Gamma knife radioactive source transferring and pouring tank

Abstract

The invention relates to a gamma knife radioactive source transfer source pouring tank which comprises a shielding tank body, a mounting flange, a left manual pull rod, a right manual pull rod, a left shielding sliding block, a right shielding sliding block, a left transmission rack and a right transmission rack. The shielding rod is arranged in the cylindrical inner cavity, first guide grooves are formed in the two sides of the bottom of the cylindrical inner cavity respectively, a left shielding sliding block is arranged in the first guide groove in the left side, a right shielding sliding block is arranged in the first guide groove in the right side, and a left manual pull rod and a right manual pull rod are arranged on the two sides of the shielding tank body respectively. Each of the left manual pull rod and the right manual pull rod comprises a manual pull rod and a short rod, the manual pull rod is arranged on the shielding tank body through a hinge, one end of the short rod is connected with the manual pull rod through a hinge, the other end of the short rod is connected with the shielding slide block through a hinge, and the left transmission rack and the right transmission rack are respectively arranged on the left shielding slide block and the right shielding slide block. According to the invention, safe and automatic transfer and source reversing operation of the radioactive source can be realized, radiation exposure of operators is reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of radioactive source transportation, and in particular to a radioactive source transportation and source reversal tank for a gamma knife device, which is used for safely transporting and reversing radioactive sources in the gamma knife device, thereby realizing automatic, safe and reliable radioactive source reversal without the need for operators to stay in an operating room. Background Art

[0002] The Gamma Knife is a device that uses gamma beams from a cobalt-60 radioactive source to treat malignant tumors and benign lesions. Loading and replacing the radioactive source is essential during the use of the Gamma Knife. Traditional source replacement methods rely on manual operation, requiring operators to work for long periods of time in a high-radiation environment near the source. This not only poses a health risk to the operator but also increases operating costs for the company.

[0003] The existing source reversal method usually involves building a hot room outside the gamma knife equipment or using a source reversal tool for manual source reversal. This method has the following drawbacks: 1) High radiation risk for operators: Operators need to work for a long time in a high-radiation environment near the radiation source and are susceptible to radiation damage from gamma rays. 2) Low operating efficiency: Manual source reversal operations rely on the proficiency of the operator. Improper operation may lead to source reversal failure and prolong the operation time. 3) High cost: In order to ensure that the radiation dose of operators does not exceed the standard, companies need to allocate more operators for rotation operations, which increases labor costs.

[0004] Therefore, there is an urgent need for a device that can automatically complete the transfer and reversal of radioactive sources to reduce the radiation exposure of operators, improve operational efficiency, and reduce enterprise costs. Summary of the Invention

[0005] In order to solve the above-mentioned technical problems existing in the background technology, the present invention provides a gamma knife radioactive source transfer and source reversal tank, which can realize the safe and automatic transfer and source reversal operation of the radioactive source, reduce the radiation exposure of the operator, and improve the operation efficiency.

[0006] The technical solution of the present invention is: the present invention is a gamma knife radioactive source transport and inverted source tank, which is special in that: the gamma knife radioactive source transport and inverted source tank includes a shielding tank body, a mounting flange, a left manual pull rod, a right manual pull rod, a left shielding slider, a right shielding slider, a left transmission rack and a right transmission rack. The mounting flange is arranged on the top of the shielding tank body, a cylindrical inner cavity is arranged in the shielding tank body, the shielding rod is arranged in the cylindrical inner cavity and can move up and down along the cylindrical inner cavity, first guide grooves are respectively arranged on both sides of the bottom of the cylindrical inner cavity, the left shielding slider is arranged in the first guide groove on the left side, and the right shielding slider is arranged in the first guide groove on the right side, a left manual pull rod and a right manual pull rod are respectively provided on both sides of the shielding tank body, the left manual pull rod and the right manual pull rod both include a manual pull rod and a short rod, the manual pull rod is arranged on the shielding tank body by a hinge, one end of the short rod is connected to the manual pull rod by a hinge, and the other end is connected to the shielding slider by a hinge, the left transmission rack and the right transmission rack are respectively arranged on the left shielding slider and the right shielding slider, and can move synchronously with them.

[0007] Furthermore, the gamma knife radiation source transfer tank also includes electrical components, which include an S1-axis main drive motor, an S1-axis auxiliary drive motor, an S2-axis main drive motor, an S2-axis auxiliary drive motor and an S-axis electrical switch. The S1-axis main drive motor and the S1-axis auxiliary drive motor are independent of each other, and the S2-axis main drive motor and the S2-axis auxiliary drive motor are independent of each other. The S1-axis main drive motor, the S1-axis auxiliary drive motor, the S2-axis main drive motor, the S2-axis auxiliary drive motor and the S-axis electrical switch are respectively installed and fixed on the fixed mounting plates on the left and right outer sides of the shielding tank body. The S1-axis main drive motor and the S1-axis auxiliary drive motor are respectively engaged with the left transmission rack through two reducers and a pinion connected to the end of the reducer. The S2-axis main drive motor and the S2-axis auxiliary drive motor are respectively engaged with the right transmission rack through two reducers and a pinion connected to the end of the reducer. The S-axis electrical switch includes two S-axis main electrical switches on the left and two S-axis auxiliary electrical switches on the right. The two electrical switches are respectively located at the extreme positions of the linear motion range of their corresponding shielding sliders.

[0008] Furthermore, the mounting flange is in the shape of a hollow cylindrical stepped shaft, including a mounting cylindrical surface and a lower cylindrical surface. The mounting cylindrical surface is arranged above the lower cylindrical surface, and a step is arranged around the upper end of the mounting cylindrical surface. Both the mounting cylindrical surface and the lower cylindrical surface have hollow cylindrical inner cavities, and the axes of the two hollow cylindrical inner cavities coincide.

[0009] Furthermore, the gamma knife radiation source transfer tank also includes a docking flange, which is arranged at the bottom of the shielding tank body. The docking flange is hollow cylindrical and can accommodate the shielding rod to pass vertically.

[0010] Furthermore, a second guide groove is provided on the upper surface of the docking flange, which is consistent with the direction of the first guide groove. The first guide groove and the second guide groove together constitute a horizontal sliding channel for the left shielding slider and the right shielding slider, and the axis of the hollow inner cylindrical surface of the docking flange coincides with the axis of the outer cylindrical surface of the docking flange.

[0011] Furthermore, an electrical switch is provided on the outer side of the lower cylindrical surface.

[0012] Furthermore, the shielding tank, the left shielding slider and the right shielding slider are all made of radiation shielding materials.

[0013] The present invention provides a gamma knife radioactive source transport and inversion tank, wherein a cylindrical inner cavity is provided inside the shielding tank body, the outline of which is consistent with the shielding rod loaded with the radioactive source, and the shielding rod can be accommodated in the cavity and vertically raised and lowered along the inner cavity channel; a guide groove is provided below the shielding tank body, which can accommodate the horizontal linear movement of the left shielding slider and the right shielding slider in the groove; the tank body is made of radiation shielding material and is provided with a sufficient screen wall thickness to ensure that after the inner cavity accommodates the shielding rod containing the radioactive source, the released radiation can be reduced to a certain safety range after being shielded by the shielding rod. The mounting flange is set to be a hollow cylindrical stepped shaft shape, and the axes of the outer cylindrical step surface of the mounting flange, the hollow inner hole and the cylindrical inner cavity of the shielding tank body coincide with each other; among them, the outer cylindrical step surface is used for the external mounting interface of the transfer device to realize the transfer of the source tank at different workstations; the step at its upper end is used for the support of the entire transfer source tank, and the hollow inner cavity at the upper end is used for the mounting channel of the internal mounting interface of the transfer device to realize the end execution component of the transfer device to take out and pour in the shielding rod loaded with the radioactive source; the inside of the lower end cylindrical surface is also a hollow cylindrical cavity, and its axis coincides with the cylindrical inner cavity inside the shielding tank body, and the two together form the storage and vertical movement space of the shielding rod. The connecting flange is designed as a hollow cylindrical shape, with a guide groove on its upper surface aligned with the guide groove below the shielding tank, forming a horizontal sliding channel for the left and right shielding sliders. The outer cylindrical surface coincides with the axis of the gamma knife device's inverted source cylindrical channel, allowing for docking and positioning with the gamma knife device's inverted source port. The hollow inner cylindrical surface coincides with the axis of the outer cylindrical surface, forming an internal inverted source channel. The left and right shielding sliders are positioned below the shielding tank and above the connecting flange. They can slide horizontally relative to each other within the grooved space between the shielding tank and the connecting flange. The central axis of the horizontal movement intersects perpendicularly with the vertical inner axis of the shielding tank. The inverted source channel below the tank is opened and closed by the two sliders moving away from and toward each other. The width of both sliders is slightly larger than the inner diameter of the inverted source channel, ensuring shielding of the radioactive source below the shielding rod when the channel is closed. The transfer source tank can be used in combination with a special automatic source dumping device or an industrial robot or other transfer device. After the source tank is mounted on it, it can be coordinated with the movement of the external device to realize the automatic transfer and dumping of the radioactive source between different workstations in the shielded machine room. The electrical components of each motion axis of the transfer source tank adopt a redundant design. When the main control component fails, the sub-control component automatically takes over the relevant control tasks, and the two components are independent of each other and redundant. The source tank is equipped with a manual pull rod, which can be used for emergency operation when the automatic control system fails. The reasonable connecting rod structure design and the appropriate pressure angle ensure that the manual operation is easy and smooth. The left and right shielding sliders are made of radiation shielding materials, and the facing surfaces adopt an asymmetric step surface structure to ensure that when the channel is closed, there is always a certain thickness of shielding material directly below the radiation source for shielding protection, avoiding the sliders from not fitting tightly and causing gaps, thereby causing radiation to be emitted directly from directly below.Therefore, the present invention has the following advantages:

[0014] 1) High safety: The source tank provided by the present invention uses radiation shielding materials to effectively shield the gamma rays released by the radioactive source, ensuring a safe operating environment. The shielding slider design prevents accidental exposure of the radioactive source during transportation, further improving operational safety.

[0015] 2) High degree of automation: The present invention can be used in conjunction with a dedicated automatic source reversal device or an automated industrial robot to achieve automatic transportation and reversal of radioactive sources, reduce radiation exposure of operators, and improve operational efficiency.

[0016] 3) Easy to operate: The present invention is designed with a manual pull rod, which can manually control the opening and closing of the shielding slider in an emergency, ensuring the reliability of the operation.

[0017] 4) Wide scope of application: The present invention is applicable to the radioactive source transport and source reversal operations of various gamma knife devices and has a wide range of application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 is a cross-sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the shielding tank of the present invention;

[0021] Figure 4 This is a schematic diagram of the mounting flange of the present invention;

[0022] Figure 5 Schematic diagram of the docking flange of the present invention;

[0023] Figure 6 Schematic diagram of the transfer of the source tank and the dedicated gamma knife radioactive source. Figure 1 ;

[0024] Figure 7 Schematic diagram of the transfer of the source tank and the dedicated gamma knife radioactive source. Figure 2 ;

[0025] Figure 8 This is a schematic diagram of the mounting of the transfer source tank;

[0026] Figure 9 This is a schematic diagram of the source tank's reverse position;

[0027] Figure 10 This is a schematic diagram of the inverted source position of the Gamma Knife device;

[0028] Figure 11Schematic diagram of the transfer tank and the industrial robot Figure 1 ;

[0029] Figure 12 Schematic diagram of the transfer tank and the industrial robot Figure 2 ;

[0030] The following are the descriptions of the reference numerals:

[0031] 100. Gamma Knife Equipment; 101. Source Tank; 102. Shielding Rod

[0032] 110. Gamma Knife radioactive source transfer tank; 115. Source tank assembly; 128. Electrical components; 140. Industrial robot;

[0033] 1122, mounting bracket; 1138, timing belt; 1161, source tank flange; 1162, gamma knife equipment flange; 1163, guide flange;

[0034] 1151. Shielding tank; 1152. Mounting flange; 1153. Docking flange; 1154. Left manual pull rod; 1155. Right manual pull rod; 1156. Left shielding slider; 1157. Right shielding slider; 1158. Left transmission rack; 1159. Right transmission rack; 1272. Electrical switch;

[0035] 1151.1, cylindrical inner cavity; 1151.2, first guide groove;

[0036] 1152.1, mounting cylindrical surface; 1152.2, hollow cylindrical inner cavity; 1152.3, lower cylindrical surface; 1152.4, step;

[0037] 1153.1, second guide groove; 1153.2, outer cylindrical surface; 1153.3, inner cylindrical surface;

[0038] 1281, S1 axis main drive motor; 1282, S1 axis auxiliary drive motor; 1283, S2 axis main drive motor; 1284, S2 axis auxiliary drive motor; 1285, S axis electrical switch. DETAILED DESCRIPTION

[0039] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0040] See also Figure 1 、 23. The structure of the specific embodiment of the gamma knife radiation source transfer tank 115 of the present invention includes: a shielding tank body 1151, a mounting flange 1152, a docking flange 1153, a left manual pull rod 1154, a right manual pull rod 1155, a left shielding slider 1156, a right shielding slider 1157, a left transmission rack 1158, a right transmission rack 1159, and an electrical component 128. Among them:

[0041] Shielding tank 1151 has a cylindrical interior 1151.1, which accommodates the shielding rod 102 and allows it to be raised and lowered vertically along the cavity. The cylindrical interior 1151.1 aligns with the shielding rod 102, which holds the radioactive source, allowing it to be held and raised and lowered vertically along the cavity. Shielding tank 1151 is constructed of radiation-shielding material and has a sufficient wall thickness to ensure that, after the shielding rod 102, containing the radioactive source, is housed within the cavity, the radiation released is shielded and reduced to a safe level. Below shielding tank 1151, first guide grooves 1151.2 are located on either side of the bottom of cylindrical interior 1151.1, accommodating the horizontal and linear movement of left and right shielding sliders 1156 and 1157 within these grooves. Shielding tank 1151 is constructed of radiation-shielding material and has a sufficient wall thickness to ensure that, after the shielding rod 102, containing the radioactive source, is housed within the cavity, the radiation released is shielded and reduced to a safe level. The left shielding slider 1156 and the right shielding slider 1157 are disposed within the first guide groove 1151.2 and the second guide groove 1153.1 between the shielding tank 1151 and the docking flange 1153, and can slide relative to each other in the horizontal direction. The opening and closing of the source inversion channel below the tank is achieved by moving the two sliders away from and approaching each other. The central axis of the horizontal movement perpendicularly intersects the vertical inner axis of the shielding tank 1151. The opening and closing of the source inversion channel below the tank is achieved by moving the two sliders away from and approaching each other. The width of both is slightly larger than the inner diameter of the source inversion channel, ensuring that the radiation source below the shielding rod is shielded when the channel is closed. The left transmission rack 1158 and the right transmission rack 1159 are respectively disposed within the mounting grooves on both sides of the upper surfaces of the left shielding slider 1156 and the right shielding slider 1157. There is a set of transmission racks on each side, which are matched with the electrical component 128 to form redundant transmission and control.

[0042] The electrical component 128 includes: an S1-axis main drive motor 1281, an S1-axis auxiliary drive motor 1282, an S2-axis main drive motor 1283, an S2-axis auxiliary drive motor 1284 and an S-axis electrical switch 1285. The S1-axis main drive motor 1281 and the S1-axis auxiliary drive motor 1282 are independent of each other, and the S2-axis main drive motor 1283 and the S2-axis auxiliary drive motor 1284 are independent of each other. The S1-axis main drive motor 1281, the S1-axis auxiliary drive motor 1282, the S2-axis main drive motor 1283, the S2-axis auxiliary drive motor 1284 and the S-axis electrical switch 1285 are respectively installed and fixed on the fixed mounting plates on the left and right outer sides of the shielding tank 1151. The S1-axis main drive motor 1281 and the S1-axis auxiliary drive motor 1282 are respectively engaged with the left transmission rack 1158 through two reducers and a small gear connected to the end of the reducer. The S2-axis main drive motor 1283 and the S2-axis auxiliary drive motor 1284 are respectively engaged with the right transmission rack 1159 through two reducers and a small gear connected to the end of the reducer. The S-axis electrical switch 1285 includes two S-axis main electrical switches on the left and two S-axis auxiliary electrical switches on the right. The two electrical switches are respectively located at the extreme positions of the linear motion range of their corresponding shielding sliders.

[0043] See also Figure 4In the specific embodiment of the mounting flange 1152 of the present invention, the mounting flange 1152 is configured as a hollow cylindrical stepped shaft. It includes a mounting cylindrical surface 1152.1 and a lower cylindrical surface 1152.3. The mounting cylindrical surface 1152.1 is positioned above the lower cylindrical surface 1152.3. A step 1152.4 is provided around the upper end of the mounting cylindrical surface 1152.1. Both the mounting cylindrical surface 1152.1 and the lower cylindrical surface 1152.3 contain a hollow cylindrical inner cavity 1152.2, with the axes of the two hollow cylindrical inner cavities 1152.2 coinciding. Among them, the external mounting cylindrical surface 1152.1 is used for positioning and docking the mounting bracket 1122 of the special transfer device, and the step 1152.4 at the upper end is used to support the entire transfer source tank; the hollow cylindrical inner cavity 1152.2 of the mounting cylindrical surface 1152.1 constitutes the mounting channel of the internal shielding rod 102; the hollow cylindrical inner cavity inside the lower end cylindrical surface 1152.3, its axis coincides with the cylindrical inner cavity 1151.1 inside the shielding tank body 1151, and the two together form the storage and vertical movement space of the shielding rod 102. The axes of the outer cylindrical stepped surface of step 1152.4 of mounting flange 1152, the hollow cylindrical inner cavity 1152.2, and the cylindrical inner cavity 1151.1 of shielding can 1151 coincide. The outer cylindrical stepped surface serves as the external mounting interface of the transfer device, enabling the transfer of the source canister between different workstations. The hollow cylindrical inner cavity 1152.2 serves as the mounting channel of the internal mounting interface of the transfer device, enabling the transfer device's end effector assembly to remove and insert the shielding rod carrying the radioactive source. An electrical switch 1272 is located on the outer side of the lower cylindrical surface 1152.3.

[0044] See also Figure 5 In the specific embodiment of the docking flange 1153 of the present invention, the docking flange 1153 is configured as a hollow cylindrical shape. A second guide groove 1153.1 is provided on the surface of the docking flange 1153, aligned in the same direction as the first guide groove 1151.2 below the shielding tank 1151, together forming a horizontal sliding channel for the left shielding slider 1156 and the right shielding slider 1157. The outer cylindrical surface 1153.2 of the docking flange 1153 coincides with the axis of the inverted source cylindrical channel of the Gamma Knife device 100, facilitating docking and positioning with the inverted source port of the Gamma Knife device. The hollow inner cylindrical surface 1153.3 of the docking flange 1153 coincides with the axis of the outer cylindrical surface 1153.2, forming an internal inverted source channel. The outer cylindrical surface 1153.2 coincides with the axis of the inverted source cylindrical channel of the Gamma Knife device 100, facilitating docking and positioning with the inverted source port of the Gamma Knife device.

[0045] See also Figure 6 The first implementation scenario of the transfer source tank involved in the present invention is to use a dedicated gamma knife radioactive source transfer source tank in combination with the transfer source tank of the present invention to complete automatic source transfer. The specific implementation method is as follows:

[0046] After the gamma knife device 100 in the shielded room is ready for source transfer, the dedicated gamma knife radiation source transfer tank 110 is built in the shielded room in advance, and after the corresponding installation interface is accurately docked with the gamma knife device 100, wait for the source tank 101 to arrive before transferring the source.

[0047] After the radioactive source is transported to the shielded room, the lead plug on the top of the source tank 101 is removed, and the corresponding source inversion auxiliary tooling is installed, and the source tank is ready.

[0048] Special gamma knife radioactive source transport tank 110 rotated to Figure 7 The workstation 1 shown in FIG. 1 vertically lifts the inverted source tank 115 on the ground and rotates it to Figure 7 The workstation 2 shown in FIG. 1 completes the docking of the docking flange 1153 at the bottom of the source tank 115 and the guide flange 1163 installed on the source tank flange 1161, as shown in FIG. Figure 9 shown.

[0049] See also Figure 8 , unload the sling, slowly lower the synchronous belt 1139 at the end of the gamma knife radioactive source transport and inverted source tank 110, and connect the lifting joint at the end of the synchronous belt 1139 to the threaded hole at the top of the radioactive source shielding rod 102 in the inner cavity of the transport source tank 101; the mounting bracket 1122 at the end of the gamma knife radioactive source transport and inverted source tank 110 automatically mounts the mounting flange 1152 at the top of the inverted source tank 115 to complete the source inverted preparation.

[0050] After checking that the status is normal, the operator evacuates the scene and begins to drain the source. The Gamma Knife radioactive source transport tank 110 drives the lifting joint below the synchronous belt 1139 to rise, automatically lifting the radioactive source shielding rod 102 into the inner cavity channel of the drain tank 115. After triggering the electrical switch 1272, the lifting stops. At the same time, the left shielding slide 1156 and the right shielding slide 1157 below the drain tank 115 automatically close, closing the drain channel.

[0051] The gamma knife radioactive source transport tank 110 carries the source tank 115 mounted below it and automatically moves to the top of the gamma knife device 100 source loading position, that is, Figure 7 The gamma knife radioactive source transport tank 110 slowly lowers the robotic arm to complete the docking of the docking flange 1153 at the bottom of the tank 115 with the guide flange 1163 installed on the flange 1162 of the gamma knife device. Figure 10 shown.

[0052] The gamma knife radiation source transport tank 110 drives the lifting joint below the synchronous belt 1139 to descend, and the radiation source shielding rod 102 connected thereto automatically falls into the inner cavity channel of the gamma knife device 100, completing the source transfer.

[0053] See also Figure 11 、12 The second implementation scenario of the transfer source tank involved in the present invention is to use an industrial robot in combination with the transfer source tank of the present invention to complete automatic source reversal. The specific implementation method is as follows:

[0054] After the gamma knife device 100 in the shielded room is ready for source refill, the industrial robot 140 is installed and fixed in the shielded room in advance, and the corresponding motion trajectory is accurately taught with the gamma knife device 100, and then the source refill is carried out after the source tank 101 arrives.

[0055] After the radioactive source is transported to the shielded room, the lead plug on the top of the source tank 101 is removed, and the corresponding source inversion auxiliary tooling is installed, and the source tank is ready.

[0056] The industrial robot 140 rotates to Figure 7 The workstation 1 shown in FIG. 1 vertically lifts the inverted source tank 115 on the ground and rotates it to Figure 7 The workstation 2 shown in FIG. 1 completes the docking of the docking flange 1153 at the bottom of the source tank 115 and the guide flange 1163 installed on the source tank flange 1161, as shown in FIG. Figure 9 shown.

[0057] Unload the sling, slowly lower the synchronous belt 1139 at the end of the industrial robot 140, and connect the lifting joint at its end to the threaded hole at the top of the radiation source shielding rod 102 in the inner cavity of the source transport tank 101; the mounting bracket 1122 at the end of the industrial robot 140 automatically mounts the mounting flange 1152 on the top of the source inversion tank 115 to complete the source inversion preparation.

[0058] After checking that everything is normal, the operator leaves the scene and begins draining the source. Industrial robot 140 drives the lifting joint below synchronous belt 1139 to raise, automatically lifting radiation source shielding rod 102 into the inner cavity of drain tank 115. Triggering electrical switch 1272 stops the lifting process. Simultaneously, left and right shielding slides 1156 and 1157 below drain tank 115 automatically close, closing the drain channel.

[0059] The industrial robot 140 automatically moves with the source tank 115 mounted below it to the top of the source loading position of the gamma knife device 100. Figure 7 The industrial robot 140 slowly lowers its arm to complete the docking of the docking flange 1153 at the bottom of the source tank 115 with the guide flange 1163 installed on the flange 1162 of the gamma knife device, as shown in FIG. Figure 10 shown.

[0060] The industrial robot 140 drives the lifting joint below the synchronous belt 1139 to descend, and automatically drops the radiation source shielding rod 102 connected thereto into the inner cavity channel of the gamma knife device 100, completing the source inversion.

[0061] The content of the present invention and the technical content not specifically described in the above embodiments are the same as the prior art.

[0062] The above are only specific embodiments disclosed in the present invention, but the protection scope disclosed in the present invention is not limited thereto. The protection scope disclosed in the present invention shall be based on the protection scope of the claims.

Claims

1. A gamma knife radioactive source transport tank, characterized by: The gamma knife radiation source transport and inverted source tank includes a shielding tank body, a mounting flange, a left manual pull rod, a right manual pull rod, a left shielding slider, a right shielding slider, a left transmission rack and a right transmission rack. The mounting flange is arranged on the top of the shielding tank body, and a cylindrical inner cavity is arranged in the shielding tank body. The shielding rod is arranged in the cylindrical inner cavity and can move up and down along the cylindrical inner cavity. First guide grooves are respectively provided on both sides of the bottom of the cylindrical inner cavity, the left shielding slider is arranged in the first guide groove on the left side, and the right shielding slider is arranged in the first guide groove on the right side. A left manual pull rod and a right manual pull rod are respectively provided on both sides of the shielding tank body. The left manual pull rod and the right manual pull rod both include a manual pull rod and a short rod. The manual pull rod is arranged on the shielding tank body by a hinge, one end of the short rod is connected to the manual pull rod by a hinge, and the other end is connected to the shielding slider by a hinge. The left transmission rack and the right transmission rack are respectively arranged on the left shielding slider and the right shielding slider, and can move synchronously with them.

2. The Gamma Knife radioactive source transport tank according to claim 1, characterized in that: The gamma knife radiation source transfer tank also includes an electrical component, which includes an S1-axis main drive motor, an S1-axis auxiliary drive motor, an S2-axis main drive motor, an S2-axis auxiliary drive motor and an S-axis electrical switch. The S1-axis main drive motor and the S1-axis auxiliary drive motor are independent of each other, and the S2-axis main drive motor and the S2-axis auxiliary drive motor are independent of each other. The S1-axis main drive motor, the S1-axis auxiliary drive motor, the S2-axis main drive motor, the S2-axis auxiliary drive motor and the S-axis electrical switch are respectively installed and fixed on the fixed mounting plates on the left and right outer sides of the shielding tank body. The S1-axis main drive motor and the S1-axis auxiliary drive motor are respectively engaged with the left transmission rack through two reducers and a pinion connected to the end of the reducer. The S2-axis main drive motor and the S2-axis auxiliary drive motor are respectively engaged with the right transmission rack through two reducers and a pinion connected to the end of the reducer. The S-axis electrical switch includes two S-axis main electrical switches on the left and two S-axis auxiliary electrical switches on the right. The two electrical switches are respectively located at the extreme positions of the linear motion range of their corresponding shielding sliders.

3. The gamma knife radiation source transport tank according to claim 1 or 2, characterized in that: The mounting flange is in the shape of a hollow cylindrical stepped shaft, including a mounting cylindrical surface and a lower cylindrical surface. The mounting cylindrical surface is arranged above the lower cylindrical surface, and a step is arranged around the upper end of the mounting cylindrical surface. The mounting cylindrical surface and the lower cylindrical surface both have hollow cylindrical inner cavities, and the axes of the two hollow cylindrical inner cavities coincide.

4. The Gamma Knife radioactive source transport tank according to claim 3, characterized in that: The gamma knife radiation source transport tank further comprises a docking flange, which is arranged at the bottom of the shielding tank body. The docking flange is in a hollow cylindrical shape and can accommodate the shielding rod to pass vertically.

5. The Gamma Knife radioactive source transport tank according to claim 4, characterized in that: A second guide groove is provided on the upper surface of the docking flange, which is consistent with the direction of the first guide groove. The first guide groove and the second guide groove together constitute a horizontal sliding channel for the left shielding slider and the right shielding slider. The hollow inner cylindrical surface of the docking flange coincides with the axis of the outer cylindrical surface of the docking flange.

6. The Gamma Knife radioactive source transport tank according to claim 5, characterized in that: An electrical switch is arranged on the outer side of the lower cylindrical surface.

7. The Gamma Knife radioactive source transport tank according to claim 6, characterized in that: The shielding tank, the left shielding slider and the right shielding slider are all made of radiation shielding materials.

Images