Radioactive source tank with transportation and source guiding functions and source changing system

Abstract

The utility model discloses a radioactive source tank with transportation and source guiding functions and a source changing system, relates to the technical field of radiotherapy, and aims to solve the problem that the source guiding process of the source tank is complicated. The radioactive source tank with the transportation and source guiding functions comprises a source tank body, a source box chamber, a shielding door and a guide rod assembly. A containing cavity is formed in the source tank body, an avoiding notch and a pull rod hole are formed in the two sides of the source tank body respectively, and the avoiding notch and the pull rod hole are both communicated with the containing cavity; the source box chamber is arranged in the containing cavity and used for containing a source box, the source box enters and exits from the containing cavity through the avoiding notch, a through hole is formed in the source box chamber, and the through hole and the pull rod hole are coaxially formed; the shielding door is arranged at the avoiding gap and can move relative to the avoiding gap to close or open the avoiding gap; the guide rod assembly extends into or out of the source box chamber through the pull rod hole and the through hole to be connected with the source box so as to pull in or push out the source box. During source guiding, the guide rod assembly pushes out the source box through the avoiding notch communicated with the tank body, a source guiding tank is not needed, and the source guiding process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of radiotherapy technology, and in particular to a radioactive source container and source replacement system with transport and source conduction functions. Background Technology

[0002] Gamma Knife is an important radiotherapy device that typically uses cobalt-60 for radiation therapy. Cobalt-60 is radioactive and must be manufactured and transported by specialized companies.

[0003] The existing source transport tanks and source delivery fixtures need to be set up on-site at the hospital. First, the radioactive source must be extracted into the source delivery fixture before the source delivery operation can be carried out. This is time-consuming, labor-intensive, and risky.

[0004] Extracting the radioactive source into the source-conducting fixture requires assembling a complex set of equipment to ensure radiation safety. This shielding equipment is composed of high-density shielding materials such as lead alloy and is very heavy. The assembly process is time-consuming, labor-intensive, and unsafe.

[0005] Therefore, there is a need to provide a radioactive source container with transportation and source guiding functions to solve the problems of existing source containers having a complex source guiding process that requires the construction of source guiding fixtures, which is time-consuming and labor-intensive. Utility Model Content

[0006] The purpose of this invention is to provide a radioactive source container and source exchange system with transportation and source conduction functions, aiming to solve the problem of the complex source conduction process of the source container.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] This utility model provides a radioactive source container with transportation and source guiding functions, including a source container body, a source cartridge chamber, a shielding door, and a guide rod assembly. The source container body has a receiving cavity, and both sides of the source container body have clearance notches and pull rod holes, which communicate with the receiving cavity. The source cartridge chamber is located within the receiving cavity and is used to house the source cartridge. It enters and exits the receiving cavity through the clearance notch, and the source cartridge chamber has a through hole coaxially arranged with the pull rod hole. The shielding door is located at the clearance notch and can move relative to the clearance notch, allowing the clearance notch to close or open. The guide rod assembly extends into or out of the source cartridge chamber through the pull rod hole and the through hole, and is connected to the source cartridge to pull the source cartridge into or out of the source cartridge chamber.

[0009] In this way, when the source container provided in this application is used for radioactive source transfer, the source container can be used as a storage device, the source cartridge can be placed in the source cartridge chamber, and the shielding door can close the clearance opening to keep the source cartridge in a sealed environment to meet safety requirements. Furthermore, when the source container provided in this application is used for source delivery, i.e., when the source cartridge needs to be extracted into the radiotherapy equipment, the shielding door can be driven to open the clearance opening, allowing the clearance opening of the source container to directly connect with the radiotherapy equipment. Then, the guide rod assembly pushes the source cartridge out of the source cartridge chamber and into the corresponding position on the radiotherapy equipment through the pull rod hole and through hole. Finally, the shielding door is driven to close the clearance opening. During transportation, the guide rod assembly also serves a fixing function.

[0010] In some embodiments of this application, the source chamber is detachably connected to the source tank body.

[0011] In some embodiments of this application, when there are multiple source chambers, the connection method between the multiple source chambers and the source tank body is the same.

[0012] In some embodiments of this application, the source chamber is provided with a first threaded hole, and the source can body is provided with a second threaded hole. The second threaded hole is located in the receiving cavity, and the first threaded hole and the second threaded hole are coaxially arranged. A threaded component is provided in the first threaded hole and the second threaded hole and is threadedly connected to connect the source chamber and the source can body.

[0013] In some embodiments of this application, the source chamber is provided with a first locking block, the source can body is provided with a first locking groove, the first locking groove is located in the receiving cavity, the first locking block engages with the first locking groove, and the source chamber and the source can body engage.

[0014] In some embodiments of this application, the internal contour of the source cartridge chamber matches the external contour of the source cartridge.

[0015] In some embodiments of this application, the outer contour of the source chamber matches the inner contour of the source tank body.

[0016] In some embodiments of this application, the source cartridge chamber includes a source cartridge inlet and outlet coaxially disposed with the clearance notch, and the source cartridge inlet and outlet are connected to the clearance notch, so that the source cartridge can enter and exit the source cartridge chamber through the clearance notch and the source cartridge inlet and outlet.

[0017] In some embodiments of this application, the guide rod assembly is provided with a connection portion adapted to the source cartridge, so that the guide rod assembly can pull the source cartridge into or out of the source cartridge chamber.

[0018] In some embodiments of this application, the outer peripheral surface of the connecting part of the guide rod assembly is provided with a threaded part, the source box is provided with a threaded hole, and the threaded part is threadedly connected to the threaded hole.

[0019] In some embodiments of this application, the connecting part of the guide rod assembly is a hook, the source box is provided with a snap-fit ​​hole, the hook passes through the snap-fit ​​hole, and the connecting part is hooked to the source box.

[0020] In some embodiments of this application, the radioactive source container with transport and source-guiding functions further includes a shielding door drive assembly and a locking structure. The shielding door drive assembly is used to drive the shielding door to move, causing the clearance gap to close or open. The locking structure is used to prevent the shielding door from moving relative to the clearance gap.

[0021] In some embodiments of this application, the radioactive source container with transport and source guiding functions also includes a locking structure to prevent the shielding door from moving relative to the clearance gap.

[0022] This application also provides a source-switching system, including any of the aforementioned radioactive source containers with transport and guiding functions. The source-switching system further includes a support fixture and a radiotherapy device. The support fixture is used to support the radioactive source container. A storage compartment is used to hold the source cartridge, and the storage compartment can communicate with an avoidance notch and the source cartridge inlet / outlet to form a source-switching channel. When the shielding door is opened, the guide rod assembly can push the source cartridge out of the source cartridge chamber and into the storage compartment of the radiotherapy device through the source-switching channel.

[0023] In this way, the source replacement system provided in this application eliminates the step of introducing the source cartridge from the source container into the delivery container during source replacement. A guide rod assembly can be used to directly push the source cartridge out of the source container through a clearance notch and into other source storage devices, such as radiotherapy equipment. Eliminating the delivery container greatly simplifies the source cartridge delivery process. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 One of the schematic diagrams of a radioactive source container with transportation and source-guiding functions provided in an embodiment of this application;

[0026] Figure 2 A second schematic diagram of a source tank provided for an embodiment of this application;

[0027] Figure 3 A third schematic diagram of a source tank provided for an embodiment of this application;

[0028] Figure 4 A fourth schematic diagram of a source tank provided for an embodiment of this application;

[0029] Figure 5 Fifth schematic diagram of a source tank provided for embodiments of this application;

[0030] Figure 6 A schematic diagram of a source tank provided for an embodiment of this application;

[0031] Figure 7 One of the schematic diagrams of a source tank containing a source chamber is provided in the embodiments of this application;

[0032] Figure 8 A second schematic diagram of a source tank containing a source chamber is provided in an embodiment of this application;

[0033] Figure 9 A schematic diagram of a source chamber provided for an embodiment of this application;

[0034] Figure 10 This is a schematic diagram of a source-switching system provided in an embodiment of this application.

[0035] Figure label:

[0036] Source tank-100; Tank body-1; Second threaded hole-1001; First slot-1002; Receiving cavity-10; Clearance notch-101; Pull rod hole-102;

[0037] Source chamber -2; Through hole -21; First threaded hole -201; First locking block -202; Source chamber inlet / outlet -203; Source chamber -200; Threaded hole -2000; Locking hole -2001;

[0038] Platform screen door-3;

[0039] Guide rod assembly-4; Connecting part-400; Threaded part-401; Hook-402;

[0040] Support fixture-5;

[0041] Radiotherapy equipment - 6; Source storage container - 60;

[0042] First linkage rod - 701; First connecting shaft - 702; First support shaft - 703; Positioning pin - 704; Lifting lug - 705. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or relative positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in actual application, provided that the relative positional relationship shown in the accompanying drawings is satisfied.

[0045] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] In embodiments of this invention, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0048] In this embodiment of the invention, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in this embodiment of the invention should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0049] Gamma Knife is an important radiotherapy device that typically uses cobalt-60 for radiation therapy. Cobalt-60 is radioactive. When the radiation source in the radiotherapy equipment needs to be changed to meet different treatment requirements, a source transport container is first required to transport the radiation source from the production unit to the location of the radiotherapy equipment. A source guide tool is also needed to remove the radiation source from the transport container and then transfer it into the radiotherapy equipment.

[0050] Extracting a radioactive source requires the construction of a shielding fixture to ensure radiation safety. However, this fixture is typically made of high-density shielding materials such as lead alloys, making it heavy. The construction process is time-consuming, labor-intensive, and unsafe.

[0051] Therefore, this application provides a radioactive source container with transportation and source guiding functions to solve the problems of existing source containers having a complex source guiding process that requires the construction of source guiding fixtures, which is time-consuming and labor-intensive.

[0052] like Figure 1 As shown, Figure 1 A schematic diagram of a radioactive source container 100 (hereinafter referred to as source container 100) with transportation and source guiding functions provided for this application.

[0053] The source tank 100 provided in this application includes a source tank body 1, such as Figure 2 As shown, the source tank body 1 has a receiving cavity 10 inside. The source tank body 1 has a clearance notch 101 and a pull rod hole 102 on opposite sides, and both the clearance notch 101 and the pull rod hole 102 are connected to the receiving cavity 10.

[0054] Based on this, the source can 100 provided in this application also includes a source cartridge chamber 2, which is disposed within the receiving cavity 10 of the source can body 1 and is used to house the source cartridge 200. The source cartridge chamber 2 enters and exits the receiving cavity 10 through a clearance notch 101 provided on the source can body 1. The source cartridge chamber 2 is provided with a through hole 21, which is coaxially arranged with the pull rod hole 102.

[0055] It should be noted that the aforementioned source box 200 is used to contain a radioactive source, such as cobalt-60.

[0056] Optionally, in one implementation of the source tank body 1 in this embodiment, such as... Figure 1 As shown, at least one lifting lug 705 is also provided on the outer wall of the source tank body 1, and the at least one lifting lug 705 is used to lift the source tank body 1.

[0057] When multiple lifting lugs 705 are provided on the source tank body 1, the lifting lugs 705 are symmetrically arranged on both sides of the outer wall of the source tank body 11, so that the process of moving the source tank through the symmetrically arranged lifting lugs is safer and more stable, and tilting is avoided. During the process of hoisting the source tank through the lifting lugs, the attitude of the source tank can also be adjusted, making the movement of the source tank and the assembly of the source tank with other components more convenient. The source tank 100 provided in this application also includes a shielding door 3 (see...). Figure 1 The shielding door 3 is located at the clearance gap 101. The shielding door 3 can move relative to the clearance gap 101, so that the clearance gap 101 is closed or opened.

[0058] In this way, when it is necessary to place the source chamber 2 into the receiving cavity 10 of the source canister body 1, the shielding door 3 is moved to open the clearance notch 101, allowing the source chamber 2 to enter the receiving cavity 10 through the clearance notch 101. Alternatively, when it is necessary to remove the source chamber 2 from the receiving cavity 10, the shielding door 3 is moved to open and close the clearance notch 101, allowing the source chamber 2 to be removed from the receiving cavity through the clearance notch 101. When the receiving cavity 10 contains the source chamber 2, the shielding door 3 closes the clearance notch 101 to ensure that radiation levels meet standards.

[0059] The shielding door 3 can be driven by conventional means, for example, by a shielding door drive assembly, to close or open the clearance gap 101.

[0060] In some embodiments, the radioactive source container with transportation and source guiding functions provided in this application further includes a shielding door drive assembly, which is used to drive the shielding door 3 to move, so that the clearance gap 101 is closed or opened.

[0061] The drive assembly may include a lifting structure, which is fixedly connected to the shielding door to facilitate user movement of the shielding door via the lifting structure. The lifting structure may be a handle or a pull assembly, for example... Figure 3 As shown, the lifting structure includes a first linkage rod 701, a first connecting shaft 702, and a first support shaft 703.

[0062] The first linkage 701 and the first support shaft 703 are rotatably connected, and the first support shaft 703 is fixed to the outer wall of the source tank 1. In one implementation of this embodiment, the first connecting shaft 702 is disposed on the first linkage 701, and the shielding door 3 is connected to the first linkage 701 through the first connecting shaft 702. In this embodiment, the first linkage 701, the first connecting shaft 702, and the first support shaft 703 are provided. When the shielding door 3 is driven to open or close the clearance gap 101 by the first linkage 701, the process of moving the shielding door 3 is more convenient and labor-saving. At the same time, it also allows the operator's operating position to be far away from the opening or closing position of the shielding door 3 during the source conduction process, thereby improving the safety of the operation process.

[0063] Optionally, the lifting structure may also include at least one positioning pin 704 and a fixing socket. The fixing socket is provided on the outer wall of the source tank body 1. The first linkage rod 701 is provided with a socket (not shown in the figure). At least one positioning pin can pass through the socket and the fixing socket on the first linkage rod to fix the first linkage rod, thereby fixing the shielding door 3 and preventing it from being opened, thus avoiding accidental opening of the shielding door 3 and leakage of the radioactive source.

[0064] In order to remove the source cartridge 2 from the receiving cavity 10 or place the source cartridge 2 into the receiving cavity 10, such as Figure 4 As shown, the source can 100 provided in this application also includes a guide rod assembly 4. The guide rod assembly 4 can extend into or out of the source can chamber 2 through the pull rod hole 102 opened on the source can body 1 and the through hole 21 opened on the source can chamber 2, and connect with the source can 200 placed in the source can chamber 2, thereby pulling the source can 200 into or out of the source can chamber 200.

[0065] The guide rod assembly 4 includes multiple guide rods that are detachably connected, for example, by threaded connection.

[0066] As described above, the source canister 100 provided in this application mainly includes a source canister body 1 and a source cartridge chamber 2 that enters the receiving cavity 10 through a clearance notch 101 in the source canister body 1. The source cartridge chamber 2 can accommodate the source cartridge 200. A shielding door 3 that can move relative to the clearance notch 101 is also provided at the clearance notch 101. The shielding door 3 can open or close the clearance notch 101. When the shielding door 3 moves and the clearance notch 101 is opened, the source cartridge 200 can be pulled into or pushed out of the source cartridge chamber 2 by the guide rod assembly 4.

[0067] In this way, when the source container 100 provided in this application is used for radioactive source transfer, the source container 100 can be used as a storage device, the source box 200 can be placed in the source box chamber 2, the shielding door 3 can close the clearance opening 101, and the guide rod assembly 4 can be connected to the source box 200 and transported together with the source box to fix the source box and keep the source box 200 in a sealed environment to meet safety requirements. Preferably, only one section of the guide rod assembly 4 is connected to the source box 200, and the remaining parts of the guide rod assembly 4 can be connected when arriving at the installation site to form a complete guide rod assembly 4. Furthermore, the length of the guide rod assembly 4 can be adjusted by assembling multiple sections of the guide rod, improving flexibility.

[0068] Based on this, when it is necessary to extract the source cartridge 200 into the radiotherapy equipment, the shielding door 3 can be driven to open the clearance notch 101, and the clearance notch 101 of the source canister body 1 can be directly connected to the radiotherapy equipment. Then, the guide rod assembly 4 pushes the source cartridge 200 out of the source cartridge chamber 2 through the pull rod hole 102 and the through hole 21, and pushes it into the corresponding position of the radiotherapy equipment. Then, the shielding door 3 is driven to close the clearance notch 101, thus ending the source delivery.

[0069] It should be noted that the guide rod assembly 4 is provided with a connecting part 400 that is adapted to the source cartridge 200, so that the guide rod assembly 4 can pull the source cartridge 200 into or out of the source cartridge chamber 2.

[0070] like Figure 4 As shown, in some embodiments of this application, the outer peripheral surface of the connecting portion 400 of the guide rod assembly 4 is provided with a threaded portion 401, and the source cartridge 200 is provided with a threaded hole 2000. The threaded portion 401 is threadedly connected to the threaded hole 2000. In this way, the purpose of connecting the guide rod assembly 4 to the source cartridge 200 can be achieved. When the guide rod assembly 4 needs to be connected to the source cartridge 200, the guide rod assembly 4 extends into the source cartridge chamber 2 through the pull rod hole 102 and the through hole 21, and then is threadedly connected to the threaded hole 2000 on the source cartridge 200.

[0071] like Figure 5 As shown, in some other embodiments of this application, the connecting portion 400 of the guide rod assembly 4 can also be a hook 402. Based on this, the source box 200 is provided with a snap-fit ​​hole 2001, and the hook 402 passes through the snap-fit ​​hole 2001, so that the connecting portion 400 of the guide rod assembly 4 is connected to the source box 200.

[0072] In some embodiments of this application, the source chamber 2 and the source tank body 1 are detachably connected.

[0073] In some embodiments of this application, there may be multiple source chambers 2, and the connection method between multiple source chambers 2 and the source can body 1 is the same. The detachable connection structure between the source chambers 2 and the source can body 1 allows the source can body 1 to adapt to source chambers 200 with different shapes and structures. Different source chambers 200 can be installed in the same source can body 1 to adapt to source chambers with different shapes and structures. Based on this, existing source cans can be selected, improving the versatility of the source can 100.

[0074] In this way, the source cartridge chamber 2 placed in the receiving cavity 10 can be replaced, and a suitable source cartridge chamber 2 can be selected according to the source cartridge 200, so that the source tank 100 can store or transport source cartridges 200 with different shapes and structures, thereby improving the versatility of the source tank 100.

[0075] In some embodiments of this application, such as Figure 6 As shown, the source chamber 2 is provided with a first threaded hole 201, and the source tank body 1 is provided with a second threaded hole 1001, which is located within the receiving cavity 10. The first threaded hole 201 and the second threaded hole 1001 are coaxially arranged. Based on this, threaded components are provided within the first threaded hole 201 and the second threaded hole 1001, and these threaded components are threadedly connected to the first threaded hole 201 and the second threaded hole 1001 to connect the source chamber 2 and the source tank body 1.

[0076] In this way, a detachable connection between the source chamber 2 and the source canister body 1 can be achieved through the first threaded hole 201, the second threaded hole 1001, and the threaded component threadedly connected to the first threaded hole 201 and the second threaded hole 1001. That is, when it is necessary to connect the source chamber 2 to the source canister body 1, the threaded component is simply threaded into the first threaded hole 201 and the second threaded hole 1001; when it is necessary to remove the source chamber 2, the threaded component is simply removed from the first threaded hole 201 and the second threaded hole 1001.

[0077] In other embodiments of this application, such as Figure 7 As shown, the source chamber 2 is provided with a first locking block 202, and the source can body 1 is provided with a first locking groove 1002, which is located within the receiving cavity 10. The first locking block 202 engages with the first locking groove 1002, thereby engaging the source chamber 2 and the source can body 1. The source chamber 2 and the source can body 1 can be detachably connected by engaging the first locking block 202 and the first locking groove 1002.

[0078] In some embodiments of this application, the outer contour of the source chamber 2 matches the inner contour of the source tank body 1. This serves to secure the source chamber 2 and the source tank 200 during transportation, thereby improving transportation safety.

[0079] In some embodiments of this application, the source cartridge chamber 2 for accommodating the source cartridge 200 is detachably connected to the source can body 1, and the outer contour of the source cartridge chamber 2 matches the inner contour of the source can body 1.

[0080] Based on this, the internal contour of the source chamber 2 provided in this application matches the external contour of the source chamber 200.

[0081] Among some possible implementations of this utility model, see [link to relevant documentation]. Figure 7 Since the outer contour of the source box 200 is rectangular, the inner contour of the source box chamber 2 is also rectangular. This allows the inner contour of the source box chamber 2 to match the outer contour of the source box 200. Furthermore, with this matching, the source box 200 can fully contact the inner wall of the source box chamber 2, providing support and reducing shaking, thus improving transportation safety.

[0082] In some other possible implementations of this utility model, see [link to relevant documentation]. Figure 8 Since the outer contour of the source box 200 is hemispherical, the inner contour of the source box chamber 2 is also hemispherical. This allows the inner contour of the source box chamber 2 to match the outer contour of the source box 200. Furthermore, with this matching, the source box 200 can fully contact the inner wall of the source box chamber 2, providing support and reducing shaking, thus improving transportation safety.

[0083] It should be noted that matching the external contour shape of the source box 200 with the internal contour shape of the source box chamber 2 means that the external contour shape of the source box 200 is the same as the internal contour shape of the source box chamber 2, and the dimensions are also the same.

[0084] like Figure 9 As shown, the source cartridge chamber 2 includes a source cartridge inlet / outlet 203 coaxially arranged with the clearance notch 101, and the source cartridge inlet / outlet 203 is connected to the clearance notch 101 so that the source cartridge 200 can enter and exit the source cartridge chamber 2 through the clearance notch 101 and the source cartridge inlet / outlet 203.

[0085] In some embodiments, the radioactive source container with transportation and source guiding functions provided in this application further includes a locking structure for preventing the shielding door 3 from moving relative to the clearance gap 101, so as to ensure that the shielding door 3 will not move when closing the clearance gap 101, and to ensure that the clearance gap 101 can be stably closed.

[0086] Based on this, this application also provides a source replacement system, which includes any of the above-mentioned radioactive source containers with transportation and source guiding functions.

[0087] like Figure 10 As shown, the source replacement system also includes a support fixture 5, which is used to support the radioactive source container 100 so that the container body 1 can be docked with the radiotherapy equipment 6.

[0088] The source-switching system also includes a radiotherapy device 6, which includes a source storage compartment 60 for holding a source cartridge 200. The source storage compartment 60 can communicate with the clearance notch 101 of the source canister body 1 and the source cartridge inlet / outlet 203 to form a source-switching channel. When the shielding door 3 moves and the clearance notch 101 opens, the guide rod assembly 4 can push the source cartridge 200 out of the source cartridge chamber 2 through the source-switching channel and into the source storage compartment 60 of the radiotherapy device.

[0089] In this way, the source replacement system provided in this application eliminates the step of introducing the source cartridge from the source container into the delivery container during source replacement. A guide rod assembly can be used to directly push the source cartridge out of the source container through a clearance notch and into other source storage devices, such as radiotherapy equipment. Eliminating the delivery container greatly simplifies the source cartridge delivery process.

[0090] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0091] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A radioactive source capsule having transport and sourcing functions, characterized in that, The source tank body is provided with a containing cavity, and both sides of the source tank body are respectively provided with an avoiding gap and a pull rod hole, and the avoiding gap and the pull rod hole are communicated with the containing cavity. The source tank body is provided with a containing cavity, and both sides of the source tank body are respectively provided with an avoiding gap and a pull rod hole, and the avoiding gap and the pull rod hole are communicated with the containing cavity. The shielding door is arranged at the avoiding gap and can move relative to the avoiding gap to close or open the avoiding gap. The source tank body is provided with a containing cavity, and both sides of the source tank body are respectively provided with an avoiding gap and a pull rod hole, and the avoiding gap and the pull rod hole are communicated with the containing cavity. The source tank body is provided with a containing cavity, and both sides of the source tank body are respectively provided with an avoiding gap and a pull rod hole, and the avoiding gap and the pull rod hole are communicated with the containing cavity.

2. The radioactive source capsule with transport and origin guiding functions according to claim 1, characterized in that, 4. The radioactive source tank with transportation and source guiding functions according to claim 2, wherein the source tank body is provided with a first threaded hole, the source tank body is provided with a second threaded hole, the second threaded hole is located in the containing cavity, the first threaded hole and the second threaded hole are coaxially arranged, a threaded part is arranged in the first threaded hole and the second threaded hole and is threadedly connected, so as to connect the source tank body and the source tank body.

3. The radioactive source capsule with transport and origin guiding functions according to claim 2, characterized in that, Or, the source tank body is provided with a first clamping block, the source tank body is provided with a first clamping groove, the first clamping groove is arranged in the containing cavity, the first clamping block is clamped with the first clamping groove, and the source tank body and the source tank body are clamped. The internal contour of the source tank body matches the external contour of the source capsule. The external contour of the source tank body matches the internal contour of the source tank body.

7. The radioactive source tank with transportation and source guiding functions according to claim 1, wherein the source tank body is provided with a source capsule inlet and outlet coaxially arranged with the avoiding gap, and the source capsule inlet and outlet is communicated with the avoiding gap, so that the source capsule can enter and exit the source tank body through the avoiding gap and the source capsule inlet and outlet. The connecting part of the guide rod assembly is matched with the source capsule, so that the guide rod assembly can pull or push the source capsule into or out of the source tank body.

5. The radioactive source capsule with transport and origin guiding functions according to claim 1, characterized in that, 9. The radioactive source tank with transportation and source guiding functions according to claim 8, wherein the connecting part is provided with a threaded part, the source capsule is provided with a threaded hole, and the threaded part is threadedly connected with the threaded hole.

6. The radioactive source capsule with transport and homing functions according to claim 1, characterized in that, Or, the connecting part is a clamping hook, the source capsule is provided with a clamping hole, the clamping hook is arranged in the clamping hole, and the connecting part is hung with the source capsule. Further comprising: A shielding door driving assembly is arranged for driving the shielding door to move, so that the avoiding gap is closed or opened.

8. The radioactive source capsule with transport and homing functions according to claim 1, characterized in that, A locking structure is arranged for preventing the shielding door from moving relative to the avoiding gap. The radioactive source tank with transportation and source guiding functions according to any one of claims 1-10; A support tool is arranged for supporting the radioactive source tank. A radiotherapy device is provided with a source storage bin for placing the source capsule, and the source storage bin can be communicated with the avoiding gap and the source capsule inlet and outlet to form a source replacement channel. ​ 10. The radioactive source capsule with transport and origin guiding functions according to claim 1, characterized in that, ​ ​ ​ 11. A source changing system characterized by comprising: ​ ​ ​ ​ The shielding door is opened, and the guide rod assembly can push the source cassette out of the source cassette chamber through the source changing channel and into the source storage chamber of the radiotherapy device.

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