CN212515058U - Guide member for assisting radioactive particle activity measurement and automation device - Google Patents
Guide member for assisting radioactive particle activity measurement and automation device Download PDFInfo
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- CN212515058U CN212515058U CN202021830054.8U CN202021830054U CN212515058U CN 212515058 U CN212515058 U CN 212515058U CN 202021830054 U CN202021830054 U CN 202021830054U CN 212515058 U CN212515058 U CN 212515058U
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Abstract
The utility model relates to a guide component and an automation device for assisting the activity measurement of radioactive particles, wherein the guide component comprises a cylindrical body, an inverted cone groove is arranged on the first end surface of the cylindrical body, and a central through hole which penetrates through the cylindrical body is arranged at the central position of the inverted cone groove so as to guide the motion direction of the radioactive particles; a circular groove which takes the central through hole as the center is arranged on the second end surface of the cylindrical body, the shape and the size of the circular groove are adapted to the particle inlet and outlet end surfaces of the measuring frame, so that when the circular groove is matched with the measuring frame, the central through hole of the cylindrical body is right opposite to the measuring tube at the center of the measuring frame; the circular groove is further provided with a second annular groove concentric with the circular groove, and the shape and the size of the second annular groove are matched with the end face of the cap of the source tank for containing radioactive particles, so that the second annular groove can be matched with the cap. The guide component and the automatic device are beneficial to improving the convenience, accuracy and safety of radioactive particle activity measurement.
Description
Technical Field
The utility model belongs to the field of medical equipment, concretely relates to a guide member and automation equipment for assisting radioactive particle activity measurement.
Background
Radiation therapy is one of the three main approaches to tumor treatment at present. With the increasing demands on health and the continuous progress of medical detection, more and more tumors are discovered early and can be treated to obtain better curative effect. Radiation therapy plays a very important role in the treatment of tumors. The curative effect of simple radiotherapy of some tumors such as nasopharyngeal carcinoma, cervical cancer, breast cancer, prostatic cancer and the like cannot be replaced by other treatment modes. Over 60-70% of the patients in current tumor treatments require radical or adjuvant radiation therapy. The ultimate goal of radiation therapy is to try to improve the gain ratio of radiation therapy, deliver sufficient radiation dose to the tumor area, and simultaneously, minimize or prevent unnecessary radiation to surrounding normal tissues and organs, and avoid other complications caused by radiation therapy.
In the prior art, radiation therapy is mainly divided into external irradiation and brachytherapy. The external irradiation technology is rapidly developed under the development of computer technology and is widely applied to clinical treatment, but the close-range internal irradiation radiation therapy is also an irreplaceable technology in the clinical treatment. Radioactive seed implantation is one of the effective modalities of brachytherapy with external irradiation irreplaceable therapeutic gain ratios. Because the radioactive particles are placed on the tumor part of a patient by means of operation, the radioactive particles can fully irradiate the tumor area and can well protect normal organs near the tumor. Accurate measurement of the activity of the particles prior to implantation of the particles into the patient's body is a critical component of the radiation treatment planning system and the accurate dose delivered to the actual patient. National standards require that the accurate activity of particles be measured in about 10% of the sampling of the particles implanted in patients. In clinical practice, because a plurality of particles are required to be measured, and the particles have radioactivity, the protection requirement on workers is high. The whole set of protective clothing including the lead clothing, the lead muffler, the lead gloves, the lead cap and the like is worn by a measurer, and great inconvenience is caused when corresponding operation is carried out. Without effective personal protection and with danger to the measurement operator. Therefore, how to improve the convenience, accuracy and safety of particle activity measurement is a problem which needs to be solved urgently at present. To solve the above technical problems, two main points are involved: firstly, how to make particles smoothly enter and exit a measuring frame before and after the particles are measured; secondly, how to improve the automation degree of the whole measuring process. Based on this, the utility model provides a guide member and automation equipment for assisting radioactive particle activity measurement.
Disclosure of Invention
An object of the utility model is to provide a guide member and automation equipment for assisting radioactive particle activity measurement, this guide member and automation equipment are provided with and do benefit to convenience, accuracy and the security that improves the radioactive particle activity measurement.
In order to achieve the above object, the utility model adopts the following technical scheme: a guide component for assisting the activity measurement of radioactive particles comprises a cylindrical body, wherein an inverted cone-shaped groove is arranged on a first end surface of the cylindrical body, and a central through hole penetrating through the cylindrical body is formed in the central position of the inverted cone-shaped groove along the height direction of the cylindrical body so as to guide the movement direction of the radioactive particles; the second end face of the cylindrical body is provided with a circular groove taking the central through hole as the center, the shape and the size of the circular groove are matched with the particle inlet and outlet end faces of a measuring frame for measuring the activity of particles, so that when the circular groove is matched with the measuring frame, the central through hole of the cylindrical body is right opposite to the measuring tube at the center of the measuring frame; the circular groove is further provided with a second annular groove concentric with the circular groove, and the shape and the size of the second annular groove are matched with the end face of the cap of the source tank for containing radioactive particles, so that when the second annular groove is matched with the cap, the central through hole of the columnar body is aligned to the middle part of the cap.
Further, the cylindrical body is a cylinder.
Further, the shape and size of the central through hole is adapted to the radioactive particles so that they can just pass through the central through hole.
Furthermore, a first annular groove concentric with the first end face of the cylindrical body is arranged on the outer peripheral part of the inverted conical groove, and the shape and the size of the first annular groove are matched with the particle inlet and outlet end faces of the measuring frame, so that the first annular groove can be matched with the measuring frame.
The utility model also provides an automation equipment for assisting radioactive particle activity measurement, including base, rotating bracket, measuring stand, guide member and source tank mounting bracket, install the third telescopic machanism on the base, the rotating bracket is connected with the motion end rotation of third telescopic machanism, and is rotated by the third motor drive that is fixedly installed on the motion end of third telescopic machanism, so that the rotating bracket can both move up and down and rotate; the measuring frame is arranged on the rotating bracket; the guide member is positioned on the upper side of the measuring frame, the rotating support is provided with a first telescopic mechanism, the guide member is rotatably connected with the moving end of the first telescopic mechanism and is driven to rotate by a first motor fixedly arranged on the moving end of the first telescopic mechanism, so that the guide member can move up and down and can rotate; the source tank mounting frame is positioned on the upper side of the guide member, the rotating support is further provided with a second telescopic mechanism, and the source tank mounting frame is fixedly connected with the moving end of the second telescopic mechanism so that the source tank mounting frame can move up and down;
the guide component comprises a cylindrical body, wherein an inverted cone-shaped groove is arranged on the first end surface of the cylindrical body, and a central through hole penetrating through the cylindrical body is formed in the central position of the inverted cone-shaped groove along the height direction of the cylindrical body so as to guide the movement direction of radioactive particles; the second end face of the cylindrical body is provided with a circular groove taking the central through hole as the center, the shape and the size of the circular groove are matched with the particle inlet and outlet end faces of a measuring frame for measuring the activity of particles, so that when the circular groove is matched with the measuring frame, the central through hole of the cylindrical body is right opposite to the measuring tube at the center of the measuring frame; the circular groove is further provided with a second annular groove concentric with the circular groove, and the shape and the size of the second annular groove are matched with the end face of the cap of the source tank for containing radioactive particles, so that when the second annular groove is matched with the cap, the central through hole of the columnar body is aligned to the middle part of the cap; the first end surface of the columnar body is provided with a first annular groove concentric with the inverted conical groove at the peripheral part of the inverted conical groove, and the shape and the size of the first annular groove are adapted to the particle inlet and outlet end surfaces of the measuring frame, so that the first annular groove can be matched with the measuring frame;
the lower end of the source tank mounting frame is provided with a cap mounting groove with a shape and a size matched with the cap so as to be connected with the cap in a matching way.
Furthermore, a left telescopic mechanism and a right telescopic mechanism are mounted on the base, a bearing seat is mounted at the moving end of each third telescopic mechanism, and the left end and the right end of the rotating support are rotatably connected with the bearing seats at the moving ends of the third telescopic mechanisms through rotating shafts; the left end and the right end of the guide member are rotationally connected with the bearing seats on the moving ends of the first telescopic mechanisms through rotating shafts; two second telescopic machanisms about installing on the runing rest, both ends are connected with second telescopic machanism's motion end fixed connection respectively about the source tank mounting bracket.
Furthermore, the first telescopic mechanism, the second telescopic mechanism and the third telescopic mechanism are all electric push rods.
Furthermore, the automation device is provided with a control device, and the control device is electrically connected with the control ends of the first motor, the third motor, the first telescopic mechanism, the second telescopic mechanism and the third telescopic mechanism respectively so as to control the motors and the mechanisms to work.
Compared with the prior art, the utility model discloses following beneficial effect has: the guide member is designed with adaptive structures such as a measuring frame and a source tank cap, so that radioactive particles can conveniently, quickly and accurately enter the measuring frame before measurement, and can smoothly leave the measuring frame to return to the source tank cap after measurement. In addition, the automation device can also improve the automation degree of particle activity measurement, and greatly reduce the operating time of workers, thereby greatly reducing the harm of radioactive sources to the workers and improving the safety of particle activity measurement. Therefore, the utility model discloses very strong practicality and wide application prospect have.
Drawings
Fig. 1 is a structural sectional view of a guide member according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart of the measurement of particle activity assisted by the guiding member according to the embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an automation device according to an embodiment of the present invention.
Fig. 4 is a schematic flow chart of an embodiment of the present invention illustrating an auxiliary measurement of particle activity by an automated apparatus.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a guide component for assisting activity measurement of radioactive particles, as shown in figure 1, comprising a cylindrical body 101, wherein a first end surface of the cylindrical body is provided with an inverted cone-shaped groove 102, and the central position of the inverted cone-shaped groove 102 is provided with a central through hole 103 which runs through the cylindrical body along the height direction of the cylindrical body so as to guide the motion direction of the radioactive particles; a circular groove 104 which takes the central through hole as the center is arranged on the second end face of the cylindrical body 101, the shape and the size of the circular groove 104 are adapted to the particle inlet and outlet end faces of a measuring frame for measuring the activity of particles, so that when the circular groove 104 is matched with the measuring frame, the central through hole 103 of the cylindrical body is right opposite to the measuring tube at the center of the measuring frame; the circular groove 104 is further provided with a second annular groove 105 concentric with the circular groove, the shape and the size of the second annular groove 105 are adapted to the end surface of the cap of the source tank for containing radioactive particles, so that when the second annular groove 105 is matched with the cap, the central through hole 103 of the cylindrical body is opposite to the middle part of the cap; the first end surface of the cylindrical body 101 is provided with a first annular groove 106 concentric with the inverted conical groove 102 at the outer periphery of the inverted conical groove, and the shape and size of the first annular groove 106 are adapted to the particle inlet and outlet end surfaces of the measuring rack, so that the first annular groove 106 can be matched with the measuring rack.
Wherein the shape and size of the central through hole 103 is adapted to the radioactive particles so that they can just pass through the central through hole. In this embodiment, the cylindrical body is a cylinder.
As shown in fig. 2, the operation process of using the guiding member to assist in measuring the activity of the particles is as follows:
1) before the measurement is started, the measuring frame is placed in the well-type ionization chamber, then the guide member is placed on the measuring frame, as shown in fig. 2(a), the circular groove on the second end face is downwards tightly matched with the measuring frame, and the central through hole of the cylindrical body is right opposite to the measuring pipe in the center of the measuring frame, as shown in fig. 2 (b). 2) Placing the source tank on the guide member, opening the cap of the source tank with radioactive particles, and then driving the source driving needle into the source outlet hole on the source tank to drive the radioactive particles out, wherein the radioactive particles naturally fall into the measuring tube at the center of the measuring frame under the guide of the inverted cone-shaped groove and the central through hole; the cap is then tightened and the source canister containing the remaining radioactive particles is withdrawn. The measurement is generally performed with a new source canister, so that after one particle is ejected there are other particles inside, the source canister and its cap should be kept as a set, since the set is sterilized and then needs to be used for the treatment of the patient. 3) The radioactive particles are measured by a measuring device of a well-type ionization chamber. 4) After the measurement is completed, the guide member is separated from the measuring stand, and then the guide member is inverted, as shown in fig. 2 (d); a first annular groove on the first end face is downwards tightly matched with the measuring frame; another set of empty source can and cap is taken, and the cap is tightly matched with the second annular groove on the second end surface of the upper side, as shown in fig. 2 (e). 5) The measuring rack, the guide member and the cap are integrally moved upwards out of the well-type ionization chamber, and then the whole is turned over by 180 degrees as shown in fig. 2(f), at this time, the radioactive particles leave the measuring pipe and naturally fall into the cap under the guidance of the inverted cone-shaped groove and the central through hole. 6) The measuring rack, the guide member and the cap are separated from each other, as shown in fig. 2(g), the empty source tank and the cap are butted and screwed, the radioactive particle recovery is completed, and the measuring rack is put back into the well-type ionization chamber to wait for the next measurement.
The utility model also provides an automation equipment for assisting radioactive particle activity measurement, as shown in fig. 3, including base 201, rotating support 202, measuring stand 203, guide member 204 and source tank mounting bracket 205, install third telescopic machanism 210 on the base 201, rotating support 202 rotates with the motion end of third telescopic machanism 210 and is connected to by the third motor 206 drive rotation of fixed mounting on the motion end of third telescopic machanism 210, so that rotating support both can move up and down and can rotate; the measuring stand 203 is arranged on the rotating bracket 202; the guide member 204 is positioned at the upper side of the measuring frame 203, the first telescopic mechanism 207 is installed on the rotating bracket 202, the guide member 204 is rotatably connected with the moving end of the first telescopic mechanism 207 and is driven to rotate by a first motor 208 fixedly installed at the moving end of the first telescopic mechanism 207, so that the guide member can move up and down and can rotate; the source tank mounting frame 205 is located on the upper side of the guide member 204, the rotating support 202 is further provided with a second telescopic mechanism 209, and the source tank mounting frame 205 is fixedly connected with the moving end of the second telescopic mechanism 209 so that the source tank mounting frame can move up and down.
The structure of the guide member has been described above in detail. The lower end of the source tank mounting frame is provided with a cap mounting groove with a shape and a size matched with the cap so as to be connected with the cap in a matching way.
In this embodiment, the base is provided with a left third telescoping mechanism and a right third telescoping mechanism, a bearing seat is arranged at the moving end of the third telescoping mechanism, and the left end and the right end of the rotating bracket are rotatably connected with the bearing seat at the moving end of the third telescoping mechanism through a rotating shaft; the left end and the right end of the guide member are rotationally connected with the bearing seats on the moving ends of the first telescopic mechanisms through rotating shafts; two second telescopic machanisms about installing on the runing rest, both ends are connected with second telescopic machanism's motion end fixed connection respectively about the source tank mounting bracket. The first telescopic mechanism, the second telescopic mechanism and the third telescopic mechanism are all electric push rods.
In order to realize automatic control and improve the automation degree of the device, the automatic device is provided with a control device which is respectively electrically connected with the control ends of the first motor, the third motor, the first telescopic mechanism, the second telescopic mechanism and the third telescopic mechanism so as to control the motors and the mechanisms to work.
As shown in fig. 4, the working process of using the automatic device to assist in measuring the activity of particles is as follows: s1) before the measurement starts, the automation device is placed on the well-type ionization chamber 212; the whole rotating support is driven to move downwards by a third telescopic mechanism, so that the measuring frame enters the well-type ionization chamber; an empty source tank and a cap are taken, and the cap is arranged on the cap mounting groove at the lower end of the source tank mounting frame, as shown in fig. 4 (a). S2) driving the guide member to move downwards through the first telescoping mechanism, so that the circular groove on the second end face of the guide member is downward and tightly matched with the measuring rack, as shown in fig. 4 (b). S3) opening the cap of the source can loaded with radioactive particles, placing the source can on the guide member, and then discharging the radioactive particles, wherein the radioactive particles naturally fall into the measuring tube 211 at the center of the measuring frame under the guide of the inverted cone-shaped groove and the central through hole; the cap is then tightened and the source canister containing the remaining radioactive particles is withdrawn. S4) measuring the radioactive particles using a measuring device of a well-type ionization chamber. S5), driving the guide member to move upward by the first telescopic mechanism to separate from the measuring rack, as shown in fig. 4 (c); the guide member is driven by the first motor to turn 180 deg., with the second end of the guide member facing upward, as shown in fig. 4 (d). S6) driving the guide member to move downwards through the first telescopic mechanism, so that the first annular groove on the first end face of the guide member is downwards tightly matched with the measuring rack; the source canister mounting bracket is driven by the second telescoping mechanism to move downward so that the cap mates with the second annular groove on the second end face of the guide member, as shown in fig. 4 (e). S7) the whole rotating bracket is driven to move upwards by the third telescoping mechanism, so that the measuring rack, the guide member and the cap are moved upwards to the well-type ionization chamber, and then the rotating bracket is driven to turn over 180 ° by the third motor, as shown in fig. 4(f), at this time, the radioactive particles leave the measuring pipe and fall into the cap naturally under the guidance of the inverted cone-shaped groove and the central through hole. S8) the measuring frame, the guiding component and the source tank mounting frame are driven by the first telescoping mechanism and the second telescoping mechanism to separate from each other, the cap is taken down and is butt-jointed and screwed with the matched empty source tank, as shown in fig. 4(g), the recovery of radioactive particles is completed, the automation device is reset, and the next measurement is waited.
Above is the utility model discloses a preferred embodiment, all rely on the utility model discloses the change that technical scheme made, produced functional action does not surpass the utility model discloses during technical scheme's scope, all belong to the utility model discloses a protection scope.
Claims (8)
1. A guide component for assisting the activity measurement of radioactive particles is characterized by comprising a cylindrical body, wherein a first end face of the cylindrical body is provided with an inverted cone-shaped groove, and the center of the inverted cone-shaped groove is provided with a center through hole penetrating through the cylindrical body along the height direction of the cylindrical body so as to guide the movement direction of the radioactive particles; the second end face of the cylindrical body is provided with a circular groove taking the central through hole as the center, the shape and the size of the circular groove are matched with the particle inlet and outlet end faces of a measuring frame for measuring the activity of particles, so that when the circular groove is matched with the measuring frame, the central through hole of the cylindrical body is right opposite to the measuring tube at the center of the measuring frame; the circular groove is further provided with a second annular groove concentric with the circular groove, and the shape and the size of the second annular groove are matched with the end face of the cap of the source tank for containing radioactive particles, so that when the second annular groove is matched with the cap, the central through hole of the columnar body is aligned to the middle part of the cap.
2. Guide member for assisting the activity measurement of radioactive particles according to claim 1, wherein said cylindrical body is a cylinder.
3. Guide means for assisting the activity measurement of radioactive particles according to claim 1, wherein said central through hole has a shape and dimensions adapted to the radioactive particles so that they can pass right through the central through hole.
4. Guide member for assisting the activity measurement of radioactive particles according to claim 1, 2 or 3, wherein the first end face of the cylindrical body is provided with a first annular groove concentric with the inverted conical groove at the outer peripheral portion thereof, the shape and size of the first annular groove being adapted to the particle entrance and exit end faces of the measuring rack so that the first annular groove can be fitted with the measuring rack.
5. An automatic device for assisting the activity measurement of radioactive particles is characterized by comprising a base, a rotating support, a measuring frame, a guide member and a source tank mounting frame, wherein a third telescopic mechanism is mounted on the base; the measuring frame is arranged on the rotating bracket; the guide member is positioned on the upper side of the measuring frame, the rotating support is provided with a first telescopic mechanism, the guide member is rotatably connected with the moving end of the first telescopic mechanism and is driven to rotate by a first motor fixedly arranged on the moving end of the first telescopic mechanism, so that the guide member can move up and down and can rotate; the source tank mounting frame is positioned on the upper side of the guide member, the rotating support is further provided with a second telescopic mechanism, and the source tank mounting frame is fixedly connected with the moving end of the second telescopic mechanism so that the source tank mounting frame can move up and down;
the guide component comprises a cylindrical body, wherein an inverted cone-shaped groove is arranged on the first end surface of the cylindrical body, and a central through hole penetrating through the cylindrical body is formed in the central position of the inverted cone-shaped groove along the height direction of the cylindrical body so as to guide the movement direction of radioactive particles; the second end face of the cylindrical body is provided with a circular groove taking the central through hole as the center, the shape and the size of the circular groove are matched with the particle inlet and outlet end faces of a measuring frame for measuring the activity of particles, so that when the circular groove is matched with the measuring frame, the central through hole of the cylindrical body is right opposite to the measuring tube at the center of the measuring frame; the circular groove is further provided with a second annular groove concentric with the circular groove, and the shape and the size of the second annular groove are matched with the end face of the cap of the source tank for containing radioactive particles, so that when the second annular groove is matched with the cap, the central through hole of the columnar body is aligned to the middle part of the cap; the first end surface of the columnar body is provided with a first annular groove concentric with the inverted conical groove at the peripheral part of the inverted conical groove, and the shape and the size of the first annular groove are adapted to the particle inlet and outlet end surfaces of the measuring frame, so that the first annular groove can be matched with the measuring frame;
the lower end of the source tank mounting frame is provided with a cap mounting groove with a shape and a size matched with the cap so as to be connected with the cap in a matching way.
6. The automated apparatus for assisting radioactive particle activity measurement according to claim 5, wherein a left telescopic mechanism and a right telescopic mechanism are mounted on the base, a bearing seat is mounted on a moving end of the third telescopic mechanism, and a left end and a right end of the rotating bracket are rotatably connected with the bearing seat on the moving end of the third telescopic mechanism through a rotating shaft; the left end and the right end of the guide member are rotationally connected with the bearing seats on the moving ends of the first telescopic mechanisms through rotating shafts; two second telescopic machanisms about installing on the runing rest, both ends are connected with second telescopic machanism's motion end fixed connection respectively about the source tank mounting bracket.
7. The automated apparatus for assisted radioactive particle activity measurement according to claim 5, wherein the first, second and third telescoping mechanisms are all electric push rods.
8. The automated apparatus for assisting activity measurement of radioactive particles according to claim 5, wherein a control device is disposed on the automated apparatus, and the control device is electrically connected to the control terminals of the first motor, the third motor, the first telescoping mechanism, the second telescoping mechanism and the third telescoping mechanism respectively, so as to control the operation of each motor and mechanism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021830054.8U CN212515058U (en) | 2020-08-28 | 2020-08-28 | Guide member for assisting radioactive particle activity measurement and automation device |
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| CN202021830054.8U CN212515058U (en) | 2020-08-28 | 2020-08-28 | Guide member for assisting radioactive particle activity measurement and automation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755412A (en) * | 2021-02-26 | 2021-05-07 | 张宏涛 | External measuring device and method for radioactive particle implantation dose |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755412A (en) * | 2021-02-26 | 2021-05-07 | 张宏涛 | External measuring device and method for radioactive particle implantation dose |
| CN112755412B (en) * | 2021-02-26 | 2022-10-11 | 张宏涛 | External measuring device and method for radioactive particle implantation dose |
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