U-shaped head film auxiliary device for fixed-point radiotherapy of children

Abstract

The utility model relates to a radiotherapy head film auxiliary device, belongs to the technical field of auxiliary instruments, and particularly relates to a child fixed-point radiotherapy U-shaped head film auxiliary device which comprises a fixing plate, a placing groove is formed in the fixing plate, a film body is arranged on the fixing plate, a connecting box is fixedly connected to the fixing plate, and the fixing plate is provided with a fixing groove. Through holes are formed in the fixing plate and the connecting box; according to the device, the adjusting assembly is matched with a limiting plate through a rotating column, a first gear, a second gear, a driving column, a driven column, a transmission belt, a connecting block, a rotary knob, a fixing frame, a two-way screw and the adjusting assembly, the two sides of a film body are folded and unfolded so as to adapt to children with different head types, the practicability of the device is improved, and the winding assembly is matched with a rotating rod, a coil spring, a ratchet wheel, a pawl and a spring; and the top of the film body is bound, so that the top of the film body can be conveniently rolled or loosened according to children with different head shapes, and the device is more convenient to operate and wider in application range.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary device technology, specifically a U-shaped scalp membrane auxiliary device for pediatric targeted radiotherapy. Background Technology

[0002] During radiotherapy, a U-shaped scalp membrane is needed to fix the child's head. Since different people have different head sizes, the size of the scalp membrane needs to be adjusted, which requires the use of a U-shaped scalp membrane auxiliary device.

[0003] Chinese patent CN216091918U discloses an adjustable body fixation membrane for radiotherapy, relating to the field of medical technology. The membrane includes a phantom body with multiple fixing blocks fixed to its outer edge. Each fixing block has two locking blocks at its top. A U-shaped frame is attached to the fixing blocks, with a baffle fixed to one open side of the U-shaped frame. Multiple sliding grooves (first and second) are formed at the top of the U-shaped frame, communicating with each other. This patent allows for a certain degree of tightness adjustment compared to conventional body membranes, improving the conformity of the fixation membrane, ensuring the repeatability, stability, and comfort of the radiotherapy patient's position, and guaranteeing effective fixation throughout the radiotherapy process.

[0004] In the above technical solution, the body membrane is adjusted to a certain extent by means of the slide groove and the locking block. However, due to the limited number of slide grooves, the adjustment of the body membrane is relatively limited, which reduces the practicality of the device.

[0005] Based on this, this application proposes a U-shaped cephalogram auxiliary device for targeted radiotherapy in children. Utility Model Content

[0006] To address the aforementioned technical problems, this invention proposes a U-shaped head membrane auxiliary device for pediatric targeted radiotherapy. The device can adjust the sides of the membrane using an adjustable component to accommodate children with different head shapes. The top of the membrane is secured using a winding component, allowing for winding or loosening according to head size, thereby improving the device's practicality.

[0007] The technical solution to achieve the purpose of this utility model is as follows: a U-shaped scalp membrane auxiliary device for pediatric targeted radiotherapy, comprising a fixing plate, a placement groove on the fixing plate, a membrane body on the fixing plate, a connecting box fixedly connected to the fixing plate, through holes on both the fixing plate and the connecting box, an adjustment assembly on the fixing plate, the adjustment assembly comprising a rotating column, a gear one, a gear two, a driving column, a driven column, and a transmission belt, the rotating column being rotatably connected inside the fixing plate, the gear one being fixedly connected to the rotating column, the gear two being rotatably connected inside the fixing plate, the gear one and gear two meshing, the driving column being fixedly connected to the gear two, the driven column being rotatably connected inside the fixing plate, the two sides of the membrane body being fixedly connected to the rotating column and the driven column respectively, the transmission belt being sleeved on the driving column and the driven column, and a winding assembly being provided inside the connecting box.

[0008] Preferably, the adjustment component includes a connecting block and a knob, the connecting block being fixedly connected to the rotating column, and the knob being fixedly connected to the connecting block.

[0009] Preferably, the adjustment assembly further includes a fixed frame, a bidirectional screw, and a limiting plate. The fixed frame is fixedly connected to the fixed plate, the bidirectional screw is rotatably connected to the fixed frame, and the two limiting plates are slidably connected inside the fixed frame. The two limiting plates are respectively threaded to both ends of the bidirectional screw.

[0010] Preferably, the winding assembly includes a rotating rod and a coil spring. The rotating rod is rotatably connected inside the connecting box, the top of the film is fixedly connected to the rotating rod, and the two ends of the coil spring are respectively fixedly connected to the rotating rod and the connecting box.

[0011] Preferably, the winding assembly further includes a ratchet and a pawl, the ratchet being fixedly connected to the rotating rod, and the pawl being rotatably connected to the connecting box, with the pawl engaging with the ratchet.

[0012] Preferably, the winding assembly further includes a spring, with both ends of the spring fixedly connected to the connecting box and the pawl, respectively.

[0013] Compared with existing technologies, the significant advantages of this invention are:

[0014] Firstly, in this utility model, the adjustment component, through the cooperation of a rotating column, gear one, gear two, driving column, driven column, transmission belt, connecting block, knob, fixing frame, bidirectional screw and limiting plate, can retract and extend both sides of the membrane to accommodate children with different head shapes, thus improving the practicality of the device.

[0015] Secondly, in this utility model, the winding assembly uses a rotating rod, coil spring, ratchet, pawl and spring to bind the top of the membrane, making it easy to wind or unwind the top of the membrane according to children with different head shapes, making the device more convenient to operate and more applicable. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal three-dimensional structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the winding assembly in this utility model;

[0020] Figure 4 This is a cross-sectional view of the internal structure of the fixed frame in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Fixing plate; 2. Placement slot; 3. Membrane body; 4. Connecting box; 5. Through hole; 6. Adjustment assembly; 61. Rotating column; 62. Gear 1; 63. Gear 2; 64. Driving column; 65. Driven column; 66. Transmission belt; 67. Connecting block; 68. Knob; 69. Fixing frame; 610. Bidirectional screw; 611. Limiting plate; 7. Winding assembly; 71. Rotating rod; 72. Coil spring; 73. Ratchet; 74. Pawl; 75. Spring. Detailed Implementation

[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0024] This utility model provides an improved U-shaped cephalometric device for targeted radiotherapy in children. The technical solution of this utility model is as follows:

[0025] like Figures 1-4As shown, a U-shaped scalp membrane auxiliary device for pediatric targeted radiotherapy includes a fixing plate 1 with a placement groove 2 for placing a child's head. A membrane 3 is mounted on the fixing plate 1, and a connecting box 4 is fixedly connected to it. Through holes 5 are provided on both sides of the fixing plate 1, and the connecting box 4 also has through holes 5. An adjustment assembly 6 is provided on the fixing plate 1, comprising a rotating column 61, a first gear 62, a second gear 63, a driving column 64, a driven column 65, and a transmission belt 66. The rotating column 61 is rotatably connected to the fixing plate 1, the first gear 62 is fixedly connected to the rotating column 61, and the second gear 63 is rotatably connected to the fixing plate 1. The first gear 62 meshes with the second gear 63, and the diameter of the first gear 62 is the same as the diameter of the second gear 63. Column 64 is fixedly connected to gear 63, so that the rotational speed of rotating column 61 is the same as the rotational speed of driving column 64. Driven column 65 is rotatably connected to fixed plate 1. Rotating column 61 and driven column 65 are symmetrical about placement groove 2. The two sides of membrane body 3 are fixedly connected to rotating column 61 and driven column 65 respectively. Transmission belt 66 is sleeved on driving column 64 and driven column 65. The diameter of driving column 64 is equal to the diameter of driven column 65. Under the action of transmission belt 66, the rotational speed of driving column 64 is the same as the rotational speed of driven column 65, that is, the rotational speed of rotating column 61 is the same as the rotational speed of driven column 65. The two sides of membrane body 3 are wound or unwound by rotating column 61 and driven column 65 to adapt to children with different head shapes. The connecting box 4 is equipped with winding assembly 7.

[0026] Furthermore, such as Figure 2 and Figure 4 As shown, the adjustment component 6 includes a connecting block 67 and a knob 68. The connecting block 67 is fixedly connected to the rotating column 61, and the diameter of the connecting block 67 is the same as the diameter of the rotating column 61. The knob 68 is fixedly connected to the connecting block 67.

[0027] Furthermore, such as Figure 2 and Figure 4 As shown, Figures 1-4 As shown, the adjustment assembly 6 also includes a fixed frame 69, a bidirectional screw 610, and a limiting plate 611. The fixed frame 69 is fixedly connected to the fixed plate 1. The cross-section of the fixed frame 69 is U-shaped. The bidirectional screw 610 is rotatably connected to the fixed frame 69. The two limiting plates 611 are slidably connected inside the fixed frame 69. The two limiting plates 611 are symmetrical about the connecting block 67. The two limiting plates 611 clamp the connecting block 67 and limit its movement. The two limiting plates 611 are threaded to both ends of the bidirectional screw 610.

[0028] Furthermore, such as Figure 2 and Figure 3As shown, the winding assembly 7 includes a rotating rod 71 and a coil spring 72. The rotating rod 71 is rotatably connected to the connecting box 4, and the top of the film body 3 is fixedly connected to the rotating rod 71. The rotating rod 71 is used to wind or unwind the top of the film body 3. The two ends of the coil spring 72 are fixedly connected to the rotating rod 71 and the connecting box 4, respectively.

[0029] Furthermore, such as Figures 2-4 As shown, the winding assembly 7 also includes a ratchet 73 and a pawl 74. The ratchet 73 is fixedly connected to the rotating rod 71, and the pawl 74 is rotatably connected to the connecting box 4. The pawl 74 is located on the side of the rotating rod 71 away from the coil spring 72. The pawl 74 meshes with the ratchet 73. By using the cooperation between the pawl 74 and the ratchet 73, when the two are engaged, the rotating rod 71 can only rotate in one direction, so that the top of the membrane 3 can only be relaxed and cannot be wound up. When it is necessary to wind up, the pawl 74 is rotated so that the two are no longer engaged, and the coil spring 72 can drive the rotating rod 71 to rotate and wind up the top of the membrane 3.

[0030] Furthermore, such as Figure 2 and Figure 3 As shown, the winding assembly 7 also includes a spring 75. The two ends of the spring 75 are fixedly connected to the connecting box 4 and the pawl 74, respectively. The spring 75 holds the pawl 74 so that the pawl 74 engages with the ratchet 73. When it is necessary to wind up the top of the film body 3, the pawl 74 is manually rotated so that the pawl 74 and the ratchet 73 are no longer engaged.

[0031] The specific working method is as follows: Place the child's head in the placement slot 2, with the face facing the membrane 3. When the membrane 3 is large, rotate the bidirectional screw 610. Since the limiting plate 611 is threaded to both ends of the bidirectional screw 610, the limiting plate 611 moves away from the connecting block 67 as the bidirectional screw 610 rotates, causing the two limiting plates 611 to move away from the connecting block 67. When the distance between the two limiting plates 611 is greater than the diameter of the rotating column 61, the connecting block 67 is no longer restricted by the limiting plate 611, and the knob 68 can be rotated to drive the connecting block 67 and the rotating column 61 to rotate. The gear 1 62 rotates accordingly. Since the gear 1 62 meshes with the gear 2 63, the gear 2 63 rotates accordingly, driving the drive column 64 to rotate, and the transmission belt 66... Under the action of the rotating rod 61, the driven column 65 is rotated, causing the rotating column 61 to rotate in the opposite direction to the driven column 65. This causes the membrane 3 to be rolled up on both sides, tightening it and fitting it to fit the child's head, thus limiting the child's head position. After adjustment, the pawl 74 is rotated, causing it to move away from the ratchet 73, and the two are no longer engaged. At this time, the rotating rod 71 rotates as the coil spring 72 returns to its original position, rolling up the top of the membrane 3, thus completely confining the head within the placement slot 2. When the membrane 3 is small, the above operation is repeated, using the rotating column 61 and the driven column 65 to loosen the sides of the membrane 3, making the sides of the membrane 3 longer. After the head is placed in the placement slot 2, a larger head will pull the top of the membrane 3 to loosen, making the top of the membrane 3 longer, thus adapting to the size of the head.

[0032] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A U-shaped scalp membrane auxiliary device for pediatric targeted radiotherapy, comprising a fixing plate (1), a placement groove (2) provided on the fixing plate (1), a membrane body (3) provided on the fixing plate (1), a connecting box (4) fixedly connected to the fixing plate (1), and through holes (5) provided on both the fixing plate (1) and the connecting box (4), characterized in that: An adjustment assembly (6) is provided on the fixed plate (1). The adjustment assembly (6) includes a rotating column (61), a gear one (62), a gear two (63), a driving column (64), a driven column (65), and a transmission belt (66). The rotating column (61) is rotatably connected to the fixed plate (1). The gear one (62) is fixedly connected to the rotating column (61). The gear two (63) is rotatably connected to the fixed plate (1). The gear one (62) and the gear two (63) mesh with each other. The driving column (64) is fixedly connected to the gear two (63). The driven column (65) is rotatably connected to the fixed plate (1). The two sides of the membrane (3) are fixedly connected to the rotating column (61) and the driven column (65) respectively. The transmission belt (66) is sleeved on the driving column (64) and the driven column (65). A winding assembly (7) is provided in the connecting box (4).

2. The U-shaped scalp membrane auxiliary device for pediatric targeted radiotherapy according to claim 1, characterized in that: The adjustment component (6) includes a connecting block (67) and a knob (68). The connecting block (67) is fixedly connected to the rotating column (61), and the knob (68) is fixedly connected to the connecting block (67).

3. The U-shaped scalp membrane auxiliary device for pediatric targeted radiotherapy according to claim 1, characterized in that: The adjustment assembly (6) further includes a fixed frame (69), a bidirectional screw (610), and a limiting plate (611). The fixed frame (69) is fixedly connected to the fixed plate (1), the bidirectional screw (610) is rotatably connected to the fixed frame (69), and the two limiting plates (611) are slidably connected inside the fixed frame (69). The two limiting plates (611) are respectively threaded to both ends of the bidirectional screw (610).

4. The U-shaped scalp membrane auxiliary device for pediatric targeted radiotherapy according to claim 1, characterized in that: The winding assembly (7) includes a rotating rod (71) and a coil spring (72). The rotating rod (71) is rotatably connected to the connecting box (4). The top of the film body (3) is fixedly connected to the rotating rod (71). The two ends of the coil spring (72) are fixedly connected to the rotating rod (71) and the connecting box (4) respectively.

5. The U-shaped scalp membrane auxiliary device for pediatric targeted radiotherapy according to claim 4, characterized in that: The winding assembly (7) also includes a ratchet (73) and a pawl (74). The ratchet (73) is fixedly connected to the rotating rod (71), and the pawl (74) is rotatably connected to the connecting box (4). The pawl (74) meshes with the ratchet (73).

6. The U-shaped scalp membrane auxiliary device for pediatric targeted radiotherapy according to claim 5, characterized in that: The winding assembly (7) also includes a spring (75), the two ends of which are fixedly connected to the connecting box (4) and the pawl (74) respectively.

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