Cooling, saliva-discharging and ventilating mouth-holding device for oral cavity radiotherapy

Abstract

The invention discloses a cooling, salivary drainage and ventilation oral device for oral radiotherapy, and relates to the technical field of medical instruments. The left side of the main body supporting part is connected with a tongue depressor, the right side of the main body supporting part is connected with an external device through an extension hose with an adapter, the adapter on the left side of the extension hose is clamped with the right end of the main body supporting part through a buckle, and a silica gel cushion is arranged at the joint of the adapter and the main body supporting part; and the adapter on the right side of the extension hose is clamped and fixed with an external device through a buckle. The antibacterial plastic can effectively inhibit bacterium breeding and reduce infection risks, especially in the oral environment, saliva and wet conditions are very suitable for bacterium breeding, and the antibacterial plastic can significantly reduce the potential hazards. Meanwhile, the antibacterial plastic is generally subjected to strict biocompatibility and non-toxicity tests, so that no side effect is generated when the antibacterial plastic is in long-term contact with a human body, and the requirement of environmental protection is met. The safety and cleanliness of the instrument and the use experience of a patient can be obviously improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a cooling and saliva-discharging and ventilation mouthpiece for oral radiotherapy. Background Art

[0002] Tumor radiotherapy is a major means of local treatment of tumors using radiation, including α, β, and γ rays produced by radioisotopes, or particle beams such as x-rays, electron beams, and proton beams produced by accelerators. With the development of imaging technology and computer technology, radiotherapy has developed from two-dimensional to three-dimensional, and dose distribution has evolved from point dose to volume dose, which has improved the accuracy and safety of treatment. Mainstream technologies such as conformal intensity-modulated radiotherapy and volumetric rotation intensity-modulated radiotherapy can irradiate tumors more accurately while protecting normal tissues. In head and neck tumor radiotherapy, patients often use mouthpieces to fix their tongues to ensure consistency of position during treatment, but traditional mouthpieces mostly only have the function of depressing the tongue, which often irritates the patient's oral mucosa, leading to excessive saliva secretion, increasing the risk of airway obstruction and infection. In addition, patients will also experience symptoms such as radiation stomatitis and pain. Traditional mouthpieces may also cause a sense of foreign body pressure, interfere with the patient's normal breathing, cause shortness of breath, chest tightness and other problems, and reduce the patient's tolerance to radiotherapy. Therefore, a reasonable mouthpiece design should have the functions of fixation, cooling, saliva discharge and ventilation, while reducing discomfort and improving the comfort, safety and accuracy of radiotherapy.

[0003] The existing technology mainly has the following defects: a. During head and neck radiotherapy, traditional mouthpieces are often used to fix the patient's tongue and normal tissue as far away from the target area as possible to protect the inner wall of the oral cavity and surrounding organs at risk. However, traditional mouthpieces often block oral breathing, stimulate excessive saliva secretion, and compress oral edema areas to cause pain, causing patients to feel shortness of breath, unable to control swallowing of saliva, and sensitive to pain, which causes patients to frequently adjust their body positions and move constantly, affecting the accuracy of radiotherapy and reducing the treatment effect.

[0004] b. Existing methods cannot effectively relieve patients’ breathing difficulties and chest tightness caused by blockage of the mouthpiece during head and neck radiotherapy.

[0005] c. Existing methods cannot effectively remove saliva secreted from the patient's mouth due to stimulation from the mouthpiece during head and neck radiotherapy.

[0006] d. Existing methods cannot effectively relieve patients’ oral edema and pain caused by inflammatory complications during head and neck radiotherapy.

[0007] In summary, the present invention designs a cooling and saliva-removing ventilating mouthpiece for oral radiotherapy. Summary of the invention

[0008] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a cooling and saliva-removing ventilating mouthpiece for oral radiotherapy, the main component of which is antibacterial plastic, and the main material of the extension hose and the oxygen input hose is PVC. First of all, the use of antibacterial plastic and PVC, two metal-free materials, as the main materials can avoid image artifacts caused by the attenuation and scattering of X-rays by metal during CT scanning, and can also reduce the scattering of X-rays passing through the device during radiotherapy. In addition, antibacterial plastic can effectively inhibit the growth of bacteria and reduce the risk of infection, especially in the oral environment, where saliva and moist conditions are very suitable for bacterial reproduction, and antibacterial plastic can significantly reduce these potential hazards. At the same time, antibacterial plastics usually undergo strict biocompatibility and non-toxicity tests to ensure that no side effects will be produced in long-term contact with the human body and meet environmental protection requirements. It can significantly improve the safety, cleanliness and patient experience of the device.

[0009] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a cooling and saliva-evacuation mouthpiece for oral radiotherapy, comprising a tongue depressor, a main body support part, an extension hose and an external device, the left side of the main body support part is connected to the tongue depressor, the right side of the main body support part is connected to the external device through an extension hose with an adapter, the adapter on the left side of the extension hose is clamped to the right end of the main body support part through a buckle, and a silicone pad is provided at the connection between the adapter and the main body support part, and the adapter on the right side of the extension hose is clamped and fixed to the external device through a buckle.

[0010] Preferably, the main body support part is an intermediate main body arch structure composed of antibacterial plastic material, which is used to prop open the patient's mouth and includes an outer interlayer and a second interlayer. The outer interlayer is composed of a cooling water circulation system and a negative pressure saliva discharge system, and the second interlayer is composed of a ventilation system. A ventilation system is arranged on the inner side of the cooling water circulation system, and a negative pressure saliva discharge system is arranged on the cooling water circulation system; one end of the cooling water circulation system is a cooling water inlet, and the other end is an outlet. The ventilation system includes an internal opening of the second interlayer and an external gas delivery device, and the internal opening of the second interlayer is connected to the external gas delivery device. The negative pressure saliva discharge system includes a closed pipeline in the outer interlayer and an external negative pressure device. The closed pipeline is located on the outside of the outer interlayer and is provided with multiple circular adsorption holes.

[0011] Preferably, the outer ends of the circular adsorption holes are all regular dot-shaped protrusions, and a filter screen is provided at the entrance of the circular adsorption holes.

[0012] Preferably, the external device is equipped with a micro water circulation machine, a micro negative pressure machine, a main control circuit board, a Bluetooth module, a rechargeable battery, a switch, and a charging port. A saliva discharge interface and a gas input interface are provided at the end of the external device. The gas input interface is connected to the gas delivery device through a pipeline, and the saliva discharge interface is externally connected to a saliva collection bag.

[0013] Preferably, the main support structure and the adapter are both made of antibacterial plastic.

[0014] Preferably, the extension hose is a PVC tube.

[0015] Preferably, the cooling water circulation system fits the inner wall of the patient's oral cavity.

[0016] Beneficial effects of the present invention: Compared with traditional mouthpieces, the present invention integrates three functions: cooling, saliva discharge, and ventilation, effectively alleviating the discomfort that traditional mouthpieces bring to patients during radiotherapy. First, through the cooling function, it can reduce oral inflammation, pain, and edema caused by radiotherapy; second, the saliva discharge function can promptly deal with the patient's excessive saliva produced by the mouthpiece stimulation, and prevent breathing and swallowing difficulties caused by saliva accumulation; finally, the ventilation function ensures that the patient breathes smoothly during use, avoiding chest tightness and shortness of breath. These innovations significantly improve the patient's comfort during treatment, reduce changes in body position due to discomfort, and thus improve the accuracy of radiotherapy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments; Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the main body support part of the present invention; Figure 3 for Figure 2 A magnified schematic diagram of part A; Figure 4 Another schematic diagram of the present invention; Figure 5 This is a schematic diagram of the internal pipelines of the main support part of the present invention; Figure 6 It is a schematic diagram of an exploded view of an external device of the present invention; Figure 7 It is a schematic diagram of the tail of the main body support part of the present invention; Figure 8 It is a schematic diagram of the structure of the extension hose of the present invention; Fig. 9 for Figure 8 Left view of; Fig.10 for Figure 8 Right view of . DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] Reference Figure 1-10 The present specific embodiment adopts the following technical scheme: a cooling and saliva-expelling venting mouthpiece for oral radiotherapy, comprising a tongue depressor 1, a main body support part 2, an extension hose 9 and an external device 6. The left side of the main body support part 2 is connected with the tongue depressor 1 for fixing and pressing the patient's tongue. The right side of the main body support part 2 is connected to the external device 6 through an extension hose 9 with an adapter. The adapter on the left side of the extension hose 9 is clamped with the right end of the main body support part 2 through a buckle 8, and a silicone cushion 7 is provided at the connection between the adapter and the main body support part 2, which mainly allows the patient's teeth to bite and plays an anti-slip and fixing role. The adapter on the right side of the extension hose 9 is clamped and fixed with the external device 6 through the buckle 8, which is easy to install and detachable.

[0020] It is worth noting that the main support part 2 is an intermediate main arch structure made of antibacterial plastic material, which is used to open the patient's mouth and includes an outer interlayer and a second interlayer. The outer interlayer is composed of a cooling water circulation system 3 and a negative pressure saliva discharge system 5, and the second interlayer is composed of a ventilation system 4. The ventilation system 4 is arranged on the inner side of the cooling water circulation system 3, and a negative pressure saliva discharge system 5 is arranged on the cooling water circulation system 3; one end of the cooling water circulation system 3 is a cooling water inlet 31, and the other end is an outlet 32. The ventilation system 4 includes an internal opening of the second interlayer and an external gas delivery device, and the internal opening of the second interlayer is connected to the external gas delivery device. The negative pressure saliva discharge system 5 includes a closed pipeline 51 in the outer interlayer and an external negative pressure device. The closed pipeline is located on the outside of the outer interlayer and is provided with multiple circular adsorption holes A.

[0021] The upper and lower sides of the tail of the main support part 2 are respectively provided with a first cooling water inlet female end B1, a first negative pressure adsorption port female end C1, a second negative pressure adsorption port female end D1 and a first cooling water outlet female end E1, and the left end of the extension hose 9 is provided with a first cooling water inlet male end B2, a first negative pressure adsorption port male end C2, a second negative pressure adsorption port male end D2 and a first cooling water outlet male end E2. The first cooling water inlet female end B1 is connected to the first cooling water inlet male end B2, the first negative pressure adsorption port female end C1 is connected to the first negative pressure adsorption port male end C2, the second negative pressure adsorption port female end D1 is connected to the second negative pressure adsorption port male end D2, and the first cooling water outlet female end E1 is connected to the first cooling water outlet male end E2.

[0022] The right end of the extension tube 9 is provided with a second cooling water inlet female end B3, a third negative pressure adsorption port female end C3, a fourth negative pressure adsorption port female end D3 and a second cooling water outlet female end E3, and the left end of the external device 6 is provided with a second cooling water inlet male end B4, a third negative pressure adsorption port male end C4, a fourth negative pressure adsorption port male end D4 and a second cooling water outlet male end E4. The second cooling water inlet female end B3 is connected to the second cooling water inlet male end B4, the third negative pressure adsorption port female end C3 is connected to the third negative pressure adsorption port male end C4, the fourth negative pressure adsorption port female end D3 is connected to the fourth negative pressure adsorption port male end D4, and the second cooling water outlet female end E3 is connected to the second cooling water outlet male end E4.

[0023] It is worth noting that the outer ends of the circular adsorption holes A are all regular dot-shaped protrusions 52, and a filter screen 53 is provided at the entrance of the circular adsorption holes A.

[0024] In addition, the external device 6 is equipped with a micro water circulation machine 61, a micro negative pressure machine 62, a main control circuit board 63, a Bluetooth module 64, a rechargeable battery 65, a switch 66, and a charging port 67. The end of the external device 6 is provided with a saliva discharge interface 11 and a gas input interface 10. The gas input interface 10 is connected to the gas delivery device through a pipeline. One end of the saliva discharge interface 11 is connected to the circular adsorption hole A, and the other end is connected to a saliva collection bag to store the saliva collected by the negative pressure saliva discharge system. The gas input interface 10 can be connected to the pipeline for gas delivery according to the different needs of the patient (air or oxygen).

[0025] The outermost interlayer of the main structure of this specific embodiment is composed of a cooling water circulation system and a negative pressure adsorption system, wherein one end of the outermost interlayer of the mouthpiece is a cooling water inlet and the other end is an outlet, and the entire cooling water circulates back and forth through the outermost interlayer of the main structure. This allows the entire cooling water surface to fit the inner wall of the patient's mouth, taking away heat in time during radiotherapy, relieving the pain and burning sensation in the patient's mouth, and achieving a significant cooling effect. The second interlayer of the main structure is a ventilation system composed of an opening inside the interlayer and connected to an external gas delivery device (which can only deliver air or oxygen according to the different needs of the patient), which can effectively relieve the patient's breathing problems, chest tightness and other problems caused by the mouthpiece. In addition to the cooling water circulation system, the outermost layer of the main structure also has another system, namely the negative pressure saliva discharge system. This system is composed of a closed pipeline built into the outermost interlayer and connected to an external negative pressure device. The pipeline is located on the outside of the main structure and has several circular adsorption holes. The outer end of each adsorption hole is an uneven dot-shaped protrusion. These protrusions can effectively avoid the blockage of the adsorption hole starting section caused by the oral wall completely fitting the circular adsorption hole. The entrance of the adsorption hole is equipped with a filter net to prevent the patient from bringing large food residues into the channel due to unclean oral hygiene, thereby ensuring the smooth flow of each adsorption hole and achieving an effective saliva discharge effect. In addition, the adsorbed saliva is finally transported to the saliva discharge interface of the external device, and is stored in an external disposable collection bag, and thrown into the yellow trash can after the treatment is completed.

[0026] The external device of this specific embodiment is equipped with a micro water circulation machine, a micro negative pressure machine, a main control circuit board, a Bluetooth module, a rechargeable battery, a switch, a charging port, a saliva discharge interface, and a gas input interface, and is connected to the main structure through an extension hose and an adapter. In addition, the gas input interface can be connected to the pipeline for gas delivery according to the different needs of the patient; the saliva discharge interface can be connected to a saliva collection bag to store the collected saliva. The external device, the extension hose, the adapter, and the main support part can all be disassembled, and each channel can be rinsed and cleaned by a syringe after disassembly. The main material of the adapter is antibacterial plastic, and the main material of the extension hose is PVC. The extension hose is mainly used to connect the main support part and the external device. By extending the connection, it can avoid the radiation directly irradiating the metal components in the external device, avoid the metal artifacts of the diagnostic radiation during positioning, avoid the scattering of the treatment radiation during treatment, and extend the service life of the metal components in the external device.

[0027] The arched structure design of the main support part of this specific embodiment fully takes into account the patient's oral anatomical characteristics. By evenly distributing the supporting force on the inner wall of the oral cavity, the oral cavity is effectively propped open, reducing the discomfort caused by local pressure, and providing stable oral morphological support for precise treatment during radiotherapy. The arched structure conforms to the natural curve of the oral cavity, which not only improves the fixation effect of the device and avoids displacement, but also provides sufficient layout space for the integration of functional modules such as internal cooling, saliva discharge, and ventilation. In addition, the design facilitates the insertion and removal of the device, optimizes the operating experience of medical staff, and achieves a combination of comfort, functionality and practicality. The outer side of the arched structure provides space for cooling water to the greatest extent, and the entire cooling surface can fit closely to the inner wall of the oral cavity with the largest area, achieving a better cooling effect.

[0028] Most existing mouthpieces only have one or two of the following functions: cooling, saliva discharge, and ventilation. This specific embodiment integrates these three functions together, which can bring the most comfortable experience to patients in terms of functional use. This specific embodiment uses antibacterial plastic as the main material, which can effectively inhibit the growth of bacteria and other microorganisms, thereby significantly reducing the risk of infection caused by equipment during oral radiotherapy; at the same time, the antibacterial plastic does not contain metal, which avoids radiographic artifacts caused by metal materials during radiotherapy and ensures the accuracy of image quality. In addition, the surface of the antibacterial plastic can remain clean, reduce odor, improve patient comfort, and has good durability, which can reduce the need for frequent cleaning and replacement of equipment, further improving the service life and convenience of the equipment.

[0029] The connection between the inlet and the shell of the negative pressure adsorption system of this specific embodiment adopts regular dot-shaped protrusions, which can effectively avoid the blockage of the starting section of the adsorption hole due to the oral wall completely fitting the circular adsorption hole, and the entrance of the adsorption hole is provided with a filter net to prevent the patient's large food residues from being adsorbed into the channel due to unclean oral hygiene, thereby ensuring the smooth flow of each adsorption hole and achieving an effective saliva discharge effect. The design position of the silicone pad can not only fix the patient's tooth occlusion position, but also make appropriate adjustments to the position of the silicone pad according to the different lengths of the oral cavity of different patients, and it can also be disassembled for cleaning. The convenient snap-on design between the external devices makes disassembly easy and the main part can be cleaned.

[0030] The external device of this specific embodiment is equipped with a rechargeable battery, a Bluetooth control module, a switch, etc. The micro-negative pressure machine and the micro-water circulation machine can be monitored in real time, so that medical staff can remotely monitor the operating status of the device, and the external charging port and switch can facilitate charging and timely switching of the device, which is easy to use. In addition, the saliva discharge interface and gas input interface in the external device can be connected to external pipelines, which is convenient for disassembly and connection, and easy to clean.

[0031] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cooling and salivation venting mouthpiece for oral radiotherapy, characterized in that: The invention comprises a tongue depressor (1), a main body support part (2), an extension hose (9) and an external device (6); the left side of the main body support part (2) is connected with the tongue depressor (1); the right side of the main body support part (2) is connected with the external device (6) via an extension hose (9) with an adapter; the adapter on the left side of the extension hose (9) is clamped with the right end of the main body support part (2) via a buckle (8); a silicone soft pad (7) is provided at the connection between the adapter and the main body support part (2); and the adapter on the right side of the extension hose (9) is clamped and fixed with the external device (6) via the buckle (8).

2. A cooling and saliva-removing mouthpiece for oral radiotherapy according to claim 1, characterized in that: The main support part (2) is an intermediate main arch structure made of antibacterial plastic material, which is used to open the patient's mouth and includes an outer interlayer and a second interlayer. The outer interlayer is composed of a cooling water circulation system (3) and a negative pressure saliva discharge system (5). The second interlayer is composed of a ventilation system (4). The ventilation system (4) is arranged on the inner side of the cooling water circulation system (3), and the negative pressure saliva discharge system (5) is arranged on the cooling water circulation system (3); one end of the cooling water circulation system (3) is a cooling water inlet, and the other end is an outlet. The ventilation system (4) includes an internal opening of the second interlayer and an external gas delivery device, and the internal opening of the second interlayer is connected to the external gas delivery device. The negative pressure saliva discharge system (5) includes a closed pipeline (51) in the outer interlayer and an external negative pressure device. The closed pipeline is located on the outer side of the outer interlayer and is provided with a plurality of circular adsorption holes (A).

3. A cooling and saliva-removing mouthpiece for oral radiotherapy according to claim 2, characterized in that: The outer ends of the circular adsorption holes (A) are all regular dot-shaped protrusions (52), and a filter screen (53) is arranged at the entrance of the circular adsorption holes (A).

4. The cooling and saliva-removing mouthpiece for oral radiotherapy according to claim 1, characterized in that: The external device (6) is equipped with a micro water circulation machine, a micro negative pressure machine, a main control circuit board, a Bluetooth module, a rechargeable battery, a switch, and a charging port. A saliva discharge interface (11) and a gas input interface (10) are provided at the end of the external device (6). The gas input interface (10) is connected to the gas delivery device through a pipeline, and the saliva discharge interface (11) is externally connected to a saliva collection bag.

5. The cooling and saliva-removing mouthpiece for oral radiotherapy according to claim 1, characterized in that: The main support structure (2) and the adapter are both made of antibacterial plastic.

6. The cooling and saliva-removing mouthpiece for oral radiotherapy according to claim 1, characterized in that: The extension hose (9) is a PVC tube.

7. The cooling and saliva-removing mouthpiece for oral radiotherapy according to claim 2, characterized in that: The cooling water circulation system (3) fits the inner wall of the patient's oral cavity.

8. The cooling and saliva-removing mouthpiece for oral radiotherapy according to claim 1, characterized in that: The upper and lower sides of the tail of the main support part (2) are respectively provided with a first cooling water inlet female end (B1), a first negative pressure adsorption port female end (C1), a second negative pressure adsorption port female end (D1) and a first cooling water outlet female end (E1); the left end of the extension hose (9) is provided with a first cooling water inlet male end (B2), a first negative pressure adsorption port male end (C2), a second negative pressure adsorption port male end (D2) and a first cooling water outlet male end (E2); the first cooling water inlet female end (B1) is connected to the first cooling water inlet male end (B2), the first negative pressure adsorption port female end (C1) is connected to the first negative pressure adsorption port male end (C2), the second negative pressure adsorption port female end (D1) is connected to the second negative pressure adsorption port male end (D2), and the first cooling water outlet female end (E1) is connected to the first cooling water outlet male end (E2).

9. The cooling and saliva-removing mouthpiece for oral radiotherapy according to claim 1, characterized in that: The right end of the extension tube (9) is provided with a second cooling water inlet female end (B3), a third negative pressure adsorption port female end (C3), a fourth negative pressure adsorption port female end (D3) and a second cooling water outlet female end (E3); the left end of the external device (6) is provided with a second cooling water inlet male end (B4), a third negative pressure adsorption port male end (C4), a fourth negative pressure adsorption port male end (D4) and a second cooling water outlet male end (E4); the second cooling water inlet female end (B3) is connected to the second cooling water inlet male end (B4); the third negative pressure adsorption port female end (C3) is connected to the third negative pressure adsorption port male end (C4); the fourth negative pressure adsorption port female end (D3) is connected to the fourth negative pressure adsorption port male end (D4); and the second cooling water outlet female end (E3) is connected to the second cooling water outlet male end (E4).

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