Sprayer for surface anesthesia
By designing a sprayer with a positioning plate and a bending mechanism, the positioning and control problems of existing sprayers during pharyngeal anesthesia have been solved, enabling precise adjustment of the spraying position and optimization of the drug dosage, thereby improving the safety and effectiveness of surface anesthesia.
Patent Information
- Application Number
- CN202422220029.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-09-11
AI Technical Summary
Existing nebulizers cannot accurately target the medication to the effective site when performing topical anesthesia in the throat area, posing a risk of overdose and poisoning. They are also inconvenient to use, difficult to control the amount of medication sprayed, and prone to spraying deviations due to patient movement.
A sprayer comprising an mouth opener, a positioning plate, a guide tube, an outer tube, and a bending mechanism was designed. The positioning plate and positioning knob fix the patient's mouth, the bending mechanism adjusts the nozzle position, and the injection tube and piston rod control the amount of medication sprayed, thus achieving precise spraying.
It enables precise adjustment of the spraying position and effective control of the drug dosage, avoiding spraying position deviations caused by patient movement, and improving the reliability and safety of the anesthetic effect.
Smart Images
Figure CN223641129U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument equipment technical field especially is surface anesthesia is with sprayer. BACKGROUND
[0002] At present, surface anesthesia of throat area is often needed in clinical medical work, local anesthetic is used on oral mucosa and throat area mucosa to produce anesthetic effect, and most of the traditional operation mode uses ordinary sprayer, cannot determine that all the used drugs act on effective parts, clinical anesthetic effect is poor, and there is the risk of drug overdose poisoning at the same time, the use method is complex, is not easy to grasp, when the throat position is sprayed with anesthetic, due to the limited oral cavity space of patient, the hose end cannot be effectively limited when using hose to spray drug, and spraying can easily cause the drug not to be placed in the position needing anesthesia, but using rigid pipeline can easily scratch the inner wall of patient's oral cavity, and part of the position cannot use rigid pipeline to reach directly, the scope of application is small, and the spraying position can be wrong due to the movement of patient when adjusting the anesthetic position, and the amount of anesthetic used by different patients is different, ordinary sprayer cannot accurately control the amount of drug sprayed, and it is easy to cause the problems of insufficient drug or drug overdose, therefore, a surface anesthesia sprayer capable of adjusting the spraying position and controlling the amount of sprayed drug is needed. CONTENT OF THE UTILITY MODEL
[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a surface anesthesia sprayer, the utility model novel structure, clever idea, simple and convenient operation, effectively reaches the purpose that the spraying position is adjusted conveniently, optimizes the function of controlling the amount of drug sprayed, avoids the problem that the spraying position is deviated due to the movement of patient.
[0004] In order to achieve the above object, the utility model provides the following technical scheme: the utility model discloses an opener, the middle part of the opener is equipped with a detachable positioning plate, a guide pipe is slidably connected to the middle part of the positioning plate, an outer sleeve pipe is sleeved in the guide pipe, a bending mechanism is arranged in the outer sleeve pipe, one end of the outer sleeve pipe is fixedly connected with an adjusting handle, and the other end of the outer sleeve pipe is fixedly connected with a spray head.
[0005] Preferably, the bending mechanism includes a top tube, an end tube, a middle tube, and pull ropes. The top tube, end tube, and middle tube are all through-tube structures. There are multiple middle tubes, which are sequentially connected end-to-end. The top tube and end tube are rotatably connected to their corresponding middle tubes. There are two pull ropes, both of which pass through the end tube and the middle tube. The ends of the two pull ropes are fixedly connected to the top tube. An adjustment wrench is rotatably connected to the middle of the adjustment handle. A flip plate is fixedly connected to the lower end of the adjustment wrench. The flip plate has symmetrical sliding grooves in the middle. The ends of the two pull ropes are placed in the corresponding sliding grooves and slide along the corresponding sliding grooves.
[0006] Preferably, an injection tube is provided inside the adjustment handle, a piston rod is slidably connected inside the injection tube, a push rod is rotatably connected to the end of the piston rod, a drive trigger is rotatably connected to the lower end of the adjustment handle, the other end of the push rod is rotatably connected to the drive trigger, and a return spring is fitted on the outside of the piston rod, with one end of the return spring fixedly connected to the piston rod.
[0007] Preferably, a connecting tube is provided in the middle of the adjusting handle, one end of the connecting tube is connected to the injection tube, the other end of the connecting tube is connected to the outer packaging tube, and a first one-way valve is provided in the middle of the connecting tube.
[0008] Preferably, the rear end of the adjusting handle is connected to a drug inlet tube, the end of the drug inlet tube is connected to the injection tube, and a second one-way valve is provided in the middle of the drug inlet tube.
[0009] Preferably, a positioning knob is rotatably connected to the middle of the positioning plate, and the lower end of the positioning knob is placed on the outer wall of the guide tube.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] 1. This device has a guide tube, an outer tube, a bending mechanism, and an adjustment handle, which effectively achieves the purpose of facilitating the adjustment of the spray position. When in use, hold the adjustment handle and change the bending direction of the outer tube through the bending mechanism. By rotating the adjustment handle, the outer tube rotates along the axis of the guide tube. Through this process, the direction and position of the nozzle are adjusted. At the same time, by pushing or pulling the adjustment handle towards the positioning plate, the front and back position of the nozzle can be changed, so that the nozzle can be adjusted to any position in the patient's throat.
[0012] 2. This device has an injection tube, piston rod, push rod and drive trigger, which effectively optimizes the function of controlling the amount of medicine sprayed. When in use, the drive trigger is pulled by the finger, which causes the drive trigger to flip backward. At the same time, the push rod causes the piston rod to slide backward, squeezing the medicine in the injection tube, so that the medicine enters the outer tube and is sprayed out from the nozzle. The amount of medicine sprayed is controlled by the rotation angle of the drive trigger.
[0013] 3. This device has an mouth opener, a positioning plate, and a positioning knob, which effectively avoids the problem of spray position deviation caused by patient movement. When using it, place the mouth opener on the patient's mouth and use the mouth opener to open the patient's lips. Then, snap the positioning plate on the outside of the mouth opener, insert the guide tube into the positioning plate, and rotate the positioning knob to lock the guide tube. At this time, since the mouth opener is fixed in position relative to the patient, the nozzle position will not move relative to the fixed position when the patient makes small movements. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0015] Figure 1 This is a schematic diagram of the usage state of this utility model.
[0016] Figure 2 This is a schematic diagram of the internal structure of the outer casing in this utility model.
[0017] Figure 3 This is a schematic diagram of the bending mechanism in this utility model.
[0018] Figure 4 This is a schematic diagram of the positioning structure of the guide tube in this utility model.
[0019] Figure 5 This is a schematic diagram of the internal structure of the adjustment handle in this utility model.
[0020] Figure 6 This is a schematic diagram of the moving structure of the piston rod in this utility model.
[0021] Figure 7 This is a schematic diagram showing the position of the nozzle in this utility model.
[0022] In the diagram: 1. Opening device; 2. Positioning plate; 3. Guide tube; 4. Outer tube; 5. Bending mechanism; 6. Adjusting handle; 7. Nozzle; 8. Injection tube; 9. Piston rod; 10. Push rod; 11. Drive trigger; 12. Return spring; 13. Connecting tube; 14. First one-way valve; 15. Injection tube; 16. Second one-way valve; 17. Positioning knob; 50. Top tube; 51. End tube; 52. Middle tube; 53. Pull rope; 54. Adjusting wrench; 55. Flip plate; 56. Sliding groove. Detailed Implementation
[0023] The following is in conjunction with the appendix Figures 1-7 The specific embodiments of this utility model will be described in further detail.
[0024] Example 1, byFigure 1 and Figure 7 The device includes an opening device 1 made of elastic plastic. To achieve the purpose of spraying medication, the opening device 1 has a detachable positioning plate 2 in the middle. Notches are provided on both the left and right sides of the positioning plate 2, allowing it to be snapped onto the outside of the opening device 1. A guide tube 3 is slidably connected to the middle of the positioning plate 2. A tubular notch is provided on the positioning plate 2 corresponding to the position of the guide tube 3. The guide tube 3 is placed within the tubular notch and can slide back and forth along the notch. The guide tube 3 is made of rigid material, and an outer casing tube 4 is fitted inside the guide tube 3. The outer casing tube 4 is made of flexible material and can... The outer tube 4 can be bent in any direction. The portion of the outer tube 4 placed inside the guide tube 3 is supported by the inner wall of the guide tube 3 and will not bend. Only the portion extending out of the guide tube 3 can be bent. The outer tube 4 is equipped with a bending mechanism 5, which can bend the end of the outer tube 4. One end of the outer tube 4 is fixedly connected to an adjustment handle 6, and multiple anti-slip pads are fixedly connected to the outside of the adjustment handle 6. The other end of the outer tube 4 is fixedly connected to a nozzle 7. When the medicine is sprayed out through the nozzle 7 at the end of the outer tube 4, the medicine can be made into a mist, which can better allow the medicine to be absorbed by the skin.
[0025] Example 2, based on Example 1, is... Figures 2-6To adjust the spray position, the bending mechanism 5 includes a top tube 50, an end tube 51, a middle tube 52, and pull ropes 53. The top tube 50, end tube 51, and middle tube 52 are all through-tube structures. Multiple middle tubes 52 are provided, and they are sequentially connected end-to-end. The top tube 50 and end tube 51 are rotatably connected to their corresponding middle tubes 52. Each of the top tube 50, end tube 51, and middle tube 52 has a through hole in its middle section, symmetrically arranged on the inner wall of the tubular structure. There are two pull ropes 53, both passing through the end tube 51 and the middle tube 52. The pull ropes 53 pass through the corresponding top tube 50, end tube 51, and middle tube 52 via the through holes. The ends of both pull ropes 53 are fixedly connected to the top tube 50. To adjust the bending direction, the middle section of the adjusting handle 6 rotates. An adjustment wrench 54 is connected, and a flip plate 55 is fixedly connected to the lower end of the adjustment wrench 54. The flip plate 55 has symmetrical sliding grooves 56 in the middle. The ends of the pull ropes 53 are made of rigid material. The ends of the two pull ropes 53 are placed in the corresponding sliding grooves 56 and slide along the corresponding sliding grooves 56 to prevent the pull ropes 53 from slipping out when the adjustment wrench 54 is rotated. In use, the flip plate 55 is rotated by rotating the adjustment wrench 54. At the same time, the sliding groove 56 pulls one side of the pull rope 53 backward and releases the other side of the pull rope 53. At this time, the middle tube 52 will bend to the side of the pulled pull rope 53 due to the influence of the pull rope 53, and the outer tube 4 will bend synchronously. During this process, the outer tube 4 is rotated along the axis of the guide tube 3 by rotating the adjustment handle 6. The direction and position of the nozzle 7 are adjusted by this process. At the same time, the front and back positions of the nozzle 7 are changed by pushing or pulling the adjustment handle 6 towards the positioning plate 2.
[0026] Example 3, based on Example 1, is... Figure 5 and Figure 6 To adjust the spray volume, an injection tube 8 is provided inside the adjustment handle 6. A piston rod 9 is slidably connected inside the injection tube 8, and a piston is fixedly connected to the end of the piston rod 9. The outer wall of the piston slides and seals against the inside of the injection tube 8. A push rod 10 is rotatably connected to the end of the piston rod 9. For ease of operation, a drive trigger 11 is rotatably connected to the lower end of the adjustment handle 6. The other end of the push rod 10 is rotatably connected to the drive trigger 11. In use, the drive trigger 11 is pulled by finger, causing it to flip backward. At the same time, the push rod 10 causes the piston rod 9 to slide backward, squeezing the liquid medicine in the injection tube 8, allowing the liquid medicine to enter the outer tube 4 and spray out from the nozzle 7. The spray volume of the medicine is controlled by the rotation angle of the drive trigger 11. A return spring 12 is fitted on the outside of the piston rod 9. One end of the return spring 12 is fixedly connected to the piston rod 9. After the medicine is sprayed, the drive trigger 11 is released, and the return spring 12 returns the piston rod 9 to its original position. During this process, the liquid medicine is replenished into the injection tube 8 for the next use.
[0027] Example 4, based on Example 3, by Figure 5 and Figure 6 To achieve better results, a connecting tube 13 is provided in the middle of the adjusting handle 6. One end of the connecting tube 13 is connected to the injection tube 8. The connection position of the connecting tube 13 is located at the rear end of the injection tube 8 to prevent the connecting tube 13 from communicating with the outside after the piston rod 9 moves. The other end of the connecting tube 13 is connected to the outer casing tube 4. A first one-way valve 14 is provided in the middle of the connecting tube 13. The first one-way valve 14 ensures that the medicine can only enter the connecting tube 13 through the injection tube 8 and will not allow the medicine in the connecting tube 13 to flow back into the injection tube 8.
[0028] Example 5, based on Example 3, by Figure 5 and Figure 6 To achieve a better purpose, the rear end of the adjustment handle 6 is connected to a drug inlet tube 15. The end of the drug inlet tube 15 is connected to the injection tube 8, and the rear end of the drug inlet tube 15 is connected to the liquid medicine through a flexible tube, so that the liquid medicine can be drawn into the injection tube 8. The middle part of the drug inlet tube 15 is provided with a second one-way valve 16. The second one-way valve 16 ensures that the liquid medicine can only enter the injection tube 8 through the outside, and will not allow the liquid medicine in the injection tube 8 to be discharged through the drug inlet tube 15.
[0029] Example 6, based on Example 1, by Figure 1 and Figure 4 To facilitate positioning, a positioning knob 17 is rotatably connected to the middle of the positioning plate 2. The lower end of the positioning knob 17 is placed on the outer wall of the guide tube 3. The lower end of the positioning knob 17 is an inclined surface. By rotating the positioning knob 17, the position of the guide tube 3 relative to the positioning plate 2 is fixed.
[0030] In use, the mouth opener 1 is placed at the patient's mouth to pry open the patient's lips. The positioning plate 2 is then attached to the outside of the mouth opener 1. The guide tube 3 is then inserted into the positioning plate 2, and the insertion length is adjusted. After reaching the appropriate length, the positioning knob 17 is rotated, causing its lower end to press against the outer wall of the guide tube 3, thus fixing the guide tube 3 relative to the patient. The medication inlet tube 15 is then connected to the medication solution. Air in the injection tube 8 is expelled by repeatedly pulling the drive trigger 11. Once a small amount of medication is sprayed from the nozzle 7, the trigger is stopped. The outer tube 4 is then inserted into the guide tube 3, and one hand holds the adjustment handle 6. The adjustment handle 6 is pushed back and forth to adjust the position of the nozzle 7. The flip plate 55 is rotated by turning the adjustment wrench 54, and one side is pulled... Pull rope 53 and loosen the other side of rope 53. At this time, the middle tube 52 will bend to the side of the pulled rope 53 due to the influence of the pulled rope 53, and the outer tube 4 will bend synchronously. During this process, the outer tube 4 will rotate along the axis of the guide tube 3 by rotating the adjustment handle 6, thereby adjusting the direction and position of the nozzle 7. By observing with an endoscope or the naked eye, since the mouth opening 1 is fixed relative to the patient, the position of the nozzle 7 will not move relative to the fixed position when the patient makes small movements. After determining the position of the nozzle 7, the driver trigger 11 is pulled by the finger, causing the driver trigger 11 to flip backward. At the same time, the push rod 10 causes the piston rod 9 to slide backward, squeezing the liquid in the injection tube 8, so that the liquid enters the outer tube 4 and is sprayed out from the nozzle 7. The amount of drug sprayed is controlled by the rotation angle of the driver trigger 11. At this time, the spraying of the anesthetic drug is completed.
[0031] This utility model has a novel structure, ingenious design, and simple and convenient operation. Through this design, it effectively achieves the purpose of facilitating the adjustment of the spray position, optimizes the function of controlling the amount of medicine sprayed, and avoids the problem of spray position deviation caused by patient movement.
[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A topical anesthetic sprayer, including an opening device (1), characterized in that: The opening device (1) is provided with a detachable positioning plate (2) in the middle. A guide tube (3) is slidably connected to the middle of the positioning plate (2). An outer tube (4) is fitted inside the guide tube (3). A bending mechanism (5) is provided inside the outer tube (4). An adjustment handle (6) is fixedly connected to one end of the outer tube (4). A nozzle (7) is fixedly connected to the other end of the outer tube (4). The bending mechanism (5) includes a top tube (50), an end tube (51), a middle tube (52), and a pull rope (53). The top tube (50), end tube (51), and middle tube (52) are all through tubular structures. There are multiple middle tubes (52). 2) The ends are connected in sequence by rotating. The top tube (50) and the end tube (51) are both connected to the corresponding middle tube (52). There are two pull ropes (53). Both pull ropes (53) pass through the end tube (51) and the middle tube (52). The ends of the two pull ropes (53) are fixedly connected to the top tube (50). An adjustment wrench (54) is rotatably connected to the middle of the adjustment handle (6). A flip plate (55) is fixedly connected to the lower end of the adjustment wrench (54). A sliding groove (56) is symmetrically opened in the middle of the flip plate (55). The ends of the two pull ropes (53) are placed in the corresponding sliding groove (56) and slide along the corresponding sliding groove (56).
2. The topical anesthetic sprayer according to claim 1, characterized in that: An injection tube (8) is provided inside the adjustment handle (6). A piston rod (9) is slidably connected inside the injection tube (8). A push rod (10) is rotatably connected to the end of the piston rod (9). A drive trigger (11) is rotatably connected to the lower end of the adjustment handle (6). The other end of the push rod (10) is rotatably connected to the drive trigger (11). A return spring (12) is fitted on the outside of the piston rod (9). One end of the return spring (12) is fixedly connected to the piston rod (9).
3. The topical anesthetic sprayer according to claim 2, characterized in that: The middle part of the adjustment handle (6) is provided with a connecting tube (13), one end of the connecting tube (13) is connected to the injection tube (8), and the other end of the connecting tube (13) is connected to the outer tube (4). The middle part of the connecting tube (13) is provided with a first one-way valve (14).
4. The topical anesthetic sprayer according to claim 2, characterized in that: The rear end of the adjustment handle (6) is connected to a drug inlet tube (15), the end of the drug inlet tube (15) is connected to the injection tube (8), and a second one-way valve (16) is provided in the middle of the drug inlet tube (15).
5. The topical anesthetic sprayer according to claim 1, characterized in that: A positioning knob (17) is rotatably connected to the middle of the positioning plate (2), and the lower end of the positioning knob (17) is placed on the outer wall of the guide tube (3).