Radioactive source recovery tank and use method thereof

Abstract

The radioactive source recycling tank comprises a recycling tank body and a first quick connector, the recycling tank body is provided with a storage cavity used for storing a radioactive source, one end of the recycling tank body is provided with a water inlet communicated with the storage cavity, and the other end of the recycling tank body is provided with an opening; the first quick connector is installed at the opening of the recycling tank body in a replaceable mode through a quick connecting structure, when the first quick connector is installed at the opening of the recycling tank body, the first quick connector is provided with a filtering part, one end of the filtering part is communicated with the storage cavity, and a water outlet is formed in the end face or the side face of the first quick connector and communicated with the other end of the filtering part. And the first quick connector is mounted at the opening of the recovery tank body, so that the functions of recovering, storing, cleaning and drying the radioactive source are realized.

Description

Technical Field

[0001] The invention relates to the field of medical devices, in particular to a radioactive source recovery tank and a use method thereof. Background Art

[0002] Radioactive particle implantation surgery is a local radiotherapy procedure in which a large number of radioactive particles are implanted directly into the tumor through a puncture needle. This surgery has a wide range of indications, including lung cancer, liver cancer, breast cancer, prostate cancer, etc., and it has small incisions, little bleeding, and relatively few surgical complications, but it can effectively inhibit tumor growth.

[0003] The basic process of this surgery is to first take a preoperative CT scan, determine the puncture path and particle layout plan in the TPS system, and then insert many puncture needles into the tumor according to the plan. This process can be completed with the help of a puncture guide template to ensure that the spacing and direction between each needle are consistent with the preoperative plan. After confirming through CT that all puncture needles have reached the target position, the doctor then pushes multiple particles into the tumor according to the preoperative plan through the channel established by the puncture needle to complete the surgery.

[0004] However, the operation time is relatively long, and doctors need to be in close contact with the particles during the implantation process, which causes great radiation damage, which greatly limits the application and promotion of this type of surgery. Therefore, the particle implantation robot system came into being.

[0005] After the particle implantation robot system completes the implantation, there are still radioactive particles left in the magazine, so the remaining radioactive particles need to be recovered. The recovery process involves cleaning, drying, and reloading the particles. During this process, the particles are exposed and will still cause certain radiation damage to the operator. Summary of the invention

[0006] The purpose of the present invention is to provide a radioactive source recovery tank and a method of using the same, so as to solve the existing technical defects and unattainable technical requirements.

[0007] To achieve the above object, the present invention provides the following technical solutions: A radioactive source recovery tank comprises a recovery tank body and a first quick connector, wherein the recovery tank body is provided with a storage cavity for storing radioactive sources, one end of the recovery tank body is provided with a water inlet connected to the storage cavity, the other end of the recovery tank body is provided with an opening, the first quick connector is replaceably installed at the opening of the recovery tank body through a quick connector structure, when the first quick connector is installed at the opening of the recovery tank body, the first quick connector is provided with a filter part, one end of the filter part is connected to the storage cavity, the end face or side of the first quick connector is provided with a drain port, and the drain port is connected to the other end of the filter part.

[0008] Preferably, a water passage cavity is provided in the first quick connector, and the water passage cavity is connected to the filter part and the drain outlet respectively. The drainage paths of the filter part, the water passage cavity and the drain outlet are arranged in a broken line. When there is a radioactive source in the storage cavity, the radiation transmitted from the filter part cannot leak directly from the drain outlet.

[0009] Preferably, a second quick connector is further included, which is replaceably installed at the opening of the recovery tank body through a quick connection structure. When the second quick connector is installed at the opening of the recovery tank body, the second quick connector is provided with a discharge port for facilitating the output of the radioactive sources one by one, and the discharge port is connected to the storage cavity. A trumpet-shaped cavity is provided in the second quick connector, and the large-diameter end of the cavity extends to the storage cavity of the recovery tank body, and the small-diameter end of the cavity extends to the discharge port. The diameter of the discharge port is 0.1-0.3 mm larger than the diameter of the radioactive source.

[0010] Preferably, the first quick connector includes a first baffle and a second baffle, the first baffle is located outside the second baffle, a mounting port is provided on the second baffle, the filter portion uses a filter screen, the filter screen is installed at the mounting port, a drain port is provided on the second baffle, the drain port and the mounting port are staggered, the diameter of the filter holes on the filter screen is smaller than the diameter of the radiation source, the first baffle and the second baffle are fixedly connected, a water passage cavity is formed between the first baffle and the second baffle, the water passage cavity is communicated with the mounting port and the drain port respectively, and the first baffle and the second baffle are sealed by a first sealing ring; Alternatively, the drain port is arranged on the side of the first quick connector, the water passage cavity presents a 90-degree bent channel, one end of the water passage cavity extends from the installation port, and the other end of the water passage cavity extends to the drain port.

[0011] Preferably, the quick-connect structure adopts one or a combination of a bolt structure, a plug-in structure, a threaded structure, a snap-on structure or a lock structure; a second sealing ring is provided between the recovery tank body and the first quick-connect connector to achieve sealing fit.

[0012] Preferably, a joint for connecting to an external air pipe or water pipe is installed at the water inlet of the recovery tank body, and the joint is provided with a joint hole communicating with the storage cavity along its axial direction, and a plug for sealing the joint hole is connected to the joint. When the first quick connector is installed at the opening of the recovery tank body, a first blocking rod is provided on the plug, and the first blocking rod passes through the joint hole of the joint and seals the joint hole.

[0013] Preferably, a joint for connecting to an external air pipe or water pipe is installed at the water inlet of the recovery tank body, and the joint is provided with a joint hole connected to the storage cavity along its axial direction, and a plug for sealing the joint hole is connected to the joint. When the second quick joint is installed at the opening of the recovery tank body, a second blocking rod is provided on the plug, and the second blocking rod passes through the joint hole of the joint. The diameter of the end of the second blocking rod is smaller than the diameter of the discharge port, and the end of the second blocking rod is inserted into the discharge port to seal the discharge port.

[0014] Preferably, the recovery tank body is provided with number and / or barcode information, and the recovery tank body is provided with a storage chip, and the storage chip is read and written by conductive contacts or wireless induction.

[0015] A method for using a radioactive source recovery tank comprises the following steps: (1) removing a first quick connector or a second quick connector of a radioactive source recovery tank from an opening of a recovery tank body, loading a clean radioactive source into the opening, and installing the second quick connector into the opening of the recovery tank body; (2) vibrating the radioactive source recovery tank so that the radioactive sources are output one by one from the radioactive source recovery tank, and loading the output radioactive sources into a magazine one by one through a loader; (3) after disinfecting and sterilizing the magazine, implanting the radioactive source in the magazine through a radioactive source implanter or manually, after the implantation of the radioactive source is completed, discharging the remaining radioactive source in the magazine into a radioactive source recovery tank through a water inlet, and ensuring that the first quick connector has been installed into the opening of the recovery tank body; (4) connecting a water pipe to the connector, and using the water pipe to clean the radioactive source in the radioactive source recovery tank, while shaking the radioactive source recovery tank, and drying after cleaning to complete the recovery of the radioactive source.

[0016] Preferably, in step (2), when loading is completed, the corresponding radioactive source information of the storage chip in the radioactive source recovery tank is deleted by the loader; in step (3), when the remaining radioactive sources in the magazine are discharged into a radioactive source recovery tank through the water inlet, the corresponding radioactive source information is written into the storage chip in the radioactive source recovery tank by the radioactive source implanter.

[0017] The beneficial effects of the present invention are: 1. The first quick connector and the second quick connector are switched and installed at the opening of the recovery tank body to realize the switching of the functions of recovery storage, cleaning, drying and reloading of radioactive sources. During the whole process, the radioactive source is in the shielding container to avoid radiation leakage; 2. The drainage paths of the filter part, water cavity and drain outlet in the first quick connector are arranged in a zigzag shape, which can prevent the radiation overflow of the radioactive source in the storage cavity while draining water; 3. The trumpet-shaped concave cavity and the discharge port inside the second quick connector ensure the orderly output of the radioactive source; 4. When the second quick connector is installed at the opening of the recovery tank body, the second blocking rod blocks the discharge port. The second blocking rod can prevent the radioactive source of the recovery tank body from leaking from the water inlet and the discharge port at the same time, which can simplify the blocking method of the shielding container. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is a schematic diagram of the structure of the first quick connector installed on the recovery tank body of Example 1; FIG2 is a side cross-sectional view of the recovery tank body of Example 1 with the first quick connector installed; FIG3 is a partial enlarged view of the first quick connector of Example 1; FIG4 is a side view of a drain port disposed on the first quick connector; FIG5 is a schematic diagram of the structure of the second quick connector installed on the recovery tank body of Example 1; FIG. 6 is a side cross-sectional view of the recovery tank body of Example 1 with the second quick connector installed. DETAILED DESCRIPTION

[0019] 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 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 creative work are within the scope of protection of the present invention. Example 1

[0020] As shown in Figures 1 to 6, a radioactive source recovery tank includes a recovery tank body 1 and a first quick connector 2. The recovery tank body 1 is provided with a storage cavity 101 for storing radioactive sources. One end of the recovery tank body 1 is provided with a water inlet 102 connected to the storage cavity 101, and the other end of the recovery tank body 1 is provided with an opening. The first quick connector 2 can be replaceably installed at the opening of the recovery tank body 1 through a quick connection structure. When the first quick connector 2 is installed at the opening of the recovery tank body 1, the first quick connector 2 is provided with a filter part 201, one end of the filter part 201 is connected to the storage cavity 101, and the end face or side of the first quick connector 2 is provided with a drain port 202, and the drain port 202 is connected to the other end of the filter part 201.

[0021] A water passage cavity 203 is provided in the first quick connector 2, and the water passage cavity 203 is connected to the filter part 201 and the drain port 202 respectively. The filter part 201, the water passage cavity 203 and the drain port 202 are arranged in a broken line. When there is a radioactive source in the storage cavity 101, the radiation transmitted from the filter part 201 cannot be directly leaked out from the drain port 202.

[0022] The first quick connector 2 includes a first baffle 204 and a second baffle 205. The first baffle 204 is located on the outer side of the second baffle 205. The second baffle 205 is provided with a mounting port 2051. The filter portion 201 adopts a filter screen, which is installed at the mounting port 2051. The filter screen is positioned and installed by tightening screws, which is also convenient for disassembling and assembling the filter screen. The drain port 202 is opened on the second baffle 205. The drain port 202 and the mounting port 2051 are staggered. The diameter of the filter hole on the filter screen is smaller than the diameter of the radiation source. The first baffle 204 and the second baffle 205 are fixedly connected. The fixing method can be one or a combination of a plug-in structure, a threaded structure, a snap-on structure or a lock structure. A water passage cavity 203 is formed between the first baffle 204 and the second baffle 205. The water passage cavity 203 is communicated with the mounting port 2051 and the drain port 202 respectively. The first baffle 204 and the second baffle 205 The first sealing ring 206 is used to seal the two. The filter part can also be a plurality of filter holes directly opened on the second baffle plate, and the diameter of the filter hole is smaller than the diameter of the radiation source. As an alternative, as shown in FIG. 4 , the drain port 202 is disposed on the side of the first quick connector 2 , the water passage chamber 203 presents a 90-degree bent channel, one end of the water passage chamber 203 extends from the installation port, and the other end of the water passage chamber 203 extends to the drain port 202 .

[0023] The quick-connect structure adopts one or a combination of a bolt structure, a plug-in structure, a threaded structure, a buckle structure or a lock structure; a second sealing ring 4 is provided between the recovery tank body 1 and the first quick-connector 2 to achieve sealing cooperation.

[0024] A connector 5 for connecting to an external air pipe or water pipe is installed at the water inlet 102 of the recovery tank body 1. The connector 5 is provided with a connector hole communicating with the storage chamber 101 along its axial direction. A plug 6 for blocking the connector hole is connected to the connector 5. When the first quick connector 2 is installed at the opening of the recovery tank body 1, a first blocking rod 7 is provided on the plug 6. The first blocking rod 7 passes through the connector hole of the connector and blocks the connector hole. The plug 6 is fixedly connected to the recovery tank body 1 through a flexible connecting strip 9, which effectively prevents the plug 6 from falling off and being lost.

[0025] The second quick connector 3 is also included. The second quick connector 3 can be replaceably installed at the opening of the recovery tank body 1 through a quick connection structure. When the second quick connector 3 is installed at the opening of the recovery tank body 1, the second quick connector 3 is provided with a discharge port 301 for facilitating the output of the radioactive sources one by one. The discharge port 301 is connected to the storage chamber 101. A trumpet-shaped concave cavity 302 is provided in the second quick connector 3. The large diameter end of the concave cavity 302 extends to the storage chamber 101 of the recovery tank body 1, and the small diameter end of the concave cavity 302 extends to the discharge port 301. The diameter of the discharge port 301 is 0.1-0.3 mm larger than the diameter of the radioactive source.

[0026] A joint 5 for connecting to an external air pipe or water pipe is installed at the water inlet 102 of the recovery tank body 1. The joint 5 is provided with a joint hole connected to the storage chamber 101 along its axial direction. A plug 6 for blocking the joint hole is connected to the joint 5. When the second quick connector 3 is installed at the opening of the recovery tank body 1, a second blocking rod 8 is provided on the plug 6. The second blocking rod 8 passes through the joint hole of the joint 5. The diameter of the end of the second blocking rod 8 is smaller than the diameter of the discharge port 301. The end of the second blocking rod 8 is inserted into the discharge port 301 to block the discharge port 301.

[0027] Preferably, the recycling tank body 1 is provided with number and / or barcode information, and a storage chip 10 is provided on the recycling tank body 1 , and the storage chip 10 can be read and written by conductive contacts or wireless induction.

[0028] Example 2 A method for using a radioactive source recovery tank comprises the following steps: (1) Remove the first quick connector or the second quick connector of a radioactive source recovery tank from the opening of the recovery tank body, insert the clean radioactive source from the opening, and install the second quick connector to the opening of the recovery tank body; (2) Vibrating the radioactive source recovery tank causes the radioactive sources to be output one by one from the radioactive source recovery tank, and loading the output radioactive sources one by one into the magazine through a loading machine; (3) After the magazine is disinfected and sterilized, the radioactive source in the magazine is implanted by a radioactive source implanter or manually. After the radioactive source is implanted, the remaining radioactive source in the magazine is discharged into a radioactive source recovery tank through the water inlet, and the first quick connector is ensured to be installed in the opening of the recovery tank body; (4) Connect a water pipe to the joint and use the water pipe to clean the radioactive source in the radioactive source recovery tank. At the same time, shake the radioactive source recovery tank. After cleaning, dry it to complete the recovery of the radioactive source.

[0029] In step (2), when the loading is completed, the corresponding radioactive source information of the storage chip in the radioactive source recovery tank is deleted by the loading machine; in step (3), when the remaining radioactive sources in the magazine are discharged into a radioactive source recovery tank through the water inlet, the corresponding radioactive source information is written into the storage chip in the radioactive source recovery tank by the radioactive source implanter.

[0030] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features 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 attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A radioactive source recovery tank, characterized in that: It includes a recovery tank body and a first quick connector. The recovery tank body is provided with a storage cavity for storing a radioactive source. One end of the recovery tank body is provided with a water inlet connected to the storage cavity. The other end of the recovery tank body is provided with an opening. The first quick connector is replaceably installed at the opening of the recovery tank body through a quick connector structure. When the first quick connector is installed at the opening of the recovery tank body, the first quick connector is provided with a filter part, one end of the filter part is connected to the storage cavity, and an end face or side of the first quick connector is provided with a drain port, which is connected to the other end of the filter part.

2. A radioactive source recovery tank according to claim 1, characterized in that: A water passage cavity is provided in the first quick connector, and the water passage cavity is communicated with the filter part and the drain outlet respectively. The drainage paths of the filter part, the water passage cavity and the drain outlet are arranged in a broken line.

3. A radioactive source recovery tank according to claim 1, characterized in that: It also includes a second quick connector, which is replaceably installed at the opening of the recovery tank body through a quick connection structure. When the second quick connector is installed at the opening of the recovery tank body, the second quick connector is provided with a discharge port for facilitating the output of the radioactive sources one by one, and the discharge port is connected to the storage cavity. A trumpet-shaped cavity is provided in the second quick connector, and the large-diameter end of the cavity extends to the storage cavity of the recovery tank body, and the small-diameter end of the cavity extends to the discharge port. The diameter of the discharge port is 0.1-0.3 mm larger than the diameter of the radioactive source.

4. A radioactive source recovery tank according to claim 2, characterized in that: The first quick connector includes a first baffle and a second baffle, the first baffle is located on the outside of the second baffle, a mounting port is provided on the second baffle, the filter portion adopts a filter screen, the filter screen is installed at the mounting port, a drain port is provided on the second baffle, the drain port and the mounting port are staggered, the diameter of the filter hole on the filter screen is smaller than the diameter of the radiation source, the first baffle and the second baffle are fixedly connected, a water passage cavity is formed between the first baffle and the second baffle, the water passage cavity is communicated with the mounting port and the drain port respectively, and the first baffle and the second baffle are sealed by a first sealing ring; Alternatively, the drain port is arranged on the side of the first quick connector, the water passage cavity presents a 90-degree bent channel, one end of the water passage cavity extends from the installation port, and the other end of the water passage cavity extends to the drain port.

5. The radioactive source recovery tank according to claim 1, characterized in that: The quick-connect structure adopts one or a combination of a bolt structure, a plug-in structure, a threaded structure, a buckle structure or a lock structure; a second sealing ring is provided between the recovery tank body and the first quick-connector to achieve sealing cooperation.

6. The radioactive source recovery tank according to claim 1, characterized in that: A joint for connecting to an external air pipe or water pipe is installed at the water inlet of the recovery tank body. The joint is provided with a joint hole communicating with the storage cavity along its axial direction. A plug for blocking the joint hole is connected to the joint. When the first quick joint is installed on the opening of the recovery tank body, a first blocking rod is provided on the plug. The first blocking rod passes through the joint hole of the joint and blocks the joint hole.

7. The radioactive source recovery tank according to claim 3, characterized in that: A joint for connecting to an external air pipe or water pipe is installed at the water inlet of the recovery tank body. The joint is provided with a joint hole connected to the storage cavity along its axial direction. A plug for sealing the joint hole is connected to the joint. When the second quick joint is installed on the opening of the recovery tank body, a second blocking rod is provided on the plug. The second blocking rod passes through the joint hole of the joint. The diameter of the end of the second blocking rod is smaller than the diameter of the discharge port. The end of the second blocking rod is inserted into the discharge port to seal the discharge port.

8. The radioactive source recovery tank according to claim 1, characterized in that: The recovery tank body is provided with number and / or barcode information, and the recovery tank body is provided with a storage chip, and the storage chip is read and written by conductive contacts or wireless induction.

9. A method for using a radioactive source recovery tank, characterized in that: The following steps are involved: (1) Remove the first quick connector or the second quick connector of a radioactive source recovery tank from the opening of the recovery tank body, insert the clean radioactive source from the opening, and install the second quick connector to the opening of the recovery tank body; (2) Vibrating the radioactive source recovery tank causes the radioactive sources to be output one by one from the radioactive source recovery tank, and loading the output radioactive sources one by one into the magazine through a loading machine; (3) After the magazine is disinfected and sterilized, the radioactive source in the magazine is implanted by a radioactive source implanter or manually. After the radioactive source is implanted, the remaining radioactive source in the magazine is discharged into a radioactive source recovery tank through the water inlet, and the first quick connector is ensured to be installed in the opening of the recovery tank body; (4) Connect a water pipe to the joint and use the water pipe to clean the radioactive source in the radioactive source recovery tank. At the same time, shake the radioactive source recovery tank. After cleaning, dry it to complete the recovery of the radioactive source.

10. The method for using a radioactive source recovery tank according to claim 9, characterized in that: In step (2), when loading is completed, the corresponding radioactive source information of the storage chip in the radioactive source recovery tank is deleted by the loader; in step (3), when the remaining radioactive sources in the magazine are discharged into a radioactive source recovery tank through the water inlet, the corresponding radioactive source information is written into the storage chip in the radioactive source recovery tank by the radioactive source implanter.

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