Shielding device

Abstract

The embodiment of the present application provides a shielding device, including: at least one shielding shell segment, the at least one shielding shell segment forming a shielding chamber, the shielding chamber being arranged at the periphery of a radiation radiation device, and shielding the radiation generated by the radiation radiation device. The embodiment of the present application can arrange the shielding chamber at the periphery of the radiation radiation device, and use the shielding chamber to at least partially shield the scattered radiation generated by the radiation radiation device, thereby reducing the radiation shielding requirements of the radiation radiation device on a dedicated machine room or getting rid of the dependence of the radiotherapy device on a dedicated machine room.

Description

Technical Field

[0001] The present application relates to the field of medical technology, and in particular to a shielding device. Background Art

[0002] With the development of medical technology, radiation has become an important means of medical diagnosis and treatment. It emits radiation through a radiation source, which passes through the human body from different angles to diagnose and treat patients. Since radiation diagnosis or treatment equipment is radioactive, the radiation can cause harm to the operator or other personnel during diagnosis and treatment. Therefore, in existing facilities where radiation radiation equipment is placed, the houses that house radiation radiation equipment need to be modified to provide sufficient radiation shielding to ensure that no harm is caused to the operator or other personnel. Summary of the invention

[0003] In view of this, one of the technical problems solved by the embodiments of the present application is to provide a shielding device to overcome at least part of the problems existing in the prior art.

[0004] An embodiment of the present application provides a shielding device, which includes: at least one shielding shell segment, wherein the at least one shielding shell segment constitutes a shielding chamber, and the shielding chamber is arranged at the periphery of a ray radiation device and shields rays generated by the ray radiation device.

[0005] It can be seen from the above technical solutions that the embodiments of the present application can set a shielding chamber on the periphery of the radiation radiation equipment, and use the shielding chamber to at least partially shield the scattered rays generated by the radiation radiation equipment. Therefore, the radiation shielding requirements of the radiation radiation equipment for a dedicated machine room can be reduced or the dependence of the radiotherapy equipment on a dedicated machine room can be eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0007] Figure 1a —— Figure 1f The schematic diagrams of the structures of several ray radiation devices are shown;

[0008] Figure 2a —— Figure 2g Schematic diagram of the structure of a radiotherapy device with a non-enclosed shielding chamber in an embodiment of the present application

[0009] Figure 3a —— Figure 3gIt is a structural schematic diagram of a radiotherapy device with a closed shielding chamber in an embodiment of the present application;

[0010] Figure 4 A schematic diagram of another radiotherapy device according to an embodiment of the present application;

[0011] Figure 5 for Figure 4 A top view of

[0012] Figure 6 A schematic diagram of another radiotherapy device according to an embodiment of the present application;

[0013] Figure 7 This is a schematic diagram of a shielding compartment and a shielding layer being coupled via an adaption structure according to an embodiment of the present application;

[0014] Figure 8 This is a schematic diagram of coupling the shielding compartment and the shielding layer through an intermediate connector according to an embodiment of the present application;

[0015] Fig. 9 This is a schematic diagram of the structure of the intermediate connector in the embodiment of the present application;

[0016] Fig.10 This is a schematic diagram of the structure of a shielding compartment formed by splicing shielding shell segments in an embodiment of the present application;

[0017] Figures 11a-11f A schematic diagram of a shielding compartment formed by splicing different shielding shell segments in an embodiment of the present application;

[0018] Fig.12 A schematic diagram of a plurality of shielding shell segments being spliced ​​together through an adapting structure according to an embodiment of the present application;

[0019] Fig.13 This is a schematic diagram of the structure of a radiotherapy device according to Embodiment 1 of the present application;

[0020] Fig.14 A schematic diagram of another radiotherapy device according to an embodiment of the present application;

[0021] Fig.15 This is a schematic diagram of a patient entrance in an embodiment of the present application;

[0022] Figure 16a-16b This is a schematic diagram of a suspension roller structure in an embodiment of the present application;

[0023] Fig.17 This is a schematic diagram of the structure of the operating port in the embodiment of the present application;

[0024] Fig.18 This is a schematic diagram of the isolation chamber structure in the embodiment of the present application;

[0025] Fig.19This is a schematic diagram of the isolation chamber structure in the embodiment of the present application;

[0026] Fig. 20 A schematic diagram of a revolving door structure in an embodiment of the present application;

[0027] Fig.21 This is a schematic diagram of the structure of the fresh air system in the embodiment of the present application;

[0028] Fig. 22 This is a schematic diagram of the structure of the radiotherapy equipment in the embodiment of the present application;

[0029] Fig.23 This is a schematic diagram of the structure of the treatment head moving along the arc guide rail in the embodiment of the present application;

[0030] Fig.24 This is a schematic diagram of the coordinated motion structure of the treatment head and the arc guide rail in the embodiment of the present application;

[0031] Fig.25 This is a schematic diagram of a structure in which multiple radiation sources are evenly distributed on a source carrier of a radiation source device according to an embodiment of the present application;

[0032] Fig.26 This is a schematic diagram of a structure in which multiple radiation sources are centrally arranged in a source carrier of a radiation source device in an embodiment of the present application;

[0033] Fig. 27 This is a schematic diagram of the structure of an optical monitoring system installed on a treatment bed in an embodiment of the present application.

[0034] 1. Rack; 11. Treatment cavity; 111. Opening; 112. Closed end; 12. Source carrier; 121. Radiation source; 13. Collimator; 131. Collimator hole; 14. Shielding layer; 15. Entrance; 16. Treatment head; 171. Arc guide rail; 173. Slider; 172. Arc rack; 181. Driving device; 182. Gear; 2. Treatment bed; 21. Moving bed body; 22. Base; 3. Shielding chamber; 31. First shielding chamber; 32. Second shielding chamber; 33. First groove; 34. Second groove; 4. Intermediate connecting piece; 3', shielding shell segment; 5. Patient entrance; 51. First top roller; 52. First bottom slide rail; 53. First hand crank; 6. Operation port; 7. Isolation chamber; 71. Hollow cavity; 72. Outer door; 73. Third hand crank; 8. Optical monitoring system. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the embodiments of the present application should fall within the scope of protection of the embodiments of the present application.

[0036] Radiation equipment, such as radiotherapy equipment, is used in tumor treatment. Since radiation equipment needs to kill tumor cells by emitting radiation rays to treat patients, it is usually necessary to place the radiation equipment in a dedicated machine room with radiation shielding capabilities to avoid radiation rays from causing harm to the operator or other personnel. However, the construction period and cost of a dedicated machine room limit the widespread application of radiation equipment.

[0037] The following uses radiotherapy equipment as an example to illustrate the ray radiation equipment of the present application, but this is not intended to be a limitation of the present application.

[0038] See also Figure 1a —— Figure 1f Schematic diagram showing several types of radiation equipment, Figure 1a A schematic diagram of a radiotherapy device with a robotic arm gantry; Figure 1b FIG1 is a schematic diagram of a radiotherapy device with a C-arm gantry; FIG1c is a schematic diagram of a radiotherapy device with a cylindrical gantry; Figure 1d is a schematic diagram of a CT machine; Figure 1e is a schematic diagram of a DR machine; Figure 1f Schematic diagram of a radiotherapy device with a hemispherical gantry.

[0039] The ray irradiation device generally includes a frame 1, a radiation source (not shown in the figure) mounted on the frame 1, and a treatment bed 2 for carrying a patient. The radiation emitted by the radiation source irradiates the patient to complete diagnosis or treatment. In order to avoid physical damage to the operator and other personnel caused by the radiation during diagnosis or treatment, the ray irradiation device is usually placed in a special machine room to complete diagnosis or treatment.

[0040] To this end, an embodiment of the present application provides a shielding device, including: at least one shielding shell segment, wherein the at least one shielding shell segment constitutes a shielding chamber 3, and the shielding chamber 3 is arranged at the periphery of the radiation radiation equipment and shields the radiation generated by the radiation radiation equipment.

[0041] The embodiment of the present application arranges a shielding chamber on the periphery of the radiation radiation equipment and utilizes the shielding chamber to at least partially shield the scattered radiation generated by the radiation radiation equipment. Therefore, it is possible to reduce the radiation shielding requirements of the radiation radiation equipment on a dedicated machine room or get rid of the radiation radiation equipment's dependence on a dedicated machine room.

[0042] In a specific implementation of the present application, the shielding chamber is a closed body or a non-closed body.

[0043] In an embodiment of the present application, the treatment bed 2 includes a moving bed body 21 and a supporting base 22 , and the shielding chamber 3 surrounds the moving bed body 21 and the supporting base 22 , and is disposed at the periphery of the ray irradiation device.

[0044] The embodiment of the present application encloses the moving bed body and the supporting base in a shielding chamber, thereby at least shielding the scattered rays of the radiation radiation equipment on one side of the treatment bed. Therefore, it is possible to reduce the radiation shielding requirements of the radiation radiation equipment for a dedicated machine room or free the radiation radiation equipment from dependence on a dedicated machine room.

[0045] In addition, since the moving bed body and the supporting base of the treatment bed are both covered in the shielding chamber, the space available for patients in the entire shielding chamber is increased, which helps to alleviate the patient's claustrophobia symptoms.

[0046] In one embodiment of the present application, the shielding chamber surrounds the frame 1 and the treatment bed 2 and is disposed at the periphery of the radiation radiation device to form a non-enclosed body to shield the radiation generated by the radiation radiation device.

[0047] The treatment bed 2 includes a moving bed body 21 and a supporting base 22 .

[0048] Specifically, the shielding chamber 3 described in the embodiment of the present application is covered on the periphery of the frame 1 of the radiation radiation equipment and the treatment bed 2 thereof to form a non-enclosed body to shield the radiation generated by the radiation radiation equipment.

[0049] like Figure 2a —— Figure 2g As shown, the shielding chamber 3 can surround the moving bed body 21, the supporting base 22 and the frame 1 of the treatment bed 2 from the front side (i.e., the treatment bed side), the left side and the right side of the radiation radiation equipment, and the rear side of the radiation radiation equipment is open. The shielding chamber 3 is used to shield the radiation rays scattered from the front side, the left side and the right side of the frame.

[0050] Although the shielding chamber in the embodiment of the present application does not shield the radiation rays scattered from the rear side of the rack, it at least reduces the requirements of the radiation radiation equipment for the computer room. It only needs to carry out radiation shielding modification on the wall opposite to the rear side of the radiation radiation equipment to achieve shielding of the scattered radiation of the radiation equipment, thereby shortening the construction period of the computer room and reducing the cost of computer room construction.

[0051] In addition, since the moving bed body 21 and the supporting base 22 of the treatment bed 2 are both covered in the shielding chamber 3, the space for the patient to use in the entire shielding chamber 3 is increased, which helps to alleviate the patient's claustrophobia symptoms.

[0052] The embodiment of the present application does not limit the form of the non-enclosed shielding chamber. The non-enclosed shielding chamber can also be set to be open at the front, or open at the back, or open at the left side. The embodiment of the present application does not limit this.

[0053] In one embodiment of the present application, the shielding chamber cover surrounds the frame 1 and the treatment bed 2 and is disposed at the periphery of the radiation radiation device to form a closed body to shield the radiation generated by the radiation radiation device.

[0054] The treatment bed 2 includes a moving bed body and a supporting base.

[0055] like Figure 3a-3g As shown, the shielding chamber 3 completely covers the frame 1, the moving bed 21 and the supporting base 22, that is, the shielding chamber 3 surrounds the radiation irradiation equipment to form a closed body. The shielding chamber 3 can shield the radiation rays scattered from the front, left, rear and right sides of the radiation irradiation equipment.

[0056] In the embodiment of the present application, a closed shielding chamber is arranged around the radiation radiation equipment to form self-shielding of the radiation radiation equipment, thereby eliminating the need for a dedicated machine room. The self-shielding radiation radiation equipment can be placed at any location, expanding the application scenarios of the radiation radiation equipment.

[0057] In addition, since the moving bed body 21 and the supporting base 22 of the treatment bed 2 are both covered in the shielding chamber 3, the space for the patient to use in the entire shielding chamber 3 is increased, which helps to alleviate the patient's claustrophobia symptoms.

[0058] In the embodiment of the present application, a shielding layer is arranged on the outside of the rack, and the shielding compartment has at least one entrance, and the entrance is a third openable and closable shielding door. The third openable and closable shielding door is arranged at a position where the shielding compartment is opposite to the shielding layer of the rack, and the opening size of the third openable and closable shielding door is smaller than the size of the shielding layer of the rack in the axial direction of the rack.

[0059] like Figure 4 , 5As shown, a shielding layer 14 is arranged outside the frame 1, and the shielding layer 14 is equal to the width of the frame 1 in the frame axis direction, and is used to shield the radiation rays scattered from the left side, right side and top of the frame 1. The shielding chamber 3 completely covers the frame 1, the moving bed body 21 and the supporting base 22. The shielding chamber 3 has an entrance 15, which is a third openable and closable shielding door. The third openable and closable shielding door is arranged on the side wall of the shielding chamber 3, facing the shielding layer 14 of the frame. The opening size A of the third openable and closable shielding door (that is, the size of the third openable and closable shielding door along the axial direction of the frame) is smaller than the size B of the shielding layer 14 of the frame in the axial direction of the frame, so that when the third openable and closable shielding door is opened, the radiation rays at the opening are shielded by the shielding layer 14 of the frame, and the radiation rays in the shielding chamber 3 will not leak from the opening of the third openable and closable shielding door.

[0060] The interface between the third openable shielding door and the shielding chamber 3 is a non-straight splicing interface to ensure that radiation rays will not leak from the interface between the shielding door and the shielding chamber. The non-straight splicing interface F can be a V-shaped surface, or a curved surface, an S-surface, or a stepped surface. The embodiment of the present application is not limited to the above non-straight splicing interface, and other non-straight splicing interfaces can also be used to implement it.

[0061] In one embodiment of the present application, the radiation radiation equipment also includes a frame, which is configured to carry a radiation source, a shielding layer is arranged on the outside of the frame, and the shielding chamber is coupled to the shielding layer to form a closed body or a non-closed body to shield the radiation generated by the radiation radiation equipment.

[0062] like Figure 6 As shown, a shielding layer 14 is provided on the outside of the frame 1 for wrapping around the frame 1, thereby shielding radiation rays scattered from the left side, right side and top of the frame 1; the shielding chamber 3 is provided around the treatment bed 2, and the moving bed body 21 and the supporting base 22 of the treatment bed 2 are covered therein; the shielding chamber 3 is coupled with the shielding layer 14 (coupling refers to direct connection or indirect connection) to form a non-enclosed body, so that the rear end of the frame is open, and the radiation rays scattered from the front side, left side and right side of the ray irradiation device are shielded.

[0063] The embodiment of the present application shields the rays scattered from the front, left and right sides of the rack through a combination of a shielding compartment and a shielding layer, thereby reducing the shielding requirements of the ray radiation equipment for a dedicated machine room.

[0064] like Fig.13As shown, a shielding layer 14 is provided on the outside of the frame 1 for wrapping around the frame 1, thereby shielding radiation rays scattered from the left side, right side and top of the frame 1. The shielding chambers 3 (31, 32) are provided on the front and rear sides of the frame. The moving bed body 21 and the supporting base 22 of the treatment bed 2 are covered by the shielding chamber 31 on the front side of the frame 1, and the rear end of the frame 1 is closed by the shielding chamber 32 on the rear side of the frame 1. The front and rear shielding chambers 3 are coupled with the shielding layer 14 (coupling refers to direct connection or indirect connection) to form a closed body to shield the radiation rays scattered from the radiation irradiation device.

[0065] like Fig.14 As shown, a shielding layer 14 is arranged on the outside of a source body 12 of a radiation source device (i.e., a frame), which is used to surround the source body 12, thereby shielding radiation rays scattered from the left side, right side, rear side, and top of the radiation source device. The shielding chamber 3 is arranged around the treatment bed 2, and the moving bed body 21 and the base 22 of the treatment bed 2 are covered therein. The shielding chamber 3 is coupled with the shielding layer 14 (coupling refers to direct connection or indirect connection) to form a closed body, thereby shielding radiation rays scattered from the radiotherapy equipment.

[0066] The embodiment of the present application forms a closed shielding chamber through the combination of a shielding chamber and a shielding layer, thereby forming self-shielding for the radiation radiation equipment, thereby eliminating the need for a dedicated machine room. The self-shielding radiation radiation equipment can be placed at any location, expanding the application scenarios of the radiation radiation equipment.

[0067] In the embodiment of the present application, the shielding chamber 3 is detachably coupled to the shielding layer 14, or the shielding chamber 3 is integrally formed with the shielding layer 14. That is, the shielding chamber 3 can be separated from the frame 1 and installed as an accessory of the radiation irradiation device according to the needs of the user; or, the shielding chamber 3 can be integrally formed with the frame 1 as an inherent component of the radiation irradiation device.

[0068] In the embodiment of the present application, the shielding compartment is adaptively connected to the shielding layer through an adapting structure to achieve coupling.

[0069] like Figure 7 As shown, the shielding compartment 3 is connected to the shielding layer 14 through a non-straight splicing interface F, and the adaption structure is a non-straight splicing interface F. Figure 7As shown, the non-straight surface splicing interface F can be a stepped surface, or a curved surface, an S-surface, a V-shaped surface, etc. The embodiment of the present application is not limited to the above-mentioned non-straight surface splicing interface, and other non-straight surface splicing interfaces can also be used to implement it. The non-straight surface splicing interface described in the embodiment of the present application can adopt the same interface form to achieve adaptive connection, or can adopt different interface methods to achieve adaptive connection. The embodiment of the present application realizes the connection between the shielding chamber and the shielding layer through a non-straight surface splicing interface to ensure that no radiation leakage occurs from the interface between the shielding chamber and the shielding layer.

[0070] In the embodiment of the present application, the shielding compartment is connected to the shielding layer through an intermediate connector to achieve coupling. The intermediate connector serves as a bridge connecting the shielding compartment and the shielding layer, and the shielding compartment and the shielding layer are connected through the intermediate connector.

[0071] like Figure 8 As shown, the intermediate connector 4 is adapted to be connected with the shielding chamber 3 through an adapting structure; or, the intermediate connector 4 is adapted to be connected with the shielding layer 14 through an adapting structure; or, the intermediate connector 4 is adapted to be connected with the shielding chamber 3 and the shielding layer 14 through an adapting structure. In the embodiment of the present application, the shielding chamber 3 and the shielding layer 14 are connected by using the intermediate connector 4 to overcome the mismatch between the shielding chamber 3 and the shielding layer 14 and improve the versatility of the shielding chamber. The adapting structure is a non-straight splicing interface F, such as Fig. 9 As shown, the non-straight surface splicing interface F is an S surface, and may also be a curved surface, a stepped surface, a V-shaped surface, etc. The embodiment of the present application is not limited to the above-mentioned non-straight surface splicing interface, and other non-straight surface splicing interfaces may also be used to implement it, as long as it can ensure that there is no leakage of rays at the interface. The non-straight surface splicing interface described in the embodiment of the present application may use the same interface form to achieve adaptive connection, or may use different interface methods to achieve adaptive connection.

[0072] In one embodiment of the present application, the shielding chamber 3 includes a shielding shell segment, that is, the shielding shell segment is integrally formed, and the shielding chamber can be formed without splicing the shielding shell segments.

[0073] In one embodiment of the present application, Fig.10 As shown, the shielding chamber 3 includes a plurality of shielding shell segments 3'. The embodiment of the present application can realize that the shielding chamber 3 is composed of a plurality of shielding shell segments 3', making the transportation of the shielding chamber 3 more convenient.

[0074] In the embodiment of the present application, the plurality of shielding shell segments 3' are detachably spliced ​​to form the shielding chamber 3. The embodiment of the present application realizes the assembly of the plurality of shielding shell segments 3' by detachable splicing, making the installation of the shielding chamber 3 simpler and the use of the shielding chamber 3 more diversified and flexible.

[0075] At the same time, a plurality of detachable shielding shell segments 3' are used to form the shielding chamber 3, and the shape and occupied space of the shielding chamber can be adjusted according to the installation site and the treatment requirements of the radiation radiation equipment. Figure 11a-Figure 11b In the embodiment of the present application, if the shape of the shielding compartment 3 needs to be changed, it can be achieved by simply increasing or decreasing the number of the shielding shell segments 3'. Figure 11c-11d In the embodiment of the present application, if it is necessary to expand or reduce the occupied space of the shielding compartment 3, this can be achieved by simply increasing or reducing the number of the shielding shell segments 3'.

[0076] See also Figures 11e-11f The embodiment of the present application can also adjust the shape and occupied space of the shielding compartment by adding or reducing shielding shell segments 3' of different sizes or shapes from the original shielding shell segments.

[0077] In order to prevent the radiation in the shielding chamber from leaking through the gaps between the plurality of shielding shell segments, Fig.12 As shown, the interfaces of the plurality of shielding shell segments are non-straight-surface splicing interfaces F.

[0078] Specifically, see Fig.12 The non-straight surface splicing interfaces F of the plurality of shielding shell segments 3' may be curved surfaces, or may be S-surfaces, stepped surfaces, V-shaped surfaces, etc.

[0079] The interfaces described in the embodiments of the present application may be the same interface or different interfaces.

[0080] The embodiments of the present application are not limited to the above-mentioned interfaces, and other non-straight-surface splicing interfaces may also be used to implement the embodiments, as long as it is possible to ensure that no radiation is leaked at the interfaces.

[0081] The shielding chamber described in the embodiment of the present application is made of metal materials with shielding properties such as steel, lead, and tungsten.

[0082] In one embodiment of the present application, see Fig.15 The shielding chamber has at least one patient entrance 5, and the patient entrance 5 is used for patients to enter and exit the shielding chamber 3.

[0083] The number of the patient entrances 5 may be one or more, and the patient entrances 5 may be arranged on the same side or different sides of the shielding cabin 3 .

[0084] The embodiment of the present application is not limited to the patient entrance 5. The patient may also enter the shielding chamber in other ways, such as entering the shielding chamber when the shielding shell segments have not yet been spliced, or entering the shielding chamber through a tunnel at the location where the radiotherapy equipment is installed.

[0085] Specifically, the patient entrance 5 is a first openable and closable shielding door, that is, the patient enters and exits by opening the first openable and closable shielding door, and the radiation shielding is achieved by closing the first openable and closable shielding door.

[0086] The first openable and closable shielding door is arranged at a position of the shielding chamber 3 close to the treatment bed 2, so as to facilitate the patient to reach the treatment bed 2 as soon as possible.

[0087] The first openable and closable shielding door is arranged on the side or the rear end of the treatment bed 2. The first openable and closable shielding door is arranged on the side of the treatment bed 2 to facilitate the patient to get on and off the treatment bed 2. The first openable and closable shielding door is arranged at the rear end of the treatment bed 2, which is convenient for emergency manual pulling of the treatment bed 2, so that the treatment bed 2 can quickly pass through the first openable and closable shielding door and be dragged out of the shielding chamber.

[0088] In order to realize the opening and closing operation of the first openable and closable shielding door, the first openable and closable shielding door is opened electrically and / or manually.

[0089] The embodiment of the present application may also use a combination of electric and manual methods to achieve the opening and closing operation of the first openable and closable shielding door.

[0090] For example, the first openable and closable shielding door is opened and closed electrically. When a fault occurs or the radiotherapy equipment needs to be operated in an emergency, the first openable and closable shielding door is opened and closed manually.

[0091] Specifically, the first openable and closable shielding door is one of a sliding door, a rolling door, and a side-opening door.

[0092] When there are a plurality of the first openable and closable shielding doors, they may be different doors or the same doors.

[0093] In the embodiment of the present application, the first openable and closable shielding door can select the form of the door and the direction of opening and closing of the door according to the installation location of the radiotherapy equipment and the use status of the radiotherapy equipment.

[0094] If the installation location of the radiotherapy equipment is close to a wall, a rolling door or a sliding door is selected as the first openable and closable shielding door.

[0095] If the internal space of the shielding chamber where the radiotherapy equipment is installed is limited, a rolling door or a sliding door is selected as the first openable and closable shielding door, or a side-opening door that opens outwards is selected.

[0096] The first openable and closable shielding door is a sliding door, and the manual opening is achieved by manually operating a guide or rolling structure (i.e., manually pushing and pulling the first openable and closable shielding door with the help of the guide or roller structure to achieve the opening and closing of the first openable and closable shielding door) or by hand-cranking (i.e., driving the transmission system of the first openable and closable shielding door by hand-cranking to further drive the first openable and closable shielding door to achieve its opening and closing).

[0097] In order to achieve better opening and closing operation, reduce friction and increase the smoothness of opening and closing, the guide or rolling structure is a suspended roller structure.

[0098] See also Fig.16a , 16b The suspension roller structure includes a first top roller 51 at the top of the shielding door 5' and a first bottom slide rail 52 at the bottom of the shielding door 5', the first top roller 51 is located in the first groove 33 in the shielding chamber 3, and the first bottom slide rail 52 is located in the second groove 34 of the shielding chamber 3 or the ground. The shielding door 5' is opened and closed by the left-right relative movement with the shielding chamber 3 through the first top roller 51 and the first bottom slide rail 52.

[0099] The embodiment of the present application realizes opening or closing of the first openable and closable shielding door through the first top roller 51 and the first bottom slide rail 52 at the bottom of the shielding door 5', so that the first openable and closable shielding door can be opened and closed smoothly, and the suspension roller structure is easy to maintain and use.

[0100] See also Fig.16b The manual driving method is to perform manual operation through a first hand crank handle coupled (directly or indirectly connected) to the first openable and closable shielding door, and send the driving force generated by the manual operation to the first openable and closable shielding door to control the opening and closing of the first openable and closable shielding door.

[0101] In the embodiment of the present application, the opening and closing speed of the first openable and closable shielding door can be controlled by the force and speed of hand cranking, so that when the first openable and closable shielding door fails or the radiotherapy equipment fails and emergency operation of opening or closing the first openable and closable shielding door is required, the opening and closing operation of the first openable and closable shielding door can be quickly achieved by hand cranking.

[0102] The embodiment of the present application does not limit the installation position of the first hand crank 53, as long as the driving force generated by the hand crank operation can be sent to the first openable and closable shielding door to control its opening and closing.

[0103] The interface between the first openable and closable shielding door and the shielding compartment is a non-straight splicing interface.

[0104] In order to prevent the radiation in the shielding chamber from leaking through the gap between the first openable and closeable shielding door and the shielding chamber, the interface between the first openable and closeable shielding door and the shielding chamber is a non-straight surface splicing interface. Specifically, the interface between the first openable and closeable shielding door and the shielding chamber is one of a curved surface, an S-surface, a stepped surface, and a V-shaped surface.

[0105] The interfaces described in the embodiments of the present application may be the same interfaces or different interfaces. The embodiments of the present application are not limited to the above interfaces, and other non-straight-surface splicing interfaces may also be used to implement, as long as it can ensure that the interface does not leak radiation.

[0106] In one embodiment of the present application, see Fig.17 The shielding chamber 3 has at least one operating port 6, and the operating port 6 is used for an operator to enter and exit the shielding chamber.

[0107] The operation port 6 in the embodiment of the present application may exist together with the patient entrance 5 in the shielding chamber 3 . The embodiment of the present application may also only have the patient entrance 5 , or only have the operation port 6 .

[0108] The operating opening 6 is a second openable and closable shielding door.

[0109] That is, the operator can enter and exit by opening the second openable and closable shielding door, and radiation shielding can be achieved by closing the second openable and closable shielding door.

[0110] In an embodiment of the present application, the second openable and closable shielding door is arranged at a position close to the radiation source, so that an operator can enter the shielding cabin to open or close or perform maintenance on the radiation source.

[0111] In order to realize the opening and closing operation of the second openable and closable shielding door, the second openable and closable shielding door is opened electrically and / or manually.

[0112] The embodiment of the present application may also use a combination of electric and manual methods to achieve the opening and closing operation of the second openable and closable shielding door.

[0113] For example, the second openable and closable shielding door is opened and closed electrically. When a fault occurs or the radiotherapy equipment needs to be operated in an emergency, the second openable and closable shielding door is opened and closed manually.

[0114] Specifically, the second openable and closable shielding door is one of a sliding door, a rolling door, and a side-opening door.

[0115] When there are a plurality of the second openable and closable shielding doors, they may be different doors or the same doors.

[0116] In the embodiment of the present application, the second openable and closable shielding door can select the form of the door and the direction of opening and closing of the door according to the installation location of the radiotherapy equipment and the use status of the radiotherapy equipment.

[0117] For example, if the radiotherapy equipment needs to be installed close to a wall, a rolling door or a sliding door is selected as the second openable and closable shielding door.

[0118] For example, if the internal space of the shielding chamber where the radiotherapy equipment is installed is limited, a rolling door or a sliding door is selected as the second openable and closable shielding door, or a side door that opens outwards is selected.

[0119] Specifically, the second openable and closable shielding door adopts a sliding door, and the manual opening is achieved by manually operating a guide or rolling structure (that is, manually pushing and pulling the second openable and closable shielding door with the help of the guide or roller structure to achieve the opening and closing of the second openable and closable shielding door) or by hand-cranking (that is, driving the transmission system of the second openable and closable shielding door by hand-cranking to further drive the second openable and closable shielding door to achieve its opening and closing).

[0120] In order to achieve better opening and closing operation, reduce friction and increase the smoothness of opening and closing, the guide or rolling structure is a suspended roller structure.

[0121] Similar to the first openable and closable shielding door, the suspension roller structure adopted by the second openable and closable shielding door includes a second top roller at the top of the second openable and closable shielding door and a second bottom slide rail at the bottom of the second openable and closable shielding door, the second top roller is located in the third groove in the shielding bin, the second bottom slide rail is located in the fourth groove of the shielding bin or the ground, and the second openable and closable shielding door is opened and closed by the second top roller and the second bottom slide rail to achieve left-right relative movement with the shielding bin.

[0122] The embodiment of the present application realizes opening or closing of the second openable and closable shielding door through the second top roller and the second bottom slide rail at the bottom of the shielding door, which can realize smooth opening and closing of the second openable and closable shielding door, and the suspension roller structure is easy to maintain and use.

[0123] The manual driving method is to perform manual operation through a second hand crank handle coupled (directly or indirectly connected) to the second openable and closable shielding door, and send the driving force generated by the manual operation to the second openable and closable shielding door to control the opening and closing of the second openable and closable shielding door.

[0124] In the embodiment of the present application, the opening and closing speed of the second openable and closable shielding door can be controlled by the force and speed of hand cranking. When the second openable and closable shielding door fails or the radiotherapy equipment fails and emergency operation of opening or closing the second openable and closable shielding door is required, the opening and closing operation of the second openable and closable shielding door can be quickly achieved by hand cranking.

[0125] The embodiment of the present application does not limit the installation position of the second hand crank, as long as the driving force generated by the hand crank operation can be sent to the second openable and closable shielding door to control its opening and closing.

[0126] The interface between the second openable and closable shielding door and the shielding compartment is a non-straight splicing interface.

[0127] In order to prevent the radiation in the shielding chamber from leaking through the gap between the second openable shielding door and the shielding chamber, the interface between the second openable shielding door and the shielding chamber is a non-straight surface splicing interface. Specifically, the interface between the second openable shielding door and the shielding chamber is one of a curved surface, an S-surface, a stepped surface, and a V-shaped surface.

[0128] The interfaces described in the embodiments of the present application may be the same interfaces or different interfaces. The embodiments of the present application are not limited to the above interfaces, and other non-straight-surface splicing interfaces may also be used to implement, as long as it can ensure that the interface does not leak radiation.

[0129] In one embodiment of the present application, in order to further avoid leakage of radiation rays when the first openable and closeable shielding door or the second openable and closeable shielding door is opened, the first openable and closeable shielding door and / or the second openable and closeable shielding door has an isolation chamber 7, and the isolation chamber 7 isolates the leaked rays when the first openable and closeable shielding door or the second openable and closeable shielding door is opened.

[0130] In the embodiment of the present application, the radiation rays leaked when the first openable and closable shielding door or the second openable and closable shielding door is opened are isolated by the isolation chamber 7, thereby achieving a better radiation shielding effect.

[0131] Specifically, the isolation chamber 7 can be for any first openable and closable shielding door and the second openable and closable shielding door, such as a sliding door, a rolling door, and a side-opening door. The isolation chamber 7 can be set corresponding to the first openable and closable shielding door and / or the second openable and closable shielding door, that is, the first openable and closable shielding door and the second openable and closable shielding door are separately provided with corresponding isolation chambers 7, or one isolation chamber 7 can be configured for the first openable and closable shielding door and the second openable and closable shielding door.

[0132] like Fig.18As shown, the isolation chamber 7 is arranged on the outer side of the first openable and closable shielding door and the second openable and closable shielding door in the shielding chamber 3, so as to shield the leakage rays when the first openable and closable shielding door or the second openable and closable shielding door is opened, but the isolation chamber 7 is not limited to being arranged on the outer side of the first openable and closable shielding door and the second openable and closable shielding door, and can also be arranged in other positions, such as the inner side of the first openable and closable shielding door and the second openable and closable shielding door.

[0133] See also Fig.18 The isolation chamber 7 includes a hollow cavity 71 arranged on the outside of the first openable and closable shielding door and the second openable and closable shielding door. Before the first openable and closable shielding door or the second openable and closable shielding door is opened, the operator enters the hollow cavity 71 and waits for the opening of the first openable and closable shielding door or the second openable and closable shielding door. When the first openable and closable shielding door or the second openable and closable shielding door is opened, the operator quickly enters the shielding chamber 3. When the first openable and closable shielding door or the second openable and closable shielding door is opened, the radiation rays leaked through the opening of the first openable and closable shielding door or the second openable and closable shielding door are shielded by the chamber wall of the isolation chamber 7.

[0134] The hollow cavity 71 described in the embodiment of the present application may be a closed cavity or a non-closed cavity.

[0135] like Fig.19 As shown, in order to further isolate the leaked radiation when the first openable and closable shielding door or the second openable and closable shielding door is opened, the isolation chamber 7 also includes an outer door 72 entering the hollow cavity 71.

[0136] The outer door 72 may be a sliding door, a rolling door, or a side-opening door. The outer door may be one or more, or may be a plurality of different doors, which only need to isolate the radiation leakage when the first and second openable and closeable shielding doors are opened.

[0137] In order to realize the opening and closing operation of the outer door, the outer door is opened electrically or manually.

[0138] The embodiment of the present application can also use a combination of electric and manual methods to achieve the opening and closing operation of the outer door.

[0139] For example, the outer door is opened and closed electrically, and when a fault occurs or the radiotherapy equipment needs to be operated in an emergency, the outer door is opened and closed manually.

[0140] See also Fig. 20In one embodiment of the present application, the first openable and closeable shielding door and / or the second openable and closeable shielding door is a revolving door, and the revolving door has an isolation chamber 7. The first openable and closeable shielding door and / or the second openable and closeable shielding door uses the isolation chamber 7 in the revolving door to shield the leaked rays when the operator enters the shielding chamber 3.

[0141] The revolving door is opened electrically or manually.

[0142] The embodiment of the present application can also use a combination of electric and manual methods to achieve the opening and closing operation of the revolving door.

[0143] For example, the revolving door is electrically operated to open and close, and when a failure occurs or the radiotherapy equipment needs to be operated in an emergency, the revolving door is manually operated to open and close.

[0144] See also Fig. 20 The hand-crank driving method is to perform a hand-crank operation through a third hand crank handle 73 coupled (directly or indirectly connected) to the revolving door, and send the driving force generated by the hand-crank operation to the revolving door to control the opening and closing of the revolving door.

[0145] In the embodiment of the present application, the opening and closing speed of the revolving door can be controlled by the force and speed of hand cranking. When the revolving door fails or the radiotherapy equipment fails and emergency operation of opening or closing the revolving door is required, the revolving door can be quickly opened or closed by hand cranking.

[0146] The embodiment of the present application does not limit the installation position of the third hand crank 73, as long as the driving force generated by the hand cranking operation can be sent to the revolving door to control its opening and closing.

[0147] The interface between the revolving door and the shielding compartment is a non-straight splicing interface.

[0148] In order to prevent the radiation in the shielding chamber from leaking through the gap between the revolving door and the shielding chamber, the interface between the revolving door and the shielding chamber is a non-straight surface splicing interface. Specifically, the interface between the revolving door and the shielding chamber is one of a curved surface, an S-surface, a stepped surface, and a V-shaped surface.

[0149] The interfaces described in the embodiments of the present application may be the same interfaces or different interfaces. The embodiments of the present application are not limited to the above interfaces, and other non-straight-surface splicing interfaces may also be used to implement the embodiments, as long as the interfaces are guaranteed not to leak radiation.

[0150] In one embodiment of the present application, a display and / or playback device is provided in the shielding chamber and / or the rack, and the display and / or playback device plays content data according to patient preferences or user instructions.

[0151] Specifically, the patient preference can be obtained according to patient information or selected by the patient according to a user instruction, and the content data includes at least one of video content data, image content data, and sound content data. The content data played in the radiation irradiation device, such as in the shielding chamber or the rack, can give the patient during treatment a better viewing experience, thereby alleviating the patient's claustrophobia during treatment.

[0152] See also Fig.21 In one embodiment of the present application, a fresh air system is provided in the shielding chamber 3 .

[0153] The air outlet of the fresh air system is arranged on the side wall of the shielding chamber close to the ground, and the air inlet is arranged on the side wall of the shielding chamber close to the chamber top or on the top of the shielding chamber.

[0154] Specifically, the air outlet passes through the side wall along a preset oblique angle, and the air inlet passes through the side wall or the top of the shielding chamber along a preset oblique angle. The preset oblique angle direction is a direction that is angled with the irradiation direction of the ray, so as to prevent the ray from leaking along the air outlet and / or the air inlet. Exemplarily, the preset oblique angle is 45 degrees with the horizontal direction.

[0155] A protective wall may be provided outside the air outlet and / or the air inlet to block possible radiation leakage. The air inlet is far away from the air outlet. The distance between the air inlet and the air outlet allows air to flow in the shielding chamber, thereby achieving fresh air ventilation.

[0156] Specifically, the air inlet and the air outlet are arranged diagonally. The greater the distance between the air inlet and the air outlet, the more fully the air flows in the shielding chamber, and the better the fresh air ventilation effect achieved.

[0157] In the embodiment of the present application, the rack 1 of the radiation irradiation device is configured to carry multiple radiation sources 121, and the radiation emitted by the multiple radiation sources 121 is focused on a point O, which is called a focus. Usually, the focus is located on the central axis of the rack 1.

[0158] In the embodiment of the present application, the gantry rotates around its central axis. The embodiment of the present application uses a relatively small number of small-dose radiation sources to obtain continuous high-dose irradiation at the lesion through the rotation of the gantry, while the surrounding normal tissue is only exposed to a small amount of radiation, thereby minimizing the degree of damage caused by radiotherapy.

[0159] In one embodiment of the present application, the rack 1 is used to carry a treatment head, and the treatment head is configured to emit X-rays or gamma rays. For example, the treatment head is a medical electron accelerator treatment head for emitting X-rays; the treatment head is an integrated treatment head loaded with a cobalt 60 source for emitting gamma rays; or the treatment head is a source carrier loaded with a ray source, that is, the cobalt 60 source or the X-ray source is directly loaded on the circumferential surface of the rack for emitting gamma rays or X-rays.

[0160] In an embodiment of the present application, the treatment head is configured to rotate around the central axis of the gantry so that the treatment head emits treatment beams to the patient from various angles around the patient.

[0161] like Fig. 22 As shown, the treatment head 16 rotates around the central axis of the frame 1, which can be achieved by rotating the frame, or by providing a rotating track on the frame and driving the treatment head to move along the rotating track.

[0162] In one embodiment of the present application, the treatment head is configured to emit X-rays or gamma rays in a direction intersecting with a rotation plane, and the rotation plane is a plane perpendicular to the central axis of the rack. The present application embodiment can realize that the treatment head irradiates the patient from multiple directions intersecting with the rotation plane, and at the same time, combined with the rotational movement of the treatment head around the central axis of the rack, the treatment head can irradiate the patient from multiple planes intersecting with the rotation plane to achieve nearly 4π irradiation.

[0163] like Fig.23 , Fig.24 As shown, the treatment head 16 is connected to the frame 1 through an arc-shaped guide rail 171 arranged along the frame axis direction, the arc-shaped guide rail 171 is fixedly arranged on the frame 1 along the frame axis direction, the treatment head 16 is slidably connected to the arc-shaped guide rail 171 through a slider 173, the treatment head 16 is provided with an arc-shaped rack 172 extending along the frame axis direction, the frame 1 is provided with a driving device 181, and the output end of the driving device 181 is connected to a gear 182 meshing with the arc-shaped rack 172. The driving force of the driving device 181 is transmitted to the treatment head 16 through the gear 182, and then the treatment head 16 is driven to move along the arc-shaped guide rail 171, so that the treatment head 16 irradiates the patient from multiple directions intersecting with the rotation plane.

[0164] The treatment head is connected to the frame via a pivot, and the treatment head irradiates the patient from multiple directions intersecting with the rotation plane through the rotation of the pivot.

[0165] In one embodiment of the present application, an imaging system is arranged in the shielding chamber and / or in the rack. The imaging system comprises an X-ray generator and a detector arranged relatively to each other, and the rays emitted by the X-ray generator pass through the patient's body and are received by the detector to image the lesions and / or organs in the patient's body.

[0166] The imaging system may be arranged in the shielding chamber, or in the rack, or in both the shielding chamber and the rack. The radiotherapy equipment of the embodiment of the present application may be equipped with one or more sets of the above imaging systems. The embodiment of the present application does not limit the number of imaging systems arranged in the radiotherapy equipment.

[0167] In one embodiment of the present application, a slip ring is provided on the frame for transmitting power and / or signals up and down the frame. The slip ring includes a stator and a rotor, the rotor is coaxially connected to the end face of the cylindrical frame and can rotate with the cylindrical frame; the stator is fixed on the frame, the stator is connected to a power source and / or a signal source, and through the coupling between the stator and the rotor, power is provided to the rotating frame and signals are transmitted.

[0168] In another embodiment of the present application, the frame of the radiation radiation equipment is specifically a radiation source device 1, a treatment cavity 11 is formed in the radiation source device 1, one end of the radiation source device 1 has an opening 111 for the treatment bed 2 to enter and exit the treatment cavity, and the end of the treatment cavity 11 opposite to the opening 111 is a closed end 112.

[0169] The radiation source 121 loaded on the source carrier 12 of the radiation source device 1 is an X-ray source or a gamma-ray source, for example: a medical electron accelerator for emitting X-rays; a cobalt 60 source for emitting gamma-rays.

[0170] In one embodiment of the present application, the radiation source 121 loaded on the source carrier 12 of the radiation source device 1 is an X-ray source or a gamma-ray source, for example: a medical electron accelerator for emitting X-rays; a cobalt 60 source for emitting gamma-rays.

[0171] In the embodiment of the present application, the source carrier 12 of the radiation source device 1 is loaded with multiple radiation sources 121, and the rays emitted by the multiple radiation sources 121 are focused on a point O, which is called a focus. Usually, the focus is located on the central axis of the radiation source device 1.

[0172] In the embodiments of the present application, Fig.25 As shown, the plurality of radiation sources 121 include a plurality of radiation source groups 1211, such as Fig.25As shown, the multiple radiation sources 121 include 6 radiation source groups 1211, and the multiple radiation source groups 1211 are evenly distributed on the entire circumferential surface of the source carrier 12 of the radiation source device. The radiation sources 121 in each radiation source group 1211 are distributed in different latitude zones of the source carrier 12 of the radiation source device, so as to achieve focused irradiation of the patient from different directions.

[0173] In the embodiments of the present application, Fig.26 As shown, the multiple radiation sources 121 include multiple radiation source groups 1211, and the multiple radiation source groups 1211 are concentrated in a region Q on the circumferential surface of the source carrier 12 of the radiation source device. The radiation sources 121 in each radiation source group 1211 are distributed in different latitude zones of the source carrier 12 of the radiation source device, so as to achieve focused irradiation of the patient from different directions.

[0174] In the embodiment of the present application, the radiation source device rotates around its central axis 1. The embodiment of the present application uses a relatively small number of small-dose radiation sources through the rotational movement of the radiation source device to obtain continuous high-dose irradiation at the lesion, while the surrounding normal tissue is only exposed to a trace amount of radiation, thereby minimizing the degree of damage caused by radiotherapy.

[0175] In one embodiment of the present application, an imaging system is arranged in the shielding chamber and / or in the radiation source device. The imaging system comprises an X-ray generator and a detector arranged relatively to each other, and the rays emitted by the X-ray generator pass through the patient's body and are received by the detector to image the lesions and / or organs in the patient's body.

[0176] The imaging system may be arranged in the shielding chamber, or in the radiation source device, or in both the shielding chamber and the radiation source device. The radiotherapy equipment of the embodiment of the present application may be equipped with one or more sets of the above imaging systems. The embodiment of the present application does not limit the number of imaging systems arranged in the radiotherapy equipment.

[0177] In one embodiment of the present application, the radiotherapy equipment further includes an optical monitoring system, which can be used to monitor the movement of a patient located on a treatment bed. The optical monitoring system can be an infrared monitoring system.

[0178] The optical monitoring system may include a radiation generator, a radiation receiver and a marker. When in use, the marker is attached to the patient's body surface, and the radiation emitted by the radiation generator is reflected by the marker and received by the radiation receiver. The patient's movement is determined by the time when the reflected radiation is received.

[0179] The optical monitoring system may further include a radiation receiver and a marker. When in use, the marker is attached to the patient's body surface. The marker will autonomously emit radiation, which will be received by the radiation receiver. The patient's movement is determined by the time the radiation is received.

[0180] The optical monitoring system may further include a radiation emitter and a radiation receiver. When in use, the radiation emitted by the radiation generator is reflected by the patient's skin and received by the radiation receiver, so that the patient's movement is determined by the time when the reflected radiation is received.

[0181] The optical monitoring system may also include only a radiation receiver. When in use, the natural light reflected by the patient's skin is received by the radiation receiver, and the patient's movement is determined based on the time when the reflected radiation is received.

[0182] The optical monitoring system is arranged on the treatment bed, such as Fig. 27 As shown, the optical monitoring system 8 is arranged at the end of the treatment bed 2. The optical monitoring system can also be arranged at other positions of the radiotherapy equipment, for example, arranged at the upper part of the treatment bed and suspended on the top of the shielding cabin.

[0183] In the present application, the treatment bed may be a three-dimensional bed, that is, the treatment bed may move in the horizontal, vertical and lifting directions. Of course, the treatment bed may also be a four-dimensional bed, a five-dimensional bed, a six-dimensional bed, etc. The four-dimensional bed, the five-dimensional bed and the six-dimensional bed refer to the three-dimensional bed above, with the treatment bed being able to rotate or swing in the horizontal and / or vertical and / or lifting directions.

[0184] In the present application, the shielding chamber may be directly fixedly connected to the ground, or may be fixedly connected to the base of the radiotherapy equipment.

[0185] In the present application, the shielding chamber can be fixedly connected to the ground or the base of the radiotherapy equipment by means of anchor bolts, the shielding chamber and the shielding layer can be fixedly connected by bolts, and the shielding shell segments of the shielding chamber can be fixedly connected by bolts. Of course, other fixed connection methods can also be adopted to achieve the connection, such as: welding, bonding, screw and nut connection, etc. The present application does not limit the method for achieving fixed connection of the above-mentioned structures.

[0186] The present application also provides a radiotherapy device, which includes any of the shielding devices described above. Specifically, the radiotherapy device is an accelerator or a gamma knife radiotherapy device.

[0187] A1. A shielding device, characterized in that the shielding device comprises: at least one shielding shell segment, the at least one shielding shell segment constitutes a shielding chamber, the shielding chamber is arranged at the periphery of the radiation radiation equipment, and shields the radiation generated by the radiation radiation equipment.

[0188] A2. The shielding device according to claim A1 is characterized in that the radiation radiation equipment includes a frame and a treatment bed, the frame is configured to carry a radiation source, the treatment bed includes a moving bed body and a supporting base, and the shielding chamber surrounds the moving bed body and the supporting base and is arranged on the periphery of the radiation radiation equipment.

[0189] A3. The shielding device according to claim A2 is characterized in that the shielding chamber surrounds the frame and the treatment bed and is arranged on the periphery of the radiation radiation equipment to form a closed body to shield the radiation generated by the radiation radiation equipment.

[0190] A4. The shielding device according to claim A2 is characterized in that a shielding layer is arranged on the outside of the frame, and the shielding layer is coupled to the shielding chamber to shield the rays generated by the ray radiation equipment.

[0191] A5. The shielding device according to claim A4 is characterized in that the shielding compartment is detachably coupled to the shielding layer, or the shielding compartment and the shielding layer are integrally formed.

[0192] A6. The shielding device according to claim A5 is characterized in that the shielding compartment is adaptively connected to the shielding layer through an adapting structure.

[0193] A7. The shielding device according to claim A5 is characterized in that the shielding compartment is connected to the shielding layer through an intermediate connecting piece.

[0194] A8. The shielding device according to claim A7 is characterized in that the intermediate connecting piece is adaptively connected with the shielding compartment and / or the shielding layer through an adaptive structure.

[0195] A9. The shielding device according to claim A6 or A8 is characterized in that the adaptation structure is a non-straight splicing interface.

[0196] A10. The shielding device according to claim A1 is characterized in that the shielding compartment includes a plurality of shielding shell fragments.

[0197] A11. The shielding device according to claim A10 is characterized in that the multiple shielding shell fragments can be detachably spliced ​​to form the shielding compartment.

[0198] A12. The shielding device according to claim A11 is characterized in that the interfaces of the multiple shielding shell segments are non-straight splicing interfaces.

[0199] A13. The shielding device according to claim A1 is characterized in that the shielding chamber has at least one patient entrance, and the patient entrance is used for patients to enter and exit the shielding chamber.

[0200] A14. The shielding device according to claim A13 is characterized in that the patient entrance is a first openable and closable shielding door.

[0201] A15. The shielding device according to claim A14 is characterized in that the first openable and closable shielding door has an isolation chamber, and the isolation chamber is used to isolate the rays leaked when the first openable and closable shielding door is opened.

[0202] A16. The shielding device according to claim A1 is characterized in that the shielding chamber has at least one operating port for an operator to enter and exit the shielding chamber.

[0203] A17. The shielding device according to claim A16 is characterized in that the operating port is a second openable and closable shielding door.

[0204] A18. The shielding device according to claim A17 is characterized in that the second openable and closable shielding door has an isolation chamber, and the isolation chamber is used to isolate the rays leaked when the shielding door is opened.

[0205] A19. The shielding device according to claim A3 is characterized in that a shielding layer is arranged on the outside of the frame, the shielding compartment has at least one entrance, the entrance is a third openable and closable shielding door, the third openable and closable shielding door is arranged at a position of the shielding compartment directly opposite to the shielding layer, and the opening size of the third openable and closable shielding door is smaller than the size of the shielding layer in the axial direction of the radiation radiation equipment.

[0206] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A shielding device, characterized in that: The shielding device comprises: at least one shielding shell segment, the at least one shielding shell segment constitutes a shielding chamber, the shielding chamber is arranged at the periphery of the radiation radiation device, and shields the radiation generated by the radiation radiation device; The radiation radiation equipment includes a frame, which is configured to carry a radiation source; a shielding layer is arranged on the outside of the frame, and the shielding compartment has at least one entrance, which is a third openable and closable shielding door, and the third openable and closable shielding door is arranged at a position of the shielding compartment opposite to the shielding layer, and the opening size of the third openable and closable shielding door is smaller than the size of the shielding layer in the axial direction of the radiation radiation equipment.

2. The shielding device according to claim 1, characterized in that The ray irradiation device comprises a treatment bed, and the treatment bed comprises a moving bed body and a supporting base. The shielding chamber surrounds the moving bed body and the supporting base and is arranged at the periphery of the ray irradiation device.

3. The shielding device according to claim 2, characterized in that: The shielding chamber surrounds the frame and the treatment bed, is arranged at the periphery of the radiation irradiation device, forms a closed body, and shields the radiation generated by the radiation irradiation device.

4. The shielding device according to claim 2, characterized in that: The shielding layer is coupled to the shielding chamber to shield the radiation generated by the radiation irradiation device.

5. The shielding device according to claim 4, characterized in that: The shielding compartment is detachably coupled to the shielding layer, or the shielding compartment and the shielding layer are integrally formed.

6. The shielding device according to claim 5, characterized in that The shielding compartment is adaptively connected to the shielding layer via an adaptive structure.

7. The shielding device according to claim 5, characterized in that: The shielding compartment is connected to the shielding layer via an intermediate connecting piece.

8. The shielding device according to claim 7, characterized in that The intermediate connecting piece is adaptively connected to the shielding compartment and / or the shielding layer through an adaptive structure.

9. The shielding device according to claim 6 or 8, characterized in that: The adapting structure is a non-straight splicing interface.

10. The shielding device according to claim 1, characterized in that The shielding compartment includes a plurality of shielding shell segments.

11. The shielding device according to claim 10, characterized in that: The plurality of shielding shell segments can be detachably spliced ​​to form the shielding compartment.

12. The shielding device according to claim 11, characterized in that The interfaces of the plurality of shielding shell segments are non-straight-surface splicing interfaces.

13. The shielding device according to claim 1, characterized in that The shielding cabin has at least one patient entrance, and the patient entrance is used for patients to enter and exit the shielding cabin.

14. The shielding device according to claim 13, characterized in that The patient entrance is a first openable and closable shielding door.

15. The shielding device according to claim 14, characterized in that The first openable and closable shielding door has an isolation chamber, and the isolation chamber is used to isolate the radiation leaked when the first openable and closable shielding door is opened.

16. The shielding device according to claim 1, characterized in that The shielding chamber has at least one operating opening, and the operating opening is used for an operator to enter and exit the shielding chamber.

17. The shielding device according to claim 16, characterized in that The operating port is a second openable and closable shielding door.

18. The shielding device according to claim 17, characterized in that The second openable and closable shielding door has an isolation chamber, and the isolation chamber is used to isolate the radiation leaked when the second openable and closable shielding door is opened.

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