Performance detection die body for verification of movable O-shaped arm in 3D perspective mode

Abstract

The utility model relates to a performance detection die body for verification of a movable O-shaped arm in a 3D perspective mode, and effectively solves the problem that the spatial resolution and the detection parameter accuracy are relatively low in the 3D perspective mode as parameter detection requirements cannot be met when the performance detection die body is used for conventional inspection. The conventional detection on the patient cannot be met. According to the utility model, stepless regulation can be carried out on the spatial resolution plug-in through the precision regulation and control unit, the spatial resolution plug-in can be diffused in a radial track through the gear set, the position of the spatial resolution plug-in can be modified according to perspective requirements, and the detection requirements on parameters during conventional inspection and use can be met; according to the 3D perspective mode, the spatial resolution and the precision of detection parameters in the 3D perspective mode are improved, a user can be assisted to adjust the spatial resolution plug-in in the angle dial through the pointing scale line and the auxiliary scale line, adjustment can be carried out at any time according to requirements, and the use effect and the random detection requirement are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to O type arm 3D perspective technical field, specifically is a kind of performance detection phantom for detection under mobile O type arm 3D perspective mode. BACKGROUND

[0002] O type arm 3D perspective is an advanced medical imaging technology, it is with the aid of the equipment of O type ring around structure, built-in X-ray emitter and detector, obtains X-ray image from multiple angles by rotating scanning around patient's body, then is reconstructed by computer algorithm, generates intuitive three-dimensional stereoscopic image model, and has the ability of real-time dynamic imaging and updating image in surgery, clearly presents human internal structure for doctor, effectively assists diagnosis, surgical planning and intraoperative operation monitoring etc. Medical process, greatly improve the precision and safety of medical treatment.

[0003] Under O type arm 3D perspective mode, performance detection phantom is placed in the scanning area of O type arm, during the process of mobile O type arm for detection, the detection method of spatial resolution under 3D perspective mode is: select performance detection phantom to be placed in the center of X-ray irradiation field, carry out image acquisition under 3D perspective condition, the minimum line pair number that can be distinguished on display.

[0004] And the performance detection phantom used at present is: the cylinder with diameter not less than 20cm, thickness not less than 15cm, and spatial resolution plug-in is arranged in it, and the inner line of plug-in is C type structure or cross perpendicular structure, and it cannot meet the detection demand of parameter when using in routine examination, so as to cause the situation that spatial resolution and detection parameter precision under 3D perspective mode are relatively low, and it cannot meet the problem of routine detection to patient.

[0005] Therefore, the detection phantom that can meet the detection demand of parameter and increase spatial resolution and detection parameter precision under 3D perspective mode is needed to solve the above problems. UTILITY MODEL CONTENT

[0006] In view of the above situation, to overcome the defects of prior art, the utility model provides a kind of performance detection phantom for detection under mobile O type arm 3D perspective mode, can carry out stepless adjustment to spatial resolution plug-in by precision control unit, and the position of spatial resolution plug-in is adapted according to perspective demand, can meet the detection demand of parameter when using in routine examination, so as to increase spatial resolution and the precision of detection parameter under 3D perspective mode.

[0007] The utility model provides a kind of performance detection phantom for mobile O type arm 3D perspective mode under detection, including detection phantom, it is characterized in that, the inner wall of the detection phantom is fixedly connected with support seat, the inside of the support seat is clamped with angle dial, the inner wall of the angle dial and the inner wall of detection phantom are respectively fixedly connected with first sealed bearing and second sealed bearing, the inner ring of the first sealed bearing and the inner ring of second sealed bearing are respectively fixedly connected with transmission gear and lever, the top of the transmission gear and the top of lever are respectively fixedly connected with first knob and second knob, the top of the first knob is fixedly connected with the bottom of lever, the bottom of transmission gear is fixedly connected with hemispherical bottom column, the outer surface of the hemispherical bottom column is rotatably connected with the inside of angle dial, the top of the second knob and the upper surface of detection phantom are respectively fixedly connected with pointing scale line and a plurality of auxiliary scale lines, precision control unit is arranged in the inside of detection phantom.

[0008] The above technical solution has the following advantages:

[0009] (1) In the present application, the precision control unit can adjust the spatial resolution plug infinitely, and the gear set can make the spatial resolution plug diffuse in a radial trajectory. The position of the spatial resolution plug can be adjusted according to the perspective requirements, and the detection parameters can be detected during regular inspection, thereby increasing the accuracy of spatial resolution and detection parameters in 3D perspective mode.

[0010] (2) In the present application, the pointing scale line and the auxiliary scale line can assist the user in adjusting the spatial resolution plug inside the angle dial. The adjustment can be made directly by the lever without disassembling the angle dial, and the adjustment can be made at any time according to the requirements. This not only saves time and effort, but also increases the use effect and random detection requirements. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a whole structure schematic diagram of the utility model detection phantom;

[0012] Figure 2 It is a cross-sectional structure schematic diagram of the utility model detection phantom;

[0013] Figure 3 It is a cross-sectional structure schematic diagram of the utility model angle dial;

[0014] Figure 4 It is a sliding seat structure schematic diagram of the utility model;

[0015] Figure 5 It is a chassis structure schematic diagram of the utility model;

[0016] Figure 6 It is a part of detail structure schematic diagram of the utility model;

[0017] Figure 7 This is a schematic diagram of the hemispherical sliding column structure of this utility model;

[0018] Figure 8 This is a schematic diagram of the transmission gear structure of this utility model. Detailed Implementation

[0019] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 8 As will be clearly shown in the detailed description of the embodiments, all structural contents mentioned in the following embodiments are based on the accompanying drawings.

[0020] Example 1: This example provides a performance testing phantom for verification in 3D perspective mode using a movable O-arm, such as... Figure 1 , Figure 2 and Figure 6 As shown, the device includes a detection mold 1. A support base 9 is fixedly connected to the inner wall of the detection mold 1. An angle scale 5 is snapped into the inside of the support base 9. A first sealed bearing 20 and a second sealed bearing 6 are fixedly connected to the inner wall of the angle scale 5 and the inner wall of the detection mold 1, respectively. A transmission gear 21 and a lever 7 are fixedly connected to the inner ring of the first sealed bearing 20 and the inner ring of the second sealed bearing 6, respectively. A first knob 8 and a second knob 2 are fixedly connected to the top of the transmission gear 21 and the top of the lever 7, respectively. The top of the first knob 8 is fixedly connected to the bottom of the lever 7. A hemispherical base column 23 is fixedly connected to the bottom of the transmission gear 21. The outer surface of the hemispherical base column 23 is rotatably connected to the inside of the angle scale 5. A pointing scale line 4 and several auxiliary scale lines 3 are fixedly connected to the top of the second knob 2 and the upper surface of the detection mold 1, respectively. A precision adjustment unit is provided inside the detection mold 1.

[0021] In the use of the detection model body 1, the spatial resolution plug-in 10 is in the initial state of embracing the center of the angle scale disc 5, and in use, the second knob 2 can be directly rotated to drive the shift rod 7 to rotate in the second sealed bearing 6, the first knob 8 is driven to rotate by the shift rod 7, the transmission gear 21 is driven to rotate in the first sealed bearing 20 by the first knob 8, the transmission gear 21 can rotate in the angle scale disc 5 through the bottom hemispherical column 23, and the hemispherical column 23 can assist the transmission gear 21 to rotate better, reduce the friction of the transmission gear 21, and cooperate with the first sealed bearing 20 to ensure the stability of the transmission gear 21. The precision control unit is directly driven by the transmission gear 21 to operate, and the eleven resolution plug-ins are diffused to the edge of the angle scale disc 5 in a radial trajectory. In the adjustment process, the user can assist in adjusting according to the pointing scale line 4 and the auxiliary scale line 3. In the process of adjusting the resolution plug-in, the rotation of the second knob 2 can be stopped at any time according to the detection requirement, so that the resolution plug-in can be infinitely adjusted to adapt to different detection conditions.

[0022] In example 2, on the basis of example 1, the improvement of this embodiment is that, as shown in Figure 3 、 Figure 5 and Figure 7 , the precision control unit comprises a bottom disc 15, the bottom surface of the bottom disc 15 is fixedly connected with the inner bottom wall of the angle scale disc 5, the inside of the angle scale disc 5 is provided with a top disc 13, the bottom surface of the top disc 13 is fixedly connected with a hemispherical ball 24, the upper surface of the bottom disc 15 is provided with a hemispherical rolling groove 17, the outer surface of the hemispherical ball 24 is rotatably connected with the inside of the hemispherical rolling groove 17, and the upper surface of the top disc 13 is provided with eleven arc-shaped tracks 11.

[0023] In the use of the detection model body 1, in the process of the movement of the resolution plug-in, the top disc 13 rotates in the hemispherical rolling groove 17 through the hemispherical ball 24, which increases the stability of the resolution plug-in in the movement process, and the resolution plug-in can move in the arc-shaped track 11, so that the resolution plug-in is conveniently controlled.

[0024] In example 3, on the basis of example 2, the improvement of this embodiment is that, as shown in Figure 6 , the outer surface of the top disc 13 is fixedly connected with an arc-shaped rack 22, and the outer surface of the arc-shaped rack 22 is engaged with the outer surface of the transmission gear 21.

[0025] In the use of the detection model body 1, the transmission gear 21 can directly roll on the arc-shaped rack 22, and the top disc 13 is driven to rotate by rolling the arc-shaped rack 22, so that the resolution plug-in is conveniently adjusted, and the resolution plug-in is conveniently adjusted by the outer second knob 2.

[0026] Embodiment 4, on the basis of embodiment 3, the improvement of this embodiment is that, as shown in Figure 4 、 Figure 5 and Figure 6 The upper surface of the chassis 15 is provided with four arc-shaped balance grooves 12, the inside of each arc-shaped balance groove 12 is slidably connected with a hemispherical sliding column 19, the top end of each hemispherical sliding column 19 is fixedly connected with a connecting plate 18, and the outer surface of each connecting plate 18 is fixedly connected with the outer surface of the top disc 13.

[0027] When the detection model 1 is used, in the process of rotating the top disc 13, the top disc 13 drives the connecting plate 18 to rotate, and the connecting plate 18 drives the hemispherical sliding column 19 to slide in the arc-shaped balance groove 12, which can increase the stability of the rotation of the top disc 13. Since the arc-shaped balance grooves 12 are uniformly distributed on the surface of the chassis 15, the balance of the rotation of the top disc 13 can be effectively ensured when the top disc 13 rotates, thereby ensuring the regulation effect of the spatial resolution plug-in.

[0028] Embodiment 5, on the basis of embodiment 4, the improvement of this embodiment is that, as shown in Figure 4 The upper surface of the chassis 15 is fixedly connected with eleven sliding seats 14, the inside of each sliding seat 14 is slidably connected with a rectangular sliding block 16, the top end of each rectangular sliding block 16 penetrates through the arc-shaped track 11 and extends above the top disc 13, and the top end of each rectangular sliding block 16 is fixedly connected with a spatial resolution plug-in 10. The materials of the above structures are all organic glass.

[0029] When the detection model 1 is used, by rotating the top disc 13, the spatial resolution plug-in 10 can drive the rectangular sliding block 16 to slide in the sliding seat 14 under the action of the arc-shaped track 11, effectively and accurately adjusting the spatial resolution plug-in 10. Moreover, the materials of the above structures are all organic glass, which greatly reduces the influence on the mobile O-shaped arm 3D perspective mode detection, and facilitates the user to directly adjust the internal spatial resolution plug-in 10 outside the detection model 1, greatly increasing the use effect, so that it can be applied to various detection situations.

[0030] The above is only to illustrate the present application, it should be understood that the present application is not limited to the above embodiments, various modifications in accordance with the idea of the present application are within the scope of the present application.

Claims

1. A performance testing phantom for mobile O-arm 3D fluoroscopy mode verification, comprising a testing phantom (1), characterized in that: The inner wall of the detection model (1) is fixedly connected with a support seat (9), the inside of the support seat (9) is clamped with an angle scale disc (5), the inner wall of the angle scale disc (5) and the inner wall of the detection model (1) are fixedly connected with a first sealing bearing (20) and a second sealing bearing (6) respectively, the inner ring of the first sealing bearing (20) and the inner ring of the second sealing bearing (6) are fixedly connected with a transmission gear (21) and a lever (7) respectively, the top end of the transmission gear (21) and the top end of the lever (7) are fixedly connected with a first knob (8) and a second knob (2) respectively, the top end of the first knob (8) is fixedly connected with the bottom end of the lever (7), the bottom end of the transmission gear (21) is fixedly connected with a hemispherical bottom column (23), the outer surface of the hemispherical bottom column (23) is rotatably connected with the inside of the angle scale disc (5), the top end of the second knob (2) and the upper surface of the detection model (1) are fixedly connected with a pointing scale line (4) and a plurality of auxiliary scale lines (3) respectively, and the inside of the detection model (1) is provided with a precision control unit.

2. The performance testing phantom for mobile O-arm 3D fluoroscopy mode calibration according to claim 1, characterized in that: The precision control unit comprises a bottom disc (15), the bottom surface of the bottom disc (15) is fixedly connected with the inner bottom wall of the angle scale disc (5), the inside of the angle scale disc (5) is provided with a top disc (13), the bottom surface of the top disc (13) is fixedly connected with a hemispherical ball (24), the upper surface of the bottom disc (15) is provided with a hemispherical rolling groove (17), the outer surface of the hemispherical ball (24) is rotatably connected with the inside of the hemispherical rolling groove (17), and the upper surface of the top disc (13) is provided with eleven arc-shaped tracks (11).

3. The performance testing phantom for mobile O-arm 3D fluoroscopy mode calibration according to claim 2, characterized in that: The outer surface of the top disc (13) is fixedly connected with an arc-shaped rack (22), and the outer surface of the arc-shaped rack (22) is engaged with the outer surface of the transmission gear (21).

4. The performance testing phantom for mobile O-arm 3D fluoroscopy mode verification according to claim 2, characterized in that: The upper surface of the bottom disc (15) is provided with four arc-shaped balance grooves (12), each arc-shaped balance groove (12) is slidably connected with a hemispherical sliding column (19) inside, the top end of each hemispherical sliding column (19) is fixedly connected with a connecting plate (18), and the outer surface of each connecting plate (18) is fixedly connected with the outer surface of the top disc (13).

5. The performance testing phantom for mobile O-arm 3D fluoroscopy mode verification according to claim 2, characterized in that: The upper surface of the bottom disc (15) is fixedly connected with eleven sliding seats (14), each sliding seat (14) is slidably connected with a rectangular sliding block (16) inside, the top end of each rectangular sliding block (16) penetrates through the arc-shaped track (11) and extends above the top disc (13), and the top end of each rectangular sliding block (16) is fixedly connected with a spatial resolution plug-in (10), and the materials of the above structure are all organic glass.

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