Tongue stretching fixator for radiotherapy

Abstract

The utility model discloses a tongue extension fixer for radiotherapy, which comprises a mouth holding cylinder (100), a tongue support (200) and a denture (300), the denture (300) comprises an upper denture (310) and a lower denture (320), the tongue support (200) is connected to the rear side of the mouth holding cylinder (100), the mouth holding cylinder (100) is positioned between the upper denture (310) and the lower denture (320), the cross section of the tongue support (200) is U-shaped, the tongue support (200) comprises two side surfaces (210) and a bottom surface (220), and the bottom surface (220) is provided with a bottom surface (220). The rear edge (211), extending to the bottom face (220), of the side face (210) of the tongue support (200) is in an arc shape. According to the device, the tongue stretching design is adopted, so that comfort is improved, bucking of a patient is avoided, and repeatability of the positions where the tongue body is placed every time is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and more specifically, to a tongue-extending fixator for radiotherapy. Background Art

[0002] In the existing tongue fixation devices for radiotherapy, a tongue depressor, a tongue press, etc. are usually used. A tongue depressor is a simple fixation device that adjusts the degree of mouth opening and the degree of tongue pressing through tongue depressor sheets of different thicknesses. A tongue press is used to lower the position of the tongue, so that the tongue is as far away from the tumor nasopharyngeal target area as possible, thereby reducing the radiation dose of the tongue, reducing the damage to the taste cells of the tongue, and avoiding taste loss in patients during radiotherapy. However, it has been found in clinical use that traditional tongue depressors and tongue presses can cause the posterior part of the tongue to move towards the posterior pharyngeal wall, resulting in a closer distance between the posterior part of the tongue and the target area, so that the improvement of the radiation dose of the posterior part of the tongue is not significant.

[0003] According to the patent number publication (announcement) number: CN 219646560 U, publication (announcement) date: September 8, 2023, the disclosed tongue press; one end of the mouthpiece tube is provided with an extension part, a tongue depressor sheet is fixedly installed inside the mouthpiece tube, and a predetermined gap is maintained between the tongue depressor sheet and the lower bottom of the inner wall of the mouthpiece tube to form a tongue cover for fixing the tongue. Support rods are fixedly installed on the outer walls on both sides of the mouthpiece tube, and upper and lower dental trays are fixedly installed at the upper and lower ends of the two support rods. Tooth grooves are formed on the surfaces of the upper and lower dental trays, and dental gels are arranged inside the tooth grooves. The upper and lower dental trays are fixed to the teeth through the dental gels.

[0004] In the prior art including the above patent, the tongue press reduces the radiation dose of the tongue by pressing the tongue away from the target area during radiotherapy, but pressing the middle and rear ends of the tongue can cause nausea and discomfort. The tongue pressing fixation makes the tongue of the patient unable to move during radiotherapy and unable to swallow. If the time is too long, saliva cannot be swallowed, and choking may occur. The repeatability of the positions of the tongue depressor sheet and the traditional tongue press is poor, and it is impossible to effectively ensure the repeatability of the position of the tongue press placed each time. Summary of the Utility Model

[0005] The utility model aims to overcome at least one defect of the above prior art, and provides a tongue-extending fixator for radiotherapy to solve the problem of nausea or choking during radiotherapy.

[0006] The technical solution adopted by the utility model is a tongue-extending fixator for radiotherapy, which includes: a mouthpiece tube, a tongue support, an upper dental tray, and a lower dental tray. The tongue support is connected to the rear side of the mouthpiece tube. The mouthpiece tube is located between the upper and lower dental trays. The cross-section of the tongue support is U-shaped, including two sides and a bottom surface. The side surfaces of the tongue support extend to the rear edge of the bottom surface in an arc shape.

[0007] During radiotherapy, the teeth are placed on the upper dental tray and the lower dental tray, and the tongue body is placed on the tongue support at the rear side of the mouthpiece cylinder, keeping the mouth open and the tongue extended. The cross-section of the tongue support is U-shaped and the rear edge of the side extending to the bottom surface is arc-shaped, which better fits the curvature of the tongue body, and there is no foreign body sensation on both sides of the tongue, improving comfort; the mouthpiece cylinder does not press the tip of the tongue, leaving room for the tongue body to move, and the tongue body can perform swallowing movements to avoid choking.

[0008] In order to better match the shape of the tongue body and improve comfort, the tongue support has a structure that is narrower at the front and wider at the rear. This structure restricts the movement range of the tongue body, ensures the repeatability of the placement position of the tongue body by the tongue depressor each time, and better realizes reducing the irradiation dose of the tongue during radiotherapy.

[0009] In order to ensure that the patient's teeth remain stable during radiotherapy, a dental tray is designed, and the upper dental tray and the lower dental tray are U-shaped structures. The opening of the U-shaped structure faces the rear side of the mouthpiece cylinder, and the cross-section of the U-shaped structure is a U-shaped groove, which closely adheres to the tooth surface, fixes the teeth in the same position, and ensures the repeatability of the placement position of the tongue body by the tongue depressor each time.

[0010] The two ends of the U-shaped structures of the upper dental tray and the lower dental tray extend backward beyond the tongue support part. The upper dental tray and the lower dental tray fix all the teeth and have sufficient length to further restrict the movement of the teeth, ensuring the repeatability of the placement position of the tongue body by the tongue depressor each time.

[0011] In order to ensure that the patient's teeth are opened during radiotherapy and the tongue body is exposed under the irradiation lamp, a bracket is provided between the upper dental tray and the lower dental tray to fix the upper dental tray and the lower dental tray and prevent the upper dental tray and the lower dental tray from deforming and shifting during the biting process.

[0012] The bracket is fixed between the corresponding two ends of the U-shaped structures of the upper dental tray and the lower dental tray, preventing the two ends of the U-shaped structure as free ends from moving relative to each other during the biting process, and can well open the mouth, facilitating subsequent radiotherapy operations.

[0013] In order to make the teeth bite on the dental tray without shaking, the U-shaped groove of the dental tray includes an outer plate, an inner plate and a support plate. The outer plate is connected to the outside of the support plate, and the inner plate is connected to the inside of the support plate. The outer plate is higher than the inner plate, which is more in line with the oral anatomical structure, can completely wrap the teeth, thoroughly restrict the movement of the teeth, and ensure the repeatability of the placement position of the tongue body by the tongue depressor each time.

[0014] In order to further fix the teeth, a plurality of dental film adhesive fixing grooves are provided on the support plate. The dental film adhesive fixing grooves are used to prevent the dental film adhesive from shifting. The dental film adhesive fits the shape of the teeth and fixes the teeth while improving comfort.

[0015] And at least two of the dental film adhesive fixing grooves are provided at both ends of the U-shaped structure of the dental tray. The dental film adhesive fixing grooves are used to prevent the dental film adhesive. The dental film adhesive conforms to the shape of the teeth, fixing the teeth while improving comfort.

[0016] Among them, the shape of the dental film adhesive fixing groove is a hollow square, which is convenient for better placement and removal of the dental film adhesive, enabling the dental film adhesive to better conform to the shape of the teeth and improving comfort.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: When fixing the teeth and keeping the oral cavity open and the tongue extended, the tongue body has room to move and can perform swallowing actions without exceeding the range of the tongue tray, improving comfort, avoiding choking, and also ensuring the repeatability of the placement position of the tongue body by the tongue depressor each time, better achieving the reduction of the irradiation dose of the tongue during radiotherapy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 It is a structural diagram of the tongue tray of the present utility model.

[0020] Figure 3 It is a structural diagram of the dental tray of the present utility model.

[0021] Figure 4 It is a structural diagram of the upper dental tray of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The drawings of the present utility model are only for illustrative purposes and should not be construed as a limitation to the present utility model. For better illustrating the following embodiments, some components in the drawings will be omitted, enlarged, or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0023] The pain points solved by the present utility model are:

[0024] (1) Choking cough occurs: The tongue is fixed by pressing, so that the tongue cannot move during radiotherapy of the patient, and the tongue cannot perform swallowing. If the time is too long, saliva cannot be swallowed, and choking cough may occur.

[0025] (2) Poor repeatability: The repeatability of the position of the tongue depressor is poor, and it is impossible to effectively ensure the repeatability of the placement position of the tongue depressor each time.

[0026] The present utility model avoids the choking cough caused by the immovable tongue due to being pressed by extending the tongue, and improves the repeatability of the tongue depressor through the shape of the tongue tray and a series of ways such as fixing the teeth.

[0027] Embodiment

[0028] Such asFigure 1 As shown, a tongue-extending fixator for radiotherapy in this embodiment includes a mouthpiece 100, a tongue support 200, a dental tray 300, and a bracket 400. The rear end of the mouthpiece 100 is connected to the tongue support 200. The cross-section of the tongue support 200 is U-shaped. The dental trays 300 are arranged on the upper and lower sides of the outer wall of the mouthpiece 100, and the bracket 400 is supported between the dental trays 300.

[0029] In this embodiment, as Figure 2 shown, the tongue support 200 includes two side surfaces 210 and a bottom surface 220. The extension of the side surface 210 of the tongue support to the rear edge 211 of the bottom surface 220 is arc-shaped. During radiotherapy, the patient places the tongue body on the tongue support 200. The cross-section of the tongue support 200 is U-shaped, which fits the bottom and side surfaces of the tongue body, restricts the left and right movement of the tongue body, does not affect the up and down movement or stretching of the tongue body, nor does it affect the patient's swallowing, avoiding choking. The arc-shaped extension of the side surface 210 of the tongue support 200 to the rear edge of the bottom surface 220 makes the up and down movement or stretching of the tongue body more flexible, improving the comfort. The tongue support 200 has a structure that is narrower in the front and wider in the rear, which fits the shape of the tongue body, restricts the range of left and right movement of the tongue body, ensures the repeatability of the placement position of the tongue body each time, and better reduces the irradiation dose of the tongue during radiotherapy.

[0030] In this embodiment, in combination with Figure 1 and Figure 3 shown, dental trays 300 are provided on both the upper and lower sides of the outer wall of the mouthpiece 100. The dental tray 300 includes an upper dental tray 310 and a lower dental tray 320. The upper dental tray 310 is arranged on the upper side of the outer wall of the mouthpiece 100, and the lower dental tray 320 is arranged on the lower side 320 of the outer wall. Both the upper dental tray 310 and the lower dental tray 320 are U-shaped structures, and the cross-section of the U-shaped structure is a U-shaped groove. A bracket 400 is provided between the corresponding ends of the U-shaped structures of the upper dental tray 310 and the lower dental tray 320 to support the upper dental tray 310 and the lower dental tray 320 and keep the mouth open.

[0031] In this embodiment, as Figure 4As shown, the U-shaped groove is formed by connecting the outer plate 311, the inner plate 312 and the support plate 313. The outer plate 311 is connected to the outside of the support plate 313, and the inner plate 312 is connected to the inside of the support plate 313, fitting the teeth so that the teeth cannot move, ensuring the repeatability of the placement position of the tongue body each time. And the outer plate 311 is slightly higher than the inner plate 312. The outer plate 311 is closely attached to the gum part of the teeth, and the inner plate 312 is closely attached to the teeth, improving the comfort while ensuring that the teeth cannot move, and ensuring the repeatability of the placement position of the tongue body each time. Additionally, a plurality of dental film adhesive fixing grooves 314 are provided on the support plate 313 of the U-shaped grooves of the upper dental tray 310 and the lower dental tray 320, and at least two are provided at both ends of the U-shaped structures of the upper dental tray 310 and the lower dental tray 320. The dental film adhesive fixing grooves 314 are used to place dental film adhesive. The dental film adhesive fixing grooves 314 are square with a building mouth, which is better for placing dental film adhesive. When the teeth bite the upper dental tray 310 and the lower dental tray 320, they can closely fit the dental tray 300, fixing the teeth and ensuring the repeatability of the placement position of the tongue body each time.

[0032] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the technical solutions of the present invention, rather than limiting the specific implementation manners of the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the claims of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A radiotherapy tongue extension fixator, comprising a mouthpiece cylinder (100), a tongue support (200), and a dental tray (300). The dental tray (300) includes an upper dental tray (310) and a lower dental tray (320). The tongue support (200) is connected to the rear side of the mouthpiece cylinder (100). The mouthpiece cylinder (100) is located between the upper dental tray (310) and the lower dental tray (320). The cross-section of the tongue support (200) is U-shaped, including two side surfaces (210) and a bottom surface (220), and is characterized in that, The side surface (210) of the tongue support (200) extends to the rear edge (221) of the bottom surface (220) in an arc shape.

2. The radiotherapy tongue extension fixator according to claim 1, wherein The tongue support (200) has a structure that is narrow in the front and wide in the rear.

3. The radiotherapy tongue-extending fixator according to claim 1, wherein The upper dental tray (310) and the lower dental tray (320) are integrally of a U-shaped structure. The opening of the U-shaped structure faces the rear side of the mouthpiece cylinder, and the cross-section of the U-shaped structure is a U-shaped groove.

4. A radiotherapy tongue-extending fixator according to claim 3, characterized in that, The two ends of the U-shaped structures of the upper dental tray (310) and the lower dental tray (320) extend backward beyond the tongue support.

5. The radiotherapy tongue-extending fixator according to claim 4, characterized in that, It further includes a bracket (400), and a bracket (400) is provided between the upper dental tray (310) and the lower dental tray (320).

6. The radiotherapy tongue-extending fixator according to claim 5, characterized in that, The bracket (400) is fixed between the corresponding two ends of the U-shaped structures of the upper dental tray (310) and the lower dental tray (320).

7. The radiotherapy tongue-extending fixator according to claim 3, characterized in that, The U-shaped groove includes an outer plate (311), an inner plate (312), and a support plate (313). The outer plate (311) is connected to the outside of the support plate (313), the inner plate (312) is connected to the inside of the support plate (313), and the outer plate (311) is higher than the inner plate (312).

8. A radiotherapy tongue-extending fixator according to claim 7, characterized in that, A plurality of dental film adhesive fixing grooves (314) are provided on the support plate.

9. A radiotherapy tongue-extending fixator according to claim 8, characterized in that, At least two of the dental film adhesive fixing grooves (314) are provided at the two ends of the U-shaped structure of the dental tray (300).

10. The radiotherapy tongue-extending fixator according to claim 8, wherein The shape of the dental film adhesive fixing groove (314) is a hollow square.

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