Multi-channel dose rate monitor for radiotherapy equipment

Abstract

The invention discloses a multi-channel dose rate monitor for radiotherapy equipment, and relates to the technical field of multi-channel dose rate monitors, the multi-channel dose rate monitor comprises a monitor body, the monitor body is provided with an auxiliary mechanism, the auxiliary mechanism comprises two rectangular plates and a mounting hole, a U-shaped block is arranged between the opposite surfaces of the two rectangular plates, and the U-shaped block is connected with the mounting hole. The auxiliary mechanism comprises two rectangular plates, connecting pieces are fixed to the positions, close to the edges of the two sides, of the opposite faces of the two rectangular plates, a rectangular ring is fixed to the interior of a mounting hole, connecting rods are fixed to the positions, close to the edges of the two sides, of the interior of the rectangular ring, and a rotating plate is rotationally arranged on the outer surface of each connecting rod. According to the multi-channel dose rate monitor, the shell containing space of the monitor can be expanded under the condition that an original monitor shell is not replaced, so that the upgrading and refitting speed of the monitor is not affected, large cost expenditure is not caused, and the use efficiency of the multi-channel dose rate monitor is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-channel dose rate monitors, in particular to a multi-channel dose rate monitor for radiotherapy equipment. Background Art

[0002] Radiotherapy equipment is a medical device used for tumor radiotherapy. 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. This is because a dose that is too high will damage normal tissue, while a dose that is too low will affect the efficacy. To ensure the accuracy of the radiotherapy dose rate, a multi-channel dose rate monitor is generally used during radiotherapy to synchronously monitor the dose rates of multiple irradiation fields or key points, compare them with the preset values in real time, and generate an alarm and initiate equipment shutdown in case of abnormalities.

[0004] However, the existing multi-channel dose rate monitors for radiotherapy equipment have the following shortcomings: Although existing multi-channel dose rate monitors can monitor several radiation channels simultaneously, with the development of radiotherapy technology, monitors will no longer 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 a larger physical space for installation and layout. However, the shell size of existing monitors is fixed. At this time, if the monitor wants to add functional modules or components on the original basis, it needs to replace the shell with a larger one. This not only affects the upgrade and modification speed of the monitor, but also results in large cost expenditures.

[0005] Therefore, we propose a new multi-channel dose rate monitor for radiotherapy equipment to solve the problems raised in the above background technology. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-channel dose rate monitor for radiotherapy equipment. By setting up an auxiliary mechanism, the housing space of the monitor can be expanded without replacing the original monitor housing, thereby not affecting the upgrade and modification speed of the monitor, and not causing large cost expenditure, so as to solve the problems raised by the above-mentioned background technology.

[0007] To achieve the above-mentioned object, 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, wherein the auxiliary mechanism is used to expand the monitor space; 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, connecting parts are fixed to the opposite sides of the two rectangular plates near the edges on both sides, a rectangular ring is fixed inside the mounting hole, a connecting plate is fixed to the bottom of the rectangular ring, and connecting rods are fixed inside the rectangular ring near the edges on both sides, each of the two end faces of the connecting rod is preset with a rectangular groove, and the outer surface of each connecting rod is rotated with a rotating plate, and the front surface of each rotating plate and the rear surface of each rotating plate are preset with a sliding groove.

[0008] Preferably, the opposite sides of the two rectangular plates are in contact with the front surface of the U-shaped block and the rear surface of the U-shaped block respectively, and the bottoms of the two rectangular plates and the bottom of the U-shaped block are in the same horizontal plane, and a porous plate is fixed on the front surface of one of the rectangular plates, and the front surface and the rear surface of the U-shaped block are both fixed with limiting blocks, and the inner surfaces of the two limiting blocks are in contact with the top surface of the two rectangular plates respectively.

[0009] Preferably, each of the connecting members is respectively adapted to each slide groove, two groups 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 of the connecting members is respectively adapted to each rectangular groove.

[0010] Preferably, two groups of perforated plates are fixed to the bottom of the rectangular ring, and a cylindrical groove is preset on the surface of each perforated plate. A spring is provided inside each cylindrical groove, and one end of each spring is fixed to the inner wall of each cylindrical groove. A U-shaped frame is movably passed through the same side of each group of perforated plates.

[0011] 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 rotating plate is in contact with the inner wall of the rectangular ring, and the bottom end of each long rod is respectively adapted to the through hole on each perforated plate.

[0012] Preferably, the monitor body includes a shell, the two groups of perforated plates and connecting plates are both located inside the shell, the mounting holes are preset at the top of the inner wall of the shell, an alarm is installed at the bottom of the inner wall of the shell, a shell cover is installed on the front surface of the shell, a group of round rods are fixed on the surface of the inner wall of the shell and the shell cover, and a touch screen is installed between the same ends of one group of round rods.

[0013] Preferably, a main control board is installed between the same ends of another group of the round rods, and the sounding end of the alarm, the bottom connecting 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 on the inner wall of the outer shell, and the side connection ports of the main control board are respectively connected to the adapter holes reserved on the inner wall of the outer shell.

[0014] Preferably, the display end of the touch screen is movably sleeved inside a through hole reserved on the shell cover, the transmission end of the main control board is installed with a wireless transmitter, the inner wall of the shell is preset with a rectangular hole, a concave block is fixed inside the rectangular hole, a plurality of limit plates are fixed inside the concave block, and a plurality of detectors are arranged between the plurality of limit plates.

[0015] Preferably, a rectangular block is provided inside the concave block, 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 close to the limiting plate, and the bottom end of each L-shaped block is movable through the top of each limiting plate. The side of the rectangular block away from the limiting plate is preset with multiple placement grooves.

[0016] Preferably, a group of limiting rods are fixed inside each of the placement slots, a clamping ring is fixed to the inner wall of each of the placement slots, the wire end of each of the detectors is respectively wound around each group of limiting rods, and the plug of each of the detectors is respectively squeezed and fixed on each clamping ring, and a cover plate is provided inside the concave block, and the cover plate is mounted on the rectangular block by screws, and the outer surface of the cover plate is in contact with the inner wall of the concave block.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can expand the housing accommodation space of the monitor without replacing the original monitor housing by setting an auxiliary mechanism, thereby not affecting the upgrade and modification speed of the monitor, and not causing large cost expenditure, thereby improving the use efficiency of the multi-channel dose rate monitor. When it is necessary to expand the internal space of the housing of the multi-channel dose rate monitor, the two rotating plates are first rotated to a vertical state, and then the two rotating plates, two rectangular plates and two connecting rods are assembled together by using the cooperation of the slide groove, rectangular groove and connecting piece, and then the U-shaped block, two limit blocks, two rectangular plates and two rotating plates are connected together, and then all the U-shaped frames, all the springs, two sets of perforated plates and two sets of long rods are used to cooperate to stably fix the shell composed of the two rotating plates, all the connecting pieces, all the long rods, the U-shaped block and the two limit blocks on the housing, thereby expanding the internal space of the housing.

[0018] 2. The present invention can synchronously monitor multiple independent radiation channels of radiotherapy equipment by setting up a monitor body, thereby ensuring the accuracy and safety of radiotherapy doses. When a multi-channel dose rate monitor is needed to monitor the dose rates of different radiation channels, the data of different radiation channels of the radiotherapy equipment can be collected by first using the cooperation of multiple detectors and transmitted to the main control board. Subsequently, the main control board and multiple dose rate thresholds set in advance can be used to amplify each received signal, reduce noise interference, and other processing. At the same time, each analog signal can be converted into a data signal, and real-time calculations can be performed to calculate the dose rate, and at the same time, it can be determined whether there is any radiation exceeding the standard.

[0019] 3. The present invention then utilizes the coordination of the touch screen, the main control board and the 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 in time when the radiation exceeds the standard, and shut down the radiotherapy equipment and stop the radiotherapy operation. Afterwards, with the coordination of the wireless transmitter, the data stored in the monitor main control board can be wirelessly transmitted to the device that needs the data. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a stereoscopic diagram of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention when not expanded; Figure 2 This is a three-dimensional diagram of an expanded multi-channel dose rate monitor for radiotherapy equipment according to the present invention; Figure 3 This is a partial three-dimensional diagram of a multi-channel dose rate monitor for radiotherapy equipment of the present invention when viewed from a top angle without expansion; Figure 4 This is a schematic diagram of the three-dimensional structure of a rectangular plate, a U-shaped block, a connecting piece and a long rod of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention; Figure 5 This is a partial three-dimensional diagram of a multi-channel dose rate monitor for radiotherapy equipment of the present invention when not expanded from another angle; Figure 6 This is a partial three-dimensional diagram of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention after expansion, viewed from a top angle; Figure 7 The present invention is a multi-channel dose rate monitor for radiotherapy equipment Figure 6 A magnified stereoscopic view of the structure at center A; Figure 8 The present invention is a multi-channel dose rate monitor for radiotherapy equipment Figure 6 A magnified stereoscopic view of the structure at point B in the middle; Figure 9This is a schematic diagram of the three-dimensional structure of a limit plate, a rectangular block, an L-shaped block and a placement slot of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention; Figure 10 This is a partial stereoscopic diagram of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention when viewed from an upward angle and not expanded; Figure 11 This is a schematic diagram of the structure of the front-view angle portion of a multi-channel dose rate monitor for radiotherapy equipment of the present invention when not expanded; Figure 12 This is a schematic diagram of the three-dimensional structure of a rectangular plate and connectors of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention; Figure 13 This is a cutaway perspective view of a monitor body portion of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention; Figure 14 This is a schematic diagram of the three-dimensional structure of a shell cover, a round rod and a touch screen of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention; Figure 15 This is a partially cutaway perspective view of an auxiliary mechanism of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention; Figure 16 This is a schematic diagram of the three-dimensional structure of a slideway and a rotating plate of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention; Figure 17 The present invention is a multi-channel dose rate monitor for radiotherapy equipment Figure 16 Enlarged stereogram of the structure at C in the middle; Figure 18 This is a schematic diagram of the three-dimensional structure of a U-shaped block and a long rod of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention; Figure 19 This is a three-dimensional diagram of the clamp ring of a multi-channel dose rate monitor for radiotherapy equipment according to the present invention.

[0021] In the figure: 1. Monitor body; 101. Housing; 102. Alarm; 103. Housing cover; 104. Round rod; 105. Touch screen; 106. Main control board; 107. Wireless transmitter; 108. Concave block; 109. Limit plate; 110. Detector; 111. Rectangular block; 112. L-shaped block; 113. Rectangular hole; 114. Placement slot; 115. Limit rod; 116. Clamp; 117. Cover plate; 2. Auxiliary mechanism; 201. Rectangular plate; 202. Perforated plate; 203. U-shaped block; 204. Limit block; 205. Connector; 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. Rotating plate. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figure 1-Figure 3 、 Figure 5-Figure 11 、 Figure 13 、 Figure 14 and Figure 19 As shown, the present invention provides a technical solution: a multi-channel dose rate monitor for radiotherapy equipment, comprising a monitor body 1, the monitor body 1 comprising a housing 101, an alarm 102 being mounted on the bottom of the inner wall of the housing 101, a housing cover 103 being mounted on the front surface of the housing 101, a group of round rods 104 being fixed to the inner wall of the housing 101 and the surface of the housing cover 103, a touch screen 105 being mounted between the same ends of one group of round rods 104, and a main control board 106 being mounted between the same ends of another group of round rods 104, The sounding 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 connected to the inside of the adapter holes reserved on the inner wall of the shell 101, and the side connection ports of the main control board 106 are respectively connected to the adapter holes reserved on the inner wall of the shell 101. The display end of the touch screen 105 is movably connected to the inside of the through hole reserved on the shell cover 103. The transmission end of the main control board 106 is installed with a wireless transmitter 107. The inner wall of the shell 101 is preset with a rectangular hole 113, and the inside of the rectangular hole 113 is fixed. There is a concave block 108, a plurality of limiting plates 109 are fixed inside the concave block 108, a plurality of detectors 110 are set between the plurality of limiting plates 109, a rectangular block 111 is provided inside the concave block 108, the same side of the plurality of limiting plates 109 are in contact with the surface of the rectangular block 111, a plurality of L-shaped blocks 112 are fixed on one side of the rectangular block 111 close to the limiting plate 109, the bottom end of each L-shaped block 112 is movable through the top of each limiting plate 109, and the rectangular block 111 is away from the side of the limiting plate 109. There are multiple placement slots 114 preset, and a group of limiting rods 115 are fixed inside each placement slot 114. A snap ring 116 is fixed to the inner wall of each placement slot 114. The wire end of each detector 110 is respectively wound around each group of limiting rods 115, and the plug of each detector 110 is respectively squeezed and fixed on each snap ring 116. A cover plate 117 is provided inside the concave block 108, and the cover plate 117 is mounted 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.

[0024] In this embodiment, when a multi-channel dose rate monitor is needed to monitor the dose rates of different radiation channels, all screws between the cover plate 117 and the rectangular block 111 are first removed, and then the cover plate 117 is moved out from the inside of the concave block 108. Next, the plug of each detector 110 is removed from the corresponding clamping ring 116, and then the wire end of each detector 110 is removed from the corresponding set of limiting rods 115. Then, the rectangular block 111 is moved upward to separate each L-shaped block 112 from the corresponding limiting plate 109, and then the rectangular block 111 and all L-shaped blocks 112 are removed from the concave block 108. 8, and after completing the removal of the rectangular block 111 and all L-shaped blocks 112, all detectors 110 are removed from between the multiple limit plates 109, and then each detector 110 is connected to each interface of the main control board 106 through a plug connected by a wire. Finally, each detector 110 is installed on a different radiation channel of the radiotherapy equipment, and the previously removed rectangular block 111 and cover plate 117 are placed back into the interior of the concave block 108 in turn, and the cover plate 117 is fixed with the removed screws. When the patient is treated with the radiotherapy equipment, the multi-channel dose rate monitor is started at this time. At this time, each detector 110 will collect data from the corresponding radiation channel and transmit the collected data to the main control board 106 in the form of electrical signals. The main control board 106 will then amplify each received electrical signal, reduce noise interference, and then convert each analog signal into a digital signal. It will then perform real-time calculations to calculate the dose rate. The dose rate calculated for each radiation channel will then be compared with the corresponding dose rate threshold value set in advance. When each calculated dose rate is lower than the corresponding dose rate threshold value set in advance, the main control board 106 will not send an alarm to the alarm 10 2 issues an alarm instruction and then continues monitoring. When one of the calculated dose rates is higher than the corresponding dose rate threshold set in advance, it means 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 treatment. At the same time, it will also issue an alarm instruction to the alarm 102. The alarm 102 that receives the instruction will then issue an alarm reminder to alert the medical staff. At the same time, the main control board 106 will also transmit all the received data, each calculated data and the compared results to the touch screen 105, and display them on its screen, and will also back up a copy for storage.

[0025] Example 2: According to Figures 1-8 、 Figure 10-12 and Figure 15-18As shown, the monitor body 1 is provided with an auxiliary mechanism 2, which is used to expand the monitor space. The auxiliary mechanism 2 includes two rectangular plates 201 and a mounting hole 207. A U-shaped block 203 is provided between the opposite sides of the two rectangular plates 201. Connectors 205 are fixed to the opposite sides of the two rectangular plates 201 near the edges on both sides. 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 to the inside of the rectangular ring 208 near the edges on both sides. A rectangular groove 211 is preset on both end faces of each connecting rod 210. 0 is rotated with a rotating plate 217 on the outer surface, and a sliding groove 212 is preset on the front surface of each rotating plate 217 and the rear surface of each rotating plate 217. The opposite sides of the two rectangular plates 201 are in contact with the front surface of the U-shaped block 203 and the rear surface of the U-shaped block 203 respectively. The bottoms of the two rectangular plates 201 and the bottoms of the U-shaped block 203 are in the same horizontal plane. The front surface of one of the rectangular plates 201 is fixed with a porous plate 202, and the front surface of the U-shaped block 203 and the rear surface of the U-shaped block 203 are fixed with a limiting block 204. The inner surfaces of the two limiting blocks 204 are in contact with the top surfaces of the two rectangular plates 201 respectively. A connecting piece 205 is respectively adapted to each slide groove 212, two groups of long rods 206 are fixed to the top of the inner wall of the U-shaped block 203, two rotating plates 217 are both inside the rectangular ring 208, and the opposite ends of the two rotating plates 217 are fixed to the connecting plate 209 by screws. The bottom end of each connecting piece 205 is respectively adapted to each rectangular groove 211, and two groups of perforated plates 213 are fixed to the bottom of the rectangular ring 208. The surface of each perforated plate 213 is preset with a cylindrical groove 214, and a spring 215 is provided inside each cylindrical groove 214, and one end of each spring 215 is respectively adapted to the inner wall of each cylindrical groove 214. Fixed, a U-shaped frame 216 is movably passed through the same side of each set of perforated plates 213, wherein the other ends of the 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, and the surface of each rotating plate 217 is in contact with the inner wall of the rectangular ring 208, and the bottom end of each long rod 206 is respectively adapted to the through hole on each perforated plate 213, the monitor body 1 includes a shell 101, the two sets of perforated plates 213 and the connecting plate 209 are all inside the shell 101, and the mounting hole 207 is preset at the top of the inner wall of the shell 101.

[0026] In this embodiment, when it is necessary to expand the internal space of the housing 101 of the multi-channel dose rate monitor, the screws fixing all the rotating plates 217 are first removed, and then each connecting rod 210 is used as a rotation axis to rotate the two rotating plates 217 90 degrees to a vertical state. Then, one of the rectangular plates 201 is moved, and the moving rectangular plate 201 drives the two connecting members 205 connected thereto to respectively connect to two of the chute 212 on the two rotating plates 217. When the two connecting members 205 are completely connected to the two chute 212, the bottom ends of the two connecting members 205 are just moved to the two The two rectangular grooves 211 on the connecting rod 210 are connected, and 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. Then move the two U-shaped frames 216 in opposite directions until the two clamping ends of each U-shaped frame 216 are removed from the through holes on the corresponding set of two perforated plates 213. At the same time, each U-shaped frame 216 is moved, and the spring 215 connected to it is stretched under the cooperation of the corresponding set of perforated plates 213. Then move the U-shaped block 203. At this time, move the U-shaped block 216. 03 will drive all the long rods 206 and all the limit blocks 204 connected to it to move. When the bottom end of each long rod 206 moves into the through hole of each perforated plate 213, the inner wall of the U-shaped block 203 is just in contact with the opposite side of the two rotating plates 217. The lower sides of the two limit blocks 204 are just in contact with the top of the two rectangular plates 201. The arc surfaces of the two rotating plates 217 are just in contact with the top of the inner wall of the U-shaped block 203. At the same time, the opposite side of the two rotating plates 217 is just in contact with the opposite side of the two groups of long rods 206. The bottom of the U-shaped block 203 is just in contact with the rectangular ring 208. The top of the two U-shaped frames 216 are in contact, and the force applied to the two U-shaped frames 216 is released. Then, the two U-shaped frames 216 will return to their original positions under the cooperation of the corresponding set of perforated plates 213 and the corresponding spring 215. When the two U-shaped frames 216 are returned to their original positions, each clamping end of each U-shaped frame 216 just passes through the through hole at the bottom end of each long rod 206, and the shell composed of the two rotating plates 217, all connecting members 205, all long rods 206, U-shaped blocks 203 and two limit blocks 204 is stably fixed on the shell 101, thereby expanding the internal space of the shell 101.

[0027] The effect and working principle of the entire mechanism are as follows: In the preparation stage, the power interface of the multi-channel dose rate monitor (on the main control board 106) is first connected to the power supply via the prepared power cord. The multi-channel dose rate monitor is then started (by pressing the power button on the main control board 106) to allow the multi-channel dose rate monitor to enter the initial interface. The touch screen 105 is then used to set multiple dose rate thresholds (each detector 110 corresponds to a dose rate threshold, and different radiation channels are set with different dose rate thresholds, all set according to actual conditions) and the time interval between each measurement (set according to actual conditions). The multi-channel dose rate monitor is then linked to the radiotherapy equipment (the multi-channel dose rate monitor controls the radiotherapy equipment to shut down if the dose exceeds the threshold). During the monitoring phase, when a multi-channel dose rate monitor is needed to monitor the dose rates of different radiation channels, first remove all the 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, then remove the plug of each detector 110 from the corresponding clamping ring 116, then remove the wire end of each detector 110 from the corresponding set of limit rods 115, then move the rectangular block 111 upwards, and separate each L-shaped block 112 from the corresponding limit plate 109, then remove the rectangular block 111 and all L-shaped blocks 112 from the inside of the concave block 108, and after completing the rectangular block 111 and all L-shaped blocks After the removal operation 112, all detectors 110 are removed from between the multiple limit plates 109, and then each detector 110 is connected to each interface of the main control board 106 through a plug connected by a wire. Finally, each detector 110 is installed on a different radiation channel of the radiotherapy equipment. At the same time, the previously removed rectangular block 111 and cover plate 117 are placed back into the inside of the concave block 108 in sequence, and the cover plate 117 is fixed with the removed screws. When the patient uses the radiotherapy equipment for treatment, the multi-channel dose rate monitor is started at this time. At this time, each detector 110 will collect data inside the corresponding radiation channel and transmit the collected data in the form of electrical signals. The main control board 106 then amplifies each received electrical signal, reduces noise interference, and then converts each analog signal into a digital signal. It then performs real-time calculations to calculate the dose rate, and then compares the calculated dose rate for each radiation channel with the corresponding dose rate threshold value set in advance. When each calculated dose rate is lower than the corresponding dose rate threshold value set in advance, it means that the main control board 106 will not issue an alarm instruction to the alarm device 102, and then continue monitoring. When one of the calculated dose rates is higher than the corresponding dose rate threshold value set in advance, it means that the dose rate of the corresponding radiation channel exceeds the standard. At this time, the main control board 106 It will control the linked radiotherapy equipment to shut down and stop treatment, and at the same time send an alarm instruction to the alarm 102. Then the alarm 102 that receives the instruction will send an alarm reminder to alert the medical staff. At the same time, the main control board 106 will also transmit all the received data, calculated data and compared results to the touch screen 105, and display them on its screen, and also back up a copy for storage. When it is necessary to wirelessly transmit the data stored in the monitor, the wireless transmitter 107 is first used to wirelessly connect the monitor to the device that needs to receive the data, and then the monitor can use the wireless transmitter 107 to transmit the data to the device receiving the data. During the expansion phase, when the internal space of the housing 101 of the multi-channel dose rate monitor needs to be expanded, the screws fixing all the rotating plates 217 are first removed, and then the two rotating plates 217 are rotated 90 degrees to a vertical position with each connecting rod 210 as the rotation axis. Then, one of the rectangular plates 201 is moved, and the moving rectangular plate 201 drives the two connecting pieces 205 connected thereto to respectively connect to two of the chutes 212 on the two rotating plates 217. When the two connecting pieces 205 are completely connected to the two chutes 212, the bottom ends of the two connecting pieces 205 are just moved to the two chutes 212. The two rectangular grooves 211 on the connecting rod 210 are connected, and 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. Then move the two U-shaped frames 216 in opposite directions until the two clamping ends of each U-shaped frame 216 are removed from the through holes on the corresponding set of two perforated plates 213. At the same time, each U-shaped frame 216 is moved, and the spring 215 connected to it is stretched under the cooperation of the corresponding set of perforated plates 213. Then move the U-shaped block 203. At this time, move the U-shaped block 216. 03 will drive all the long rods 206 and all the limit blocks 204 connected to it to move. When the bottom end of each long rod 206 moves into the through hole of each perforated plate 213, the inner wall of the U-shaped block 203 is just in contact with the opposite side of the two rotating plates 217. The lower sides of the two limit blocks 204 are just in contact with the top of the two rectangular plates 201. The arc surfaces of the two rotating plates 217 are just in contact with the top of the inner wall of the U-shaped block 203. At the same time, the opposite side of the two rotating plates 217 is just in contact with the opposite side of the two groups of long rods 206. The bottom of the U-shaped block 203 is just in contact with the rectangular ring 208. The top of the two U-shaped frames 216 are in contact, and the force applied to the two U-shaped frames 216 is released. Then, the two U-shaped frames 216 will return to their original positions under the cooperation of the corresponding set of perforated plates 213 and the corresponding spring 215. When the two U-shaped frames 216 are returned to their original positions, each clamping end of each U-shaped frame 216 just passes through the through hole at the bottom end of each long rod 206, and the shell composed of the two rotating plates 217, all connecting members 205, all long rods 206, U-shaped blocks 203 and two limit blocks 204 is stably fixed on the shell 101, thereby expanding the internal space of the shell 101.

[0028] 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 actual conditions, and no further explanation is given here.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-channel dose rate monitor for radiotherapy equipment, comprising a monitor body (1), characterized in that: The monitor body (1) is provided with an auxiliary mechanism (2), and the auxiliary mechanism (2) is used to expand the monitor space; The auxiliary mechanism (2) comprises two rectangular plates (201) and mounting holes (207), a U-shaped block (203) is provided between opposite sides of the two rectangular plates (201), connecting members (205) are fixed to opposite sides of the two rectangular plates (201) near the edges on both sides, 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 edges on both sides, both end surfaces of each connecting rod (210) are preset with rectangular grooves (211), the outer surface of each connecting rod (210) is rotatably provided with a rotating plate (217), and the front surface of each rotating plate (217) and the rear surface of each rotating plate (217) are preset with sliding grooves (212).

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 of the U-shaped block (203) 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 in the same horizontal plane. A porous plate (202) is fixed to the front surface of one of the rectangular plates (201). The front surface of the U-shaped block (203) and the rear surface of the U-shaped block (203) are both fixed with limiting blocks (204). 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 of the connecting members (205) is respectively adapted to each of the slide grooves (212); two groups 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 both located inside the rectangular ring (208); the opposite ends of the two rotating plates (217) are fixed to the connecting plate (209) by screws; and the bottom end of each of the connecting members (205) is respectively adapted to each of the rectangular grooves (211).

4. The multi-channel dose rate monitor for radiotherapy equipment according to claim 3, characterized in that: Two groups of perforated plates (213) are fixed to the bottom of the rectangular ring (208), and a cylindrical groove (214) is preset on the surface of each perforated plate (213). A spring (215) is provided inside each cylindrical groove (214), and 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 group of perforated plates (213).

5. The multi-channel dose rate monitor for radiotherapy equipment according to claim 4, characterized in that: The other ends of two of the 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) contacts the inner wall of the rectangular ring (208), and the bottom end of each long rod (206) is respectively adapted to the through hole on each perforated plate (213).

6. The multi-channel dose rate monitor for radiotherapy equipment according to claim 4, characterized in that: The monitoring instrument body (1) includes a housing (101), the two sets of perforated plates (213) and the connecting plate (209) are both located inside the housing (101), the mounting hole (207) is preset at the top of the inner wall of the housing (101), an alarm (102) is installed at the bottom of the inner wall of the housing (101), a housing cover (103) is installed on the front surface of the housing (101), and a set of round rods (104) are fixed to the inner wall of the housing (101) and the surface of the housing cover (103), wherein a touch screen (105) is installed between the same ends of one set of the round rods (104).

7. The multi-channel dose rate monitor for radiotherapy equipment according to claim 6, characterized in that: A main control board (106) is installed between the same ends of another group of round rods (104), and 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 holes reserved on the inner wall of the shell (101), and the side connection ports of the main control board (106) are respectively connected to the adapter holes reserved on the inner wall of the shell (101).

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

9. The multi-channel dose rate monitor for radiotherapy equipment according to claim 8, characterized in that: A rectangular block (111) is provided inside the concave block (108), and the same side of the plurality of limiting plates (109) contacts the surface of the rectangular block (111). A plurality of L-shaped blocks (112) are fixed on a side of the rectangular block (111) close to the limiting plate (109), and the bottom end of each L-shaped block (112) is movable through the top of each limiting plate (109). A plurality of placement slots (114) are preset on a side of the rectangular block (111) away from the limiting plate (109).

10. The multi-channel dose rate monitor for radiotherapy equipment according to claim 9, characterized in that: A group of limiting rods (115) are fixed inside each placement groove (114), a clamping ring (116) is fixed to the inner wall of each placement groove (114), the wire end of each detector (110) is respectively wound around each group of limiting rods (115), and the plug of each detector (110) is respectively pressed and fixed on each clamping ring (116), and a cover plate (117) is provided inside the concave block (108), and the cover plate (117) is mounted on the rectangular block (111) by screws, and the outer surface of the cover plate (117) is in contact with the inner wall of the concave block (108).

Images