Mouth opening exercise device after head and neck tumor radiotherapy

Abstract

The utility model particularly relates to a mouth opening exercise device after head and neck tumor radiotherapy, which comprises a support and two biteplates, the two biteplates are slidably mounted on the rear side of the support, the front ends of the two biteplates are respectively and fixedly provided with a connecting seat, and the front sides of the biteplates are provided with rotating seats which are rotationally connected with each other. Rotating blocks are rotatably mounted at the front ends of the connecting seats, first threaded rods are fixedly mounted at the rear ends of the rotating seats, threaded sleeves in threaded connection with the first threaded rods are rotatably mounted at the front ends of the rotating blocks, concave cavities are formed in the two rotating seats correspondingly, and connecting plates are rotatably mounted in the concave cavities correspondingly; a limiting rod is installed between the two connecting plates in an inserted mode, and a spring arranged on the periphery of the limiting rod in a sleeving mode is fixedly installed between the two connecting plates, the initial length of the spring can be adjusted, the effect of changing the elasticity of the device is achieved, and a patient is helped to conduct mouth opening function training better; the recovery and the function improvement of the temporomandibular joint are promoted.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical auxiliary equipment related technical field, concretely is a kind of mouth opening exercise device after head and neck tumor radiotherapy. BACKGROUND

[0002] With the development of medical technology, head and neck tumor radiotherapy becomes one of the important means of treating head and neck malignant tumors. However, patients often have difficulty opening their mouths after radiotherapy, which is due to the influence of radiation on the temporomandibular joint and surrounding muscles, leading to fibrosis and muscle atrophy. In order to solve this problem, mouth opening exercise devices are widely used in clinical rehabilitation.

[0003] The mouth opening exercise devices in the prior art usually use springs as elastic elements to control the difficulty of mouth opening training by adjusting the spring force. However, these devices have some defects in actual application, such as the initial length of the spring cannot be adjusted, which makes it impossible to make individualized settings according to the specific conditions of the patient; in addition, long-term use of the same spring force may cause a decrease in muscle adaptability, affecting the training effect, therefore, we propose a mouth opening exercise device after head and neck tumor radiotherapy. SUMMARY

[0004] The purpose of the utility model is to provide a mouth opening exercise device after head and neck tumor radiotherapy to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mouth opening exercise device after head and neck tumor radiotherapy, comprising a support and two bite plates, the two bite plates are slidingly installed on the rear side of the support, the front ends of the two bite plates are fixedly installed with connecting seats respectively, the front side of the bite plate is provided with rotating seats connected with each other, the front end of the connecting seat is rotatably installed with a rotating block, the rear end of the rotating seat is fixedly installed with a first threaded rod, the front end of the rotating block is rotatably installed with a threaded sleeve screwed with the first threaded rod, recess cavities are respectively formed in the two rotating seats, connecting plates are respectively rotatably installed in the recess cavities, a limiting rod is inserted and installed between the two connecting plates, a spring is fixedly installed between the two connecting plates and sheathed around the limiting rod.

[0006] Preferably, a limiting insertion cavity is formed at the rear end of the first threaded rod, a limiting insertion rod is fixedly installed at the front end of the rotating block, and the limiting insertion rod is inserted and installed in the limiting insertion cavity.

[0007] Preferably, the two connecting plates are centrally symmetrically distributed, and limiting insertion holes are formed on the surface of the connecting plates, and the limiting rods are inserted and installed in the limiting insertion holes.

[0008] Preferably, limit plates are slidably installed on the upper and lower sides of the inner cavity of the bracket, the two limit plates are respectively arranged on the outside of the two connecting seats, and a second threaded rod threadedly connected to the two limit plates is rotatably installed in the bracket.

[0009] Preferably, protective plates are fixedly installed on the upper and lower sides of the outer end of the bracket respectively, the protective plates and the bite plates are both arranged in an arc shape, and a through hole is opened at the upper end of the connecting seat, and the second threaded rod is rotatably installed in the through hole.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] This mouth opening exercise device after radiotherapy for head and neck tumors can adjust the distance between the connecting seat and the rotating seat through the threaded connection between the first threaded rod and the threaded sleeve, thereby adjusting the initial angle between the two rotating seats, and then adjusting the length of the spring between the two rotating seats, thereby achieving the effect of adjusting the spring elastic force, improving the applicability and flexibility of the device, and also helping to improve the patient's rehabilitation effect and comfort.

[0012] A mouth opening exercise device for post-radiotherapy treatment of head and neck tumors has a limit plate arranged on the outside of two connecting seats. The position of the limit plate can be adjusted through the threaded connection between the limit plate and the second threaded rod, thereby limiting the range of movement of the occlusal plate, thereby improving the stability of the device and achieving the effect of protecting the patient's lower jaw. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the external structure of the bracket and bite plate of the utility model;

[0014] Figure 2 This is a schematic diagram of the external structure of the bite plate and the rotating seat of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal split structure of the first threaded rod of the utility model;

[0016] Figure 4 This is a schematic diagram of the external structure of the connecting plate and spring of the utility model;

[0017] Figure 5 This is a schematic diagram of the split structure of the bracket and the bite plate of the utility model.

[0018] In the picture:

[0019] 1. Occlusal plate; 11. Connecting seat; 12. Rotating seat; 13. Rotating block; 14. First threaded rod; 141. Limiting rod; 142. Threaded sleeve; 143. Limiting cavity; 15. Concave cavity; 151. Connecting plate; 152. Limiting hole; 153. Limiting rod; 155. Spring;

[0020] 2, support; 21, guard plate; 22, through hole; 23, limiting plate; 24, second threaded rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in the embodiments of the utility model in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0022] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a head and neck tumor post-radiotherapy mouth opening exercise device, including support 2 and two bite plates 1, two bite plates 1 are slidably installed in the rear side of support 2, and the front end of two bite plates 1 is respectively fixedly installed with connecting seat 11, and the front side of bite plate 1 is equipped with the rotating seat 12 of mutual rotation, and the front end of connecting seat 11 is rotatably installed with rotating block 13, and the rear end of rotating seat 12 is fixedly installed with first threaded rod 14, and the front end of rotating block 13 is rotatably installed with the threaded sleeve 142 of screw connection with first threaded rod 14, and the recess 15 is respectively set in two rotating seats 12, and connecting plate 151 is rotatably installed in recess 15, and limiting rod 153 is inserted and installed between two connecting plates 151, and spring 155 is fixedly installed between two connecting plates 151 and is sleeved on the periphery of limiting rod 153.

[0023] Working principle: when the initial elasticity of the device is adjusted according to the mouth opening training needs of patient, rotating sleeve 142 is rotated between rotating block 13 and rotating seat 12, the distance between rotating block 13 and rotating seat 12 can be adjusted by the sliding connection between rotating sleeve 142 and first threaded rod 14, and the included angle of two rotating seats 12 can be adjusted by the rotating connection between two rotating seats 12 and rotating block 13 and the rotating connection between connecting seat 11 and rotating block 13, and the initial length of spring 155 between two rotating seats 12 can be adjusted by the insertion connection between limiting rod 153 and two connecting plates 151 and the rotating connection between connecting plate 151 and rotating seat 12, so that the initial elasticity of the device is adjusted.

[0024] Further description of the above technical solutions: the rear end of first threaded rod 14 is provided with limiting insertion cavity 143, and limiting insertion rod 141 is fixedly installed at the front end of rotating block 13, and limiting insertion rod 141 is inserted and installed in limiting insertion cavity 143;Two connecting plates 151 are centrally symmetrically distributed, and limiting hole 152 is formed in the surface of connecting plate 151, and limiting rod 153 is inserted and installed in limiting hole 152.

[0025] Specifically, by the insertion connection between the limiting insertion cavity 143 and the limiting insertion rod 141, the movement direction of the first threaded rod 14 can be limited, so that the rotating threaded sleeve 142 can drive the first threaded rod 14 to move through the threaded connection between the first threaded rod 14 and the threaded sleeve 142, thereby adjusting the distance between the rotating block 13 and the rotating seat 12.

[0026] As a further description of the above technical scheme: the inner cavity of the support 2 is slidably provided with two limiting plates 23 on the upper and lower sides, the two limiting plates 23 are respectively arranged outside the two connecting seats 11, and the support 2 is rotatably provided with a second threaded rod 24 which is in threaded connection with the two limiting plates 23; the outer end of the support 2 is fixedly provided with a protective plate 21 on the upper and lower sides, the protective plate 21 and the occlusion plate 1 are both arc-shaped, and the connecting seat 11 is provided with a through hole 22 at the upper end, and the second threaded rod 24 is rotatably arranged in the through hole 22.

[0027] Specifically, the protective plate 21 is arranged, and the protective plate 21 and the occlusion plate 1 are both arc-shaped, so that when the patient's teeth are occluded with the occlusion plate 1, the protective plate 21 can be in contact with the patient's lips, avoiding the contact between the patient's lips and the support 2 and the like, thereby protecting the patient's lips.

[0028] When it is necessary to limit the movement range of the occlusion plate 1, the second threaded rod 24 can be rotated in the support 2, and under the limitation of the movement direction of the limiting plate 23 in the inner cavity of the support 2, the rotating second threaded rod 24 can drive the two limiting plates 23 to move towards or away from each other through the threaded connection between the two limiting plates 23, thereby limiting the movement range of the connecting seat 11 and the occlusion plate 1.

[0029] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for mouth opening exercise after head and neck tumor radiotherapy, comprising a support (2) and two bite plates (1), characterized in that: Two said bite plates (1) are slidingly installed at the back side of the support (2), and the front ends of the two said bite plates (1) are fixedly installed with connecting seats (11), respectively. The front side of the bite plate (1) is provided with rotation seats (12) which are rotationally connected with each other. The front end of the connecting seat (11) is rotationally installed with a rotating block (13). The rear end of the rotation seat (12) is fixedly installed with a first threaded rod (14). The front end of the rotating block (13) is rotationally installed with a threaded sleeve (142) which is threadedly connected with the first threaded rod (14). The two said rotation seats (12) are respectively provided with recess cavities (15) in the inside. The recess cavities (15) are respectively rotationally installed with connecting plates (151). The two said connecting plates (151) are insertedly installed with a limiting rod (153) therebetween. The two said connecting plates (151) are fixedly installed with springs (155) which are sleeved on the outer periphery of the limiting rod (153).

2. The device for mouth opening exercise after head and neck tumor radiotherapy according to claim 1, characterized in that: The rear end of the first threaded rod (14) is provided with a limiting insertion cavity (143). The front end of the rotating block (13) is fixedly installed with a limiting insertion rod (141). The limiting insertion rod (141) is insertedly installed in the limiting insertion cavity (143).

3. The device for mouth opening exercise after head and neck tumor radiotherapy according to claim 1, characterized in that: The two said connecting plates (151) are centrally symmetrically distributed, and the surface of the connecting plate (151) is provided with a limiting insertion hole (152). The limiting rod (153) is insertedly installed in the limiting insertion hole (152).

4. The mouth opening exercise device for head and neck tumors after radiotherapy according to claim 1, characterized in that: The inner cavity of the support (2) is slidingly installed with limiting plates (23) on the upper and lower sides. The two said limiting plates (23) are respectively arranged on the outer side of the two connecting seats (11). The support (2) is rotationally installed with a second threaded rod (24) which is threadedly connected with the two limiting plates (23).

5. The device for mouth opening exercise after head and neck tumor radiotherapy according to claim 4, characterized in that: The outer end of the support (2) is fixedly installed with protective plates (21) on the upper and lower sides. The protective plates (21) and the bite plates (1) are both arc-shaped. The upper end of the connecting seat (11) is provided with a through hole (22). The second threaded rod (24) is rotationally installed in the through hole (22).

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