A CT scanning gantry and a CT mainframe

Abstract

The present invention relates to a CT scanning gantry and a CT mainframe, comprising: a support frame (1) and a fixing system (2); wherein, the support frame (1) includes a plain bearing (11) and an auxiliary bearing (12), the plain bearing (11) is located below the support frame (1), and the auxiliary bearing (12) is located above the support frame (1); the fixing system (2) is connected between the plain bearing (11) and the auxiliary bearing (12), and the fixing system (2) rotates within a certain angular range in the horizontal direction around the axis formed by the plain bearing (11) and the auxiliary bearing (12). In the present invention, by changing the support of the fixing system to the bottom surface of the mainframe base, an auxiliary support structure is provided above the scanning gantry, and the linear push rod is fixed between the base and the fixing system, and the left and right inclination of the scanning gantry is realized through the telescopic movement of the push rod.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a CT gantry and a CT host. Background Art

[0002] In the structure of a traditional CT gantry, in order to meet different scanning conditions, it is necessary to be able to achieve a tilting motion. In the existing gantry fixing system, two rotating shafts are connected by a fixing plate and installed on a bearing seat, and the bearing seat is installed on the host base. Then, a linear push rod is connected to the fixing plate through the rotating shaft. When the linear push rod works, the fixing plate system can make a circular motion around the rotating shaft. When the push rod makes a pushing action, the gantry tilts forward, and when the push rod retracts, the gantry tilts backward.

[0003] During the tilting process of the entire fixing system, the force received is very large. In order to ensure the safety of the system, the strength requirements for the components of the entire fixing system are very high. At the same time, the fatigue resistance and corrosion resistance of the components are also required to be very high. Therefore, traditional fixing plates are made of cast aluminum materials, and the price of cast aluminum materials is expensive, resulting in a very high cost. In addition, during the process of achieving tilting, the push rod needs to drive the weight of the entire fixing system and all components of the rotating system it carries, so the thrust requirement for the push rod is very high, and the cost of the push rod will also be very high.

[0004] Generally speaking, due to the consideration of forward and backward tilting, the cost of traditional CT gantries is very high and the economy is poor. In addition, the traditional tilting method is forward and backward tilting, and patients will feel depressed during the scanning process, especially for small-bore CT, this feeling will be particularly obvious. Summary of the Invention

[0005] The embodiments of the present invention provide a CT gantry and a CT host to solve one of the above technical problems encountered during the rotation of a traditional CT host.

[0006] According to a specific embodiment of the present invention, in a first aspect, the present invention provides a CT gantry, including: a support frame 1 and a fixing system 2; wherein, the support frame 1 includes a plain bearing 11 and an auxiliary bearing 12, the plain bearing 11 is located below the support frame 1, and the auxiliary bearing 12 is located above the support frame 1; the fixing system 2 is connected between the plain bearing 11 and the auxiliary bearing 12, and the fixing system 2 rotates within a certain angle range in the horizontal direction around an axis formed by the plain bearing 11 and the auxiliary bearing 12.

[0007] Optionally, the support frame 1 includes a horizontal support plate 13, a vertical support plate 14 extending upward along the horizontal support plate 13, and an auxiliary support plate 15 extending laterally along the vertical support plate 14; the plain bearing 11 is disposed upward on the horizontal support plate 13, and the auxiliary bearing 12 is disposed downward on the auxiliary support plate 15.

[0008] Optionally, it further includes a linear push rod 3 fixedly connected between the horizontal support plate 13 and the fixing system 2, and the fixing system 2 realizes horizontal rotation under the push of the linear push rod 3.

[0009] Optionally, the fixing system 2 includes: a main machine base 21 and a fixing plate assembly 22 integrally formed with the main machine base 21.

[0010] Optionally, the fixing plate assembly 22 includes: a first round hole 223 located at the center of the fixing plate assembly 22 and a plurality of second round holes 224 surrounding the first round hole 223.

[0011] Optionally, the bottom end of the main machine base 21 includes a first blind hole that cooperates with the plain bearing 11 for rotation; the fixing plate assembly 22 includes a second blind hole 221 that cooperates with the auxiliary bearing 12 for rotation.

[0012] Optionally, a reinforcing rib 222 is provided on one side of the fixing plate assembly 22.

[0013] Optionally, the reinforcing rib 222 includes: a first reinforcing rib 2221 extending outward along the edge of the fixing plate assembly 22; a second reinforcing rib 2222 connecting the first reinforcing rib 2221 and the first round hole 223; and a third reinforcing rib 2223 connecting the first reinforcing rib 2221 and the main machine base 21.

[0014] Optionally, the second reinforcing rib 2222 is located between every two adjacent second round holes 224.

[0015] According to a specific embodiment of the present invention, in a second aspect, the present invention provides a CT main machine, including the CT scanning frame as described in any one of the above.

[0016] The above solution of the embodiment of the present invention has at least the following beneficial effects:

[0017] The present invention provides a CT scanning frame and a CT main machine. By changing the support of the fixing system to the bottom surface of the main machine base, an auxiliary support structure is provided above the scanning frame, and the linear push rod is fixed between the base and the fixing system. The left and right inclination of the scanning frame is realized by the telescopic movement of the push rod.

[0018] Since the entire fixing system is mounted on the base through plain bearings, all the weight of the fixing system is transmitted to the base through the plain bearings. Thus, when the frame tilts left and right, the actual force that the push rod overcomes is the frictional torque of the bearings. This force is about one-tenth of the weight of the entire frame system. As a result, the selection range of the push rod is very large and the cost is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 is the first three-dimensional structural schematic diagram of the CT scanning frame according to the embodiment of the present invention;

[0021] Figure 2 is the second three-dimensional structural schematic diagram of the CT scanning frame according to the embodiment of the present invention;

[0022] Figure 3 is the first three-dimensional structural schematic diagram of the fixing system according to the embodiment of the present invention;

[0023] Figure 4 is the second three-dimensional structural schematic diagram of the fixing system according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0025] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0026] It should be understood that the term " / and" used herein is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0027] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present application to describe certain components, these certain components should not be limited to these terms. These terms are only used to distinguish certain components from each other. For example, without departing from the scope of the embodiments of the present application, the first certain component may also be referred to as the second certain component, and similarly, the second certain component may also be referred to as the first certain component.

[0028] Depending on the context, the words "if", "when" as used herein may be interpreted as "when...", "while...", "in response to determining", or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined", "in response to determining", "when detected (stated condition or event)", or "in response to detecting (stated condition or event)".

[0029] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a commodity or system comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such commodity or system. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the commodity or system comprising said element.

[0030] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] As Figure 1 shown, according to the specific embodiments of the present invention, the present invention provides a CT gantry. The CT gantry, as the main supporting component of the CT system, is used to carry components such as the rotating system, rotating drive component, electrical components, and outer cover of the CT system. The above components are omitted from introduction. Among them, CT (Computed Tomography), that is, computed tomography. The following will describe the structure of the CT gantry in detail with reference to the attached Figure 1 and 2 drawings.

[0032] The CT gantry includes: The CT gantry is used to support all electrical equipment of the CT scanning system. Specifically, the CT gantry includes: a support frame 1 and a fixing system 2; wherein, the support frame 1 includes a plain bearing 11 and an auxiliary bearing 12. The plain bearing 11 is located below the support frame 1, and the auxiliary bearing 12 is located above the support frame 1.

[0033] As Figure 2As shown, as an alternative embodiment, the support frame 1 includes a horizontal support plate 13, a vertical support plate 14 extending upward along the horizontal support plate 13, and an auxiliary support plate 15 extending horizontally along the vertical support plate 14. The auxiliary support plate 15 is shorter than the horizontal support plate 13. The plain bearing 11 is disposed upward on the horizontal support plate 13, for example, integrally formed with the horizontal support plate 13 to form a rotating shaft. Generally, the plain bearing 11 has a thick and short shape structure to support a sufficient large gravity. The auxiliary bearing 12 is disposed downward on the auxiliary support plate 15, for example, integrally formed with the auxiliary support plate 15 to form a rotating shaft. Generally, the auxiliary bearing 12 has a thinner shape structure than the plain bearing 11 because it does not need to support too much gravity and only plays an auxiliary role during the rotation of the fixing system 2.

[0034] The fixing system 2 is connected between the plain bearing 11 and the auxiliary bearing 12, and the fixing system 2 rotates within a certain angular range in the horizontal direction about the axis formed by the plain bearing 11 and the auxiliary bearing 12.

[0035] As an alternative embodiment, the CT scanning frame further includes a linear push rod 3, such as an electric push rod, fixedly connected between the horizontal support plate 13 and the fixing system 2. The fixing system 2 realizes horizontal rotation under the push of the linear push rod 3. The electric push rod can be controlled to extend and retract through the power control system of the CT scanning host, thereby pushing the left - right horizontal rotation of the fixing system 2. The control system is not the core point of this application, so no detailed introduction is made here. For this, reference can be made to the electrical control systems in the prior art.

[0036] As Figure 3As shown, the fixing system 2 includes: a mainframe base 21 and a fixing plate assembly 22 integrally formed with the mainframe base 21. Integrally forming the mainframe base 21 and the fixing plate assembly 22 can increase the supporting weight and reduce the number of assembled parts. As a relatively inferior implementation, the mainframe base 21 and the fixing plate assembly 22 can also form an inseparable integral structure through a welding process; among them, the mainframe base 21 includes a horizontal support plate 211 and vertical support plates 212 extending upward along both sides of the horizontal support plate 211; the fixing plate assembly 22 is perpendicularly arranged with the vertical support plates 212, and the fixing plate assembly 22 includes: a first round hole 223 located at the center of the fixing plate assembly 22 and a plurality of second round holes 224 surrounding the first round hole 223. The first round hole 223 has a certain depth extending perpendicular to the fixing plate assembly 22, where there is a circular edge (not shown) protruding on the back of the fixing plate assembly 22 and flush with the front of the fixing plate assembly 22. The aperture of the first round hole 223 is larger than the aperture of the second round hole 224. The first round hole 223 allows a person to pass through for medical scanning. The second round holes 224 are for installing other electrical devices.

[0037] Among them, the bottom end of the mainframe base 21 includes a first blind hole (not shown) that cooperates with the planar bearing 11 for rotation, and the first blind hole allows the planar bearing 11 to extend into and rotate; the fixing plate assembly 22 includes a second blind hole (not shown) that cooperates with the auxiliary bearing 12 for rotation, and the second blind hole allows the auxiliary bearing to extend into and rotate.

[0038] As Figure 4 As shown, the fixing plate assembly 22 further includes reinforcing ribs 222 provided on one side of the fixing plate assembly 22 for increasing the rigidity of the mobile CT gantry. Among them, the reinforcing ribs 222 include: a first reinforcing rib 2221 extending outward along the edge of the fixing plate assembly 22; a second reinforcing rib 2222 connecting the first reinforcing rib 2221 and the first round hole 223; and a third reinforcing rib 2223 connecting the first reinforcing rib 2221 and the horizontal support plate 211. The first reinforcing rib 2221 is arranged along the periphery of the fixing plate assembly 22 to form an octagonal contour structure. The octagonal first reinforcing rib and second reinforcing rib structures can stably ensure the support of the electrical equipment of the CT scanning device. Through the setting of the second reinforcing rib, the bearing force in the vertical direction is provided, further ensuring the stability of the supported weight. Since three groups of reinforcing rib structures are provided, a hollow structure can be set at certain positions to reduce the overall weight of the fixing system on the premise of not reducing the bearing weight, which will be specifically introduced below.

[0039] Optionally, the second reinforcing rib 2222 is located between every two adjacent second circular holes 224. This causes the second circular holes 224 to be evenly dispersed around the first circular hole 223. For example, there are 8 second circular holes 224 spaced between 8 second reinforcing ribs 2222. However, the specific quantity is not limited.

[0040] Optionally, the first reinforcing rib 2221 extends vertically on the vertical support plate 212. This causes one vertical first reinforcing rib 2221 to coincide with the vertical support plate 212, further strengthening the rigidity of the mobile CT gantry.

[0041] Optionally, the fixing plate assembly 22 further includes a hollow structure 225 located below the first reinforcing rib 2221. Optionally, a rectangular hole 2111 is provided at the front end of the horizontal support plate 211, and an inward recessed structure 2112 is provided at the rear end. Optionally, the vertical support plate 212 is provided with a plurality of irregular through holes 2121. The above-mentioned hollow structure 225, rectangular hole 2111, and irregular through holes 2121 can, on the one hand, reduce the weight of the CT gantry, and on the other hand, can be used to fix other electrical devices of the CT system.

[0042] Optionally, a reinforcing rib 222 is provided on one side of the fixing plate assembly 22.

[0043] Optionally, the reinforcing rib 222 includes: a first reinforcing rib 2221 extending outward along the edge of the fixing plate assembly 22; a second reinforcing rib 2222 connecting the first reinforcing rib 2221 and the first circular hole 223; and a third reinforcing rib 2223 connecting the first reinforcing rib 2221 and the mainframe base 21.

[0044] Optionally, the second reinforcing rib 2222 is located between every two adjacent second circular holes 224.

[0045] The present invention provides a CT scanning gantry. By changing the support of the fixing system to the bottom surface of the mainframe base, an auxiliary support structure is provided above the scanning gantry, and a linear push rod is fixed between the base and the fixing system. The left and right tilting of the scanning gantry is achieved through the telescoping of the push rod.

[0046] Since the entire fixing system is mounted on the base through a planar bearing, all the weight of the fixing system is transmitted to the base through the planar bearing. Thus, when the gantry tilts left and right, the push rod actually overcomes the frictional torque of the bearing. This force is approximately 10 times smaller than the weight of the entire gantry system. As a result, the selection range of the push rod will be very large, and the cost will also be greatly reduced.

[0047] In addition, for this installation structure, the requirements for the strength and fatigue strength of the fixing system are greatly reduced, which enables the structure of the entire fixing system to be greatly simplified. At the same time, a steel plate welding structure can be used, and the material cost can be reduced by about 70% compared with the traditional cast aluminum material cost. The cost of the CT gantry fixing system is greatly reduced, approximately 30% of that of the traditional structure. During inclined scanning, the patient experience is improved, without causing a sense of compression, bringing a more comfortable experience to sensitive patients, children, and patients with claustrophobia.

[0048] Based on the embodiments of the present invention, an embodiment of the present invention provides a CT host, including the CT gantry described in the above embodiments, as well as components such as a rotation system, a rotation drive component, electrical components, and an outer cover. The settings of components such as the rotation system, the rotation drive component, electrical components, and the outer cover can refer to the prior art and will not be introduced herein.

[0049] The present invention provides a CT host. By changing the support of the fixing system to the bottom surface of the host base, an auxiliary support structure is provided above the gantry, and the linear push rod is fixed between the base and the fixing system, and the left and right inclination of the gantry is realized through the telescoping of the push rod.

[0050] Since the entire fixing system is installed on the base through a plain bearing, all the weight of the fixing system is transmitted to the base through the plain bearing. Thus, when the gantry tilts left and right, the actual force that the push rod overcomes is the frictional torque of the bearing, which is about 10 times smaller than the weight of the entire gantry system. In this way, the selection range of the push rod will be very large, and the cost will also be greatly reduced.

[0051] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A CT scanning gantry, characterized in that, Comprising: A support frame (1) and a fixing system (2); Wherein, the support frame (1) includes a plain bearing (11) and an auxiliary bearing (12), and the auxiliary bearing (12) is thinner than the plain bearing (11); the plain bearing (11) is located below the support frame (1), and the auxiliary bearing (12) is located above the support frame (1); the support frame (1) further includes a horizontal support plate (13) and a vertical support plate (14) extending upward along the horizontal support plate (13); The fixing system (2) is connected between the plain bearing (11) and the auxiliary bearing (12), and the fixing system (2) rotates within a certain angular range in the horizontal direction around the axis formed by the plain bearing (11) and the auxiliary bearing (12); the fixing system (2) includes: a main machine base (21) and a fixing plate assembly (22) integrally formed with the main machine base (21); It further includes a linear push rod (3), fixedly connected between the horizontal support plate (13) and the fixing system (2).

2. The CT scanning gantry according to claim 1, wherein The support frame (1) includes an auxiliary support plate (15) extending transversely along the vertical support plate (14); the plain bearing (11) is arranged upward on the horizontal support plate (13), and the auxiliary bearing (12) is arranged downward on the auxiliary support plate (15).

3. The CT scanning gantry according to claim 2, characterized in that, The fixing system (2) realizes horizontal rotation under the push of the linear push rod (3).

4. The CT scanning gantry according to claim 1, characterized in that, The fixing plate assembly (22) includes: a first round hole (223) located at the center of the fixing plate assembly (22) and a plurality of second round holes (224) surrounding the first round hole (223).

5. The CT scanning gantry according to claim 1, characterized in that, The bottom end of the main machine base (21) includes a first blind hole that cooperates with the plain bearing (11) for rotation; the fixing plate assembly (22) includes a second blind hole that cooperates with the auxiliary bearing (12) for rotation.

6. The CT scan rack according to claim 4, characterized in that, One side of the fixing plate assembly (22) is provided with a reinforcing rib (222).

7. The CT scanning gantry according to claim 6, wherein The reinforcing rib (222) includes: a first reinforcing rib (2221) extending outward along the edge of the fixing plate assembly (22); a second reinforcing rib (2222) connecting the first reinforcing rib (2221) and the first round hole (223); and a third reinforcing rib (2223) connecting the first reinforcing rib (2221) and the main machine base (21).

8. The CT scan rack according to claim 7, wherein, The second reinforcing rib (2222) is located between every two adjacent second round holes (224).

9. A CT host, characterized in that, Including the CT scanning frame according to any one of claims 1-8.

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