Low-temperature high-strength thermoplastic film
The low-temperature high-strength hot plastic film with positioning pins and mounting blocks addresses the issue of loose fittings in traditional films by using springs and magnets for secure attachment, enhancing stability and reducing tissue damage.
Patent Information
- Application Number
- CN202420572797.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-03-22
AI Technical Summary
The snaps of traditional thermoplastic films are rigidly connected, which leads to a decrease in the firmness of the clamping after long-term use, affecting the fixing effect.
The combined structure of the positioning pin and the installation block is adopted. Through the cooperation of the positioning pin and the installation block, the action of the spring and the electromagnet is used to achieve flexible fixation and avoid wear caused by hard clamping.
It improves the fixing firmness of the thermoplastic film, extends the service life, and ensures the fixing accuracy and treatment effect of radiotherapy patients.
Smart Images
Figure CN223095996U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermoplastic films, in particular to a low-temperature high-strength thermoplastic film. Background Art
[0002] The thermoplastic film is a new type of medical material with shape memory function, which is applied to the auxiliary fixation of the radiotherapy patient's body position, making the radiotherapy positioning and resetting accurate and the fixation firm, so as to improve the treatment effect and reduce the damage to the normal human tissues. It is the recognized preferred technology in radiotherapy positioning and fixation at home and abroad, and also the best product to replace the vacuum pad for positioning and fixation. The model specifications include facial mask, triangular facial mask, neck-shoulder film, head-neck-shoulder film, chest film, chest-abdominal film, abdominal film, body film, X-knife film, etc.
[0003] In the prior art, during the use of the traditional thermoplastic film, the thermoplastic film needs to be buckled to the radiotherapy part of the patient first, and then the thermoplastic film is fixed by a buckle, so as to fix the patient's body part. However, most of the traditional thermoplastic film fixing buckles adopt a rigid connection, that is, the buckle itself has a certain deformation range, and it is clamped with the fixing hole through the deformation of the buckle itself. There will be a large amount of wear during insertion and extraction, and the fastening force of the buckle will decrease after long-term rigid insertion and extraction, thus affecting the firmness of the clamping. Therefore, the utility model proposes a low-temperature high-strength thermoplastic film. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a low-temperature high-strength thermoplastic film. By setting positioning pins and mounting blocks, the positioning pins and the thermoplastic film body are fixed. This fixing method can avoid the wear caused by rigid clamping and affect the firmness of the installation.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A low-temperature high-strength thermoplastic film, comprising a thermoplastic film body and a plurality of mounting blocks. Both side walls at the two ends of the thermoplastic film body are fixedly connected with strip-shaped fixing plates. Two positioning pins are slidably connected through both strip-shaped fixing plates. The plurality of positioning pins are matched with the plurality of mounting blocks. The upper ends of the plurality of mounting blocks are all provided with insertion holes. Fixing cylinders matched with the insertion holes are fixedly sleeved on the plurality of positioning pins. Four positioning holes are circumferentially and equally spaced on the side walls of the plurality of fixing cylinders. Four grooves are circumferentially and equally spaced on the inner walls of the plurality of insertion holes. Positioning spheres matched with the positioning holes are slidably connected in the plurality of grooves.
[0007] Preferably, the plurality of positioning spheres are elastically connected with the inner walls of the same-side grooves through second springs.
[0008] Preferably, four electromagnets are arranged at equal intervals in the circumferential direction inside the mounting block, and the plurality of electromagnets cooperate with the positioning spheres.
[0009] Preferably, a fixing block is fixedly connected to the upper end of the positioning pin, and the lower end of the fixing block is elastically connected to the upper end of the strip-shaped fixing plate through a first spring.
[0010] Preferably, a plurality of through holes are formed in the thermoplastic film body, and the plurality of through holes are arranged at equal intervals.
[0011] Preferably, the plurality of positioning spheres are all made of metal.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] By providing the positioning pin and the mounting block, after the thermoplastic film body is placed, the positioning pin is inserted into the jack of the mounting block, the fixing block is pressed to move the positioning pin downward, so that the fixing cylinder enters the jack, and the four positioning spheres are squeezed to move into the groove, so that the second spring is compressed. When the positioning pin is in place, under the action of the second spring, the positioning spheres pop out into the positioning holes, realizing the fixation of the positioning pin and the thermoplastic film body. This fixing method can avoid wear caused by rigid clamping and affect the firmness of installation. Description of the Drawings
[0014] Figure 1 is a three-dimensional view of a low-temperature high-strength thermoplastic film proposed by the present utility model;
[0015] Figure 2 is a bottom view of a low-temperature high-strength thermoplastic film proposed by the present utility model;
[0016] Figure 3 is a three-dimensional view of the positioning pin of a low-temperature high-strength thermoplastic film proposed by the present utility model;
[0017] Figure 4 is Figure 3 the front sectional view of
[0018] Figure 5 is Figure 4 the enlarged view of the structure at A in
[0019] In the figure: 1 thermoplastic film body, 2 strip-shaped fixing plate, 3 first spring, 4 fixing block, 5 through hole, 6 fixing cylinder, 7 positioning hole, 8 positioning pin, 9 mounting block, 10 jack, 11 electromagnet, 12 second spring, 13 groove, 14 positioning sphere. Detailed Embodiment
[0020] In order to make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the specific embodiments of the present utility model in detail with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0021] Referring to Figures 1-5 , a low-temperature high-strength thermoplastic film includes a thermoplastic film main body 1 and a plurality of mounting blocks 9. Bar-shaped fixing plates 2 are fixedly connected to both side walls at the two ends of the thermoplastic film main body 1. Two positioning pins 8 are slidably connected through both of the two bar-shaped fixing plates 2. The plurality of positioning pins 8 cooperate with the plurality of mounting blocks 9. A jack 10 is opened at the upper end of each of the plurality of mounting blocks 9. A fixing cylinder 6 that cooperates with the jack 10 is fixedly sleeved on each of the plurality of positioning pins 8. Four positioning holes 7 are circumferentially and equidistantly distributed on the side walls of the plurality of fixing cylinders 6. Four grooves 13 that are circumferentially and equidistantly arranged are opened on the inner walls of the plurality of jacks 10. A positioning sphere 14 that cooperates with the positioning hole 7 is slidably connected in each of the plurality of grooves 13.
[0022] In the present utility model, the plurality of positioning spheres 14 are elastically connected to the inner walls of the same-side grooves 13 through second springs 12. Four electromagnets 11 that are circumferentially and equidistantly arranged are provided in the mounting block 9. The plurality of electromagnets 11 cooperate with the positioning spheres 14. A fixing block 4 is fixedly connected to the upper end of the positioning pin 8. The lower end of the fixing block 4 and the upper end of the bar-shaped fixing plate 2 are elastically connected through a first spring 3. The plurality of positioning spheres 14 are all made of metal. During installation, the electromagnets 11 are not energized and have no magnetism. During disassembly, the electromagnets 11 are energized to make them magnetic and attract the metal positioning spheres 14.
[0023] In the present utility model, a plurality of through holes 5 are opened on the thermoplastic film main body 1. The plurality of through holes 5 are arranged at equal intervals. The through holes 5 can make the thermoplastic film main body 1 have good air permeability and increase the functions of skin ventilation, heat dissipation, and sweating.
[0024] The thermoplastic film main body 1 is a film made of a thermoplastic resin as a base material, with strong plasticity. It can be completely transparently softened when placed in hot water at 60 - 70 °C, and can be stretched and shaped appropriately at will. The operation is simple and fast; it has a memory function. When the shaping is not satisfactory, it can be put back into hot water at 60 - 70 °C again to be softened again. The material can restore its previous size and shape and can be shaped again, and can be reused. At the same time, it has good X-ray permeability. Patients can have fluoroscopy and take X-rays with the plate, which will not affect or weaken the fluoroscopy and X-ray imaging effects. At the same time, the material is environmentally friendly. After being discarded and buried in the soil, it can be biodegradable by itself after 8 to 16 months.
[0025] The thermoplastic film body 1 can be used for the auxiliary fixation of the radiotherapy patient's body position, making the radiotherapy positioning and resetting accurate and the fixation firm, thereby improving the treatment effect and reducing the damage to the normal tissues of the human body.
[0026] When the utility model is in use, after the thermoplastic film body 1 is placed, the positioning pin 8 is inserted into the jack 10 of the mounting block 9, and the fixing block 4 is pressed to make the positioning pin 8 move downward, so that the fixing cylinder 6 enters the jack 10, and the four positioning spheres 14 are extruded to move into the groove 13, so that the second spring 12 is compressed. When the positioning pin 8 is in place, under the action of the second spring 12, the positioning spheres 14 pop out into the positioning holes 7 to fix the positioning pin 8 and the thermoplastic film body 1. This fixing method can avoid wear caused by hard clamping and affect the firmness of installation.
[0027] When disassembling, the electromagnet 11 is energized to make the electromagnet 11 magnetic, attracting the metal positioning spheres 14 and sucking the positioning spheres 14 into the groove 13. At this time, the positioning spheres 14 release the restriction on the positioning pin 8. Under the action of the first spring 3, the positioning pin 8 pops out of the jack 10, and the disassembly can be quickly completed, with high practicability.
[0028] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the utility model.
Claims
1. A low-temperature high-strength thermoplastic film, comprising a thermoplastic film main body (1) and a plurality of mounting blocks (9), characterized in that, Both side walls at the two ends of the thermoplastic film body (1) are fixedly connected with strip-shaped fixing plates (2). Two positioning pins (8) are slidably connected through each of the two strip-shaped fixing plates (2). The multiple positioning pins (8) are matched with multiple mounting blocks (9). Jacks (10) are formed at the upper ends of the multiple mounting blocks (9). Fixing cylinders (6) matched with the jacks (10) are fixedly sleeved on the multiple positioning pins (8). Four positioning holes (7) are circumferentially and equally spaced on the side walls of the multiple fixing cylinders (6). Four grooves (13) are circumferentially and equally spaced on the inner walls of the multiple jacks (10). Positioning spheres (14) matched with the positioning holes (7) are slidably connected in the multiple grooves (13).
2. The low-temperature high-strength thermoplastic film according to claim 1, characterized in that The multiple positioning spheres (14) and the inner walls of the grooves (13) on the same side are elastically connected through second springs (12).
3. The low-temperature high-strength thermoplastic film according to claim 2, characterized in that, Four electromagnets (11) are circumferentially and equally spaced in the mounting block (9). The multiple electromagnets (11) are matched with the positioning spheres (14).
4. A low-temperature high-strength thermoplastic film according to claim 3, characterized in that, A fixing block (4) is fixedly connected to the upper end of the positioning pin (8). The lower end of the fixing block (4) and the upper end of the strip-shaped fixing plate (2) are elastically connected through a first spring (3).
5. The low-temperature high-strength thermoplastic film according to claim 4, wherein Multiple through holes (5) are formed in the thermoplastic film body (1). The multiple through holes (5) are equally spaced.
6. The low-temperature high-strength thermoplastic film according to claim 5, characterized in that The multiple positioning spheres (14) are all made of metal.