Base positioning device for radiotherapy

Abstract

The utility model discloses a base positioning device for radiotherapy, which comprises a bottom strip and positioning seats, the bottom strip is provided with a positioning column used for being connected with a base for fixing the body position of a patient, the positioning seats are arranged at the two ends of the bottom strip, the bottom of each positioning seat is provided with a telescopic clamping block, and the clamping blocks extend towards the bottom of the bottom strip. And a clamping gap is formed between the bottom strip and the clamping block. The telescopic clamping blocks are arranged on the positioning seats at the two ends of the bottom strip, so that the bottom strip is positioned on the bed plate by utilizing the clinging of the bottom strip and the clamping blocks and the upper and lower sides of the bed plate and the correspondence of the positioning bosses and the positioning holes; by arranging the unlocking button and the connecting rod, when the bottom strip needs to be moved, the positioning boss can be far away from the positioning hole in the bed board by pressing the unlocking button, rapid unlocking is achieved, medical staff can move the bottom strip under the condition that the base is not lifted after unlocking, and therefore manpower is saved, and risks possibly occurring in the operation process are reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a base positioning device for radiotherapy. Background Art

[0002] In precise radiotherapy of tumors, in order to ensure that the actual irradiation range of the beam is as consistent as possible with the planned target area, the patient's position can be fixed to reduce the error of the position during radiotherapy. At the same time, it is very important to accurately fix the base for fixing the patient's position on the detection table or treatment table.

[0003] At present, the commonly used method is to realize repeated fixing of the base by an adapter bar. In actual operation, the adapter bar is installed on the bed surface, and then the base is aligned with the limit column on the adapter bar and installed above the bed surface.

[0004] However, in clinical applications, in order to treat patients with tumors in different parts of the body, the base needs to be moved in the head-to-foot direction on the treatment bed to ensure that the tumor target area can be in the center of the irradiation range. Since the base is a fixed frame that fixes the patient's body, it is usually long and even heavy. When adjusting the position, the base needs to be lifted up and the adapter strip needs to be moved first, which will cause trouble to medical staff and even cause risks such as collision with treatment equipment when lifting the base, affecting the efficiency of medical staff. Utility Model Content

[0005] The purpose of the utility model is to provide a base positioning device for radiotherapy to solve one or more technical problems existing in the above-mentioned background technology.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A base positioning device for radiotherapy includes a bottom bar and a positioning seat, wherein the bottom bar is provided with a positioning column for connecting to a base for fixing a patient's position, the positioning seat is arranged at both ends of the bottom bar, and a retractable clamping block is provided at the bottom of the positioning seat, the clamping block extends toward the bottom of the bottom bar, and a clamping gap is formed between the bottom bar and the clamping block for clamping a bed board.

[0008] Preferably, it further comprises a positioning boss, wherein the positioning boss is arranged on a side of the clamping block close to the clamping gap, and the positioning boss is used to correspond to the positioning hole on the bed board.

[0009] Preferably, the positioning boss includes a plurality of positioning pins, and the plurality of positioning pins are arranged in sequence up and down and increase in diameter in sequence.

[0010] Preferably, it further comprises an unlocking button and a connecting rod, wherein the two ends of the connecting rod are respectively connected to the unlocking button and the clamping block, the positioning seat is provided with a limiting hole which passes through from top to bottom, and the connecting rod is slidably matched with the limiting hole.

[0011] Preferably, a return spring is further included, and two ends of the return spring are respectively against the unlocking button and the positioning seat.

[0012] Preferably, a semicircular groove is formed on one side of the bottom strip, and the semicircular groove is opposite to the positioning boss in the upper and lower directions.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: by arranging retractable clamping blocks on the positioning seats at both ends of the bottom bar, the bottom bar is positioned on the bed board by utilizing the close contact between the bottom bar, the clamping blocks and the upper and lower sides of the bed board and the correspondence between the positioning boss and the positioning hole; by arranging an unlocking button and a connecting rod, when the bottom bar needs to be moved, the positioning boss can be moved away from the positioning hole on the bed board by pressing the unlocking button, thereby realizing quick unlocking. After unlocking, medical staff can move the bottom bar without lifting the base, thereby saving manpower and reducing the risks that may occur during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings further illustrate the present invention, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0015] Figure 1 It is a schematic diagram of the overall structure of one embodiment of the utility model;

[0016] Figure 2 yes Figure 1 A partial enlarged schematic diagram of

[0017] Figure 3 This is a schematic diagram of the installation of the base positioning device and the bed board in one embodiment of the utility model;

[0018] Figure 4 It is the cross-sectional view of section AA in 3.

[0019] Among them: bottom bar 1, positioning seat 2, positioning column 3, clamping block 4, positioning boss 5, positioning pin 51, unlocking button 21, connecting rod 22, limiting hole 23, return spring 24, semicircular groove 11, bed board 6, positioning hole 61. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0021] A radiotherapy base positioning device of this embodiment is shown in FIG. Figure 1 , 3and 4, comprising a bottom bar 1 and a positioning seat 2, the bottom bar 1 is provided with a positioning column 3 for connecting to a base for fixing the patient's position, the positioning seat 2 is arranged at both ends of the bottom bar 1, a retractable clamping block 4 is provided at the bottom of the positioning seat 2, the clamping block 4 extends toward the bottom of the bottom bar 1, and a clamping gap is formed between the bottom bar 1 and the clamping block 4 for clamping the bed board 6.

[0022] By arranging clamping blocks 4 on the positioning seats 2 at both ends of the bottom bar 1, the bottom bar 1 can be positioned on the bed board 6 by utilizing the close contact between the bottom bar 1, the clamping blocks 4 and the upper and lower sides of the bed board 6. The clamping blocks 4 are retractable. When the bottom bar 1 needs to be moved, the clamping blocks 4 are moved away from the bottom bar 1, so that the clamping gap is increased to be greater than the thickness of the bed board 6. At this time, the bottom bar 1 can move on the bed board 6 to achieve quick unlocking, which is convenient for medical staff to move the bottom bar 1 without lifting the base.

[0023] Preferably, the positioning boss 5 is arranged on one side of the clamping block 4 close to the clamping gap, and the positioning boss 5 is used to correspond to the positioning hole 61 on the bed board 6. The positioning of the bottom bar 1 on the bed board 6 is achieved by the correspondence between the positioning boss 5 and the positioning hole 61 and the close contact between the bottom bar 1 and the clamping block 4 and the upper and lower sides of the bed board 6, wherein the close contact between the bottom bar 1 and the clamping block 4 and the upper and lower sides of the bed board 6 plays a role in limiting the bottom bar 1 in the vertical direction, and the correspondence between the positioning boss 5 and the positioning hole 61 plays a role in limiting the bottom bar 1 in the horizontal direction.

[0024] Preferably, refer to the attached Figure 2 The positioning boss 5 includes a plurality of positioning pins 51, which are arranged in sequence up and down and increase in diameter in sequence. By arranging a plurality of positioning pins 51 with different diameters, the treatment bed with positioning holes 61 of different sizes can be adapted, and the versatility is wider.

[0025] Preferably, it also includes an unlocking button 21 and a connecting rod 22, the two ends of the connecting rod 22 are respectively connected to the unlocking button 21 and the clamping block 4, the positioning seat 2 is provided with a limit hole 23 that passes through from top to bottom, and the connecting rod 22 is slidably matched with the limit hole 23. The unlocking button 21 is set on the positioning seat 2, and the unlocking button 21 is connected to the clamping block 4 through the connecting rod 22, so that the distance between the clamping block 4 and the bottom bar 1 is controlled by the unlocking button 21, which facilitates the installation and unlocking of the bottom bar 1 on the bed board 6.

[0026] Furthermore, a return spring 24 is included, and the two ends of the return spring 24 are respectively against the unlocking button 21 and the positioning seat 2. Therefore, by arranging the return spring 24 between the unlocking button 21 and the positioning seat 2, the return spring 24 is kept in a compressed state after installation, so that under the action of the return spring 24, the unlocking button 21 keeps a tendency to move away from the positioning seat 2, thereby driving the clamping block 4 to keep a tendency to move toward the bottom of the bottom bar 1 through the connecting rod 22, so as to achieve the clamping of the clamping block 4 on the bed board 6.

[0027] Preferably, a semicircular groove 11 is provided on one side of the bottom bar 1, and the semicircular groove 11 is opposite to the positioning boss 5. Therefore, when the bottom bar 1 is disassembled from the bed board 6, the clamping block 4 rebounds and fits with the bottom bar 1 under the action of the reset spring 24, and at the same time drives the positioning boss 5 to correspond to the semicircular groove 11. Therefore, the setting of the semicircular groove 11 avoids the direct collision between the positioning boss 5 and the bottom bar 1 when the clamping block 4 rebounds, increases the contact area between the bottom bar 1 and the clamping block 4, avoids damage to the bottom bar 1, and prolongs the service life of the bottom bar 1.

[0028] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A radiotherapy base positioning device, characterized in that: It includes a bottom bar and a positioning seat, the bottom bar is provided with a positioning column for connecting to a base for fixing the patient's position, the positioning seats are arranged at both ends of the bottom bar, and a retractable clamping block is provided at the bottom of the positioning seat. The clamping block extends toward the bottom of the bottom bar, and a clamping gap is formed between the bottom bar and the clamping block for clamping the bed board.

2. A radiotherapy base positioning device according to claim 1, characterized in that: It also includes a positioning boss, which is arranged on a side of the clamping block close to the clamping gap, and is used to correspond to the positioning hole on the bed board.

3. A radiotherapy base positioning device according to claim 2, characterized in that: The positioning boss includes a plurality of positioning pins, which are arranged in sequence up and down and increase in diameter in sequence.

4. A radiotherapy base positioning device according to claim 2, characterized in that: It also includes an unlocking button and a connecting rod, the two ends of the connecting rod are respectively connected to the unlocking button and the clamping block, the positioning seat is provided with a limiting hole which passes through from top to bottom, and the connecting rod is slidably matched with the limiting hole.

5. A radiotherapy base positioning device according to claim 4, characterized in that: It also includes a return spring, and two ends of the return spring are respectively against the unlocking button and the positioning seat.

6. A radiotherapy base positioning device according to claim 5, characterized in that: A semicircular groove is formed on one side of the bottom strip, and the semicircular groove is opposite to the positioning boss up and down.

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