A thermoplastic model making device for medical head and neck radiotherapy

Abstract

The utility model relates to the technical field of medical equipment, and discloses a thermoplastic model making device for medical head and neck radiotherapy, which comprises a model frame, and the model frame is arranged in a "C" shape; through a mask assembly, a cushion assembly and a storage assembly, when making a thermoplastic model for a patient, the cushion assembly is moved to move the gauze cushion to the patient's forehead, and then the prefabricated mask is taken out from the storage assembly and covered on the patient's face. If there are some deviations between the patient's facial features and the facial features of the prefabricated mask, the gauze mask of the mask assembly is pulled to cover the patient's face, and the eyes, nose and mouth of the patient on the gauze mask are hollowed out to form the shape of the mask. In this way, the thermoplastic model made will not cause compression on the patient's skin during cooling and contraction, improving the discomfort during the production of the thermoplastic film, reducing the patient's nervousness, and improving the patient's treatment compliance and comfort.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a thermoplastic model making device for medical head and neck radiotherapy. Background Technique

[0002] Head and neck malignancies are one of the common types of tumors, and radiotherapy is the main treatment method; during the radiotherapy process, thermoplastic membranes are widely used for the fixation and positioning of patients' heads and necks to ensure the accuracy and efficiency of treatment.

[0003] When making a thermoplastic model, it needs to cover the patient's skin. During the treatment process using the thermoplastic model, the model will cool and shrink. The problem of excessive shrinkage of the thermoplastic model during the treatment process brings troubles to the treatment. Because the shrinkage of the thermoplastic model will pull the patient's skin and cause extrusion, making the head and neck radiotherapy patients very tense during the treatment, and the unstable quality of the thermoplastic membrane may cause the patient not to persevere in the subsequent treatment, affecting the treatment effect. Therefore, it is necessary to design a thermoplastic model making device for medical head and neck radiotherapy that reduces the compression of the patient's skin during cooling. Summary of the Utility Model

[0004] To solve the technical problem that when using a thermoplastic model for treatment, the model will compress the patient's skin due to cooling and shrinkage, affecting the treatment effect, the utility model provides a thermoplastic model making device for medical head and neck radiotherapy.

[0005] The utility model is realized by the following technical solutions: a thermoplastic model making device for medical head and neck radiotherapy, including a model frame, the model frame is arranged in a "C" shape, one side of the model frame is provided with a mask assembly for covering the patient's face to make a thermoplastic model, one side of the mask assembly is provided with a cushion assembly for padding on the patient's forehead when making the thermoplastic model, and both sides of the model frame are provided with storage assemblies for storing items required for making the thermoplastic model.

[0006] Through the above technical solutions, when making a thermoplastic model for patient treatment, use the cushion assembly to place on the patient's forehead, take out the prefabricated mask from the storage assembly and place it on the patient's face. If the positions of the patient's facial features do not correspond to the positions of the prefabricated mask, then pull out the gauze mask of the mask assembly to cover the patient's face and cut out the patient's facial features. In this way, the thermoplastic model made will not compress the patient's skin when it shrinks.

[0007] As a further improvement of the above solution, the mask assembly includes a rotating shaft rotatably installed inside the model frame and a gauze mask sleeved on the rotating shaft, and a pulling port is opened on one side of the model frame, and one side of the gauze mask passes through the pulling port.

[0008] Through the above technical solution, the gauze mask is pulled to cover the patient's face, and after covering, the patient's eyes, nose and mouth are hollowed out to form the shape of the mask.

[0009] As a further improvement of the above-mentioned scheme, sliding grooves are provided on both sides of the inner wall of the model frame, and sliding blocks are slidably fitted inside the two sliding grooves. The pad assembly includes a gauze pad arranged between the two sliding blocks, a first splint provided on both sides of the gauze pad, and a second splint provided on one side of each first splint, and the gauze pad is located between the first splint and the second splint.

[0010] Through the above technical solution, the gauze pad can be moved to the patient's forehead by moving the sliding block, and after covering, it will be thickened at the position where the patient's bone landmarks are more prominent.

[0011] As a further improvement of the above scheme, two limit columns are provided on one side of each of the second clamps, one end of each of the limit columns passes through the adjacent second clamp and is fixedly installed with the adjacent first clamp, the other end of each of the limit columns is fixedly installed with a limit block, and each of the limit columns is sleeved with a push spring with one end fixedly installed with the adjacent limit column and the other end fixedly installed with the adjacent second clamp.

[0012] Through the above technical solution, the gauze pad can be clamped by pushing the spring to push the second clamping plate, thereby avoiding the gauze pad from moving when using the gauze mask.

[0013] As a further improvement of the above scheme, the storage assembly includes a storage box fixedly installed on one side of the model frame and having a movable groove, and a cover plate slidably arranged inside the movable groove, wherein a plurality of prefabricated facial masks are arranged inside one of the storage boxes.

[0014] Through the above technical solution, when making a thermoplastic model, the prefabricated mask is covered on the patient's face, so that the impact of the shrinkage of the model on the patient can be avoided.

[0015] As a further improvement of the above solution, a fixed sleeve at one end of the rotating shaft is provided with a cross fixing ring, a fixed column is fixedly installed on one side of the model frame, and a sliding sleeve on the fixed column is provided with a clamping block adapted to the cross fixing ring.

[0016] Through the above technical solution, when the gauze mask is of sufficient length for use, the cross fixing ring can be fixed with a clamp block, thereby avoiding waste of the gauze mask.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] Through the mask assembly, the cushion assembly and the storage assembly, when making a thermoplastic model for a patient, the cushion assembly is moved to move the gauze cushion to the patient's forehead, and then the prefabricated mask is taken out from the storage assembly and covered on the patient's face. If there are slight deviations between the patient's facial features and the facial features of the prefabricated mask, the gauze mask of the mask assembly is pulled to cover the patient's face, and the eyes, nose and mouth of the patient on the gauze mask are all hollowed out to form the shape of the mask. In this way, when the thermoplastic model cools and shrinks, it will not cause compression on the patient's skin, improving the discomfort during the production of the thermoplastic film, reducing the patient's nervousness, and improving the patient's treatment compliance and comfort level. Brief Description of the Drawings

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 It is a structural schematic diagram of the present utility model with a cushion assembly;

[0021] Figure 3 It is a structural schematic diagram of the present utility model with a cross fixing ring;

[0022] Figure 4 For the present utility model Figure 2 Enlarged view of the structure of part A;

[0023] Figure 5 It is an unfolded view of the prefabricated mask of the present utility model.

[0024] Main Symbol Description:

[0025] 1. Model stand; 201. Rotating shaft; 202. Gauze mask; 301. Gauze cushion; 302. First splint; 303. Second splint; 401. Storage box; 402. Cover plate; 5. Sliding block; 6. Limit post; 7. Limit block; 8. Push spring; 9. Prefabricated mask; 10. Fixed post; 11. Clamping block; 12. Cross fixing ring. Detailed Description of the Preferred Embodiments

[0026] Next, in combination with the drawings and the specific embodiments, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0027] Please refer to Figure 1-Figure 5 , a thermoplastic model making device for medical head and neck radiotherapy in this embodiment includes a model stand 1. The model stand 1 is arranged in a "C" shape. One side of the model stand 1 is provided with a mask assembly for covering the patient's face to make a thermoplastic model. One side of the mask assembly is provided with a cushion assembly for padding on the patient's forehead when making a thermoplastic model. Both sides of the model stand 1 are provided with storage assemblies for storing items required for making a thermoplastic model.

[0028] Combination Figure 1 The mask assembly includes a rotating shaft 201 rotatably installed inside the model frame 1 and a gauze mask 202 sleeved on the rotating shaft 201. A pulling port is opened on one side of the model frame 1, and one side of the gauze mask 202 passes through the pulling port. After the model is made, the gauze mask 202 will prevent the model from directly contacting the patient's skin and causing pressure on the patient's skin.

[0029] Combination Figure 1 , Figure 2 and Figure 4 The cam 302 is a first plate 303 formed on the second side of the cam 303 and a second plate 303 is formed on the second side of the cam 303. The cam 302 is a second plate 303 formed on the second side of the cam 303 and a second plate 303 is formed on the second side of the cam 303. The cam 302 is a first plate 303 formed on the second side of the cam 303 and a second plate 303 is formed on the second side of the cam 303.

[0030] Combination Figure 1 , Figure 2 and Figure 4 The storage component includes a storage box 401 fixedly mounted on one side of the model frame 1 and having a movable groove, and a cover plate 402 slidably arranged inside the movable groove. A plurality of prefabricated facial masks 9 are arranged inside one of the storage boxes 401. When making a thermoplastic model, the prefabricated facial masks 9 prepared in advance are covered on the patient's face to avoid compression of the facial skin caused by cooling of the model and to increase the speed of the entire treatment process.

[0031] Combination Figure 1 and Figure 3 A cross fixing ring 12 is fixedly sleeved at one end of the rotating shaft 201, and a fixing column 10 is fixedly installed at one side of the model frame 1. A clamping block 11 adapted to the cross fixing ring 12 is slidably sleeved on the fixing column 10. When the gauze mask 202 is of sufficient length for use, the clamping block 11 is used to fix the cross fixing ring 12 to avoid waste of the gauze mask 202.

[0032] The implementation principle of a thermoplastic model making device for medical head and neck radiotherapy in the embodiment of the present application is as follows: when a thermoplastic model needs to be made for a patient for treatment, the second clamping plate 303 is slid to clamp the gauze pad 301 of a length suitable for the patient, and the sliding block 5 is moved to move the gauze pad 301 to the patient's forehead for fitting and covering. The use of clamping can prevent the gauze pad 301 from slipping off the patient's forehead during subsequent production. The prefabricated mask 9 is taken out from the storage box 401 and covered on the patient's face. If the position where the patient's bone landmarks are more prominent is thickened, such as the forehead, maxilla, and mandible, the gauze mask 202 is thickened, and the model can be made directly. If the facial features of the prefabricated mask 9 deviate from the facial features of the patient, the gauze mask 202 is pulled to thicken the patient's face. The mask is then covered, and after covering, the patient's eyes, nose and mouth are hollowed out to form the shape of a mask, and the gauze mask 202 is thickened at locations where the patient's bone landmarks are more prominent, such as the forehead, maxilla and mandible. After the gauze pad 301 is completely covered and fits the patient's skin, the sliding block 11 fixes the cross fixing ring 12, so that the rotating shaft 201 cannot rotate, thereby avoiding the gauze pad 301 from rotating and pulling too long to cause waste. After all are covered, a thermoplastic model can be made, and the thermoplastic model made in this way will also have a composite shape, and will not tighten the patient's skin to cause oppression during cooling and shrinkage. This arrangement improves the discomfort during the thermoplastic film production process, reduces the patient's tension, and improves the patient's treatment compliance and comfort.

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A thermoplastic model making device for medical head and neck radiotherapy, comprising a model frame (1), characterized in that: The model rack (1) is arranged in a "C" shape. One side of the model rack (1) is provided with a mask assembly that covers the patient's face for thermoplastic model making. One side of the mask assembly is provided with a cushion assembly that pads on the patient's forehead when making the thermoplastic model. Both sides of the model rack (1) are provided with storage assemblies for storing items needed for making the thermoplastic model. The mask assembly includes a rotating shaft (201) rotatably installed inside the model rack (1) and a gauze mask (202) sleeved on the rotating shaft (201). A pulling opening is formed on one side of the model rack (1), and one side of the gauze mask (202) passes through the pulling opening. Sliding grooves are formed on both sides of the inner wall of the model rack (1), and sliding blocks (5) are slidably fitted inside the two sliding grooves. The cushion assembly includes a gauze pad (301) arranged between the two sliding blocks (5), first clamping plates (302) arranged on both sides of the gauze pad (301), and second clamping plates (303) arranged on one side of each first clamping plate (302). The gauze pad (301) is located between the first clamping plate (302) and the second clamping plate (303). The storage assembly includes a storage box (401) fixedly installed on one side of the model rack (1) and provided with a moving groove and a cover plate (402) slidably arranged inside the moving groove. Multiple prefabricated masks (9) that have been made are arranged inside one of the storage boxes (401).

2. A thermoplastic model making device for medical head and neck radiotherapy as claimed in claim 1, characterized in that: Two limit posts (6) are arranged on one side of each second clamping plate (303). One end of each limit post (6) penetrates through the adjacent second clamping plate (303) and is fixedly installed with the adjacent first clamping plate (302). A limit block (7) is fixedly installed at the other end of each limit post (6). A pushing spring (8) with one end fixedly installed with the adjacent limit post (6) and the other end fixedly installed with the adjacent second clamping plate (303) is sleeved on each limit post (6).

3. A thermoplastic model making device for medical head and neck radiotherapy as claimed in claim 1, characterized in that: A cross fixing ring (12) is fixedly sleeved at one end of the rotating shaft (201). A fixing post (10) is fixedly installed on one side of the model rack (1). A clamping block (11) adapted to the cross fixing ring (12) is slidably sleeved on the fixing post (10).

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