Ray detection device and C-arm system

Abstract

The present invention provides a ray detection device and a C-arm system. The device includes a first base body, a second base body, and a flat panel detector. The first base body includes a first base shell. The second base body includes a second base shell assembled with the first base shell, and the material density of the second base shell is less than that of the first base shell. The flat panel detector is installed on the second base shell, and the projection of the flat panel detector along its own vertical direction is within the range of the second base shell. As described above, after the first base shell and the second base shell are assembled with each other and cooperate with the flat panel detector, since the material density of the first base shell is less than that of the second base shell, it is beneficial to balance the weight of the end of the C-arm provided with the flat panel detector through the cooperation of the first base shell and the second base shell, which can ensure that the weight of the end of the C-arm provided with the flat panel detector is balanced with the end provided with the ray source assembly, so that the flat panel detector and the ray source assembly are in a state of indifferent equilibrium when moving with the C-arm within the spatial range.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a ray detection device and a C-arm system. Background Art

[0002] With the improvement of medical standards, ray (such as X-ray) imaging devices have been widely used, especially mobile ray imaging devices, which are widely used in hospitals due to their movable properties. Mobile ray imaging devices can be, for example, mobile X-ray machines, which usually include a C-arm and a ray source assembly and a flat panel detector arranged at both ends of the C-arm.

[0003] Before surgery, the mobile X-ray machine needs to be moved from one room to another. During the movement of the mobile X-ray machine, collisions may occur, such as the ray source assembly or the flat panel detector colliding with the wall. In addition, during clinical diagnosis, the mobile X-ray machine may collide with other medical devices, such as the ray source assembly or the flat panel detector colliding with the hospital bed.

[0004] Based on this, collision protection measures need to be taken for the mobile X-ray machine to ensure that the collision resistance of the mobile X-ray machine meets the preset requirements and prevent it from being overly collided and affecting normal operation. Currently, a housing is usually arranged at the end of the C-arm where the flat panel detector is located to protect the flat panel detector from direct collision when the C-arm moves within the space range. There are mainly two forms of existing housings, one is an injection molded housing, and the other is a metal housing. Although the metal housing has higher strength compared to the injection molded housing and has significant advantages in resisting accidental collisions, simply replacing the injection molded housing with a metal housing will cause one end of the C-arm to have a larger weight due to the larger weight of the metal housing, thus affecting the balance of the C-arm system. In addition, the shape of the metal housing is relatively simple, making the existing mobile X-ray machines often have a poor appearance. Summary of the Invention

[0005] The purpose of the present invention is to provide a ray detection device and a C-arm system. One of its purposes is to solve the problem that the balance of the C-arm system is affected due to the large weight of the housing corresponding to the flat panel detector of the C-arm system. Another purpose is to solve the problem that the C-arm system has a poor appearance when the housing corresponding to the flat panel detector of the C-arm system is a metal housing.

[0006] To solve the above technical problems, based on one aspect of the present invention, the present invention provides a ray detection device applied to a C-arm system, which includes:

[0007] A first base body, which includes a first base shell;

[0008] A second base body, which includes a second base shell assembled with the first base shell, and the material density of the second base shell is less than that of the first base shell;

[0009] A flat panel detector, which is installed on the second base shell, and the projection of the flat panel detector along its own vertical direction is entirely within the range of the second base shell.

[0010] Optionally, the first base body further includes a first substrate; the first base shell has a concave portion, the first substrate is disposed at the opening position of the concave portion, and the first substrate and the first base shell cooperate to form a socket for the C-arm to extend into the concave portion from the socket.

[0011] Optionally, the first base shell has a concave portion; the ray detection device further includes a third base body, the third base body is plate-shaped, and the third base body is fixed inside the concave portion and is used to connect the C-arm and the first base body.

[0012] Optionally, the second base shell includes a shell body and at least one cover detachably connected to the shell body, the shell body is provided with at least one window penetrating the side wall, and the window corresponds to and is adapted to the cover one by one.

[0013] Optionally, the second base body further includes at least two laser assemblies installed inside the second base shell, the laser assembly includes a laser lamp, and the laser lamp of at least one of the laser assemblies is inclined towards the center of the flat panel detector.

[0014] Optionally, the laser assembly further includes a mounting structure and a clamping structure connected to each other; the mounting structure is connected to the second base shell; the clamping structure is used to clamp the laser lamp.

[0015] Optionally, the clamping structure includes two clamping parts arranged relatively spaced apart, an adjustment screw and an adjustment block; at least one of the clamping parts can form at least one motion conversion combination with the adjustment block; the laser lamp is located between the two clamping parts; the adjustment screw rotates to drive the adjustment block to move along the axial direction of the adjustment screw; the motion conversion combination converts the movement of the adjustment block into the relative movement of the two clamping parts to adjust the clamping degree of the two clamping parts on the laser lamp.

[0016] Optionally, the motion conversion combination includes a first inclined surface provided on the clamping part and a second inclined surface provided on the adjustment block, the first inclined surface and the second inclined surface are both arranged at an angle to the axial direction of the adjustment screw, and the first inclined surface and the second inclined surface are adapted to each other.

[0017] Optionally, the second base further includes a weight component installed inside the second base housing, and the weight component is used to adjust the weight of the second base.

[0018] Optionally, the ray detection device further includes a handle, and the handle is fixedly installed on the first base housing or the second base housing; alternatively, a part of the handle is fixedly installed on the first base housing, and another part of the handle is fixedly installed on the second base housing; the handle is a cast aluminum part.

[0019] Based on another aspect of the present invention, the present invention further provides an C-arm system, which includes:

[0020] An C-arm having opposite ends;

[0021] A ray source assembly disposed at one end of the C-arm;

[0022] A ray detection device, which includes a base and a flat panel detector, the upper part of the base is connected to the other end of the C-arm, the flat panel detector is disposed at the lower part of the base, and at least part of the ray source assembly and the flat panel detector are aligned;

[0023] Wherein, the material density of the upper part of the base is greater than the material density of the lower part of the base, and the ray detection device, the C-arm and the ray source assembly cooperate to form a balanced body.

[0024] Optionally, the upper part of the base is a first base, and the first base includes a first base housing; the lower part of the base is a second base, and the second base includes a second base housing assembled with the first base housing.

[0025] In summary, in the ray detection device and the C-arm system provided by the present invention, the ray detection device includes a first base, a second base and a flat panel detector; the first base includes a first base housing; the second base includes a second base housing assembled with the first base housing, and the material density of the second base housing is less than that of the first base housing; the flat panel detector is installed on the second base housing, and the projection of the flat panel detector along its own vertical direction is within the range of the second base housing. The C-arm system includes an C-arm, a ray source assembly and a ray detection device. The ray source assembly is installed at one end of the C-arm. The ray detection device includes a base and a flat panel detector. The upper part of the base is connected to the other end of the C-arm. The flat panel detector is installed at the lower part of the base, and at least part of the ray source assembly and the flat panel detector of the ray detection device are aligned; wherein, the material density of the upper part of the base is greater than the material density of the lower part of the base, and the ray detection device, the C-arm and the ray source assembly cooperate to form a balanced body.

[0026] In the first aspect, the material density of the first base shell is greater than that of the second base shell, that is, the material of the first base shell is different from that of the second base shell, and the density of the first base shell is greater than that of the second base shell, so that the mass of the first base shell per unit volume is greater than that of the second base shell. Compared with the plastic or metal housing in the prior art, the present invention is conducive to balancing the weight of the end of the C-arm provided with the flat panel detector through the cooperation of the first base shell and the second base shell, so that the volume of the housing of the ray detection device will not be too large or too small to affect the protection range of the flat panel detector. For example, the first base shell is a steel casting, which can be formed by investment casting process, and can ensure the weight balance between the end of the C-arm provided with the ray source assembly and the end provided with the flat panel detector, reducing the subsequent additional processing of the first base shell, thereby reducing the processing cost; the second base shell is an aluminum casting, which can be formed by low pressure casting. In this way, not only can the complex appearance surface be cast to improve the appearance of the C-arm system, but also the weight of the end of the C-arm provided with the flat panel detector can be reduced compared with the metal housing, so that the cooperation of the steel casting and the aluminum casting is balanced with the end of the C-arm provided with the ray source assembly. In addition, the material density of the aluminum casting is greater than that of the steel casting, which can make the steel casting have a larger spatial volume range along the plane of the flat panel detector, thereby increasing the protection range.

[0027] In the second aspect, it is pre-configured so that the first base shell and the second base shell cooperate to balance the C-arm system, and the shape and volume of the second base shell are designed so that the projection of the flat panel detector along its vertical direction is within the range of the second base shell, which can ensure that when the C-arm drives the flat panel detector to move within the space range, the flat panel detector will not be directly collided by external objects.

[0028] In the third aspect, after the first base shell and the second base shell are assembled with each other and the ray detection device is matched with the flat panel detector, the ray detection device, the C-arm and the ray source assembly cooperate to form a balanced body, so that the flat panel detector and the ray source assembly are in a state of indifferent equilibrium when moving with the C-arm within the space range. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Those of ordinary skill in the art should understand that the provided drawings are used to better understand the present invention and do not constitute any limitation to the scope of the present invention. Among them:

[0030] Figure 1 is a schematic diagram of a C-arm system according to an embodiment of the present invention;

[0031] Figure 2 is an exploded view of a ray detection device according to an embodiment of the present invention;

[0032] Figure 3 is a schematic diagram of a flat panel detector according to an embodiment of the present invention;

[0033] Figure 4Schematic diagram of the first base body according to an embodiment of the present invention;

[0034] Figure 5 Schematic diagram of the handle according to an embodiment of the present invention;

[0035] Figure 6 Schematic diagram of the third base body according to an embodiment of the present invention;

[0036] Figure 7 Exploded view of the second base body according to an embodiment of the present invention;

[0037] Figure 8 Schematic diagram of the laser assembly according to an embodiment of the present invention.

[0038] In the drawings:

[0039] 10 - First base body; 11 - First base shell; 110 - Concave portion; 12 - First base plate;

[0040] 20 - Second base body; 21 - Second base shell; 211 - Shell body; 2111 - Window opening; 2112 - Through - hole area; 212 - Cover; 22 - Laser assembly; 221 - Laser lamp; 222 - Mounting structure; 2221 - First sheet metal part; 22210 - Mounting hole; 2222 - Second sheet metal part; 223 - Clamping structure; 2231 - Lamp holder; 22310 - Clamping part; 2232 - Adjusting screw; 2233 - Adjusting block; 23 - Weight component; P - Motion conversion combination; P1 - First inclined surface; P2 - Second inclined surface;

[0041] 30 - Flat panel detector; 40 - C - arm; 50 - Third base body; 60 - Handle; 70 - Radiation source assembly;

[0042] 81 - First pin; 82 - Second pin; 83 - First screw; 84 - Second screw; 85 - Third screw; 86 - Fourth screw; 87 - Fifth screw; 88 - Sixth screw; 89 - Step screw;

[0043] 91 - First adapter plate; 92 - Second adapter plate. Detailed implementation manners

[0044] To make the objectives, advantages and features of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the accompanying drawings are in a very simplified form and not drawn to scale, only for facilitating and clearly assisting in explaining the objectives of the embodiments of the present invention. In addition, the structures shown in the drawings are often part of the actual structures. In particular, the focus points to be shown in each drawing are different, and sometimes different scales are used.

[0045] As used in the present invention, the singular forms "a", "an" and "the" include plural referents, the term "or" is generally used in the sense of "and / or", the term "several" is generally used in the sense of "at least one", the term "at least two" is generally used in the sense of "two or more". In addition, the terms "first", "second", "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or at least two of such features. "One end" and "the other end", as well as "proximal end" and "distal end" generally refer to two corresponding parts, which include not only the endpoints. The terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two components or the interaction relationship between two components. In addition, as used in the present invention, when one component is disposed on another component, it generally only indicates that there is a connection, coupling, cooperation or transmission relationship between the two components, and the two components may be directly or indirectly connected, coupled, cooperated or transmitted through an intermediate component, rather than being construed as indicating or implying the spatial position relationship between the two components, that is, one component may be inside, outside, above, below or on one side of the other component in any orientation, unless otherwise explicitly specified in the content. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] An embodiment of the present invention provides a ray detection device and a C-arm system. One of the purposes is to solve the problem that the cover corresponding to the flat panel detector of the C-arm system affects the balance of the C-arm system due to its large weight. Another purpose is to solve the problem that when the cover corresponding to the flat panel detector of the C-arm system is a metal cover, the C-arm system has a poor appearance.

[0047] The following will describe the C-arm system and the ray detection device of the present invention in detail with reference to the accompanying drawings.

[0048] Figure 1 is a schematic diagram of a C-arm system according to an embodiment of the present invention. As Figure 1As shown, an embodiment of the present invention provides a C-arm system. The C-arm system includes a C-arm 40, a radiation source assembly 70, and a radiation detection device. Further, the radiation detection device further includes a flat panel detector 30. The radiation source assembly 70 and the radiation detection device are respectively disposed at two ends of the C-arm 40, and at least a part of the radiation source assembly 70 and the flat panel detector 30 of the radiation detection device are aligned with each other. The connection direction of the two ends of the C-arm 40 is perpendicular to the flat panel detector 30.

[0049] The radiation source assembly 70 is disposed at one end of the C-arm 40, and the flat panel detector 30 is disposed at the other end of the C-arm 40 along with the radiation detection device. It can be understood that the radiation source assembly 70 is a device that can emit radiation (such as X-rays, γ-rays, or electron beams, etc.), and the flat panel detector 30 is a device that can receive the radiation emitted by the radiation source assembly 70. Through the cooperation of the radiation source assembly 70 and the flat panel detector 30, operations such as medical examinations or treatments can be achieved. In one embodiment, the radiation source assembly 70 can emit X-rays, and the imaging plane of the flat panel detector 30 receives the X-rays. The C-arm system can be applied to a mobile X-ray machine.

[0050] Figure 2 is an exploded view of the radiation detection device according to an embodiment of the present invention. Refer to Figure 1 and Figure 2, Further, the ray detection device includes a first base body 10, a second base body 20, and a flat panel detector 30. Among them, the first base body 10 includes a first base shell 11, the second base body 20 includes a second base shell 21, and the material density of the second base shell 21 is less than that of the first base shell 11. That is, the materials of the first base shell 11 and the second base shell 21 are different, and the mass of the first base shell 11 per unit volume is greater than that of the second base shell 21. The flat panel detector 30 is installed on the second base shell 21 and is installed at the end of the C-arm 40 through the cooperation of the second base shell 21 and the first base shell 11. Compared with the plastic housing or metal housing in the prior art, the present invention is beneficial to balance the weight of the end of the C-arm provided with the flat panel detector through the cooperation of the first base shell 11 and the second base shell 21, so that the volume of the housing of the ray detection device will not be too large or too small to affect the protection range of the flat panel detector. Further, the hardness of the first base shell 11 is greater than that of the second base shell 21. By way of example, the first base shell 11 is a cast steel part. For example, the first base shell 11 can be formed by investment casting, so as to ensure the weight balance between the end of the C-arm 40 provided with the ray source assembly 70 and the end provided with the flat panel detector 30, reduce the subsequent additional processing of the first base shell 11, and thus reduce the processing cost; the second base shell 21 is a cast aluminum part, and at least a part of the second base shell 21 can be formed by low-pressure casting, so that not only can a complex-shaped outer surface be cast to improve the appearance of the end of the C-arm system provided with the flat panel detector 30, but also the weight of the end of the C-arm 40 provided with the flat panel detector 30 can be reduced compared with the traditional metal housing. For the housing traditionally applied to the flat panel detector, it is usually a metal shell or a plastic shell. The material density of the metal shell is relatively large, and in order to balance the C-arm system, the volume design is relatively small. The material density of the plastic shell is relatively small, and in order to balance the C-arm system, the volume design is relatively large. The single-designed metal shell and plastic shell in the prior art cannot well balance the C-arm system. Moreover, in the present application, the first base shell 11 and the second base shell 21 with different material densities are used. Further, for example, it can be the cooperation of a cast steel part and a cast aluminum part. The cast steel part can increase the weight of the end of the C-arm 40 provided with the flat panel detector and reduce the volume of the overall housing compared with a single plastic shell. The cast aluminum part can reduce the weight of the end of the C-arm provided with the flat panel detector 30 and increase the space volume of the housing compared with the existing metal shell. Further, it can be understood as increasing the space range of the second base shell 21 in the plane direction of the flat panel detector 30, thereby increasing the protection range of the second base shell for the flat panel detector 30. In addition, the cooperation of the cast steel part and the cast aluminum part can better make the C-arm system reach a state of indifferent equilibrium than a single metal shell and plastic shell, that is, the ray detection device, the C-arm, and the ray source assembly cooperate to form a balanced body. In some other embodiments, the second base shell 21 can also be a plastic shell or a carbon fiber shell.The flat panel detector 30 is installed on the second base shell 21 and can be pre-configured to enable the first base shell 11 and the second base shell 21 to cooperate to balance the C-arm system. The shape and volume of the second base shell 21 are designed so that the projection of the flat panel detector 30 along its own vertical direction is within the range of the second base shell 21, that is, the projection of the flat panel detector 30 along its own vertical direction does not exceed the second base shell 21 (including the case where the projection of the flat panel detector 30 along its own vertical direction just coincides with the outer contour of the second base shell 21). The second base shell 21 can cover the flat panel detector 30 along the vertical direction of the flat panel detector 30. In this way, it can be ensured that when the flat panel detector 30 moves with the C-arm 40 within the spatial range, the flat panel detector 30 will not be directly collided by external objects. In addition, after the ray detection device is loaded onto the C-arm 40, the flat panel detector 30 is closer to the ray source assembly 70 than the first base body 10 and the second base body 20, avoiding other structural components between the flat panel detector 30 and the ray source assembly 70 that may affect ray imaging. Regarding the movement of the flat panel detector 30 with the C-arm 40 within the spatial range, refer to... Figure 1 , for example, the flat panel detector 30 can rotate with the C-arm 40 around the reference line A, or the flat panel detector 30 can move in a circular motion along the direction of the reference line B with the C-arm 40, or the flat panel detector 30 can rotate with the C-arm 40 around the reference line C.

[0051] It should be noted that if the material density of the second base shell 21 is greater than that of the first base shell 11, on the one hand, the spatial volume of the second base shell 21 will be smaller, which will reduce the spatial range of the second base shell 21 in the plane direction of the flat panel detector 30, and may lead to an insufficient protection range of the second base shell 21 for the flat panel detector 30, making it vulnerable to collision during the movement of the flat panel detector 30 with the C-arm. On the other hand, the flat panel detector 30 is installed on the second base shell 21, and the second base shell 21 is connected to the C-arm through the first base shell 11. If the material density of the second base shell 21 is greater than that of the first base shell 11, the first base shell 11 with a smaller material density will bear the force exerted by the second base shell 21 with a larger material density, and the first base shell 11 is prone to damage or deformation, and the connection strength and connection stability will inevitably be weakened. Therefore, in this embodiment, the material density of the first base shell 11 is configured to be greater than that of the second base shell 21.

[0052] Figure 3 is a schematic diagram of a flat panel detector according to an embodiment of the present invention. Refer to Figure 3, regarding the specific manner in which the flat panel detector 30 is mounted on the second base shell 21, for example, the flat panel detector 30 is fixedly connected to the second base shell 21 through two first adapter plates 91, a plurality of first pins 81, and a plurality of first screws 83. Specifically, the two first adapter plates 91 are symmetrically arranged. The first adapter plate 91 is fixed to the flat panel detector 30 through a part of the first screws 83. The first adapter plate 91 is positioned on the second base shell 21 through the first pins 81. The first adapter plate 91 is fixedly connected to one side of the second base shell 21 facing the radiation source assembly 70 through another part of the first screws 83, thereby realizing the fixed installation of the flat panel detector 30 and the second base shell 21.

[0053] Figure 4 is a schematic diagram of the first base body of an embodiment of the present invention. Figure 6 is a schematic diagram of the third base body of an embodiment of the present invention. Refer to Figure 4 , the first base shell 11 has a concave portion 110. The first substrate 12 is disposed at the opening position of the concave portion 110, and the first substrate 12 and the first base shell 11 cooperate to form a socket for the C-shaped arm 40 to extend into the concave portion (110) from the socket. Further, the concave portion 110 at least penetrates through one end of the first base shell 11 facing the radiation source assembly 70, facilitating the cables in the C-shaped arm 40 to enter the second base shell 21 from the concave portion 110 and preventing the cables from being exposed outside the entire device. Refer to Figure 6 , the radiation detection device further includes a third base body 50. The third base body 50 is plate-shaped. The third base body 50 is fixed inside the concave portion 110 and is used to connect the C-shaped arm 40 and the first base body 10, that is, one side of the third base body 50 along its vertical direction is fixed to the concave portion 110, and the other side of the third base body 50 along its vertical direction is used to fixedly connect to one end of the C-shaped arm 40. Further, after the first base shell 11 is connected to the C-shaped arm 40 through the third base body 50, the first substrate 12 is disposed at the opening of the concave portion 110, and the first substrate 12 and the concave portion 110 form a socket, that is, the first substrate 12 covers a part of the opening of the concave portion 110, and the remaining part of the opening serves as a socket for the C-shaped arm 40 to extend in. The first substrate 12 covering a part of the opening of the concave portion 110 can cover the cables, which is beneficial to beautifying the appearance.

[0054] Regarding the connection manner of the third base body 50 with the second base shell 21 and the C-shaped arm 40, refer to Figure 6, the third base 50 is positioned relative to the C-shaped arm 40 through a part of the second pins 82, and is positioned in the concave portion 110 of the first base shell 11 through another part of the second pins 82. The third base 50 is fixed to a designated position of the C-shaped arm 40 through a part of the second screws 84, and is fixed to the concave portion 110 through another part of the second screws 84. By introducing the third base 50 and the cooperation mode of the second pins 82 and the second screws 84, the number of openings in the first base shell 11 can be reduced, which is beneficial to the aesthetics of the appearance.

[0055] Regarding the installation method of the first substrate 12 and the first base shell 11, refer to Figure 4 , two second adapter plates 92 are respectively fixed to two opposite inner side surfaces of the concave portion 110 through at least two third screws 85, and the first substrate 12 is fixed to the second adapter plates 92 through at least two fourth screws 86. Thus, the connection between the first substrate 12 and the first base shell 11 is realized through the second adapter plates 92, and further, a part of the concave portion 110 is covered by the first substrate 12.

[0056] Figure 5 is a schematic diagram of the handle of an embodiment of the present invention. Refer to Figure 5 , the ray detection device further includes a handle 60 made of a cast aluminum part, which can be formed by gravity casting process, for example. The handle 60 is fixedly installed on the first base shell 11 or the second base shell 21. Alternatively, a part of the handle 60 is fixedly installed on the first base shell 11, and another part of the handle 60 is fixedly installed on the second base shell 21, which can enhance the connection strength between the first base shell 11 and the second base shell 21. The setting of the handle 60 facilitates the operator to hold the handle 60 and thus operate the C-shaped arm system to move within the space range. In this embodiment, the handle 60 is generally U-shaped, and the two ends of the U are fixed to two opposite outer side surfaces of the first base shell 11 by screws. Specifically, the handle 60 is fixed to the first base shell 11 by two fifth screws 87 and two stepped screws 89. The two fifth screws 87 and the two stepped screws 89 are arranged in a rectangle. The two fifth screws 87 are located at two opposite corners of the rectangle, and the two stepped screws 89 are located at the other two opposite corners of the rectangle. The non-threaded section of the stepped screw 89 is connected to the first base shell 11 in a shaft-hole fit manner.

[0057] Figure 7 is an exploded view of the second base of an embodiment of the present invention. Refer to Figure 7, the second base housing 21 includes a housing body 211 and at least one cover 212 detachably connected to the housing body 211 (for example, detachably connected by screws). The housing body 211 is provided with at least one window 2111 penetrating through the side wall, and the window 2111 corresponds to and is adapted to the cover 212 one by one. Preferably, the window 2111 is disposed on a surface of the second base housing 21 away from the flat panel detector 30. Actually, there are various cables in the second base housing 21. The cables supply power or transmit signals to other components inside the second base housing 21, and the cables can also supply power or transmit signals to the flat panel detector 30. Through the cooperation mode of the window 2111 and the cover 212, it is convenient for the operator to remove the cover 212 to observe the state of the cables, improving the serviceability of the device. The second base housing 21 is a cast aluminum part. Optionally, the cover 212 can be formed by gravity casting process, and the housing body 211 can be formed by low pressure casting.

[0058] Further, the housing body 211 is also provided with a through hole area 2112. The first base housing 11 is installed at the through hole area 2112 of the second base housing 21. After the cables extend from the C-shaped arm 40, they sequentially pass through the concave portion 110 and the through hole area 2112 and enter the interior of the second base housing 21, and finally are connected to other components (such as a laser lamp) inside the second base housing 21 and the flat panel detector 30.

[0059] Figure 8 is a schematic diagram of a laser assembly according to an embodiment of the present invention. Refer to Figure 7 and Figure 8 , the second base body 20 further includes at least two laser assemblies 22 installed inside the second base housing 21. The at least two laser assemblies 22 are arranged circumferentially along the flat panel detector 30 inside the second base housing 21. The laser assembly 22 includes a laser lamp 221. The laser lamp 221 of at least one of the laser assemblies 22 is inclined towards the center of the flat panel detector 30. It should be noted that specifically here, it means that the end of the laser lamp 221 emitting the laser line is inclined towards the central vertical line of the flat panel detector 30. Preferably, at least two laser lamps 221 are both inclined. In this way, the doctor can determine the part of the patient that needs to be X-rayed by the intersection of the laser lines emitted by the at least two laser lamps 221.

[0060] Further, the laser assembly 22 further includes a mounting structure 222 and a clamping structure 223 connected to each other. The mounting structure 222 is connected to the second base housing 21 and fixed inside the second base housing 21. The clamping structure 223 is used to clamp the laser lamp 221.

[0061] In a specific embodiment, the mounting structure 222 is a sheet metal part, which includes a first sheet metal part 2221 and a second sheet metal part 2222 vertically connected to the first sheet metal part 2221. The first sheet metal part 2221 is provided with at least two through mounting holes 22210 for the sixth screw 88 to pass through and be fixed to the second base shell 21. The mounting structure 222 is mounted and fixed to the inside of the second base shell 21 through the cooperation between the mounting holes 22210 and the sixth screw 88. The second sheet metal part 2222 is connected to the clamping structure 223. For example, the clamping structure 223 includes a lamp holder 2231, and the lamp holder 2231 is mounted on the second sheet metal part 2222. Preferably, the mounting holes 22210 are long holes, and the long axis directions of at least two long holes are parallel to each other. In this way, the mounting structure 222 and the clamping structure 223 can be moved by moving the sixth screw 88 in the long axis direction of the long hole, so as to adjust the position of the laser lamp 221. The long hole can specifically be an oblong hole, an elliptical hole or a rectangular hole, and the present invention is not limited thereto.

[0062] In an embodiment, the clamping structure 223 includes two clamping parts 22310 arranged at intervals, an adjusting screw 2232 and an adjusting block 2233. For example, the clamping structure 223 includes a lamp holder 2231, and two clamping parts 22310 spaced apart can be formed on the lamp holder 2231. The adjusting block 2233 abuts against the clamping part 22310, and at least one of the clamping parts 22310 can form at least one motion conversion combination P with the adjusting block 2233, that is, one of the clamping parts 22310 forms a motion conversion combination P with the adjusting block 2233, or the two clamping parts 22310 respectively form a motion conversion combination P with the adjusting block 2233. The laser lamp 221 is located between the two clamping parts 22310. The adjusting screw 2232 passes through the adjusting block 2233 and is threadedly connected to the adjusting block 2233. The adjusting screw 2232 rotates to drive the adjusting block 2233 to move along the axial direction of the adjusting screw 2232, so as to Figure 8For example, when the adjustment screw 2232 rotates clockwise, it drives the adjustment block 2233 to move upward, and when the adjustment screw 2232 rotates counterclockwise, it drives the adjustment block 2233 to move downward. The motion conversion assembly P converts the movement of the adjustment block 2233 into the relative movement of the two clamping portions 22310 to adjust the clamping degree of the two clamping portions 22310 on the laser lamp 221, so as to clamp or loosen the laser lamp 221. Further, the adjustment screw 2232 can be located between the two clamping portions 22310 or outside the range of the two clamping portions 22310. Taking the adjustment screw 2232 as a reference, it can be understood that when a motion conversion assembly P is formed, the clamping portion 22310 corresponding to the motion conversion assembly P moves closer to or away from the other clamping portion 22310 alone, that is, the clamping portion 22310 corresponding to the motion conversion assembly P is in a moving state relative to the adjustment screw 2232 (and in the direction perpendicular to the adjustment screw 2232), and the other clamping portion 22310 is in a stationary state relative to the adjustment screw 2232 (and in the direction perpendicular to the adjustment screw 2232); when two motion conversion assemblies P are formed, the two clamping portions 22310 move closer to or away from each other, that is, the two clamping portions 22310 are both in a moving state relative to the adjustment screw 2232 (and in the direction perpendicular to the adjustment screw 2232).

[0063] Further, the motion conversion assembly P includes a first inclined surface P1 provided on the clamping portion 22310 and a second inclined surface P2 provided on the adjustment block 2233. The first inclined surface P1 and the second inclined surface P2 are both arranged at an angle to the axial direction of the adjustment screw 2232 (neither the first inclined surface P1 nor the second inclined surface P2 is perpendicular or parallel to the axial direction of the adjustment screw 2232), and the first inclined surface P1 and the second inclined surface P2 are mutually adapted, that is, the first inclined surface and the second inclined surface are parallel and in contact with each other. By driving the adjustment block 2233 to move through the adjustment screw 2232, at least part of the movement amount of the adjustment block 2233 is converted into a movement component in the direction perpendicular to the adjustment screw 2232 through the cooperation of the first inclined surface and the second inclined surface, so as to drive the corresponding clamping portion 22310 to move.

[0064] Preferably, the second base 20 further includes a weight component 23 installed inside the second base shell 21. The weight component 23 is used to adjust the weight of the second base 20 to further accurately adjust the weight of the ray detection device, so as to achieve a state of neutral equilibrium when the flat panel detector 30 and the ray source assembly 70 move with the C-shaped arm 40 within the space range. In one embodiment, the weight component 23 is a sheet metal part, including multiple metal foil sheets, and the weight of the weight component 23 is adjusted by increasing or decreasing the number of metal foil sheets, so as to adjust the weight of the ray detection device.

[0065] This embodiment also provides a C-arm system, which includes a C-arm 40, a radiation source assembly 70, and a radiation detection device. The C-arm 40 has opposite ends; the radiation source assembly 70 is disposed at one end of the C-arm 40; the radiation detection device includes a base body and a flat panel detector 30. The upper part of the base body is connected to the other end of the C-arm 40, the flat panel detector 30 is disposed at the lower part of the base body, and at least part of the radiation source assembly 70 and the flat panel detector 30 are aligned; wherein, the material density of the upper part of the base body is greater than the material density of the lower part of the base body, and the radiation detection device, the C-arm 40, and the radiation source assembly 70 cooperate to form a balanced body.

[0066] Further, the upper part of the base body is a first base body 10, and the first base body 10 includes a first base shell 11; the lower part of the base body is a second base body 20, and the second base body 20 includes a second base shell 21 assembled with the first base shell 11. For example, the first base shell 10 is a cast steel part, and the second base shell 21 is a cast aluminum part.

[0067] It should be noted that those skilled in the art can refer to the description and application of the radiation detection device described above to understand the C-arm system of this embodiment, and details will not be elaborated here.

[0068] In summary, in the ray detection device and C-arm system provided by the present invention, the ray detection device includes a first base body, a second base body, and a flat panel detector; the first base body includes a first base shell; the second base body includes a second base shell assembled with the first base shell, and the material density of the second base shell is less than that of the first base shell; the flat panel detector is installed on the second base shell, and the projection of the flat panel detector along its vertical direction is within the range of the second base shell. The C-arm system includes a C-arm, a ray source assembly, and a ray detection device. The ray source assembly is installed at one end of the C-arm. The ray detection device includes a base body and a flat panel detector. The upper part of the base body is connected to the other end of the C-arm, and the flat panel detector is installed at the lower part of the base body. At least part of the ray source assembly and the flat panel detector of the ray detection device are aligned; wherein, the material density of the upper part of the base body is greater than that of the lower part of the base body, and the ray detection device, the C-arm, and the ray source assembly cooperate to form a balanced body. In the first aspect, the material density of the first base shell is greater than that of the second base shell, that is, the material of the first base shell is different from that of the second base shell, and the density of the first base shell is greater than that of the second base shell, so that the mass of the first base shell per unit volume is greater than that of the second base shell. Compared with the plastic housing or metal housing in the prior art, the present invention is beneficial to balance the weight of the end of the C-arm provided with the flat panel detector through the cooperation of the first base shell and the second base shell, so that the volume of the housing of the ray detection device will not be too large or too small to affect the protection range of the flat panel detector. In the second aspect, it is pre-configured so that the first base shell and the second base shell cooperate to balance the C-arm system, and the shape and volume of the second base shell are designed so that the projection of the flat panel detector along its vertical direction is within the range of the second base shell, which can ensure that when the C-arm drives the flat panel detector to move within the space range, the flat panel detector will not be directly collided by external objects. In the third aspect, after the first base shell and the second base shell are assembled with each other and the ray detection device is matched with the flat panel detector, the ray detection device, the C-arm, and the ray source assembly cooperate to form a balanced body, so that the flat panel detector and the ray source assembly are in a state of indifferent equilibrium when moving within the space range with the C-arm.

[0069] The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the art of the present invention based on the above disclosure belong to the protection scope of the technical solution of the present invention.

Claims

1. A ray detection device, which is applied to a C-arm system, is characterized in that Comprising: A first base body (10), which includes a first base shell (11); A second base body (20), which includes a second base shell (21) assembled with the first base shell (11), and the material density of the second base shell (21) is less than that of the first base shell (11); A flat panel detector (30), which is mounted on the second base shell (21), and the projection of the flat panel detector (30) along its own vertical direction is within the range of the second base shell (21); The second base body (20) further includes at least two laser assemblies (22) installed inside the second base shell (21), the laser assembly (22) includes a laser lamp (221) and a clamping structure (223), the clamping structure (223) is used to clamp the laser lamp (221), and the laser lamp (221) of at least one of the laser assemblies (22) is inclined towards the center of the flat panel detector (30); The clamping structure (223) includes two clamping parts (22310) arranged at a relative interval, an adjusting screw (2232) and an adjusting block (2233); at least one of the clamping parts (22310) can form at least one motion conversion combination (P) with the adjusting block (2233); the laser lamp (221) is located between the two clamping parts (22310); the adjusting screw (2232) rotates to drive the adjusting block (2233) to move along the axial direction of the adjusting screw (2232); the motion conversion combination (P) converts the movement of the adjusting block (2233) into the relative movement of the two clamping parts (22310) to adjust the clamping degree of the two clamping parts (22310) on the laser lamp (221).

2. The ray detection device according to claim 1, characterized in that, The first base body (10) further includes a first base plate (12); the first base shell (11) has a concave part (110), the first base plate (12) is arranged at the opening position of the concave part (110), and the first base plate (12) and the first base shell (11) cooperate to form a socket for the C-shaped arm (40) to extend into the concave part (110) from the socket.

3. The ray detection device according to claim 1, characterized in that, The first base shell (11) has a concave part (110); the ray detection device further includes a plate-shaped third base body (50), the third base body (50) is fixed inside the concave part (110) and is used to connect the C-shaped arm (40) and the first base body (10).

4. The ray detection device according to claim 1, characterized in that, The second base shell (21) includes a shell body (211) and at least one cover (212) detachably connected to the shell body (211), the shell body (211) is provided with at least one window (2111) penetrating the side wall, and the window (2111) corresponds to and is mutually adapted to the cover (212).

5. The ray detection device according to claim 1, characterized in that, The laser assembly (22) further includes a mounting structure (222) connected to the clamping structure (223); the mounting structure (222) is connected to the second base shell (21).

6. The ray detection device according to claim 1, characterized in that The second base body (20) further includes a weight component (23) installed inside the second base shell (21), and the weight component (23) is used to adjust the weight of the second base body (20).

7. A C-arm system, characterized in that, Comprising: A C-shaped arm (40) having opposite ends; A ray source assembly (70) disposed at one end of the C-shaped arm (40); A ray detection device, which includes a base body and a flat panel detector (30). The upper part of the base body is connected to the other end of the C-shaped arm (40), the flat panel detector (30) is disposed at the lower part of the base body, and at least part of the ray source assembly (70) and the flat panel detector (30) are aligned with each other; Wherein, the density of the material forming the upper part of the base body is greater than the density of the material forming the lower part of the base body, and the ray detection device, the C-shaped arm (40) and the ray source assembly (70) cooperate with each other to form a balanced body; The lower part of the base body is a second base body (20), and the second base body (20) includes a second base shell (21) and at least two laser assemblies (22) installed inside the second base shell (21). The laser assembly (22) includes a laser lamp (221) and a clamping structure (223), and the clamping structure (223) is used to clamp the laser lamp (221). The laser lamp (221) of at least one of the laser assemblies (22) is inclined towards the center of the flat panel detector (30); The clamping structure (223) includes two clamping parts (22310) arranged relatively and spaced apart, an adjustment screw (2232) and an adjustment block (2233); at least one of the clamping parts (22310) can form at least one motion conversion combination (P) with the adjustment block (2233); the laser lamp (221) is located between the two clamping parts (22310); the adjustment screw (2232) rotates to drive the adjustment block (2233) to move along the axial direction of the adjustment screw (2232); the motion conversion combination (P) converts the movement of the adjustment block (2233) into the relative movement of the two clamping parts (22310) to adjust the clamping degree of the two clamping parts (22310) on the laser lamp (221).

8. The C-arm system according to claim 7, wherein The upper part of the base body is a first base body (10), and the first base body (10) includes a first base shell (11); the first base shell (11) is assembled with the second base shell (21).

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