Leg fixing structure for radiotherapy

Abstract

The utility model discloses a leg fixing structure for radiotherapy, which relates to the technical field of leg fixing and comprises a base, two threaded rods are rotatably arranged in the base and are symmetrically arranged along the center line of the base, a belt is arranged on the outer surface of one side of each threaded rod, a rotating wheel is arranged in the middle of each belt, and the rotating wheels are arranged on the rotating wheels. The belt is located in the base, a rotary knob is fixedly arranged on one side of the rotating wheel, the rotary knob is rotationally connected with the base, and an internal thread block is arranged on the outer surface of the base in a meshed mode. Compared with an existing common leg fixing structure, the leg fixing structure for radiotherapy has the advantages that after legs of a patient are fixed on the device, when a knob is rotated, threaded rods on two sides can be driven by a belt, so that the position of an internal threaded block can be changed, and the position of the legs of the patient can be conveniently adjusted before treatment; the comfort of a patient can be guaranteed to a certain extent, and the affected part can be conveniently aligned with an instrument.

Description

Technical Field

[0001] The utility model relates to the technical field of leg fixation, in particular to a leg fixation structure for radiotherapy. Background Art

[0002] During radiotherapy, the rays can be precisely positioned. Therefore, whether radiotherapy can be successfully completed is directly related to whether the patient can maintain an unchanged body position and body stability. If the patient moves slightly, the irradiation position may be shifted, reducing the effect of radiotherapy and is likely to damage normal cells.

[0003] As disclosed in application number 202022026228.1, the utility model discloses a leg fixation device for tumor radiotherapy, comprising a support and fixing base, a leg fastening assembly, and a limiting threaded post. The support and fixing base comprises a base plate and a side baffle disposed perpendicularly to one side of the base plate. The side baffles are symmetrically provided with through-slots on their sides, and a threaded hole is provided at the top thereof, which is connected to the through-slots. The leg fastening assembly is disposed correspondingly to the through-slots, and comprises a clamping member disposed on the base plate and a flexible plate having one end not connected to the clamping member and the other end extending through the through-slots, and surrounding the base plate and the side baffles to form a leg fastening slot with adjustable caliber. The outer wall of the flexible plate is provided with multiple limiting slots. The limiting threaded post is screwed into the threaded hole, and its bottom end is inserted into the limiting slot on the flexible plate located within the through-slots. This leg fixation device for tumor radiotherapy is suitable for different patient leg shapes and can fix the patient's leg without causing leg movement, thereby improving the effect of radiotherapy. However, the leg fixing structure is not convenient for improving the comfort of the legs when fixing the legs, is not convenient for improving the comfort of patients with different leg shapes, and is not convenient for moving the device after fixation.

[0004] Therefore, in view of this, the shortcomings of the existing structure are studied and improved, and a leg fixation structure for radiotherapy is proposed. Utility Model Content

[0005] The purpose of the present invention is to provide a leg fixing structure for radiotherapy to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a leg fixing structure for radiotherapy, comprising a base, a threaded rod rotatably provided inside the base, and two threaded rods are symmetrically provided along the center line of the base, a belt is provided on the outer surface of one side of the threaded rod, and a pulley is provided in the middle of the belt, the belt is located inside the base, and a knob is fixedly provided on one side of the pulley.

[0007] Preferably, the knob is rotatably connected to the base, an internal thread block is engaged with the outer surface of the base, and the internal thread block is slidably connected to the base at the same time, a mounting seat is fixedly provided on the opposite side of the internal thread block, and a slot is provided on one side of the mounting seat.

[0008] Preferably, a spring 1 is provided on the other side of the slot, and the spring 1 is located inside the mounting seat, and one end of the spring 1 is fixedly connected to the mounting seat, and a limit block is fixedly provided on the other end of the spring 1, and the limit block is also slidably connected to the mounting seat.

[0009] Preferably, a pad is slidably provided inside the mounting seat, and one side of the pad is engaged with the slot, and the other end of the pad is simultaneously slidably connected to the limit block, and a strap is fixedly provided on one side of the mounting seat.

[0010] Preferably, two straps are symmetrically arranged along the center line of the base, a through hole is opened on the strap, and a mounting block is provided on the other side of the strap, the mounting block is fixedly connected to the mounting seat, and the other end of the strap is slidably connected to the mounting block and passes through the inside of the mounting block.

[0011] Preferably, a spring 2 is fixedly provided on one side of the interior of the mounting block, and a gear 1 is fixedly provided on the other end of the spring 2, the gear 1 is slidingly connected to the mounting block, and a tooth groove is provided inside the mounting block on the outside of the gear 1, and the gear 1 is engaged with the tooth groove.

[0012] Preferably, a connecting rod is fixedly provided at the other end of the gear one, and the connecting rod is arranged in a cross shape. A gear two is slidingly provided on the outer surface of the connecting rod, and the gear two is rotatably connected to the mounting block, and the gear two is engaged with the strap at the same time.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is equipped with a base, threaded rods, belts, rotating wheels, knobs, and internal threaded blocks. After the patient's legs are fixed to the device, turning the knobs can drive the threaded rods on both sides through the belts, thereby changing the position of the internal threaded blocks. This makes it easy to adjust the position of the patient's legs before treatment, thereby ensuring patient comfort to a certain extent and making it easier to align the affected area with the instrument.

[0015] 2. The utility model is provided with a mounting seat, a card slot, a spring, a limit block and a pad. Before fixing the patient's leg, a suitable pad is selected according to the patient's body shape and the shape of the patient's leg. When installing the pad, one side of the pad is first inserted into the mounting seat and engaged with the card slot, and then the other end is pressed down. As the mounting seat moves downward, the limit block enters the hole on one side of the pad under the action of the spring, so that it can be fixed. When disassembling, it can be directly pulled out, thereby ensuring the patient's comfort, improving the convenience during use, and speeding up work efficiency.

[0016] 3. The utility model is provided with a strap, a through hole, a mounting block, a second spring, a gear one, a connecting rod and a second gear. After the strap is passed over the patient's leg, it passes through the mounting block, and then the connecting rod is pressed so that the gear one does not mesh with the gear one. In this way, the connecting rod can drive the gear two to rotate, so that the gear two tightens the strap. After the adjustment is completed, the gear one is reset under the action of the second spring. At this time, the gear two cannot rotate, so the patient's leg can be fixed, thereby speeding up the work efficiency. In addition, the setting of the strap can avoid excessive pressure and unnecessary compression on the patient's legs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0020] Figure 4 For this utility model Figure 2 The enlarged structural diagram at B in the middle;

[0021] Figure 5 This is a schematic diagram of the overall rear-view stereoscopic structure of the utility model;

[0022] Figure 6 For this utility model Figure 5 Enlarged structural diagram at point C in the middle.

[0023] In the figure: 1. Base; 2. Threaded rod; 3. Belt; 4. Rotating wheel; 5. Knob; 6. Internal thread block; 7. Mounting seat; 8. Slot; 9. Spring 1; 10. Limit block; 11. Pad; 12. Strap; 13. Through hole; 14. Mounting block; 15. Spring 2; 16. Gear 1; 17. Connecting rod; 18. Gear 2. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1-Figure 3 As shown, a leg fixation structure for radiotherapy includes a base 1, a threaded rod 2 is rotatably provided inside the base 1, and two threaded rods 2 are symmetrically provided along the center line of the base 1. A belt 3 is provided on the outer surface of one side of the threaded rod 2, and a rotating wheel 4 is provided in the middle of the belt 3. The belt 3 is located inside the base 1, and a knob 5 is fixedly provided on one side of the rotating wheel 4. After the patient's leg is fixed to the device, when the knob 5 is turned, the threaded rods 2 on both sides can be driven by the belt 3, so that the position of the internal thread block 6 can be changed, thereby facilitating the position adjustment of the patient's leg before treatment, thereby ensuring the patient's comfort to a certain extent and facilitating the alignment of the affected area with the instrument;

[0026] Furthermore, the diameter of the rotating wheel 4 is larger than the outer diameter of the threaded rod 2 , so that the belt 3 can always fit on the surface of the rotating wheel 4 .

[0027] like Figure 2 、 Figure 4-Figure 6As shown, the knob 5 is rotatably connected to the base 1, and the outer surface of the base 1 is meshed with an internal thread block 6, and the internal thread block 6 is simultaneously slidably connected to the base 1, and a mounting seat 7 is fixedly provided on the opposite side of the internal thread block 6, and a card slot 8 is provided on one side of the mounting seat 7, and a spring 9 is provided on the other side of the card slot 8, and the spring 9 is located inside the mounting seat 7, and one end thereof is fixedly connected to the mounting seat 7, and the other end of the spring 9 is fixedly provided with a limit block 10, and the limit block 10 is simultaneously slidably connected to the mounting seat 7, and a pad 11 is provided inside the mounting seat 7 for sliding, and one side of the pad 11 is meshed with the card slot 8, and the other end of the pad 11 is simultaneously engaged with the limit The block 10 is slidably connected, and a strap 12 is fixedly provided on one side of the mounting seat 7. Two straps 12 are symmetrically provided along the center line of the base 1. A through hole 13 is provided on the strap 12, and a mounting block 14 is provided on the other side of the strap 12. The mounting block 14 is fixedly connected to the mounting seat 7. The other end of the strap 12 is slidably connected to the mounting block 14 and passes through the inside of the mounting block 14. A spring 2 15 is fixedly provided on one side of the interior of the mounting block 14, and a gear 16 is fixedly provided on the other end of the spring 2 15. The gear 16 is slidably connected to the mounting block 14, and a tooth groove is provided on the outside of the gear 16 inside the mounting block 14. The gear 16 is connected to the mounting block 14. The teeth and grooves are engaged, and the other end of the gear 16 is fixedly provided with a connecting rod 17, and the connecting rod 17 is arranged in a cross shape. The outer surface of the connecting rod 17 is slidably provided with a gear 2 18, and the gear 2 18 is rotatably connected to the mounting block 14, and the gear 2 18 is engaged with the strap 12 at the same time. Before fixing the patient's legs, select a suitable pad 11 according to the patient's body shape and the shape of the patient's legs. When installing the pad 11, first insert one side of it into the mounting seat 7 and engage with the card slot 8, and then press the other end. As the mounting seat 7 moves downward, the limit block 10 enters the hole on one side of the pad 11 under the action of the spring 1 9, so that it can be fixed, and when disassembling, directly It can be pulled out, thereby ensuring the patient's comfort, improving convenience during use, and speeding up work efficiency; after the strap 12 passes over the patient's legs, it passes through the mounting block 14, and then the connecting rod 17 is pressed to make gear 1 16 not mesh with gear 1 16, so that gear 2 18 can be driven to rotate by the connecting rod 17, so that gear 2 18 tightens the strap 12. After the adjustment is completed, gear 1 16 is reset under the action of spring 2 15. At this time, gear 2 18 cannot rotate, so the patient's legs can be fixed, thereby speeding up work efficiency. In addition, the setting of the strap 12 can avoid excessive pressure and unnecessary compression on the patient's legs.

[0028] Furthermore, the side of the pad 11 close to the patient's leg is made of sponge, which can improve the patient's comfort, while the side located inside the mounting seat 7 is made of plastic, which is convenient for cooperating with the limit block 10 to fix the pad 11.

[0029] Furthermore, the strap 12 has a certain elasticity and cannot completely fix the patient's legs. The legs still have a certain amount of room to move inside the strap 12, so that the patient's legs are prevented from being compressed while ensuring the fixing effect.

[0030] Working principle: When using the leg fixation structure for radiotherapy, first, after the patient's legs are fixed on the device, when the knob 5 is turned, the threaded rods 2 on both sides can be driven by the belt 3, so that the position of the internal thread block 6 can be changed, so that the position of the patient's legs can be adjusted before treatment, thereby ensuring the patient's comfort to a certain extent and aligning the affected part with the instrument; secondly, before fixing the patient's legs, select a suitable pad 11 according to the patient's body shape and the shape of the affected leg. When installing the pad 11, first insert one side of it into the mounting seat 7 and engage with the slot 8, and then press the other end. As the mounting seat 7 moves downward, the limit block 10 enters one side of the pad 11 under the action of the spring 9. The strap 12 is inserted into the hole, so that it can be fixed, and when it is disassembled, it can be directly pulled out, thereby ensuring the comfort of the patient, improving the convenience during use, and speeding up work efficiency; finally, the strap 12 is passed over the patient's leg and passed through the mounting block 14, and then the connecting rod 17 is pressed to make the gear 16 not mesh with the gear 16, so that the connecting rod 17 can drive the gear 2 18 to rotate, so that the gear 2 18 can tighten the strap 12. After the adjustment is completed, the gear 16 is reset under the action of the spring 2 15. At this time, the gear 2 18 cannot rotate, so that the patient's leg can be fixed, thereby speeding up work efficiency. The setting of the strap 12 can avoid excessive pressure and unnecessary compression on the patient's leg. This is the working principle of the leg fixation structure for radiotherapy.

Claims

1. A leg fixing structure for radiotherapy, comprising a base (1), characterized in that: A threaded rod (2) is rotatably provided inside the base (1), and two threaded rods (2) are symmetrically provided along the center line of the base (1); a belt (3) is provided on the outer surface of one side of the threaded rod (2), and a rotating wheel (4) is provided in the middle of the belt (3); the belt (3) is located inside the base (1), and a knob (5) is fixedly provided on one side of the rotating wheel (4).

2. A leg fixation structure for radiotherapy according to claim 1, characterized in that: The knob (5) is rotatably connected to the base (1); an internal thread block (6) is meshedly provided on the outer surface of the base (1); and the internal thread block (6) is slidably connected to the base (1); a mounting seat (7) is fixedly provided on the opposite side of the internal thread block (6), and a slot (8) is provided on one side of the mounting seat (7).

3. The leg fixation structure for radiotherapy according to claim 2, characterized in that: The other side of the slot (8) is provided with a spring (9), and the spring (9) is located inside the mounting seat (7), and one end of the spring (9) is fixedly connected to the mounting seat (7), and the other end of the spring (9) is fixedly provided with a limit block (10), and the limit block (10) is also slidably connected to the mounting seat (7).

4. The leg fixation structure for radiotherapy according to claim 3, characterized in that: A pad (11) is slidably provided inside the mounting seat (7), and one side of the pad (11) is engaged with the card slot (8), and the other end of the pad (11) is simultaneously slidably connected to the limit block (10), and a strap (12) is fixedly provided on one side of the mounting seat (7).

5. The leg fixation structure for radiotherapy according to claim 4, characterized in that: Two of the straps (12) are symmetrically arranged along the center line of the base (1), a through hole (13) is opened on the strap (12), and a mounting block (14) is arranged on the other side of the strap (12), the mounting block (14) is fixedly connected to the mounting seat (7), and the other end of the strap (12) is slidably connected to the mounting block (14) and passes through the interior of the mounting block (14).

6. The leg fixation structure for radiotherapy according to claim 5, characterized in that: A spring 2 (15) is fixedly provided on one side of the interior of the mounting block (14), and a gear 1 (16) is fixedly provided on the other end of the spring 2 (15), the gear 1 (16) is slidably connected to the mounting block (14), and a tooth groove is provided inside the mounting block (14) on the outside of the gear 1 (16), and the gear 1 (16) is meshed with the tooth groove.

7. The leg fixation structure for radiotherapy according to claim 6, characterized in that: The other end of the gear 1 (16) is fixedly provided with a connecting rod (17), and the connecting rod (17) is arranged in a cross shape. The outer surface of the connecting rod (17) is slidably provided with a gear 2 (18), and the gear 2 (18) is rotatably connected to the mounting block (14), and the gear 2 (18) is engaged with the strap (12) at the same time.

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