A multi-degree of freedom adjustment device for an x-ray tube

Abstract

This application discloses a multi-degree-of-freedom adjustment device for an X-ray tube, belonging to the field of medical device technology. The multi-degree-of-freedom adjustment device for an X-ray tube includes a base, a support frame rotatably mounted on the upper part of the base, an arc-shaped groove on the upper part of the support frame, a tube clamp placed within the arc-shaped groove, the tube clamp rotatably connected to the support frame, a notch on one side of the tube clamp, and a laser lamp installed at the notch. The rotation axis of the support frame is orthogonal to the rotation axis of the tube clamp and lies in the same plane. The width of the arc-shaped groove opening is greater than the diameter of the X-ray tube but smaller than the diameter of the tube clamp; the width of the notch is smaller than the diameter of the X-ray tube. The user can adjust the X-ray tube by placing the tube clamp on the outside of the X-ray tube, then placing the X-ray tube within the arc-shaped groove, and moving the tube clamp into the arc-shaped groove. By rotating the support frame and the tube clamp, the X-ray tube can be rotated in two orthogonal directions, and the cross-shaped laser emitted by the laser lamp can be used to adjust the X-ray tube.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more specifically, to a multi-degree-of-freedom adjustment device for an X-ray tube. Background Technology

[0002] Currently, when radiotherapy equipment provides image-guided treatment to patients, it is necessary to ensure that the X-ray tube and detector are positioned relative to each other, and two sets of cross-fixing are required. The position of the X-ray tube relative to the detector needs to be adjusted to ensure that the rays are completely perpendicular and do not exceed the receiving boundary of the flat plate detector. This requires the device for fixing the X-ray tube to allow the X-ray tube to be adjusted in multiple degrees of freedom to ensure optimal equipment performance.

[0003] A search revealed that Chinese patent CN214008563U discloses an adjustable clamp for X-ray tubes. This device connects the support frame that can hold the X-ray tube to the bracket via a rotating shaft and a bushing, allowing the angle of the X-ray tube to be adjusted directly by rotation after installation. After adjustment, it is locked by a positioning screw, which greatly improves the adjustment efficiency of the X-ray tube during use and facilitates practical use.

[0004] The aforementioned device can only change the spatial position of the X-ray tube by rotating its axis. Since the axis of rotation is not coplanar with the central axis of the X-ray tube, the spatial position of the X-ray tube changes as it rotates around the axis, which is detrimental to precise adjustment of the X-ray tube's position. Therefore, we propose a multi-degree-of-freedom adjustment device for X-ray tubes. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this application is to provide a multi-degree-of-freedom adjustment device for an X-ray tube to solve the problems mentioned in the background art.

[0007] 2. Technical Solution

[0008] This application is achieved through the following technical solution:

[0009] A multi-degree-of-freedom adjustment device for an X-ray tube includes a base, a support frame rotatably mounted on the upper part of the base, an arc-shaped groove on the upper part of the support frame, a tube clamp disposed in the arc-shaped groove, the tube clamp being rotatably connected to the support frame, a notch on one side of the tube clamp, a laser lamp being installed at the notch, and the rotation axis of the support frame being orthogonal to the rotation axis of the tube clamp and being in the same plane.

[0010] As an optional embodiment of the technical solution in this application, the width of the arc-shaped groove opening is greater than the diameter of the X-ray tube and less than the diameter of the tube clamp; the width of the notch is less than the diameter of the X-ray tube.

[0011] As an optional solution to the technical solution of this application, the support frame is U-shaped, the arc grooves are respectively opened on the wing plates on both sides of the support frame, two pipe clamps are provided, the two pipe clamps are respectively rotatably installed on both sides of the support frame, and a support rod is provided between the two pipe clamps. There are at least two support rods, and the two ends of the support rods are respectively fixed to the two pipe clamps.

[0012] As an optional solution to the technical solution of this application, support rods are provided on both sides of the notch, and the laser lamp is detachably connected to the support rods.

[0013] As an optional solution to the technical solution of this application, a geared disc is fixedly connected to the bottom of the support frame, and a first drive mechanism is installed on the base. The output end of the first drive mechanism is connected to the geared disc through a first gear.

[0014] As an optional solution to the technical solution of this application, an arc-shaped rack is fixedly connected to the outside of the pipe clamp, and a second drive mechanism is installed on the support frame. The output end of the second drive mechanism is connected to the arc-shaped rack through a second gear.

[0015] As an optional solution to the technical solution of this application, the base includes a base plate, a vertical support plate is provided above the base plate, the vertical support plate is slidably connected to the base plate through a vertical guide rail, a horizontal support plate is slidably connected to the upper part of the vertical support plate along the horizontal direction, a vertical support plate is slidably connected to the upper part of the horizontal support plate along the longitudinal direction, and the support frame is rotatably mounted above the vertical support plate through a bearing.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] This application allows the X-ray tube to rotate in two orthogonal directions by installing a tube clamp on the X-ray tube and mounting the clamp on a support frame. The position of the X-ray tube can be adjusted by observing the position of the laser lamp at the notch of the tube clamp on the crosshair projected on the flat panel detector, thereby increasing the accuracy of the X-ray tube position adjustment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a multi-degree-of-freedom adjustment device for an X-ray tube;

[0020] Figure 2This is a schematic diagram showing the overall structure of a multi-degree-of-freedom adjustment device for an X-ray tube.

[0021] In the diagram: 1. Base; 101. Base plate; 102. Support plate; 103. Horizontal support plate; 104. Vertical support plate; 2. Support frame; 201. Arc groove; 202. Gear plate; 3. Pipe clamp; 301. Notch; 302. Arc rack; 4. Laser light; 5. Support rod. Detailed Implementation

[0022] The technical solution of this application will now be clearly and completely described in conjunction with the accompanying drawings.

[0023] Please see Figure 1 and Figure 2 This application provides a technical solution:

[0024] A multi-degree-of-freedom adjustment device for an X-ray tube includes a base 1, a support frame 2 rotatably mounted on the upper part of the base 1, an arc-shaped groove 201 opened on the upper part of the support frame 2, a tube clamp 3 provided in the arc-shaped groove 201, the tube clamp 3 being rotatably connected to the support frame 2, a notch 301 opened on one side of the tube clamp 3, a laser lamp 4 being installed at the notch 301, and the rotation axis of the support frame 2 being orthogonal to the rotation axis of the tube clamp 3 and being in the same plane.

[0025] Preferably, the width of the opening of the arc groove 201 is greater than the diameter of the X-ray tube and less than the diameter of the tube clamp 3; the width of the notch 301 is less than the diameter of the X-ray tube; the user can place the tube clamp 3 on the outside of the X-ray tube, and the notch 301 on one side of the tube clamp 3 can avoid the outward protrusion of the X-ray tube shell; then place the X-ray tube in the arc groove 201 and move the tube clamp 3 into the arc groove 201; by rotating the support frame 2 and the tube clamp 3, the X-ray tube can be rotated in two orthogonal directions, and the X-ray tube can be adjusted by using the cross laser emitted by the laser lamp 4.

[0026] Preferably, the support frame 2 is U-shaped, with arc-shaped grooves 201 respectively formed on the flanges on both sides of the support frame 2. Two tube clamps 3 are provided, rotatably mounted on both sides of the support frame 2. A support rod 5 is provided between the two tube clamps 3, with at least two support rods 5, each end of which is fixedly attached to one of the two tube clamps 3. By mounting the two tube clamps 3 on the X-ray tube and using the support rods 5 to fix the distance between the two tube clamps 3, the tube clamps 3 can be confined within the arc-shaped grooves 201 on both sides, increasing the stability of the X-ray tube mounted on this device.

[0027] Preferably, support rods 5 are provided on both sides of the notch 301. The laser lamp 4 is detachably connected to the support rods 5. A geared disc 202 is fixedly connected to the bottom of the support frame 2. A first drive mechanism is installed on the base 1, and the output end of the first drive mechanism is meshed with the geared disc 202 through a first gear. An arc-shaped rack 302 is fixedly connected to the outside of the tube clamp 3. A second drive mechanism is installed on the support frame 2, and the output end of the second drive mechanism is meshed with the arc-shaped rack 302 through a second gear. The user can install the laser lamp 4 at the notch 301, so that the laser lamp 4 covers the outside of the X-ray emission window of the X-ray tube. By using the first drive mechanism and the second drive mechanism to drive the X-ray tube to rotate, the user can observe the position of the laser lamp 4 on the flat panel detector and adjust the position of the X-ray tube.

[0028] Preferably, the base 1 includes a base plate 101, with a vertical support plate 102 above the base plate 101. The vertical support plate 102 is slidably connected to the base plate 101 via a vertical guide rail. A horizontal support plate 103 is slidably connected to the upper part of the vertical support plate 102 along the horizontal direction, and a vertical support plate 104 is slidably connected to the upper part of the horizontal support plate 103 along the vertical direction. The support frame 2 is rotatably mounted above the vertical support plate 104 via bearings. The user can adjust the installation height of the vertical support plate 102 using the vertical guide rail, and change the spatial position of the X-ray tube by adjusting the positions of the horizontal support plate 103 and the vertical support plate 104 on the base plate 101, thereby increasing the degree of freedom in adjusting the X-ray tube.

[0029] Preferably, a lifting adjustment column is provided between the base plate 101 and the vertical support plate 102. The height of the vertical support plate 102 can be adjusted by the lifting adjustment column, and the position of the vertical support plate 102 can be fixed by the nut on the vertical guide rail. A horizontal threaded rod is provided between the horizontal support plate 103 and the vertical support plate 102, and a vertical threaded rod is provided between the longitudinal support plate 104 and the horizontal support plate 103. The planar position between the horizontal support plate 103 and the longitudinal support plate 104 can be adjusted by the horizontal threaded rod and the longitudinal threaded rod.

Claims

1. A multi-degree-of-freedom adjustment device for an X-ray tube, characterized in that: Includes a base (1), on which a support frame (2) is rotatably mounted. An arc-shaped groove (201) is provided on the upper part of the support frame (2), and a pipe clamp (3) is provided in the arc-shaped groove (201). The pipe clamp (3) is rotatably connected to the support frame (2). A notch (301) is provided on one side of the pipe clamp (3), and a laser lamp (4) is installed at the notch (301). The rotation axis of the support frame (2) is orthogonal to the rotation axis of the pipe clamp (3) and is in the same plane.

2. The multi-degree-of-freedom adjustment device for an X-ray tube according to claim 1, characterized in that: The width of the opening of the arc groove (201) is greater than the diameter of the X-ray tube and less than the diameter of the tube clamp (3); the width of the notch (301) is less than the diameter of the X-ray tube.

3. The multi-degree-of-freedom adjustment device for an X-ray tube according to claim 1, characterized in that: The support frame (2) is U-shaped, and the arc groove (201) is respectively opened on the wing plates on both sides of the support frame (2). There are two pipe clamps (3), which are rotatably installed on both sides of the support frame (2). A support rod (5) is provided between the two pipe clamps (3). There are at least two support rods (5), and the two ends of the support rod (5) are respectively fixed to the two pipe clamps (3).

4. The multi-degree-of-freedom adjustment device for an X-ray tube according to claim 3, characterized in that: Support rods (5) are provided on both sides of the notch (301), and the laser lamp (4) is detachably connected to the support rods (5).

5. The multi-degree-of-freedom adjustment device for an X-ray tube according to claim 1, characterized in that: The support frame (2) is fixedly connected to a gear plate (202) at its bottom, and a first drive mechanism is installed on the base (1). The output end of the first drive mechanism is meshed with the gear plate (202) through a first gear.

6. The multi-degree-of-freedom adjustment device for an X-ray tube according to claim 1, characterized in that: An arc-shaped rack (302) is fixedly connected to the outside of the pipe clamp (3), and a second drive mechanism is installed on the support frame (2). The output end of the second drive mechanism is meshed with the arc-shaped rack (302) through a second gear.

7. The multi-degree-of-freedom adjustment device for an X-ray tube according to claim 1, characterized in that: The base (1) includes a base plate (101), and a vertical support plate (102) is provided above the base plate (101). The vertical support plate (102) is slidably connected to the base plate (101) through a vertical guide rail. A horizontal support plate (103) is slidably connected to the upper part of the vertical support plate (102) along the horizontal direction. A vertical support plate (104) is slidably connected to the upper part of the horizontal support plate (103) along the longitudinal direction. The support frame (2) is rotatably mounted above the vertical support plate (104) through a bearing.

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