throat, and the medication often fails to accurately cover the target area, resulting in significant amounts of medication scattering in the oral cavity or non-lesioned areas of the posterior pharyngeal wall, leading to low drug utilization. Second, post-operative throat wounds are often located in hidden areas such as the tonsillar fossa, around the epiglottis, and near the glottis, making comprehensive coverage difficult with blind spraying. Third, the patient's tongue may move involuntarily during medication administration, potentially obstructing the operator's view or even scratching the wound, increasing patient pain and the risk of secondary injury. Fourth, because it is impossible to confirm whether the medication accurately reaches the wound, operators often tend to increase the frequency or dosage, posing a risk of overdose. Summary of the Invention

[0004] The purpose of this invention is to provide a postoperative care device for uniformly spraying throat medication, which solves the problem in the prior art where a large amount of medication is scattered in the oral cavity or non-lesioned areas of the posterior pharyngeal wall during medication application, resulting in low drug utilization.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A postoperative throat medication application device for even spraying includes a tongue depressor, a biting block movably fitted onto the outer wall of the tongue depressor, and an operating hole extending through both ends within the tongue depressor. A nozzle tube is located at the front end of the operating hole, and a camera unit is integrated on one side of the nozzle tube. The middle of the nozzle tube is rotatable along a horizontal axis via a rotating shaft. Adjustable airbags and elastic support plates are respectively located on the front and rear sides of the rotating shaft. An adjustment component for controlling the adjustable airbag is located at the rear end of the tongue depressor. This application, by placing a nozzle tube at the front end of the operating hole of the tongue depressor and integrating a camera unit on one side of the nozzle tube, allows for real-time observation of the pharyngeal wound location during medication administration. This completely changes the traditional blind spraying method, significantly improving medication accuracy, ensuring accurate coverage of the target wound area, reducing medication spillage and waste in non-lesion areas of the oral cavity, and greatly improving drug utilization. Simultaneously, the design of the tongue depressor and biting block effectively fixes the tongue position, preventing involuntary tongue movement from obstructing the operating view. More importantly, the nozzle tube is rotatably set in the middle via a pivot, and the angle can be adjusted by coordinating the airbag and elastic support plate. The operator can flexibly adjust the spray angle of the nozzle tube according to the specific location of the wound, so that the liquid can accurately reach hidden corners such as the tonsillar fossa, the epiglottis, and the vicinity of the glottis, achieving comprehensive and uniform coverage of the wound. This effectively avoids the problem of blindly increasing the frequency or amount of medication due to the inability to confirm the effect of medication, and reduces the risk of drug overdose.

[0007] A further technical solution involves an adjustment assembly comprising an adjustment column mounted on the rear outer wall of the tongue depressor. The adjustment column contains an air chamber, and its end away from the tongue depressor has a threaded hole communicating with the air chamber. A screw is threadedly connected to the threaded hole, and a piston is connected to one end of the screw within the air chamber. A knob plate is connected to the other end of the screw outside the adjustment column. The air chamber is connected to the adjusting air bladder via an air supply pipe. The adjustment assembly employs a transmission structure consisting of an adjustment column, air chamber, screw, piston, and knob plate. Rotating the knob plate drives the piston to move within the air chamber, thereby precisely controlling the amount of air supplied to the adjusting air bladder and achieving continuous stepless adjustment of the nozzle angle. Compared to button or gear-type adjustments, threaded drive adjustment has the advantages of high adjustment precision, good control feel, and stable angle maintenance. Medical staff can finely adjust the nozzle angle according to the real-time screen to ensure that the medicine is accurately sprayed onto the wound surface. At the same time, the threaded drive has a self-locking characteristic, and the nozzle tube can be stably maintained at the set angle after adjustment. It will not shift the angle due to air pressure rebound in the airbag or operation vibration, thus ensuring the stability and consistency of the drug administration process.

[0008] A further technical solution involves providing an air inlet on the outer wall of the regulating column, which communicates with the air chamber and is sealed with a plug. By providing this air inlet on the outer wall of the regulating column and attaching a sealing plug, air replenishment can be conveniently performed when gas leakage or insufficient pressure occurs in the air chamber due to long-term use of the device. This ensures that the regulating airbag can inflate normally to drive the nozzle tube, extending the device's lifespan and reliability. Simultaneously, the air inlet design also facilitates initial calibration and maintenance of the device. Medical personnel can flexibly adjust the initial air pressure in the air chamber according to actual usage needs to accommodate differences in the pharyngeal anatomy of different patients.

[0009] A further technical solution involves a mounting base slidably installed within the operating hole, with a mounting groove on the mounting base. The nozzle tube is installed within the mounting groove, and the rotating shaft is rotatably connected to the groove walls on both sides of the mounting groove. A baffle is installed on the rear side of the operating hole, and the baffle is connected to the mounting base via a spring. A slotted hole communicating with the operating hole is provided on the upper side of the rear end of the tongue depressor plate, and a slider is slidably installed within the slotted hole. The upper end of the slider is connected to a push plate on the upper side of the tongue depressor plate, and the lower end of the slider is connected to the mounting base within the operating hole via a pull rope. The camera unit includes a lens and an illumination source located at the front end, as well as a glass plate for protecting the lens. A scraper is slidably attached to the glass plate, and the upper and lower ends of the scraper are connected to the front end of the tongue depressor plate via elastic strips. Because breathing through the mouth produces a large amount of mist, which can blur the glass plate, a back-and-forth propulsion mechanism consisting of a mounting base, spring, baffle, slot, slider, push plate, and pull rope is used during operation. The operator simply pushes the push plate backward from the rear end of the tongue depressor, and the pull rope pulls the mounting base backward along the operating hole. As the mounting base moves backward, the elastic strip drives the scraper to clean the glass plate surface. This automatically removes mist droplets and medication residue from the glass plate surface, maintaining a clear view and ensuring that medical personnel can always clearly observe the wound, avoiding any impact on medication accuracy due to blurred vision.

[0010] A further technical solution involves incorporating an electrically connected battery unit, control chip, and Bluetooth unit within the camera unit, with the lens electrically connected to the control chip. This integrated battery unit, control chip, and Bluetooth unit wirelessly transmits the acquired image data to an external display device in real time. This eliminates the cumbersome cable connections of traditional wired camera devices, making the overall device lighter and more flexible. Operation is not restricted by cables, allowing for more free adjustment of the operating angle and distance. The built-in battery unit provides the device with independent power supply capabilities, while the Bluetooth wireless connection ensures the real-time nature and stability of image transmission. Patients can directly observe the internal condition of their throat on the screen, achieving precise visualization.

[0011] A further technical solution involves connecting an external spray bottle to the nozzle tube via a connecting hose. The medication is delivered from the external spray bottle through the connecting hose to the nozzle tube. This split-type medication delivery design allows for adjustable spray bottle capacity, meeting the needs of multiple administrations or administration to large wounds, avoiding the inconvenience of frequent dressing changes. Simultaneously, the external spray bottle is easy to hold and press, allowing medical staff to hold the tongue depressor with one hand for positioning and angle adjustment, while operating the spray bottle with the other to control the timing and dosage of medication. This two-handed operation is more in line with clinical usage habits and facilitates flexible control of the spray volume based on wound size.

[0012] A further technical solution involves a notch on the underside of the bite block. This notch conforms to the anatomical shape of the human tongue. When the patient's teeth bite down on the bite block, the tongue can naturally fit within the notch, avoiding discomfort caused by tongue compression and providing some restraint to prevent lateral movement that could interfere with the procedure. This ergonomic design effectively improves patient comfort during medication administration, reduces movement caused by discomfort, facilitates smooth operation for medical staff, and improves medication accuracy.

[0013] Compared with existing technologies, the beneficial effects of this invention are as follows: By setting a nozzle tube at the front end of the operating hole of the tongue depressor and integrating a camera unit on one side of the nozzle tube, the location of the wound inside the throat can be observed in real time during drug administration. This completely changes the traditional blind spraying method, significantly improves the accuracy of drug administration, ensures that the drug solution accurately covers the target wound area, reduces the waste of drug solution in non-lesion areas of the oral cavity, and greatly improves drug utilization. At the same time, the design of the tongue depressor combined with the biting block can effectively fix the position of the tongue and prevent the patient's tongue from involuntarily moving and obstructing the operating field of vision. More importantly, the nozzle tube is rotatably set in the middle through a rotating shaft, and the angle can be adjusted by adjusting the air bag and elastic support plate. The operator can flexibly adjust the spray angle of the nozzle tube according to the specific location of the wound, so that the drug solution can accurately reach the hidden corners such as the tonsillar fossa, the epiglottis, and the vicinity of the glottis, achieving comprehensive and uniform coverage of the wound. This effectively avoids the problem of blindly increasing the number of administrations or the dosage due to the inability to confirm the drug administration effect, and reduces the risk of drug overdose. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a postoperative care device for uniformly spraying throat medication according to the present invention.

[0015] Figure 2 This is a partial schematic diagram of a postoperative care device for uniformly spraying throat medication according to the present invention. Figure 1 .

[0016] Figure 3This is a partial schematic diagram of a postoperative care device for uniformly spraying throat medication according to the present invention. Figure 2 .

[0017] Figure 4 This is a cross-sectional schematic diagram of the tongue depressor of a postoperative care device for uniformly spraying throat medication according to the present invention.

[0018] Figure 5 This is a partial schematic diagram of the front end of the tongue depressor of a postoperative throat medication application device for uniform spraying, according to the present invention.

[0019] Icons: 1-Tongue depressor, 2-Bite block, 3-Operating hole, 4-Nozzle tube, 5-Camera unit, 6-Spindle, 7-Adjusting airbag, 8-Elastic support plate, 9-Adjusting column, 10-Air chamber, 11-Threaded hole, 12-Screw, 13-Piston, 14-Knob plate, 15-Air supply pipe, 16-Air replenishment hole, 17-Sealing plug, 18-Mounting base, 19-Mounting groove, 20-Baffle, 21-Spring, 22-Strip hole, 23-Slider, 24-Push plate, 25-Pull rope, 26-Glass plate, 27-Scraper, 28-Elastic strip, 29-Connecting hose, 30-External spray bottle, 31-Notch. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] Example 1:

[0022] In this embodiment, a postoperative care device for uniformly spraying throat medication is provided, including a tongue depressor 1, a biting block 2 movably sleeved on the outer wall of the tongue depressor 1, an operation hole 3 penetrating both ends of the tongue depressor 1, a nozzle tube 4 at the front end of the operation hole 3, a camera unit 5 on one side of the nozzle tube 4, the middle part of the nozzle tube 4 being rotatably mounted along a horizontal axis via a rotating shaft 6, and an adjusting airbag 7 and an elastic support plate 8 respectively on the front and rear sides of the nozzle tube 4 on the rotating shaft 6, and an adjusting component for controlling the adjusting airbag 7 at the rear end of the tongue depressor 1.

[0023] In its implementation, the tongue depressor 1 is made of medical-grade polymer materials, such as polypropylene (PP) and polycarbonate (PC). These materials are biocompatible, non-toxic, odorless, and easy to clean and disinfect, meeting the safety standards for medical devices. The tongue depressor 1 is flat, with a length of approximately 120mm to 180mm, a width of approximately 15mm to 25mm, and a thickness of approximately 8mm to 20mm. This size range ensures sufficient structural strength to withstand the pressure of the tongue without taking up too much oral space due to excessive size. The front end of the tongue depressor 1 has a rounded transition to avoid sharp edges scratching the oral mucosa.

[0024] The biting block 2 is movably fitted onto the outer wall of the tongue depressor 1. Specifically, the biting block 2 has a through hole in its center that matches the cross-sectional shape of the tongue depressor 1. The tongue depressor 1 passes through this through hole, allowing the biting block 2 to slide and adjust its position along the length of the tongue depressor 1 to accommodate different patients' oral cavity depths and mouth openings. The biting block 2 is made of medical-grade silicone or a soft elastomer with a Shore hardness of approximately 30 to 60 degrees, providing good elasticity and comfort. When the patient's upper and lower teeth occlude on the biting block 2, the soft material acts as a buffer, preventing direct hard-on-hard contact that could cause discomfort or injury. The upper and lower surfaces of the biting block 2 are respectively provided with occlusal grooves adapted to the morphology of the dental arch. The upper and lower teeth can be inserted into the corresponding grooves, increasing the stability of the bite and preventing the device from shifting due to the patient's teeth sliding during drug administration.

[0025] The operating hole 3 extends through the tongue depressor 1 along its length, from the rear end face to the front end face, forming a continuous channel. The cross-sectional shape of the operating hole 3 can be circular, elliptical, or rectangular. The diameter of the operating hole 3 is approximately 6mm to 17mm. This size is sufficient to accommodate internal components such as the nozzle tube 4 and the camera unit 5 without making the tongue depressor 1 too thick, thus affecting user comfort. The inner wall surface of the operating hole 3 is smooth to reduce frictional resistance when the internal components slide.

[0026] Nozzle tube 4 is located at the front end of operating port 3 and is the final actuator for dispensing the medication. The main body of nozzle tube 4 is a slender tubular structure with a spray orifice at the front end. Under pressure, the medication is ejected from the spray orifice to form a mist jet. The diameter of the spray orifice in nozzle tube 4 is approximately 0.3 mm to 1.0 mm, and the appropriate orifice diameter can be selected according to the viscosity of the medication and the required spray particle size. Nozzle tube 4 can be made of medical-grade stainless steel, polyetheretherketone (PEEK), or other corrosion-resistant and biocompatible materials to ensure that long-term contact with the medication will not cause chemical reactions or the release of harmful substances.

[0027] The camera unit 5 is located on one side of the nozzle tube 4, arranged parallel to the nozzle tube 4 at the front end of the operating hole 3. The camera unit 5 is compact, with a diameter or width not exceeding 5mm, to ensure it can be accommodated within the operating hole 3 without occupying excessive space. The front end of the camera unit 5 is approximately flush with or slightly rearward of the front end of the nozzle tube 4, ensuring that the camera unit 5 can clearly capture the tissue in front of the nozzle tube 4, while also preventing excessive protrusion of the camera unit 5 that could easily contact the wound and cause discomfort. A miniature image sensor, such as a CMOS or CCD image sensor, with a pixel count of at least 300,000, is located at the front end of the camera unit 5 to ensure sufficient image clarity to distinguish the specific location, size, and shape of the wound. The camera unit 5 also integrates an illumination source, such as miniature LED beads, to provide illumination in the dark environment deep in the throat, ensuring sufficient brightness for image acquisition. The wavelength of the illumination source is preferably cool white light within the visible light range, with a color temperature of approximately 5000K to 6500K, to accurately reproduce tissue color and facilitate accurate assessment of the wound condition.

[0028] The rotating shaft 6 is positioned along a horizontal axis, meaning its axis is parallel to the width of the tongue depressor 1 in the left-right direction. This allows the nozzle tube 4 to swing up and down in a vertical plane around this horizontal axis, thereby changing the elevation or depression angle of the spray direction. The rotating shaft 6 passes through the middle of the nozzle tube 4. Specifically, each side of the nozzle tube 4 has a shaft hole or bearing, and both ends of the rotating shaft 6 are supported on corresponding mounting structures, forming a stable rotating pair. The diameter of the rotating shaft 6 is approximately 1mm to 3mm, and it is made of stainless steel or hard plastic to ensure sufficient strength and wear resistance. The angle range of the nozzle tube 4 swinging around the rotating shaft 6 is approximately ±10-30 degrees, which is sufficient to cover wounds at different heights in the throat.

[0029] The regulating airbag 7 and the elastic support plate 8 are respectively located on the front and rear sides of the nozzle tube 4 on the rotating shaft 6, forming a pair of cooperating driving elements. Specifically, the regulating airbag 7 is located on the upper or lower side of the nozzle tube 4, on the front or rear side bounded by the rotating shaft 6, while the elastic support plate 8 is located on the opposite side. When the regulating airbag 7 inflates, its increased volume generates a thrust on one side of the nozzle tube 4, causing the nozzle tube 4 to deflect around the rotating shaft 6 to the other side; conversely, when the regulating airbag 7 deflates and contracts, the elastic force of the elastic support plate 8 pushes the nozzle tube 4 to rotate in the opposite direction. The regulating airbag 7 is made of medical-grade silicone or polyurethane and other elastic materials, possessing good elasticity and airtightness. Its inflation direction is structurally constrained, mainly deforming along the direction that pushes the nozzle tube 4. The elastic support plate 8 can be made of thin sheet-like elastic metal such as stainless steel spring sheet or elastic plastic such as POM or PC sheet, possessing stable elastic restoring force, and can reliably push the nozzle tube 4 back to its original position when the regulating airbag 7 depressurizes. The positions of the airbag 7 and the elastic support plate 8 can be interchanged, that is, the airbag 7 is on top and the elastic support plate 8 is on the bottom, or the airbag 7 is on the bottom and the elastic support plate 8 is on top, as long as the nozzle tube 4 can be driven to swing by inflation and deflation. This embodiment does not impose specific restrictions on this.

[0030] The adjustment component is located at the rear end of the tongue depressor 1 and is used to control the inflation and deflation of the adjustment airbag 7, thereby adjusting the angle of the nozzle tube 4. The adjustment component and the adjustment airbag 7 are connected by an air passage. The operator can easily operate the adjustment component from the handheld part at the rear end of the tongue depressor 1 without having to put their hand into the patient's mouth, making the operation safe and hygienic.

[0031] This application enables visualized throat medication application. The camera unit 5 allows for real-time observation of the throat's internal condition, and the adjustable angle of the nozzle tube 4 ensures precise and even application of the medication to the target wound. This solves the technical problems of low accuracy, low drug utilization, and incomplete wound coverage associated with traditional blind spraying methods. The tongue depressor 1 and the bite block 2 effectively fix the tongue, eliminating tongue obstruction and disturbance, thus improving the safety and comfort of the procedure.

[0032] Example 2:

[0033] In some preferred embodiments of this application, the adjustment assembly includes an adjustment column 9, which is installed on the outer wall of the rear end of the tongue depressor 1. An air chamber 10 is provided inside the adjustment column 9. A threaded hole 11 communicating with the air chamber 10 is provided at one end of the adjustment column 9 away from the tongue depressor 1. A screw 12 is threadedly connected to the threaded hole 11. A piston 13 is connected to one end of the screw 12 placed inside the air chamber 10, and a knob plate 14 is connected to the other end outside the adjustment column 9. The air chamber 10 is connected to the adjustment air bag 7 through an air supply pipe 15.

[0034] In practical implementation, the adjusting column 9 is a hollow cylindrical or near-cylindrical component, with a length of approximately 30mm to 50mm and an outer diameter of approximately 8mm to 15mm. Its compact size means that its installation on the rear outer wall of the tongue depressor 1 does not significantly increase the device's volume, facilitating handheld operation. The adjusting column 9 can be made of lightweight materials such as medical-grade plastics like PC, ABS, or aluminum alloy, minimizing weight while ensuring structural strength. The connection between the adjusting column 9 and the tongue depressor 1 can be achieved through integral injection molding, adhesive bonding, or snap-fit ​​connections, ensuring a secure and reliable connection that will not loosen or detach during use.

[0035] The air chamber 10 is a sealed cavity formed inside the regulating column 9, serving as the gas storage and pressurization space for the entire air pressure regulating system. The volume of the air chamber 10 is approximately 2ml to 8ml, sufficient to provide the amount of gas required for the regulating airbag 7 to expand from its minimum volume to its maximum volume, without making the regulating column 9 too bulky due to an excessively large air chamber 10. The inner wall surface of the air chamber 10 is smooth, resulting in low frictional resistance when the piston 13 moves within it, and a smooth adjustment feel.

[0036] A threaded hole 11 is located at the end of the adjusting column 9 furthest from the pressure tongue plate 1 and communicates with the air chamber 10. The internal thread of the threaded hole 11 matches the external thread of the screw 12. The thread type can be a metric fine thread to improve transmission accuracy. The thread pitch is approximately 0.5 mm to 1.0 mm. The smaller pitch results in a smaller forward or backward distance of the piston 13 per revolution of the knob plate 14, thereby achieving more precise air pressure adjustment.

[0037] The screw 12 is a slender threaded rod that passes through the threaded hole 11, with one end extending into the air chamber 10 and the other end extending out of the adjusting pin 9. The screw 12 is made of a material with good wear resistance, such as stainless steel or engineering plastics, to ensure the service life of the threaded pair. The middle threaded section of the screw 12 fits tightly with the threaded hole 11, ensuring both airtightness and smooth transmission.

[0038] Piston 13 is fixedly connected to one end of screw 12 that extends into air chamber 10, and moves back and forth within air chamber 10 as screw 12 rotates. The outer diameter of piston 13 matches the inner diameter of air chamber 10, and a sealing ring, such as an O-ring, is provided on the outer circumference of piston 13 to ensure that the gas on both sides of piston 13 does not leak from each other, maintaining the airtightness of air chamber 10. Piston 13 divides air chamber 10 into two chambers, front and rear. The front chamber, near the pressure plate 1, is connected to regulating air bladder 7 via air supply pipe 15, while the rear chamber is either open to the outside atmosphere or a sealed chamber, depending on the specific design. When screw 12 rotates and drives piston 13 forward, the volume of the front chamber decreases and the air pressure increases, forcing gas into regulating air bladder 7 and causing it to inflate. When screw 12 rotates in the opposite direction and drives piston 13 backward, the volume of the front chamber increases and the air pressure decreases, causing gas in regulating air bladder 7 to flow back into air chamber 10, and air bladder to contract.

[0039] The knob plate 14 is fixedly connected to one end of the screw 12 extending outside the adjusting post 9, and is a component for manual rotation by the operator. The knob plate 14 is disc-shaped or wing-shaped, with a diameter of approximately 15mm to 30mm. Its sides are provided with anti-slip textures such as knurled textures or axial ridges to increase the friction between the fingers and the knob plate 14, facilitating rotation. The knob plate 14 can be made of plastic or rubber, with a comfortable surface feel. The operator only needs to pinch the knob plate 14 with their thumb and forefinger and rotate it to drive the screw 12 to rotate, which in turn moves the piston 13, thereby achieving air pressure adjustment and nozzle angle control.

[0040] The air supply tube 15 serves as a gas channel connecting the air chamber 10 and the regulating airbag 7. One end of the tube is connected to the air outlet at the front end of the air chamber 10, and the other end extends along the inside of the tongue depressor 1 to the front end, connecting to the regulating airbag 7. The air supply tube 15 is made of medical-grade silicone or PU tubing, with an inner diameter of approximately 0.5mm to 2mm. It possesses good flexibility and airtightness, allowing it to adapt to the curved shape of the tongue depressor 1 without affecting gas flow. The air supply tube 15 can be embedded in the inner wall of the operating hole 3 of the tongue depressor 1 or laid along the inside of the operating hole 3, without occupying the effective space of the operating hole 3.

[0041] The adjustment component achieves precise control of the air pressure of the regulating airbag 7 through the screw 12 and piston 13 mechanism, thereby realizing stepless continuous adjustment of the nozzle tube 4 angle; the self-locking characteristic of the threaded drive ensures that the angle is stably maintained after adjustment, without the need for an additional locking mechanism, the structure is simple and reliable, and the operation is precise and delicate.

[0042] Example 3:

[0043] In some preferred embodiments of this application, the outer wall of the adjusting column 9 is provided with an air supply hole 16 that communicates with the air chamber 10, and the air supply hole 16 is sealed by a sealing plug 17.

[0044] In practice, the air supply hole 16 is located on the side wall of the adjusting column 9 and is connected to the front chamber of the air chamber 10. The diameter of the air supply hole 16 is approximately 1mm to 3mm, which facilitates the air supply operation and avoids sealing difficulties due to excessively large hole diameter.

[0045] The sealing plug 17 is made of medical-grade silicone or rubber and is cylindrical or conical in shape. Its size fits tightly with the air inlet 16, and after insertion, it can reliably seal the air chamber 10 to prevent gas leakage. The outer end of the sealing plug 17 may be provided with a flange or pull ring for easy removal, so that the sealing plug 17 can be easily removed with tweezers or fingers when air replenishment is needed.

[0046] The air replenishment port 16 allows the device to be easily replenished when the gas in the air chamber 10 is insufficient, ensuring the reliability and durability of the adjustment function and extending the service life of the device. It also provides convenience for the initial calibration and personalized adjustment of the device, and the initial air pressure can be flexibly set according to the specific use scenario.

[0047] Example 4:

[0048] In some preferred embodiments of this application, a mounting base 18 is slidably installed in the operating hole 3, and a mounting groove 19 is provided on the mounting base 18. The nozzle pipe 4 is installed in the mounting groove 19. The rotating shaft 6 is rotatably connected to the groove walls on the left and right sides of the mounting groove 19. A baffle 20 is provided on the rear side of the operating hole 3 and the mounting base 18 is connected to the baffle 20 by a spring 21. A slot 22 communicating with the operating hole 3 is provided on the upper side of the rear end of the tongue depressor 1. A slider 23 is slidably installed in the slot 22. A push plate 24 is connected to the upper side of the tongue depressor 1 at the upper end of the slider 23. The lower end of the slider 23 is connected to the mounting base 18 in the operating hole 3 by a pull rope 25. The camera unit 5 includes a lens and an illumination source provided at the front end, as well as a glass plate 26 for protecting the lens. A scraper 27 is slidably attached to the glass plate 26. The upper and lower ends of the scraper 27 are connected to the front end of the tongue depressor 1 by an elastic strip 28.

[0049] The lens is the front-end optical component of the camera unit 5, composed of a microlens group, used to focus the optical image in front onto the image sensor. The lens diameter is approximately 2mm to 4mm, and the focal length is determined according to design requirements, generally adjusted within the range of 10mm to 50mm to ensure clear imaging within the throat operating distance. Illumination LEDs are arranged around the lens.

[0050] A glass plate 26 is positioned at the front of the lens to protect it from direct contamination by medications, moisture, oral secretions, etc. The glass plate 26 is made of optical-grade transparent materials, such as quartz glass, optical glass, or transparent plastics like PMMA or PC, with high light transmittance (visible light transmittance not less than 90%), ensuring no significant impact on image quality. The glass plate 26 is approximately 0.3mm to 1mm thick, and its edges are fixed to the front of the camera unit 5 housing by adhesive or pressing. The outer surface of the glass plate 26 may be coated with a hydrophobic coating, such as a nano-silica coating, making it difficult for droplets to adhere to the surface and easy for them to roll off, further reducing contamination.

[0051] The scraper 27 is slidably attached to the outer surface of the glass plate 26 and is a cleaning element used to scrape away contaminants from the surface of the glass plate 26. The scraper 27 has a thin, sheet-like structure, extending horizontally along the width of the glass plate 26, and is generally elongated. The edge of the scraper 27 that contacts the glass plate 26 is made of a soft and wear-resistant material, such as medical-grade silicone, fluororubber, or microfiber, which effectively removes droplets and drug residues without scratching the surface of the glass plate 26. The cross-section of the scraper 27 can be rectangular, trapezoidal, or semi-circular to ensure sufficient adhesion pressure and contact area.

[0052] The self-cleaning mechanism works as follows: Since breathing produces a large amount of mist, blurring the glass plate 26, the operator uses a forward-backward propulsion mechanism consisting of the mounting base 18, spring 21, baffle 20, slot 22, slider 23, push plate 20, and pull rope 25. The operator simply pushes the push plate 20 backward from the rear end of the tongue depressor 1, and the pull rope 25 pulls the mounting base backward along the operating hole. As the mounting base moves backward, the elastic strip 28 drives the scraper 27 to scrape the surface of the glass plate 26, cleaning it. This automatically removes mist droplets and medication residue from the surface of the glass plate 26, maintaining a clear view of the lens and ensuring that medical personnel can always clearly observe the wound, avoiding any impact on medication accuracy due to blurred vision.

[0053] Example 5:

[0054] In some preferred embodiments of this application, the camera unit 5 is provided with an electrically connected battery unit, a control chip, and a Bluetooth unit, and the lens is electrically connected to the control chip.

[0055] In practical implementation, the battery unit provides power to the camera unit 5, employing a miniature rechargeable battery or button cell, such as a lithium polymer battery or a silver oxide button cell. The battery capacity is approximately 50mAh to 200mAh, capable of supporting continuous operation of the camera unit 5 for 30 minutes to over 2 hours, meeting the needs of multiple drug delivery operations. The battery unit is located at the rear end inside the housing of the camera unit 5, and is electrically connected to the control chip and other components via a flexible printed circuit board (FPC) or wires. A miniature charging interface, such as magnetic charging contacts, can be provided on the housing of the camera unit 5 for battery charging.

[0056] The control chip is the core control and processing component of camera unit 5, employing a dedicated image processing microcontroller or System-on-a-Chip (SoC). The control chip receives image signals from the lens image sensor, performs preprocessing on the images, including automatic exposure, automatic white balance, color correction, and noise suppression, and then transmits the processed image data via Bluetooth. The control chip also manages the charging and discharging of the battery unit, controls the switching and brightness of the lighting LEDs, and handles Bluetooth communication protocols. The control chip's operating frequency is sufficient to support real-time video transmission with a frame rate of no less than 25fps, ensuring smooth, stutter-free video playback.

[0057] The Bluetooth unit is used for wireless communication with external display devices, transmitting image data captured by camera unit 5 to the external display terminal in real time. The Bluetooth unit uses Bluetooth Low Energy (BLE) or classic Bluetooth technology, supporting Bluetooth 4.0 and above, with a transmission distance of approximately 5 to 10 meters, fully meeting the needs of clinical applications. The Bluetooth antenna can be built into the housing of camera unit 5, using a ceramic or PCB antenna to ensure stable signal transmission. Through Bluetooth wireless connection, medical personnel can view images of the inside of the throat in real time on compatible display devices such as dedicated displays, tablets, and smartphones, with image latency controlled within 100 milliseconds to ensure real-time operation.

[0058] The lens and control chip are electrically connected via flexible ribbon cables or wires. The image sensor transmits the acquired raw image data to the control chip for processing. The lens assembly includes an optical lens group, an image sensor chip, and a mounting base, all encapsulated within a metal or plastic lens barrel to improve structural stability and anti-interference capabilities.

[0059] In use, first pair the external display device with the camera unit 5 via Bluetooth, and then you can see a real-time image of the inside of the throat on the display screen. During operation, medical staff guide the nozzle tube 4 to the wound by observing the image on the screen, adjusting the nozzle angle and position while observing to achieve precise drug delivery. The entire process requires no cable connection, and the device is flexible and easy to operate.

[0060] The camera unit 5 uses wireless image transmission, freeing the device from the constraints of cables and making operation more convenient and flexible; the built-in battery power supply enables the device to work independently, making it easy to use in different clinical scenarios; Bluetooth real-time transmission ensures the visualization and accuracy of the drug administration process, allowing medical staff to intuitively observe and guide the drug administration operation on the screen, greatly improving the quality and efficiency of drug administration.

[0061] Example 6:

[0062] In some preferred embodiments of this application, the nozzle tube 4 is connected to an external spray bottle 30 via a connecting hose 29.

[0063] In practical implementation, the connecting hose 29 is a slender, flexible tube made of medical-grade silicone, PVC, or PE material, with an inner diameter of approximately 0.5mm to 2mm and a length of approximately 300mm to 800mm, the specific length of which can be selected according to clinical needs. One end of the connecting hose 29 is sealed to the rear end interface of the nozzle tube 4. The connection method can be a plug-in connection, threaded connection, or Luer connector connection, ensuring a secure and leak-proof connection. The connecting hose 29 extends from the rear end of the operating hole 3 of the tongue depressor 1, along the outside of the tongue depressor 1 to the external spray bottle 30. The outer wall of the connecting hose 29 can be reinforced with a braided layer or made of a material with higher hardness to prevent tube collapse and blockage at bends.

[0064] The external spray bottle 30 is a press-type spray bottle, serving as a device for storing and pressurizing the sprayed medication. The external spray bottle 30 consists of two parts: a bottle body and a pump head. The bottle body stores the medication, with a capacity ranging from approximately 10ml to 100ml, allowing for selection of different sizes as needed. The bottle body is made of transparent or semi-transparent medical plastic, with volume markings on the bottle wall for easy observation of the remaining medication. The pump head is located at the bottle opening and internally includes components such as a piston rod 13, piston 13, spring 21, inlet valve, and outlet valve. When the pump head is pressed, the medication in the pump chamber, under pressure, enters the connecting hose 29 through the outlet valve and is finally sprayed out from the nozzle 4, forming a mist. When the pump head is released, spring 21 pushes piston 13 back to its original position, creating a negative pressure in the pump chamber. The medication in the bottle is then drawn into the pump chamber through the inlet valve, completing one suction process and preparing for the next spray. Each press dispenses approximately 0.05ml to 0.3ml of medication, which can be controlled through the pump head design to ensure accurate and controllable dosage each time.

[0065] The external spray bottle 30 can also be equipped with a dedicated clamping strap or finger ring to easily fix the spray bottle on a finger for one-handed operation. For example, the spray bottle can be placed on the middle or ring finger, the index finger of the same hand can be used to press the pump head, and the other hand can hold the tongue depressor 1 for positioning and adjustment, with both hands performing their respective functions and working together.

[0066] The split-type external drug delivery design means that the drug storage capacity is not limited by the size of the tongue depressor 1, which can meet the needs of large-area or multiple administrations; the independent operation of the spray bottle makes it easy for medical staff to flexibly control the timing and amount of drug administration according to the wound condition; the flexible design of the connecting hose 29 allows the relative position between the spray bottle and the tongue depressor 1 to be freely adjusted, and the flexibility of drug administration will not be affected by the pulling of the tubing.

[0067] Example 7:

[0068] In some preferred embodiments of this application, a notch 31 is provided on the lower side of the bite block 2.

[0069] In practical implementation, notch 31 is a recessed structure on the lower surface of the occlusal block 2, the shape of which roughly matches the upper surface of the human tongue. The cross-sectional shape of notch 31 can be arc-shaped, elliptical, or parabolic, that is, concave in the middle and gradually rising on both sides, forming a space to accommodate the tongue. The depth of notch 31 is about 3mm to 8mm, the width is about 10mm to 20mm, and the length extends through or partially along the front-back direction of the occlusal block 2. The specific dimensions are designed based on the statistical values ​​of tongue width in most people, so as to provide sufficient space for the tongue and also to limit and compress the tongue.

[0070] The position of the bite block 2 on the tongue depressor 1 can be adjusted back and forth according to the size of the patient's mouth and the degree of mouth opening. When adjusting, simply hold the bite block 2 and slide it back and forth along the tongue depressor 1. After adjustment, the friction between the bite block 2 and the tongue depressor 1 is sufficient to maintain the position, or an additional locking mechanism such as a set screw can be used for fixation.

[0071] The notch 31 on the lower side of the occlusal block 2 is designed to conform to the anatomical shape of the human tongue, which not only ensures that the tongue is effectively fixed to expose the pharyngeal field of vision, but also significantly improves the patient's comfort and reduces nausea, agitation and other reactions caused by pressure discomfort, which is conducive to medical staff to complete the drug administration operation smoothly and successfully.

[0072] Although the invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A postoperative care device for uniformly spraying throat medication, characterized in that, The tongue depressor (1) is provided with a bite block (2) movably fitted on the outer wall of the tongue depressor (1). The tongue depressor (1) is provided with an operation hole (3) that passes through both ends. A nozzle tube (4) is provided at the front end of the operation hole (3). A camera unit (5) is provided on one side of the nozzle tube (4). The middle part of the nozzle tube (4) is rotatably arranged along the horizontal axis via a rotating shaft (6). An adjusting airbag (7) and an elastic support plate (8) are respectively provided on the front and rear sides of the rotating shaft (6). An adjusting component for controlling the adjusting airbag (7) is provided at the rear end of the tongue depressor (1).

2. The postoperative care device for uniformly spraying throat medication according to claim 1, characterized in that: The adjustment assembly includes an adjustment column (9), which is installed on the outer wall of the rear end of the tongue depressor (1). An air chamber (10) is provided inside the adjustment column (9). A threaded hole (11) communicating with the air chamber (10) is provided at one end of the adjustment column (9) away from the tongue depressor (1). A screw (12) is threadedly connected inside the threaded hole (11). A piston (13) is connected to one end of the screw (12) placed inside the air chamber (10), and a knob plate (14) is connected to the other end outside the adjustment column (9). The air chamber (10) is connected to the adjustment air bag (7) through an air supply pipe (15).

3. The postoperative care device for uniformly spraying throat medication according to claim 2, characterized in that: The outer wall of the adjusting column (9) is provided with an air supply hole (16) that communicates with the air chamber (10), and the air supply hole (16) is sealed by a sealing plug (17).

4. The postoperative care device for uniformly spraying throat medication according to claim 1, characterized in that: An installation seat (18) is slidably installed in the operating hole (3). An installation groove (19) is provided on the installation seat (18). The nozzle tube (4) is installed in the installation groove (19). The rotating shaft (6) is rotatably connected to the groove walls on the left and right sides of the installation groove (19). A baffle (20) is provided on the rear side of the installation seat (18) in the operating hole (3). The baffle (20) is connected to the installation seat (18) by a spring (21). A slot (22) communicating with the operating hole (3) is provided on the upper side of the rear end of the tongue depressor (1). A slider (23) is slidably disposed in the slot (22). The upper end of the slider (23) is connected to a push plate (24) on the upper side of the tongue depressor (1). The lower end of the slider (23) is connected to the mounting base (18) in the operation hole (3) by a pull rope (25). The camera unit (5) includes a lens and an illumination source disposed at the front end, as well as a glass plate (26) for protecting the lens. A scraper (27) is slidably attached to the glass plate (26). The upper and lower ends of the scraper (27) are connected to the front end of the tongue depressor (1) by an elastic strip (28).

5. The postoperative care device for uniformly spraying throat medication according to claim 4, characterized in that: The camera unit (5) is equipped with an electrically connected battery unit, a control chip and a Bluetooth unit, and the lens is electrically connected to the control chip.

6. The postoperative care device for uniformly spraying throat medication according to claim 1, characterized in that: The bite block (2) has a notch (31) on its lower side.

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