Vacuum pad and thermoplastic body film combined fixing device for chest tumor radiotherapy

Abstract

The invention discloses a chest tumor radiotherapy-used vacuum pad and thermoplastic body film combined fixing device, and belongs to the technical field of medical apparatuses and instruments, and the chest tumor radiotherapy-used vacuum pad and thermoplastic body film combined fixing device comprises a thermoplastic film; the headrest is arranged at one end of the thermoplastic film; the laminating positioning mechanism is arranged on the inner side of the thermoplastic film and comprises a laminating assembly, a shrinkage orientation assembly and a film positioning assembly; during use, the device can maintain relatively uniform distribution of filling materials in the material storage pad, the device can be attached to the shape of the body of a patient when a vacuum state is maintained, meanwhile, in the process of pumping out gas in the material storage pad, the side air bags on the side face can be expanded, and the material storage pad on the body side of the patient gets close to the body of the patient; the effects of uniformly supporting the patient and assisting the material storage pad to fit the shape of the body of the patient are achieved; the problems that in the prior art, filler in a vacuum pad moves and is distributed unevenly, when the interior of the vacuum pad is vacuumized, a gap is generated between the vacuum pad and the body of a patient and is not attached, and the effects of supporting the patient and shaping the chest side are poor are solved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a vacuum pad combined with a thermoplastic film fixing device for chest tumor radiotherapy. Background Art

[0002] Vacuum pads and thermoplastic membranes are both commonly used radiotherapy position fixation devices in medical devices, each with unique advantages. For example, the vacuum shaping pad is a soft pad filled with high polymer particles and made of PVC on the outside. Under normal conditions, the shaping pad is very soft and can wrap the patient's body or specific treatment area. When the patient is fixed in position, he lies flat on the vacuum pad. When the vacuum pad is completely matched with the body, the air in the vacuum pad is evacuated by a vacuum pump to form a negative pressure. At this time, the pad becomes solid and forms a shape consistent with the body part, just like orthopedic plaster. This vacuum pad is used every time during the patient's treatment to limit the movement of local body tissues and improve the accuracy of the position. The advantage of vacuum pad fixation is that the patient's position is comfortable. Especially for elderly and weak patients, the vacuum shaping pad fixation positioning technology is more advantageous and can effectively reduce the patient's involuntary body movement during treatment. Thermoplastic body film is a polymer thermoplastic material that softens in hot water at about 80 degrees and can be shaped after cooling; when the patient is fixed in position, he chooses a comfortable position, lies on the body board, covers the heated and softened thermoplastic film on the part of the patient that needs to be fixed, and waits for it to cool before shaping, which has a good fixation effect. The advantages of thermoplastic film are: colorless and odorless, can be naturally degraded, and does not pollute the environment. It is non-invasive to the patient, and it is simple and convenient to fix it with thermoplastic film during each treatment. If the two can be used in combination, the patient's position fixation effect can be effectively and comprehensively improved, thereby ensuring the accuracy and efficacy of the patient's radiotherapy. Therefore, how to combine the vacuum pad with the thermoplastic body film and apply it to the fixation of patients during chest tumor radiotherapy has become an urgent problem to be solved in this field.

[0003] After searching, in order to solve the above problems, a vacuum pad combined with a thermoplastic film fixing device for chest tumor radiotherapy is disclosed in the invention patent with the announcement number CN113069692B. The device can provide a gripping part for the patient through the setting of a fixing mechanism, an adjustment mechanism, a vacuum pad and a thermoplastic film, so as to facilitate the patient to open the chest cavity. The fully opened chest cavity can significantly improve the positioning accuracy. At the same time, the vacuum pad and the thermoplastic film are connected through a fixing plate to position the thermoplastic film and the vacuum pad. Then, the neck pillow and the positioning plate on the fixing plate are used to provide auxiliary positioning for the thermoplastic film and the vacuum pad, which can effectively enhance the fitting effect of the thermoplastic film and the vacuum pad with the patient's body, so that the manufactured vacuum pad and the thermoplastic film can be more conveniently and quickly fitted when used again, thereby enhancing the convenience of using the vacuum pad and the thermoplastic film. However, when the device is used, there are still problems such as:

[0004] 1. Since the patient always lies on the vacuum cushion during the use of the device, the patient's body will squeeze the internal filling material during the gradual extraction of gas, causing the filling material inside the vacuum cushion to move and make the space distribution uneven. When the vacuum cushion evacuates the internal gas to maintain the vacuum state, the internal filling material will cause a gap between the vacuum cushion and the patient's body, which is not fit enough and cannot provide good support and protection for the patient;

[0005] 2. The device cannot maintain the positioning effect on the lower end surface of the storage pad when in use, which causes the storage pad to curl or curl during the process of vacuuming and decompression, affecting the effect of supporting the patient and shaping the chest side during radiotherapy;

[0006] Therefore, the present invention proposes a novel vacuum pad combined with a thermoplastic film fixing device for chest tumor radiotherapy to solve the problems existing in the above-mentioned prior art. Summary of the invention

[0007] Based on this, it is necessary to provide a vacuum pad combined with a thermoplastic film fixation device for chest tumor radiotherapy in view of the problem that the patient's body will squeeze the internal filling material, the filling material inside the vacuum pad will move and be unevenly distributed, and when the vacuum pad evacuates the internal gas to maintain the vacuum state, a gap will be created between the vacuum pad and the patient's body and the gap will not fit well enough.

[0008] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0009] A vacuum pad combined with a thermoplastic film fixing device for chest tumor radiotherapy, comprising:

[0010] Thermoplastic film;

[0011] A headrest, disposed at one end of the thermoplastic film;

[0012] The laminating and positioning mechanism is arranged inside the thermoplastic film and extends to the bottom of the headrest, including a laminating component arranged inside the thermoplastic film, a shrinking and orienting component arranged below the laminating component, the shrinking and orienting component extending to the bottom of the headrest, and film positioning components arranged on both sides of the laminating component, the film positioning components arranged inside the shrinking and orienting component;

[0013] In one embodiment, the bonding component includes a storage pad arranged above the shrinkage orienting component, the storage pad is located on the inner side of the thermoplastic film, side airbags are arranged on both sides of the storage pad, a connecting pipe is arranged at one end of the side airbag, a guide pipe is arranged at one end of the storage pad, the connecting pipe is connected to the injection pipe, and an air outlet head is arranged at the other end of the side airbag.

[0014] In one of the embodiments, the material storage pad is provided with internal filling material, the inner top wall of the material storage pad is provided with a plurality of top soft rubber sheets, and the inner bottom wall of the material storage pad is provided with bottom soft rubber straight sheets.

[0015] In one of the embodiments, an internal corrugated soft rubber sheet is provided at the upper end of the bottom soft rubber straight sheet, and soft rubber spacers are provided between adjacent bottom soft rubber straight sheets.

[0016] In one embodiment, the shrinkage and orienting component includes a bottom plate arranged at the lower end of the headrest, a middle groove is opened in the middle of the upper end of the bottom plate, a middle block is slidably connected to the inner wall of the middle groove, the middle block is arranged at the lower end of the storage pad, a side groove is opened on the side of the bottom plate, sliding grooves opened on the upper end of the bottom plate are arranged on both sides of the middle block, and a rotating head is slidably connected inside the sliding groove.

[0017] In one of the embodiments, a connecting strip is provided at the upper end of the rotating head, and the connecting strip is connected to the lower end of the storage pad.

[0018] In one embodiment, an inner groove is provided between the sliding grooves on one side, the inner groove is communicated with the adjacent sliding groove, a sliding bar is slidably connected in the inner groove, and the sliding bar is arranged at the lower end of the rotating head.

[0019] In one embodiment, the film positioning assembly includes a fixed seat arranged on the bottom wall of the side groove, and a film edge strip fixedly connected to the side of the thermoplastic film, the fixed seat is slidably connected to a sliding seat, a clamping plate is arranged on the side of the sliding seat close to the headrest, an upper end groove is opened at the upper end of the film edge strip, a T-shaped frame is clamped in the upper end groove, and the surface of the T-shaped frame is in contact with the adjacent clamping plate; an L-shaped plate is arranged in the film edge strip, and an inner plate is embedded in the surface of the T-shaped frame, the lower end of the inner plate is in contact with the inner bottom of the L-shaped plate, and the upper end of the inner plate is in contact with the lower end of the clamping plate.

[0020] In one of the embodiments, slideways are provided on both sides of the fixed seat, a slide bar is fixedly provided in the sliding seat, and the slide bar is slidably connected in the slide way.

[0021] In one of the embodiments, a positioning hole is formed at the upper end of the fixing seat, a positioning pin is inserted into the positioning hole, and the positioning pin is clamped on the inner side of the sliding seat.

[0022] Compared with the prior art, the present invention provides a vacuum pad combined with a thermoplastic film fixing device for chest tumor radiotherapy, which has the following beneficial effects:

[0023] 1. Through the setting of the fitting component, the above-mentioned vacuum pad combined with the thermoplastic body film fixing device for chest tumor radiotherapy can maintain a relatively uniform distribution of the inner filling material inside the storage pad when the patient lies on the storage pad during use. When the vacuum state is maintained, the device will fit the patient's body shape. At the same time, when the device extracts the gas inside the storage pad, the side airbags will gradually expand so that the storage pad on the patient's side is closer to the patient's body shape, thereby achieving the effect of evenly supporting the patient and assisting the storage pad to fit the patient's body shape.

[0024] 2. Through the setting of the shrinkage directional component, when the storage pad shrinks under the action of the shrinkage directional component, the positioning effect on the lower end surface of the storage pad can be maintained, so that the lower end of the storage pad will not curl when the gas is extracted from the storage pad, ensuring the stable contact between the lower part of the storage pad and the upper part of the bottom plate, while assisting the storage pad in supporting the patient's shape and enhancing the storage pad's close fit with the patient during the extraction process;

[0025] 3. Through the setting of the film positioning component, when the medical staff uses the thermoplastic film, it will fit the patient's chest and squeeze the side airbags at the same time, so that the side airbags will move closer to the patient. The squeezing of the side airbags will make the storage pad fit the patient's body shape again. At the same time, under the action of the air outlet, the thermoplastic film can also maintain the effect of shaping the patient's chest and the patient's chest during the secondary shaping. The problem of the patient's body squeezing the internal filling material, the filling material inside the vacuum pad moving and unevenly distributed, the gap between the vacuum pad and the patient's body when the vacuum pad evacuates the internal gas to maintain the vacuum state, and the poor effect of supporting and shaping the patient's chest is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic structural diagram of a vacuum pad combined with a thermoplastic film fixing device for chest tumor radiotherapy of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the laminating and positioning mechanism of the present invention;

[0029] Figure 3 It is a structural schematic diagram of the bonding component of the present invention;

[0030] Figure 4 It is a schematic diagram of the connection between the storage pad and the side airbag of the present invention;

[0031] Figure 5 It is a schematic diagram of the positions of the inner filling material and the top soft film of the present invention;

[0032] Figure 6 It is a schematic diagram of the connection between the bottom soft rubber straight sheet and the internal corrugated soft rubber sheet of the present invention;

[0033] Figure 7 It is a schematic diagram of the opening of the middle groove of the present invention;

[0034] Figure 8 It is a schematic diagram of the opening of the internal groove of the present invention;

[0035] Fig. 9 It is a schematic diagram of the explosion structure of the membrane positioning assembly of the present invention;

[0036] Fig.10 For the present invention Figure 1 A partial enlarged view of point A in the middle.

[0037]

Main component symbol description

[0038] 1. Thermoplastic film;

[0039] 2. Headrest;

[0040] 3. Fitting and positioning mechanism; 31. Fitting assembly; 311. Material storage pad; 312. Side airbag; 313. Connecting pipe; 314. Injection pipe; 315. Outlet pipe; 316. Air outlet head; 317. Internal filling material; 318. Bottom soft rubber straight sheet; 319. Top soft rubber sheet; 3110. Internal corrugated soft rubber sheet; 3111. Soft rubber spacer; 32. Shrinkage and orientation assembly; 321. Bottom plate; 322. Middle groove; 323. Middle block; 324. Connecting strip; 325. Rotating head; 326. Sliding strip; 327. Sliding slot; 328. Internal slot; 329. Side slot; 33. Membrane positioning assembly; 331. Fixed seat; 332. Sliding seat; 333. Card plate; 334. Membrane side strip; 335. Upper end slot; 336. T-shaped frame; 337. Slideway; 338. Sliding strip; 339. Positioning hole; 3310. Positioning pin; 3311. Inner plate; 3312. L-shaped plate;

[0041] 4. Pressure sensor. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme of the vacuum pad combined with the thermoplastic film fixing device for chest tumor radiotherapy in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] Unless otherwise defined, all technical and scientific terms used in the specification of the present invention have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in the specification of the present invention includes any and all combinations of one or more related listed items.

[0047] Embodiment 1:

[0048] like Figures 1 to 10As shown, the present invention provides an implementation mode:

[0049] A vacuum pad combined with a thermoplastic film fixing device for chest tumor radiotherapy, comprising:

[0050] Thermoplastic film 1;

[0051] A headrest 2, wherein the headrest 2 is arranged at one end of the thermoplastic film 1;

[0052] The laminating and positioning mechanism 3 is arranged on the inner side of the thermoplastic film 1 and extends to the bottom of the headrest 2, and includes a laminating component 31 arranged on the inner side of the thermoplastic film 1, a shrinkage and orientation component 32 is arranged below the laminating component 31, the shrinkage and orientation component 32 extends to the lower end of the headrest 2, and film positioning components 33 are arranged on both sides of the laminating component 31, and the film positioning component 33 is installed inside the shrinkage and orientation component 32.

[0053] As a preferred embodiment, Figure 3 , Figure 4 and Figure 5 As shown, the laminating component 31 includes a storage pad 311 arranged above the shrinkage and orientation component 32, the storage pad 311 is located on the inner side of the thermoplastic film 1, and side airbags 312 are fixedly connected to both sides of the storage pad 311, one end of the side airbag 312 is fixedly connected to a connecting pipe 313, and one end of the storage pad 311 is fixedly connected to a guide pipe 315, the surface of the connecting pipe 313 is connected to an injection pipe 314, and the other end of the side airbag 312 is fixedly connected to a guide pipe 315. The end is fixedly connected with an air outlet head 316; the other end of the injection tube 314 is connected with an air pump, and the air pump is connected with the free end of the outlet tube 315; at the same time, in order to facilitate real-time monitoring of the air pressure in the storage pad 311 and the side airbag 312, pressure sensors 4 are installed on the storage pad 311 and the side airbag 312, and the air pressure in the storage pad 311 and the side airbag 312 is monitored in real time by the pressure sensor 4, and displayed on the instrument panel, which is convenient for medical staff to check.

[0054] In this embodiment, when in use, by driving the air pump, a negative pressure is formed inside the outlet tube 315, and the gas inside the storage pad 311 is extracted through the outlet tube 315; at the same time, the extracted gas is injected into the side airbags 312 through the injection tube 314 and the connected connecting tube 313 under the action of the air pump, so that the side airbags 312 will expand, and then the side airbags 312 will gather the edges of the storage pad 311 towards the patient's body while expanding, so that the storage pad 311 fits the patient's body shape while the air is evacuated to a vacuum.

[0055] As a preferred embodiment, Figure 3 , Figure 4 and Figure 5 As shown, the interior of the material storage pad 311 is provided with an internal filling material 317, and a plurality of top soft rubber sheets 319 are fixedly connected to the inner top wall of the material storage pad 311, the inner bottom wall of the material storage pad 311 is fixedly connected to a bottom soft rubber straight sheet 318, the upper end of the bottom soft rubber straight sheet 318 is fixedly connected to an internal corrugated soft rubber sheet 3110, and soft rubber spacers 3111 are fixedly connected between adjacent bottom soft rubber straight sheets 318.

[0056] In the present embodiment, when in use, the inner filling material 317 inside the material storage pad 311 is compressed by the patient's body under the action of the bottom soft rubber straight sheet 318 and the soft rubber spacer 3111, while maintaining the situation of partial support of the inner filling material 317, so that the inner filling material 317 inside the material storage pad 311 can be distributed relatively evenly, and under the action of the internal corrugated soft rubber sheet 3110 and the top soft rubber sheet 319, the inner filling material 317 can assist in supporting the patient's weight when compressed by the patient, so as to achieve the purpose of delaying the inner filling material 317 from being squeezed and running inside the material storage pad 311, and assisting in supporting the patient; and the internal corrugated soft rubber sheet 3110 and the top soft rubber sheet 319 are provided. 110 and the top soft film 319 are both wavy, and the internal corrugated soft film 3110 and the top soft film 319 are staggered, which can reduce the speed of the inner filling material 317 spreading to the surroundings when it is squeezed inside the storage pad 311 during use, and the upper end of the overall internal corrugated soft film 3110 is combined to form an arc similar to a concave shape. When the patient lies on the storage pad 311, due to the connection between the back and the storage pad 311, the storage pad 311 is squeezed by the patient's back, which will cause the internal filling material 317 to move to both sides. At that time, the internal corrugated soft film 3110 and the top soft film 319 are staggered to reduce the movement speed of the inner filling material 317 inside the storage pad 311.

[0057] At the same time, through the above-mentioned arrangement, a plurality of small grids can be formed under the action of the soft rubber spacer 3111 and the bottom soft rubber straight sheet 318, so that part of the inner filling material 317 is always located on the inner side of the small grid. The inner filling material 317 of the storage pad 311 close to the side airbags 312 area, and the inner filling material 317 close to the two sides of the patient, under the action of the expansion of the internal corrugated soft rubber sheet 3110 and the side airbags 312, make the auxiliary storage pad 311 fit the patient's side body shape. After the internal gas of the storage pad 311 is extracted, a relatively uniform storage pad 311 that fits the patient's body shape can be obtained, thereby ensuring the patient's comfort.

[0058] Embodiment 2:

[0059] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the shrinkage and orienting component 32 includes a bottom plate 321 arranged at the lower end of the headrest 2, a middle groove 322 is opened in the middle of the upper end of the bottom plate 321, a middle block 323 is slidably connected to the inner wall of the middle groove 322, the middle block 323 is fixedly connected to the lower end of the storage pad 311, and a side groove 329 is opened on the side of the bottom plate 321, and sliding grooves 327 opened at the upper end of the bottom plate 321 are arranged on both sides of the middle block 323, and a rotating head 325 is slidably connected to the inner wall of the sliding groove 327.

[0060] The upper end of the rotating head 325 is fixedly connected with a connecting bar 324 , and the connecting bar 324 is fixedly connected to the lower end of the material storage pad 311 .

[0061] An inner groove 328 is provided between the sliding grooves 327 on one side. The inner groove 328 is communicated with the adjacent sliding groove 327 . A sliding bar 326 is slidably connected to the inner wall of the inner groove 328 . The sliding bar 326 is installed at the lower end of the rotating head 325 .

[0062] In this embodiment, when the material storage pad 311 is placed, the sliding bar 326 can be placed in the inner groove 328 first, and then the middle block 323 fixedly connected to the lower end of the material storage pad 311 is inserted into the middle groove 322, and the middle block 323 can be kept to slide smoothly in the middle groove 322;

[0063] At the same time, the connecting bar 324 fixed at the lower end of the material storage pad 311 will carry the rotating head 325 fixed at its lower end and insert it into the interior of the sliding groove 327, and then the sliding bar 326 and the sliding groove 327 can be connected by bolts, or a card slot can be opened at the lower end of the sliding groove 327 for plugging, and the specific connection method can be appropriately adjusted according to the environment;

[0064] When the storage pad 311 is evacuated and contracted, the middle block 323 slides on the inner wall of the middle groove 322, and at the same time the connecting strip 324 approaches the center of the lower end of the storage pad 311, keeping the lower end of the storage pad 311 in contact with the upper end of the bottom plate 321, thereby helping the storage pad 311 to provide relatively uniform support for the patient when in use.

[0065] Embodiment 3:

[0066] like Figure 1 , Figure 2 , Figure 4 and Fig. 9As shown, the film positioning assembly 33 includes a fixing seat 331 fixedly connected to the inner bottom wall of the side groove 329, and a film edge strip 334 fixedly connected to the side of the thermoplastic film 1; wherein the surface of the fixing seat 331 is slidably connected to a sliding seat 332, and the sliding seat 332 is fixedly connected to two clamping plates 333 on the side close to the headrest 2; an upper end groove 335 is formed at the upper end of the film edge strip 334, and a T-shaped frame 336 is clamped on the inner wall of the upper end groove 335, and the surface of the T-shaped frame 336 contacts the surface of the adjacent clamping plate 333; the inner wall of the film edge strip 334 is also fixedly connected to an L-shaped plate 3312, and an inner embedded plate 3311 is embedded and installed on the surface of the T-shaped frame 336, and the lower end of the inner embedded plate 3311 contacts the inner bottom of the L-shaped plate 3312, and the upper end of the inner embedded plate 3311 contacts the lower end of the clamping plate 333.

[0067] Slideways 337 are provided on both sides of the fixed seat 331 . A slide bar 338 is fixedly connected to the inner wall of the sliding seat 332 . The slide bar 338 is slidably connected to the inner wall of the slideway 337 .

[0068] A positioning hole 339 is formed at the upper end of the fixing seat 331 . A positioning pin 331 is inserted into the positioning hole 339 . The positioning pin 331 is engaged with the inner side of the sliding seat 332 .

[0069] A friction pad is provided on one side where the film edge strip 334 contacts the thermoplastic film 1. The friction pad and the thermoplastic film 1 interact with each other to increase the friction between the thermoplastic film 1 and the film edge strip 334 after installation, so as to avoid the problem of the thermoplastic film 1 slipping due to the smooth edge during use.

[0070] In the present embodiment, when the medical staff uses the thermoplastic film 1, the film edge strips 334 are placed on both sides of the patient, so that the thermoplastic film 1 contacts the surface of the side airbags 312, thereby playing an auxiliary limiting role for the side airbags 312. At the same time, due to the squeezing of the patient's chest cavity, the thermoplastic film 1 is molded. At this time, the thermoplastic film 1 and the side airbags 312 form an extrusion force under the action of the film edge strips 334. The device can form a positioning effect on the film edge strips 334 through the cooperation of the T-shaped frame 336 and the sliding seat 332, and assist the side airbags 312 to form an extrusion effect on the storage pad 311 to fit the patient's body shape, thereby achieving the body shaping effect on the upper part of the patient's chest cavity, and can also assist the storage pad 311 under the patient's back to simultaneously perform the body shaping effect;

[0071] While the thermoplastic film 1 is gradually shaped according to the patient's body shape and the storage pad 311 has been shaped, the air outlet 316 can be opened to gradually evacuate the gas inside the side airbags 312 so that the contact surface between the side airbags 312 and the thermoplastic film 1 is gradually lowered, and a secondary shaping can be performed again according to the patient's body shape. Since the patient's chest area has been shaped before, but under the squeezed state, there may be a situation of excessive fit and squeeze deformation, the secondary shaping can assist in shaping the patient's chest while maintaining the patient's chest contour. Afterwards, the device can gradually make the film edge strip 334 fit the patient under the action of the positioning pin 3310, so that the shaping effect on the patient's chest side is more fitting.

[0072] When the vacuum pad combined with the thermoplastic film fixing device for chest tumor radiotherapy of the present invention is used:

[0073] First, place the sliding bar 326 in the internal groove 328, keep the filling material 317 in the storage pad 311 evenly placed on the bottom plate 321, insert the middle block 323 fixedly connected to the lower end of the storage pad 311 into the middle groove 322, and the connecting bar 324 fixed at the lower end of the storage pad 311 will carry the rotating head 325 fixed to its lower end and insert it into the sliding groove 327, then connect the sliding bar 326 with the sliding groove 327, and the patient lies on the top of the storage pad 311 to drive The dynamic air pump extracts the gas inside the storage pad 311 through the outlet pipe 315, and then injects the extracted gas into the side airbags 312 through the injection pipe 314 and the connecting pipe 313. When the storage pad 311 is evacuated and contracted, the middle block 323 slides on the inner wall of the middle groove 322, and the connecting strip 324 approaches the center of the lower end of the storage pad 311. The side airbags 312 will expand and bring the edges of the storage pad 311 toward the patient's body. The storage pad 311 is evacuated to a vacuum state and fits the patient's body shape.

[0074] Then, the inner filling material 317 inside the material storage pad 311 will cooperate with the bottom soft rubber straight sheet 318 and the soft rubber spacer 3111 under the action of the inner corrugated soft rubber sheet 3110 and the top soft rubber sheet 319, so that the inner filling material 317 can be evenly distributed inside the material storage pad 311 to support the patient's body; the medical staff will fit the heated thermoplastic film 1 to the patient's chest, and put two film edge strips 334 on both sides of the patient, so that the thermoplastic film 1 first contacts the patient's chest, and then the thermoplastic film 1 contacts the surface of the side airbag 312, and the thermoplastic film 1 and the side airbag 312 form an extrusion force under the action of the film edge strips 334;

[0075] Again, the device forms a positioning effect on the film edge strip 334 through the cooperation of the T-frame 336 and the sliding seat 332. After the thermoplastic film 1 is gradually shaped according to the patient's body shape and the storage pad 311 has been shaped, the air outlet 316 is opened to gradually evacuate the gas inside the side airbags 312, and the contact surface of the side airbags 312 with the thermoplastic film 1 is gradually lowered, and the secondary shaping is performed again according to the patient's body shape. The secondary shaping can assist in shaping the patient's chest side while maintaining the patient's chest contour.

[0076] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A vacuum pad combined with a thermoplastic film fixing device for chest tumor radiotherapy, characterized in that: include: Thermoplastic film (1); A headrest (2) is arranged at one end of the thermoplastic film (1); The laminating and positioning mechanism (3) is arranged on the inner side of the thermoplastic film (1) and extends to the bottom of the headrest (2), comprising a laminating component (31) arranged on the inner side of the thermoplastic film (1), a shrinking and orienting component (32) arranged below the laminating component (31), the shrinking and orienting component (32) extending to the lower end of the headrest (2), and film positioning components (33) arranged on both sides of the laminating component (31), the film positioning components (33) being arranged inside the shrinking and orienting component (32).

2. The vacuum pad combined with thermoplastic film fixing device for chest tumor radiotherapy according to claim 1, characterized in that: The laminating component (31) comprises a material storage pad (311) arranged above the shrinkage and orientation component (32), the material storage pad (311) is located on the inner side of the thermoplastic film (1), side air bags (312) are arranged on both sides of the material storage pad (311), a connecting pipe (313) is arranged at one end of the side air bag (312), a guide pipe (315) is arranged at one end of the material storage pad (311), the connecting pipe (313) is connected to the injection pipe (314), and an air outlet head (316) is arranged at the other end of the side air bag (312).

3. The vacuum pad combined with thermoplastic film fixing device for chest tumor radiotherapy according to claim 2, characterized in that: The material storage pad (311) is provided with an internal filling material (317), the inner top wall of the material storage pad (311) is provided with a plurality of top soft rubber sheets (319), and the inner bottom wall of the material storage pad (311) is provided with a bottom soft rubber straight sheet (318).

4. The vacuum pad combined with thermoplastic film fixing device for chest tumor radiotherapy according to claim 3, characterized in that: An internal corrugated soft rubber sheet (3110) is arranged at the upper end of the bottom soft rubber straight sheet (318), and a soft rubber spacer (3111) is arranged between adjacent bottom soft rubber straight sheets (318).

5. The vacuum pad combined with thermoplastic film fixing device for chest tumor radiotherapy according to claim 2, characterized in that: The shrinkage and orientation component (32) comprises a bottom plate (321) arranged at the lower end of the headrest (2); a middle groove (322) is provided in the middle of the upper end of the bottom plate (321); a middle block (323) is slidably connected in the inner wall of the middle groove (322); the middle block (323) is arranged at the lower end of the material storage pad (311); a side groove (329) is provided on the side of the bottom plate (321); sliding grooves (327) are provided on both sides of the middle block (323) and are opened at the upper end of the bottom plate (321); a rotating head (325) is slidably connected inside the sliding groove (327).

6. The vacuum pad combined with thermoplastic film fixing device for chest tumor radiotherapy according to claim 5, characterized in that: The upper end of the rotating head (325) is provided with a connecting strip (324), and the connecting strip (324) is connected to the lower end of the material storage pad (311).

7. The vacuum pad combined with thermoplastic film fixing device for chest tumor radiotherapy according to claim 5, characterized in that: An inner groove (328) is provided between the sliding grooves (327) on one side, the inner groove (328) is communicated with the adjacent sliding groove (327), a sliding bar (326) is slidably connected in the inner groove (328), and the sliding bar (326) is arranged at the lower end of the rotating head (325).

8. The vacuum pad combined with thermoplastic film fixing device for chest tumor radiotherapy according to claim 5, characterized in that: The film positioning assembly (33) comprises a fixed seat (331) arranged on the inner bottom wall of the side groove (329), and a film edge strip (334) arranged on the side of the thermoplastic film (1), the fixed seat (331) is slidably connected to a sliding seat (332), a clamping plate (333) is arranged on the side of the sliding seat (332) close to the headrest (2), an upper end groove (335) is opened at the upper end of the film edge strip (334), and the upper end groove (335) is arranged on the upper end of the film edge strip (334). 5) A T-shaped frame (336) is clamped inside, and the surface of the T-shaped frame (336) is in contact with the adjacent clamping plate (333); an L-shaped plate (3312) is arranged inside the membrane edge strip (334), and an inner plate (3311) is embedded in the surface of the T-shaped frame (336), and the lower end of the inner plate (3311) is in contact with the inner bottom of the L-shaped plate (3312), and the upper end of the inner plate (3311) is in contact with the lower end of the clamping plate (333).

9. The vacuum pad combined with thermoplastic film fixing device for chest tumor radiotherapy according to claim 8, characterized in that: Slideways (337) are provided on both sides of the fixed seat (331), and a slide bar (338) is fixedly provided inside the sliding seat (332), and the slide bar (338) is slidably connected inside the slide way (337).

10. The vacuum pad combined with thermoplastic film fixing device for chest tumor radiotherapy according to claim 8, characterized in that: A positioning hole (339) is provided at the upper end of the fixing seat (331), a positioning pin (3310) is inserted into the positioning hole (339), and the positioning pin (3310) is clamped on the inner side of the sliding seat (332).

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