CN111184524A

CN111184524A - Scanning device, correction method thereof and medical detection equipment

Info

Publication number: CN111184524A
Application number: CN202010093517.5A
Authority: CN
Inventors: 刘明
Original assignee: Neusoft Medical Systems Co Ltd
Current assignee: Neusoft Medical Systems Co Ltd; Beijing Neusoft Medical Equipment Co Ltd
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2020-05-22

Abstract

The application provides a scanning device, a correction method thereof and medical detection equipment. The scanning device comprises a bracket component, a multi-dimensional adjusting component, a first detection component and a second detection component, wherein the multi-dimensional adjusting component comprises a first support arm, a second support arm, a support arm support and an arc-shaped support arm. The first support arm is in pin joint with the support assembly through a first rotating shaft, the first support arm is in pin joint with the second support arm through a second rotating shaft, the support arm support is in pin joint with the second support arm through a third rotating shaft, and the arc-shaped support arm is in sliding connection with the support arm support. The arc support arm is provided with correction portion, and first support arm disposes the alignment frame, and the alignment center line of alignment frame coincides with the axis of first pivot. When the support arm frame is in the zero setting position, the first support arm and the arc-shaped support arm rotate relative to the support assembly until the calibration center line is coincident with the center line of the correction part, and the second rotating shaft and the fourth rotating axis are set to be zero. The first support arm and the arc-shaped support arm are alternately rotated and adjusted, and the operation requirement is low.

Description

Scanning device, correction method thereof and medical detection equipment

Technical Field

The present application relates to the field of medical image processing technologies, and in particular, to a scanning device, a calibration method thereof, and a medical detection apparatus.

Background

The blood vessel machine equipment detects through a bulb tube and a detector which are arranged on a main frame so as to obtain an accurate and clear three-dimensional focus image. The main frame needs to flexibly adjust the geometric size state of the bulb and the detector, so that the blood vessel machine equipment needs to have three-dimensional scanning capability of head position and side position. The main frame comprises a multi-dimensional rotating assembly formed by a plurality of rotating arms which rotate relatively, and the bulb tube and the detector are arranged on the multi-dimensional rotating assembly so as to adjust and detect postures and angles along with the multi-dimensional rotating assembly.

In order to adjust the zero position precision of the multi-dimensional rotating assembly, one of the adjusting steps is as follows: the collimator mounted on the bulb tube needs to be removed, the high-precision level meter is placed on the upper mounting surface of the bulb tube, then the bulb tube is rotated to enable the level meter to be kept horizontal, and the mounting position of the bulb tube is set to be zero. In another adjusting step, the laser leveling instrument with the vertical surface leveling function is placed on the bed plate, the C-shaped cantilever provided with the bulb tube and the detector in the multi-dimensional rotating assembly is rotated by 90 degrees so as to enable the C-shaped cantilever to be in a horizontal state, and then the position of the laser level instrument on the bed plate is adjusted to form a laser beam surface. The spindles in the multi-dimensional rotating assembly are then rotated so that the midpoint of the Capture falls within the plane of the laser beam to null one of the spindles.

Therefore, the conventional null adjustment method of the blood vessel machine equipment is to perform adjustment one by one through each joint of the multi-dimensional rotating assembly. The zero position precision of the multi-dimensional rotating assembly can be adjusted in place by a special tool and an adjusting method in each adjustment, the adjusting steps are complex to operate, the requirements on the adjusting precision judgment and the adjusting skill of operators are high, and the adjusting efficiency is extremely low.

Disclosure of Invention

The application provides a scanning device, a correction method thereof and medical detection equipment, which have the characteristics of convenient zero precision adjustment, simple adjustment steps, low skill requirement and high adjustment efficiency.

Specifically, the method is realized through the following technical scheme:

on one hand, the scanning device comprises a bracket component, a multi-dimensional adjusting component, a first detection component and a second detection component, wherein the multi-dimensional adjusting component is rotatably connected to the bracket component, and the first detection component and the second detection component are arranged on the multi-dimensional adjusting component; the axis of the first rotating shaft is parallel to the axis of the second rotating shaft, and the axis of the second rotating shaft is perpendicular to the axis of the third rotating shaft;

the arc-shaped support arm is connected to the support arm frame in a sliding mode and rotates around a fourth rotation axis, the first detection assembly and the second detection assembly are respectively installed at two ends of the arc-shaped support arm, a correction part is arranged on the radial outer peripheral wall of the arc-shaped support arm, the first support arm is provided with a calibration frame, and the calibration center line of the calibration frame is overlapped with the axis of the first rotation shaft;

when the supporting arm frame is at a zero setting position, the first supporting arm and the arc-shaped supporting arm rotate relative to the support assembly until a calibration center line of the calibration frame is coincident with a center line of the correction part, and the second rotating shaft and the fourth rotating axis are set to zero.

Optionally, the arc-shaped support arm is of an arc-shaped structure, and the correction part and the arc-shaped support arm are integrally processed, wherein the correction part comprises a hole-shaped groove arranged on the arc-shaped support arm; or the correcting part comprises a correcting piece fixedly connected with the arc-shaped support arm, and the correcting piece is provided with a correcting central line.

Optionally, the calibration frame includes a flange mounting opening configured on the first support arm, the flange mounting opening is used for mounting a calibration device for outputting calibration light, and the calibration light coincides with the calibration center line.

Optionally, the support arm support is configured with a first adjusting plane parallel to the third rotating shaft; the first adjusting plane is used for placing a level and the support arm support is set to be zero when bubbles of the level are centered.

Optionally, the bracket assembly is provided with a first marking line, and the first arm is provided with a second marking line; when the first marking line and the second marking line are in the same straight line, the first rotating shaft is set to be zero.

Optionally, the first detection assembly comprises a telescopic assembly mounted to the arc-shaped support arm and an anti-collision rotating assembly rotatably mounted to the telescopic assembly, the anti-collision rotating assembly rotates relative to the telescopic assembly about a fifth axis of revolution, the anti-collision rotating assembly is configured with a second adjustment plane parallel to the fifth axis of revolution, and the anti-collision rotating assembly rotates relative to the telescopic assembly to adjust the fifth axis of revolution of the anti-collision rotating assembly to be set to zero; wherein the second adjustment plane is used for placing the level and is set to zero when the bubble of the level is centered.

Optionally, the telescopic assembly comprises at least two layers of sleeves which are connected in a sleeved mode, and the telescopic assembly is telescopic along the fifth rotation axis direction and is at a standard telescopic value, so that the telescopic assembly is set to be zero.

Optionally, the second detection assembly includes a bulb and a collimator rotatably connected to the bulb, the bulb and the telescopic assembly are respectively mounted at two ends of the arc-shaped support arm, the collimator is arranged opposite to the anti-collision rotating assembly, and the collimator rotates and centers around a sixth rotation axis relative to the bulb according to the exposure image, so that the sixth rotation axis is set to zero.

In another aspect, a calibration method for a scanning device is provided, where the scanning device includes a bracket assembly, a multi-dimensional adjustment assembly rotatably connected to the bracket assembly, and a first detection assembly and a second detection assembly mounted on the multi-dimensional adjustment assembly, the multi-dimensional adjustment assembly includes a first support arm, a second support arm, a support arm support, and an arc-shaped support arm slidably disposed on the support arm support, the first support arm is pivotally connected to the bracket assembly via a first rotating shaft, the first support arm is pivotally connected to the second support arm via a second rotating shaft, and the support arm support is pivotally connected to the second support arm via a third rotating shaft; the axis of the first rotating shaft is parallel to the axis of the second rotating shaft, and the axis of the second rotating shaft is perpendicular to the axis of the third rotating shaft;

the arc-shaped support arm is connected to the support arm frame in a sliding mode and rotates around a fourth rotation axis, the first detection assembly and the second detection assembly are respectively installed at two ends of the arc-shaped support arm, a correction part is arranged on the radial outer peripheral wall of the arc-shaped support arm, the first support arm is provided with a calibration frame, and the calibration center line of the calibration frame is overlapped with the first rotation axis; the correction method comprises the following steps:

s101, zeroing the support arm support;

s102, mounting a laser transmitter to a calibration frame, wherein a laser beam output by the laser transmitter is overlapped with the axis of the first rotating shaft;

s103, rotating the first support arm relative to the support assembly to enable the correcting part to deviate towards the laser beam direction;

s104, the arc-shaped support arm is connected to a support arm frame in a sliding mode, so that the correction portion rotates around the fourth rotation axis and deviates towards the laser beam direction;

and S105, repeatedly executing S103 and S104 until the laser beam output by the laser transmitter is superposed with the central line of the correcting part, and setting the second rotating shaft and the fourth rotating axis to be zero.

Optionally, the mounting the laser transmitter to the calibration rig comprises:

mounting the laser transmitter on a flange mounting port, wherein the flange mounting port is configured as a groove structure for mounting the first support arm on the calibration frame;

and starting the laser transmitter, and outputting a laser beam to the arc-shaped support arm direction by the laser transmitter, wherein the calibration center line is superposed with the laser beam.

Optionally, the zeroing the support arm support includes:

placing a level on a first adjusting plane configured on the support arm frame, wherein the first adjusting plane is parallel to the third rotating shaft;

and rotating the support arm frame relative to the second support arm to adjust the bubble centering of the level gauge.

Optionally, the correction method further comprises:

the first arm is rotated relative to the bracket assembly 10, so that the first marking line arranged on the bracket assembly and the second marking line arranged on the first arm are in the same straight line, and the first rotating shaft is set to zero.

Optionally, the first detection assembly comprises a telescopic assembly mounted to the arc-shaped support arm and an anti-collision rotating assembly rotatably mounted to the telescopic assembly, and the anti-collision rotating assembly rotates around a fifth rotation axis relative to the telescopic assembly;

rotating the arc-shaped support arm about the fourth axis of rotation such that a second plane of adjustment of the anti-collision swivel assembly configuration is parallel to a horizontal plane, wherein the second plane of adjustment is parallel to the fifth axis of rotation;

placing a level on the second adjustment plane;

and rotating the anti-collision rotating assembly relative to the telescopic assembly to adjust the bubble of the level gauge to be centered, and setting a fifth revolution axis of the anti-collision rotating assembly to be zero.

Optionally, the telescopic assembly comprises at least two layers of sleeve sleeved connection;

extending the telescoping assembly in the direction of the fifth axis of rotation;

and when the measured elongation value of the telescopic assembly is equal to the standard elongation value, the telescopic assembly is set to be zero.

Optionally, the second detection assembly includes a bulb and a collimator rotatably connected to the bulb, the bulb and the telescopic assembly are respectively mounted at two ends of the arc-shaped support arm, and the collimator is disposed opposite to the anti-collision rotating assembly;

rotating the collimator relative to the bulb tube around a sixth rotation axis and outputting an exposure image;

displaying the exposure image through a display device;

and driving the collimator to rotate according to the relative position of the exposure image of the collimator and the display frame of the display equipment, so that the exposure image is centered and symmetrical relative to the display frame, and then setting the sixth rotation axis to be zero.

In another aspect, a medical detection apparatus is provided, comprising a carrying body, a control body, and a scanning device as described above, the scanning device being communicatively connected with the control body.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the third rotating shaft is in a zero setting state, the first support arm and the arc-shaped support arm are gradually finely adjusted, so that the correcting part is close to the direction of the calibration center line of the calibration frame until the calibration center line of the calibration frame is overlapped with the center line of the correcting part, the second rotating shaft and the fourth rotating axis are simultaneously set to be zero, and the adjusting efficiency is high. The first support arm and the arc-shaped support arm are alternately rotated and adjusted, so that the second rotating shaft and the fourth rotating axis are simultaneously set to be zero, the requirement on operation skills is low, the accuracy of the adjustment position is determined by the alignment of the line and the line, and the observation convenience is good.

Drawings

Fig. 1 is a schematic structural diagram of a scanning apparatus shown in accordance with an exemplary embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a scanning apparatus according to an exemplary embodiment of the present disclosure, in which a level is placed on a first adjustment plane to perform zero adjustment of a support arm support.

FIG. 3 is a schematic structural diagram illustrating alignment rays coinciding with an alignment centerline during zero adjustment of the second and fourth axes of rotation according to an exemplary embodiment of the present disclosure.

FIG. 4 is a cross-sectional structural schematic diagram illustrating alignment rays coincident with an alignment centerline of the present disclosure according to an exemplary embodiment.

Fig. 5 is a schematic structural diagram illustrating that the first mark line and the second mark line are in the same straight line when the first rotation axis position is zero-adjusted according to an exemplary embodiment of the present disclosure.

Fig. 6 is a schematic structural view illustrating the anti-collision rotation assembly with the fifth axis of revolution zero according to an exemplary embodiment of the present disclosure.

FIG. 7 is a schematic diagram illustrating the configuration of the retraction assembly when it is reset according to an exemplary embodiment of the present disclosure.

In the drawings, a stent assembly 10; a first marking line 11; a multi-dimensional adjustment assembly 20; a first arm 21; a first rotating shaft 211; a second rotating shaft 212; a flange mounting port 213; a second marking line 214; a second support arm 22; a third rotating shaft 221; a support arm frame 23; a first adjustment plane 231; an arc-shaped support arm 24; a correcting section 241; a positioning groove 242; a photosensitive element 243; a first detection assembly 30; the anti-collision rotation assembly 31; a second adjustment plane 311; a telescoping assembly 32; a second sensing assembly 40; a collimator 41; a bulb 42; a level gauge 50; a calibration device 60; the light rays 61 are collimated.

Detailed Description

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

As shown in fig. 1, the scanning device is applied to DSA equipment such as a blood vessel machine, and is used for quickly and accurately adjusting a bulb 42 and a detector to a detection part to perform a three-dimensional scanning function. The scanning device comprises a support assembly 10, a multi-dimensional adjusting assembly 20 rotatably connected to the support assembly 10, and a first detecting assembly 30 and a second detecting assembly 40 mounted on the multi-dimensional adjusting assembly 20. The multi-dimensional adjusting assembly 20 comprises a first support arm 21, a second support arm 22, a support arm support 23 and an arc-shaped support arm 24 slidably disposed on the support arm support 23, the first support arm 21 is pivotally connected to the support assembly 10 via a first rotating shaft 211, the first support arm 21 is pivotally connected to the second support arm 22 via a second rotating shaft 212, and the support arm support 23 is pivotally connected to the second support arm 22 via a third rotating shaft 221. The axis of the first rotating shaft 211 is parallel to the axis of the second rotating shaft 212, and the axis of the second rotating shaft 212 is perpendicular to the axis of the third rotating shaft 221.

The arc-shaped support arm 24 slides along the support arm support 23 and rotates around a fourth rotation axis, and the first detection component 30 and the second detection component 40 are respectively installed at two ends of the arc-shaped support arm 24. The radial periphery wall of arc support arm 24 is provided with correction portion 241, first support arm 21 is configured with the calibration frame, the calibration central line of calibration frame with the axis coincidence of first pivot 211.

When the support arm support 23 is at the zero position, the first arm support 21 and the arc-shaped arm support 24 rotate relative to the support assembly 10 until the alignment center line of the alignment rack coincides with the center line of the correction portion 241, and the second rotating shaft 212 and the fourth rotating axis are set to zero.

The first arm 21, the second arm 22, the support arm 23 and the arc-shaped arm 24 are all rigid structural members made of rigid materials and having stable shapes. The carriage assembly 10 is mounted to a stationary base object to maintain the position of the scanning apparatus stable. For example, the bracket assembly 10 is mounted at the top of a building, at the upper beam of a suspension, etc. The first arm 21 is rotatably connected to the carriage assembly 10 via a first rotating shaft 211 and can rotate around the axis of the first rotating shaft 211 relative to the carriage assembly 10, and the second arm 22, the support arm 23 and the arc-shaped arm 24 connected to the first arm 21 all rotate relative to the carriage assembly 10. That is, the first arm 21 is driven by the first power member to rotate about the first rotation axis 211. During zeroing of the scanning device, the first rotation axis 211 needs to be adjusted to zero.

The second arm 22 is pivotally connected to the first arm 21 via a second pivot 212, so that the second arm 22 can rotate around the second pivot 212 relative to the first arm 21, and the support arm 23 connected to the second arm 22 and the arc-shaped arm 24 rotate relative to the first arm 21. That is, the second arm 22 is driven by the second power member to rotate around the axis of the second rotating shaft 212. During the zeroing of the scanning apparatus, the second shaft 212 needs to be adjusted to zero. The first rotating shaft 211 and the second rotating shaft 212 are arranged in parallel, so that the support arm support 23 and the arc-shaped support arm 24 form a swing arm structure, and the swing range is expanded.

As shown in fig. 2, the supporting arm support 23 is pivotally connected to the second arm 22 via a third rotating shaft 221, so that the supporting arm support 23 can rotate around the third rotating shaft 221 relative to the second arm 22, and the arc-shaped arms 24 connected to the supporting arm support 23 rotate relative to the second arm 22. That is, the support arm support 23 is driven by the third power member to rotate around the third rotating shaft 221, and the zeroing adjustment of the third rotating shaft 221 is required in the zeroing process of the scanning apparatus. The second rotating shaft 212 and the third rotating shaft 221 are located at two ends of the second arm 22, and the second rotating shaft 212 and the third rotating shaft 221 are perpendicular to each other, so that the arc-shaped arm 24 can swing and rotate relative to the first arm 21. The first and

second sensing members

30 and 40 mounted at both ends of the arc arm 24 move to different sensing angles along with the arc arm 24.

The arc-shaped support arm 24 is slidably disposed on the support arm support 23, wherein the support arm support 23 is provided with an arc-shaped chute and a fourth power member disposed on the chute. The fourth power member drives the arc-shaped support arm 24 slidably disposed in the sliding slot to move, so that the arc-shaped support arm 24 rotates around the fourth rotation axis corresponding to the sliding slot, thereby transmitting the first detecting component 30 and the second detecting component 40 to different detecting angles.

As shown in fig. 3 and 4, the correcting portion 241 is disposed on the radial outer peripheral wall of the arc arm 24 as a reference position for zero setting correction, so that the correcting portion 241 can move relative to the calibration stand during the rotation of the arc arm 24. Wherein the calibration frame is located on the first arm 21 and the relative position is fixed. The correcting portion 241 moves along with the rotation of the first arm 21 and the movement of the arc-shaped arm 24, so that the center line of the correcting portion 241 gradually approaches to the correcting portion along with the alternating movement or the synchronous movement of the first arm 21 and the arc-shaped arm 24 until the center line of the correcting rack coincides with the center line of the correcting portion 241, and then the second rotating shaft 212 and the fourth rotating axis are simultaneously set to zero.

The third rotating shaft 221 is in a zero setting state, and the first support arm 21 and the arc-shaped support arm 24 are gradually fine-tuned to enable the correcting portion 241 to approach towards the direction of the calibration center line of the calibration frame until the calibration center line of the calibration frame coincides with the center line of the correcting portion 241, so that the second rotating shaft 212 and the fourth rotating axis are simultaneously set to zero, and the adjusting efficiency is high. The alternate rotational adjustment of the first arm 21 and the curved arm 24 to simultaneously zero the second pivot 212 and the fourth pivot axis requires less skill in the operation, line-to-line alignment to determine the accuracy of the adjustment position, and ease of viewing.

The arc-shaped arm 24 is in an arc structure, and the fourth rotation axis thereof is basically coincident with the central line of the chute of the support arm frame 23. Namely, the sliding track of the arc-shaped support arm 24 along the support arm support 23 is the arc formed by the sliding grooves. The correcting part 241 is synchronously machined in the process of machining the external dimension of the arc-shaped support arm 24, and the machining position of the correcting part 241 on the arc-shaped support arm 24 is accurate. The correcting portion 241 is integrally formed with the arc arm 24, and the processing position accuracy of the correcting portion 241 is high.

Optionally, the center line of the correcting portion 241 is perpendicular to the axis of the third rotating shaft 221, and the center line of the correcting portion 241 is located in the radial direction of the arc-shaped support arm 24 and intersects with the axis of the fourth rotating axis. When the axis of the third rotating shaft 221 is in a horizontal state and the calibration center line of the calibration stand coincides with the center line of the correction part 241, the center line of the correction part 241 is in a vertical state perpendicular to the horizontal plane.

The correcting portion 241 is directly formed on the arc arm 24, for example, the correcting portion 241 is formed by a linear rib, a linear groove or a hole-shaped groove structure disposed on the arc arm 24, so that the correcting portion 241 and the arc arm 24 are integrally formed, thereby improving the position accuracy of the correcting portion 241. When the correction part 241 is a linear groove or rib structure, the correction part 241 and the calibration part are aligned by aligning the line with the line or the surface with the surface, and the observation convenience is good. In one embodiment, the correcting portion 241 includes a hole-shaped groove disposed on the arc-shaped support arm 24. In the present embodiment, the hole-shaped groove is configured as a circular counterbore structure, wherein the center line of the correcting portion 241 is the axis of the counterbore. For example, the correction portion 241 can be configured as a blind hole or a through hole with a bore diameter of 2-5 mm, and if the correction portion 241 is configured as a through hole with a bore diameter of 2mm, 3mm, 4mm, or 5mm, the laser beam can be determined to coincide with the center line of the correction portion 241 by passing through the correction portion 241, so that the second rotating shaft 212 and the fourth rotating axis are simultaneously set to zero. Optionally, the radial outer peripheral wall of the arc-shaped support arm 24 is provided with a positioning groove 242, and the correction portion 241 is located in the positioning groove 242 to improve the recognizability of the correction portion 241. Optionally, the bottom of the hole of the calibration part 241 is provided with a photosensitive element 243 for sensing the light output by the calibration part. When the light receiving element 243 senses the stably irradiated light, it can be determined that the calibration center line of the calibration frame coincides with the center line of the calibration portion 241, so that the second rotating shaft 212 and the fourth rotating axis are simultaneously set to zero.

In another embodiment, the correcting portion 241 includes a correcting member attached to the curved arm 24, the correcting member having a correcting centerline. The calibration member is provided as a circumscribing structural member mounted to the arcuate arm 24 and has a calibration centerline that represents the center position. Optionally, the calibration member is a cylindrical structure and is connected to the arc-shaped arm 24 in an interference fit manner, and the center portion of the calibration member has a light sensing element 243 for sensing light output by the calibration portion. Alternatively, the calibration member is a cylindrical protrusion, and the end tip of the cylindrical protrusion points to the calibration portion, so that the calibration center line of the calibration frame can coincide with the center line of the calibration portion 241, so that the second rotating shaft 212 and the fourth rotating axis are simultaneously zeroed.

In one embodiment, as shown in fig. 5, the calibration stand includes a flange mounting opening 213 disposed on the first arm 21, the flange mounting opening 213 is used for mounting the calibration device 60 outputting a calibration light 61, and the calibration light 61 coincides with the calibration center line.

The first arm 21 is mounted to the bracket assembly 10 via a first pivot 211, and the axial positions of the two are kept stable. The flange mounting port 213 is designed to be a taper hole or a stepped hole structure, and is used for positioning the mounting accuracy of the calibration device 60, so that the center line of the calibration device 60 coincides with the calibration center line of the calibration frame, wherein the standard light of the calibration device 60 has the characteristics of small change of the line diameter, convenience in observation and the like. Alternatively, the calibration means 60 is configured as a means capable of outputting a standard light such as a laser beam, in which the shape and the line diameter of the laser beam are small in variation and easy to observe by a user so as to adjust the laser beam to coincide with the center line of the correction portion 241.

The supporting arm support 23 is pivotally connected to the second arm 22 via a third shaft 221, and the supporting arm support 23 rotates around the third shaft 221 relative to the second arm 22. Optionally, the third rotation shaft 221 is parallel to the horizontal plane. In an embodiment, the supporting arm support 23 is configured with a first adjusting plane 231 parallel to the third rotating shaft 221; wherein the first adjustment plane 231 is used for placing the level 50 and the third rotation shaft 221 is set to zero when the bubble of the level 50 is centered.

In the embodiment, the multi-dimensional adjusting assembly 20 is mounted on the bracket assembly 10, and the first adjusting plane 231 is disposed on the surface of the supporting arm 23 and is perpendicular to the horizontal plane or parallel to the horizontal plane when the supporting arm 23 is in the zero setting state. When the supporting arm frame 23 is machined, the first adjusting plane 231 is machined, and the parallelism between the first adjusting plane 231 and the third rotating shaft 221 is high. The level 50 having a high-precision measurement standard is placed on the first adjustment plane 231, and the offset angle of the bubble of the level 50 can be adjusted by rotating the support arm support 23. When the bubble of the level 50 is centered, the support arm 23 is in the zero position, i.e., the third rotation shaft 221 of the multi-dimensional adjustment assembly 20 is set to zero.

After completing the zeroing of the positions of the second arm 22, the support arm 23 and the arc-shaped arm 24, the zeroing position of the first arm 21 relative to the carriage assembly 10 needs to be further adjusted. In one embodiment, the bracket assembly 10 is provided with a first marking line 11 and the first arm 21 is provided with a second marking line 214. When the first marking line 11 and the second marking line 214 are in the same straight line, the first rotation axis 211 is set to zero.

The first arm 21 can rotate relative to the carriage assembly 10 to rotate the multi-dimensional adjustment assembly 20 and the first and

second inspection assemblies

30 and 40 as a whole relative to the carriage assembly 10. The zeroing of the first arm 21, i.e., the zeroing of the first rotating shaft 211, is completed when the first marking line 11 and the second marking line 214 are in the same straight line.

As shown in fig. 6 and 7, the first detection assembly 30 and the second detection assembly 40 are oppositely disposed to cooperatively detect a parameter of the target object therebetween. In one embodiment, the first detecting assembly 30 includes a telescoping assembly 32 mounted to the arc-shaped arm 24 and a collision-prevention rotating assembly 31 rotatably mounted to the telescoping assembly 32, wherein the collision-prevention rotating assembly 31 rotates relative to the telescoping assembly 32 about a fifth axis of rotation, wherein the fifth axis of rotation is perpendicular to the fourth axis of rotation. The anti-collision rotating assembly 31 is configured with a second adjusting plane 311, and the second adjusting plane 311 is parallel to the fifth rotation axis, and the anti-collision rotating assembly 31 rotates relative to the telescopic assembly 32 to adjust the fifth rotation axis of the anti-collision rotating assembly 31 to be set to zero. Wherein the second adjustment plane 311 is used for placing the level 50 and is zeroed when the bubble of the level 50 is centered.

The anti-collision rotation assembly 31 is rotatably connected to the telescoping assembly 32, and the rotation axis of the anti-collision rotation assembly and the telescoping assembly is a fifth rotation axis. The second plane of adjustment 311 is parallel to the fifth axis of rotation, and the position of the second plane of adjustment 311 relative to the horizontal plane can be measured by the level 50 to determine the zeroing position of the fifth axis of rotation. The zero setting adjustment process of the fifth rotation axis is as follows: the arc-shaped arm 24 slides relative to the support arm frame 23 to extend the first detection assembly 30 in a horizontal plane until the second adjustment plane 311 is substantially at a horizontal angle. The level 50 is placed in the second adjustment plane 311 and the curved arm 24 is fine tuned to center the bubble in the first direction. The anti-collision rotation assembly 31 is then driven to rotate about the fifth rotation axis to center the bubble in the second direction, wherein the first direction is perpendicular to the second direction. Then, the fifth axis of rotation is zeroed when the bubble of the level 50 is centered, and the zero adjustment of the anti-collision swivel assembly 31 is facilitated.

The telescopic assembly 32 can drive the anti-collision rotating assembly 31 to linearly and telescopically move so as to adjust the detection position of the anti-collision rotating assembly 31. In one embodiment, retraction assembly 32 includes at least two telescoping tubes, and retraction assembly 32 is retracted in the direction of the fifth axis of rotation and at a standard retraction value to zero out retraction assembly 32.

The telescopic assembly 32 may drive the anti-collision rotating assembly 31 to linearly and telescopically move along the axis direction of the fifth rotation axis to adjust the position of the anti-collision rotating assembly 31, so that the first detecting assembly 30 and the second detecting assembly 40 can jointly detect corresponding parameters, and obtain stable detection parameters. Alternatively, the standard value H of the expansion and contraction component 32 can be set according to the design requirement, for example, the standard value H of the expansion and contraction component 32 can be set to 313mm in the blood vessel machine. The measurement mode of the expansion standard value is as follows: the telescopic assembly 32 is in an extended state, and the steel plate ruler measures the spacing distance between the end surface of the outermost sleeve in the telescopic assembly 32 and the upper plane of the anti-collision rotating assembly 31. By adjusting the extension of the telescopic assembly 32 to be equal to the standard telescopic value, the telescopic assembly 32 is set to zero.

The second detecting component 40 is disposed opposite to the first detecting component 30, and the two components cooperate to detect the detection parameters of the target object, and the second detecting component 40 needs to be set to zero and adjusted to ensure the detection accuracy of the second detecting component 40. In an embodiment, the second detecting assembly 40 includes a bulb 42 and a collimator 41 rotatably connected to the bulb 42, the bulb 42 and the telescopic assembly 32 are respectively installed at two ends of the arc-shaped arm 24, and the collimator 41 is disposed opposite to the anti-collision rotating assembly 31. The collimator 41 is rotated and centered about a sixth axis of rotation with respect to the bulb 42 in accordance with the exposure image, so that the sixth axis of rotation is zeroed out.

The bulb 42 is detachably mounted to the arc-shaped arm 24, and the collimator 41 is rotatably connected to the bulb 42 to rotate about a sixth axis of rotation, which is perpendicular to the fourth axis of rotation. The collimator 41 is rotated about a sixth rotation axis with respect to the bulb 42, and an exposure image is output. The exposure image is displayed by the display device, wherein the deflection position and angle of the exposure image relative to the display frame of the display device under the collimation action of the collimator 41 can be visually represented or measured in the exposure image. And then, the collimator 41 is driven to rotate according to the relative position of the exposure image of the collimator 41 and the display frame of the display device, so that the exposure image is centered and symmetrical relative to the display frame, and then the sixth rotation axis is set to zero.

The collimator 41 does not need to be removed in the zero setting adjustment process of the second detection assembly 40, the zero setting operation is simple, the user can complete the zero setting debugging process through simple training, the operation convenience is good, and the adjustment efficiency is high. The standard light and the high-precision level gauge 50 are adopted for adjustment, the precision errors of the second rotating shaft 212, the third rotating shaft 221 and the fourth rotating axis are less than 0.1 degree, and the adjustment precision is high. In addition, the time required by each adjusting step is short, the time required by the maintenance of the equipment can be greatly shortened, and the economic benefit is good.

As shown in fig. 1, the present application further discloses a calibration method corresponding to the scanning device, so that the scanning device performs zero adjustment, and the scanning precision of the scanning device is high.

The correction method comprises the following steps:

step S101, the support arm 23 is set to zero. The support arm support 23 is pivotally connected to the second arm 22 via a third rotating shaft 221, so that the support arm support 23 can rotate around the third rotating shaft 221 relative to the second arm 22, and the arc-shaped arm 24 connected to the support arm support 23 rotates relative to the second arm 22. In the process of zero setting of the scanning device, the third rotating shaft 221 of the support arm frame 23 is adjusted to zero. The arc-shaped support arm 24 can swing and rotate relative to the first support arm 21, and the first detection assembly 30 and the second detection assembly 40 which are arranged at the two ends of the arc-shaped support arm 24 move to different detection angles along with the arc-shaped support arm 24.

Step S102, mounting a laser transmitter to a calibration stand, wherein a laser beam output by the laser transmitter coincides with the first rotating shaft 211. The laser transmitter is used for outputting a laser beam with a straight propagation and stable linear diameter, and the laser beam irradiates towards the arc-shaped support arm 24 and is parallel to the axis of the first rotating shaft 211. Accordingly, the laser beam serves as a light recognizable to the naked eye of the operator to visualize the axis of the first rotating shaft 211. Optionally, the calibration frame is the first support arm 21; alternatively, the alignment jig is fixedly mounted to the first arm 21. The laser transmitter serves as a calibration device 60 that can output a laser beam as a standard light.

In step S103, the first arm 21 is rotated relative to the support assembly 10, so that the correction portion 241 is shifted toward the laser beam.

Step S104, sliding the arc-shaped support arm 24 along the support arm support 23, so that the correction portion 241 rotates around the fourth rotation axis and shifts toward the laser beam direction.

Step S105, repeating steps S103 and S104 until the laser beam output by the laser emitter coincides with the center line of the correction portion 241, and then the second rotating shaft 212 and the fourth rotation axis are set to zero.

The correcting portion 241 is disposed on the radial outer peripheral wall of the arc arm 24 as a reference position for zero setting correction, so that the correcting portion 241 can move relative to the calibration frame during the rotation of the arc arm 24, wherein the calibration frame is disposed on the first arm 21 or is a part of the first arm 21. The correcting part 241 gradually approaches the laser beam output by the laser emitter on the correcting part along with the alternating motion or synchronous motion of the first support arm 21 and the arc-shaped support arm 24 along with the rotation of the first support arm 21 and the movement of the arc-shaped support arm 24, until the laser beam is overlapped with the center line of the correcting part 241, the second rotating shaft 212 and the fourth rotating axis are simultaneously set to be zero, and the adjusting efficiency is high. The first arm 21 and the arc-shaped arm 24 are alternately adjusted in rotation so that the second rotating shaft 212 and the fourth axis of rotation are simultaneously set to zero, which is low in the requirement for operating skill, and the alignment of the laser beam with the center line of the correcting portion 241 to determine the accuracy of the adjustment position is convenient for observation.

The arc-shaped support arm 24 is in an arc structure, and the central line of the arc-shaped support arm is basically coincident with the central line of the sliding groove of the support arm support 23. Namely, the sliding track of the arc-shaped support arm 24 along the support arm support 23 is the arc line where the sliding chute is located. The correcting part 241 is synchronously machined in the process of machining the external dimension of the arc-shaped support arm 24, and the machining position of the correcting part 241 on the arc-shaped support arm 24 is accurate. The correcting portion 241 is integrally formed with the arc arm 24, and the processing position accuracy of the correcting portion 241 is high. In one embodiment, the correcting portion 241 includes a hole-shaped groove disposed on the arc-shaped support arm 24. In another embodiment, the correcting portion 241 includes a correcting member attached to the curved arm 24, the correcting member having a correcting centerline.

As shown in fig. 2 and 5, in step S102, the mounting the laser transmitter to the calibration stand includes the following steps:

and mounting the laser emitter on a flange mounting opening 213, wherein the flange mounting opening 213 is configured as a groove structure for mounting the calibration rack on the first support arm 21. The flange mounting port 213 is provided with a taper hole or a stepped hole structure, and is used for positioning the mounting accuracy of the laser emitter so that the center line of the laser emitter coincides with the calibration center line of the calibration frame.

And starting the laser transmitter, and outputting a laser beam to the arc-shaped support arm 24 direction by the laser transmitter, wherein the calibration center line is superposed with the laser beam. The shape and the line diameter of the laser beam are small in variation and convenient for a user to observe, so that the laser beam is adjusted to coincide with the center line of the correcting part 241.

The supporting arm support 23 is configured with a first adjusting plane 231 parallel to the third rotating shaft 221, wherein the first adjusting plane 231 is processed when the supporting arm support 23 is processed, and the parallelism between the first adjusting plane 231 and the third rotating shaft 221 is high. The level 50 having a high-precision measurement standard is placed on the first adjustment plane 231, and the offset angle of the bubble of the level 50 can be adjusted by rotating the support arm support 23.

Correspondingly, in step S101, the zeroing the support arm support 23 includes the following steps:

the level 50 is placed on a first adjustment plane 231 provided with said support arm 23.

The support arm 23 is rotated relative to the second arm 22 to adjust the bubble centering of the level 50.

The supporting arm support 23 is pivotally connected to the second arm support 22 via a third rotating shaft 221, the supporting arm support 23 rotates around the third rotating shaft 221 relative to the second arm support 22, and the first adjusting plane 231 is disposed on an upward surface of the supporting arm support 23. The support arm 23 is reciprocally rotated about the third rotation shaft 221 to adjust the position of the bubble of the level 50 placed on the first adjustment plane 231. When the bubble of the level 50 is centered, the support arm 23 is in the zero position, i.e., the third rotation shaft 221 of the multi-dimensional adjustment assembly 20 is set to zero.

In one embodiment, the correction method further comprises: the first arm 21 is rotated relative to the bracket assembly 10, so that the first marking line 11 disposed on the bracket assembly 10 and the second marking line 214 disposed on the first arm 21 are in the same straight line, and the first rotating shaft 211 is set to zero.

The carriage assembly 10 is provided with a first marking line 11 and the first arm 21 is provided with a second marking line 214. The first arm 21 can rotate relative to the carriage assembly 10 to rotate the multi-dimensional adjustment assembly 20 and the first and

second inspection assemblies

In addition to adjusting the four major rotational center axes of the multi-dimensional adjustment assembly 20, a further zeroing adjustment of the first and

second sensing assemblies

30 and 40 is required. The first sensing assembly 30 and the second sensing assembly 40 are oppositely disposed to cooperatively sense a parameter of the target object therebetween.

As shown in fig. 6 and 7, in one embodiment, the first detecting assembly 30 includes a telescopic assembly 32 mounted to the arc-shaped arm 24 and a collision-prevention rotating assembly 31 rotatably mounted to the telescopic assembly 32, and the collision-prevention rotating assembly 31 rotates around a fifth rotation axis relative to the telescopic assembly 32.

Rotating the arc-shaped support arm 24 around the fourth rotation axis so that a second adjustment plane 311 of the anti-collision rotation assembly 31 is parallel to the horizontal plane, wherein the second adjustment plane 311 is parallel to the fifth rotation axis;

the level 50 is placed in the second adjustment plane 311.

The fifth axis of rotation of the anti-collision swivel assembly 31 is zeroed out by rotating the anti-collision swivel assembly 31 relative to the telescoping assembly 32 to adjust the bubble centering of the level 50.

The anti-collision rotation assembly 31 is rotatably connected to the telescoping assembly 32, and the rotation axis of the anti-collision rotation assembly and the telescoping assembly is a fifth rotation axis. The second plane of adjustment 311 is parallel to the fifth axis of rotation, and the position of the second plane of adjustment 311 relative to the horizontal plane can be measured by the level 50 to determine the zeroing position of the fifth axis of rotation. The zero setting adjustment process of the fifth rotation axis is as follows: the arc-shaped arm 24 slides relative to the support arm frame 23 to extend the first detection assembly 30 in a horizontal plane until the second adjustment plane 311 is substantially at a horizontal angle. The level 50 is placed in the second adjustment plane 311 and the curved arm 24 is fine tuned to center the bubble in the first direction. The anti-collision rotation assembly 31 is driven to rotate around the fifth rotation axis so as to center the air bubble in the second direction, wherein the first direction is perpendicular to the second direction. Then, the fifth axis of rotation is zeroed when the bubble of the level 50 is centered, and the zero adjustment of the anti-collision swivel assembly 31 is facilitated.

The telescopic assembly 32 can drive the anti-collision rotating assembly 31 to linearly and telescopically move so as to adjust the detection position of the anti-collision rotating assembly 31. In one embodiment, the retraction assembly 32 includes at least two layers of telescoping connections.

Extending the retraction assembly 32 in the direction of the fifth axis of rotation.

When the measured extension value of retraction assembly 32 is equal to the standard retraction value, retraction assembly 32 is zeroed.

The second detecting component 40 is disposed opposite to the first detecting component 30, and the two components cooperate to detect the detection parameters of the target object, and the second detecting component 40 needs to be set to zero and adjusted to ensure the detection accuracy of the second detecting component 40. In an embodiment, the second detecting assembly 40 includes a bulb 42 and a collimator 41 rotatably connected to the bulb 42, the bulb 42 and the telescopic assembly 32 are respectively installed at two ends of the arc-shaped arm 24, and the collimator 41 is disposed opposite to the anti-collision rotating assembly 31.

The collimator 41 is rotated about a sixth rotation axis with respect to the bulb 42, and an exposure image is output.

Displaying the exposure image through a display device.

And driving the collimator 41 to rotate according to the relative position of the exposure image of the collimator 41 and the display frame of the display device, so that the exposure image is centered and symmetrical relative to the display frame, and then the sixth rotation axis is set to zero.

The bulb 42 is detachably mounted to the curved arm 24, and the collimator 41 is rotatably connected to the bulb 42 for rotation about a sixth axis of rotation. The collimator 41 is rotated about a sixth rotation axis with respect to the bulb 42, and an exposure image is output. The exposure image is displayed by the display device, wherein the deflection position and angle of the exposure image relative to the display frame of the display device under the collimation action of the collimator 41 can be visually represented or measured in the exposure image. And then, the collimator 41 is driven to rotate according to the relative position of the exposure image of the collimator 41 and the display frame of the display device, so that the exposure image is centered and symmetrical relative to the display frame, and then the sixth rotation axis is set to zero.

The scanning device disclosed in the above embodiment is applied to a medical detection device to improve the adjustment efficiency and the zero setting precision of the medical detection device. In an embodiment, the medical detection device comprises a carrying body, a control body and a scanning apparatus as disclosed in the above embodiments, the scanning apparatus being communicatively connected to the control body. The control body outputs a control command to the scanning device through the input device, so that the multi-dimensional adjusting assembly 20, the first detecting assembly 30 and the second detecting assembly 40 can adjust the geometric position correspondingly to detect the detected object placed on the bearing body. Optionally, the load bearing body comprises a movable bed or a movable chair.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A scanning device is characterized by comprising a bracket component, a multi-dimensional adjusting component, a first detection component and a second detection component, wherein the multi-dimensional adjusting component is rotatably connected to the bracket component, and the first detection component and the second detection component are arranged on the multi-dimensional adjusting component; the axis of the first rotating shaft is parallel to the axis of the second rotating shaft, and the axis of the second rotating shaft is perpendicular to the axis of the third rotating shaft;

2. The scanning device according to claim 1, wherein the arc-shaped support arm is of an arc-shaped structure, and the correction portion is integrally formed with the arc-shaped support arm, wherein the correction portion comprises a hole-shaped groove formed in the arc-shaped support arm; or the correcting part comprises a correcting piece fixedly connected with the arc-shaped support arm, and the correcting piece is provided with a correcting central line.

3. The scanning device of claim 1, wherein the calibration rig includes a flange mounting opening disposed in the first arm, the flange mounting opening configured to mount a calibration device that outputs a calibration light that is coincident with the calibration centerline.

4. The scanning device according to claim 1, wherein the support arm is configured with a first adjustment plane parallel to the third rotation axis; the first adjusting plane is used for placing a level and the support arm support is set to be zero when bubbles of the level are centered.

5. The scanning device of claim 1, wherein the carriage assembly is provided with a first marking line and the first arm is provided with a second marking line; when the first marking line and the second marking line are in the same straight line, the first rotating shaft is set to be zero.

6. The scanning device of claim 1, wherein the first detection assembly comprises a telescoping assembly mounted to the arcuate arm and an anti-collision rotation assembly rotatably mounted to the telescoping assembly, the anti-collision rotation assembly rotating relative to the telescoping assembly about a fifth axis of rotation, the anti-collision rotation assembly configured with a second plane of adjustment and the second plane of adjustment being parallel to the fifth axis of rotation, the anti-collision rotation assembly rotating relative to the telescoping assembly to adjust the fifth axis of rotation of the anti-collision rotation assembly to zero; wherein the second adjustment plane is used for placing the level and is set to zero when the bubble of the level is centered.

7. The scanning device according to claim 6, wherein said telescoping assembly comprises at least two telescoping tubes, said telescoping assembly telescoping in the direction of said fifth axis of rotation and at a standard telescoping value to zero said telescoping assembly.

8. The scanning device according to claim 6, wherein the second detecting element comprises a bulb and a collimator rotatably connected to the bulb, the bulb and the telescopic element are respectively mounted at two ends of the arc-shaped arm, and the collimator is disposed opposite to the anti-collision rotating element, and the collimator rotates and centers around a sixth rotation axis with respect to the bulb according to the exposure image, so as to zero the sixth rotation axis.

9. A correction method of a scanning device comprises a bracket component, a multi-dimensional adjusting component which is rotatably connected to the bracket component, a first detection component and a second detection component which are arranged on the multi-dimensional adjusting component, wherein the multi-dimensional adjusting component comprises a first support arm, a second support arm, a support arm frame and an arc-shaped support arm which is arranged on the support arm frame in a sliding mode, the first support arm and the bracket component are connected in a pivoted mode through a first rotating shaft, the first support arm and the second support arm are connected in a pivoted mode through a second rotating shaft, and the support arm frame and the second support arm are connected in a pivoted mode through a third rotating shaft; the axis of the first rotating shaft is parallel to the axis of the second rotating shaft, and the axis of the second rotating shaft is perpendicular to the axis of the third rotating shaft; the method is characterized in that:

s101, zeroing the support arm support;

10. The correction method according to claim 9, wherein the arc-shaped support arm is an arc-shaped structure, and the correction portion is integrally formed with the arc-shaped support arm, wherein the correction portion comprises a hole-shaped groove formed in the arc-shaped support arm; or the correcting part comprises a correcting piece fixedly connected with the arc-shaped support arm, and the correcting piece is provided with a correcting central line.

11. The calibration method of claim 9, wherein said mounting a laser transmitter to a calibration rig comprises:

12. The calibration method of claim 9, wherein the zeroing the support arm comprises:

13. The correction method according to claim 9, characterized in that the correction method further comprises:

14. The calibration method of claim 9, wherein the first detection assembly comprises a telescoping assembly mounted to the arcuate arm and a collision avoidance rotating assembly rotatably mounted to the telescoping assembly, the collision avoidance rotating assembly rotating relative to the telescoping assembly about a fifth axis of rotation;

placing a level on the second adjustment plane;

15. The method of calibrating according to claim 14, wherein said telescoping assembly comprises at least two layers of telescoping connections;

16. The calibration method according to claim 14, wherein the second detection assembly comprises a bulb and a collimator rotatably connected to the bulb, the bulb and the telescopic assembly are respectively mounted at two ends of the arc-shaped support arm, and the collimator is disposed opposite to the anti-collision rotation assembly;

displaying the exposure image through a display device;

17. A medical examination device comprising a carrying body, a control body and a scanning apparatus according to any one of claims 1 to 8, the scanning apparatus being communicatively connected to the control body.