CN219557339U - X-ray photographing stand and X-ray diagnosis system - Google Patents
X-ray photographing stand and X-ray diagnosis system Download PDFInfo
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- CN219557339U CN219557339U CN202223141736.XU CN202223141736U CN219557339U CN 219557339 U CN219557339 U CN 219557339U CN 202223141736 U CN202223141736 U CN 202223141736U CN 219557339 U CN219557339 U CN 219557339U
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Abstract
The utility model provides an X-ray photographing stand and an X-ray diagnosis system. An X-ray imaging gantry according to an embodiment includes: a fixing part; and a rotating part including: a rotating part member; a bearing mounting surface; a cylindrical wall protruding continuously from the outer periphery of the bearing mounting surface, the cylindrical wall accommodating a rotating member inside; a reinforcing ring formed on the bearing mounting surface and protruding at least in the direction of the center of gravity of the rotating part member with reference to the bearing mounting surface; and a reinforcing rib connecting the bearing mounting surface, the reinforcing ring and the cylindrical wall, wherein the reinforcing rib includes at least a first reinforcing rib formed on both sides of the X-ray generating section and a second reinforcing rib formed on both sides of the X-ray detecting section, and the reinforcing ring is continuous between at least the first reinforcing rib and the second reinforcing rib adjacent thereto. The utility model can prevent the rotating part from deforming during high-speed rotation.
Description
Technical Field
Embodiments of the present utility model relate to an X-ray imaging gantry and an X-ray diagnostic system.
Background
An X-ray diagnostic system is a device that converts uneven X-rays, which have penetrated a subject, into electrical signals by utilizing differences in absorption of the X-rays due to differences in density of the subject, and converts the signals into images reflecting the tissue structure inside the subject by calculation with a computer. An X-ray diagnosis system includes a bed for placing a subject thereon and an X-ray imaging gantry for generating X-rays. The X-ray imaging stand includes a rotating section on which an X-ray generating section and an X-ray detecting section are mounted, and a fixing section that rotatably supports the rotating section. The X-ray generating unit generates X-rays that are incident on the subject, and the X-ray detecting unit receives the X-rays that have penetrated the subject. The X-ray detector converts X-rays transmitted through a human body into an electrical signal to generate an image of a subject.
However, in the imaging process, the rotation unit including the X-ray generation unit and the X-ray detection unit is required to rotate around the subject and to image the subject. Since the centrifugal force is large when the rotating portion rotates, the rotating portion may be deformed by the centrifugal force. When the rotation portion is deformed, the relative positions between the X-ray generation portion and the X-ray detection portion deviate, and the resulting imaging quality is degraded.
Disclosure of Invention
The utility model provides an X-ray photographing stand capable of preventing a rotating part from deforming when rotating at a high speed and an X-ray diagnosis system with the X-ray photographing stand.
An X-ray imaging gantry according to an embodiment includes: a fixing part; and a rotating portion including: a rotating part component at least comprising an X-ray generating part and an X-ray detecting part; a bearing mounting surface on which a bearing rotatably supporting the rotating portion by the fixed portion is provided; a cylindrical wall protruding continuously from an outer periphery of the bearing mounting surface, the cylindrical wall accommodating the rotating member inside; a reinforcing ring formed on the bearing mounting surface, the reinforcing ring protruding at least in a direction toward a center of gravity of the rotating part member with respect to the bearing mounting surface; and a reinforcing rib connecting the bearing mounting surface, the reinforcing ring, and the cylindrical wall, wherein the reinforcing rib includes at least a first reinforcing rib formed on both sides of the X-ray generating section and a second reinforcing rib formed on both sides of the X-ray detecting section, and the reinforcing ring is continuous between at least the first reinforcing rib and the second reinforcing rib adjacent thereto.
An X-ray diagnostic system of another embodiment includes: a bed table; and the X-ray shooting stand.
According to the utility model, the reinforcing ring is formed on the bearing mounting surface in a manner of protruding towards at least the gravity center side of the rotating part component, so that the rigidity of the rotating part of the X-ray shooting stand is reinforced, the possibility of deformation of the rotating part during high-speed rotation is further reduced, the relative position between the X-ray generating part and the X-ray detecting part is not greatly deviated, and the final imaging quality is prevented from being reduced.
Drawings
FIG. 1 is a schematic diagram showing the structure of an X-ray diagnostic system according to the present utility model;
fig. 2 is a schematic diagram showing a structure of a rotating portion of an X-ray imaging gantry according to the related art;
fig. 3 is a schematic view showing a structure of a rotating unit of an X-ray imaging gantry according to a first embodiment of the present utility model;
fig. 4 is a schematic front view showing a rotating unit of an X-ray imaging stand according to a second embodiment of the present utility model;
fig. 5 is a schematic view showing a rear structure of a rotating portion of an X-ray imaging stand according to a second embodiment of the present utility model;
fig. 6 is a schematic diagram showing a structure of a rotating unit of an X-ray imaging gantry according to a third embodiment of the present utility model.
Detailed Description
Hereinafter, an embodiment of an X-ray imaging gantry and an X-ray diagnostic system according to the present utility model will be described with reference to the drawings.
For ease of illustration, coordinate axes are shown in the drawings, and the same structures are denoted by the same reference numerals. In addition, the structure may be appropriately enlarged, reduced, or omitted.
The front-rear direction of the X-ray diagnostic system is defined as the X-axis direction, the left-right direction of the X-ray diagnostic system is defined as the Z-axis direction, and the directions perpendicular to the Z-axis direction and the X-axis direction are defined as the Y-axis direction. The direction in which the X-axis arrow is directed is referred to as the front side (front), and the opposite side is referred to as the rear side (or rear). The direction in which the Z-axis arrow is directed is referred to as the left side (left side), and the opposite direction is referred to as the right side (right side). The direction in which the Y-axis arrow is directed is referred to as the upper side (upper side), and the opposite direction is referred to as the lower side (lower side). In the drawings, the structure is appropriately enlarged, reduced, or omitted for convenience of explanation. In order to clearly illustrate the X-ray imaging gantry and the X-ray diagnostic system according to the present utility model, components not directly related to the present utility model are omitted.
(first embodiment)
Fig. 1 is a schematic diagram showing the structure of an X-ray diagnostic system 1 according to the present utility model.
As shown in fig. 1, the X-ray diagnostic system 1 includes an X-ray imaging gantry 2, a bed 3 on which a subject to be X-ray imaged is placed, and the like. The X-ray diagnostic system 1 converts uneven X-rays, which have penetrated the subject, into electrical signals by utilizing differences in absorption of the X-rays due to differences in density of the subject, and converts the signals into images reflecting the tissue structure inside the subject by calculation with a computer. The X-ray diagnostic system 1 may be, for example, an X-ray CT apparatus used for medical diagnosis.
The X-ray imaging stand 2 is vertically fixed to a horizontal plane, and the X-ray imaging stand 2 includes a fixing portion 21, a rotating portion 22, and the like.
The fixed portion 21 is an upright frame extending from the ground, and the fixed portion 21 rotatably supports the rotating portion 22.
The rotating portion 22 is a frame (frame) having an opening formed in the center and having a cylindrical outer peripheral shape. The opening is a space for conveying the subject at the time of photographing. The opening penetrates from the front side to the rear side of the X-ray photographing stand 2. A plurality of devices such as an X-ray generating unit 231 and an X-ray detecting unit 232 are mounted and fixed to the rotating unit 22. The X-ray generating section 231 and the X-ray detecting section 232 are disposed opposite each other on the rotating section 22 with the opening as a center. The rotating unit 22 supports the X-ray generating unit 231 and the X-ray detecting unit 232 so that the X-ray generating unit 231 faces the X-ray detecting unit 232. The surface of the X-ray detecting section 232 and the X-ray generating section 231 are always perpendicular to each other.
The X-ray generation unit 231 generates an X-ray beam that spreads in both directions, that is, in a slice direction parallel to the body axis direction of the subject and a channel direction orthogonal to the slice direction, in an operating state. The X-ray generating section 231 includes, for example, an X-ray tube that generates X-rays, a wedge that adjusts the dose of the X-rays irradiated from the X-ray tube, and a collimator that reduces the irradiation range of the X-rays transmitted through the wedge. The X-ray generating section 231 passes the X-rays irradiated by the X-ray tube through the wedge and the collimator, and then passes through the subject to reach the X-ray detecting section 232.
The X-ray detector 232 detects X-rays passing through the subject and converts them into electrical signals corresponding to the X-ray dose. For example, the X-ray detecting section 232 has an X-ray detecting element row in which a plurality of X-ray detecting elements are arranged in the channel direction along one circular arc centered on the focal point of the X-ray generating section 231. The X-ray detection unit 232 has a structure in which a plurality of X-ray detection element rows are arranged in a slice direction orthogonal to the channel direction.
The bed 3 is a device for placing and moving an object to be X-ray imaged (scanned object). The top plate on the bed 3 is movable in the vertical direction (Y-axis direction) and the front-rear direction (X-axis direction).
Next, a structure of a rotating portion 22a of an X-ray imaging stand in the related art will be described with reference to fig. 2.
Fig. 2 is a schematic diagram showing a structure of a rotating portion 22a of an X-ray imaging gantry according to the related art.
In the prior art, as shown in fig. 2, the rotating portion 22a is formed in a cylindrical shape by a disk-shaped bearing mounting surface 24a and a cylindrical wall 25a rising from the edge of the bearing mounting surface 24a. A plurality of raised ribs 27a are formed on the bearing mounting surface 24a, and the ribs 27a connect the cylindrical wall 25a and the bearing mounting surface 24a. The X-ray generating section 231a is provided in the +y direction (upper side) of the rotating section 22a, and the X-ray detecting section 232a is provided in the-Y direction (lower side) of the rotating section 22a opposite to the X-ray generating section 231 a. In order to provide sufficient strength to the positions of the rotation section 22a where the X-ray generating section 231a and the X-ray detecting section 232a are provided, the reinforcing ribs 27a are generally formed on both sides of the X-ray generating section 231a and on both sides of the X-ray detecting section 232a.
In order to improve imaging quality and detection efficiency, there is a super-high-speed X-ray imaging stand in the prior art, in which the rotation speed of the rotating part has reached more than 0.25 s/r. In such an ultra-high-speed X-ray imaging gantry, the conventional structure is insufficient in rigidity for preventing the centrifugal force caused by the high-speed rotation from being deformed, and thus the rotating portion is deformed. When the rotating part is deformed, the relative position between the X-ray generating part and the X-ray detecting part is deviated, and the imaging quality is further affected.
Next, a structure of the rotating unit 22 of the X-ray imaging gantry 2 according to the first embodiment of the present utility model will be described with reference to fig. 3.
Fig. 3 is a schematic diagram showing a configuration of the rotating unit 22 of the X-ray imaging gantry 2 according to the first embodiment of the present utility model.
As shown in fig. 3, in the present embodiment, the rotating portion 22 includes a rotating portion member 23, a bearing mounting surface 24, a cylindrical wall 25, a reinforcing ring 26, and reinforcing ribs 27.
The rotating unit member 23 includes at least an X-ray generating unit 231 and an X-ray detecting unit 232, and the X-ray generating unit 231 generates X-rays to be irradiated onto the subject and the X-ray detecting unit 232 receives the X-rays passing through the subject. The X-ray generating section 231 is fixedly provided at one end of the rotating section 22 in the +y direction (upper side), and the X-ray detecting section 232 is fixedly provided at one end of the rotating section 22 in the-Y direction (lower side), and the X-ray generating section 231 and the X-ray detecting section 232 are fixedly provided so as to face each other. As the rotating unit 22 rotates, the X-ray generating unit 231 always faces the X-ray detecting unit 232.
The bearing mounting surface 24 is formed in a disk shape, and a bearing rotatably supporting the rotating portion 22 by the fixing portion 21 (shown in fig. 1) is provided on the bearing mounting surface 24, whereby the rotating portion 22 is rotatable about its own axis.
The cylindrical wall 25 protrudes continuously (rises in the +x direction) from the outer periphery of the bearing mounting surface 24, and the bearing mounting surface 24 and the cylindrical wall 25 together form the rotary portion 22 into a cylindrical shape. Inside the cylindrical wall 25, a rotating part member including an X-ray generating part 231, an X-ray detecting part 232, and the like is accommodated.
The reinforcing rib 27 is formed on the bearing mounting surface 24, and the reinforcing rib 27 is used to connect the cylindrical wall 25, the bearing mounting surface 24, and a reinforcing ring 26 described later. The reinforcing ribs 27 serve to increase the rigidity of the cylindrical rotating portion 22. The stiffener 27 includes at least a first stiffener 271 formed on both sides of the X-ray generating section 231 and a second stiffener 272 formed on both sides of the X-ray detecting section 232. The rigidity of the position of the rotating unit 22 where the X-ray generating unit 231 is provided can be increased by the first reinforcing rib 271, and the rigidity of the position of the rotating unit 22 where the X-ray detecting unit 232 is provided can be increased by the second reinforcing rib 272.
In order to prevent the relative position between the X-ray generating section 231 and the X-ray detecting section 232 from being greatly deviated due to deformation of the rotating section 22 rotating at a high speed, and the imaging quality from being degraded, in the present embodiment, the reinforcing ring 26 is further formed on the rotating section 22, and the reinforcing ring 26 is formed on the bearing mounting surface 24. In order to increase the rigidity of the rotating part 22 and ensure that the rotating part member 23 does not deviate from position, it is necessary to form the reinforcing ring 26 so as to protrude at least in the direction of the center of gravity of the rotating part member 23 with respect to the bearing attachment surface 24. That is, the reinforcing ring 26 is formed to protrude at least in the center-of-gravity side direction of the rotating part member 23. When the center of gravity side direction of the rotating member 23 is on the front side (+x direction side) of the bearing mounting surface 24, the reinforcing ring 26 protrudes toward at least the front side of the bearing mounting surface 24 with reference to the bearing mounting surface 24. When the center-of-gravity side direction of the rotating portion member 23 is on the rear side (-X direction side) of the bearing mounting surface 24, the reinforcing ring 26 protrudes toward at least the rear side of the bearing mounting surface 24 with reference to the bearing mounting surface 24. In addition, it is also necessary to ensure that the reinforcing ring 26 is continuous at least between the first reinforcing bead 271 and the second reinforcing bead 272 adjacent thereto.
As shown in fig. 3, in the first embodiment, the description is given by way of example with the direction of the center of gravity side of the rotating part member 23 on the rotating part 22 being the +x direction.
In the present embodiment, the reinforcing ring 26 includes a first reinforcing ring 261. The description will be made taking the direction of the center of gravity side of the rotating member 23 as the +x direction as an example, and therefore, the first reinforcing ring 261 is formed so as to protrude in the +x direction from the bearing mounting surface 24 with reference to the bearing mounting surface 24. The first reinforcing ring 261 is connected to the cylindrical wall 25 by the first reinforcing rib 271 and the second reinforcing rib 272. The first reinforcing ring 261 is divided into four segments, that is, a segment between two first reinforcing ribs 271, a segment between one first reinforcing rib 271 and a second reinforcing rib 272 adjacent thereto, a segment between another first reinforcing rib 271 and a second reinforcing rib 272 adjacent thereto, and a segment between two second reinforcing ribs 272, which are continuously formed to constitute an integral first reinforcing ring 261.
In the present embodiment, the first reinforcing ring 261 is continuous between the first reinforcing ribs 271 and the second reinforcing ribs 272 to form a closed ring, that is, the first reinforcing ring 261 forms a closed ring entirely inside the cylindrical wall 25 including the X-ray generating section 231 and the X-ray detecting section 232, so that the rigidity improving effect on the rotating section 22 is optimal.
The protruding height (length extending in the X-axis direction) of the reinforcing ring 26 can be adjusted according to the layout of the rotating part members 23 of the rotating part 22, but the higher the protruding height of the reinforcing ring 26 is, the better the reinforcing effect on the overall rigidity of the rotating part 22 is.
In addition, when the protruding height of the reinforcing ring 26 is high, and thus the X-rays emitted from the X-ray generating section 231 to the outside and the X-rays received by the X-ray detecting section 232 are blocked, a first opening 2611 for passing the X-rays may be formed in a region of the first reinforcing ring 261 between the two first reinforcing ribs 271, and a second opening 2612 for passing the X-rays may be formed in a region of the first reinforcing ring 261 between the two second reinforcing ribs 272. By forming the first and second openings 2611 and 2612, X-rays can pass freely.
The reinforcing ring 26 may be made of a metal such as iron or aluminum, or a resin material having a certain rigidity. The better the rigidity of the material forming the reinforcing ring 26, the better the reinforcing effect of the reinforcing ring 26 on the rigidity of the rotating portion 22.
When the bearing mounting surface 24, the cylindrical wall 25, and the reinforcing rib 27 of the rotating portion 22 are integrally formed by metal welding or integral casting, the reinforcing ring 26 may be integrally connected to the bearing mounting surface 24, the cylindrical wall 25, and the reinforcing rib 27 by welding or bolts. Alternatively, the reinforcing ring 26 may be integrally cast with the bearing mounting surface 24, the cylindrical wall 25, and the reinforcing ribs 27.
In this embodiment, the reinforcing ring is formed on the bearing mounting surface so as to protrude at least in the direction of the center of gravity of the rotating member, and the reinforcing ring is made continuous between at least the first reinforcing rib and the second reinforcing rib adjacent thereto, whereby the rigidity of the rotating portion of the X-ray imaging stand is reinforced, and further the possibility of deformation of the rotating portion during high-speed rotation is reduced, and the relative position between the X-ray generating portion and the X-ray detecting portion is prevented from being greatly deviated, thereby avoiding degradation of the final imaging quality.
(second embodiment)
Next, a configuration of the rotating unit 22 of the X-ray imaging gantry 2 according to a second embodiment of the present utility model will be described with reference to fig. 4 and 5.
The same parts as those of the first embodiment in this embodiment will not be described again. Only the different parts will be described. Other undescribed portions are the same as or equivalent to the first embodiment.
Fig. 4 is a schematic front view showing a structure of a rotating unit 22 of an X-ray imaging stand 2 according to a second embodiment of the present utility model.
Fig. 5 is a schematic diagram showing a rear structure of the rotating unit 22 of the X-ray imaging stand 2 according to the second embodiment of the present utility model.
As shown in fig. 4, in the present embodiment, the rotating unit 22 includes a rotating unit member 23, a bearing mounting surface 24, a cylindrical wall 25, a reinforcing ring 26, and reinforcing ribs 27, as in the rotating unit 22 of the X-ray imaging stand 2 of the first embodiment. The rotating member 23 includes at least an X-ray generating section 231 and an X-ray detecting section 232. The bearing mounting surface 24 is provided with a bearing rotatably supporting the rotating portion 22 by the fixed portion 21 (shown in fig. 1). The cylindrical wall 25 protrudes continuously (rises in the +x direction) from the outer periphery of the bearing mounting surface 24, and the rotating member 23 is housed inside the cylindrical wall 25. The reinforcing rib 27 is used to connect the cylindrical wall 25, the bearing mounting surface 24, and a reinforcing ring 26 described later. The stiffener 27 includes at least a first stiffener 271 formed on both sides of the X-ray generating section 231 and a second stiffener 272 formed on both sides of the X-ray detecting section 232. The reinforcing ring 26 is formed on the bearing mounting surface 24, and the reinforcing ring 26 is formed so as to protrude at least in the center-of-gravity side direction of the rotating member 23 with reference to the bearing mounting surface 24. The reinforcement ring 26 is continuous at least between the first reinforcement 271 and the second reinforcement 272 adjacent thereto.
As shown in fig. 4, unlike the first embodiment, in the present embodiment, the reinforcing ring 26 includes a second reinforcing ring 262, and the second reinforcing ring 262 protrudes toward the center-of-gravity side of the rotating part member 23.
Hereinafter, the center-of-gravity side direction of the rotating part member 23 on the rotating part 22 will be exemplarily described as the +x direction, and therefore, the second reinforcing ring 262 is formed to protrude in the +x direction from the bearing mounting surface 24 with reference to the bearing mounting surface 24. The second reinforcing ring 262 is connected to the cylindrical wall 25 by the first reinforcing ribs 271 and the second reinforcing ribs 272. The second reinforcing ring 262 is divided into three segments, i.e., a segment between the first reinforcing ribs 271, a segment between one first reinforcing rib 271 and the second reinforcing rib 272 adjacent thereto, and a segment between the other first reinforcing rib 271 and the second reinforcing rib 272 adjacent thereto, which are continuously formed to constitute the integral second reinforcing ring 262. That is, the second reinforcing ring 262 continues the region between one first reinforcing bead 271 and the second reinforcing bead 272 adjacent thereto, the second reinforcing ring 262 also continues the region between the other first reinforcing bead 271 and the second reinforcing bead 272 adjacent thereto, and the second reinforcing ring 262 also continues the region between the two first reinforcing beads 271.
As shown in fig. 5, in the present embodiment, the reinforcing ring 26 further includes a third reinforcing ring 263, and the third reinforcing ring 263 protrudes in a direction opposite to the direction of the center of gravity side of the rotating part member 23.
The third reinforcing ring 263 is formed to protrude in the-X direction from the bearing mounting surface 24 with reference to the bearing mounting surface 24. The third reinforcement ring 263 is connected to the cylindrical wall 25 by a second reinforcement rib 272. The third reinforcing ring 263 is formed at the rear surface side corresponding to the position between the two second reinforcing ribs 272. The third reinforcement ring 263 and the second reinforcement ring 262 together form a closed shape in the circumferential direction of the rotating portion 22. The closed shape means that the third reinforcement ring 263 and the second reinforcement ring 262 form a closed loop of 360 ° in the circumferential direction of the circumferential surface, as viewed in the circumferential direction of the rotating portion 22. As illustrated in fig. 5 in the present embodiment, the second reinforcement ring 262 and the third reinforcement ring 263 have portions overlapping each other in the circumferential direction of the rotating portion 22, and the second reinforcement ring 262 and the third reinforcement ring 263 can be configured as closed loops continuing to each other on both front and rear sides. The second reinforcement ring 262 and the third reinforcement ring 263 may not have portions overlapping each other in the circumferential direction of the rotating portion 22, and may form a closed loop linearly connected end to end. That is, when the second reinforcing ring 262 and the third reinforcing ring 263 are engaged with each other, the second reinforcing ring 262 and the third reinforcing ring 263 can cover one circumference of the rotating portion 22 in the circumferential direction (i.e., the rotating portion is closed at 360 ° and has no broken position), and the reinforcing ring 26 formed by the second reinforcing ring 262 and the third reinforcing ring 263 is relatively closed at the circumferential surface.
In the present embodiment, the reinforcing ring 26 can obtain the best reinforcing effect when the inner side of the cylindrical wall 25 including the X-ray generating section 231 and the X-ray detecting section 232 is formed in the entire continuous closed state. However, since the space in the rotating portion 22 is very compact, for example, when the space around the X-ray detecting portion 232 is not provided with the reinforcing ring 26 protruding toward the center of gravity side of the rotating portion member 23, the continuous reinforcing ring 26 cannot be formed on one side with respect to the bearing mounting surface 24. However, by forming the closed-shape reinforcing ring 26 having the overlapping portions and being equivalent to the continuous second reinforcing ring 262 and third reinforcing ring 263 on both front and rear sides (X-axis direction) of the bearing mounting surface 24, the reinforcing effect of greatly improving the rigidity of the rotating portion 22 can be similarly achieved.
In addition, as shown in fig. 5, in order to further enhance the reinforcing effect of the reinforcing ring 26 protruding in the direction opposite to the center-of-gravity side direction of the rotating part member 23, the rigidity of the rotating part 22 is further enhanced. The reinforcing ring 26 may further include a fourth reinforcing ring 264 protruding in a direction opposite to the center-of-gravity side direction of the rotating part member 23, and the fourth reinforcing ring 264 may be formed so as to protrude in the-X direction from the bearing mounting surface 24 with reference to the bearing mounting surface 24. The fourth reinforcing ring 264 is connected to the cylindrical wall 25 by the first reinforcing rib 271 and the second reinforcing rib 272. The fourth reinforcing ring 264 is formed at the rear side corresponding to the second reinforcing ring 262. In the present embodiment, the fourth reinforcing ring 264 may be discontinuous between the two first reinforcing ribs 271 in order to avoid a sufficient spatial position for the X-ray generating section 231, but the fourth reinforcing ring 264 may be continuously closed between the two first reinforcing ribs 271 if the installation position of the X-ray generating section 231 is sufficient.
In addition, since the structure of the partial X-ray detecting section 232 itself has relatively good rigidity, when the structure of the rotating section 22 is restricted or in order to reduce the overall weight of the rotating section 22, only the second reinforcing ring 262 protruding toward the center-of-gravity side of the rotating section member 23 may be formed, without forming the third reinforcing ring 263 and the fourth reinforcing ring 264 protruding toward the direction opposite to the center-of-gravity side of the rotating section member 23.
The protruding height (length extending in the X-axis direction) of the reinforcing ring 26 can be adjusted according to the layout of the rotating part members 23 of the rotating part 22, but the higher the protruding height of the reinforcing ring 26 is, the better the reinforcing effect on the overall rigidity of the rotating part 22 is.
The reinforcing ring 26 may be made of a metal such as iron or aluminum, or a resin material having a certain rigidity. The better the rigidity of the material forming the reinforcing ring 26, the better the reinforcing effect of the reinforcing ring 26 on the rigidity of the rotating portion 22.
When the bearing mounting surface 24, the cylindrical wall 25, and the reinforcing rib 27 of the rotating portion 22 are integrally formed by metal welding or integral casting, the reinforcing ring 26 may be integrally connected to the bearing mounting surface 24, the cylindrical wall 25, and the reinforcing rib 27 by welding or bolts. Alternatively, the reinforcing ring 26 may be integrally cast with the bearing mounting surface 24, the cylindrical wall 25, and the reinforcing ribs 27.
In this embodiment, the reinforcing ring is formed on the bearing mounting surface so as to protrude at least in the direction of the center of gravity of the rotating member, and the reinforcing ring is made continuous between at least the first reinforcing rib and the second reinforcing rib adjacent thereto, whereby the rigidity of the rotating portion of the X-ray imaging stand is reinforced, and further the possibility of deformation of the rotating portion during high-speed rotation is reduced, and the relative position between the X-ray generating portion and the X-ray detecting portion is prevented from being greatly deviated, thereby avoiding degradation of the final imaging quality.
(third embodiment)
Next, a structure of the rotating unit 22 of the X-ray imaging stand 2 according to a third embodiment of the present utility model will be described with reference to fig. 6.
The same parts as those of the first embodiment in this embodiment will not be described again. Only the different parts will be described. Other undescribed portions are the same as or equivalent to the first embodiment.
Fig. 6 is a schematic diagram showing a configuration of a rotating unit 22 of an X-ray imaging gantry 2 according to a third embodiment of the present utility model.
As shown in fig. 6, in the present embodiment, the rotating unit 22 includes a rotating unit member 23, a bearing mounting surface 24, a cylindrical wall 25, a reinforcing ring 26, and reinforcing ribs 27, as in the rotating unit 22 of the X-ray imaging stand 2 of the first embodiment. The rotating member 23 includes at least an X-ray generating section 231 and an X-ray detecting section 232. The bearing mounting surface 24 is provided with a bearing rotatably supporting the rotating portion 22 by the fixed portion 21 (shown in fig. 1). The cylindrical wall 25 protrudes continuously (rises in the +x direction) from the outer periphery of the bearing mounting surface 24, and the rotating member 23 is housed inside the cylindrical wall 25. The reinforcing rib 27 is used to connect the cylindrical wall 25, the bearing mounting surface 24, and a reinforcing ring 26 described later. The stiffener 27 includes at least a first stiffener 271 formed on both sides of the X-ray generating section 231 and a second stiffener 272 formed on both sides of the X-ray detecting section 232. The reinforcing ring 26 is formed on the bearing mounting surface 24, and the reinforcing ring 26 is formed so as to protrude at least in the center-of-gravity side direction of the rotating member 23 with reference to the bearing mounting surface 24. The reinforcement ring 26 is continuous at least between the first reinforcement 271 and the second reinforcement 272 adjacent thereto.
In the present embodiment, in view of further reduction in the weight of the rotating portion 22, if the angle and thickness of the first reinforcing ribs 271 are adjusted so that the position of the rotating portion 22 where the X-ray generating section 231 is provided can have sufficient rigidity, the reinforcing ring 26 may not be formed between the two first reinforcing ribs 271. In addition, since the structure of the partial X-ray detecting section 232 itself has relatively good rigidity, the reinforcing ring 26 may not be formed between the two second reinforcing ribs 272.
As shown in fig. 6, unlike the first embodiment, in the present embodiment, the reinforcing ring 26 includes a fifth reinforcing ring 265 and a sixth reinforcing ring 266. The fifth reinforcing ring 265 and the sixth reinforcing ring 266 protrude toward the center of gravity side of the rotating part member 23.
Hereinafter, the center-of-gravity side direction of the rotating part member 23 on the rotating part 22 will be described as the +x direction, and therefore, the fifth reinforcing ring 265 and the sixth reinforcing ring 266 are formed so as to protrude in the +x direction from the bearing mounting surface 24 with reference to the bearing mounting surface 24. The fifth reinforcing ring 265 and the sixth reinforcing ring 266 are connected to the cylindrical wall 25 by the first reinforcing rib 271 and the second reinforcing rib 272. The fifth reinforcing ring 265 continues the region between one first reinforcing rib 271 and the adjacent second reinforcing rib 272, and the sixth reinforcing ring 266 continues the region between the other first reinforcing rib 271 and the adjacent second reinforcing rib 272.
The protruding height (length extending in the X-axis direction) of the reinforcing ring 26 can be adjusted according to the layout of the rotating part members 23 of the rotating part 22, but the higher the protruding height of the reinforcing ring 26 is, the better the reinforcing effect on the overall rigidity of the rotating part 22 is.
The reinforcing ring 26 may be made of a metal such as iron or aluminum, or a resin material having a certain rigidity. The better the rigidity of the material forming the reinforcing ring 26, the better the reinforcing effect of the reinforcing ring 26 on the rigidity of the rotating portion 22.
When the bearing mounting surface 24, the cylindrical wall 25, and the reinforcing rib 27 of the rotating portion 22 are integrally formed by metal welding or integral casting, the reinforcing ring 26 may be integrally connected to the bearing mounting surface 24, the cylindrical wall 25, and the reinforcing rib 27 by welding or bolts. Alternatively, the reinforcing ring 26 may be integrally cast with the bearing mounting surface 24, the cylindrical wall 25, and the reinforcing ribs 27.
In this embodiment, the reinforcing ring is formed on the bearing mounting surface so as to protrude at least in the direction of the center of gravity of the rotating member, and the reinforcing ring is made continuous between at least the first reinforcing rib and the second reinforcing rib adjacent to each other, whereby the rigidity of the rotating portion of the X-ray imaging stand is reinforced, and the possibility of deformation of the rotating portion during high-speed rotation is reduced, so that the relative position between the X-ray generating portion and the X-ray detecting portion is not greatly deviated, and the reduction of the final imaging quality is avoided.
Any of the embodiments described above can be expressed as follows.
An X-ray imaging gantry, comprising:
a fixing part; and
a rotating part, which is provided with a rotating part,
the rotating part includes:
a rotating part component at least comprising an X-ray generating part and an X-ray detecting part;
a bearing mounting surface on which a bearing rotatably supporting the rotating portion by the fixed portion is provided;
a cylindrical wall protruding continuously from an outer periphery of the bearing mounting surface, the cylindrical wall accommodating the rotating member inside;
a reinforcing ring formed on the bearing mounting surface, the reinforcing ring protruding at least in a direction toward a center of gravity of the rotating part member with respect to the bearing mounting surface; and
a reinforcing rib connecting the bearing mounting surface, the reinforcing ring and the cylindrical wall,
wherein the reinforcing rib at least comprises a first reinforcing rib formed on two sides of the X-ray generating part and a second reinforcing rib formed on two sides of the X-ray detecting part, and the reinforcing ring is continuous at least between the first reinforcing rib and the second reinforcing rib adjacent to the first reinforcing rib.
According to at least one embodiment described above, the rigidity of the rotating portion of the X-ray imaging stand is reinforced by forming the reinforcing ring on the bearing mounting surface so as to protrude at least in the direction of the center of gravity of the rotating portion member, and further, the possibility of deformation of the rotating portion during high-speed rotation is reduced, so that the relative position between the X-ray generating portion and the X-ray detecting portion is not greatly deviated, and the reduction of the final imaging quality is avoided.
While several embodiments of the present utility model have been described, these embodiments are presented by way of example only and are not intended to limit the scope of the utility model. These novel embodiments can be implemented in various other modes, and various omissions, substitutions, combinations, and modifications can be made without departing from the spirit of the utility model. These embodiments and modifications thereof are included in the scope and gist of the present utility model, and are included in the present utility model and their equivalents as set forth in the claims.
Claims (12)
1. An X-ray imaging gantry, comprising:
a fixing part; and
a rotating part, which is provided with a rotating part,
the rotating part includes:
a rotating part component at least comprising an X-ray generating part and an X-ray detecting part;
a bearing mounting surface on which a bearing rotatably supporting the rotating portion by the fixed portion is provided;
a cylindrical wall protruding continuously from an outer periphery of the bearing mounting surface, the cylindrical wall accommodating the rotating member inside;
a reinforcing ring formed on the bearing mounting surface, the reinforcing ring protruding at least in a direction toward a center of gravity of the rotating part member with respect to the bearing mounting surface; and
a reinforcing rib connecting the bearing mounting surface, the reinforcing ring and the cylindrical wall,
wherein the reinforcing rib at least comprises a first reinforcing rib formed on two sides of the X-ray generating part and a second reinforcing rib formed on two sides of the X-ray detecting part, and the reinforcing ring is continuous at least between the first reinforcing rib and the second reinforcing rib adjacent to the first reinforcing rib.
2. The X-ray imaging stand according to claim 1, wherein,
the reinforcing ring includes a first reinforcing ring protruding toward the center-of-gravity side of the rotating part member,
the first reinforcing ring is continuous between each of the first reinforcing bead and the second reinforcing bead to form a closed ring.
3. The X-ray imaging stand according to claim 2, wherein,
the first reinforcing ring is provided with first openings for passing X rays in the area between the first reinforcing ribs, and second openings for passing X rays in the area between the second reinforcing ribs.
4. The X-ray imaging stand according to claim 1, wherein,
the reinforcing ring includes a second reinforcing ring protruding toward the center-of-gravity side of the rotating part member,
wherein the second reinforcing ring is continuous with a region between one of the first reinforcing ribs and the adjacent second reinforcing rib, the second reinforcing ring is also continuous with a region between the other of the first reinforcing ribs and the adjacent second reinforcing rib, and the second reinforcing ring is also continuous with a region between the two first reinforcing ribs.
5. The X-ray imaging stand according to claim 4, wherein,
the reinforcing ring further includes a third reinforcing ring protruding in a direction opposite to a center-of-gravity side direction of the rotating part member,
the third reinforcing ring is formed on the back side corresponding to the position between the two second reinforcing ribs, and the second reinforcing ring and the third reinforcing ring are combined to form a closed shape.
6. The X-ray imaging stand according to claim 5, wherein,
the reinforcing ring further includes a fourth reinforcing ring protruding in a direction opposite to a center-of-gravity side direction of the rotating part member, the fourth reinforcing ring being formed on a back surface side corresponding to the second reinforcing ring.
7. The X-ray imaging stand according to claim 1, wherein,
the reinforcing ring includes a fifth reinforcing ring and a sixth reinforcing ring protruding toward the center of gravity side of the rotating part member,
wherein the fifth reinforcing ring continues one region between the first reinforcing rib and the second reinforcing rib adjacent thereto, and the sixth reinforcing ring continues another region between the first reinforcing rib and the second reinforcing rib adjacent thereto.
8. The X-ray imaging stand according to claim 1, wherein,
the reinforcing ring is formed of a metal material or a resin material.
9. The X-ray imaging stand according to claim 1, wherein,
the bearing mounting surface, the cylinder wall and the reinforcing ribs are formed into a whole through metal welding or integral casting.
10. The X-ray imaging stand according to claim 9, wherein,
the reinforcing ring is integrally connected with the bearing mounting surface, the cylinder wall and the reinforcing rib through welding or bolts.
11. The X-ray imaging stand according to claim 1, wherein,
the reinforcing ring, the bearing mounting surface, the cylinder wall and the reinforcing rib are integrally cast into a whole.
12. An X-ray diagnostic system, comprising:
a bed table; and
the X-ray imaging stand of any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223141736.XU CN219557339U (en) | 2022-11-25 | 2022-11-25 | X-ray photographing stand and X-ray diagnosis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223141736.XU CN219557339U (en) | 2022-11-25 | 2022-11-25 | X-ray photographing stand and X-ray diagnosis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219557339U true CN219557339U (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223141736.XU Active CN219557339U (en) | 2022-11-25 | 2022-11-25 | X-ray photographing stand and X-ray diagnosis system |
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| Country | Link |
|---|---|
| CN (1) | CN219557339U (en) |
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2022
- 2022-11-25 CN CN202223141736.XU patent/CN219557339U/en active Active
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