CT Scanner

Abstract

The present invention relates to a CT apparatus. The CT apparatus comprises a scanning frame, which is U-shaped and comprises a bottom plate and a first and a second mounting plate; a rotating frame, the two ends of which are respectively rotatably connected to the first and the second mounting plates, and the first mounting plate is provided with a first through hole which is directly connected to the rotating frame, so that the object to be scanned can enter the rotating frame through the first through hole; and a scanning assembly, which comprises an X-ray source and a detector arranged on the side wall of the rotating frame. In the above-mentioned CT apparatus, a U-shaped scanning frame is used to install the rotating frame, and the two ends of the rotating frame are respectively rotatably connected to the first and the second mounting plates, so that during the rotation of the rotating frame, the force on the bottom plate is balanced. Under the same stability condition, the balanced force is relative to the eccentric force of the base of the L-shaped scanning frame, which reduces the weight requirement of the bottom plate, thereby reducing the weight of the CT apparatus, and obtaining a CT apparatus with a relatively small mass, so as to facilitate the application of the CT apparatus with a small weight on vehicles.

Description

[0001] This invention claims the priority of Chinese patent application filed on October 16, 2018, with application number 201821675858.8. Technical Field

[0002] The present invention relates to the field of CT technology, and in particular to a CT apparatus. Background Art

[0003] Mobile hospitals can deliver advanced medical services to where they are needed, allowing medical staff to go to patients instead of having patients travel long distances to find doctors. Mobile hospitals are usually carried by vehicles, but vehicles have limited carrying capacity and cannot be overloaded. Vehicles cannot be equipped with heavy CT (Computed Tomography) devices, which results in incomplete functions of mobile hospitals.

[0004] A conventional CT apparatus usually includes an L-shaped scanning frame and a rotating frame rotatably connected to the L-shaped scanning frame. When the rotating frame rotates, the force applied to the base of the L-shaped scanning frame is eccentric force, which requires higher stability of the base. The stability of the base is usually increased by increasing the weight of the base. However, the increase in the weight of the base is more unfavorable for the CT apparatus to be configured on a vehicle. Summary of the invention

[0005] Based on this, it is necessary to provide a CT apparatus to solve the problem that the traditional CT apparatus is not suitable for being configured on a vehicle due to the heavy weight of the scanning frame.

[0006] A CT apparatus, comprising:

[0007] A scanning frame, the scanning frame is U-shaped, comprising a bottom plate and a first mounting plate and a second mounting plate respectively arranged on two opposite sides of the bottom plate;

[0008] A rotating frame, wherein two ends of the rotating frame are rotatably connected to the first mounting plate and the second mounting plate respectively, and the first mounting plate is provided with a first through hole which is directly connected to the rotating frame, so that the object to be scanned can enter the rotating frame through the first through hole; and

[0009] The scanning assembly includes an X-ray source and a detector. The X-ray source and the detector are both arranged on the side wall of the rotating frame, and the X-ray source is directly opposite to the detector.

[0010] In the above CT apparatus, a U-shaped scanning frame is used to install the rotating frame, and the two ends of the rotating frame are respectively connected to the first mounting plate and the second mounting plate for rotation, so that during the rotation of the rotating frame, the force on the bottom plate is balanced. Under the same stability condition, the balanced force is lower than the partial force on the base of the L-shaped scanning frame, which reduces the weight requirement of the bottom plate, thereby reducing the weight of the CT apparatus and obtaining a CT apparatus with a relatively small mass, so as to facilitate the application of the CT apparatus with a small weight on a vehicle, that is, the above CT apparatus is convenient to be configured on a vehicle and is suitable for vehicle-mounted. Moreover, the two ends of the rotating frame are respectively connected to the first mounting plate and the second mounting plate for rotation, which is different from the two opposite side walls of the rotating frame being connected to the first mounting plate and the second mounting plate for rotation, so that the structure of the CT apparatus can be simplified, and the first through hole is opened on the first mounting plate so that the object to be scanned can enter the rotating frame through the first through hole, which simplifies the structure of the CT apparatus and solves the problem of the first mounting plate blocking the object to be scanned.

[0011] In one embodiment, it also includes a transmission component, which includes a first slewing bearing and a second slewing bearing arranged between the first mounting plate and the second mounting plate, the first slewing bearing and the second slewing bearing are rotatably connected to the first mounting plate and the second mounting plate respectively, and the two ends of the rotating frame are fixedly connected to the first slewing bearing and the second slewing bearing respectively, and the first slewing bearing has a first channel so that the object to be scanned can enter the rotating frame through the first through hole and the first channel in sequence.

[0012] In one embodiment, a side of the first slewing bearing close to the second slewing bearing is provided with a plurality of first threaded holes, and a side of the second slewing bearing close to the first slewing bearing is provided with a plurality of second threaded holes;

[0013] The rotating frame includes a cylinder, a first annular flange and a second annular flange respectively arranged at opposite ends of the cylinder, and a first threaded column and a second threaded column, the first annular flange is provided with a plurality of first threaded through holes, the second annular flange is provided with a plurality of second threaded through holes, the first threaded column is threadedly connected to the first threaded through hole and the first threaded hole, and the second threaded column is threadedly connected to the second threaded through hole and the second threaded hole.

[0014] In one embodiment, the first slewing bearing comprises a first bearing body and a first annular slide rail provided on a side of the first bearing body away from the rotating frame, a first slide groove is provided on a side of the first mounting plate close to the second mounting plate, and the first slide groove is slidably matched with the first annular slide rail;

[0015] The second slewing bearing includes a second bearing body and a second annular slide rail arranged on the side of the second bearing body away from the rotating frame. A second slide groove is opened on the side of the second mounting plate close to the first mounting plate. The second slide groove is slidably matched with the second annular slide rail.

[0016] In one embodiment, both the first slide groove and the second slide groove are open-loop structures.

[0017] In one embodiment, the outer side surface of the second bearing body is a tooth surface, so as to mesh with the gear of the driving device and be driven by the driving device to make the second annular slide rail rotate in the second slide groove.

[0018] In one embodiment, the base plate, the first mounting plate and the second mounting plate are each provided with at least one window.

[0019] In one embodiment, the rotating frame includes a plurality of connecting columns, and a first annular plate and a second annular plate. The plurality of connecting columns are spaced and surrounded to form a cylindrical body, and both ends of each connecting column are respectively connected to the first annular plate and the second annular plate. The first annular plate and the second annular plate are respectively rotatably connected to the first mounting plate and the second mounting plate.

[0020] In one embodiment, the rotating frame further includes a first mounting member and a second mounting member facing each other, the first mounting member includes two first lugs and a first connecting substrate, the two first lugs are respectively connected to the first annular plate and the second annular plate, the first connecting substrate connects the two first lugs and encloses to form a first accommodating cavity, the X-ray source is located in the first accommodating cavity and is provided on the first connecting substrate;

[0021] The second mounting member includes two second lugs and a second connecting substrate. The two second lugs are respectively connected to the first annular plate and the second annular plate. The second connecting substrate connects the two second lugs to form a second accommodating cavity. The detector is located in the second accommodating cavity and is arranged on the second connecting substrate.

[0022] In one embodiment, the first lug, the first connection substrate, the second lug, and the second connection substrate are each provided with at least one window. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a CT apparatus provided in one embodiment of the present invention;

[0024] Figure 2 for Figure 1The three-dimensional structure diagram of the CT apparatus after the shell is removed is shown;

[0025] Figure 3 for Figure 1 The combined diagram of the scanning frame and the transmission assembly of the CT apparatus shown;

[0026] Figure 4 for Figure 1 The combined diagram of the rotating frame and scanning assembly of the CT apparatus is shown. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] like Figure 1 As shown, a CT apparatus 10 provided by an embodiment of the present invention includes a scanning frame 100, a rotating frame 200, a scanning assembly 300, a transmission assembly 400 and a housing 500. The scanning assembly 300 is arranged on the rotating frame 200, and the rotating frame 200 is rotatably connected with the scanning frame 100 through the transmission assembly 400, so that when the rotating frame 200 rotates relative to the scanning frame 100 through the transmission assembly 400, the scanning assembly 300 rotates and performs CT scanning on the object to be scanned. The scanning frame 100, the rotating frame 200, the scanning assembly 300 and the transmission assembly 400 are all accommodated in the housing 500.

[0031] In some embodiments, the object to be scanned is the head of a person lying on the detection bed 20. After the detection bed 20 enters the rotating frame 200, the scanning assembly 300 performs a CT scan on the head. In some embodiments, when performing CT scanning, the rotating frame 200 rotates in the direction of the arrow 30 shown in the figure.

[0032] like Figure 2 As shown, the scanning frame 100 is U-shaped, including a bottom plate 110 and a first mounting plate 120 and a second mounting plate 130 respectively disposed on opposite sides of the bottom plate 110. The two ends of the rotating frame 200 are rotatably connected to the first mounting plate 120 and the second mounting plate 130 respectively, and the first mounting plate 130 is provided with a first through hole 122 that is directly connected to the rotating frame 200, so that the object to be scanned enters the rotating frame 200 through the first through hole 122. The scanning assembly 300 includes an X-ray source 310 and a detector 320, and the X-ray source 310 and the detector 320 are both disposed on the side wall of the rotating frame 200, and the X-ray source 310 and the detector 320 are directly opposite.

[0033] In the above-mentioned CT apparatus 10, a U-shaped scanning frame 100 is used to install the rotating frame 200, and the two ends of the rotating frame 200 are rotatably connected to the first mounting plate 120 and the second mounting plate 130 respectively, so that during the rotation of the rotating frame 200, the force applied to the bottom plate 110 is balanced. Under the same stability condition, the balanced force is lower than the eccentric force applied to the base of the L-shaped scanning frame, thereby reducing the weight requirement of the bottom plate 110, thereby reducing the weight of the CT apparatus 10 and obtaining a CT apparatus 10 with a relatively small mass, so as to facilitate the application of the CT apparatus 10 with a small weight to a vehicle, that is, the above-mentioned CT apparatus 10 is conducive to being configured on a vehicle and is suitable for vehicle-mounted.

[0034] Furthermore, by utilizing the two ends of the rotating frame 200 to be rotatably connected to the first mounting plate 120 and the second mounting plate 130 respectively, the structure of the CT apparatus 10 can be simplified compared to utilizing the two opposite side walls of the rotating frame 200 to be rotatably connected to the first mounting plate 120 and the second mounting plate 130 respectively. By providing the first through hole 122 on the first mounting plate 120 so that the object to be scanned can enter the rotating frame 200 through the first through hole 122, the structure of the CT apparatus 10 can be simplified and the problem of the first mounting plate 120 shielding the object to be scanned can be solved.

[0035] like Figure 2 and Figure 3 As shown, in some embodiments, the second mounting plate 130 is provided with a second through hole 132 which is directly connected to the rotating frame 200. In this way, the weight of the CT apparatus 10 can be further reduced.

[0036] In some embodiments, the first mounting plate 120 and the second mounting plate 130 are missing at one side away from the bottom plate 110, respectively forming a notch 102 communicating with the first through hole 122 and the second through hole 132. In this way, the weight of the CT apparatus 10 can be further reduced.

[0037] In some embodiments, the bottom plate 110, the first mounting plate 120, and the second mounting plate 130 are each provided with at least one window 104. In this way, the weight of the CT apparatus 10 can be further reduced.

[0038] like Figure 4 As shown, in some embodiments, the rotating frame 200 includes a connecting column 210, a first annular plate 220 and a second annular plate 230, and a plurality of connecting columns 210 are spaced and surrounded to form a cylinder 202, and both ends of each connecting column 210 are respectively connected to the first annular plate 220 and the second annular plate 230, and the first annular plate 220 and the second annular plate 230 are respectively rotatably connected to the first mounting plate 120 and the second mounting plate 130. The object to be scanned passes through the first through hole 122 and the first annular plate 220 in sequence and then enters the cylinder 202. Among them, the portion of the first annular plate 220 located outside the cylinder 202 is the first annular flange 222, and the portion of the second annular plate 230 located outside the cylinder 202 is the second annular flange 232. The cylinder 202 is formed by enclosing a plurality of connecting columns 210 , which facilitates the transmission of X-rays emitted by an X-ray source 310 fixed on the cylinder 202 to the detector 320 , and facilitates heat dissipation of the X-ray source 310 and the detector 320 , and can further reduce the weight of the CT apparatus 10 .

[0039] In some embodiments, the rotating frame 200 further includes a first mounting member 240 and a second mounting member 250 facing each other. The first mounting member 240 includes two first lugs 242 and a first connecting base plate 244. The two first lugs 242 are respectively connected to the first annular flange 222 and the second annular flange 232. The first connecting base plate 244 connects the two first lugs 242 to enclose a first accommodating cavity 204. The X-ray source 310 is located in the first accommodating cavity 204 and is disposed on the first connecting base plate 244. The second mounting member 250 includes two second lugs 252 and a second connecting base plate 254. The two second lugs 252 are respectively connected to the first annular flange 222 and the second annular flange 232. The second connecting base plate 254 connects the two second lugs 252 to enclose a second accommodating cavity 206. The detector 320 is located in the second accommodating cavity 206 and is disposed on the second connecting base plate 524. The first mounting member 240 and the second mounting member 250 can enable the X-ray source 310 and the detector 320 to be conveniently and firmly fixed on the side wall of the cylinder 202 .

[0040] In some embodiments, the first lug 242, the first connecting substrate 244, the second lug 252 and the second connecting substrate 254 are all provided with at least one window 208. In this way, the weight of the CT apparatus 10 can be further reduced, and the heat dissipation of the X-ray source 310 and the detector 320 is also facilitated. It should be noted that in the illustrated embodiment, the first connecting substrate 244 and the second connecting substrate 254 can be regarded as only two connecting rods left after the window 208 is formed.

[0041] like Figure 3 and Figure 4 As shown, in some embodiments, the transmission assembly 400 includes a first slewing bearing 410 and a second slewing bearing 420 disposed between the first mounting plate 120 and the second mounting plate 130, and the first slewing bearing 410 and the second slewing bearing 420 are rotatably connected to the first mounting plate 120 and the second mounting plate 130, respectively. The two ends of the rotating frame 200 are fixedly connected to the first slewing bearing 410 and the second slewing bearing 420, respectively. The first slewing bearing 410 has a first channel 412, so that the object to be scanned can enter the rotating frame 200 through the first through hole 122 and the first channel 412 in sequence. In some embodiments, the second slewing bearing 420 has a second channel 422. The rotating frame 200 and the scanning frame 100 are connected to each other in an interval rotation manner through the first slewing bearing 410 and the second slewing bearing 420, which is very convenient for installation and can also effectively reduce friction.

[0042] In some embodiments, a first slewing bearing 410 is provided with a plurality of first threaded holes 414 on one side close to the second slewing bearing 420, and a second slewing bearing 420 is provided with a plurality of second threaded holes 424 on one side close to the first slewing bearing 410. The rotating frame 200 further includes a first threaded column (not shown) and a second threaded column (not shown), the first annular flange 222 is provided with a plurality of first threaded through holes 2222, the second annular flange 232 is provided with a plurality of second threaded through holes 2322, the first threaded column is threadedly connected with the first threaded through holes 2222 and the first threaded holes 414, and the second threaded column is threadedly connected with the second threaded through holes 2322 and the second threaded holes 424. In this way, it is very convenient to disassemble and assemble the rotating frame 200 on the first slewing bearing 410 and the second slewing bearing 420.

[0043] In some embodiments, the first slewing bearing 410 includes a first bearing body 416 and a first annular slide rail 418 disposed on the side of the first bearing body 416 away from the rotating frame 200, a first slide groove (not shown) is provided on the side of the first mounting plate 120 close to the second mounting plate 130, the first slide groove is slidably matched with the first annular slide rail 414, and the first annular slide rail 418 can rotate in the first slide groove. The second slewing bearing 420 includes a second bearing body 426 and a second annular slide rail 428 disposed on the side of the second bearing body 426 away from the rotating frame 200, a second slide groove (not shown) is provided on the side of the second mounting plate 130 close to the first mounting plate 120, the second slide groove is slidably matched with the second annular slide rail 428, and the second annular slide rail 428 can rotate in the second slide groove. In some other embodiments, the inner ring of the slewing bearing is rotatably connected to the mounting plate, and the outer ring of the slewing bearing is fixedly connected to the rotating frame 200, so as to realize the rotatable connection between the rotating frame 200 and the scanning frame 100.

[0044] In some embodiments, since the first mounting plate 120 and the second mounting plate 130 are missing on one side away from the bottom plate 110 , gaps 102 are formed to connect the first through hole 122 and the second through hole 132 , respectively, so that the first slide groove and the second slide groove are both open-loop structures.

[0045] In some embodiments, the outer side surface of the second bearing body 426 is a tooth surface 4262 to mesh with the gear of the driving device and be driven by the driving device to make the second annular slide rail 428 rotate in the second slide groove.

[0046] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A CT apparatus, characterized in that: include: A scanning frame, the scanning frame is U-shaped, comprising a bottom plate and a first mounting plate and a second mounting plate respectively arranged on two opposite sides of the bottom plate; A rotating frame, wherein both ends of the rotating frame are rotatably connected to the first mounting plate and the second mounting plate respectively, the first mounting plate is provided with a first through hole which is in communication with the rotating frame opposite to the first mounting plate, so that the object to be scanned enters the rotating frame through the first through hole, the second mounting plate is provided with a second through hole which is in communication with the rotating frame opposite to the first mounting plate, the first mounting plate and the second mounting plate are missing on one side away from the bottom plate, and the first mounting plate and the second mounting plate respectively form a notch which is in communication with the first through hole and the second through hole; the rotating frame further comprises a first mounting member and a second mounting member which are opposite to each other, the first mounting member forms a first accommodating cavity; the second mounting member forms a second accommodating cavity; and The scanning assembly includes an X-ray source and a detector, wherein the X-ray source and the detector are both arranged on the side wall of the rotating frame, the X-ray source is located in the first accommodating cavity, and the detector is located in the second accommodating cavity; and the X-ray source is directly opposite to the detector.

2. The CT apparatus according to claim 1, characterized in that: It also includes a transmission component, which includes a first slewing bearing and a second slewing bearing arranged between the first mounting plate and the second mounting plate, the first slewing bearing and the second slewing bearing are rotatably connected to the first mounting plate and the second mounting plate respectively, and the two ends of the rotating frame are fixedly connected to the first slewing bearing and the second slewing bearing respectively, and the first slewing bearing has a first channel so that the object to be scanned can enter the rotating frame through the first through hole and the first channel in sequence.

3. The CT apparatus according to claim 2, characterized in that: A plurality of first threaded holes are provided on a side of the first slewing bearing close to the second slewing bearing, and a plurality of second threaded holes are provided on a side of the second slewing bearing close to the first slewing bearing; The rotating frame includes a cylinder, a first annular flange and a second annular flange respectively arranged at opposite ends of the cylinder, and a first threaded column and a second threaded column, the first annular flange is provided with a plurality of first threaded through holes, the second annular flange is provided with a plurality of second threaded through holes, the first threaded column is threadedly connected to the first threaded through hole and the first threaded hole, and the second threaded column is threadedly connected to the second threaded through hole and the second threaded hole.

4. The CT apparatus according to claim 2, characterized in that: The first slewing bearing comprises a first bearing body and a first annular slide rail provided on a side of the first bearing body away from the rotating frame, a first slide groove is provided on a side of the first mounting plate close to the second mounting plate, and the first slide groove is slidably matched with the first annular slide rail; The second slewing bearing includes a second bearing body and a second annular slide rail arranged on the side of the second bearing body away from the rotating frame. A second slide groove is opened on the side of the second mounting plate close to the first mounting plate. The second slide groove is slidably matched with the second annular slide rail.

5. The CT apparatus according to claim 4, characterized in that: The first chute and the second chute are both open-loop structures.

6. The CT apparatus according to claim 4, characterized in that: The outer side surface of the second bearing body is a tooth surface, which is engaged with the gear of the driving device and is driven by the driving device to make the second annular slide rail rotate in the second slide groove.

7. The CT apparatus according to claim 1, characterized in that: The bottom plate, the first mounting plate and the second mounting plate are each provided with at least one window.

8. The CT apparatus according to claim 1, characterized in that: The rotating frame includes a plurality of connecting columns, and a first annular plate and a second annular plate. The plurality of connecting columns are spaced and surrounded to form a cylindrical body, and both ends of each connecting column are respectively connected to the first annular plate and the second annular plate. The first annular plate and the second annular plate are respectively rotatably connected to the first mounting plate and the second mounting plate.

9. The CT apparatus according to claim 8, characterized in that: The first mounting member includes two first lugs and a first connecting substrate, the two first lugs are respectively connected to the first annular plate and the second annular plate, the first connecting substrate connects the two first lugs and encloses to form a first accommodating cavity; the X-ray source is disposed on the first connecting substrate; The second mounting member includes two second lugs and a second connecting substrate. The two second lugs are respectively connected to the first annular plate and the second annular plate. The second connecting substrate connects the two second lugs to enclose a second accommodating cavity. The detector is arranged on the second connecting substrate.

10. The CT apparatus according to claim 9, characterized in that: The first lug, the first connecting substrate, the second lug and the second connecting substrate are each provided with at least one window.

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