Patient support device applied to particle beam therapy system

Abstract

The utility model relates to the technical field of medical instruments, and discloses a patient supporting device applied to a particle beam therapy system, which comprises a base, a bed plate and a connecting plate, an adjusting mechanism is arranged on the base, and a binding mechanism is arranged on the bed plate; the adjusting mechanism comprises two sliding rails and an air cylinder, sliding blocks are connected into the sliding rails in a sliding mode, and second connecting pieces are fixedly arranged on the sliding blocks. A screw rod is rotated by rotating a hand wheel, so that a moving plate can drive a guide rod to lift and move, a limiting stop lever can be adjusted to a proper height, the comfort of a patient is guaranteed, meanwhile, arms and legs of the patient can be bound, and the situation that the particle beam treatment effect is affected by large movement of the patient is prevented; the air cylinder is controlled to push the connecting rod to move, so that the hinge rod can drive the connecting plate to adjust the inclination angle until the inclination angle meeting the requirement of a patient is adjusted, and the comfort of the patient during beam therapy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a patient supporting device used in a particle beam therapy system. Background Art

[0002] Radiotherapy refers to the use of high-energy rays to kill tumors. It is an important non-invasive tumor treatment method. The radiotherapy equipment used for radiotherapy mainly includes a frame and a treatment bed. A treatment head for emitting high-energy rays is installed on the frame. During radiotherapy, the patient's treatment part needs to be aligned with the focus of the rays emitted by the treatment head so that the rays can accurately hit the target area in the body, thereby avoiding damage to healthy tissues near the target area. Therefore, it is necessary to ensure that the patient's affected part does not move during radiotherapy.

[0003] The Chinese patent provides a position monitoring system and radiotherapy equipment, the publication number is CN209378331U, wherein the position monitoring system includes: a first bracket, used to be movably connected to a patient supporting device supporting a patient; at least one first marking component, arranged at the part to be treated of the patient; at least one second marking component, arranged at a predetermined position; a mobile monitoring device, arranged on the first bracket, used to monitor the displacement of the first marking component relative to the second marking component; a control device, connected to the mobile monitoring device.

[0004] The above-mentioned device has the effect of monitoring whether the position of the patient's treated area moves, but the device cannot restrain the patient to a certain extent. The patient is prone to autonomous movement when lying for a long time, which affects the effect of beam therapy. At the same time, the support device in the device cannot adjust the head tilt according to the patient's comfort requirements, which makes the patient prone to neck stiffness and discomfort during treatment. Therefore, it is necessary to provide a patient support device for particle beam therapy system. Summary of the invention

[0005] The purpose of the utility model is to provide a patient support device applied to a particle beam therapy system to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a patient support device applied to a particle beam therapy system, comprising a base, a bed plate and a connecting plate, the base is provided with an adjustment mechanism, and the bed plate is provided with a restraining mechanism; the adjustment mechanism comprises two slide rails and a cylinder, a slider is slidably connected in the slide rail, a second connecting member is fixedly provided on the slider, a first connecting member is fixedly provided at the bottom of the connecting plate, a hinge rod is hingedly provided between the first connecting member and the second connecting member, a connecting rod is fixedly provided between the two sliders, and an output rod of the cylinder is fixedly connected to the connecting rod; the restraining mechanism comprises two sets of limit stoppers, a guide rod is fixedly provided at the bottom of the limit stopper, a moving plate is fixedly provided at the bottom of the guide rod, a screw threadedly connected to the moving plate is provided below the bed plate, a driven bevel gear is fixedly connected to the bottom of the screw, a fixed plate is fixedly provided at the bottom of the bed plate, a rotating rod is rotatably connected to the fixed plate, and an active bevel gear meshingly connected to the driven bevel gear is fixedly provided at one end of the rotating rod.

[0007] Preferably, a notch slidably connected to the connecting rod is provided on the slide rail, the slide rail is fixedly arranged on the base, and a limiting slide rod slidably connected to the sliding block is fixedly arranged inside the slide rail.

[0008] Preferably, a fixing seat is fixedly arranged on the base, and the cylinder is fixedly arranged on the fixing seat.

[0009] Preferably, a sliding hole slidably connected to the guide rod is opened on the bed board, an axle seat is fixedly provided on the bottom of the bed board, and the top of the screw rod is rotatably connected to the axle seat.

[0010] Preferably, one end of the screw rod away from the active bevel gear is fixedly connected to a hand wheel.

[0011] Preferably, a rotating shaft is rotatably connected between the bed board and the connecting plate, a headrest is fixedly provided on the connecting plate, a mounting groove is opened on the bed board, a molding mold is provided in the mounting groove, and a leg limit seat is fixedly provided on the bed board.

[0012] Preferably, a support rod and a support diagonal rod are fixedly arranged between the bed board and the base.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1) The patient support device applied to the particle beam therapy system rotates four hand wheels to make the active bevel gear drive the driven bevel gear to rotate, and the driven bevel gear drives the screw to rotate, so that the movable plate can drive the guide rod to move up and down under the action of the thread, so that the limit stop rod can be adjusted to a suitable height, ensuring the patient's comfort while restraining the patient's arms and legs to prevent the patient's large activities from affecting the particle beam therapy effect. At the same time, it can be flexibly adjusted according to the physical characteristics of different patients, thereby improving the scope of application of the device.

[0015] 2) The patient support device applied to the particle beam therapy system controls the cylinder to push the connecting rod to move, so that the bottom of the hinge rod gradually approaches the vertical state, so that the first connecting member can lift the connecting plate, so that the connecting plate can be tilted under the action of the rotating shaft. On the contrary, the cylinder drives the connecting rod to pull back and gradually tilt the bottom of the hinge rod, so that the connecting plate is lowered until it is adjusted to a tilt angle suitable for the patient's needs, so as to improve the patient's comfort during beam therapy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a patient support device used in a particle beam therapy system in an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the bed board in the embodiment of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the restraining mechanism in the embodiment of the utility model;

[0019] Figure 4 This is a three-dimensional structural schematic diagram of the adjustment mechanism in the embodiment of the utility model;

[0020] Figure 5 In the embodiment of the utility model Figure 4 A magnified view of the structure at center.

[0021] In the figure: 1. base; 2. bed board; 3. connecting plate; 4. headrest; 5. rotating shaft; 6. adjusting mechanism; 601. first connecting member; 602. slide rail; 603. slider; 604. limit slide rod; 605. second connecting member; 606. hinge rod; 607. connecting rod; 608. notch; 609. fixed seat; 610. cylinder; 7. restraining mechanism; 701. guide rod; 702. limit stop rod; 703. moving plate; 704. shaft seat; 705. screw rod; 706. driven bevel gear; 707. fixing plate; 708. rotating rod; 709. hand wheel; 710. driving bevel gear; 711. sliding hole; 8. leg limit seat; 9. molding mold; 10. mounting groove; 11. support rod; 12. supporting diagonal rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0023] Combination Figure 1-Figure 5 A patient support device used in a particle beam therapy system includes a base 1, a bed board 2 and a connecting plate 3, a rotating shaft 5 is rotatably connected between the bed board 2 and the connecting plate 3, a headrest 4 is fixedly arranged on the connecting plate 3, a mounting groove 10 is opened on the bed board 2, a molding mold 9 is arranged in the mounting groove 10, a leg limit seat 8 is fixedly arranged on the bed board 2, a support rod 11 and a support oblique rod 12 are fixedly arranged between the bed board 2 and the base 1, an adjusting mechanism 6 is arranged on the base 1, and a restraining mechanism 7 is arranged on the bed board 2.

[0024] Specifically, the patient lies on the bed board 2, the molding mold 9 can adapt to the patient's spine and improve the comfort of the patient's spine, and the molding mold 9 can be taken out from the mounting groove 10 for easy cleaning and replacement. The patient's thigh is placed in the leg limit seat 8, and the patient's head is placed on the headrest 4. Embodiment 2

[0025] See also Figure 4 and Figure 5 , and on the basis of Example 1, it is further obtained that the adjustment mechanism 6 includes two slide rails 602 and a cylinder 610, a slider 603 is slidably connected in the slide rail 602, a second connecting member 605 is fixedly arranged on the slider 603, a first connecting member 601 is fixedly arranged at the bottom of the connecting plate 3, a hinge rod 606 is hingedly arranged between the first connecting member 601 and the second connecting member 605, a connecting rod 607 is fixedly arranged between the two sliders 603, and the output rod of the cylinder 610 is fixedly connected to the connecting rod 607; a notch 608 slidably connected to the connecting rod 607 is opened on the slide rail 602, the slide rail 602 is fixedly arranged on the base 1, a limit slide rod 604 slidably connected to the slider 603 is fixedly arranged in the slide rail 602, a fixed seat 609 is fixedly arranged on the base 1, and the cylinder 610 is fixedly arranged on the fixed seat 609.

[0026] Specifically, the cylinder 610 is controlled to push the connecting rod 607 to move, so that the bottom of the hinge rod 606 gradually approaches a vertical state, so that the first connecting member 601 can lift the connecting plate 3, so that the connecting plate 3 can be tilted under the action of the rotating shaft 5. On the contrary, the cylinder 610 drives the connecting rod 607 to pull back, so that the bottom of the hinge rod 606 gradually tilts, so that the connecting plate 3 descends until it is adjusted to a tilt angle suitable for the patient's needs, so as to improve the patient's comfort during beam therapy. Embodiment 3

[0027] See also Figure 2 and Figure 3 , and on the basis of the first and second embodiments, it is further obtained that the restraining mechanism 7 includes two sets of limit stop rods 702, a guide rod 701 is fixedly provided at the bottom of the limit stop rod 702, a movable plate 703 is fixedly provided at the bottom of the guide rod 701, a screw rod 705 threadedly connected to the movable plate 703 is provided below the bed board 2, a driven bevel gear 706 is fixedly connected to the bottom of the screw rod 705, a fixed plate 707 is fixedly provided at the bottom of the bed board 2, a rotating rod 708 is rotatably connected to the fixed plate 707, one end of the rotating rod 708 is fixedly provided with an active bevel gear 710 meshingly connected to the driven bevel gear 706, a sliding hole 711 slidably connected to the guide rod 701 is opened on the bed board 2, an axle seat 704 is fixedly provided at the bottom of the bed board 2, the top of the screw rod 705 is rotatably connected to the axle seat 704, and a hand wheel 709 is fixedly connected to the end of the screw rod 705 away from the active bevel gear 710.

[0028] Specifically, by rotating the four hand wheels 709, the active bevel gear 710 drives the driven bevel gear 706 to rotate, and the driven bevel gear 706 drives the screw 705 to rotate, so that the movable plate 703 can drive the guide rod 701 to move up and down under the action of the thread, so that the limit stop rod 702 can be adjusted to a suitable height, ensuring the patient's comfort while restraining the patient's arms and legs to prevent the patient's large activities from affecting the particle beam treatment effect. At the same time, it can be flexibly adjusted according to the physical characteristics of different patients, thereby improving the scope of application of the device.

[0029] In actual operation, the patient lies on the bed board 2, the shaping mold 9 can adapt to the patient's spine, improve the comfort of the patient's spine, and the shaping mold 9 can be taken out from the mounting groove 10, which is convenient for cleaning and replacement. The patient's thigh is placed in the leg limit seat 8, and the patient's head is placed on the headrest 4;

[0030] The inclination angle of the connecting plate 3 is adjusted according to the patient's comfort requirements. During the adjustment, the connecting rod 607 is pushed by the control cylinder 610 to move, so that the bottom of the hinge rod 606 gradually approaches the vertical state, so that the first connecting member 601 can lift the connecting plate 3, so that the connecting plate 3 can be tilted under the action of the rotating shaft 5. On the contrary, the cylinder 610 drives the connecting rod 607 to pull back, so that the bottom of the hinge rod 606 gradually tilts, so that the connecting plate 3 is lowered until it is adjusted to a tilt angle suitable for the patient's needs, so as to improve the patient's comfort during beam therapy;

[0031] After adjusting the inclination angle of the connecting plate 3, the active bevel gear 710 drives the driven bevel gear 706 to rotate by rotating the four hand wheels 709, and the driven bevel gear 706 drives the screw 705 to rotate, so that the movable plate 703 can drive the guide rod 701 to move up and down under the action of the thread, so that the limit stop rod 702 can be adjusted to a suitable height, ensuring the patient's comfort while restraining the patient's arms and legs to prevent the patient's large activities from affecting the particle beam treatment effect. At the same time, it can be flexibly adjusted according to the physical characteristics of different patients, thereby improving the scope of application of the device.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A patient support device for a particle beam therapy system, comprising a base (1), a bed plate (2) and a connecting plate (3), characterized in that: The base (1) is provided with an adjustment mechanism (6), and the bed board (2) is provided with a restraining mechanism (7); The adjustment mechanism (6) comprises two slide rails (602) and a cylinder (610); a slider (603) is slidably connected inside the slide rail (602); a second connecting member (605) is fixedly arranged on the slider (603); a first connecting member (601) is fixedly arranged at the bottom of the connecting plate (3); a hinge rod (606) is hingedly arranged between the first connecting member (601) and the second connecting member (605); a connecting rod (607) is fixedly arranged between the two sliders (603); and an output rod of the cylinder (610) is fixedly connected to the connecting rod (607); The restraining mechanism (7) comprises two groups of limit stop rods (702), a guide rod (701) being fixedly arranged at the bottom of the limit stop rod (702), a movable plate (703) being fixedly arranged at the bottom of the guide rod (701), a screw rod (705) being threadedly connected to the movable plate (703) being arranged below the bed plate (2), a driven bevel gear (706) being fixedly connected at the bottom of the screw rod (705), a fixed plate (707) being fixedly arranged at the bottom of the bed plate (2), a rotating rod (708) being rotatably connected to the rotating plate (707), and a driving bevel gear (710) being meshed with the driven bevel gear (706) being fixedly arranged at one end of the rotating rod (708).

2. The patient support device for a particle beam therapy system according to claim 1, characterized in that: The slide rail (602) is provided with a notch (608) slidably connected to the connecting rod (607); the slide rail (602) is fixedly arranged on the base (1); and a limiting slide rod (604) slidably connected to the sliding block (603) is fixedly arranged inside the slide rail (602).

3. The patient support device for a particle beam therapy system according to claim 2, characterized in that: A fixing seat (609) is fixedly arranged on the base (1), and the cylinder (610) is fixedly arranged on the fixing seat (609).

4. The patient support device for a particle beam therapy system according to claim 1, characterized in that: The bed board (2) is provided with a sliding hole (711) slidably connected to the guide rod (701); a shaft seat (704) is fixedly provided at the bottom of the bed board (2); and the top of the screw rod (705) is rotatably connected to the shaft seat (704).

5. The patient support device for a particle beam therapy system according to claim 4, characterized in that: One end of the screw rod (705) away from the active bevel gear (710) is fixedly connected to a hand wheel (709).

6. The patient support device for a particle beam therapy system according to claim 1, characterized in that: A rotating shaft (5) is rotatably connected between the bed board (2) and the connecting plate (3); a headrest (4) is fixedly provided on the connecting plate (3); a mounting groove (10) is provided on the bed board (2); a molding mold (9) is provided in the mounting groove (10); and a leg limiting seat (8) is fixedly provided on the bed board (2).

7. The patient support device for a particle beam therapy system according to claim 1, characterized in that: A support rod (11) and a support diagonal rod (12) are fixedly arranged between the bed board (2) and the base (1).

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