Radiation source shield

Abstract

The utility model discloses a radioactive source shield case, including shield case body, both ends of shield case body all are provided with the detachable end plate, and the top embedding of shield case body is connected with the cover, the both sides of the top of shield case body all are installed with the fixed base, and the other both sides of the top of shield case body all are installed with the clamping seat of corresponding position with fixed base, the top of fixed base is provided with the rotating mechanism, and the fixed base is connected with the crossbeam through rotating mechanism, and rotating mechanism is used for the rotation of crossbeam on fixed base at least, the clamping seat is provided with locking assembly, and locking assembly is used for the locking of crossbeam one end at least. The utility model discloses the crossbeam can overturn along fixed base to the fixed position installation of radioactive source setting below crossbeam, ensures that radioactive source is in the predetermined position when treating every time, and the diffusion of radioactive ray to the surrounding is limited through shield case body, and the radiation dose that the surrounding healthy tissue receives is reduced.

Description

Technical Field

[0001] This utility model relates to the field of radiation therapy protection technology, specifically to a radiation source shield. Background Technology

[0002] Radiotherapy is one of the main methods of cancer treatment. Medical electron accelerators, robotic arm radiotherapy devices, helical tomotherapy devices, and gamma ray stereotactic radiotherapy devices are commonly used radiotherapy equipment in clinical practice.

[0003] The X-rays and gamma rays generated by the aforementioned equipment are partly used for tumor treatment (useful beams), and partly leaked radiation (useless beams, which is stray radiation) after penetrating the shielding of the radiotherapy equipment. This leaked radiation can cause radiation hazards to normal human tissues and organs outside the radiotherapy target area. Therefore, it is urgent to design a radiation source shielding enclosure to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a radiation source shield to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A radiation source shield, including a shield body, wherein both ends of the shield body are provided with detachable end plates, and a cover is embedded and connected to the top of the shield body;

[0007] The shield body has a fixing seat installed on both sides of the top, and a card slot corresponding to the fixing seat is installed on the other two sides of the top.

[0008] A rotating mechanism is provided above the fixed base, and a crossbeam is connected to the fixed base through the rotating mechanism. The rotating mechanism is at least used for the rotation of the crossbeam on the fixed base.

[0009] The card holder is provided with a locking component, which is used to lock at least one end of the crossbeam;

[0010] The top of the crossbeam is provided with a threaded hole, and a lead screw is inserted into the threaded hole. The bottom end of the lead screw is provided with a rotating connecting seat, and the bottom of the rotating connecting seat is provided with a mounting plate. A radiation source is provided below the mounting plate.

[0011] Preferably, support members are fixedly installed on both sides of the bottom of the shield body, and the two support members are symmetrically distributed about the shield body, with an angle of 120-150 degrees between the two support members.

[0012] Preferably, both the fixing seat and the card holder are provided with pads inside.

[0013] Preferably, the rotating mechanism includes a pin fixed above the fixed base, a bushing rotatably sleeved around the pin, and one end of the crossbeam fixedly connected to the bushing.

[0014] Preferably, the locking assembly includes a movable ear plate disposed at the end of the crossbeam and a fixed ear plate fixed on the card seat, and a locking element is disposed between the fixed ear plate and the movable ear plate.

[0015] Preferably, a hand-held ring is fixedly provided at the top end of the lead screw.

[0016] Preferably, one of the end plates has a through hole on one side, the through hole being at least for the passage of radiation from the radiation source.

[0017] In the above technical solution, the radiation source shielding provided by this utility model has the following beneficial effects:

[0018] (1) The crossbeam can be rotated along the fixed seat to fix the position of the radiation source set below the crossbeam, ensuring that the radiation source is in the predetermined position during each treatment. The radiation is limited to spread to the surrounding area by the shield body, reducing the radiation dose received by the surrounding healthy tissue.

[0019] (2) By designing a reasonable structure or adopting appropriate protective measures, the radiation source can be effectively isolated to reduce the radiation impact on surrounding normal tissues.

[0020] (3) By adjusting the screw on the crossbeam, the position of the mounting plate can be adjusted inside the shield, so that the radiation source can be accurately aimed at the target area for irradiation, thereby improving the treatment effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 The structural three-dimensional representation of the radiation source shielding cover of this utility model provides an embodiment. Figure 1 .

[0023] Figure 2 The structural three-dimensional representation of the radiation source shielding cover of this utility model provides an embodiment. Figure 2 .

[0024] Figure 3 This is a schematic diagram of the shield body structure provided for an embodiment of the radiation source shield of this utility model.

[0025] Figure 4 A schematic diagram of the crossbeam structure provided for an embodiment of the radioactive source shielding cover of this utility model.

[0026] 1. Shielding cover body; 2. Support component; 3. End plate; 4. Cover; 5. Fixing seat; 6. Pad; 7. Card seat; 8. Pin; 9. Bushing; 10. Crossbeam; 11. Fixed ear plate; 12. Movable ear plate; 13. Locking component; 14. Lead screw; 15. Hand ring; 16. Rotary connecting seat; 17. Mounting plate; 18. Radiation source; 19. Threaded hole. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-4 As shown, the radiation source shield provided in this embodiment of the present invention includes a shield body 1, both ends of which are provided with detachable end plates 3, and a cover 4 is embedded in the top of the shield body 1. The end plates 3 and the cover 4 can be fixed to the shield body 1 with bolts, which can achieve the sealing of the shield body 1 while also facilitating disassembly and maintenance.

[0029] It should be noted that the shielding cover body 1, end plate 3 and cover 4 are made of lead-boron polyethylene board. Lead-boron polyethylene board is a composite board made of high-purity lead powder, boron powder and polyethylene material through a special process. Lead-boron polyethylene board has high density and excellent nuclear radiation shielding performance, and can effectively block ionizing radiation such as X-rays and gamma rays.

[0030] The top two sides of the shield body 1 are equipped with fixing seats 5, and the other two sides of the top of the shield body 1 are equipped with card holders 7 corresponding to the fixing seats 5.

[0031] A rotating mechanism is provided above the fixed base 5, and a crossbeam 10 is connected to the fixed base 5 through the rotating mechanism. The rotating mechanism is used at least for the rotation of the crossbeam 10 on the fixed base 5, and the crossbeam 10 rotates on the fixed base 5 through the rotating mechanism.

[0032] The card holder 7 is provided with a locking component, which is used to lock at least one end of the crossbeam 10. The locking component is used to lock and fix the end of the crossbeam 10 on the card holder 7. Disassembling the locking component can separate the end of the crossbeam 10 from the card holder 7.

[0033] The top of the crossbeam 10 is provided with a threaded hole 19, and a lead screw 14 is threaded into the inside of the threaded hole 19. The bottom end of the lead screw 14 is provided with a rotating connecting seat 16, and the bottom of the rotating connecting seat 16 is provided with a mounting plate 17. The radiation source 18 is provided below the mounting plate 17. By rotating the lead screw 14, the operator can rotate the lead screw 14 inside the threaded hole 19 to adjust the height of the lead screw 14. Since the bottom end of the lead screw 14 is connected to the mounting plate 17 through the rotating connecting seat 16, the height adjustment of the lead screw 14 can simultaneously drive the mounting plate 17 to adjust its height, thereby adjusting the position of the radiation source 18 inside the shielding cover body 1.

[0034] In one embodiment of this utility model, support members 2 are fixedly installed on both sides of the bottom of the shielding cover body 1. The two support members 2 are symmetrically distributed about the shielding cover body 1, and the angle between the two support members 2 is 120-150 degrees. The support members 2 are used to fix and support the shielding cover body 1, which facilitates the placement of the shielding cover body 1.

[0035] In another embodiment of this utility model, both the fixed base 5 and the card holder 7 are provided with pads 6 inside, and the pads 6 can support the crossbeam 10.

[0036] In another embodiment of this utility model, the rotating mechanism includes a pin 8 fixed above the fixed base 5, a bushing 9 rotatably sleeved on the outside of the pin 8, one end of the crossbeam 10 being fixedly connected to the bushing 9, and when the crossbeam 10 rotates, the bushing 9 rotates on the pin 8, with the pin 8 and the bushing 9 serving as the fulcrum for the rotation of the crossbeam.

[0037] In one embodiment of this utility model, the locking assembly includes a movable ear plate 12 disposed at the end of the crossbeam 10 and a fixed ear plate 11 fixed on the card seat 7. A locking member 13 is disposed between the fixed ear plate 11 and the movable ear plate 12. When one end of the crossbeam 10 is rotated and inserted into the card seat 7, the fixed ear plate 11 and the movable ear plate 12 are aligned. The locking member 13 is used to lock the two together, thereby fixing the end of the crossbeam 10 inside the card seat 7.

[0038] In another embodiment of this utility model, a hand ring 15 is fixedly provided at the top of the lead screw 14. The operator can rotate the lead screw 14 more easily by holding the hand ring 15, which saves time and effort.

[0039] In another embodiment of this utility model, one of the end plates 3 is provided with a through hole on one side. The through hole is at least used for the radiation source 18 to pass through. After the radiation source 18 is started, the radiation is emitted in a directional manner through the through hole, which is more conducive to the shielding and protection of the radiation.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A radiation source shield, comprising a shield body (1), characterized in that, The shield body (1) is provided with detachable end plates (3) at both ends, and a cover (4) is embedded in the top of the shield body (1). The shield body (1) has a fixed seat (5) installed on both sides of the top, and a card seat (7) corresponding to the fixed seat (5) is installed on the other two sides of the top. A rotating mechanism is provided above the fixed seat (5), and a crossbeam (10) is connected to the fixed seat (5) through the rotating mechanism. The rotating mechanism is used at least for the rotation of the crossbeam (10) on the fixed seat (5). The card holder (7) is provided with a locking component, which is used to lock at least one end of the crossbeam (10); The top of the crossbeam (10) is provided with a threaded hole (19), and a lead screw (14) is threaded into the inside of the threaded hole (19). A rotating connecting seat (16) is provided at the bottom of the lead screw (14), and a mounting plate (17) is provided at the bottom of the rotating connecting seat (16). A radiation source (18) is provided below the mounting plate (17).

2. The radiation source shielding cover according to claim 1, characterized in that, Support members (2) are fixedly installed on both sides of the bottom of the shield body (1). The two support members (2) are symmetrically distributed about the shield body (1), and the angle between the two support members (2) is 120-150 degrees.

3. The radiation source shielding cover according to claim 1, characterized in that, Both the fixed base (5) and the card holder (7) are provided with pads (6).

4. The radiation source shielding cover according to claim 1, characterized in that, The rotating mechanism includes a pin (8) fixed above the fixed seat (5), and a bushing (9) is rotatably sleeved on the outside of the pin (8). One end of the crossbeam (10) is fixedly connected to the bushing (9).

5. The radiation source shielding cover according to claim 1, characterized in that, The locking assembly includes a movable ear plate (12) disposed at the end of the crossbeam (10) and a fixed ear plate (11) fixed on the card seat (7), and a lock (13) is provided between the fixed ear plate (11) and the movable ear plate (12).

6. The radiation source shielding cover according to claim 1, characterized in that, A hand ring (15) is fixedly provided at the top end of the lead screw (14).

7. The radiation source shielding cover according to claim 1, characterized in that, One of the end plates (3) has a through hole on one side, which is at least for the passage of radiation from the radiation source (18).

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