CN113546328A

CN113546328A - Shielding device

Info

Publication number: CN113546328A
Application number: CN202010340209.8A
Authority: CN
Inventors: 陈方正; 李大梁
Original assignee: Our United Corp
Current assignee: Our United Corp
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2021-10-26

Abstract

The embodiment of the application provides a shielding device, includes: the shielding bin is arranged at the periphery of the ray radiation equipment and shields rays generated by the ray radiation equipment. According to the embodiment of the application, the shielding bin is arranged on the periphery of the ray radiation equipment, and the shielding bin is used for at least partially shielding the scattered rays generated by the ray radiation equipment, so that the radiation shielding requirement of the ray radiation equipment on a special machine room can be reduced or the dependence of radiotherapy equipment on the special machine room can be eliminated.

Description

Shielding device

Technical Field

The application relates to the technical field of medical treatment, in particular to a shielding device.

Background

With the development of medical technology, radiation has become an important means in medical diagnosis and treatment, and radiation is emitted from a radiation source, and the radiation can penetrate through a human body from different angles to diagnose and treat a patient. Since the radiation diagnosis or treatment apparatus has radioactivity, the radiation may injure the operator or other personnel when performing the diagnosis or treatment, and therefore, in the existing facility for placing the radiation irradiation apparatus, the house for accommodating the radiation irradiation apparatus needs to be modified to provide sufficient radiation shielding to ensure that the operator or other personnel is not injured.

Disclosure of Invention

In view of the above, one of the technical problems to be solved by the embodiments of the present application is to provide a shielding apparatus to overcome at least some of the problems in the prior art.

The embodiment of the application provides a shielding device, shielding device includes: the shielding bin is arranged at the periphery of the ray radiation equipment and shields rays generated by the ray radiation equipment.

According to the technical scheme, the shielding bin is arranged on the periphery of the ray radiation equipment, and the shielding bin is used for at least partially shielding scattered rays generated by the ray radiation equipment, so that the radiation shielding requirement of the ray radiation equipment on a special machine room can be reduced or the dependence of the radiotherapy equipment on the special machine room can be eliminated.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 a-FIG. 1f are schematic structural views of several radiation irradiation devices;

FIGS. 2 a-2 g are schematic structural views of a radiotherapy device with an unsealed shielding bin in the embodiment of the application

FIG. 3 a-FIG. 3g are schematic structural views of a radiotherapy apparatus having a closed shielding bin in an embodiment of the present application;

FIG. 4 is a schematic view of another radiation therapy apparatus according to an embodiment of the present application;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a schematic view of another radiation therapy device according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a shield cartridge and a shield layer coupled by an adapting structure according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a shield cartridge coupled to a shield layer via an intermediate connector according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of an intermediate connecting member according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a shielding bin formed by splicing shielding shell segments according to an embodiment of the present disclosure;

FIGS. 11a-11f are schematic diagrams of different shielding shell segments spliced to form a shielding cage according to embodiments of the present disclosure;

FIG. 12 is a schematic diagram of a plurality of shielding shell segments spliced together by an adapter structure according to an embodiment of the present application;

FIG. 13 is a schematic view of a radiation therapy device according to an embodiment of the present application;

FIG. 14 is a schematic view of another radiation therapy device in accordance with an embodiment of the present application;

FIG. 15 is a schematic view of a patient portal in an embodiment of the present application;

FIGS. 16a-16b are schematic views of the structure of the suspension roller in the embodiment of the present application;

FIG. 17 is a schematic structural view of an operation port in an embodiment of the present application;

FIG. 18 is a schematic structural view of an isolation bin in an embodiment of the present application;

FIG. 19 is a schematic view of an isolation chamber according to an embodiment of the present application;

FIG. 20 is a schematic view of the structure of the revolving door in the embodiment of the present application;

FIG. 21 is a schematic structural diagram of a fresh air system in an embodiment of the present application;

FIG. 22 is a schematic view of the radiation therapy device of the embodiment of the present application;

FIG. 23 is a schematic view of the therapeutic head moving along the arc-shaped guide rail according to the embodiment of the present application;

FIG. 24 is a schematic view of the structure of the therapeutic head cooperating with the arc-shaped guide rail in the embodiment of the present application;

FIG. 25 is a schematic view of a structure of a source carrier of a source device according to an embodiment of the present application for uniformly distributing a plurality of radioactive sources;

FIG. 26 is a schematic view of a concentrated arrangement of multiple radioactive sources in a source carrier of a radiation source apparatus according to an embodiment of the present application;

fig. 27 is a schematic structural view of an optical monitoring system installed on a treatment couch according to an embodiment of the present application.

1. A frame; 11. a treatment cavity; 111. an opening; 112. a closed end; 12. a carrier; 121. a radioactive source; 13. a collimating body; 131. a collimating aperture; 14. a shielding layer; 15. an inlet; 16. a treatment head; 171. An arc-shaped guide rail; 173. a slider; 172. an arc-shaped rack; 181. a drive device; 182. a gear; 2. A treatment couch; 21. a moving bed body; 22. a base; 3. a shielding bin; 31. a first shielding bin; 32. a second shielding bin; 33. a first groove; 34. a second groove; 4. an intermediate connecting member; 3', a shield housing segment; 5. a patient access; 51. a first top roller; 52. a first bottom slide rail; 53. a first hand crank; 6. an operation port; 7. an isolation bin; 71. a hollow cavity; 72. an outer door; 73. a third hand crank; 8. an optical monitoring system.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.

Since the radiation irradiation apparatus, such as a radiotherapy apparatus, is used for treating a tumor by killing tumor cells with radiation rays emitted from the radiation irradiation apparatus, the radiation irradiation apparatus is generally required to be placed in a dedicated machine room having a radiation shielding capability to prevent the radiation rays from causing damage to an operator or other persons, and the construction period and the construction cost of the dedicated machine room limit the wide application of the radiation irradiation apparatus.

The following describes a radiation irradiation apparatus according to the present application by taking a radiation therapy apparatus as an example, but the present application is not limited thereto.

Referring to fig. 1a-1 f, which show schematic views of several types of radiation apparatus, fig. 1a is a schematic view of a robotic gantry radiotherapy apparatus; FIG. 1b is a schematic view of a C-arm gantry radiotherapy apparatus; FIG. 1c is a schematic view of a radiotherapy apparatus with a gantry of cylindrical configuration; FIG. 1d is a schematic view of a CT machine; FIG. 1e is a schematic view of a DR machine; fig. 1f is a schematic view of a hemisphere-gantry radiotherapy apparatus.

The radiation irradiation apparatus generally includes a gantry 1, a radiation source (not shown) mounted on the gantry 1, and a treatment couch 2 for carrying a patient. The radiation source emits radiation that irradiates the patient to perform a diagnosis or treatment. In order to avoid the radiation from causing physical damage to operators and other personnel during diagnosis or treatment, the radiation equipment is usually placed in a special machine room to complete diagnosis or treatment.

To this end, an embodiment of the present application provides a shielding apparatus, including: the shielding bin 3 is arranged at the periphery of the ray radiation equipment and is used for shielding rays generated by the ray radiation equipment.

According to the embodiment of the application, the shielding bin is arranged on the periphery of the ray radiation equipment, and the shielding bin is used for at least partially shielding the scattered rays generated by the ray radiation equipment, so that the radiation shielding requirement of the ray radiation equipment on a special machine room can be reduced or the dependence of the ray radiation equipment on the special machine room is eliminated.

In a specific implementation of the present application, the shielded enclosure is an enclosure or a non-enclosure.

In an embodiment of the present application, the treatment couch 2 includes a moving couch 21 and a support base 22, and the shielding bin 3 surrounds the moving couch 21 and the support base 22 and is disposed at the periphery of the radiation irradiation device.

This application embodiment is through enclosing the motion bed body and support pedestal in shielding the storehouse, has realized the shielding of the scattered ray of ray radiation equipment in treatment bed one side at least, consequently, can reduce the radiation shielding requirement of ray radiation equipment to special computer lab or make ray radiation equipment break away from the reliance to special computer lab.

In addition, because the motion bed body and the support base of treatment bed are all covered and are located the shielding storehouse, supply the space increase that the patient used in the whole shielding storehouse, help alleviateing patient's claustrophobia symptom.

In an embodiment of the present application, the shielding bin surrounds the gantry 1 and the treatment couch 2, is disposed at the periphery of the radiation irradiation device, and forms a non-enclosure for shielding the radiation generated by the radiation irradiation device.

The treatment couch 2 comprises a moving couch body 21 and a support base 22.

Specifically, the shielding bin 3 according to the embodiment of the present application is covered on the periphery of the gantry 1 of the radiation device and the treatment couch 2 thereof, so as to form a non-enclosed body for shielding the radiation generated by the radiation device.

As shown in fig. 2 a-2 g, the shielding bin 3 can surround the moving bed 21, the supporting base 22 and the gantry 1 of the treatment couch 2 from the front side (i.e., the treatment couch side), the left side and the right side of the radiation irradiation equipment, the rear side of the radiation irradiation equipment is open, and the shielding bin 3 is used for shielding the radiation scattered from the front side, the left side and the right side of the gantry.

Although the shielding bin does not shield the radiation rays scattered out from the rear side of the rack, the requirements of the radiation equipment on the machine room are at least reduced, the shielding of the radiation equipment scattered radiation can be realized only by performing radiation shielding transformation on the wall surface opposite to the rear side of the radiation equipment, the period for building the machine room is shortened, and the cost for building the machine room is reduced.

In addition, because the motion bed body 21 and the support base 22 of treatment bed 2 are all covered and located in shielding storehouse 3, the space that supplies the patient to use in the whole shielding storehouse 3 increases, helps alleviateing patient's claustrophobia symptom.

The form of the non-enclosed shielding bin is not limited in the embodiment of the present application, and the non-enclosed shielding bin may also be set to be in a form that the front side is open, or the rear side is open, or the left side is open, which is not limited in the embodiment of the present application.

In an embodiment of the present application, the shielding bin covers the gantry 1 and the treatment couch 2, and is disposed at the periphery of the radiation irradiation device to form an enclosure for shielding the radiation generated by the radiation irradiation device.

The treatment couch 2 comprises a moving couch body and a support base.

As shown in fig. 3 a-3 g, the shielding bin 3 completely covers the frame 1, the moving bed 21 and the supporting base 22 therein, that is: the shielding bin 3 is arranged to surround the periphery of the ray radiation equipment to form an enclosure. The shielding box 3 can shield the radiation rays scattered from the front side, the left side, the rear side and the right side of the radiation irradiation apparatus.

The embodiment of the application forms the self-shielding of the ray radiation equipment by arranging the closed shielding bin around the ray radiation equipment, thereby saving the requirement on a special machine room, and the self-shielding ray radiation equipment can be placed at any position, so that the application scene of the ray radiation equipment is enlarged.

The embodiment of the application the frame outside sets up the shielding layer, the shielding storehouse has an at least entry, the entry is the third shielding door that can open and shut, the third shielding door that can open and shut sets up the shielding storehouse is just right the position of the shielding layer of frame, just the opening size that the third shielding door that can open and shut is less than the size of the shielding layer of frame in frame axial direction.

As shown in fig. 4 and 5, a shielding layer 14 is disposed outside the rack 1, the shielding layer 14 and the rack 1 have the same width in the rack axial direction and are used for shielding radiation rays scattered from the left side, the right side and the upper side of the rack 1, the shielding bin 3 completely covers the rack 1, the moving bed 21 and the support base 22 therein, the shielding bin 3 has an entrance 15, the entrance 15 is a third openable and closable shielding door, the third openable and closable shielding door is disposed on the side wall of the shielding bin 3 and faces the shielding layer 14 of the rack, an opening size a of the third openable and closable shielding door (i.e., a size of the third openable and closable shielding door in the rack axial direction) is smaller than a size B of the shielding layer 14 of the rack in the rack axial direction, 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 rack, the radiation rays in the shielding bin 3 cannot leak from the opening of the third openable shielding door.

The interface between the third openable and closable shielding door and the shielding bin 3 is a non-straight-surface splicing interface so as to ensure that radiation rays cannot leak from the interface between the shielding door and the shielding bin. The non-straight-surface splicing interface F can be a V-shaped surface, a curved surface, an S surface and a step surface, and the embodiment of the application is not limited to the non-straight-surface splicing interface, and can also be realized by adopting other non-straight-surface splicing interfaces.

In an embodiment of the present application, the radiation device further includes a rack configured to carry a radiation source, a shielding layer is disposed outside the rack, and the shielding bin is coupled to the shielding layer to form an enclosure or a non-enclosure for shielding the radiation generated by the radiation device.

As shown in fig. 6, a shielding layer 14 is disposed outside the gantry 1 for surrounding the gantry 1 so as to shield the radiation rays scattered from the left side, the right side and the upper side of the gantry 1, the shielding bin 3 is disposed around the treatment couch 2 to enclose the moving bed 21 and the support base 22 of the treatment couch 2, and the shielding bin 3 forms a non-enclosed body by being coupled (coupling means direct connection or indirect connection) with the shielding layer 14, so that the rear end of the gantry is open to shield the radiation rays scattered from the front side, the left side and the right side of the radiation irradiation equipment.

According to the embodiment of the application, the shielding bin and the shielding layer are combined to shield the rays scattered from the front side, the left side and the right side of the rack, so that the shielding requirement of ray radiation equipment on a special machine room is lowered.

As shown in fig. 13, a shielding layer 14 is disposed outside the gantry 1 for surrounding the gantry 1 to shield the radiation scattered from the left, right and upper sides of the gantry 1, the shielding bins 3(31, 32) are disposed at the front and rear sides of the gantry, the moving bed 21 and the support base 22 of the treatment couch 2 are covered by the front shielding bin 31 of the gantry 1, the rear end of the gantry 1 is closed by the rear shielding bin 32 of the gantry 1, and the front and rear shielding bins 3 form an enclosure by being coupled (coupling refers to direct connection or indirect connection) with the shielding layer 14 to shield the radiation scattered from the radiation equipment.

As shown in fig. 14, a shielding layer 14 is disposed outside a source carrier 12 of a source device (i.e., a gantry) for surrounding the source carrier 12 to shield radiation scattered from the left, right, back, and above of the source device, the shielding bin 3 is disposed around the treatment couch 2 to enclose a moving couch body 21 and a base 22 of the treatment couch 2 therein, and the shielding bin 3 forms an enclosure to shield radiation scattered from the radiotherapy apparatus by being coupled (coupling refers to direct connection or indirect connection) with the shielding layer 14.

The embodiment of the application forms a closed shielding bin through the combination of the shielding bin and the shielding layer, and forms self-shielding of the ray radiation equipment, so that the requirement on a special machine room is omitted, the self-shielding ray radiation equipment can be placed at any position, and the application scene of the ray radiation equipment is enlarged.

In the embodiment of the present application, the shielding bin 3 is detachably coupled to the shielding layer 14, or the shielding bin 3 and the shielding layer 14 are integrally formed. Namely: the shielding bin 3 can be separated from the rack 1 and used as an accessory of ray radiation equipment and is installed according to the requirements of users; alternatively, the shielding cage 3 may be formed integrally with the gantry 1 as an intrinsic component of the radiation irradiating apparatus.

In the embodiment of the application, the shielding bin is in adaptive connection with the shielding layer through an adaptive structure, so that coupling is realized.

As shown in fig. 7, the shielding bin 3 is in adaptive connection with the shielding layer 14 through a non-straight-surface splicing interface F, and the adaptive structure is the non-straight-surface splicing interface F. As shown in fig. 7, the non-straight splicing interface F may be a stepped surface, a curved surface, an S-surface, a V-surface, or the like. The embodiment of the application is not limited to the non-straight-surface splicing interface, and can also be realized by adopting other non-straight-surface splicing interfaces. The non-straight-surface splicing interface can adopt the same interface form to realize adaptive connection and also can adopt different interface forms to realize adaptive connection. The embodiment of the application realizes the connection between the shielding bin and the shielding layer through the non-straight-surface splicing interface so as to ensure that the ray leakage does not occur from the interface between the shielding bin and the shielding layer.

In the embodiment of the application, the shielding bin is connected with the shielding layer through an intermediate connecting piece to realize coupling. The middle connecting piece is used as a bridging piece for connecting the shielding bin and the shielding layer, and the shielding bin and the shielding layer are connected through the middle connecting piece.

As shown in fig. 8, the intermediate connecting member 4 is in fit connection with the shielding bin 3 through a fitting structure; or, the intermediate connecting member 4 is in adaptive connection with the shielding layer 14 through an adaptive structure; or, the intermediate connecting member 4 is in fit connection with the shielding bin 3 and the shielding layer 14 through a fit structure. This application embodiment, through adopting intermediate junction spare 4 to realize being connected between shielding storehouse 3 and the shielding layer 14 to overcome the mismatch nature between shielding storehouse 3 and the shielding layer 14, improve the commonality in shielding storehouse. The adaptive structure is a non-straight-surface splicing interface F, as shown in fig. 9, the non-straight-surface splicing interface F is an S surface, and can also be a curved surface, a step surface, a V-shaped surface and the like. The embodiment of the application is not limited to the non-straight-surface splicing interface, and can also be realized by adopting other non-straight-surface splicing interfaces as long as the interface can be ensured to have no ray leakage. The non-straight-surface splicing interface can adopt the same interface form to realize adaptive connection and also can adopt different interface forms to realize adaptive connection.

In one embodiment of the present application, the shielding cage 3 comprises a shielding shell segment, namely: the shielding shell segments are integrally formed, and the shielding bin is formed without splicing the shielding shell segments.

In one embodiment of the present application, as shown in fig. 10, the shielding cage 3 comprises a plurality of shielding shell segments 3'. The embodiment of the application can realize that the shielding bin 3 is formed by a plurality of shielding shell fragments 3', so that the transportation of the shielding bin 3 is more convenient.

In the embodiment of the present application, the shielding bins 3 are formed by detachably splicing the plurality of shielding shell segments 3'. The embodiment of the application realizes the assembly of the plurality of shielding shell segments 3' in a detachable splicing mode, so that the shielding bin 3 is simpler to install and more diversified and flexible in use places.

Meanwhile, a plurality of shielding shell segments 3' which are detachably spliced are adopted to form a shielding bin 3, and the shape and the occupied space of the shielding bin can be adjusted according to the installation place and the treatment requirement of the ray radiation equipment. Referring to fig. 11a-11 b, the embodiment of the present application requires changing the shape of the shielding bin 3, and only needs to increase or decrease the number of the shielding shell segments 3'. Referring to fig. 11c to 11d, the embodiment of the present application needs to enlarge or reduce the occupied space of the shielding bin 3, and only needs to increase or decrease the number of the shielding shell segments 3'.

Referring to fig. 11e-11f, the embodiment of the present application may also adjust the shape and the occupied space of the shielding bin by adding or reducing the shielding shell segment 3' with a different size or shape from the original shielding shell segment.

In order to avoid the radiation in the shielding bin from leaking through the gaps between the shielding shell segments, as shown in fig. 12, the interfaces of the shielding shell segments are non-straight splicing interfaces F.

Specifically, referring to fig. 12, the non-straight surface splicing interface F of the plurality of shielding shell segments 3' may be a curved surface, or may be an S surface, a step surface, a V-shaped surface, or the like.

The interfaces described in the embodiments of the present application may adopt the same interface or different interfaces.

The embodiment of the application is not limited to the above interface, and can be realized by splicing other non-straight interfaces as long as the interface is ensured to be free from ray leakage.

The shielding bin is made of metal materials with shielding effects, such as steel materials, lead materials and tungsten materials.

In one embodiment of the present application, referring to fig. 15, the shielded enclosure has at least one patient access opening 5, the patient access opening 5 allowing a patient to enter and exit the shielded enclosure 3.

The number of the patient inlets 5 can be one or more, and the patient inlets 5 can be arranged on the same side or different sides of the shielding chamber 3.

The embodiment of the present application is not limited to having the patient entrance 5, and the patient may enter the shielding chamber by other means, such as entering the shielding chamber when the shielding shell segments are not spliced, entering the shielding chamber by a tunnel of the installation position of the radiotherapy equipment, and the like.

In particular, the patient access 5 is a first openable and closable shielding door. That is, the patient can enter and exit through the opening of the first openable and closable shielding door, and the ray shielding is realized through the closing of the first openable and closable shielding door.

The first openable and closable shielding door is arranged at the position of the shielding bin 3 close to the treatment bed 2, so that a patient can conveniently arrive at the treatment bed 2 as soon as possible.

The first openable and closable shielding door is arranged on the side surface or the tail end of the treatment bed 2. The first openable and closable shielding door is arranged on the side surface of the treatment bed 2, so that a patient can conveniently go up and down the treatment bed 2. The first openable and closable shielding door is arranged at the tail end of the treatment bed 2, so that the treatment bed 2 can be pulled manually in an emergency, and the treatment bed 2 can rapidly pass through the first openable and closable shielding door and is pulled out of the shielding bin.

In order to realize the opening and closing operation of the first openable and closable shield door, the first openable and closable shield door is opened in an electric mode and/or a manual mode.

The opening and closing operation of the first openable and closable shielding door can be realized in an electric and manual combination mode.

For example, the first openable and closable shield door is opened and closed in an electric manner, and when a fault occurs or the radiotherapy equipment needs emergency operation, the first openable and closable shield door is opened manually.

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

When the first openable and closable shielding door is multiple, different doors can be adopted, and the same door can also be adopted.

According to the embodiment of the application, the first openable and closable shielding door can select the form of the door and the opening and closing direction of the door according to the installation place of the radiotherapy equipment and the use state of the radiotherapy equipment.

And if the mounting position of the radiotherapy equipment is close to the wall surface, selecting a rolling door or a sliding door as a first openable shielding door.

The radiation therapy equipment is installed the inner space of shielding storehouse is limited, then select rolling slats door or push-and-pull door as first shield door that can open and shut, perhaps select the side door of opening outward.

The first openable and closable shielding door is a sliding door, and the manual opening is realized by adopting a manual operation guide or rolling structure (namely, the first openable and closable shielding door is manually pushed and pulled by virtue of the guide or rolling structure so as to realize the opening and closing of the first openable and closable shielding door) or a hand-operated driving mode (namely, a transmission system of the first openable and closable shielding door is driven by the hand-operated mode so as to further drive the first openable and closable shielding door to realize the opening and closing of the first openable and closable shielding door).

In order to realize better opening and closing operation, reduce friction and increase the smooth feeling of opening and closing, the guiding or rolling structure is a suspension roller structure.

Referring to fig. 16a and 16b, the suspension roller structure includes a first top roller 51 at the top end of the screen door 5 ' and a first bottom sliding rail 52 at the bottom of the screen door 5 ', the first top roller 51 is located in a first groove 33 in the screen cabin 3, the first bottom sliding rail 52 is located in a second groove 34 in the screen cabin 3 or the ground, and the screen door 5 ' is opened and closed by the left and right relative movement of the first top roller 51 and the first bottom sliding rail 52 with respect to the screen cabin 3.

This application embodiment passes through first top gyro wheel 51 and the first bottom slide rail 52 of shield door 5' bottom realizes opening or closing of first shield door that can open and shut can realize the smoothness that first shield door that can open and shut opens and shuts is opened and shut, and this kind of hanging gyro wheel structure maintenance is simple, convenient to use.

Referring to fig. 16b, the hand-cranking driving manner is to perform a hand-cranking operation through a first hand crank coupled (directly or indirectly connected) to the first openable and closable shield door, and send a driving force generated by the hand-cranking operation to the first openable and closable shield door to control the opening and closing of the first openable and closable shield door.

This application embodiment can be through hand dynamics and speed control first shield door speed of opening and shutting makes first shield door that can open and shut break down perhaps radiotherapy equipment breaks down, needs carry out emergency operation when opening or closing of first shield door that can open and shut, realize rapidly through hand operation first shield door operation of opening and shutting.

The first hand crank 53 is not limited to a mounting position in the embodiment of the present application, as long as the driving force generated by the hand cranking operation can be transmitted to the first openable and closable shield door to control the opening and closing thereof.

The interface between the first openable and closable shielding door and the shielding bin is a non-straight-surface splicing interface.

In order to avoid leakage of rays in the shielding bin through a gap between the first openable shielding door and the shielding bin, an interface between the first openable shielding door and the shielding bin is a non-straight-surface splicing interface. Specifically, the interface between the first openable and closable shielding door and the shielding bin is one of a curved surface, an S surface, a step surface and a V-shaped surface.

The interfaces described in the embodiments of the present application may adopt the same interface or different interfaces. The embodiment of the application is not limited to the above interface, and can be realized by splicing other non-straight interfaces as long as the interface is ensured to be free from ray leakage.

In one embodiment of the present application, referring to fig. 17, the shielding chamber 3 has at least one operation opening 6, and the operation opening 6 is used for an operator to enter and exit the shielding chamber.

The operation port 6 may be present in the shielding chamber 3 together with the patient inlet 5 in the embodiment, or only the patient inlet 5 or only the operation port 6 may be present in the embodiment.

The operation opening 6 is a second openable and closable shielding door.

Namely, the operator can enter and exit through the opening of the second openable and closable shielding door, and the ray shielding is realized through the closing of the second openable and closable shielding door.

In this application embodiment, the second openable and closable shielding door is arranged at a position close to the radioactive source, so that an operator can conveniently enter the shielding bin to open and close the radioactive source or maintain the radioactive source.

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 in an electric mode and/or a manual mode.

The opening and closing operation of the second openable and closable shielding door can be realized in an electric and manual combination mode.

For example, the second openable and closable shield door is opened and closed in an electric manner, and when a fault occurs or the radiotherapy equipment needs emergency operation, the second openable and closable shield door is opened manually.

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

When the second openable and closable shielding door is multiple, different doors can be adopted, and the same door can also be adopted.

According to the embodiment of the application, the second openable and closable shielding door can select the form of the door and the opening and closing direction of the door according to the installation place of the radiotherapy equipment and the use state of the radiotherapy equipment.

For example, if the radiation therapy device needs to be installed at a position close to the wall surface, a rolling door or a sliding door is selected as the second openable shielding door.

For example, if the radiation therapy equipment has a limited internal space for installing the shielding chamber, a rolling door or a sliding door is selected as the second openable shielding door, or an outward opening side door is selected.

Specifically, the second openable and closable shielding door is a sliding door, and the manual opening is realized by adopting a manual operation guide or rolling structure (i.e., the second openable and closable shielding door is manually pushed and pulled by means of the guide or rolling structure to realize the opening and closing of the second openable and closable shielding door) or a hand-operated driving mode (i.e., a transmission system of the second openable and closable shielding door is driven by a hand-operated mode to further drive the second openable and closable shielding door to realize the opening and closing of the second openable and closable shielding door).

Similar to the first shield door that can open and shut, the suspension roller structure that the second shield door that can open and shut adopted includes in the second top gyro wheel on second shield door top and in the second bottom slide rail of second shield door bottom that can open and shut, the second top gyro wheel is located in the third recess in the shielding storehouse, second bottom slide rail is located in the fourth recess on shielding storehouse or ground, the second shield door that can open and shut passes through the second top gyro wheel and the second bottom slide rail realize with the relative movement about the shielding storehouse opens and shuts.

The embodiment of the application passes through second top gyro wheel and the second bottom slide rail of shield door bottom is realized opening or closing of second shield door that can open and shut can be in the realization the second can open and shut the smooth of opening and shutting of shield door, and this kind of gyro wheel structure that hangs maintains simply convenient to use.

The hand-operated driving mode is to carry out hand-operated operation through a second hand crank coupled (directly or indirectly connected) with the second openable and closable shielding door, and to send the driving force generated by the hand-operated operation to the second openable and closable shielding door, so as to control the opening and closing of the second openable and closable shielding door.

This application embodiment can be through hand dynamics and speed control the second shield door speed of opening and shutting is the second shield door that can open and shut breaks down or radiotherapy equipment breaks down, needs carry out emergency operation the second shield door that can open and shut opens or when closing, realizes rapidly through hand operation the second shield door that can open and shut operation.

The embodiment of the present application is not limited to the installation position of the second handle, and may be any position as long as it can transmit the driving force generated by the hand cranking operation to the second openable and closable shield door to control the opening and closing thereof.

The interface between the second openable and closable shielding door and the shielding bin is a non-straight-surface splicing interface.

In order to avoid that rays in the shielding bin are leaked and emitted through a gap between the second openable shielding door and the shielding bin, an interface between the second openable shielding door and the shielding bin is a non-straight-surface splicing interface. Specifically, the interface between the second openable and closable shielding door and the shielding bin is one of a curved surface, an S surface, a step surface and a V-shaped surface.

In an embodiment of the present application, in order to further avoid radiation ray radiation leakage when the first openable and closable shield door or the second openable and closable shield door is opened, the first openable and closable shield door and/or the second openable and closable shield door has a separation bin 7, and the separation bin 7 separates the radiation ray radiation leakage when the first openable and closable shield door or the second openable and closable shield door is opened.

In the embodiment of the present application, the isolation bin 7 isolates the radiation ray leaked when the first openable and closable shielding door or the second openable and closable shielding door is opened, so as to achieve a better radiation shielding effect.

In particular, the isolation chamber 7 may be for any first openable and closable screen door and second openable and closable screen door, such as one of a sliding door, a rolling door, and a side door. The isolation bin 7 may be disposed corresponding to the first openable and closable shield door and/or the second openable and closable shield door, that is, the isolation bin 7 may be disposed separately for the first openable and closable shield door and the second openable and closable shield door, or one isolation bin 7 may be disposed for the first openable and closable shield door and the second openable and closable shield door.

As shown in fig. 18, the isolation chamber 7 is disposed at the outer sides of the first openable and closable shield door and the second openable and closable shield door in the shield chamber 3, so as to shield the radiation leakage when the first openable and closable shield door or the second openable and closable shield door is opened, but the isolation chamber 7 is not limited to be disposed at the outer sides of the first openable and closable shield door and the second openable and closable shield door, and may be disposed at other positions, such as the inner sides of the first openable and closable shield door and the second openable and closable shield door.

Referring to fig. 18, the isolation chamber 7 includes a hollow cavity 71 disposed outside the first openable and closable shield door and the second openable and closable shield door, before the first openable and closable shield door or the second openable and closable shield door is opened, an operator enters the hollow cavity 71 to wait for the opening of the first openable and closable shield door or the second openable and closable shield door, when the first openable and closable shield door or the second openable and closable shield door is opened, the operator rapidly enters the shield chamber 3, and when the first openable and closable shield door or the second openable and closable shield door is opened, radiation rays leaking through the opening of the first openable and closable shield door or the second openable and closable shield door are shielded by a chamber wall of the isolation chamber 7.

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

As shown in fig. 19, in order to further isolate the leaking rays when the first openable and closable shielding door or the second openable and closable shielding door is opened, the isolation chamber 7 further includes an outer door 72 entering the hollow cavity 71.

The outer door 72 may be one of a sliding door, a rolling door, and a side door. The outer side door can be one or more, and can also be a plurality of different doors, and only the leakage ray when the first openable and closable shielding door and the second openable and closable shielding door are opened can be isolated.

In order to realize the opening and closing operation of the outer door, the outer door is opened in an electric mode or a manual mode.

The embodiment of the application can also adopt an electric mode and a manual mode to realize the opening and closing operation of the outer door.

For example, the outer door is electrically opened and closed, and when a fault occurs or the radiotherapy equipment needs to be emergently operated, the outer door is manually opened and closed.

Referring to fig. 20, in an embodiment of the present application, the first openable and closable shielding door and/or the second openable and closable shielding door is a revolving door, the revolving door has a shielding bin 7, and the first openable and closable shielding door and/or the second openable and closable shielding door implement shielding of radiation leakage when an operator enters the shielding bin 3 through the shielding bin 7 in the revolving door.

The revolving door is opened in an electric mode or a manual mode.

The embodiment of the application can also realize the opening and closing operation of the revolving door in a mode of combining electric operation and manual operation.

For example, the revolving door is electrically operated to realize the revolving opening and closing operation, and when a fault occurs or the radiotherapy equipment needs emergency operation, the revolving opening and closing operation of the revolving door is manually opened.

Referring to fig. 20, the hand-operated driving manner is to perform a hand-operated operation through a third hand handle 73 coupled (directly or indirectly connected) to the revolving door, and transmit a driving force generated by the hand-operated operation to the revolving door to control the opening and closing of the revolving door.

This application embodiment can be through hand dynamics and speed control the revolving door speed of opening and shutting is the revolving door breaks down or radiotherapy equipment breaks down, needs carry out emergency operation the opening of revolving door or when closing, realize rapidly through hand operation the revolving door operation of opening and shutting.

This application embodiment is to the mounted position of third crank 73 is not restricted, as long as can realize with the drive power of hand operation production send to it can open and shut to the revolving door control.

The interface between the revolving door and the shielding bin is a non-straight surface splicing interface.

In order to avoid the leakage of rays in the shielding bin through a gap between the rotating door and the shielding bin, an interface between the rotating door and the shielding bin is a non-straight-surface splicing interface. Specifically, the interface between the revolving door and the shielding bin is one of a curved surface, an S surface, a step surface and a V-shaped surface.

In an embodiment of the present application, a display and/or playback device is disposed in the shielding chamber and/or the housing, and the display and/or playback device plays back the content data according to the preference of the patient or the instruction of the user.

In particular, the patient preferences may be obtained from patient information or selected by the patient according to user instructions, the content data comprising at least one of video content data, image content data, sound content data. In the ray radiation equipment, such as the shielding bin or the rack, the played content data can enable patients in the treatment process to have better impression experience, so that the fear of claustrophobia of the patients in the treatment process is relieved.

Referring to fig. 21, in an embodiment of the present application, a fresh air system is disposed in the shielding bin 3.

The air outlet of the fresh air system is arranged at a position, close to the ground, of the side wall of the shielding bin, and the air inlet is arranged at a position, close to the top of the shielding bin, of the side wall of the shielding bin or at the top of the shielding bin.

Specifically, the air outlet penetrates through the side wall along a preset oblique angle, and the air inlet penetrates through the side wall or the top of the shielding bin along a preset oblique angle. The preset oblique angle direction is a direction forming an angle with the irradiation direction of the ray, so that the ray is prevented from being leaked along the air outlet and/or the air inlet. Illustratively, the predetermined oblique angle is at a 45 degree angle from horizontal.

And a protective wall can be arranged outside the air outlet and/or the air inlet and used for shielding possible ray leakage. The air inlet is far away from the air outlet. The distance between the air inlet and the air outlet enables air to flow in the shielding bin, so that fresh air exchange is realized.

Specifically, the air inlet and the air outlet are arranged diagonally. The larger the distance between the air inlet and the air outlet is, the more fully the air flows in the shielding bin, and the better the realized fresh air exchange effect is.

In the present embodiment, the gantry 1 of the radiation irradiation apparatus is configured to carry a plurality of radiation sources 121, and the radiation emitted by the plurality of radiation sources 121 is focused at a point O, which is called a focal point. Typically, the focal point is located on the central axis of the gantry 1.

In an embodiment of the application, the gantry rotates around its central axis. According to the embodiment of the application, the adoption of fewer small-dose radioactive sources is realized through the rotary motion of the frame, continuous large-dose irradiation is obtained at the focus, and surrounding normal tissues are only irradiated by trace radiation, so that the damage degree of radiotherapy is reduced to the minimum.

In an embodiment of the application, the gantry 1 is used to carry a treatment head configured to emit X-rays or gamma rays. For example: the treatment head is a medical electron accelerator treatment head and is used for emitting X rays; the treatment head is an integrated treatment head loaded with a cobalt 60 source and is used for emitting gamma rays; or the treatment head is a carrier loaded with a radiation source, namely: a cobalt 60 source or X-ray source is carried directly on the circumferential face of the gantry for emitting gamma rays or X-rays.

In an embodiment of the application, the treatment head is configured to rotate about the gantry central axis such that the treatment head emits treatment beams to the patient from various angles around the patient.

As shown in fig. 22, the therapeutic head 16 can rotate around the central axis of the frame 1, and can be realized by rotating the frame or by arranging a rotating track on the frame and driving the therapeutic head to move along the rotating track.

In an embodiment of the application, the treatment head is configured to emit X-rays or gamma-rays in a direction intersecting a plane of rotation, the plane of rotation being a plane perpendicular to the central axis of the gantry. The treatment head can irradiate the patient from a plurality of directions intersected with the rotating plane, and meanwhile, the treatment head can irradiate the patient from a plurality of planes intersected with the rotating plane by combining the rotating motion of the treatment head around the central axis of the rack so as to realize the irradiation of nearly 4 pi.

As shown in fig. 23 and 24, the treatment head 16 is connected to the frame 1 through an arc-shaped guide rail 171 arranged along the axial direction of the frame, the arc-shaped guide rail 171 is fixedly arranged on the frame 1 along the axial direction of the frame, the treatment head 16 is slidably connected to the arc-shaped guide rail 171 through a slider 173, an arc-shaped rack 172 extending along the axial direction of the frame is arranged on the treatment head 16, a driving device 181 is arranged on the frame 1, and a gear 182 engaged with the arc-shaped rack 172 is connected to an output end of the driving device 181. 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 a plurality of directions intersecting with the rotation plane.

The treatment head is connected with the frame through a pivot, and the treatment head can irradiate the patient from a plurality of directions intersected with the rotation plane through the rotation of the pivot.

In an embodiment of the present application, an imaging system is disposed in the shielding bin and/or the rack. The imaging system comprises an X-ray generator and a detector which are oppositely arranged, and the X-ray generator emits rays which penetrate through the body of a patient and are received by the detector so as to image focuses and/or organs in the body of the patient.

The image system can be arranged in the shielding bin, can also be arranged in the rack, and can also be arranged in the shielding bin and the rack. The radiotherapy equipment of the embodiment of the application can be provided with one or more sets of the imaging systems. The number of the imaging systems in the radiotherapy apparatus is not limited in the embodiments of the present application.

In an embodiment of the present application, a slip ring is disposed on the rack for power and/or signal transmission up and down the rack. The slip ring comprises a stator and a rotor, and the rotor is coaxially connected with the end face of the cylindrical rack and can rotate along with the cylindrical rack; the stator is fixed on the frame, is connected with a power source and/or a signal source, and provides power for the rotating frame and transmits signals through the coupling between the stator and the rotor.

In another embodiment of the present application, the gantry of the radiation apparatus is embodied as a radiation source device 1, a treatment cavity 11 is formed in the radiation source device 1, an end of the radiation source device 1 has an opening 111 for the treatment couch 2 to enter and exit the treatment cavity, and an end of the treatment cavity 11 opposite to the opening 111 is a closed end 112.

The radioactive source 121 loaded on the 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.

In an embodiment of the present application, the radiation source 121 loaded on the carrier body 12 of the radiation source apparatus 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.

In the present exemplary embodiment, the carrier body 12 of the radiation source arrangement 1 carries a plurality of radiation sources 121, and the radiation emitted by the plurality of radiation sources 121 is focused at a point O, which is referred to as the focal point. Typically, the focal point is located on the central axis of the source arrangement 1.

In the embodiment of the present application, as shown in fig. 25, the plurality of radiation sources 121 includes a plurality of radiation source groups 1211, as shown in fig. 25, the plurality of radiation sources 121 includes 6 radiation source groups 1211, the plurality of radiation source groups 1211 are uniformly distributed on the whole circumferential surface of the carrier body 12 of the radiation source device, and the radiation sources 121 in each radiation source group 1211 are distributed in different latitudinal regions of the carrier body 12 of the radiation source device, so as to implement the focused irradiation on the patient from different directions.

In the embodiment of the present application, as shown in fig. 26, the plurality of radiation sources 121 includes a plurality of radiation source groups 1211, the plurality of radiation source groups 1211 are collectively disposed in a region Q of the circumferential surface of the carrier body 12 of the radiation source device, and the radiation sources 121 in each of the radiation source groups 1211 are distributed in different latitudinal regions of the carrier body 12 of the radiation source device, so as to implement the focused irradiation on the patient from different directions.

In the present embodiment, the source arrangement is rotated about its central axis l. According to the radiation source device, the radiation source device is rotated, so that a small number of small-dose radiation sources are adopted, continuous large-dose irradiation is obtained at a focus, surrounding normal tissues are irradiated by only a small amount of radiation, and the damage degree of radiotherapy is reduced to the minimum.

In an embodiment of the present application, an imaging system is disposed within the shield chamber and/or within the source arrangement. The imaging system comprises an X-ray generator and a detector which are oppositely arranged, and the X-ray generator emits rays which penetrate through the body of a patient and are received by the detector so as to image focuses and/or organs in the body of the patient.

The imaging system can be arranged in the shielding bin, can also be arranged in the radiation source device, and can also be arranged in the shielding bin and the radiation source device. The radiotherapy equipment of the embodiment of the application can be provided with one or more sets of the imaging systems. The number of the imaging systems in the radiotherapy apparatus is not limited in the embodiments of the present application.

In an embodiment of the application, the radiotherapy apparatus further comprises an optical monitoring system, which may be used to monitor the movement of the patient on the treatment couch, which may be an infrared monitoring system.

The optical monitoring system may comprise a radiation generator, a radiation receiver and a marker, the marker being attached to a surface of a patient's body in use, radiation emitted by the radiation generator being received by the radiation receiver via reflection from the marker, the time at which the reflected radiation is received being used to determine movement of the patient.

The optical monitoring system may further comprise a radiation receptor and a marker, the marker being attached to a surface of the patient's body in use, the marker emitting radiation autonomously for receipt by the radiation receptor to determine the patient's movement by the time of receipt of the radiation.

The optical monitoring system may further comprise a radiation emitter and a radiation receiver, in use, radiation emitted by the radiation generator, reflected by the skin of the patient, is received by the radiation receiver, and the time at which the reflected radiation is received is used to determine the movement of the patient.

The optical monitoring system may also comprise only a radiation receiver, in use, natural light reflected from the skin of the patient is received by the radiation receiver, and the time at which the reflected radiation is received is used to determine the movement of the patient.

The optical monitoring system is arranged on the treatment couch, and as shown in fig. 27, the optical monitoring system 8 is arranged at the tail part of the treatment couch 2. The optical monitoring system may also be arranged at other locations of the radiotherapy apparatus, for example: is arranged at the upper part of the treatment bed and is hung at the top of the shielding bin.

In the present application, the treatment couch may be a three-dimensional couch, i.e.: the treatment couch can move in the transverse direction, the longitudinal direction and the lifting direction. Of course, the treatment couch can also be a four-dimensional couch, a five-dimensional couch, a six-dimensional couch, etc., and the four-dimensional couch, the five-dimensional couch and the six-dimensional couch are the four-dimensional couch, the five-dimensional couch and the six-dimensional couch, namely, the four-dimensional couch, the five-dimensional couch and the six-dimensional couch are added with the rotation or the swing of the treatment couch in the transverse direction and/or the longitudinal direction and/or the lifting direction on the basis of the three-dimensional couch.

In this application, the shielding storehouse can be directly with ground fixed connection, also can with radiotherapy equipment's base fixed connection.

In this application, can realize fixed connection through rag bolt between shielding storehouse and ground or the base of radiotherapy equipment, shielding storehouse with can realize fixed connection through the bolt between the shielding layer, can realize fixed connection through the bolt between the shielding casing fragment in shielding storehouse, of course, also can take other fixed connection modes to realize connecting, for example: welding, bonding, screw nut connection and the like, and the application does not limit the way of realizing the fixed connection of the structures.

The present application also provides a radiotherapy apparatus comprising a shielding device according to any one of the above. In particular, the radiotherapy apparatus is an accelerator or gamma knife radiotherapy apparatus.

A1, a shielding device, comprising: the shielding bin is arranged at the periphery of the ray radiation equipment and shields rays generated by the ray radiation equipment.

A2, the shielding device of claim a1, wherein the ray radiation equipment comprises a frame and a treatment couch, the frame is configured to carry a radioactive source, the treatment couch comprises a moving bed and a supporting base, the shielding bin surrounds the moving bed and the supporting base and is arranged at the periphery of the ray radiation equipment.

A3, the shielding device according to claim a2, wherein the shielding box surrounds the machine frame and the treatment couch, is arranged at the periphery of the radiation device, forms an enclosure, and shields the radiation generated by the radiation device.

A4, the shielding device according to claim A2, wherein a shielding layer is disposed outside the machine frame, and the shielding layer is coupled with the shielding bin and used for shielding the ray generated by the ray radiation equipment.

A5, the shielding device of claim A4, wherein the shielding bin is detachably coupled with the shielding layer, or the shielding bin and the shielding layer are integrally formed.

A6, the shielding device of claim A5, wherein the shielding bin is fittingly connected with the shielding layer through a fitting structure.

A7, the shielding device of claim a5, wherein the shielding cartridge is connected to the shielding layer by an intermediate connector.

A8, the shielding device according to claim A7, wherein the intermediate connector is adapted to the shielding bin and/or the shielding layer by means of an adapting structure.

A9, the shielding device of claim a6 or A8, wherein the adapting structure is a non-straight face splice interface.

The shielding device of claim a1, a10, wherein the shielding cartridge comprises a plurality of shielding shell segments.

The shielding device of claim a10, a11, wherein said plurality of shielding shell segments are detachably spliced to form said shielding cartridge.

The shielding apparatus of claim a11, a12, wherein the interfaces of the plurality of shielding shell segments are non-straight-face splice interfaces.

A13, the shielding device of claim A1, wherein said shielding cartridge has at least one patient access port for patient access to said shielding cartridge.

A14, the shielding device of claim a13, wherein the patient access is a first openable and closable shielding door.

A15 the shielding apparatus of claim A14, wherein the first openable and closable shielding door has an isolation bin for isolating rays leaking when the first openable and closable shielding door is opened.

A16, the shielding device of claim A1, wherein the shielding compartment has at least one operation opening for an operator to enter and exit the shielding compartment.

A17, the shielding device according to claim A16, wherein the operation opening is a second openable and closable shielding door.

The shielding device of claim a17, a18, wherein the second openable/closable shielding door has an isolation bin for isolating radiation that leaks when the shielding door is opened.

A19, the shielding device according to claim A3, wherein a shielding layer is disposed outside the machine frame, the shielding bin has at least one inlet, the inlet is a third openable and closable shielding door, the third openable and closable shielding door is disposed at a position where the shielding bin faces the shielding layer, and the opening of the third openable and closable shielding door is smaller than the size of the shielding layer in the axial direction of the ray radiation equipment.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A shielding device, characterized in that it comprises: the shielding bin is arranged at the periphery of the ray radiation equipment and shields rays generated by the ray radiation equipment.

2. The shielding apparatus according to claim 1, wherein the radiation irradiation device comprises a frame and a treatment couch, the frame is configured to carry a radiation source, the treatment couch comprises a moving bed and a support base, and the shielding bin surrounds the moving bed and the support base and is disposed at the periphery of the radiation irradiation device.

3. The shielding device according to claim 2, wherein the shielding bin surrounds the gantry and the treatment couch, is disposed at a periphery of the radiation irradiating apparatus, and forms an enclosure for shielding the radiation generated from the radiation irradiating apparatus.

4. The shielding device according to claim 2, wherein a shielding layer is disposed outside the gantry, and the shielding layer is coupled to the shielding bin to shield the radiation generated by the radiation device.

5. The shielding device of claim 4, wherein the shielding bin is detachably coupled to the shielding layer, or the shielding bin and the shielding layer are integrally formed.

6. The shielding device of claim 5, wherein the shielding cartridge is adapted to be coupled to the shielding layer via an adapting structure.

7. The shielding device of claim 5, wherein the shield cartridge is connected to the shield layer by an intermediate connector.

8. The shielding device of claim 7, wherein the intermediate connector is adapted to connect to the shielding cartridge and/or the shielding layer via an adapting structure.

9. The shielding device of claim 6 or 8, wherein the mating structure is a non-straight face splice interface.

10. The shielding device of claim 1, wherein the shielding cartridge comprises a plurality of shielding shell segments.