A gamma knife radiation source installation and replacement device for both head and body use

Abstract

The present invention provides a head-body dual-purpose gamma knife radiation source installation and replacement device. The head-body dual-purpose gamma knife radiation source installation and replacement device includes: a shielding room, a master-slave manipulator, a radiation source storage device, and a gamma knife shielding plug moving device. The shielding room covers one side of the gamma knife treatment head close to the radiation source conversion port, and the gamma knife shielding plug is arranged on the radiation source conversion port of the gamma knife treatment head. The radiation source storage device is arranged in the shielding room. The master-slave manipulator passes through the shielding room. The master-slave manipulator includes a master-end manipulator and a slave-end manipulator. The master-end manipulator is arranged outside the shielding room, and the slave-end manipulator is arranged inside the shielding room. A radiation source emergency receiving tray is arranged in the shielding room, and the radiation source emergency receiving tray is arranged below the radiation source conversion port.

Description

Technical Field

[0001] The present invention relates to the technical field of radiotherapy equipment manufacturing, and particularly to a gamma knife radiation source installation and replacement device for both head and body applications. Background Art

[0002] In recent years, the gamma knife has been the main treatment means of stereotactic radiosurgery. According to the principle of stereometric orientation, the normal tissue or diseased tissue in the skull is selectively determined as the target, and the gamma rays generated by cobalt-60 are used for one-time high-dose focused irradiation, so as to cause focal necrosis or functional changes to achieve the purpose of treating diseases. The replacement of the radiation source of the gamma knife needs to be installed and replaced in the environment of a medical institution, with great installation difficulty and high safety requirements. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a gamma knife radiation source installation and replacement device for both head and body applications, which can facilitate the installation and replacement of the gamma knife radiation source for both head and body applications.

[0004] To solve the above technical problem, an embodiment of the present invention provides a gamma knife radiation source installation and replacement device for both head and body applications. The gamma knife radiation source installation and replacement device for both head and body applications includes: a shielding chamber, a master-slave manipulator, a radiation source storage device, and a gamma knife shielding plug moving device. The shielding chamber covers one side of the gamma knife treatment head close to the radiation source conversion port, and the gamma knife shielding plug is arranged on the radiation source conversion port of the gamma knife treatment head. The radiation source storage device is arranged in the shielding chamber. The master-slave manipulator passes through the shielding chamber. The master-slave manipulator includes a master-end manipulator and a slave-end manipulator. The master-end manipulator is arranged outside the shielding chamber, and the slave-end manipulator is arranged inside the shielding chamber. A radiation source emergency receiving tray is arranged in the shielding chamber, and the radiation source emergency receiving tray is arranged below the radiation source conversion port.

[0005] Preferably, the gamma knife shielding plug moving device includes: a pull rod, a shielding plug connecting plate, and a shielding plug moving mechanism. The pull rod passes through the shielding chamber and is connected to the shielding chamber in a pull-and-pull manner. The shielding plug moving mechanism is provided with a Z-axis moving mechanism and a Y-axis moving mechanism. The Y-axis moving mechanism is connected to the Z-axis moving mechanism. The shielding plug connecting plate is connected to the Y-axis moving mechanism, and the shielding plug connecting plate faces the shielding plug.

[0006] Preferably, one end of the pull rod arranged inside the shielding chamber is a T-shaped connecting end, and the Y-axis moving mechanism is provided with a U-shaped connecting end corresponding to the T-shaped connecting end. The T-shaped connecting end of the pull rod is connected to the U-shaped connecting end of the Y-axis moving mechanism, and the pull rod pushes and pulls the Y-axis moving mechanism to slide along the Y axis.

[0007] Preferably, the Y-axis moving mechanism is arranged on the Z-axis moving mechanism, and the Z-axis moving mechanism is provided with a driving component, a transmission component and a Z-axis moving component, the driving component is arranged outside the shielding room, and the driving component is connected to the Z-axis moving component through the transmission component.

[0008] Preferably, the shielding room is assembled from shielding blocks.

[0009] Preferably, the shielding block is assembled by concave and convex fitting.

[0010] Preferably, the shielding room is provided with a shielding observation window.

[0011] Preferably, a shadowless lamp is provided in the shielding room.

[0012] Preferably, a lifting mechanism is also provided outside the shielding room, and the lifting mechanism is arranged above the radiation source storage device. When the radiation source storage device is opened, the lifting mechanism connects and lifts the sealing cover of the radiation source storage device, and when the radiation source storage device is closed, the lifting mechanism drops the sealing cover of the radiation source storage device.

[0013] Preferably, the head-body dual-purpose gamma knife radiation source installation and replacement device is provided with a supporting operation platform and an equipment installation gantry, wherein the supporting operation platform is arranged at the bottom of the device, and the equipment installation gantry is arranged above the device.

[0014] The beneficial effects of the above technical solution of the present invention are as follows:

[0015] In the above scheme, by setting up a shielding room, it is possible to effectively protect workers from the impact of radiation when installing and replacing radioactive sources. The gamma knife shielding plug moving device is set up to quickly and accurately install and remove the gamma knife shielding plug, thereby improving operational efficiency and accuracy and reducing the time of radiation impact. The master-slave manipulator is set up to avoid direct contact between operators and the radioactive source, and facilitates the grabbing, installation, replacement and placement of the radioactive source. The emergency receiving tray is set up to receive the radioactive source when it falls, and can facilitate the operator to temporarily place the radioactive source in an emergency, thereby improving the safety and fault tolerance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the head-body dual-purpose gamma knife radiation source installation and replacement equipment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the head-body dual-purpose gamma knife radiation source installation and replacement equipment of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the head-body dual-purpose gamma knife radiation source installation and replacement equipment of the present invention;

[0019] Figure 4 Schematic diagram of the gamma knife shielding plug moving device structure according to an embodiment of the present invention;

[0020] Figure 5 Schematic diagram of the connecting rod connection of the gamma knife shielding plug moving device according to an embodiment of the present invention;

[0021] Figure 6 Schematic diagram of the gamma knife shielding plug moving device structure according to an embodiment of the present invention.

[0022] [Description of main component symbols]

[0023] Shielding chamber 1;

[0024] Master-slave manipulator 2;

[0025] Radioactive source storage device 3;

[0026] Gamma knife shielding plug moving device 4;

[0027] Shielding plug 5;

[0028] Radioactive source emergency receiving tray 6;

[0029] Shielding observation window 7;

[0030] Shadowless lamp 8;

[0031] Lifting mechanism 9;

[0032] Support operation platform 10;

[0033] Equipment installation gantry 11;

[0034] Connecting rod 12;

[0035] Shielding plug connecting plate 13;

[0036] Connection screw hole 14;

[0037] Worm and worm gear reducer 15;

[0038] Drive shaft 16;

[0039] Component base 17;

[0040] Z-axis moving table 18;

[0041] Z-axis linear guide 19;

[0042] Lead screw 20;

[0043] Right-angle gear 21;

[0044] T-shaped connection end 22;

[0045] U-shaped connection end 23;

[0046] Y-axis moving stage 24;

[0047] Y-axis linear guide 25. Detailed implementation manners

[0048] To make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

[0049] As Figures 1 to 3 shown, an embodiment of the present invention is a head-body dual-purpose gamma knife radiation source installation and replacement device. The head-body dual-purpose gamma knife radiation source installation and replacement device includes: a shielding room 1, a master-slave manipulator 2, a radiation source storage device 3, and a gamma knife shielding plug moving device 4. The shielding room 1 covers one side of the gamma knife treatment head close to the radiation source conversion port. A gamma knife shielding plug 5 is arranged on the radiation source conversion port of the gamma knife treatment head. The radiation source storage device 3 is arranged in the shielding room 1. The master-slave manipulator 2 passes through the shielding room 1. The master-slave manipulator 2 includes a master-end manipulator and a slave-end manipulator. The master-end manipulator is arranged outside the shielding room 1, and the slave-end manipulator is arranged inside the shielding room 1. A radiation source emergency receiving tray 6 is arranged in the shielding room 1, and the radiation source emergency receiving tray 3 is arranged below the radiation source conversion port.

[0050] For the head-body dual-purpose gamma knife radiation source installation and replacement device of the embodiment of the present invention, by setting up a shielding room, it can effectively protect the staff from the influence of radiation when installing and replacing the radiation source. Setting up the gamma knife shielding plug moving device can quickly and accurately install and disassemble the gamma knife shielding plug, improve the operation efficiency and accuracy, and reduce the time of radiation influence. Setting up the master-slave manipulator can avoid the operator directly contacting the radiation source and facilitate grasping, installing, replacing and placing the radiation source. Setting up the emergency receiving tray can receive the radiation source when the radiation source falls and can facilitate the operator to temporarily place the radiation source in case of emergency, improving the safety and fault tolerance of the device.

[0051] Preferably, the shielding room 1 is assembled by shielding blocks. The shielding blocks are assembled with concave-convex fits. The shielding room is provided with a shielding observation window 7. A shadowless lamp 8 is arranged in the shielding room 1. A hoisting mechanism 9 is also arranged in the shielding room 1. The hoisting mechanism 9 is arranged above the radiation source storage device 3. When the radiation source storage device 3 is opened, the hoisting mechanism 9 connects and lifts the sealing cover of the radiation source storage device 3. When the radiation source storage device 3 is closed, the hoisting mechanism drops the sealing cover of the radiation source storage device 3.

[0052] The shielding block can be made of Q235 thick steel plate with better radiation protection effect, lower price, more convenient processing and shorter production cycle. The side of the shielding room close to the gamma knife treatment head can adopt the profiling design concept, and the same shape as the outside of the integrated knife source port is processed on the wall, which improves the assembly efficiency and the assembly accuracy of the whole machine. The shadowless lamp can adopt two left and right shadowless LED light sources to provide sufficient brightness in the shielding room, and at the same time, a spare shadowless LED light source is installed on the front wall for use in case of emergency. The shielding observation window can adopt a lead shielding observation window.

[0053] In this embodiment, by assembling the shielding room from shielding blocks, the installation and transportation of the shielding room can be facilitated. The shielding blocks are assembled by concave-convex fitting, which can effectively shield radiation at the assembly gap. Setting the shielding observation window can facilitate the operation and observation of the operator, and setting the shadowless lamp can effectively improve the visibility of the operation environment and reduce interference. Setting the hoisting mechanism can facilitate the operator to open and close the sealing cover of the radioactive source storage device.

[0054] Preferably, the head-body dual-purpose gamma knife radioactive source installation and replacement equipment is provided with a support operation platform 10 and an equipment installation gantry 11. The support operation platform 1 is arranged at the bottom of the equipment, and the equipment installation gantry 11 is arranged above the equipment.

[0055] In this embodiment, by setting the support operation platform and the equipment installation gantry, the rapid and stable installation of the device can be facilitated.

[0056] As Figures 4 to 6 shown, the gamma knife shielding plug moving device 4 includes: a pull rod 12, a shielding plug connecting plate 13 and a shielding plug 5 moving mechanism. The pull rod 12 passes through the shielding room and is connected to the shielding room by pulling. The shielding plug moving mechanism is provided with a Z-axis moving mechanism and a Y-axis moving mechanism. The Y-axis moving mechanism is connected to the Z-axis moving mechanism. The shielding plug connecting plate 13 is connected to the Y-axis moving mechanism. The shielding plug connecting plate 13 faces the shielding plug 5. The shielding plug connecting plate 13 is provided with connecting screw holes 14 corresponding to the shielding plug 5. The connecting bolts pass through the shielding plug connecting plate 13 and are connected to the connecting screw holes 14 of the shielding plug 5 to connect the shielding plug connecting plate 13 and the shielding plug 5. Preferably, stepped enlarged shielding connectors are provided at the places where the pull rod 12 and the transmission shaft 16 pass through the shielding room, so as to effectively avoid the leakage of radiation.

[0057] In this embodiment, the gamma knife shielding plug moving device can quickly move the gamma knife shielding plug 5 by using the pull rod 12, the Z-axis moving mechanism and the Y-axis moving mechanism, bear the weight of the gamma knife shielding plug 5, has a simple structure, is safe and reliable, avoids the operator from contacting the radiation when the gamma knife shielding plug 5 is opened, and improves the efficiency.

[0058] Preferably, the Y-axis moving mechanism is arranged on the Z-axis moving mechanism. The Z-axis moving mechanism is provided with a driving component, a transmission component and a Z-axis moving component. The driving component is arranged outside the shielding chamber, and the driving component is connected to the Z-axis moving component through the transmission component. Specifically, the driving component is a worm and worm gear reducer 15, the transmission component is a transmission shaft 16, and the Z-axis moving component includes a component base 17, a Z-axis moving table 18, a Z-axis linear guide rail 19, a lead screw 20 and a bevel gear 21. The Z-axis linear guide rail 19 is arranged on the component base 17, the Z-axis moving table 18 is arranged on the Z-axis linear guide rail 19. One end of the transmission shaft 16 is connected to the worm and worm gear reducer 15, and the other end of the transmission shaft 16 is connected to the lead screw 20 through the bevel gear 21. The lead screw 20 drives the Z-axis moving table 18 to move along the Z-axis. The worm and worm gear reducer 15 is provided with a driving handle. The lead screw 20 can be a ball screw, and the bevel gear 21 can be a bevel gear pair.

[0059] In this embodiment, by arranging the worm and worm gear reducer 15, the transmission shaft 16, the base, the Z-axis moving table 18, the Z-axis linear guide rail 19, the lead screw 20 and the bevel gear 21, the heavy gamma knife shielding plug 5 can be effectively moved along the Z-axis outside the shielding chamber and can be accurately stopped at any position within the stroke range.

[0060] Preferably, one end of the pull rod 12 arranged inside the shielding chamber is a T-shaped connection end 22. The Y-axis moving mechanism is provided with a U-shaped connection end 23 corresponding to the T-shaped connection end 22. The T-shaped connection end 22 of the pull rod 12 is connected to the U-shaped connection end 23 of the Y-axis moving mechanism. The pull rod 12 pushes and pulls the Y-axis moving mechanism to slide along the Y-axis. Specifically, the Y-axis moving mechanism includes a Y-axis moving table 24, a Y-axis linear guide rail 25 and a radioactive source emergency receiving tray 6. The Y-axis linear guide rail 25 is arranged on one side of the Y-axis moving table 24 close to the Z-axis moving mechanism. The radioactive source emergency receiving tray 6 is arranged on the top of the Y-axis moving table 24. The U-shaped connection end 23 is arranged on one side of the Y-axis moving table 24 close to the pull rod 12. The shielding plug connecting plate 13 is arranged on one side of the Y-axis moving table 24 close to the shielding plug 5.

[0061] In this embodiment, by providing the T-shaped connection end 22 of the pull rod 12, the Y-axis moving platform 24, the Y-axis linear guide 25, the U-shaped connection end 23, and the radioactive source emergency receiving tray 6, the pull rod 12 can be quickly connected to and separated from the Y-axis moving platform 24. When the pull rod 12 is connected to the Y-axis moving platform 24, the gamma knife shielding plug 5 can be controlled to move along the Y-axis by pushing and pulling the pull rod 12 outside the shielding room. The radioactive source emergency receiving tray 6 is provided, which not only saves installation space but also enables the radioactive source emergency receiving tray 6 to automatically move under the radioactive source conversion port along with the Y-axis moving platform 24. It can receive the radioactive source when the radioactive source falls and can facilitate the operator to temporarily place the radioactive source in case of an emergency, improving the safety and fault tolerance of the equipment.

[0062] When removing the shielding plug 5, remove the bolts of the shielding plug 5, push the pull rod 12 towards the shielding room, the Z-axis moving mechanism drives the Y-axis moving mechanism to rise, the Y-axis moving mechanism drives the shielding plug connecting plate 13 to move towards the shielding plug 5, the T-shaped connection end 22 of the pull rod 12 is connected to the U-shaped connection end 23 of the Y-axis moving mechanism, the shielding plug connecting plate 13 and the shielding plug 5 are connected by bolts, pull the pull rod 12 out of the shielding room, remove the shielding plug 5, the Z-axis moving mechanism drives the Y-axis moving mechanism to descend, the T-shaped connection end 22 of the pull rod 12 is separated from the U-shaped connection end 23 of the Y-axis moving mechanism, and the radioactive source emergency receiving tray 6 moves under the radioactive source conversion port.

[0063] When the radioactive source storage device is opened, the hoisting mechanism connects and lifts the sealing cover of the radioactive source storage device. The operator can use the master manipulator of the master-slave manipulator outside the shielding room to control the slave manipulator to take out the radioactive source to be replaced in the radioactive source conversion port of the gamma knife treatment head. The operator uses the master manipulator of the master-slave manipulator outside the shielding room to control the slave manipulator to grab the radioactive source from the radioactive source storage device and install the grabbed radioactive source into the radioactive source conversion port of the gamma knife treatment head. When the radioactive source storage device is closed, the hoisting mechanism lowers the sealing cover of the radioactive source storage device.

[0064] When installing the shielding plug 5, the Z-axis moving mechanism drives the Y-axis moving mechanism to rise, the T-shaped connection end 22 of the pull rod 12 is connected to the U-shaped connection end 23 of the Y-axis moving mechanism, the pull rod 12 is pushed towards the shielding room, the Y-axis moving mechanism drives the shielding plug 5 to move towards the radioactive source conversion port, the shielding plug connecting plate 13 is separated from the shielding plug 5, the shielding plug 5 is installed, the Z-axis moving mechanism drives the Y-axis moving mechanism to descend, and the T-shaped connection end 22 of the pull rod 12 is separated from the U-shaped connection end 23 of the Y-axis moving mechanism, and the bolts of the shielding plug 5 are installed.

[0065] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A device for installing and replacing the gamma knife radiation source for both head and body use, characterized in that, the device for installing and replacing the gamma knife radiation source for both head and body use includes: a shielding room, a master-slave manipulator, a radiation source storage device, and a gamma knife shielding plug moving device. The shielding room covers one side of the gamma knife treatment head close to the radiation source conversion port. The gamma knife shielding plug is arranged on the radiation source conversion port of the gamma knife treatment head. The radiation source storage device is arranged in the shielding room. The master-slave manipulator passes through the shielding room. The master-slave manipulator includes a master-end manipulator and a slave-end manipulator. The master-end manipulator is arranged outside the shielding room, and the slave-end manipulator is arranged inside the shielding room. An emergency radiation source receiving tray is arranged in the shielding room. The emergency radiation source receiving tray is arranged below the radiation source conversion port. The shielding room is provided with a lead shielding observation window.

2. The device for installing and replacing the gamma knife radiation source for both head and body use according to claim 1, characterized in that, the gamma knife shielding plug moving device includes: a pull rod, a shielding plug connecting plate, and a shielding plug moving mechanism. The pull rod passes through the shielding room and is connected to the shielding room in a pull-and-pull manner. The shielding plug moving mechanism is provided with a Z-axis moving mechanism and a Y-axis moving mechanism. The Y-axis moving mechanism is connected to the Z-axis moving mechanism. The shielding plug connecting plate is connected to the Y-axis moving mechanism. The shielding plug connecting plate faces the shielding plug.

3. The device for installing and replacing the gamma knife radiation source for both head and body use according to claim 2, characterized in that, one end of the pull rod arranged in the shielding room is a T-shaped connecting end. The Y-axis moving mechanism is provided with a U-shaped connecting end corresponding to the T-shaped connecting end. The T-shaped connecting end of the pull rod is connected to the U-shaped connecting end of the Y-axis moving mechanism. The pull rod pushes and pulls the Y-axis moving mechanism to slide along the Y-axis.

4. The device for installing and replacing the gamma knife radiation source for both head and body use according to claim 2, characterized in that, the Y-axis moving mechanism is arranged on the Z-axis moving mechanism. The Z-axis moving mechanism is provided with a driving component, a transmission component, and a Z-axis moving component. The driving component is arranged outside the shielding room. The driving component is connected to the Z-axis moving component through the transmission component.

5. The device for installing and replacing the gamma knife radiation source for both head and body use according to claim 1, characterized in that, the shielding room is assembled by shielding blocks.

6. The device for installing and replacing the gamma knife radiation source for both head and body use according to claim 5, characterized in that, the shielding blocks are assembled by concave-convex fitting.

7. The device for installing and replacing the gamma knife radiation source for both head and body use according to claim 1, characterized in that, the shielding room is provided with a shielding observation window.

8. The device for installing and replacing the gamma knife radiation source for both head and body use according to any one of claims 1 or 7, characterized in that, a shadowless lamp is arranged in the shielding room.

9. The device for installing and replacing the gamma knife radiation source for both head and body use according to claim 1, characterized in that, A hoisting mechanism is further provided outside the shielding chamber. The hoisting mechanism is arranged above the radioactive source storage device. When the radioactive source storage device is opened, the hoisting mechanism connects to and lifts the sealing cover of the radioactive source storage device. When the radioactive source storage device is closed, the hoisting mechanism lowers the sealing cover of the radioactive source storage device.

10. The head-body dual-purpose gamma knife radioactive source installation and replacement equipment according to claim 1, characterized in that the head-body dual-purpose gamma knife radioactive source installation and replacement equipment is provided with a support operation platform and an equipment installation gantry. The support operation platform is arranged at the bottom of the equipment, and the equipment installation gantry is arranged above the equipment.

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