Cartridge clip with automatic bin door and radioactive source implanting gun

Abstract

The utility model provides a cartridge holder with an automatic bin door and a radioactive source implanting gun, a storage groove for storing a radioactive source is longitudinally arranged in a cartridge holder body, a radioactive source output channel is transversely arranged in the cartridge holder body in a penetrating manner, the end part of the storage groove is communicated with the radioactive source output channel, the cartridge holder body is respectively provided with baffle plates at two sides of the storage groove, and the baffle plates are communicated with the storage groove. The two baffles are respectively arranged in the storage groove in a sliding manner along the longitudinal direction, the inner sides of the two baffles are respectively clung to the radioactive source in the storage groove, and the end parts of the two baffles can extend into the radioactive source output channel; the first elastic element drives the ends of the two baffles through the elastic force of the first elastic element to block the two ends of the radioactive source output channel, the radioactive source is prevented from falling out or radiation leakage is prevented, and when the clip is installed on the external implantation base, the two baffles can automatically open the two ends of the radioactive source output channel. The cartridge holder can effectively prevent a radioactive source in the cartridge holder body from displacing, and the condition that the radioactive source is blocked when being implanted subsequently is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a magazine with an automatic compartment door and a radioactive source implantation gun. Background Art

[0002] Radioactive seed implantation, a type of radiotherapy, primarily involves implanting radioactive isotopes directly into the tumor area for treatment. Currently, this technique primarily utilizes modern imaging techniques (CT, ultrasound, etc.) to implant radioactive nuclides into or around the tumor target. The radioactive nuclides continuously release radiation to kill tumor cells. The implanted particles are typically iodine-125 particles, which have a half-life of 59.6 days and a radiation radius of less than 1.7 cm within the human body. They are safe and easily protected. The gamma rays released by the particles continue to effectively irradiate tumor cells for 180 days, effectively distributing a high dose to the target tumor to kill tumor cells while receiving minimal radiation to surrounding normal tissues, causing no or minimal damage. Essentially, this is a precise radiotherapy method.

[0003] The implantation process of existing particle implantation devices generally involves first puncturing the tumor to the predetermined location with a puncture needle under CT or other imaging guidance. Then, according to the preoperative TPS plan, the particles in the particle magazine are pushed to the appropriate location through the particle gun using a push rod. The puncture needle is then pulled out to the next location, and the push rod is retracted to the rear of the magazine. The particle magazine automatically ejects the next particle, and the above steps are repeated to implant the predetermined number of particles into the tumor.

[0004] Existing particle magazines have limited capacity and lack retaining structures. During transport, particles within the magazines can easily shift, causing some particles to slip out of the storage slots, leading to blockage during loading and implantation. Furthermore, during the implantation procedure, the operator must manually tighten the needle's tail connector to the nozzle of the particle gun. Even a slight loosening can cause the connector to misalign with the nozzle, potentially causing particles to become stuck in the needle's tail connector, affecting the implantation procedure. Summary of the Invention

[0005] The purpose of the utility model is to provide a magazine with an automatic compartment door and a radioactive source implantation gun, so as to solve the existing technical defects and unmet technical requirements.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a magazine with an automatic door, comprising a magazine body, a storage slot for storing a radioactive source longitudinally disposed within the magazine body, a radioactive source output channel transversely disposed through the magazine body, the end of the storage slot being connected to the radioactive source output channel, baffles being respectively provided on either side of the storage slot, the two baffles being longitudinally slidably disposed within the storage slot, the inner sides of the two baffles being respectively in close contact with the radioactive source within the storage slot, the ends of the two baffles being capable of extending into the radioactive source output channel, and a first elastic element being further provided, which, through its own elastic force, drives the ends of the two baffles to block the ends of the radioactive source output channel to prevent the radioactive source from falling out or radiation leakage. When the magazine is mounted on an external implant base, the two baffles automatically open the ends of the radioactive source output channel.

[0007] Preferably, a toggle lever is provided on the side of the baffle, and a notch communicating with the storage slot is provided on the side of the magazine body. The toggle lever extends out of the notch, and the toggle lever acts on the toggle lever to cause the baffle to overcome the elastic force of the first elastic element and slide relative to the magazine body, thereby opening the end of the radiation source output channel; alternatively, the lower ends of the two baffles are connected to form a U-shaped baffle, and a second notch communicating with the storage slot is provided below the magazine body. The U-shaped baffle is pushed through the second notch, which can overcome the elastic force of the first elastic element and cause the U-shaped baffle to slide relative to the magazine body, thereby opening the two ends of the radiation source output channel.

[0008] Preferably, the magazine body includes a main body and a cover plate, and a positioning hook is provided at the lower end of the cover plate. After the cover plate and the main body are fitted together and move toward each other, the positioning hook can clamp the lower end of the main body. The positioning hooks are distributed at the lower left end and the lower right end of the cover plate. The positioning hooks clamp the lower left end and the lower right end of the main body, and the cover plate and the main body are locked by threads or snaps.

[0009] Preferably, the storage slot is arranged on the main body, a compression plate is provided in the storage slot, a spring slot is longitudinally provided in the middle of the storage slot, a second elastic element is provided in the spring slot, and a cap is also provided at the upper end of the main body. The second elastic element is arranged between the compression plate and the cap. The second elastic element drives the compression plate through its own elastic force to press the radioactive source in the storage slot toward the side close to the radioactive source output channel.

[0010] Preferably, a top block is further provided, which is arranged at the end of the magazine body close to the radiation source output channel. The external driving mechanism can drive the top block to move in translation or rotation, thereby driving the top block to push the radiation source located at the intersection of the radiation source output channel and the storage slot into the storage slot. A third elastic element for resetting the top block is provided between the top block and the magazine body.

[0011] Preferably, the main body further includes a limiting piece and a slide groove, the baffle and the first elastic element are arranged in the slide groove, the baffle can slide up and down in the slide groove, the limiting piece covers the first elastic element and the baffle to prevent the first elastic element and the baffle from detaching from the main body, and the limiting piece also covers a portion of the two sides of the storage groove, so that the head and tail ends of the radioactive source are limited, so that the radioactive source compressed by the compression piece cannot detach from the storage groove.

[0012] Preferably, a slope is provided on the side surface of the magazine body, the slope forms a certain inclination angle with the axial direction of the storage slot, and the slope extends outward from top to bottom.

[0013] A radioactive source implantation gun includes a magazine and an implantation gun body. A mounting seat is provided on the implantation gun body. The mounting seat is connected to a guide tube and a docking nozzle at both ends in the transverse direction. The docking nozzle is used to connect with an external puncture needle. When the magazine body of the magazine is installed on the mounting seat, the baffle of the magazine body is resisted by the mounting seat, causing the baffle to move upward, thereby opening both ends of the radioactive source output channel. The two ends of the radioactive source output channel of the magazine body are respectively connected to the guide tube and the docking nozzle.

[0014] Preferably, the docking nozzle and the external puncture needle are docked by one or a combination of a threaded assembly, a locking assembly or a snap assembly. When the docking nozzle and the external puncture needle are docked by the snap assembly, the snap assembly is a mandarin duck snap, and the end of the docking nozzle is provided with a first snap, and the end of the external puncture needle is provided with a second snap that is mutually snapped with the first snap, and also includes a locking sleeve. The locking sleeve is arranged at the position where the first snap and the second snap are snapped, and can clamp the docking nozzle and the external puncture needle to prevent the docking nozzle and the external puncture needle from detaching.

[0015] Preferably, a clamping assembly is provided on the mounting seat, and the clamping assembly is used to lock the magazine body on the mounting seat and provide a continuous locking force so that the two baffles of the magazine are always affected by the resistance of the mounting seat. The clamping assembly is a locking member provided on the mounting seat, and the locking member directly or indirectly resists the inclined surface or slot on the side of the magazine body, and applies a downward locking force to the magazine body through the inclined surface or slot.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. The radiation source is radioactive particles. The first elastic element on the magazine body drives the ends of the two baffles through its own elastic force to block the two ends of the radiation source output channel. The two baffles are directly attached to the particles, completely confining the particles within the storage tank, effectively preventing the particles in the magazine body from displacement. When the particles are implanted later, there will be no blockage.

[0018] 2. When loading the radioactive source into the magazine, the lever of the baffle at one end of the radioactive source output channel can be actively driven, so that the baffle overcomes the elastic force of the first elastic element and slides relative to the magazine body, thereby opening one end of the radioactive source output channel to facilitate the loading of particles from one end of the radioactive source output channel. The baffle at the other end of the radioactive source output channel acts as a stopper for the particles, and the baffle directly contacts one end of the particles, completely confining the particles within the storage slot. When the particles located at the intersection of the storage slot and the radioactive source output channel are subsequently pushed into the storage slot, they will not get stuck.

[0019] 3. The docking nozzle and the external puncture needle are docked through a snap-on assembly, which can prevent the docking nozzle from detaching from the external puncture needle and prevent particles from getting stuck at the tail joint of the puncture needle. After the implantation is completed, the docking nozzle and the external puncture needle can also be easily separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the magazine in Example 1 of the present utility model;

[0021] Figure 2 Schematic diagram of the installation structure of the limiting piece in Example 1 of the present utility model;

[0022] Figure 3 This is a schematic diagram of the installation structure of various components on the main body in Example 1 of the present utility model;

[0023] Figure 4 This is a schematic structural diagram of the cover plate in Example 1 of the present utility model;

[0024] Figure 5 Schematic diagram of the matching structure of the top block and the third spring in Example 1 of the present utility model;

[0025] Figure 6 A schematic diagram showing one end of the radioactive source output channel being in an open state during magazine loading;

[0026] Figure 7 A diagram showing the top block pushing radioactive particles to make room during magazine loading;

[0027] Figure 8 A schematic diagram of an external push rod pushing new radioactive particles into the output channel of the radioactive source during magazine loading;

[0028] Figure 9 A schematic diagram of radioactive particles being pushed into place during magazine loading;

[0029] Figure 10 This is a schematic diagram of the clip body being installed on the implant gun body in Example 2 of the present invention;

[0030] Figure 11 This is a schematic diagram of the first cross-sectional structure of Example 2 of the present utility model;

[0031] Figure 12 Schematic diagram of the matching structure between the locking member and the magazine body in Example 2 of the present utility model;

[0032] Figure 13 This is a schematic diagram of the second cross-sectional structure of Example 2 of the present utility model;

[0033] Figure 14 This is a schematic diagram of the docking nozzle and the external puncture needle in Example 3 of the present utility model being docked via a snap-fit ​​assembly;

[0034] Figure 15 This is a schematic diagram of the partial explosion structure of Example 3 of the present utility model;

[0035] Figure 16 This is a schematic structural diagram of Example 4 of the present utility model. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] Furthermore, 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0039] Example 1

[0040] like Figure 1-Figure 5 As shown: A magazine with an automatic door includes a magazine body 2401, a storage slot 24010201 for storing a radioactive source is longitudinally provided inside the magazine body 2401, wherein the radioactive source is a radioactive particle, a radioactive source output channel 24010206 is transversely provided inside the magazine body 2401, an end of the storage slot 24010201 is communicated with the radioactive source output channel 24010206, and the magazine body 2401 is provided with baffles 24010204 on both sides of the storage slot 24010201, the two baffles 24010204 are respectively slidably provided in the storage slot 24010201 along the longitudinal direction, and the inner sides of the two baffles 24010204 are respectively tightly connected to the radioactive source in the storage slot 24010201. The ends of the two baffles 24010204 can extend into the radiation source output channel 24010206, and also include a first elastic element. The first elastic element drives the ends of the two baffles 24010204 through its own elastic force to block the two ends of the radiation source output channel 24010206 to prevent the radiation source from falling out or radiation leakage. The first elastic element is preferably a first spring 24010205, one end of the first spring 24010205 is abutted on the baffle 24010204, and the other end of the first spring 24010205 is abutted on the magazine body 2401. When the magazine is installed on the external implant base, the two baffles 24010204 will automatically open the two ends of the radiation source output channel 24010206.

[0041] Preferably, a toggle lever 24010207 is fixed or integrally provided on the side of the baffle 24010204. A notch is provided on the side of the magazine body 2401 that communicates with the storage slot 24010201. The toggle lever 24010207 extends out of the notch. Acting on the toggle lever 24010207, the baffle 24010204 overcomes the elastic force of the first elastic element and slides relative to the magazine body 2401, thereby opening the ends of the radiation source output channel 24010206. Specifically, when the magazine is mounted on an external implant base, the toggle levers 24010207 on the two baffles 24010204 are resisted by the external implant base, causing the two baffles 24010204 to slide relative to the magazine body 2401, overcoming the elastic force of the first elastic element, thereby automatically opening the ends of the radiation source output channel 24010206.

[0042] Alternatively, another arrangement of the baffles may be as follows: the lower ends of the two baffles are connected to form a U-shaped baffle, and a second notch connected to the storage slot is provided below the magazine body. The U-shaped baffle is pushed through the second notch to overcome the elastic force of the first elastic element, causing the U-shaped baffle to slide relative to the magazine body, thereby opening both ends of the radiation source output channel.

[0043] Preferably, the magazine body 2401 includes a main body 240102 and a cover plate 240101, and the lower end of the cover plate 240101 is fixed or integrally provided with a positioning hook 24010101. After the cover plate 240101 and the main body 240102 are fitted together and move toward each other, the positioning hook 24010101 can be clamped to the lower end of the main body 240102. The positioning hooks 24010101 are distributed at the lower left end and the lower right end of the cover plate 240101. The positioning hooks 24010101 clamp to the lower left end and the lower right end of the main body 240102, and the cover plate 240101 and the main body 240102 are locked by threads or snaps.

[0044] Furthermore, the upper ends of the cover 240101 and the main body 240102 are locked by bolts 24010102. When disassembly is required, the bolts 24010102 are unscrewed, and the cover 240101 and the main body 240102 are slid in opposite directions, so that the cover 240101 and the main body 240102 can be quickly disassembled.

[0045] Preferably, the storage slot 24010201 is arranged on the main body 240102, a compression plate 24010202 is provided in the storage slot 24010201, a spring slot 240102011 is longitudinally provided in the middle part of the storage slot 24010201, a second elastic element is provided in the spring slot 240102011, and a cap 240103 is also provided at the upper end of the main body 240102, the second elastic element is arranged between the compression plate 24010202 and the cap 240103, and the second elastic element drives the compression plate 24010202 through its own elastic force to press the radioactive source in the storage slot 24010201 toward the side close to the radioactive source output channel 24010206. The second elastic element is preferably a second spring 24010203, one end of the second spring 24010203 is against the pressing piece 24010202, and the other end of the first spring 24010205 is against the cover cap 240103.

[0046] Preferably, the main body 240102 also includes a limiting piece 240104 and a slide groove 240105, the baffle 24010204 and the first elastic element are arranged in the slide groove 240105, the baffle 24010204 can slide up and down in the slide groove 240105, and the limiting piece 240104 is fixedly set on the main body 240102, and the limiting piece 240104 covers the first elastic element and the baffle 24010204 to prevent the first elastic element and the baffle 24010204 from detaching from the main body 240102, and the limiting piece 240104 also covers a part of the two sides of the storage slot 24010201, so that the head and tail ends of the radioactive source are limited, so that the radioactive source compressed by the compression piece 24010202 cannot detach from the storage slot 24010201. During installation, the baffle 24010204 , the first elastic element, the pressing piece 24010202 and the second elastic element can be installed first, and then the limiting piece 240104 can be fixed on the main body 240102 .

[0047] Preferably, a slot 24010209 is provided on the side of the magazine body 2401, and a guide surface 24010213 is provided below the slot 24010209 on the magazine body 2401. The guide surface 24010213 is inclined from top to bottom, and the upper end of the guide surface 24010213 extends to the end of the slot 24010209.

[0048] Preferably, a top block 24010210 is also provided, and the top block 24010210 is arranged at the end of the magazine body 2401 close to the radiation source output channel 24010206. The external driving mechanism can drive the top block 24010210 to move in translation or rotation, thereby driving the top block 24010210 to push the radiation source in the radiation source output channel 24010206 into the storage slot 24010201. A third elastic element for resetting the top block 24010210 is provided between the top block 24010210 and the magazine body 2401.

[0049] Furthermore, the top block 24010210 is slidably set on the main body 240102, and a top rod 24010211 is fixed or integrated on the top block 24010210. The external driving mechanism pushes the top block 24010210, thereby driving the top rod 24010211 into the radiation source output channel 24010206. The third elastic element is preferably a third spring 24010212, one end of the third spring 24010212 is against the top block 24010210, and the other end of the third spring 24010212 is against the main body 240102.

[0050] Specific steps for loading the magazine with radioactive particles:

[0051] 1. If Figure 6, the operator only moves the toggle lever 24010207 on one side upwards, at which time one end of the radiation source output channel 24010206 is blocked, but the other end is open;

[0052] 2. If Figure 7 The operator pushes the push block 24010210 through the external driving mechanism 1, driving the push rod 24010211 on the push block 24010210 to push the radioactive particles in the radioactive source output channel 24010206 into the storage tank 24010201, leaving space for one particle in the radioactive source output channel 24010206;

[0053] 3. If Figure 8 , then insert a new radioactive particle from the open end of the radioactive source output channel 24010206 and push it in through the push rod 2;

[0054] 4. If Figure 9 , the push rod 2 pushes the radioactive particles until the radioactive particles hit the baffle 24010204 at the end that closes the radiation source output channel 24010206. At this time, the radioactive particles are just below the storage tank 24010201. Then the push rod 24010211 on the top block 24010210 is driven to push the newly inserted radioactive particles in the radiation source output channel 24010206 into the storage tank 24010201. The above process is repeated until multiple particles are loaded into the storage tank 24010201.

[0055] Through the limiting effect of the baffle 24010204 which is in close contact with the radioactive particles, each time a new radioactive particle is inserted, it is exactly located at the point where the storage tank 24010201 and the radiation source output channel 24010206 converge (without protruding beyond). In this way, the radioactive particle is pushed into the storage tank 24010201 by the top rod 24010211 on the top block 24010210 and will not be stuck and damaged.

[0056] Example 2

[0057] like Figure 10-13As shown, a radioactive source implantation gun includes a magazine and an implantation gun body 2402. A mounting seat 240201 is provided on the implantation gun body 2402. The mounting seat 240201 is connected to a guide tube 240202 and a docking nozzle 240203 at both ends in the horizontal direction. The docking nozzle 240203 is used to directly dock with an external puncture needle. When the magazine body 2401 of the magazine is installed on the mounting seat 240201, the two baffles 24010204 of the magazine body 2401 are affected by the resistance of the mounting seat 240201. The baffles 24010204 overcome the elastic force of the first elastic element and slide relative to the magazine body 2401, thereby opening the two ends of the radioactive source output channel 24010206. The two ends of the radioactive source output channel 24010206 of the magazine body 2401 are respectively connected to the guide tube 240202 and the docking nozzle 240203.

[0058] Preferably, a clamping assembly is provided on the mounting seat 240201, and the clamping assembly is used to lock the magazine body 2401 on the mounting seat 240201 and provide a continuous locking force so that the two baffles 24010204 of the magazine are always subject to the resistance of the mounting seat 240201. The clamping assembly is a locking member arranged on the mounting seat 240201, and the locking member indirectly resists the slot on the side of the magazine body 2401 and applies a downward locking force to the magazine body 2401 through the slot.

[0059] Further, specifically, the mounting seat 240201 is provided with a mounting groove for mounting the magazine body 2401, the locking member is a locking rod 24020101 provided on the mounting seat 240201, the locking rod 24020101 is provided on the mounting seat 240201 so as to move along its axial direction, the pressing end of the locking rod 24020101 extends out of the mounting seat 240201 and is fixedly or integrally provided with a pressing block 24020103, the side of the locking rod 24020101 is provided with a locking pin 24020102, and further includes a fourth elastic element. The fourth elastic element applies a thrust to the locking rod 24020101 to move outward through its own elastic force. The fourth elastic element is preferably a fourth spring 24020104. One end of the fourth spring 24020104 is against the locking rod 24020101, and the other end of the fourth spring 24020104 is against the mounting seat 240201. The mounting seat 240201 is provided with a limiting groove 24020105 for the locking pin 24020102 to extend into. The limiting groove 24020105 is arranged along the axial direction of the locking rod 24020101. The tightening pin 24020102 contacts the end of the limiting groove 24020105, thereby preventing the locking rod 24020101 from being separated from the mounting seat 240201. The magazine body 2401 is provided with a guide surface 24010213 on the side near the locking pin 24020102, and a slot 24010209 is provided at the upper end of the guide surface 24010213. When the magazine body 2401 is inserted into the mounting groove, the locking pin 24020102 first contacts the guide surface 24010213 and is moved along the guide surface 24010213. The fourth elastic element is compressed while moving. When the locking pin 24020102 moves to the top of the guide surface 24010213, the locking pin 24020102 is inserted into the slot 24010209 under the action of the fourth elastic element, and the magazine body 2401 is locked on the mounting seat 240201. When the magazine body 2401 needs to be taken out, it is only necessary to press the pressing block 24020103 of the locking rod 24020101, move the locking pin 24020102 out of the slot 24010209, and then take out the magazine body 2401.

[0060] Preferably, a handle 240205 for hand holding is provided on the mounting seat 240201.

[0061] Working principle of the radioactive source implantation gun: The magazine body 2401 is installed on the implantation gun body 2402, and the two baffles 24010204 open the two ends of the radioactive source output channel 24010206, so that the two ends of the radioactive source output channel 24010206 of the magazine are connected to the guide tube 240202 and the docking nozzle 240203 respectively. The operator holds the handle 240205 of the implantation gun body 2402, controls the docking nozzle 240203 to connect with the external puncture needle, and then pushes the push rod from the guide tube 240202 to push the radioactive particles in the storage tank 24010201 along the radioactive source output channel 24010206, and implants the radioactive particles into the target object along the docking nozzle 240203 and the external puncture needle. When the push rod returns to the rear of the magazine body 2401, the next particle in the storage tank 24010201 is ejected into the radioactive source output channel 24010206.

[0062] Example 3

[0063] The parts of this embodiment that are identical in structure to embodiment 2 are not described in detail. The difference is that the docking nozzle 240203 and the external puncture needle 2402002 are docked by one or a combination of a threaded assembly, a locking assembly or a snap-on assembly.

[0064] Further, such as Figure 14 and Figure 15 As shown, when the docking nozzle 240203 and the external puncture needle 2402002 are docked through the clamping assembly, the clamping assembly is a mandarin duck clamp, the front end of the docking nozzle 240203 is provided with a first clamp 2402031, the end of the external puncture needle 2402002 is provided with a second clamp 24020021 that is mutually clamped with the first clamp 2402031, and the outer diameter of the docking nozzle 240203 and the external puncture needle 2402002 at the mutually clamped position is determined by the outer diameter of the docking nozzle 240203 and the external puncture needle 2402002 at the mutually clamped position. 203 gradually increases in the direction of the external puncture needle 2402002, and also includes a locking sleeve 240204. The locking sleeve 240204 is first put on the docking mouth 240203, and the locking sleeve 240204 is slid to the position where the first buckle 2402031 and the second buckle 24020021 are engaged, which can hold the docking mouth 240203 and the external puncture needle 2402002 tightly and prevent the docking mouth 240203 and the external puncture needle 2402002 from detaching.

[0065] Furthermore, the external puncture needle 2402002 passes through the second buckle 24020021, and a tube tail 24020022 extends from the rear end of the second buckle 24020021. After the first buckle 2402031 and the second buckle 24020021 are engaged with each other, the docking nozzle 240203 and the tube tail 24020022 are precisely docked to ensure that the inner cavity between the docking nozzle 240203 and the external puncture needle 2402002 is continuous, avoiding the problem of the radioactive source getting stuck at the joint where the first buckle 2402031 and the second buckle 24020021 are engaged with each other.

[0066] Example 4

[0067] The parts of this embodiment that are identical in structure to those of embodiment 2 are not described in detail. The differences are as follows: a slope 24010208 is provided on the side of the magazine body 2401. The slope 24010208 is at a certain inclination angle to the axial direction of the storage slot. The slope 24010208 extends outward from top to bottom. The locking member directly abuts against the slope on the side of the magazine body and applies a downward locking force to the magazine through the slope.

[0068] Further, specifically, Figure 16 As shown, the locking member is a screw 2404 set on the left and right, and the screw 2404 is screwed on the mounting seat 240201. When the magazine body 2401 is inserted into the mounting groove of the mounting seat 240201, the screw 2404 is tightened so that the end of the screw 2404 rests on the inclined surface 24010208 on the side of the magazine body 2401, and the magazine body 2401 is locked on the mounting seat 240201. When the magazine body 2401 needs to be removed, it is only necessary to loosen the screw 2404 and then remove the magazine body 2401.

[0069] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A magazine with an automatic door, characterized in that: The clip body includes a storage slot for storing a radioactive source provided longitudinally inside the clip body, a radioactive source output channel provided transversely through the clip body, and an end of the storage slot being connected to the radioactive source output channel. The clip body is provided with baffles on both sides of the storage slot, the two baffles being respectively slidably arranged in the storage slot along the longitudinal direction, the inner sides of the two baffles being respectively in close contact with the radioactive source in the storage slot, and the ends of the two baffles being extendable into the radioactive source output channel. The clip body also includes a first elastic element, which drives the ends of the two baffles through its own elastic force to block the two ends of the radioactive source output channel to prevent the radioactive source from falling out or radiation leakage. When the clip is mounted on an external implant base, the two baffles automatically open the two ends of the radioactive source output channel.

2. The magazine with an automatic door according to claim 1, characterized in that: A toggle lever is provided on the side of the baffle, and a notch communicating with the storage slot is provided on the side of the magazine body. The toggle lever extends out of the notch. By acting on the toggle lever, the baffle overcomes the elastic force of the first elastic element and slides relative to the magazine body, thereby opening the end of the radiation source output channel; alternatively, the lower ends of the two baffles are connected to form a U-shaped baffle, and a second notch communicating with the storage slot is provided below the magazine body. The U-shaped baffle is pushed through the second notch to overcome the elastic force of the first elastic element, causing the U-shaped baffle to slide relative to the magazine body, thereby opening the two ends of the radiation source output channel.

3. The magazine with an automatic door according to claim 1, characterized in that: The magazine body includes a main body and a cover plate. A positioning hook is provided at the lower end of the cover plate. After the cover plate and the main body are fitted together and move toward each other, the positioning hook can clamp the lower end of the main body. The positioning hooks are distributed at the lower left and lower right ends of the cover plate. The positioning hooks clamp the lower left and lower right ends of the main body. The cover plate and the main body are locked by threads or snaps.

4. The magazine with an automatic door according to claim 3, characterized in that: The storage slot is arranged on the main body, and a compression plate is provided in the storage slot. A spring slot is longitudinally provided in the middle of the storage slot, and a second elastic element is provided in the spring slot. A cover cap is also provided at the upper end of the main body, and the second elastic element is arranged between the compression plate and the cover cap. The second elastic element drives the compression plate through its own elastic force to compress the radioactive source in the storage slot toward the side close to the radioactive source output channel.

5. The magazine with an automatic door according to claim 1, characterized in that: A top block is also provided, which is arranged at the end of the magazine body near the radiation source output channel. The external driving mechanism can drive the top block to move in translation or rotation, thereby driving the top block to push the radiation source located at the intersection of the radiation source output channel and the storage slot into the storage slot. A third elastic element for resetting the top block is provided between the top block and the magazine body.

6. The magazine with an automatic door according to claim 4, characterized in that: The main body also includes a limiting piece and a slide groove. The baffle and the first elastic element are arranged in the slide groove. The baffle can slide up and down in the slide groove. The limiting piece covers the first elastic element and the baffle to prevent the first elastic element and the baffle from detaching from the main body. The limiting piece also partially covers both sides of the storage groove, so that the front and rear ends of the radioactive source are limited, so that the radioactive source compressed by the compression piece cannot detach from the storage groove.

7. The magazine with an automatic door according to claim 1, characterized in that: The side surface of the magazine body is provided with an inclined surface, the inclined surface forms a certain inclination angle with the axial direction of the storage slot, and the inclined surface extends outward from top to bottom.

8. A radioactive source implantation gun, characterized in that: The radioactive source implantation gun comprises the magazine according to any one of claims 1 to 7, and further comprises an implantation gun body, the implantation gun body being provided with a mounting seat, the mounting seat being connected to a guide tube and a docking nozzle at both ends in the lateral direction, the docking nozzle being used to dock with an external puncture needle, and when the magazine body of the magazine is mounted on the mounting seat, the baffle of the magazine body is resisted by the mounting seat, causing the baffle to move upward, thereby opening both ends of the radioactive source output channel, and the two ends of the radioactive source output channel of the magazine body are respectively connected to the guide tube and the docking nozzle.

9. The radioactive source implantation gun according to claim 8, characterized in that: The docking nozzle and the external puncture needle are docked by one or a combination of a threaded component, a locking component or a snap-on component. When the docking nozzle and the external puncture needle are docked by the snap-on component, the snap-on component is a mandarin duck snap-on component, and the end of the docking nozzle is provided with a first snap-on component, and the end of the external puncture needle is provided with a second snap-on component that is snap-on with the first snap-on component. It also includes a locking sleeve, which is arranged at the position where the first snap-on component and the second snap-on component are snap-oned, and can clamp the docking nozzle and the external puncture needle to prevent the docking nozzle and the external puncture needle from detaching.

10. The radioactive source implantation gun according to claim 8, characterized in that: A clamping assembly is provided on the mounting seat, which is used to lock the magazine body on the mounting seat and provide a continuous locking force so that the two baffles of the magazine are always affected by the resistance of the mounting seat. The clamping assembly is a locking member provided on the mounting seat, and the locking member directly or indirectly resists the inclined surface or slot on the side of the magazine body, and applies a downward locking force to the magazine body through the inclined surface or slot.

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