A nasopharyngeal tumor radiotherapy flushing device

By designing adjustment and anti-backflow components for the nasopharyngeal tumor radiotherapy irrigation device, the problems of limited irrigation range and drug backflow in traditional devices have been solved, achieving comprehensive cleaning of the nasal cavity and effective utilization of the drug.

CN224540583UActive Publication Date: 2026-07-24THE FIRST AFFILIATED HOSPITAL OF GUANGXI MEDICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE FIRST AFFILIATED HOSPITAL OF GUANGXI MEDICAL UNIVERSITY
Filing Date
2025-04-30
Publication Date
2026-07-24

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Abstract

The utility model provides a nasopharyngeal tumor radiotherapy flushing device belongs to medical instrument technical field. Including liquid storage bottle, the two sides of liquid storage bottle are equipped with the holding area, the bottom fixed connection of liquid storage bottle has the connecting pipe, the top of liquid storage bottle is connected with the flushing pipe threadedly, adjusting assembly, adjusting assembly is used for changing the area of liquid medicine flushing, adjusting assembly is connected with the flushing pipe, prevent backflow assembly, prevent backflow assembly is used for preventing the water backflow after flushing, prevent backflow assembly is connected with liquid storage bottle, can change the flushing area through setting adjusting assembly, utilize the initial state of shower nozzle to carry out the flushing in the inside of nasal cavity, through the rotation sealing sleeve, the shower nozzle extends upward, and the spout opens, realizes the overall flushing to the four around of nasal cavity, ensures that there is no flushing dead angle. When encountering blood scab and other difficult cleaning material, still can pass through the reverse rotation sealing sleeve, enhances the water pressure of shower nozzle port, promotes the cleaning effect.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a nasopharyngeal tumor radiotherapy irrigation device. Background Technology

[0002] Radiotherapy is a common and important treatment for nasopharyngeal carcinoma. However, while killing tumor cells, radiotherapy also produces certain side effects on surrounding normal tissues. In particular, the nasopharyngeal mucosa often experiences congestion, edema, and increased secretions after radiotherapy, requiring nasal irrigation. Traditional irrigation methods, while allowing for adjustable intensity, have a unidirectional water flow, resulting in limited cleaning and difficulty in thoroughly removing residual contaminants from the nasal cavity walls. Therefore, this application provides a nasopharyngeal carcinoma radiotherapy irrigation device to meet this need. Utility Model Content

[0003] The technical problem this invention aims to solve is to provide a nasopharyngeal tumor radiotherapy irrigation device that not only helps irrigate the nasal cavity but is also easy to handle and operate, thus facilitating the smooth conduct of radiotherapy for patients. In addition, the irrigation area can be changed through adjustable components, making the irrigation more comprehensive. This allows for free adjustment of the irrigation range and intensity, resulting in better cleaning effects. Furthermore, it prevents water from flowing back into the bottle after cleaning, avoiding contamination of unused medication and unnecessary waste. The above device can solve the problem of limited irrigation range.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A nasopharyngeal tumor radiotherapy irrigation device includes a reservoir bottle with gripping areas on both sides, a connecting tube fixedly connected to the bottom of the reservoir bottle, and an irrigation tube threadedly connected to the top of the reservoir bottle; an adjustment component for changing the irrigation area, the adjustment component being connected to the irrigation tube; and an anti-backflow component for preventing backflow of irrigation water, the anti-backflow component being connected to the reservoir bottle.

[0006] Optionally, the adjusting assembly includes a sealing sleeve rotatably connected to the end of the flushing tube away from the storage bottle, a threaded groove being provided on the inner side of the sealing sleeve, a nozzle being slidably connected to the inner side of the flushing tube, a nozzle opening being provided on the outer side of the nozzle, a limiting groove being provided on the side of the flushing tube near the nozzle, and a slider being fixedly connected to the side of the nozzle near the nozzle opening.

[0007] Optionally, the anti-backflow assembly includes a fixing frame fixedly connected to the inside of the liquid storage bottle, a piston rod slidably connected at the center of the inner side of the fixing frame, and a spring fixedly connected between the fixing frame and the piston rod.

[0008] Optionally, the number of gripping areas is two sets, and they are symmetrically distributed on both sides of the liquid storage bottle, and the outline of the gripping areas is arc-shaped.

[0009] Optionally, the bottom profile of the flushing tube is tapered, and the top tubular profile of the flushing tube is L-shaped.

[0010] Optionally, the top profile of the nozzle is tapered, and the bottom shape of the nozzle matches the inner profile of the flushing pipe.

[0011] Optionally, the inner contour of the sealing sleeve matches the diameter of the flushing pipe, and a spiral groove is provided at the bottom of the sealing sleeve.

[0012] Optionally, the overall outline of the limiting groove is "Z" shaped, and both the limiting groove and the threaded groove are slidably connected to the slider.

[0013] Optionally, the number of nozzles is multiple, and they are circumferentially distributed on the outside of the nozzle head.

[0014] Optionally, the piston rod has an overall "T" shape, and the end of the piston rod located inside the flushing pipe matches the outline of the bottom opening of the flushing pipe.

[0015] Compared with the prior art, this utility model has at least the following advantages:

[0016] In the above solution, the rinsing area can be changed by setting an adjustment component. The initial state of the nozzle allows for rinsing of the inside of the nasal cavity. By rotating the sealing sleeve, the nozzle extends upwards, opening the nozzle outlet to achieve a comprehensive rinse of the entire nasal cavity, ensuring no blind spots. When encountering stubborn substances such as blood clots, the sealing sleeve can be rotated in the opposite direction to increase the water pressure at the nozzle port, improving the cleaning effect.

[0017] By incorporating an anti-backflow component, the backflow of rinsing water into the storage bottle can be effectively prevented, thus preventing contamination of unused medication, avoiding medication waste, reducing the risk of infection caused by medication contamination, and ensuring the health and safety of patients.

[0018] The reservoir, made of silicone with grip areas on both sides, is not only flexible for easy squeezing by medical staff, but also ergonomically designed to effectively reduce hand fatigue during prolonged use. The L-shaped design and tapered bottom of the irrigation tube allow medical staff to accurately aim it at the nasal cavity, making the operation easy and convenient. Attached Figure Description

[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0020] Figure 1 A schematic diagram of the nasopharyngeal tumor radiotherapy irrigation device viewed from below.

[0021] Figure 2 A schematic diagram of the front structure of a nasopharyngeal tumor radiotherapy irrigation device;

[0022] Figure 3 A schematic cross-sectional view of a nasopharyngeal tumor radiotherapy irrigation device.

[0023] Figure 4 A schematic diagram of the adjustment component of a nasopharyngeal carcinoma radiotherapy irrigation device;

[0024] Figure 5 A schematic diagram of a partial structure of a nasopharyngeal tumor radiotherapy irrigation device;

[0025] Figure 6 A schematic diagram of the adjustment component of a nasopharyngeal carcinoma radiotherapy irrigation device.

[0026] Figure 7 This is a schematic cross-sectional view of the adjustment component of the irrigation device for nasopharyngeal tumor radiotherapy.

[0027] Figure label:

[0028] 1. Liquid storage bottle; 2. Grip area; 3. Connecting tube; 4. Flushing tube; 5. Adjustment assembly; 501. Sealing sleeve; 502. Nozzle; 503. Threaded groove; 504. Limiting groove; 505. Spray nozzle; 506. Slider; 6. Anti-backflow assembly; 601. Fixing bracket; 602. Piston rod; 603. Spring.

[0029] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiment of this utility. However, this is only for illustrative purposes and is not intended to limit this utility to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0030] The following is a detailed description of a nasopharyngeal tumor radiotherapy irrigation device provided by this utility model, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0031] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0032] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0033] It is understood that the meanings of “on”, “above”, and “above” in utility models should be interpreted in the broadest sense, such that “on” not only means “directly on” something, but also includes something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes something “above” something without an intervening feature or layer.

[0034] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0035] like Figure 1 and Figure 3As shown in the embodiment, this utility model provides a nasopharyngeal tumor radiotherapy irrigation device, including a reservoir bottle 1, wherein the reservoir bottle 1 is made of silicone material, which is elastic and easily deformed by compression. Holding areas 2 are provided on both sides of the reservoir bottle 1. A connecting tube 3 is fixedly connected to the bottom of the reservoir bottle 1, and an irrigation tube 4 is threadedly connected to the top of the reservoir bottle 1; an adjusting component 5, used to change the area of ​​drug solution irrigation, and the adjusting component 5 is connected to the irrigation tube 4; an anti-backflow component 6, used to prevent water from flowing back after irrigation, and the anti-backflow component 6 is connected to the reservoir bottle 1. There are two sets of holding areas 2, symmetrically distributed on both sides of the reservoir bottle 1. The device has an arc-shaped outline, making it easy for medical staff to hold and press according to the outline area. The bottom outline of the irrigation tube 4 is conical, and the top tubular outline of the irrigation tube 4 is "L"-shaped, making it easy for medical staff to aim at the nasal cavity for cleaning. The nasopharyngeal tumor radiotherapy irrigation device provided in this application can not only help to irrigate the inside of the nasal cavity, but is also easy to hold and operate, thus facilitating the smooth progress of radiotherapy for patients. In addition, the irrigation area can be changed by adjusting the component 5 to make the irrigation more comprehensive, thereby realizing free adjustment of the irrigation range and intensity, making the cleaning effect better. Moreover, after cleaning, it can prevent water from flowing back into the bottle, avoiding contamination of unused medicine and causing unnecessary waste.

[0036] like Figures 1 to 3 As shown, the anti-backflow assembly 6 includes a fixing frame 601 fixedly connected to the inner side of the storage bottle 1. A piston rod 602 is slidably connected to the center of the inner side of the fixing frame 601. A spring 603 is fixedly connected between the fixing frame 601 and the piston rod 602. The piston rod 602 has an overall "T" shape, and the nozzle 502 is located at one end inside the irrigation tube 4, which matches the bottom opening of the irrigation tube 4. When rinsing the patient's nasal cavity, it is first connected to the infusion tube through the connecting tube 3 to inject irrigation solution into the storage bottle 1. Medical staff hold the bottle in the grip area 2 and spray the solution. The tip of the irrigation tube 4 extends into the patient's nasal cavity. Pressing the gripping area 2 generates pressure, causing water to flow along the bottom opening of the irrigation tube 4 and push out the piston rod 602. This causes the piston rod 602 to move upward along the inside of the fixing frame 601, preventing it from closing the bottom opening of the irrigation tube 4. This allows the medicine to enter the patient's nasal cavity through the top channel of the irrigation tube 4 for cleaning. After cleaning, the piston rod 602 loses the force of the water flow and is reset by the downward elastic force of the spring 603, thus closing the bottom opening of the irrigation tube 4 again and preventing the water from flowing back and contaminating the medicine in the bottle.

[0037] like Figures 4 to 7As shown, the adjusting assembly 5 includes a sealing sleeve 501 rotatably connected to the end of the flushing tube 4 away from the storage bottle 1. A threaded groove 503 is provided on the inner side of the sealing sleeve 501. A nozzle 502 is slidably connected to the inner side of the flushing tube 4, and a nozzle 505 is provided on the outer side of the nozzle 502. A limiting groove 504 is provided on the side of the flushing tube 4 near the nozzle 502. A slider 506 is fixedly connected to the side of the nozzle 502 near the nozzle 505. The top profile of the nozzle 502 is conical, and the bottom shape of the nozzle 502 matches the inner profile of the flushing tube 4. The inner profile of the sealing sleeve 501 matches the diameter of the flushing tube 4, and a spiral groove is provided at the bottom of the sealing sleeve 501. The limiting groove 504 has a "Z" shape overall, and both the limiting groove 504 and the threaded groove 503 are slidably connected to the slider 506. Multiple sets of nozzles 505 are distributed circumferentially on the outer side of the nozzle 502. When flushing the patient's nasal cavity, pressure is applied... The medication is used to rinse the inside of the patient's nasal cavity through the cone-shaped nozzle 502. However, the area around the nozzle 502 is difficult to clean. At this point, the bottom of the sealing sleeve 501 is pinched and rotated along the spiral groove. As the sealing sleeve 501 rotates, it drives the slider 506 upwards along the threaded groove 503. The limiting groove 504 limits the slider 506, ensuring it does not rotate while moving upwards, thus avoiding interference with the patient's nasal cavity after radiotherapy. The upward movement of the slider 506 also ensures that the nozzle 502 extends upwards. When the nozzle 502 extends to a certain point, the nozzle 505 is no longer closed to the inside of the rinsing tube 4, allowing the medication to rinse the area around the patient's nasal cavity through the nozzle 505, ensuring a more comprehensive and thorough rinse. When encountering blood clots that are difficult to rinse, the sealing sleeve 501 can be rotated in the opposite direction to close the nozzle 505 again, increasing the water pressure at the nozzle 502 port and improving the rinsing effect.

[0038] The working principle of the technical solution provided by this utility model is as follows:

[0039] In use, first connect the tube 3 to the infusion tubing, then inject the rinsing solution into the reservoir bottle 1. Medical personnel hold the bottle in the grip area 2, inserting the tip of the rinsing tube 4 into the patient's nasal cavity. Pressing the grip area 2 generates pressure, causing water to flow along the bottom opening of the rinsing tube 4, pushing out the piston rod 602. This causes the piston rod 602 to move upwards along the inside of the fixing bracket 601, preventing the bottom opening of the rinsing tube 4 from closing. This allows the rinsing solution to enter the patient's nasal cavity through the tubular tip of the rinsing tube 4 for rinsing. After rinsing, the piston rod 602 loses the force of the water flow and is reset by the downward force of the spring 603, re-closing the bottom opening of the rinsing tube 4 to prevent backflow and contamination of the rinsing solution. When rinsing the patient's nasal cavity, under pressure, the rinsing solution flows through the cone-shaped nozzle 502 towards the inside of the patient's nasal cavity. Forward rinsing is used, but the area around the nozzle 502 is difficult to clean. At this time, the bottom of the sealing sleeve 501 is pinched and rotated in the direction of the spiral groove. When the sealing sleeve 501 rotates, it drives the slider 506 to move upward along the threaded groove 503. At this time, the slider 506 is limited by the limiting groove 504 to ensure that the slider 506 does not rotate while moving upward, so as not to affect the nasal cavity of the patient after radiotherapy. When the slider 506 moves upward, it also ensures that the nozzle 502 extends upward. When the nozzle 502 extends to a certain extent, the nozzle 505 is no longer closed with the inside of the rinsing tube 4, allowing the medicine to rinse the area around the patient's nasal cavity through the nozzle 505, ensuring a more comprehensive and thorough rinsing. When encountering blood clots that are difficult to rinse, the sealing sleeve 501 can be rotated in the opposite direction to close the nozzle 505 again, increasing the water pressure at the nozzle 502 port and improving the rinsing effect.

[0040] This utility model encompasses any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model without these details. Furthermore, to avoid unnecessary confusion regarding the nature of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0041] The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A nasopharyngeal tumor radiotherapy irrigation device, comprising a reservoir bottle, characterized in that, The liquid storage bottle has gripping areas on both sides, a connecting tube is fixedly connected to the bottom of the liquid storage bottle, and a flushing tube is threadedly connected to the top of the liquid storage bottle. An adjustment component, which is used to change the area of ​​drug rinsing, is connected to the rinsing pipe; An anti-backflow assembly is used to prevent water from flowing back after rinsing, and the anti-backflow assembly is connected to the storage bottle.

2. The nasopharyngeal tumor radiotherapy irrigation device according to claim 1, characterized in that, The adjustment assembly includes a sealing sleeve rotatably connected to the end of the flushing tube away from the storage bottle. The inner side of the sealing sleeve has a threaded groove. The inner side of the flushing tube is slidably connected to a nozzle. The outer side of the nozzle has a spray nozzle. The flushing tube near the nozzle has a limit groove. The nozzle near the spray nozzle has a slider fixedly connected to it.

3. The nasopharyngeal tumor radiotherapy irrigation device according to claim 1, characterized in that, The anti-backflow assembly includes a fixed bracket fixedly connected to the inside of the liquid storage bottle, a piston rod slidably connected at the center of the inner side of the fixed bracket, and a spring fixedly connected between the fixed bracket and the piston rod.

4. The nasopharyngeal tumor radiotherapy irrigation device according to claim 1, characterized in that, The number of gripping areas is two sets, and they are symmetrically distributed on both sides of the liquid storage bottle. The outline of the gripping areas is arc-shaped.

5. The nasopharyngeal tumor radiotherapy irrigation device according to claim 1, characterized in that, The bottom profile of the flushing tube is conical, and the top tubular profile of the flushing tube is "L" shaped.

6. The nasopharyngeal tumor radiotherapy irrigation device according to claim 2, characterized in that, The top profile of the nozzle is conical, and the bottom shape of the nozzle matches the inner profile of the flushing pipe.

7. The nasopharyngeal tumor radiotherapy irrigation device according to claim 2, characterized in that, The inner contour of the sealing sleeve matches the diameter of the flushing pipe, and a spiral groove is provided at the bottom of the sealing sleeve.

8. The nasopharyngeal tumor radiotherapy irrigation device according to claim 2, characterized in that, The overall outline of the limiting groove is "Z" shaped, and both the limiting groove and the threaded groove are slidably connected to the slider.

9. The nasopharyngeal tumor radiotherapy irrigation device according to claim 2, characterized in that, The number of nozzles is multiple, and the nozzles are circumferentially distributed on the outer side of the nozzle.

10. The nasopharyngeal tumor radiotherapy irrigation device according to claim 3, characterized in that, The piston rod has an overall "T" shape, and the end of the piston rod located inside the flushing tube matches the outline of the bottom opening of the flushing tube.