Source box bracket and source tank

Abstract

The present invention discloses a source cassette holder and source tank, relating to the field of radiotherapy technology. The holder can address the problem in related art where the source cassette cannot be smoothly inserted when the openings of the source cassette and the source cassette holder are misaligned. The source cassette holder includes a holder body, the holder body being provided with a receiving slot for accommodating the source cassette, the holder body being movably connected to a fixing member. When the source cassette and the opening of the receiving slot are misaligned and the source cassette abuts the holder body, the holder body can move relative to the fixing member to align the opening of the receiving slot with the source cassette. The present invention is used for placing a source cassette.

Description

Technical Field

[0001] The present invention relates to the technical field of radiotherapy, and in particular to a source box bracket and a source tank. Background Art

[0002] Radiation therapy is a common method of tumor treatment. It uses high-energy rays to pass through human tumors to kill tumor tissue, thereby achieving the purpose of treatment.

[0003] Types of high-energy rays include X-rays, gamma rays, etc. Gamma rays are generally produced by radioactive nuclide sources. The high-energy rays produced by such radioactive nuclide sources can be harmful to the human body. Therefore, in order to protect human health, radioactive nuclide sources (hereinafter referred to as radioactive sources) need to be placed in source cans for shielding during transportation.

[0004] One method for placing radioactive sources into a source canister in the related art involves loading multiple radioactive sources into a source cassette, which is then placed into a source cassette holder within the source canister. However, during the placement of the source cassette into the source cassette holder, the source cassette may become misaligned with the opening of the source cassette holder, causing the source cassette to become stuck in the opening of the source cassette holder and thus unable to be smoothly inserted into the source cassette holder. Summary of the Invention

[0005] Embodiments of the present invention provide a source cassette holder and a source tank, which can solve the problem in the related art that the source cassette cannot be smoothly inserted when the source cassette and the opening of the source cassette holder are not aligned.

[0006] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions:

[0007] An embodiment of the present invention provides a source box bracket, including a bracket body, wherein the bracket body is provided with a receiving groove for receiving the source box, and the bracket body is used to be movably connected to a fixing member; when the source box and the opening of the receiving groove are not aligned and the source box abuts against the bracket body, the bracket body can move relative to the fixing member to align the opening of the receiving groove with the source box.

[0008] An embodiment of the present invention further provides a source tank, comprising a source tank body, wherein the source box bracket in the above technical solution is provided in the source tank body.

[0009] The source box bracket and source tank provided in the embodiments of the present invention include a bracket body, the bracket body is provided with a receiving groove for receiving the source box, and the bracket body is used to be movably connected with a fixing member; when the opening of the source box and the receiving groove are not aligned and the source box abuts against the bracket body, the bracket body can move relative to the fixing member to align the opening of the receiving groove with the source box, so that the source box can be smoothly placed in the receiving groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 A three-dimensional diagram of a source cartridge support according to an embodiment of the present invention;

[0012] Figure 2 2 is a cross-sectional view of a source cartridge support according to an embodiment of the present invention. DETAILED DESCRIPTION

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0015] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0016] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0017] Figure 1 and Figure 2 This is a specific embodiment of the source box holder 100 according to an embodiment of the present invention. The source box holder 100 in this embodiment includes a holder body 1, which is provided with a receiving slot 11 for receiving the source box 200. The holder body 1 is used to be movably connected to a fixing member; when the source box 200 is not aligned with the opening of the receiving slot 11 and the source box 200 abuts against the holder body 1, the holder body 1 can move relative to the fixing member to align the opening of the receiving slot 11 with the source box 200.

[0018] The source box holder 100 provided in an embodiment of the present invention includes a holder body 1, and the holder body 1 is provided with a receiving groove 11 for receiving the source box 200. The holder body 1 is used to be movably connected with a fixing member; when the source box 200 is not aligned with the opening of the receiving groove 11 and the source box 200 is against the holder body 1, the holder body 1 can move relative to the fixing member to align the opening of the receiving groove 11 with the source box 200, so that the source box 200 can be smoothly placed in the receiving groove 11.

[0019] Specifically, the bracket body 1 is rotatably connected to the fixing member. When the source box 200 is not aligned with the opening of the receiving groove 11 and the source box 200 is against the bracket body 1, the bracket body 1 can be rotated relative to the fixing member to align the opening of the receiving groove 11 with the source box 200. The misalignment of the source box 200 with the opening of the receiving groove 11 here refers to the source box 200 being rotated relative to the opening by a certain angle along the circumference of the opening, that is, the central axis of the source box 200 coincides with the center line x of the receiving groove 11, but the source box 200 is rotated around the central axis by a certain angle. A certain angle is formed, resulting in misalignment; and / or, the bracket body 1 is slidably connected to the fixing part. When the source box 200 is misaligned with the opening of the receiving groove 11 and the source box 200 is against the bracket body 1, the bracket body 1 can move in a straight line relative to the fixing part to align the opening of the receiving groove 11 with the source box 200. The misalignment of the source box 200 and the opening of the receiving groove 11 mentioned here refers to a linear offset of the source box 200 relative to the opening, that is, the central axis of the source box 200 deviates from the center line x of the receiving groove 11, resulting in misalignment.

[0020] There are many implementations for moving the support body 1 relative to the fixing member. In one embodiment of the present invention, when the source cassette 200 is misaligned with the opening of the receiving slot 11 and the source cassette 200 abuts against the support body 1, the support body 1 is driven by an electric drive device to move relative to the fixing member so that the opening of the receiving slot 11 is aligned with the source cassette 200.

[0021] In another embodiment of the present invention, the bracket body 1 includes a guide surface 2 provided at the opening of the receiving groove 11, the guide surface 2 includes a first end 21 away from the bottom of the receiving groove 11 and a second end 22 close to the bottom of the receiving groove 11, the distance between the first end 21 and the depth centerline x of the receiving groove 11 is greater than the distance between the second end 22 and the depth centerline x of the receiving groove 11, when the source box 200 is aligned with the opening of the receiving groove 11, the source box 200 does not contact the guide surface 2; when the source box 200 is not aligned with the opening of the receiving groove 11, the source box 200 can abut against the guide surface 2, at this time, the source box 200 will squeeze the guide surface 2, applying a force to the guide surface 2, and under the action of the force, the bracket body 1 moves relative to the fixing member until the opening of the receiving groove 11 is aligned with the source box 200;

[0022] When the bracket body 1 is driven to move by an electric drive device, it is necessary to set a shielding structure for the electric drive device in consideration of the impact of the radiation source on the electric drive device. This results in a more complex structure of the source box bracket 100 and wastes electrical energy. However, when the bracket body 1 is driven to move by the guide surface 2, there is no need to set a shielding structure and waste electrical energy. In addition, the guide surface 2 can also guide the source box 200 so that the source box 200 can be placed more smoothly in the receiving groove 11. Therefore, the present invention preferably drives the bracket body 1 to move by the guide surface 2.

[0023] The guide surface 2 is one or more, refer to Figure 2 In this embodiment, there are preferably multiple guide surfaces 2. Compared with having only one guide surface 2, this embodiment allows the source box 200 to be squeezed against the guide surface 2 when it rotates or shifts in more directions relative to the opening of the accommodating groove 11, thereby making it easier for the bracket body 1 to move relative to the fixing member.

[0024] When there are two guide surfaces 2 and the two guide surfaces 2 are opposite to each other, if the angles (a, b) between the two opposite guide surfaces 2 and the depth direction of the receiving groove 11 are the same, the source box 200 may contact the two opposite guide surfaces 2 at the same time. In this way, the forces exerted by the source box 200 on the two guide surfaces 2 are equal in magnitude and opposite in direction, thereby canceling each other out, causing the bracket body 1 to be unable to move. In order to avoid the above problem, in this embodiment, when there are two guide surfaces 2 and the two guide surfaces 2 are opposite to each other, the angles (a, b) between the two opposite guide surfaces 2 and the depth direction of the receiving groove 11 are different in magnitude. This can prevent the source box 200 from contacting the two opposite guide surfaces 2 at the same time, thereby avoiding the problem that the two guide surfaces 2 are subjected to forces of equal magnitude and opposite in direction, causing the bracket body 1 to be unable to move.

[0025] The guide surface 2 can be arranged outside the receiving groove 11 or inside the receiving groove 11. However, if the guide surface 2 is arranged outside the receiving groove 11, the volume of the source box bracket 100 will increase, resulting in an increase in the space occupied by the source box bracket 100. Therefore, in this embodiment, it is preferred that the guide surface 2 is located inside the receiving groove 11.

[0026] In order to make the position of the source box 200 more stable, the bottom of the receiving groove 11 in this embodiment has a limiting structure 3 for limiting the position of the source box 200.

[0027] Reference Figure 2 The limiting structure 3 is a side surface of the accommodating groove 11 close to the bottom surface of the accommodating groove 11. The limiting structure 3 includes a third end 31 connected to the bottom surface and a fourth end 32 away from the bottom surface. The distance between the third end 31 and the depth direction center line x of the accommodating groove 11 is smaller than the distance between the fourth end 32 and the depth direction center line x of the accommodating groove 11. Therefore, the source box 200 can be limited by the third end 31 belonging to the side surface of the accommodating groove 11. Compared with other separately provided limiting structures 3, this embodiment makes the structure of the source box bracket 100 simpler and more convenient to process.

[0028] Of course, a limiting structure 3 may also be independently provided at the bottom of the receiving groove 11 , for example, it may be a fixing seat that cooperates with the source box 200 . The present invention does not limit the specific form of the limiting structure 3 .

[0029] The above-mentioned fixing part can be the inner wall of the source tank, and the bracket body 1 is movably connected to the inner wall of the source tank, so that the source box bracket 100 can be installed in the source tank. However, due to the obstruction of the inner wall of the source tank and the relatively complex structure of the movable connection, it is inconvenient to process and actually install. In order to solve this problem, the fixing part in this embodiment is a base 4, and the base 4 is used to support the bracket body 1. In this way, the bracket body 1 and the base 4 can be connected outside the source tank through the movable connection structure, and then the whole can be fixed in the source tank through the base 4. In this way, the obstruction of the inner wall of the source tank is avoided during the processing and connection of the movable connection structure, thereby making processing and installation more convenient.

[0030] Reference Figure 1 and Figure 2 The base 4 is provided with a slide groove 41, and the bracket body 1 is provided with a protrusion 12. For example, the protrusion 12 is a pin, which extends into the slide groove 41. The bracket body 1 rotates through the sliding cooperation between the protrusion 12 and the slide groove 41. When the protrusion 12 contacts any one of the two inner surfaces of the slide groove 41 arranged along the rotation direction of the bracket body 1, the bracket body 1 can stop rotating. That is, in this embodiment, the cooperation between the protrusion 12 and the slide groove 41 limits the rotation of the bracket body 1 to a certain angle range, so that the focusing direction of the source cartridge 200 in the receiving slot 11 does not deviate too much from the preset direction.

[0031] Of course, the movement of the bracket body 1 relative to the base 4 can also be achieved through the sliding cooperation between the protrusion 12 and the slide groove 41. When the protrusion 12 contacts any one of the two inner surfaces of the slide groove 41 arranged along the moving direction of the bracket body 1, the bracket body 1 can stop moving. In this way, the movement of the bracket body 1 can also be limited to a certain range, so that the source box 200 will not deviate too much from the preset position.

[0032] There are many embodiments for the rotational connection between the bracket body 1 and the base 4. For example, the bracket body 1 and the base 4 are rotationally connected through the bearing 5. Figure 2 A shaft 13 is provided at one end of the bracket body 1 close to the base 4. The shaft 13 has an interference fit with the inner ring of the bearing 5, and the base 4 has a clearance fit with the outer ring of the bearing 5. A retaining ring 6 is provided on the base 4, and the outer ring of the bearing 5 is pressed onto the base 4 through the retaining ring 6.

[0033] Reference Figure 2 Two cavities 7 are also provided in the bracket body 1, and the two cavities 7 are respectively located on both sides of the receiving groove 11. This reduces the weight of the source box bracket 100 on the one hand, making the source box bracket 100 lighter, and on the other hand, it makes the structural uniformity on both sides of the receiving groove 11 better, thereby making the rotation of the bracket body 1 more stable; the base 4 also has a cavity 7, which also reduces the weight of the source box bracket 100.

[0034] An embodiment of the present invention further provides a source tank, including a source tank body, in which the source box support 100 described in any of the above embodiments is arranged.

[0035] The source tank provided by the embodiment of the present invention has a source box bracket 100 including a bracket body 1, and a receiving groove 11 for receiving the source box 200 is provided on the bracket body 1, and the bracket body 1 is used to be movably connected with the fixing member; when the source box 200 is not aligned with the opening of the receiving groove 11 and the source box 200 is against the bracket body 1, the bracket body 1 can move relative to the fixing member to align the opening of the receiving groove 11 with the source box 200, so that the source box 200 can be smoothly placed in the receiving groove 11.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A source box bracket, characterized in that: The bracket body comprises a bracket body, wherein the bracket body is provided with an accommodating groove for accommodating the source cartridge, and the bracket body is used for being movably connected with the fixing member; When the source box is not aligned with the opening of the receiving slot and the source box abuts against the support body, the support body can move relative to the fixing member to align the opening of the receiving slot with the source box; The bracket body includes a guide surface provided at the opening of the receiving groove, the guide surface including a first end away from the bottom of the receiving groove and a second end close to the bottom of the receiving groove, the distance between the first end and the depth centerline of the receiving groove being greater than the distance between the second end and the depth centerline of the receiving groove; When the source box is aligned with the opening of the receiving slot, the source box does not contact the guide surface; when the source box is not aligned with the opening of the receiving slot, the source box can abut against the guide surface, and the source box squeezes the guide surface to apply a force to the guide surface, so that the bracket body moves relative to the fixing member until the opening of the receiving slot is aligned with the source box.

2. The source box support according to claim 1, wherein: The support body is rotatably connected to the fixing member. When the source box is not aligned with the opening of the receiving slot and the source box abuts against the support body, the support body can rotate relative to the fixing member to align the opening of the receiving slot with the source box. And / or, the bracket body is slidably connected to the fixing member, and when the source box is not aligned with the opening of the receiving groove and the source box abuts against the bracket body, the bracket body can move relative to the fixing member to align the opening of the receiving groove with the source box.

3. The source box support according to claim 1, wherein: There are one or more guide surfaces.

4. The source box support according to claim 3, wherein: When there are two guide surfaces and the two guide surfaces are opposite to each other, the angles between the two opposite guide surfaces and the depth direction of the accommodating groove are different.

5. The source box support according to claim 1, wherein: The guide surface is located in the accommodating groove.

6. The source box support according to claim 1, wherein: The bottom of the accommodating groove has a limiting structure for limiting the source box.

7. The source box support according to claim 6, wherein: The limiting structure is the side surface of the accommodating groove close to the bottom surface of the accommodating groove, and the limiting structure includes a third end connected to the bottom surface and a fourth end away from the bottom surface. The distance between the third end and the depth center line of the accommodating groove is smaller than the distance between the fourth end and the depth center line of the accommodating groove.

8. The source box support according to claim 1, wherein: The fixing member is a base, and the base is used to support the bracket body.

9. The source box support according to claim 8, characterized in that: The base is provided with a slide groove, and the bracket body is provided with a protrusion, and the protrusion can slide in the slide groove.

10. A source tank, comprising a source tank body, characterized in that: The source tank body is provided with a source box support according to any one of claims 1 to 9.

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