Radiotherapy positioning device for oncology department

Abstract

The invention relates to the field of radiotherapy devices, in particular to a radiotherapy positioning device for the oncology department, which comprises a machine body and a concave seat, a radiotherapy probe is fixedly connected to one side, close to the concave seat, of the upper end of the machine body, sliding grooves are formed in two side walls of the concave seat, a bed body is arranged at the upper end of the concave seat, and two sides of the bed body are in sliding connection with the two sliding grooves respectively. One side of the concave seat is fixedly connected with a hydraulic cylinder; an output pipe of the hydraulic cylinder is fixedly connected with one end of the bed body; fixing plates are slidably connected to the two sides of the bed body, a moving mechanism is arranged between the two fixing plates, positioning mechanisms are arranged on the opposite sides of the two fixing plates, a through opening is formed in the upper surface of the end, away from the hydraulic cylinder, of the bed body, and a protection cylinder is inserted into the through opening. Meanwhile, when the patient feels nausea and wants to vomit in the radiotherapy process, the patient can directly vomit, the patient does not need to be forced, and radiotherapy of the patient is more convenient.

Description

Technical Field

[0001] This invention relates to the field of radiotherapy devices, specifically a radiotherapy positioning device for oncology. Background Technology

[0002] Tumor radiotherapy uses high-energy rays to kill cancer cells, thus treating tumors. Radiotherapy is an important method for treating malignant tumors, including preoperative radiotherapy, postoperative radiotherapy, radical radiotherapy, and intracavitary radiotherapy. 1. Preoperative radiotherapy: This refers to radiotherapy administered before surgery, generally starting about one month before the patient's operation. It primarily uses high-energy rays to kill cancer cells, achieving the therapeutic goal. 2. Postoperative radiotherapy: This refers to radiotherapy administered after surgery, generally about one month after the operation. It primarily uses high-energy rays to kill cancer cells and prevent their spread. 3. Radical radiotherapy: This refers to the complete elimination of malignant tumor cells through radiation, achieving the therapeutic goal. It is generally administered after surgery. 4. Intracavitary radiotherapy: This involves using a special device to directly insert radiation into the tumor cavity, where the biological effects of the radiation kill tumor cells. 5. Palliative radiotherapy: This refers to the treatment of certain advanced cancers with radiation, alleviating patient suffering and prolonging survival.

[0003] During radiotherapy, patients have a certain chance of experiencing nausea and vomiting. When patients feel uncomfortable, they tend to move their bodies involuntarily. When patients move their bodies, the rays emitted by the radiotherapy probe will deviate from the treatment position and irradiate healthy parts of the patient's body, causing damage to these healthy parts. At the same time, if nausea and vomiting are not treated in time, it will affect the effectiveness of the radiotherapy. Summary of the Invention

[0004] In response to the problem that patients may experience nausea and vomiting during radiotherapy, and that patients may involuntarily move their bodies when feeling uncomfortable, the radiation emitted by the radiotherapy probe may deviate from the treatment position and irradiate healthy parts of the patient's body, causing damage. In addition, if nausea and vomiting are not treated in time, it will affect the radiotherapy effect. This invention provides a radiotherapy positioning device for oncology.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: a radiotherapy positioning device for oncology, comprising a body and a recessed seat, wherein a radiotherapy probe is fixedly connected to the upper end of the body near the recessed seat, and sliding grooves are provided on both side walls of the recessed seat; a bed is provided at the upper end of the recessed seat, and the two sides of the bed are slidably connected to the two sliding grooves respectively; a hydraulic cylinder is fixedly connected to one side of the recessed seat, and the output pipe of the hydraulic cylinder is fixedly connected to one end of the bed; fixed plates are slidably connected to both sides of the bed, a moving mechanism is provided between the two fixed plates, and a positioning mechanism is provided on the opposite sides of the two fixed plates; the upper surface of the end of the bed away from the hydraulic cylinder... The device has an opening with a limiting block fixedly connected to its inner wall. A protective cylinder is inserted into the opening, with its top end contacting the bottom end of the limiting block. A collecting cylinder is fitted onto the bottom end of the protective cylinder. A connecting pipe is fixedly connected inside the protective cylinder, and the connecting pipe has a trapezoidal cross-section. A blocking mechanism is provided at the bottom outlet of the connecting pipe, and a reset mechanism is provided between the blocking mechanism and the outer wall of the connecting pipe. A flipping mechanism is provided on the outside of the protective cylinder, with one end of the flipping mechanism extending into the protective cylinder through an opening and corresponding to one side of the blocking mechanism. A pushing mechanism is provided on the outside of the bed, with the bottom end of the pushing mechanism corresponding to one side of the flipping mechanism.

[0006] Specifically, both positioning mechanisms include a mounting plate, positioning bolts, two connecting rods, two first springs, a clamping plate, a soft pad, and a baffle plate. One end of each connecting rod is fixedly connected to the clamping plate, and a soft pad is fixedly connected to one side of the clamping plate. The other end of each connecting rod is movably sleeved with a fixed plate and fixedly connected to the mounting plate. Two first springs are fixedly connected between the clamping plate and the fixed plate, and the two first springs are respectively sleeved around the two connecting rods. One end of the baffle plate is movably sleeved with the upper end of the mounting plate. A positioning bolt is threadedly connected to the top of the mounting plate, and the end of the positioning bolt is tightly fitted to the upper end of the baffle plate.

[0007] Specifically, the shielding mechanism includes a shield, a second recess, and a connecting block. The connecting block is fixedly connected to the outer wall of the bottom end of the pipe. The bottom end of the connecting block is rotatably connected to the recess of the second recess. The bottom end of the second recess is fixedly connected to the shield, and the shield fits against the opening of the bottom end of the pipe.

[0008] Specifically, the reset mechanism includes a telescopic rod, a sleeve block, and a third spring. The telescopic rod is fixedly connected to the bottom end of the through pipe. The telescopic rod is located on one side of the connecting block. The bottom end of the telescopic rod is tightly fitted to the upper side of the cover plate. A sleeve block is fixedly sleeved on the outside of the telescopic rod. A third spring is fixedly connected to the bottom end of the sleeve block. The third spring is sleeved around the telescopic rod. The bottom end of the third spring is in contact with the cover plate.

[0009] Specifically, the flipping mechanism includes a flip plate, a mounting block, a mounting screw, a rotating shaft, and a first recess. The mounting block is fixedly connected to the outside of the protective cylinder. The upper end of the mounting block is provided with a first recess. The bottom end of the first recess is connected to the mounting block by a mounting bolt. The upper recess of the first recess is rotatably connected to the flip plate by a rotating shaft. One end of the flip plate is inserted into the inside of the protective cylinder through a through-hole and fits against the bottom end of one side of the shield.

[0010] Specifically, the pushing mechanism includes a push rod, two fixed blocks, a second spring, a pressing block, and a pressing block. The two fixed blocks are fixedly connected to the outside of the bed. The push rod is movably sleeved with the two fixed blocks. A pressing block is fixedly connected to the top of the push rod. The bottom of the push rod is tightly fitted with the upper end of one side of the flip plate. A pressing block is fixedly sleeved on the outside of the push rod. The pressing block is located between the two fixed blocks. A second spring is fixedly connected between the pressing block and the corresponding fixed block. The second spring is sleeved around the push rod.

[0011] Specifically, a support block is fixedly connected to the upper edge of the opening.

[0012] Specifically, the outer side of the protective cylinder is threaded to the inside of the opening, and the inside of the collecting cylinder is threaded to the outer side of the bottom end of the protective cylinder.

[0013] Specifically, the moving mechanism includes a through groove, a connecting column, a rotating cylinder, several toothed plates, toothed assemblies, an inner groove, and several spring pieces. The through groove is located on the outer side of the bed, and both sides of the through groove are connected to the outer side of the bed. The connecting column is fixedly connected between two fixed plates and movably connected within the through groove. The connecting column is adapted to the through groove. An inner groove is provided inside the through groove. A rotating cylinder is rotatably connected to the outer side of the connecting column. The rotating cylinder is located inside the inner groove. Several toothed plates are fixedly connected to the outer side of the rotating cylinder. Toothed assemblies that mesh with the toothed plates are fixedly connected to the bottom wall of the inner groove. Several spring pieces are evenly fixed to the top wall of the inner groove. A gap is left between each pair of adjacent spring pieces, and the corresponding toothed plates are located between two adjacent spring pieces.

[0014] The beneficial effects of this invention are: (1) The radiotherapy positioning device for oncology described in this invention uses two clamping plates to clamp and position the patient on both sides. When the patient moves his body involuntarily from side to side due to nausea or other discomfort, one side of the patient will separate from the clamping plate. The clamping plate will move laterally by the restoring force of the first spring. When the clamping plate moves, it drives the shielding plate to move through the connecting rod and the mounting plate. The shielding plate shields the radiotherapy probe to prevent the radiotherapy rays from damaging the patient's healthy parts and to ensure the patient's health.

[0015] (2) The radiotherapy positioning device for oncology described in this invention, by pressing down the pressing block, the squeezing block will squeeze the second spring. During the downward movement of the push rod, it will squeeze the flap, which will rotate along the pivot. During the rotation of the flap, it will push the cover plate, causing the cover plate to flip. During the flip, the cover plate will squeeze the telescopic rod and the third spring. When the cover plate is completely separated from the bottom end of the tube, the patient can vomit into the opening. The vomit will enter the collection container through the tube, and the vomit will be collected in the collection container. After vomiting, the patient can release the pressing block, and the push rod will pass through the opening. The restoring force of the second spring moves upward, and the flap and the shield flip over due to the restoring force of the third spring. The shield then re-fits with the bottom end of the tube, preventing the irritating odor of vomit from affecting the patient. Later, rotating the mounting bolt will contact the connecting block between the first recess and the mounting block, thereby removing the flap. Then, rotating the collection tube and the protective tube will remove them from the opening, thus processing the vomit inside. When the patient feels nauseous during radiotherapy, they can vomit directly without having to force themselves to endure it, making it more convenient and easier for the patient to undergo radiotherapy. Attached Figure Description

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

[0017] Figure 1 This invention provides a schematic diagram of a radiotherapy positioning device for oncology. Figure 2 This invention provides a top view of the bed structure of a radiotherapy positioning device for oncology. Figure 3 This is a partial structural schematic diagram of a radiotherapy positioning device for oncology provided by the present invention; Figure 4 This invention provides a schematic diagram of the resetting mechanism and shielding mechanism of a radiotherapy positioning device for oncology. Figure 5 This is a schematic diagram of the flipping mechanism of a radiotherapy positioning device for oncology provided by the present invention; Figure 6 This invention provides a schematic diagram of the pushing mechanism of a radiotherapy positioning device for oncology. Figure 7 This is a schematic diagram of the positioning mechanism of a radiotherapy positioning device for oncology provided by the present invention; Figure 8 This is a schematic diagram of a recessed seat structure for a radiotherapy positioning device for oncology provided by the present invention; Figure 9 This is a schematic diagram of the moving mechanism structure of a radiotherapy positioning device for oncology provided by the present invention; Figure 10This invention provides a schematic diagram of the distribution of shrapnel in a radiotherapy positioning device for oncology. Figure 11 This is a schematic diagram of the tooth plate distribution of a radiotherapy positioning device for oncology provided by the present invention.

[0018] In the diagram: 1. Body; 2. Radiotherapy probe; 3. Recess; 4. Positioning mechanism; 41. Mounting plate; 42. Positioning bolt; 43. Connecting rod; 44. First spring; 45. Clamping plate; 46. Soft pad; 47. Cover plate; 5. Pushing mechanism; 51. Push rod; 52. Fixing block; 53. Second spring; 54. Squeezing block; 55. Pressing block; 6. Flipping mechanism; 61. Flip plate; 62. Mounting block; 63. Mounting bolt; 64. Rotating shaft; 65. First recess; 7. Covering mechanism; 71. Cover plate; 72. Second concave block; 73. Connecting block; 8. Reset mechanism; 81. Telescopic rod; 82. Sleeve block; 83. Third spring; 9. Hydraulic cylinder; 10. Bed; 11. Slide groove; 12. Fixing plate; 13. Through port; 14. Collection cylinder; 15. Support block; 16. Limiting block; 17. Protective cylinder; 18. Opening; 19. Through pipe; 20. Moving mechanism; 201. Through groove; 202. Connecting column; 203. Rotary cylinder; 204. Tooth plate; 205. Tooth assembly; 206. Inner groove; 207. Spring piece. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] like Figures 1-11As shown, the radiotherapy positioning device for oncology of the present invention includes a body 1 and a recess 3. A radiotherapy probe 2 is fixedly connected to the upper end of the body 1 near the recess 3. Sliding grooves 11 are provided on both side walls of the recess 3. A bed 10 is provided at the upper end of the recess 3. The two sides of the bed 10 are slidably connected to the two sliding grooves 11 respectively. A hydraulic cylinder 9 is fixedly connected to one side of the recess 3. The output pipe of the hydraulic cylinder 9 is fixedly connected to one end of the bed 10. Fixed plates 12 are slidably connected to both sides of the bed 10. A moving mechanism 20 is provided between the two fixed plates 12. A positioning mechanism 4 is provided on the opposite side of the two fixed plates 12. A through-hole 13 is provided on the upper surface of the end of the bed 10 away from the hydraulic cylinder 9. A limit block 16 is fixedly connected to the inner wall of the through-hole 13. A protective cylinder 17 is inserted into the through-hole 13. The top end of the protective cylinder 17 is connected to the bottom end of the limit block 16. The protective cylinder 17 has a collection cylinder 14 fitted at its bottom end. A through pipe 19 is fixedly connected inside the protective cylinder 17. The through pipe 19 has a trapezoidal cross-section. A shielding mechanism 7 is provided at the bottom outlet of the through pipe 19. A reset mechanism 8 is provided between the shielding mechanism 7 and the outer wall of the through pipe 19. A flipping mechanism 6 is provided on the outside of the protective cylinder 17. One end of the flipping mechanism 6 extends into the inside of the protective cylinder 17 through an opening 18 and corresponds to one side of the shielding mechanism 7. A pushing mechanism 5 is provided on the outside of the bed body 10. The bottom end of the pushing mechanism 5 corresponds to one side of the flipping mechanism 6. The radiotherapy probe 2 is shielded by the shielding plate 47 to prevent the radiotherapy rays from damaging the patient's healthy parts and to ensure the patient's health. At the same time, when the patient feels nauseous and wants to vomit during radiotherapy, he / she can vomit directly without having to force himself / herself to endure it, which is more convenient and facilitates the patient's radiotherapy.

[0021] Specifically, each of the two positioning mechanisms 4 includes a mounting plate 41, a positioning bolt 42, two connecting rods 43, two first springs 44, a clamping plate 45, a soft pad 46, and a shielding plate 47. One end of each of the two connecting rods 43 is fixedly connected to the clamping plate 45, and a soft pad 46 is fixedly connected to one side of the clamping plate 45. The other end of each of the two connecting rods 43 is movably sleeved with the fixing plate 12, and the other end of each of the two connecting rods 43 is fixedly connected to the mounting plate 41. Two first springs 44 are fixedly connected between the clamping plate 45 and the fixing plate 12, and the two first springs 44 are respectively sleeved around the two connecting rods 43. One end of the shielding plate 47 is movably sleeved with the upper end of the mounting plate 41, and a positioning bolt 42 is threadedly connected to the top of the mounting plate 41. The end of the positioning bolt 42 is tightly fitted with the upper end of the shielding plate 47. The patient presses against the two clamping plates... When the clamping plate 45 is pressed laterally, it will compress the first spring 44, and the mounting plate 41 will be pushed laterally by the connecting rod 43. Then, the two shielding plates 47 are moved according to the size of the radiotherapy site required by the patient, so that the gap between the two shielding plates 47 corresponds to the radiotherapy site of the patient. After adjustment, the shielding plates 47 are positioned by the positioning bolts 42. When the patient moves his body from side to side involuntarily due to nausea or other discomfort, one side of the patient will separate from the clamping plate 45. The clamping plate 45 will move laterally by the restoring force of the first spring 44. When the clamping plate 45 moves, the shielding plates 47 will move through the connecting rod 43 and the mounting plate 41. The shielding plates 47 will shield the radiotherapy probe 2 to prevent the radiotherapy rays from damaging the patient's healthy parts and ensure the patient's health.

[0022] Specifically, the shielding mechanism 7 includes a shield 71, a second recess 72, and a connecting block 73. The connecting block 73 is fixedly connected to the outer wall of the bottom end of the tube 19. The bottom end of the connecting block 73 is rotatably connected to the recess of the second recess 72. The shield 71 is fixedly connected to the bottom end of the second recess 72. The shield 71 is in contact with the bottom end of the tube 19. By flipping the shield 71, the shield 71 is separated from the bottom end of the tube 19, which allows the patient to vomit. When the shield 71 is in contact with the tube end of the tube 19, the tube 19 is sealed to prevent the vomit in the collection cylinder 14 from affecting the patient.

[0023] Specifically, the reset mechanism 8 includes a telescopic rod 81, a sleeve block 82, and a third spring 83. The telescopic rod 81 is fixedly connected to the bottom end of the tube 19 and is located on one side of the connecting block 73. The bottom end of the telescopic rod 81 is tightly fitted to one side of the upper end of the cover plate 71. The sleeve block 82 is fixedly sleeved on the outside of the telescopic rod 81. The bottom end of the sleeve block 82 is fixedly connected to the third spring 83. The third spring 83 is sleeved around the telescopic rod 81 and the bottom end of the third spring 83 is in contact with the cover plate 71. During the flipping process, the cover plate 71 will squeeze the telescopic rod 81 and the third spring 83. After vomiting is completed, the cover plate 71 will re-fit with the bottom end of the tube 19 through the restoring force of the third spring 83.

[0024] Specifically, the flipping mechanism 6 includes a flip plate 61, a mounting block 62, a mounting screw, a rotating shaft 64, and a first recess 65. The mounting block 62 is fixedly connected to the outside of the protective cylinder 17. The upper end of the mounting block 62 is provided with a first recess 65. The bottom end of the first recess 65 is connected to the mounting block 62 by a mounting bolt 63. The upper recess of the first recess 65 is rotatably connected to the flip plate 61 by the rotating shaft 64. One end of the flip plate 61 is inserted into the inside of the protective cylinder 17 through the through-hole 13 and fits against the bottom end of one side of the cover plate 71. When the push rod 51 moves down, it will squeeze the flip plate 61, and the flip plate 61 will rotate along the rotating shaft 64. Later, by rotating the mounting bolt 63, the first recess 65 can be contacted with the connecting block 73 of the mounting block 62, thereby removing the flip plate 61.

[0025] Specifically, the pushing mechanism 5 includes a push rod 51, two fixed blocks 52, a second spring 53, a squeezing block 54, and a pressing block 55. The two fixed blocks 52 are fixedly connected to the outside of the bed 10. The push rod 51 is movably sleeved with the two fixed blocks 52. The top of the push rod 51 is fixedly connected to the pressing block 55. The bottom of the push rod 51 is tightly fitted with the upper end of one side of the flip plate 61. The pressing block 55 is fixedly sleeved on the outside of the push rod 51. The pressing block 55 is located between the two fixed blocks 52. The pressing block 55 and the corresponding fixed block 52 are fixedly connected to the second spring 53. The second spring 53 is sleeved around the push rod 51. When the pressing block 55 is pressed down, the pressing block 55 drives the push rod 51 to move down. The squeezing block 54 will squeeze the second spring 53. During the downward movement, the push rod 51 will squeeze the flip plate 61. When the pressing block 55 is released later, the push rod 51 will move upward by the restoring force of the second spring 53.

[0026] Specifically, a support block 15 is fixedly connected to the upper edge of the opening 13. The support block 15 supports the patient's head and has a certain degree of softness, making the patient more comfortable.

[0027] Specifically, the outer side of the protective cylinder 17 is threaded to the inside of the opening 13, and the inside of the collection cylinder 14 is threaded to the outer side of the bottom end of the protective cylinder 17. By rotating the collection cylinder 14 and the protective cylinder 17, the protective cylinder 17 and the collection cylinder 17 can be removed from the opening 13, thus facilitating the treatment of the vomit inside the collection cylinder 14 and the protective cylinder 17.

[0028] Specifically, the moving mechanism 20 includes a through groove 201, a connecting column 202, a rotating cylinder 203, several toothed plates 204, toothed tooth sets 205, an inner groove 206, and several spring pieces 207. The through groove 201 is located on the outside of the bed body 10, and both sides of the through groove 201 are connected to the outside of the bed body 10. The connecting column 202 is fixedly connected between two fixed plates 12 and movably connected within the through groove 201. The connecting column 202 is adapted to the through groove 201. An inner groove 206 is provided inside the through groove 201. The rotating cylinder 203 is rotatably connected to the outside of the connecting column 202. The rotating cylinder 203 is located inside the inner groove 206. Several toothed plates 204 are fixedly connected to the outside of the rotating cylinder 203. Toothed tooth sets 205 that mesh with the toothed plates 204 are fixedly connected to the bottom wall of the inner groove 206. The top wall of the inner groove 206 is uniformly... Several spring pieces 207 are fixed, with gaps between adjacent spring pieces 207. The corresponding toothed plate 204 is located between adjacent spring pieces 207. When the fixing plate 12 is pushed with force according to the actual situation, the connecting column 202 moves when the two fixing plates 12 move laterally. Due to the cooperation between the toothed plate 204 and the tooth assembly 205, the rotating cylinder 203 will rotate. When the toothed plate 204 located between adjacent spring pieces 207 rotates with the rotating cylinder 203, it will squeeze the spring pieces 207 until the toothed plate 204 passes smoothly through the gap between the spring pieces 207. Therefore, when pushing the fixing plate 12, it is necessary to overcome the resistance of the spring pieces 207 to prevent the fixing plate 12 from moving arbitrarily. However, the fixing plate 12 can be moved freely according to different patients, so that the shielding plate 71 corresponds to the patient's radiotherapy site.

[0029] During use, when the patient lies face down on the upper part of the bed 10, with the patient's face corresponding to the opening 13, the patient's head is supported by the support block 15. The support block 15 has a certain degree of softness to make the patient more comfortable. During this process, the patient will squeeze the two clamping plates 45. When the clamping plates 45 move laterally, they will squeeze the first spring 44, and the connecting rod 43 will simultaneously push the mounting plate 41 to move laterally. Then, according to the size of the radiotherapy site required by the patient, the two shielding plates 47 are moved so that the two shielding plates 47 are aligned. The gap between 7 corresponds to the radiotherapy site of the patient. After adjustment, the shielding plate 47 is positioned by the positioning bolt 42. When the patient moves his body from side to side involuntarily due to nausea or other discomfort, one side of the patient will separate from the clamping plate 45. The clamping plate 45 will move laterally by the restoring force of the first spring 44. When the clamping plate 45 moves, it drives the shielding plate 47 to move through the connecting rod 43 and the mounting plate 41. The shielding plate 47 shields the radiotherapy probe 2 to prevent the radiotherapy rays from damaging the patient's healthy parts and to ensure the patient's health.When the patient experiences nausea and vomiting, they manually press down on the pressure block 55. The pressure block 55 moves the push rod 51 downwards, which in turn compresses the second spring 53 via the squeezing block 54. During its downward movement, the push rod 51 compresses the flap 61, causing it to rotate along the pivot 64. This rotation pushes the cover plate 71, causing it to flip. During this flipping, the cover plate 71 compresses the telescopic rod 81 and the third spring 83. Once the cover plate 71 is completely separated from the bottom of the tube 19, the patient can then apply pressure to the opening. 13. Vomiting occurs, and the vomit flows through the tube 19 into the collection container 14, where it is collected. After vomiting, the patient can release the pressure block 55. The push rod 51 moves upward due to the restoring force of the second spring 53, and the flip plate 61 and the cover plate 71 flip over due to the restoring force of the third spring 83. The cover plate 71 then re-fits against the bottom end of the tube 19 to prevent the irritating odor of the vomit from affecting the patient. Later, rotating the mounting bolt 63 will engage the connecting block 73 between the first recess 65 and the mounting block 62. This allows the flap 61 to be removed. Then, by rotating the collection cylinder 14 and protective cylinder 17, they can be removed from the opening 13, thus processing the vomit inside. Patients experiencing nausea during radiotherapy can vomit directly without having to suppress it, making radiotherapy more convenient. The springs, shaft 64, and bolts are all made of non-metallic materials. Simultaneously, by pushing the fixing plate 12 according to the actual situation, the two fixing plates 12 move laterally, driving the connecting column. 202. Due to the cooperation between the toothed plate 204 and the tooth assembly 205, the rotating cylinder 203 will rotate. As the rotating cylinder 203 rotates, the toothed plate 204, located between two adjacent spring pieces 207, will compress the spring pieces 207 until the toothed plate 204 smoothly passes through the gap between the spring pieces 207. Therefore, when pushing the fixation plate 12, it is necessary to overcome the resistance of the spring pieces 207 to prevent the fixation plate 12 from moving arbitrarily. However, depending on the patient, the fixation plate 12 can be moved freely, so that the shielding plate 71 corresponds to the patient's radiotherapy site.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A radiotherapy positioning device for oncology, comprising a body (1) and a recess (3), characterized in that: A radiotherapy probe (2) is fixedly connected to the upper end of the body (1) near the recess (3). Slide grooves (11) are provided on both sides of the recess (3). A bed (10) is provided at the upper end of the recess (3). The two sides of the bed (10) are slidably connected to the two slide grooves (11) respectively. A hydraulic cylinder (9) is fixedly connected to one side of the recess (3). The output pipe of the hydraulic cylinder (9) is fixedly connected to one end of the bed (10). Fixed plates (12) are slidably connected to both sides of the bed (10). A moving mechanism (20) is provided between the two fixed plates (12). A positioning mechanism (4) is provided on the opposite side of the two fixed plates (12). A through-hole (13) is provided on the upper surface of the end of the bed (10) away from the hydraulic cylinder (9). A limit block (16) is fixedly connected to the inner wall of the through-hole (13). A protective cylinder (17) is inserted into the opening (13). The top of the protective cylinder (17) is in contact with the bottom of the limiting block (16). A collection cylinder (14) is fitted at the bottom of the protective cylinder (17). A through pipe (19) is fixedly connected inside the protective cylinder (17). The cross-section of the through pipe (19) is trapezoidal. A blocking mechanism (7) is provided at the bottom outlet of the through pipe (19). A reset mechanism (8) is provided between the blocking mechanism (7) and the outer wall of the through pipe (19). A flipping mechanism (6) is provided on the outside of the protective cylinder (17). One end of the flipping mechanism (6) extends into the inside of the protective cylinder (17) through the opening (18) and corresponds to one side of the blocking mechanism (7). A pushing mechanism (5) is provided on the outside of the bed body (10). The bottom of the pushing mechanism (5) corresponds to one side of the flipping mechanism (6).

2. The radiotherapy positioning device for oncology according to claim 1, characterized in that: Both positioning mechanisms (4) include a mounting plate (41), positioning bolts (42), two connecting rods (43), two first springs (44), a clamping plate (45), a soft pad (46), and a baffle plate (47). One end of each of the two connecting rods (43) is fixedly connected to the clamping plate (45), and a soft pad (46) is fixedly connected to one side of the clamping plate (45). The other end of each of the two connecting rods (43) is movably sleeved with a fixing plate (12). 3) The other end is fixedly connected to the mounting plate (41). Two first springs (44) are fixedly connected between the clamping plate (45) and the fixing plate (12). The two first springs (44) are respectively sleeved around the two connecting rods (43). One end of the shielding plate (47) is movably sleeved with the upper end of the mounting plate (41). The top end of the mounting plate (41) is threaded with a positioning bolt (42). The rod wall end of the positioning bolt (42) is tightly fitted with the upper end of the shielding plate (47).

3. The radiotherapy positioning device for oncology according to claim 1, characterized in that: The shielding mechanism (7) includes a shield (71), a second recess (72) and a connecting block (73). The connecting block (73) is fixedly connected to the outer wall of the bottom end of the through pipe (19). The bottom end of the connecting block (73) is rotatably connected to the recess of the second recess (72). The bottom end of the second recess (72) is fixedly connected to the shield (71). The shield (71) is in contact with the bottom end of the through pipe (19).

4. The radiotherapy positioning device for oncology according to claim 1, characterized in that: The reset mechanism (8) includes a telescopic rod (81), a sleeve block (82), and a third spring (83). The telescopic rod (81) is fixedly connected to the bottom end of the through pipe (19). The telescopic rod (81) is located on one side of the connecting block (73). The bottom end of the telescopic rod (81) is tightly fitted to one side of the upper end of the cover plate (71). The sleeve block (82) is fixedly sleeved on the outside of the telescopic rod (81). The bottom end of the sleeve block (82) is fixedly connected to the third spring (83). The third spring (83) is sleeved around the telescopic rod (81). The bottom end of the third spring (83) is in contact with the cover plate (71).

5. A radiotherapy positioning device for oncology according to claim 1, characterized in that: The flipping mechanism (6) includes a flip plate (61), a mounting block (62), a mounting screw, a rotating shaft (64), and a first recess (65). The mounting block (62) is fixedly connected to the outside of the protective cylinder (17). The upper end of the mounting block (62) is provided with a first recess (65). The bottom end of the first recess (65) is connected to the mounting block (62) by a mounting bolt (63). The upper recess of the first recess (65) is rotatably connected to the flip plate (61) by a rotating shaft (64). One end of the flip plate (61) is inserted into the inside of the protective cylinder (17) through a through-hole (13) and fits against the bottom end of one side of the shield (71).

6. The radiotherapy positioning device for oncology according to claim 1, characterized in that: The pushing mechanism (5) includes a push rod (51), two fixed blocks (52), a second spring (53), a squeezing block (54), and a pressing block (55). The two fixed blocks (52) are fixedly connected to the outside of the bed body (10). The push rod (51) is movably sleeved with the two fixed blocks (52). The top end of the push rod (51) is fixedly connected with the pressing block (55). The bottom end of the push rod (51) is tightly fitted with the upper end of one side of the flip plate (61). The outside of the push rod (51) is fixedly sleeved with the pressing block (55). The pressing block (55) is located between the two fixed blocks (52). The pressing block (55) is fixedly connected to the corresponding fixed block (52) with the second spring (53). The second spring (53) is sleeved around the push rod (51).

7. The radiotherapy positioning device for oncology according to claim 1, characterized in that: A support block (15) is fixedly connected to the upper edge of the opening (13).

8. A radiotherapy positioning device for oncology according to claim 1, characterized in that: The outer side of the protective cylinder (17) is threaded to the inside of the opening (13), and the inside of the collecting cylinder (14) is threaded to the outer side of the bottom end of the protective cylinder (17).

9. A radiotherapy positioning device for oncology according to claim 1, characterized in that: The moving mechanism (20) includes a through groove (201), a connecting column (202), a rotating cylinder (203), several toothed plates (204), a toothed set (205), an inner groove (206), and several spring pieces (207). The through groove (201) is located on the outside of the bed (10), and both sides of the through groove (201) are connected to the outside of the bed (10). The connecting column (202) is fixedly connected between two fixed plates (12), and the connecting column (202) is movably connected in the through groove (201). The connecting column (202) is adapted to the through groove (201). 01) An inner groove (206) is provided inside. A rotating cylinder (203) is rotatably connected to the outside of the connecting column (202). The rotating cylinder (203) is located inside the inner groove (206). Several toothed plates (204) are fixedly connected to the outside of the rotating cylinder (203). A toothed set (205) that meshes with the toothed plates (204) is fixedly connected to the bottom wall of the inner groove (206). Several spring pieces (207) are evenly fixed on the top wall of the inner groove (206). There is a gap between two adjacent spring pieces (207). The toothed plates (204) are located between two adjacent spring pieces (207).

Images