Automatic positioning device for tumor radiotherapy

Abstract

The present application relates to the field of tumor radiotherapy. Disclosed is an automatic positioning device for tumor radiotherapy, the automatic positioning device comprising an electric sliding table and a radiotherapy instrument, wherein a U-shaped support is slidably connected to the inner wall of the electric sliding table, and a lying plate is fixedly connected to the top of the U-shaped support; a transverse hinged plate mechanism is provided on the U-shaped support, and is unfolded for supporting along the left and right sides of the lying plate in a hinged manner, thereby assisting obese patients; and a longitudinal hinged plate mechanism is provided on the lying plate, and is unfolded for supporting along the bottom of the lying plate in a hinged manner, thereby assisting patients with a relatively tall stature and improving the supporting strength and comfort. In the present invention, by means of providing a pushing plate mechanism, when the lying plate moves towards the radiotherapy instrument, the position of scapulas of a patient is automatically calibrated, such that the patient is in the center of the lying plate, thereby solving the problem of a patient being prone to deviate from the central line during conventional radiotherapy, ensuring accurate radiation on tumors, and reducing damage to normal tissue.

Description

Automatic positioning device for tumor radiotherapy treatment TECHNICAL FIELD

[0001] The present application relates to the technical field of tumor radiotherapy treatment, in particular to an automatic positioning device for tumor radiotherapy treatment. BACKGROUND

[0002] Tumor radiotherapy is one of the important means of cancer treatment, which accurately destroys tumor cells through high-energy rays to achieve the purpose of treatment.

[0003] The common tumor radiotherapy device is usually equipped with an electric sliding table and a radiotherapy instrument. First, the patient is laid flat on the top of the electric sliding table, and then the electric sliding table is started to move the patient to the lower side of the radiotherapy instrument, and then the radiotherapy instrument is used to perform radiotherapy on the patient below.

[0004] However, in actual use, it is difficult to ensure that the patient is in the center line position of the electric sliding table when lying on the top of the electric sliding table. This causes the radiotherapy instrument to deviate from the tumor treatment position after the electric sliding table moves the patient to the lower side of the radiotherapy instrument. Once this deviation occurs, not only the tumor cells cannot be irradiated with sufficient doses of rays, resulting in a significant reduction in treatment effect, but also unnecessary damage to the surrounding normal tissues may occur, leading to more complications and seriously affecting the patient's rehabilitation process. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides an automatic positioning device for tumor radiotherapy treatment, which solves the problem that the patient is easy to deviate from the center line when lying on the top of the electric sliding table during tumor radiotherapy treatment, resulting in the radiotherapy instrument being unable to accurately align with the tumor.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme: an automatic positioning device for tumor radiotherapy treatment, comprising an electric sliding table and a radiotherapy instrument, the inner wall of the electric sliding table is slidably connected with a concave frame, the top of the concave frame is fixedly connected with a lying plate;

[0007] A horizontal hinged plate mechanism is arranged on the concave frame, which is expanded and supported along the left and right sides of the lying plate by hinging;

[0008] A vertical hinged plate mechanism is arranged on the lying plate, which is expanded and supported along the bottom of the lying plate by hinging;

[0009] A pushing plate mechanism is arranged at the bottom of the electric sliding table, which automatically pushes the scapula position of the patient inward to calibrate when the lying plate moves in the direction of the radiotherapy instrument along the electric sliding table, so that the patient is located at the center position of the lying plate.

[0010] Preferably, the transverse hinged plate mechanism comprises a threaded rod A, the top of the threaded rod A is rotatably connected with the bottom of the lying plate, the middle outer wall of the threaded rod A penetrates through the inner wall of the concave frame and is rotatably connected, the outer wall of the threaded rod A is threadedly connected with a moving block A, the outer wall of the moving block A is hingedly connected with a transverse connecting rod, the outer wall of the transverse connecting rod is hingedly connected with a horizontal plate, and the inner wall of the horizontal plate is hingedly connected with the inner wall of the lying plate through a hinge piece.

[0011] Preferably, the longitudinal hinged plate mechanism comprises a threaded rod B, the top of the threaded rod B is rotatably connected with the bottom of the lying plate, the outer wall of the threaded rod B is threadedly connected with a moving block B, the outer wall of the moving block B is hingedly connected with a vertical connecting rod, the top of the vertical connecting rod is hingedly connected with a vertical plate, and the inner wall of the vertical plate is hingedly connected with the inner wall of the lying plate through a hinge piece.

[0012] Preferably, the bottom of the threaded rod B is fixedly connected with a chain wheel A, the bottom of the concave frame is rotatably connected with a sleeve, the middle outer wall of the sleeve is fixedly connected with a chain wheel B, and the outer wall of the chain wheel A is in transmission connection with the outer wall of the chain wheel B through a chain.

[0013] Preferably, the bottom of the sleeve is provided with a clamping groove, the bottom of the threaded rod A is fixedly connected with an inner rod, the outer wall of the inner rod is fixedly connected with a sliding block, the outer wall of the inner rod is slidingly connected with an outer rod, the inner wall of the outer rod is provided with a rectangular groove, and the inner wall of the rectangular groove is slidingly connected with the outer wall of the sliding block.

[0014] Preferably, one end of the inner rod is fixedly connected with a spring, the other end of the spring is fixedly connected with the inner wall of the outer rod, the outer wall of the outer rod is fixedly connected with a clamping block, and the outer wall of the clamping block is inserted into the inner wall of the clamping groove.

[0015] Preferably, the pushing plate mechanism comprises a sliding rail, the top of the sliding rail is fixedly connected with the bottom of the electric sliding table, and the inner wall of the sliding rail is slidingly connected with a rectangular shell.

[0016] Preferably, the outer wall of the rectangular shell is slidingly connected with a moving frame, and the top of the moving frame is fixedly connected with the outer wall of the moving block A.

[0017] Preferably, the inner wall of the lying plate is slidingly connected with an arc-shaped pushing plate, the bottom of the arc-shaped pushing plate is hingedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a guide rod, the bottom of the guide rod is fixedly connected with a spherical body, the outer wall of the guide rod penetrates through the top of the rectangular shell and is slidingly connected, and the inner wall of the rectangular shell is fixedly connected with an arc-shaped sliding rail.

[0018] Preferably, the inner wall of the arc-shaped sliding rail is slidingly connected with the outer wall of the spherical body, and the outer wall of the guide rod penetrates through the top of the arc-shaped sliding rail and is slidingly connected.

[0019] Working principle: when radiotherapy, patients lie on the lying plate, start the electric sliding table, drive the concave frame to move horizontally to the radiotherapy instrument, push the two groups of arc-shaped push plates to the center through the guide rod and connecting rod, extrude the patient's scapula, assist in adjusting the body position, and realize accurate positioning.

[0020] Before radiotherapy, the lying plate can be adjusted according to the body type of the patient, and the comfort is improved.

[0021] For obese patients, rotating the outer rod drives the inner rod, rotates the threaded rod A, moves the moving block A upward, and supports the lateral support plates on both sides of the lying plate through the transverse connecting rod, to provide extended support.

[0022] For patients who are tall and fat, first push the outer rod upward, insert the clamping block into the sleeve slot, then rotate the outer rod to drive the inner rod and the sleeve to rotate, and through the chain wheel A, chain wheel B and chain transmission, make the threaded rod A and threaded rod B rotate at the same time, improve the expansion support efficiency. At the same time, the rotation of the threaded rod B makes the moving block B move upward, and the vertical plate is turned over through the vertical connecting rod to provide support for the patient's legs.

[0023] The upward movement of the moving block A indicates that the patient is obese, at this time the moving block A drives the moving frame to make the rectangular shell rise, change the height of the arc-shaped slide rail, the ball moves upward and drives the arc-shaped push plate to expand, realize the synchronous adjustment of the arc-shaped push plate calibration position when the threaded rod A expands, improve the convenience of the device.

[0024] The present application provides an automatic positioning device for tumor radiotherapy treatment. It has the following advantages:

[0025] 1. The present application sets a pushing plate mechanism, which automatically adjusts the position of the patient's scapula when the lying plate moves to the radiotherapy instrument, so that the patient is in the center of the lying plate, solves the problem that the traditional radiotherapy patient is easy to deviate from the center line, ensures the accurate irradiation of the tumor, reduces the damage to the normal tissue, improves the treatment effect, and reduces the complications.

[0026] 2. The present application sets a horizontal hinged plate mechanism and a vertical hinged plate mechanism, which can expand the horizontal plate and vertical plate according to the body type of the patient during use, so as to achieve the effect of expansion support, and adapt to patients of different body types for support treatment.

[0027] 3. The present application sets an outer rod, a clamping groove and a clamping block, which can be inserted and fixed with the sleeve by pressing and rotating when the horizontal plate and vertical plate need to be opened and supported at the same time, and can drive the threaded rod A and threaded rod B to rotate at the same time, avoiding the process of adjusting the threaded rod A and then adjusting the threaded rod B.

[0028] 4、The present application is provided with a moving frame, so that when the moving block A moves upward due to the patient's body type, it drives the moving frame and the rectangular shell, changes the height of the arc-shaped slide rail, and expands the arc-shaped push plate outward, realizing synchronous adjustment of expansion support and calibration position, reducing manual adjustment multiple times, improving operation convenience, and saving radiotherapy preparation time. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 is a perspective view of the present application;

[0030] Fig. 2 is a structure diagram of the horizontal plate and vertical plate after being folded;

[0031] Fig. 3 is a cross-sectional structure diagram of the concave frame;

[0032] Fig. 4 is a structure diagram of the longitudinal hinged plate mechanism;

[0033] Fig. 5 is a structure diagram of the transverse hinged plate mechanism;

[0034] Fig. 6 is a structure diagram of the push plate mechanism;

[0035] Fig. 7 is a cross-sectional structure diagram of the rectangular shell;

[0036] Fig. 8 is a structure diagram of the arc-shaped push plate.

[0037] 1, electric slide; 2, radiotherapy instrument; 3, concave frame; 4, transverse hinged plate mechanism; 401, threaded rod A; 402, moving block A; 403, rectangular groove; 404, transverse connecting rod; 405, horizontal plate; 406, sleeve; 407, outer rod; 408, clamping block; 409, spring; 410, sliding block; 411, inner rod; 5, longitudinal hinged plate mechanism; 501, chain; 502, chain wheel A; 503, chain wheel B; 504, threaded rod B; 505, moving block B; 506, vertical connecting rod; 507, vertical plate; 6, push plate mechanism; 601, rectangular shell; 602, moving frame; 603, guide rod; 604, arc-shaped slide rail; 605, sliding rail; 606, ball; 607, connecting rod; 608, arc-shaped push plate; 7, lying plate. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings in the present application specification. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0039] Please refer to FIG. 1-FIG. 8, the embodiment of the present application provides a kind of automatic positioning device for tumor radiotherapy treatment, including electric sliding table 1 and radiotherapy instrument 2, and the bottom of electric sliding table 1 and radiotherapy instrument 2 are connected and fixed with ground by bolt, guarantee stability in the process of use, the inner wall of electric sliding table 1 is slidably connected with concave frame 3, by starting electric sliding table 1, makes electric sliding table 1 drive concave frame 3 move laterally, drive patient to move to the below of radiotherapy instrument 2 and carry out treatment, the top of concave frame 3 is fixedly connected with lying plate 7, provides support effect for patient, concave frame 3 is provided with lateral hinged plate mechanism 4.

[0040] When needing to carry out radiotherapy to tumor patient, then need patient to lie on lying plate 7, and by starting electric sliding table 1, makes electric sliding table 1 drive concave frame 3 move laterally, and moves in the direction of concave frame 3 to radiotherapy instrument 2, when concave frame 3 drives lying plate 7 to move to the below of radiotherapy instrument 2, then start radiotherapy instrument 2 and carry out radiotherapy to tumor patient.

[0041] Lateral hinged plate mechanism 4 includes threaded rod A401, the top of threaded rod A401 is rotatably connected with the bottom of lying plate 7, so that lying plate 7 provides support effect for threaded rod A401, the middle segment outer wall of threaded rod A401 is rotatably connected with the inner wall of concave frame 3, so that threaded rod A401 rotates along the inner wall of concave frame 3.

[0042] The outer wall of threaded rod A401 is threadedly connected with moving block A402, by rotating threaded rod A401, moving block A402 is driven to move vertically, changes the vertical position of moving block A402, the outer wall of moving block A402 is hinged with lateral connecting rod 404, so that moving block A402 moves by lateral connecting rod 404 to drive horizontal plate 405 to flip and unfold, the outer wall of lateral connecting rod 404 is hinged with horizontal plate 405, the inner wall of horizontal plate 405 is hingedly connected with the inner wall of lying plate 7 by hinge piece, to realize the effect that horizontal plate 405 flips and folds or flips and unfolds along lying plate 7.

[0043] Considering that the size of existing lying plate 7 is fixed in the process of use, when facing patients of different body types, it cannot be expanded and adjusted, which affects the adaptability and comfort of lying plate 7, while the above-mentioned device can adjust the lying plate 7 according to the body type of the patient before radiotherapy, improving the comfort of the patient, specifically:

[0044] When encountering a patient with a larger body, the lateral hinged plate mechanism 4 is adjusted, the outer rod 407 is rotated by the medical staff, the inner rod 411 is rotated by the outer rod 407, the threaded rod A401 is rotated by the inner rod 411, the moving block A402 is moved upward by the threaded rod A401, and the two groups of lateral connecting rods 404 are used to support the lateral support plates on both sides of the lying plate 7 upward to open, thereby achieving the effect of expanding and supporting the patient.

[0045] The lying plate 7 is provided with a longitudinal hinged plate mechanism 5, the longitudinal hinged plate mechanism 5 comprises a threaded rod B504, the top of the threaded rod B504 is rotationally connected with the bottom of the lying plate 7, the bottom of the lying plate 7 provides a supporting effect for the threaded rod B504, the outer wall of the threaded rod B504 is threadedly connected with a moving block B505, the moving block B505 is vertically moved in the process of the threaded rod B504 rotating, the vertical position of the moving block B505 is changed, the outer wall of the moving block B505 is hingedly connected with a vertical connecting rod 506, the vertical connecting rod 506 drives a vertical plate 507 to flip in the process of the moving block B505 vertically moving, the top of the vertical connecting rod 506 is hingedly connected with the vertical plate 507, the inner wall of the vertical plate 507 and the inner wall of the lying plate 7 are hingedly connected through a hinge piece, the vertical plate 507 is flipped to be stored or unfolded along the lying plate 7.

[0046] The bottom of the threaded rod B504 is fixedly connected with a chain wheel A502, the chain wheel A502 drives the threaded rod B504 to rotate, the bottom of the concave frame 3 is rotationally connected with a sleeve 406, the concave frame 3 provides a supporting effect for the sleeve 406, the middle segment outer wall of the sleeve 406 is fixedly connected with a chain wheel B503, the chain wheel B503 drives the sleeve 406 to rotate in the process of the chain wheel B503 rotating, the outer wall of the chain wheel A502 is transmissionally connected with the outer wall of the chain wheel B503 through a chain 501, the chain wheel A502 drives the chain wheel B503 to rotate at the same time in the process of the chain wheel A502 rotating, and a transmission effect is achieved.

[0047] The bottom of the sleeve 406 is provided with a clamping groove, the clamping groove is designed to facilitate the insertion of the clamping block 408 provided on the top of the outer rod 407 into the bottom of the sleeve 406, the bottom of the threaded rod A401 is fixedly connected with an inner rod 411, the inner rod 411 drives the threaded rod A401 to rotate in the process of the inner rod 411 rotating, the outer wall of the inner rod 411 is fixedly connected with a sliding block 410, the outer wall of the inner rod 411 is slidingly connected with the outer rod 407, the outer rod 407 moves vertically along the outer wall of the inner rod 411, the inner wall of the outer rod 407 is provided with a rectangular groove 403, the sliding block 410 and the rectangular groove 403 are designed to make the outer rod 407 move along the outer wall of the inner rod 411, and the outer rod 407 drives the inner rod 411 to rotate at the same time in the process of the outer rod 407 rotating, and the inner wall of the rectangular groove 403 is slidingly connected with the outer wall of the sliding block 410.

[0048] The bottom of the inner rod 411 is fixedly connected with one end of a spring 409, the other end of the spring 409 is fixedly connected with the inner wall of the outer rod 407, the outer rod 407 is driven to move downward by the force of the spring 409, and the outer rod 407 is kept separated from the sleeve 406, the outer wall of the outer rod 407 is fixedly connected with the clamping block 408, the outer wall of the clamping block 408 is inserted into the inner wall of the clamping groove, and the outer rod 407 drives the sleeve 406 to rotate in the form of insertion.

[0049] When encountering a patient who is tall and relatively obese, the medical staff first pushes the outer rod 407 upward through the longitudinal hinged plate mechanism 5, so that the block 408 set at the top of the outer rod 407 is plugged into the slot at the bottom of the sleeve 406, and then rotates the outer rod 407, so that the outer rod 407 drives the inner rod 411 to rotate and drives the sleeve 406 to rotate, so that the sleeve 406 drives the threaded rod A401 and the threaded rod B504 to rotate at the same time through the transmission effect of the sprocket A502, the sprocket B503 and the chain 501, thereby improving the efficiency of the expansion support. At the same time, the rotation of the threaded rod B504 drives the moving block B505 to move upward, and drives the vertical plate 507 to flip upward through the vertical connecting rod 506, thereby providing an expansion support effect for the patient's legs;

[0050] A pushing plate mechanism 6 is provided at the bottom of the electric slide 1, and the pushing plate mechanism 6 includes a sliding rail 605. The top of the sliding rail 605 is fixedly connected to the bottom of the electric slide 1, so that the electric slide 1 provides a support effect for the sliding rail 605. The inner wall of the sliding rail 605 is slidably connected to a rectangular shell 601, so that the rectangular shell 601 moves vertically along the inner wall of the sliding rail 605. The outer wall of the rectangular shell 601 is slidably connected to a moving frame 602, so that the inner wall of the moving frame 602 moves laterally along the outer wall of the rectangular shell 601. The top of the moving frame 602 is fixedly connected to the outer wall of the moving block A402. When the moving block A402 moves vertically, it drives the moving frame 602 to move vertically at the same time, and the moving frame 602 drives the rectangular shell 601 set on the inner wall to move upward at the same time.

[0051] Taking into account that when the patient lies flat on the top of the reclining board 7, it is impossible to accurately ensure that he or she is in the midline of the reclining board 7, which affects the positioning treatment effect of the subsequent radiotherapy device 2, the above-mentioned device, after the patient lies flat on the reclining board 7, first reminds the patient through the medical staff to place the back and shoulders in the groove opened on the top of the reclining board 7. At this time, when the electric slide 1 is started again, the arc-shaped push plate 608 provided on the inner wall of the concave frame 3 drives the bottom ball 606 to move along the arc-shaped slide rail 604, so that the ball 606 gradually moves downward, and the ball 606 pulls the top guide rod 603 to move downward. In the process of the guide rod 603 moving downward, the two groups of arc-shaped push plates 608 are driven toward the center through the connecting rod 607, so that the arc-shaped push plates 608 squeeze and push the patient's shoulder blades, thereby assisting the patient to adjust the position on the reclining board 7 and achieve the purpose of precise positioning.

[0052] The inner wall of the lying plate 7 is slidably connected with the arc-shaped push plate 608, the stability of the arc-shaped push plate 608 is kept when moving horizontally, the bottom of the arc-shaped push plate 608 is hingedly connected with the connecting rod 607, the bottom of the connecting rod 607 is fixedly connected with the guide rod 603, so that the guide rod 603 moves vertically and drives the arc-shaped push plate 608 to move horizontally through the connecting rod 607, the bottom of the guide rod 603 is fixedly connected with the ball 606, so that the ball 606 drives the guide rod 603 to move vertically, the vertical position of the guide rod 603 is changed, the outer wall of the guide rod 603 penetrates through the top of the rectangular shell 601 and is slidably connected, the inner wall of the rectangular shell 601 is fixedly connected with the arc-shaped slide rail 604, so that the rectangular shell 601 provides support effect for the arc-shaped slide rail 604, the inner wall of the arc-shaped slide rail 604 is slidably connected with the outer wall of the ball 606, so that the ball 606 moves downward under the extrusion effect of the arc-shaped slide rail 604, and the ball 606 drives the guide rod 603 to move downward at the same time, the outer wall of the guide rod 603 penetrates through the top of the arc-shaped slide rail 604 and is slidably connected.

[0053] Meanwhile, considering that the transverse hinged plate mechanism 4 is adjusted to expand outward during the process, it means that the patient's body type is relatively fat, so it is necessary to adjust the calibration position of the arc-shaped push plate 608, so that the moving block A402 moves upward, the moving block A402 drives the moving frame 602 to move upward at the same time, the moving frame 602 drives the rectangular shell 601 arranged on the inner wall to move upward, the height of the rectangular shell 601 is changed, the height of the arc-shaped slide rail 604 arranged on the inner wall of the rectangular shell 601 is changed, the ball 606 moves upward at the same time, and the arc-shaped push plate 608 expands outward, the effect that the calibration position of the two arc-shaped push plates 608 is adjusted at the same time when the threaded rod A401 expands and supports is realized, and the convenience of the device is further improved.

[0054] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic positioning device for tumor radiotherapy, characterized in that: It comprises an electric slide (1) and a radiotherapy apparatus (2), wherein the inner wall of the electric slide (1) is slidably connected to a concave frame (3), and the top of the concave frame (3) is fixedly connected to a lying plate (7); The concave frame (3) is provided with a transverse hinged plate mechanism (4), and the transverse hinged plate mechanism (4) is unfolded and supported along the left and right sides of the lying plate (7) in a hinged manner; A longitudinal hinged plate mechanism (5) is provided on the lying plate (7), and the longitudinal hinged plate mechanism (5) is hingedly connected to be unfolded and supported along the bottom of the lying plate (7); A push plate mechanism (6) is provided at the bottom of the electric slide (1). When the lying plate (7) moves along the electric slide (1) toward the radiotherapy apparatus (2), the push plate mechanism (6) automatically pushes and calibrates the position of the patient's shoulder blade inward, so that the patient is located at the center of the lying plate (7).

2. The automatic positioning device for tumor radiotherapy according to claim 1, characterized in that: The transverse hinged plate mechanism (4) includes a threaded rod A (401), the top of the threaded rod A (401) is rotatably connected to the bottom of the lying plate (7), the middle outer wall of the threaded rod A (401) passes through the inner wall of the concave frame (3) and is rotatably connected, the outer wall of the threaded rod A (401) is threadedly connected to a moving block A (402), the outer wall of the moving block A (402) is hinged to a transverse connecting rod (404), the outer wall of the transverse connecting rod (404) is hinged to a transverse plate (405), and the inner wall of the transverse plate (405) and the inner wall of the lying plate (7) are hinged to each other through a hinge.

3. The automatic positioning device for tumor radiotherapy according to claim 1, characterized in that: The longitudinal hinged plate mechanism (5) comprises a threaded rod B (504), the top of the threaded rod B (504) is rotatably connected to the bottom of the lying plate (7), the outer wall of the threaded rod B (504) is threadedly connected to a moving block B (505), the outer wall of the moving block B (505) is hinged to a vertical connecting rod (506), the top of the vertical connecting rod (506) is hinged to a vertical plate (507), and the inner wall of the vertical plate (507) is hinged to the inner wall of the lying plate (7) through a hinge.

4. The automatic positioning device for tumor radiotherapy according to claim 3, characterized in that: The bottom of the threaded rod B (504) is fixedly connected to a sprocket A (502), the bottom of the concave frame (3) is rotatably connected to a sleeve (406), the outer wall of the middle section of the sleeve (406) is fixedly connected to a sprocket B (503), and the outer wall of the sprocket A (502) is transmission-connected to the outer wall of the sprocket B (503) via a chain (501).

5. The automatic positioning device for tumor radiotherapy according to claim 4, characterized in that: A slot is provided at the bottom of the sleeve (406); an inner rod (411) is fixedly connected to the bottom of the threaded rod A (401); a slider (410) is fixedly connected to the outer wall of the inner rod (411); an outer rod (407) is slidably connected to the outer wall of the inner rod (411); a rectangular groove (403) is formed at the inner wall of the outer rod (407); and the inner wall of the rectangular groove (403) is slidably connected to the outer wall of the slider (410).

6. The automatic positioning device for tumor radiotherapy according to claim 5, characterized in that: The bottom of the inner rod (411) is fixedly connected to one end of a spring (409), and the other end of the spring (409) is fixedly connected to the inner wall of the outer rod (407). The outer wall of the outer rod (407) is fixedly connected to a clamping block (408), and the outer wall of the clamping block (408) is plugged into the inner wall of the clamping slot.

7. The automatic positioning device for tumor radiotherapy according to claim 1, characterized in that: The push plate mechanism (6) comprises a sliding track (605), the top of the sliding track (605) is fixedly connected to the bottom of the electric slide (1), and the inner wall of the sliding track (605) is slidably connected to a rectangular shell (601).

8. An automatic positioning device for tumor radiotherapy according to claim 2 or claim 7, characterized in that: The outer wall of the rectangular shell (601) is slidably connected to a moving frame (602), and the top of the moving frame (602) is fixedly connected to the outer wall of the moving block A (402).

9. The automatic positioning device for tumor radiotherapy according to claim 1, characterized in that: The inner wall of the lying plate (7) is slidably connected to an arc-shaped push plate (608), the bottom of the arc-shaped push plate (608) is hinged with a connecting rod (607), the bottom of the connecting rod (607) is fixedly connected to a guide rod (603), the bottom of the guide rod (603) is fixedly connected to a sphere (606), the outer wall of the guide rod (603) passes through the top of the rectangular shell (601) and is slidably connected, and the inner wall of the rectangular shell (601) is fixedly connected to an arc-shaped slide rail (604).

10. The automatic positioning device for tumor radiotherapy according to claim 9, characterized in that: The inner wall of the arc-shaped slide rail (604) is slidably connected to the outer wall of the sphere (606), and the outer wall of the guide rod (603) passes through the top of the arc-shaped slide rail (604) and is slidably connected.

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