A multi-channel dose rate monitor for radiotherapy equipment

Abstract

The application discloses a radiotherapy equipment multi-channel dose rate monitor and relates to the technical field of multi-channel dose rate monitors.The radiotherapy equipment multi-channel dose rate monitor comprises a monitor body, an auxiliary mechanism is arranged on the monitor body, the auxiliary mechanism comprises two rectangular plates and mounting holes, U-shaped blocks are arranged between opposite sides of the two rectangular plates, connecting pieces are fixed to the opposite sides of the two rectangular plates and close to the two side edges, rectangular rings are fixed in the mounting holes, connecting rods are fixed to the rectangular rings and close to the two side edges, rotating plates are arranged on the outer surfaces of the connecting rods, and the auxiliary mechanism can expand the shell accommodating space of the monitor without replacing the original monitor shell, thereby not affecting the upgrading and modification speed of the monitor, not causing large cost expenditure, and improving the use efficiency of the multi-channel dose rate monitor.

Description

Technical Field

[0001] This invention relates to the field of multi-channel dose rate monitoring technology, specifically to a multi-channel dose rate monitoring device for radiotherapy equipment. Background Technology

[0002] Radiotherapy equipment is a medical device used for the radiotherapy of tumors. It irradiates tumor cells in the body by generating ionizing radiation such as X-rays, gamma rays, electron beams, and proton beams, thereby using the biological effects of radiation to inhibit or kill tumors.

[0003] During radiotherapy, the radiation dose rate output by the radiotherapy equipment must be strictly controlled within the treatment plan range. Too high a dose will damage normal tissues, while too low a dose will affect the therapeutic effect. Therefore, in order to ensure the accuracy of the radiotherapy dose rate, a multi-channel dose rate monitor is generally used to simultaneously monitor the dose rate of multiple irradiation fields or key points during radiotherapy, compare the preset values ​​in real time, and alarm and shut down the equipment when abnormalities occur.

[0004] However, existing multi-channel dose rate monitors for radiotherapy equipment have the following shortcomings:

[0005] While existing multi-channel dose rate monitors can monitor several radiation channels simultaneously, with the development of radiotherapy technology, the monitors will not be limited to monitoring. For example, data encryption modules may be added to improve the security of data transmission, or intelligent thermal management systems may be added to meet the heat dissipation requirements during high-load operation. The addition of these functional modules or components will require more physical space for installation and layout. However, the housing size of existing monitors is fixed. If the monitor wants to add functional modules or components to the existing structure, it needs to replace the housing with a larger one. This not only affects the speed of monitor upgrades and modifications but also results in significant cost expenditures.

[0006] Therefore, we propose a new type of multi-channel dose rate monitor for radiotherapy equipment to address the problems mentioned in the background section. Summary of the Invention

[0007] The purpose of this invention is to provide a multi-channel dose rate monitor for radiotherapy equipment. By setting an auxiliary mechanism, the housing space of the monitor can be expanded without replacing the original monitor housing, thereby not affecting the speed of monitor upgrades and modifications, and without causing large cost expenditures, thus solving the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a multi-channel dose rate monitor for radiotherapy equipment, comprising a monitor body, wherein the monitor body is provided with an auxiliary mechanism, the auxiliary mechanism being used to expand the space of the monitor;

[0009] The auxiliary mechanism includes two rectangular plates and mounting holes. A U-shaped block is provided between the opposite sides of the two rectangular plates. Connectors are fixed near the two side edges of the opposite sides of the two rectangular plates. A rectangular ring is fixed inside the mounting hole. A connecting plate is fixed at the bottom of the rectangular ring. Connecting rods are fixed inside the rectangular ring near the two side edges. Rectangular grooves are pre-set on both ends of each connecting rod. A rotating plate is rotatably mounted on the outer surface of each connecting rod. A sliding groove is pre-set on the front surface and the rear surface of each rotating plate.

[0010] Preferably, the opposite sides of the two rectangular plates are in contact with the front surface and rear surface of the U-shaped block, respectively. The bottoms of the two rectangular plates and the bottom of the U-shaped block are on the same horizontal plane. A perforated plate is fixed to the front surface of one of the rectangular plates. Limiting blocks are fixed to both the front surface and the rear surface of the U-shaped block. The inner surfaces of the two limiting blocks are in contact with the top surfaces of the two rectangular plates, respectively.

[0011] Preferably, each connector is adapted to each groove, two sets of long rods are fixed to the top of the inner wall of the U-shaped block, the two rotating plates are both inside the rectangular ring, the opposite ends of the two rotating plates are fixed to the connecting plate by screws, and the bottom end of each connector is adapted to each rectangular groove.

[0012] Preferably, the bottom of the rectangular ring is fixed with two sets of perforated plates, each perforated plate has a pre-set cylindrical groove on its surface, each cylindrical groove has a spring inside, and one end of each spring is fixed to the inner wall of each cylindrical groove. A U-shaped frame is movably inserted between the same side of each set of perforated plates.

[0013] Preferably, the other ends of two of the springs are fixed to the inner surface of one of the U-shaped frames, and the other ends of the other two springs are fixed to the inner surface of the other U-shaped frame. The surface of each of the rotating plates is in contact with the inner wall of the rectangular ring, and the bottom end of each of the long rods is adapted to the through hole on each perforated plate.

[0014] Preferably, the monitoring device body includes a housing, with the two sets of perforated plates and connecting plates located inside the housing. The mounting holes are pre-set on the top of the inner wall of the housing, and an alarm is installed on the bottom of the inner wall of the housing. A cover is installed on the front surface of the housing, and a set of round rods is fixed on both the inner wall of the housing and the surface of the cover. A touch screen is installed between the same end of one set of round rods.

[0015] Preferably, a main control board is installed between the same ends of another set of the round rods. The sound-emitting end of the alarm, the bottom connection end of the main control board, and the bottom switch end of the main control board are respectively movably sleeved inside the adapter holes reserved in the inner wall of the housing. The side connection ports of the main control board are respectively connected to the adapter holes reserved in the inner wall of the housing.

[0016] Preferably, the display end of the touch screen is movably fitted inside the through hole reserved on the shell cover, the transmission end of the main control board is equipped with a wireless transmitter, the inner wall of the shell is pre-set with a rectangular hole, a concave block is fixed inside the rectangular hole, a plurality of limiting plates are fixed inside the concave block, and a plurality of detectors are arranged between the plurality of limiting plates.

[0017] Preferably, the concave block has a rectangular block inside, and the same side of the multiple limiting plates is in contact with the surface of the rectangular block. Multiple L-shaped blocks are fixed on the side of the rectangular block near the limiting plate. The bottom end of each L-shaped block movably passes through the top of each limiting plate. Multiple placement grooves are preset on the side of the rectangular block away from the limiting plate.

[0018] Preferably, each of the placement slots has a set of limiting rods fixed inside, and each of the placement slots has a retaining ring fixed on its inner wall. The wire end of each detector is wound around each set of limiting rods, and the plug of each detector is pressed and fixed on each retaining ring. The concave block has a cover plate inside, and the cover plate is installed on the rectangular block by screws. The outer surface of the cover plate is in contact with the inner wall of the concave block.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention, by setting up an auxiliary mechanism, can expand the housing space of the monitor without replacing the original monitor housing, thus not affecting the upgrade and modification speed of the monitor, nor causing large cost expenditures, thereby improving the utilization efficiency of the multi-channel dose rate monitor. When it is necessary to expand the internal space of the multi-channel dose rate monitor housing, first turn the two rotating plates to the vertical position, and then use the cooperation of the sliding groove, rectangular groove and connecting parts to assemble the two rotating plates, two rectangular plates and two connecting rods together. Next, connect the U-shaped block, two limiting blocks, two rectangular plates and two rotating plates. Then, use the cooperation of all U-shaped frames, all springs, two sets of perforated plates and two sets of long rods to stably fix the housing composed of two rotating plates, all connecting parts, all long rods, U-shaped blocks and two limiting blocks to the outer shell, thereby expanding the internal space of the outer shell.

[0021] 2. This invention, by setting up a monitoring instrument body, can synchronously monitor multiple independent radiation channels of radiotherapy equipment, thereby ensuring the accuracy and safety of radiotherapy dosage. When it is necessary to use a multi-channel dose rate monitor to monitor the dose rate of different radiation channels, multiple detectors are used to collect data from different radiation channels of the radiotherapy equipment and transmit it to the main control board. Then, by using the main control board and multiple pre-set dose rate thresholds, each received signal can be amplified and noise interference reduced. At the same time, each analog signal can be converted into a data signal and calculated in real time to calculate the dose rate. It can also determine whether there is radiation exceeding the standard.

[0022] 3. The present invention further utilizes the combination of touch screen, main control board and alarm to display in real time the data detected by each detector, each dose rate calculated by the main control board and each result after comparison. It can also issue an alarm reminder in time when radiation exceeds the standard and link the radiotherapy equipment to shut down and stop the radiotherapy operation. Then, with the help of wireless transmitter, the data stored in the monitoring instrument main control board can be wirelessly transmitted to the device that needs the data. Attached Figure Description

[0023] Figure 1 This is an unexpanded perspective view of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention;

[0024] Figure 2 This is an expanded perspective view of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention;

[0025] Figure 3 This is a top-view perspective view of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention, without any expansion.

[0026] Figure 4 This is a three-dimensional structural diagram of a rectangular plate, a U-shaped block, a connector, and a long rod of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention;

[0027] Figure 5 This is a partial perspective view of the non-expanded multi-channel dose rate monitor of a radiotherapy device according to the present invention from another angle;

[0028] Figure 6 This is a partial perspective view of the extended top view of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention;

[0029] Figure 7 This invention relates to a multi-channel dose rate monitor for radiotherapy equipment. Figure 6 Enlarged 3D view of the structure at point A in the middle;

[0030] Figure 8 This invention relates to a multi-channel dose rate monitor for radiotherapy equipment. Figure 6 Enlarged 3D view of the structure at point B in the middle;

[0031] Figure 9 This is a three-dimensional structural diagram of the limiting plate, rectangular block, L-shaped block and placement groove of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention;

[0032] Figure 10 This is a perspective view of the unexpanded, upward-looking portion of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention.

[0033] Figure 11 This is a schematic diagram of the unextended frontal viewing angle portion of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention;

[0034] Figure 12 This is a three-dimensional structural diagram of the rectangular plate and connector of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention;

[0035] Figure 13 This is a three-dimensional cross-sectional view of the main body of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention;

[0036] Figure 14 This is a three-dimensional structural diagram of the shell cover, round rod, and touch screen of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention.

[0037] Figure 15 This is a sectional perspective view of the auxiliary mechanism of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention;

[0038] Figure 16 This is a three-dimensional structural diagram of the slide and rotating plate of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention;

[0039] Figure 17 This invention relates to a multi-channel dose rate monitor for radiotherapy equipment. Figure 16 Enlarged 3D view of the structure at point C;

[0040] Figure 18 This is a three-dimensional structural diagram of the U-shaped block and long rod of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention;

[0041] Figure 19 This is a three-dimensional view of the retaining ring of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention.

[0042] In the diagram: 1. Monitor body; 101. Housing; 102. Alarm; 103. Cover; 104. Round rod; 105. Touch screen; 106. Main control board; 107. Wireless transmitter; 108. Concave block; 109. Limiting plate; 110. Detector; 111. Rectangular block; 112. L-shaped block; 113. Rectangular hole; 114. Placement slot; 115. Limiting rod; 116. Retaining ring; 117. 1. Cover plate; 2. Auxiliary mechanism; 201. Rectangular plate; 202. Perforated plate; 203. U-shaped block; 204. Limiting block; 205. Connecting piece; 206. Long rod; 207. Mounting hole; 208. Rectangular ring; 209. Connecting plate; 210. Connecting rod; 211. Rectangular groove; 212. Slide groove; 213. Perforated plate; 214. Cylindrical groove; 215. Spring; 216. U-shaped frame; 217. Turning plate. Detailed Implementation

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

[0044] Example 1: Please refer to Figures 1-3 , Figures 5-11 , Figure 13 , Figure 14 and Figure 19As shown, the present invention provides a technical solution: a multi-channel dose rate monitor for radiotherapy equipment, including a monitor body 1, the monitor body 1 including a shell 101, an alarm 102 installed on the bottom of the inner wall of the shell 101, a shell cover 103 installed on the front surface of the shell 101, a set of round rods 104 fixed on both the inner wall of the shell 101 and the surface of the shell cover 103, a touch screen 105 installed between the same ends of one set of round rods 104, and a main control board 106 installed between the same ends of the other set of round rods 104. The sound-emitting end of the alarm 102, the bottom connection end of the main control board 106, and the bottom switch end of the main control board 106 are respectively movably fitted into the adapter holes reserved in the inner wall of the housing 101. The side connection ports of the main control board 106 are respectively connected to the adapter holes reserved in the inner wall of the housing 101. The display end of the touch screen 105 is movably fitted into the through hole reserved in the cover 103. The transmission end of the main control board 106 is equipped with a wireless transmitter 107. The inner wall of the housing 101 has a rectangular hole 113. The interior of the rectangular hole 113 is fixed. A concave block 108 is fixed, and multiple limiting plates 109 are fixed inside the concave block 108. Multiple detectors 110 are arranged between the multiple limiting plates 109. A rectangular block 111 is provided inside the concave block 108. The same side of the multiple limiting plates 109 is in contact with the surface of the rectangular block 111. Multiple L-shaped blocks 112 are fixed on the side of the rectangular block 111 near the limiting plates 109. The bottom end of each L-shaped block 112 movably passes through the top of each limiting plate 109. The side of the rectangular block 111 away from the limiting plates 109... Multiple placement slots 114 are pre-set, and a set of limiting rods 115 are fixed inside each placement slot 114. A retaining ring 116 is fixed to the inner wall of each placement slot 114. The wire end of each detector 110 is wound around each set of limiting rods 115. The plug of each detector 110 is pressed and fixed to each retaining ring 116. A cover plate 117 is provided inside the concave block 108. The cover plate 117 is installed on the rectangular block 111 by screws. The outer surface of the cover plate 117 is in contact with the inner wall of the concave block 108.

[0045] In this embodiment, when a multi-channel dose rate monitor is needed to monitor the dose rate of different radiation channels, first remove all screws between the cover plate 117 and the rectangular block 111, then move the cover plate 117 out of the concave block 108, next remove the plug of each detector 110 from the corresponding retaining ring 116, then remove the wire end of each detector 110 from the corresponding set of limiting rods 115, then move the rectangular block 111 upwards to disengage each L-shaped block 112 from the corresponding limiting plate 109, and then remove the rectangular block 111 and all L-shaped blocks 112 from the concave block 108. After removing the rectangular block 111 and all L-shaped blocks 112, remove all detectors 110 from between the multiple limiting plates 109. Then, connect each detector 110 to each interface of the main control board 106 via a wire connector. Finally, install each detector 110 on a different radiation channel of the radiotherapy equipment. At the same time, place the previously removed rectangular block 111 and cover plate 117 back into the concave block 108 and fix the cover plate 117 with the removed screws. When the patient is treated with the radiotherapy equipment, the multi-channel dose rate monitor is activated. At this point, each detector 110 collects data from the corresponding radiation channel and transmits the collected data to the main control board 106 as electrical signals. The main control board 106 then amplifies and reduces noise interference for each received electrical signal, converts each analog signal into a digital signal, performs real-time calculations to determine the dose rate, and compares the calculated dose rate for each radiation channel with a pre-set dose rate threshold. If the calculated dose rate is lower than the pre-set dose rate threshold, the main control board 106 will not send a signal to the alarm 10. 2. An alarm command is issued, and monitoring continues. When one of the calculated dose rates is higher than the corresponding pre-set dose rate threshold, it indicates that the dose rate of the corresponding radiation channel exceeds the standard. At this time, the main control board 106 will control the linked radiotherapy equipment to shut down and stop the treatment. At the same time, it will also send an alarm command to the alarm 102. The alarm 102, which receives the command, will then issue an alarm reminder to remind medical staff. Meanwhile, the main control board 106 will also transmit all the received data, all the calculated data, and the comparison results to the touch screen 105 and display them on its screen. It will also make a backup and store it.

[0046] Example 2: According to Figures 1-8 , Figures 10-12 and Figures 15-18As shown, the main body 1 of the monitoring instrument is provided with an auxiliary mechanism 2, which is used to expand the space of the monitoring instrument. The auxiliary mechanism 2 includes two rectangular plates 201 and mounting holes 207. A U-shaped block 203 is provided between the opposite sides of the two rectangular plates 201. Connecting parts 205 are fixed near the two side edges of the opposite sides of the two rectangular plates 201. A rectangular ring 208 is fixed inside the mounting hole 207. A connecting plate 209 is fixed to the bottom of the rectangular ring 208. Connecting rods 210 are fixed inside the rectangular ring 208 near the two side edges. Each connecting rod 210 has a rectangular groove 211 pre-set on both end faces. The outer surface of each of the two rectangular plates 201 is equipped with rotating plates 217. Each rotating plate 217 has a pre-set groove 212 on its front and rear surfaces. The opposite sides of the two rectangular plates 201 contact the front and rear surfaces of the U-shaped block 203, respectively. The bottoms of the two rectangular plates 201 and the bottom of the U-shaped block 203 are on the same horizontal plane. A perforated plate 202 is fixed to the front surface of one of the rectangular plates 201. Limiting blocks 204 are fixed to both the front and rear surfaces of the U-shaped block 203. The inner surfaces of the two limiting blocks 204 contact the top surfaces of the two rectangular plates 201, respectively. Each connector 205 is adapted to each groove 212. Two sets of long rods 206 are fixed to the top of the inner wall of the U-shaped block 203. Two rotating plates 217 are located inside the rectangular ring 208. The opposite ends of the two rotating plates 217 are fixed to the connecting plate 209 by screws. The bottom end of each connector 205 is adapted to each rectangular groove 211. Two sets of perforated plates 213 are fixed to the bottom of the rectangular ring 208. Each perforated plate 213 has a pre-set cylindrical groove 214 on its surface. Each cylindrical groove 214 has a spring 215 inside, and one end of each spring 215 is respectively connected to the inner wall of each cylindrical groove 214. The perforated plates 213 are fixed, and U-shaped frames 216 are movably connected between the same side of each group of perforated plates 213. The other ends of two springs 215 are fixed to the inner surface of one of the U-shaped frames 216, and the other ends of the other two springs 215 are fixed to the inner surface of the other U-shaped frame 216. The surface of each rotating plate 217 is in contact with the inner wall of the rectangular ring 208. The bottom end of each long rod 206 is adapted to the through hole on each perforated plate 213. The main body of the monitoring instrument 1 includes a housing 101. The two groups of perforated plates 213 and the connecting plate 209 are all located inside the housing 101. The mounting hole 207 is preset on the top of the inner wall of the housing 101.

[0047] In this embodiment, when it is necessary to expand the internal space of the housing 101 of the multi-channel dose rate monitor, first remove the screws that fix all the rotating plates 217, then rotate both rotating plates 217 90 degrees with each connecting rod 210 as the rotation axis until they are vertical. Next, move one of the rectangular plates 201 so that the moving rectangular plate 201 drives the two connecting pieces 205 connected to it to align with two of the sliding grooves 212 on the two rotating plates 217 respectively. When the two connecting pieces 205 are completely aligned with the two sliding grooves 212, the bottom ends of the two connecting pieces 205 have just moved to the two sliding grooves 212 respectively. Inside the two rectangular slots 211 on the connecting rod 210, the bottom of the rectangular plate 201 is in contact with the top of the rectangular ring 208. Then, repeat the above steps to install the other rectangular plate 201. Next, move the two U-shaped brackets 216 in opposite directions until the two snap-fit ​​ends of each U-shaped bracket 216 are removed from the through holes on the corresponding set of two perforated plates 213. At the same time, each moving U-shaped bracket 216 will also stretch the spring 215 connected to it under the cooperation of the corresponding set of perforated plates 213. Then move the U-shaped block 203. At this time, the U-shaped block 203 is moved. 03 will cause all the connected long rods 206 and all the limiting blocks 204 to move. When the bottom end of each long rod 206 moves into the through hole of each perforated plate 213, the inner walls of the U-shaped block 203 are in contact with the opposite sides of the two rotating plates 217, the lower sides of the two limiting blocks 204 are in contact with the top of the two rectangular plates 201, the arc surfaces of the two rotating plates 217 are in contact with the top of the inner wall of the U-shaped block 203, and the opposite sides of the two rotating plates 217 are in contact with the opposite sides of the two sets of long rods 206. The bottom of the U-shaped block 203 is in contact with the rectangular ring 208. When the tops of the two U-shaped brackets 216 are in contact, the force applied to the two U-shaped brackets 216 is released. Subsequently, the two U-shaped brackets 216 will return to their original positions with the help of the corresponding set of perforated plates 213 and the corresponding spring 215. When the two U-shaped brackets 216 return to their original positions, each snap-fit ​​end of each U-shaped bracket 216 passes through the through hole at the bottom of each long rod 206. This means that the housing composed of two rotating plates 217, all connectors 205, all long rods 206, U-shaped blocks 203 and two limiting blocks 204 is stably fixed on the outer shell 101, thereby expanding the internal space of the outer shell 101.

[0048] The overall effect and working principle of the mechanism are as follows:

[0049] During the preparation phase, first connect the power interface of the multi-channel dose rate monitor (on the main control board 106) to the power supply via the prepared power cord. Then, start the multi-channel dose rate monitor (press the power button on the main control board 106) to allow the multi-channel dose rate monitor to enter the initial interface. Next, use the touch screen 105 to set multiple dose rate thresholds (each detector 110 corresponds to one dose rate threshold, and the dose rate thresholds set for different radiation channels are different and are all set according to the actual situation) and the measurement time interval (set according to the actual situation). After that, link the multi-channel dose rate monitor with the radiotherapy equipment (when the dose rate exceeds the limit, the multi-channel dose rate monitor controls the radiotherapy equipment to stop).

[0050] During the monitoring phase, when a multi-channel dose rate monitor is needed to monitor the dose rate of different radiation channels, first remove all screws between the cover plate 117 and the rectangular block 111. Then, remove the cover plate 117 from the inside of the concave block 108. Next, remove the plug of each detector 110 from its corresponding retaining ring 116. Then, remove the wire end of each detector 110 from its corresponding set of limiting rods 115. After that, move the rectangular block 111 upwards so that each L-shaped block 112 disengages from its corresponding limiting plate 109. Then, remove the rectangular block 111 and all L-shaped blocks 112 from the inside of the concave block 108. After removing detectors 112, remove all detectors 110 from between the multiple limiting plates 109. Then, connect each detector 110 to each interface of the main control board 106 via a wire connector. Finally, install each detector 110 on a different radiation channel of the radiotherapy equipment. At the same time, place the previously removed rectangular block 111 and cover plate 117 back into the concave block 108 and fix the cover plate 117 with the removed screws. When the patient uses the radiotherapy equipment for treatment, the multi-channel dose rate monitor is activated. At this time, each detector 110 will collect data from the corresponding radiation channel and transmit the collected data as electrical signals. The signal is sent to the main control board 106. The main control board 106 then amplifies and reduces noise interference for each received electrical signal, converts each analog signal into a digital signal, and performs real-time calculations to determine the dose rate. It then compares the calculated dose rate for each radiation channel with a pre-set dose rate threshold. If each calculated dose rate is lower than its pre-set threshold, the main control board 106 will not send an alarm command to the alarm 102. Monitoring continues, and if one of the calculated dose rates is higher than its pre-set threshold, it indicates that the dose rate of the corresponding radiation channel is exceeding the limit. At this point, the main control board 106... The system will control the radiotherapy equipment to shut down and stop treatment. At the same time, it will send an alarm command to the alarm 102. The alarm 102 will then issue an alarm reminder to the medical staff. Meanwhile, the main control board 106 will transmit all the received data, calculated data, and comparison results to the touch screen 105 and display them on its screen. It will also make a backup and store it. When it is necessary to wirelessly transmit the data stored in the monitor, the monitor will first be wirelessly connected to the device that needs to receive the data using the wireless transmitter 107. Then, the monitor can use the wireless transmitter 107 to transmit the data to the receiving device.

[0051] During the expansion phase, when it is necessary to expand the internal space of the housing 101 of the multi-channel dose rate monitor, first remove the screws securing all the rotating plates 217. Then, using each connecting rod 210 as a rotation axis, rotate both rotating plates 217 by 90 degrees to a vertical position. Next, move one of the rectangular plates 201, causing the moving rectangular plate 201 to drive the two connecting pieces 205 connected to it to align with two of the sliding grooves 212 on the two rotating plates 217 respectively. When the two connecting pieces 205 are fully aligned with the two sliding grooves 212, the bottom ends of the two connecting pieces 205 will have moved to the two sliding grooves 212 respectively. Inside the two rectangular slots 211 on the connecting rod 210, the bottom of the rectangular plate 201 is in contact with the top of the rectangular ring 208. Then, repeat the above steps to install the other rectangular plate 201. Next, move the two U-shaped brackets 216 in opposite directions until the two snap-fit ​​ends of each U-shaped bracket 216 are removed from the through holes on the corresponding set of two perforated plates 213. At the same time, each moving U-shaped bracket 216 will also stretch the spring 215 connected to it under the cooperation of the corresponding set of perforated plates 213. Then move the U-shaped block 203. At this time, the U-shaped block 203 is moved. 03 will cause all the connected long rods 206 and all the limiting blocks 204 to move. When the bottom end of each long rod 206 moves into the through hole of each perforated plate 213, the inner walls of the U-shaped block 203 are in contact with the opposite sides of the two rotating plates 217, the lower sides of the two limiting blocks 204 are in contact with the top of the two rectangular plates 201, the arc surfaces of the two rotating plates 217 are in contact with the top of the inner wall of the U-shaped block 203, and the opposite sides of the two rotating plates 217 are in contact with the opposite sides of the two sets of long rods 206. The bottom of the U-shaped block 203 is in contact with the rectangular ring 208. When the tops of the two U-shaped brackets 216 are in contact, the force applied to the two U-shaped brackets 216 is released. Subsequently, the two U-shaped brackets 216 will return to their original positions with the help of the corresponding set of perforated plates 213 and the corresponding spring 215. When the two U-shaped brackets 216 return to their original positions, each snap-fit ​​end of each U-shaped bracket 216 passes through the through hole at the bottom of each long rod 206. This means that the housing composed of two rotating plates 217, all connectors 205, all long rods 206, U-shaped blocks 203 and two limiting blocks 204 is stably fixed on the outer shell 101, thereby expanding the internal space of the outer shell 101.

[0052] Among them, the alarm 102, touch screen 105, main control board 106, wireless transmitter 107 and detector 110 are all existing technologies, and their models can be selected according to the actual situation. They will not be explained in detail here.

[0053] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-channel dose rate monitor for radiotherapy equipment, comprising a monitor body (1), characterized in that: The monitoring instrument body (1) is provided with an auxiliary mechanism (2), which is used to expand the space of the monitoring instrument; The auxiliary mechanism (2) includes two rectangular plates (201) and mounting holes (207). A U-shaped block (203) is provided between the opposite sides of the two rectangular plates (201). Connectors (205) are fixed near the two side edges of the opposite sides of the two rectangular plates (201). A rectangular ring (208) is fixed inside the mounting hole (207). A connecting plate (209) is fixed at the bottom of the rectangular ring (208). A connecting rod (210) is fixed near the two side edges inside the rectangular ring (208). A rectangular groove (211) is preset on both end faces of each connecting rod (210). A rotating plate (217) is rotatably mounted on the outer surface of each connecting rod (210). A sliding groove (212) is preset on the front surface and the rear surface of each rotating plate (217). The bottom of the rectangular ring (208) is fixed with two sets of perforated plates (213). Each perforated plate (213) has a pre-set cylindrical groove (214) on its surface. Each cylindrical groove (214) is provided with a spring (215) inside. One end of each spring (215) is fixed to the inner wall of each cylindrical groove (214). A U-shaped frame (216) is movably passed through the same side of each set of perforated plates (213). The other end of two springs (215) is fixed to the inner surface of one of the U-shaped frames (216), and the other end of the other two springs (215) is fixed to the inner surface of the other U-shaped frame (216).

2. The multi-channel dose rate monitor for radiotherapy equipment according to claim 1, characterized in that: The opposite sides of the two rectangular plates (201) are in contact with the front surface and the rear surface of the U-shaped block (203), respectively. The bottoms of the two rectangular plates (201) and the bottom of the U-shaped block (203) are on the same horizontal plane. A perforated plate (202) is fixed on the front surface of one of the rectangular plates (201). Limiting blocks (204) are fixed on both the front surface and the rear surface of the U-shaped block (203). The inner surfaces of the two limiting blocks (204) are in contact with the top surfaces of the two rectangular plates (201), respectively.

3. The multi-channel dose rate monitor for radiotherapy equipment according to claim 1, characterized in that: Each connector (205) is adapted to each groove (212). Two sets of long rods (206) are fixed to the top of the inner wall of the U-shaped block (203). The two rotating plates (217) are located inside the rectangular ring (208). The opposite ends of the two rotating plates (217) are fixed to the connecting plate (209) by screws. The bottom end of each connector (205) is adapted to each rectangular groove (211).

4. The multi-channel dose rate monitor for radiotherapy equipment according to claim 3, characterized in that: The surface of each of the rotating plates (217) is in contact with the inner wall of the rectangular ring (208), and the bottom end of each of the long rods (206) is adapted to the through hole on each perforated plate (213).

5. The multi-channel dose rate monitor for radiotherapy equipment according to claim 1, characterized in that: The main body (1) of the monitoring instrument includes a shell (101), two sets of perforated plates (213) and connecting plates (209) are located inside the shell (101), the mounting hole (207) is preset on the top of the inner wall of the shell (101), an alarm (102) is installed on the bottom of the inner wall of the shell (101), a shell cover (103) is installed on the front surface of the shell (101), and a set of round rods (104) are fixed on the inner wall of the shell (101) and the surface of the shell cover (103), and a touch screen (105) is installed between the same end of the set of round rods (104).

6. The multi-channel dose rate monitor for radiotherapy equipment according to claim 5, characterized in that: A main control board (106) is installed between the same ends of another set of round rods (104). The sound-emitting end of the alarm (102), the bottom connection end of the main control board (106) and the bottom switch end of the main control board (106) are respectively movably sleeved inside the adapter hole reserved in the inner wall of the outer shell (101). The side connection port of the main control board (106) is connected to the adapter hole reserved in the inner wall of the outer shell (101).

7. The multi-channel dose rate monitor for radiotherapy equipment according to claim 6, characterized in that: The display end of the touch screen (105) is movably fitted inside the through hole reserved on the shell cover (103). The transmission end of the main control board (106) is equipped with a wireless transmitter (107). The inner wall of the shell (101) is pre-set with a rectangular hole (113). A concave block (108) is fixed inside the rectangular hole (113). Multiple limiting plates (109) are fixed inside the concave block (108). Multiple detectors (110) are arranged between the multiple limiting plates (109).

8. The multi-channel dose rate monitor for radiotherapy equipment according to claim 7, characterized in that: The concave block (108) has a rectangular block (111) inside. The same side of the multiple limiting plates (109) is in contact with the surface of the rectangular block (111). Multiple L-shaped blocks (112) are fixed on the side of the rectangular block (111) near the limiting plate (109). The bottom end of each L-shaped block (112) moves through the top of each limiting plate (109). Multiple placement slots (114) are preset on the side of the rectangular block (111) away from the limiting plate (109).

9. The multi-channel dose rate monitor for radiotherapy equipment according to claim 8, characterized in that: Each of the placement slots (114) is fixed with a set of limiting rods (115), and each of the placement slots (114) is fixed with a retaining ring (116). The wire end of each detector (110) is wound around each set of limiting rods (115), and the plug of each detector (110) is pressed and fixed on each retaining ring (116). The concave block (108) is provided with a cover plate (117), which is installed on the rectangular block (111) by screws. The outer surface of the cover plate (117) is in contact with the inner wall of the concave block (108).

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