Low-dose DSA imaging equipment

Abstract

The invention provides low-dose DSA imaging equipment, and belongs to the technical field of imaging equipment, the low-dose DSA imaging equipment comprises a driving arm, a C-shaped arm, an X-ray bulb tube and a detector, the driving arm comprises a suspension piece, a cross arm and a telescopic arm, the upper side of the suspension piece is fixedly connected to a ceiling, the lower side of the suspension piece is rotationally connected with the cross arm, and a rotary driving piece for driving the cross arm to rotate along the horizontal plane is arranged in the suspension piece; the telescopic arm comprises a main arm and an auxiliary arm slidably connected into the main arm, a composite driving part is arranged in the main arm, the upper end of the main arm is rotationally connected with the cross arm, and the lower end of the auxiliary arm is located outside the main arm and rotationally connected with the C-shaped arm. According to the invention, the C-shaped arm is suspended on the ceiling by adopting the suspension piece, the cross arm and the telescopic arm, and the position of the C-shaped arm is flexibly adjusted through the cross arm and the telescopic arm. The folding driving part is further arranged, the C-shaped arm can be folded, the CT equipment can conveniently detect a patient, and the occupied area of an operating room is saved.

Description

Technical Field

[0001] This invention relates to the field of imaging equipment technology, and in particular to a low-dose DSA imaging device. Background Technology

[0002] DSA is an abbreviation for Digital Subtraction Angiography. It is an advanced medical imaging technique specifically designed for clearly visualizing the vascular system. A DSA system mainly includes an X-ray tube, a C-arm, detectors, an examination table, a computer image processing system, a high-pressure injector, and an image display. The X-ray tube generates stable, high-quality X-rays, while the detectors directly receive the X-rays and convert them into high-quality digital signals. The C-arm is a large robotic arm shaped like the letter "C," with the X-ray tube (emitting X-rays) and the image detector (receiving X-rays) fixed at both ends. The C-arm can flexibly rotate around the patient at multiple angles (such as forward / backward, left / right, and tilt), allowing for image projection and acquisition from different angles, achieving three-dimensional vascular reconstruction.

[0003] Furthermore, the current trend is to build integrated CT+DSA operating rooms. In a hybrid operating room, the DSA imaging equipment needs to be moved away from the examination bed to facilitate the entry of CT equipment to examine the patient. Therefore, the space requirements for the hybrid operating room are relatively large, and existing old hospitals face difficulties in renovation. Summary of the Invention

[0004] The purpose of this invention is to provide a low-dose DSA imaging device that has the advantages of small footprint, easy installation, and suitability for building a hybrid operating room.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a low-dose DSA imaging device, comprising a drive arm, a C-arm, an X-ray tube, and a detector. The drive arm includes a suspension component, a horizontal arm, and a telescopic arm. The upper side of the suspension component is fixedly connected to the ceiling, and the lower side is rotatably connected to the horizontal arm. A rotation drive component is provided inside the suspension component to drive the horizontal arm to rotate along the horizontal plane. A telescopic arm and a folding drive component are provided at the end of the horizontal arm away from the suspension component. The telescopic arm includes a main arm and a secondary arm slidably connected inside the main arm. A composite drive component is provided inside the main arm to drive the secondary arm to move up and down or rotate. The upper end of the main arm is rotatably connected to the horizontal arm, and the lower end of the secondary arm is located outside the main arm and rotatably connected to the C-arm. The folding drive component is used to drive the C-arm to rotate towards the suspension component.

[0006] A further configuration of the present invention is that the composite drive component includes a lead screw fixedly connected in the auxiliary arm, a nut threadedly connected to the lead screw, a first motor for driving the lead screw to rotate, a guide rod, and a guide block slidably connected to the guide rod. The upper end of the auxiliary arm is provided with an annular groove, the side wall of the nut is provided with a first limiting block, the side wall of the guide block is provided with a second limiting block, and the first limiting block and the second limiting block are slidably connected to the annular groove.

[0007] A further configuration of the present invention is that a rotating shaft is rotatably connected inside the main arm, a sliding key is fixedly connected to the side wall of the rotating shaft, a cylindrical groove for the rotating shaft to be embedded in is provided inside the auxiliary arm, a strip keyway for the sliding key to be slidably connected is provided on the side wall of the cylindrical groove in the vertical direction, and a second motor for driving the lead screw to rotate is provided inside the auxiliary arm.

[0008] A further provision of the present invention is that the guide block is provided with a first locking element for limiting the displacement of the annular block in the vertical direction.

[0009] A further provision of the present invention is that the guide block is provided with a first locking member, the first locking member including two symmetrically arranged arc-shaped rubber sheets, the guide block is provided with a bidirectional lead screw and a locking motor for driving the bidirectional lead screw to rotate, a locking nut is threadedly connected to the bidirectional lead screw, and the locking nut is fixedly connected to the arc-shaped rubber sheets.

[0010] A further provision of the present invention is that a slider is fixedly connected above one end of the horizontal arm near the telescopic arm, and a circular slide rail is provided on the ceiling, with the slider slidably connected to the slide rail.

[0011] A further provision of the present invention is that a bracket is fixedly connected to the lower end of the horizontal arm near the telescopic arm, and a connecting shaft is fixedly connected to the telescopic arm. The connecting shaft is rotatably connected to the bracket, and the axis of the connecting shaft is perpendicular to both the horizontal arm and the telescopic arm.

[0012] A further configuration of the present invention is that one end of the C-arm is fixedly connected to the X-ray tube, and the other end is fixedly connected to the detector.

[0013] A further configuration of the present invention is that the lower end of the auxiliary arm is rotatably connected to the C-shaped arm.

[0014] The beneficial effects of this invention are: 1. This invention uses a suspension component, a horizontal arm, and a telescopic arm to suspend the C-shaped arm from the ceiling, facilitating movement for medical staff. The position of the C-shaped arm can be flexibly adjusted via the horizontal and telescopic arms. The invention also includes a folding drive component, which drives the telescopic arm to rotate the C-shaped arm towards the suspension component. When the telescopic arm rotates to be perpendicular to the horizontal arm, the C-shaped arm can be folded up, facilitating CT examination of the patient and saving operating room space.

[0015] 2. The telescopic arm includes a main arm and a secondary arm. A composite drive unit within the main arm can drive the secondary arm to move up and down, as well as to rotate it. The up-and-down movement of the secondary arm expands the adjustment range of the C-arm and facilitates folding the C-arm; the rotation of the secondary arm improves the flexibility of adjusting the C-arm's position. Integrating linear and rotary drives into a composite drive unit reduces the size of the drive mechanism, making the DSA imaging equipment more compact.

[0016] 3. A circular slide rail is installed on the ceiling, and a slider is installed on the horizontal arm. The slider supports the end of the horizontal arm away from the suspension, which helps to maintain the stability of the C-shaped arm when it moves, and also helps to maintain the stability of the C-shaped arm when it is folded.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the low-dose DSA imaging device in Embodiment 1 of the present invention.

[0020] Figure 2 This is a cross-sectional schematic diagram of the main arm in Embodiment 1 of the present invention.

[0021] Figure 3 For the present invention Figure 2 Enlarged diagram of point A.

[0022] Figure 4 This is a schematic diagram of the composite drive component structure in Embodiment 1 of the present invention.

[0023] Figure 5 This is a schematic diagram of the first locking component structure in Embodiment 1 of the present invention.

[0024] Figure 6 This is a schematic diagram of the slider, circular slide rail, and second locking component in Embodiment 2 of the present invention.

[0025] Explanation of reference numerals in the attached figures: 1. Drive arm; 2. C-arm; 3. X-ray tube; 4. Detector; 11. Suspension component; 111. Rotation drive component; 12. Horizontal arm; 13. Telescopic arm; 131. Folding drive component; 132. Connecting shaft; 133. Main arm; 133a. Cavity; 133b. Support frame; 134. Secondary arm; 134a. Annular groove; 135. Composite drive component; 135a. Lead screw; 135b. Nut; 135c. First limit block; 135 d. Guide rod; 135e. Guide block; 135f. Second limit block; 135g. First motor; 135h. Rotating shaft; 135i. Second motor; 135j. Sliding key; 135k. Cylindrical groove; 135l. Keyway; 136. First locking element; 136a. Arc-shaped rubber sheet; 136c. Bidirectional lead screw; 136d. Locking motor; 136e. Locking nut; 14. Slider; 15. Circular slide rail; 16. Second locking element. Detailed Implementation

[0026] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0030] Example 1 like Figure 1 As shown, the present invention discloses a low-dose DSA imaging device, including a drive arm 1, a C-arm 2, an X-ray tube 3, and a detector 4. The X-ray tube 3 and the detector 4 are respectively connected to the two ends of the C-arm 2. The X-ray tube 3 is used to emit X-rays, the detector 4 is used to receive X-rays, and the drive arm 1 is used to drive the C-arm 2 to move, perform three-dimensional X-ray scanning of the patient, and perform low-dose DSA imaging.

[0031] like Figure 2 As shown, the drive arm 1 includes a suspension member 11, a horizontal arm 12, and a telescopic arm 13. The upper side of the suspension member 11 is fixedly connected to the ceiling, and the lower side is rotatably connected to the horizontal arm 12. A rotary drive member 111 is installed inside the suspension member 11. The rotary drive member 111 is a servo motor. The rotary drive member 111 drives the horizontal arm 12 to rotate around the suspension member 11 in the horizontal direction.

[0032] like Figure 1 , Figure 2 As shown, a telescopic arm 13 is rotatably connected to the end of the horizontal arm 12 away from the suspension component 11. The horizontal arm 12 is installed along the X-axis, and the telescopic arm 13 is connected to the horizontal arm 12 along the Y-axis. The telescopic arm 13 is rotatably connected to the end of the horizontal arm 12 along the Z-axis via a connecting shaft 132. A folding drive component 131 is installed on the connecting shaft 132. The folding drive component 131 is a servo motor. The folding drive component 131 drives the telescopic arm 13 to rotate along the vertical plane with the connecting shaft 132 as the center, thereby causing the telescopic arm 13 to move closer to or away from the horizontal arm 12. A C-shaped arm 2 is connected to the lower end of the telescopic arm 13. When the DSA imaging equipment is working, the C-shaped arm 2 is lowered to the examination table for X-ray scanning via the folding drive component 131. After scanning, the telescopic arm 13 can be driven to rotate towards the horizontal arm 12 until it is parallel to the horizontal arm 12, so that the C-shaped arm 2 is removed from the detection area, making it easier for the CT imaging equipment to move to the examination table for scanning and detection, thereby significantly reducing the area of ​​the integrated composite operating room.

[0033] like Figures 2-4As shown, the telescopic boom 13 includes a main boom 133 and a secondary boom 134 slidably connected within the main boom 133. The main boom 133 contains a composite drive component 135 that drives the secondary boom 134 to move up and down or rotate. A connecting shaft 132 is fixedly connected to the top of the main boom 133. A cavity 133a is provided within the main boom 133, and a support frame 133b is provided within the cavity 133a. The support frame 133b is equipped with the secondary boom 134, a lead screw 135a, a guide rod 135d, and a rotating shaft 135h. The secondary boom 134 is slidably connected to the support frame 133b, with its lower end located outside the cavity 133a of the main boom 133 and its side rotatably connected to the C-shaped boom 2. A lead screw 135a is rotatably connected to a support frame 133b. A first motor 135g, which drives the lead screw 135a to rotate, is fixed on the support frame 133b. A nut 135b is threaded onto the lead screw 135a. A guide block 135e is slidably connected to the guide rod 135d. A first limiting block 135c is provided on the side wall of the nut 135b, and a second limiting block 135f is provided on the side wall of the guide block 135e. An annular groove 134a is provided at the upper end of the secondary wall. The first limiting block 135c and the second limiting block 135f are slidably connected in the annular groove 134a of the secondary arm 134. When the first motor 135g drives the lead screw 135a to rotate, the nut 135b can move the secondary wall up and down along the guide rod 135d via the first limiting block 135c.

[0034] like Figure 4 As shown, a rotating shaft 135h is slidably connected to the support frame 133b, and a second motor 135i is fixedly connected to the support frame 133b. The second motor 135i drives the rotating shaft 135h to rotate. A strip-shaped sliding key 135j is fixedly connected to the side wall of the rotating shaft 135h. A cylindrical groove 135k is opened in the center of the secondary wall, and the rotating shaft 135h is slidably connected in the cylindrical groove 135k. The cylindrical groove 135k is provided for the sliding key 135j to be slidably connected in the strip-shaped keyway 135l. When the second motor 135i drives the rotating shaft 135h to rotate, it can drive the secondary wall to rotate. Since the secondary arm 134 is slidably connected to the nut 135b and the guide block 135e, the nut 135b and the guide block 135e will not affect the rotation of the secondary arm 134. With the above settings, the composite drive unit 135 can simultaneously drive the auxiliary arm 134 to move up and down or rotate, which can expand the scanning range of the C-shaped arm 2. At the same time, when folding the C-shaped arm 2, the auxiliary arm 134 is retracted, which can reduce the torque of the telescopic arm 13 and make it easier to fold the C-shaped arm 2.

[0035] like Figure 4 , Figure 5As shown, the guide block 135e is provided with a first locking element 136, which includes two symmetrically arranged arc-shaped rubber pieces 136a. A bidirectional lead screw 136c and a locking motor 136d that drives the bidirectional lead screw 136c to rotate are rotatably connected to the guide block 135e. Two locking nuts 136e are threadedly connected to the bidirectional lead screw 136c, and the two locking nuts 136e are respectively fixedly connected to the arc-shaped rubber pieces 136a. The locking motor 136d drives the bidirectional lead screw 136c to rotate, thereby causing the two arc-shaped rubber pieces 136a to move closer or further away, thus realizing the locking and unlocking of the guide block 135e and the auxiliary arm 134.

[0036] Example 2 The difference between Example 2 and Example 1 is that, as Figure 6 As shown, a slider 14 is fixedly connected to the end of the cross arm 12 away from the suspension member 11. A circular slide rail 15 is installed on the ceiling. The slider 14 is slidably connected to the slide rail. The restraining force of the slider 14 on the cross arm 12 can improve the stability of the C-shaped arm 2 when it moves and folds.

[0037] A second locking element 16 is fixedly connected to the slider 14 to limit the displacement of the slider 14. The second locking element 16 is an existing guide rail lock.

[0038] Example 3 The difference between Embodiment 2 and Embodiment 1 is that the horizontal arm 12 is provided with a snap-fit ​​component. After the C-shaped arm 2 is parallel to the horizontal arm 12, the snap-fit ​​component fixes the C-shaped arm 2, maintaining its stability. The snap-fit ​​component includes a motor-driven pin, and the C-shaped arm 2 is provided with a socket for the pin to be inserted.

[0039] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A low-dose DSA imaging device, characterized in that: The system includes a drive arm (1), a C-shaped arm (2), an X-ray tube (3), and a detector (4). The drive arm (1) includes a suspension component (11), a horizontal arm (12), and a telescopic arm (13). The upper side of the suspension component (11) is fixedly connected to the ceiling, and the lower side is rotatably connected to the horizontal arm (12). The suspension component (11) is provided with a rotary drive component (111) that drives the horizontal arm (12) to rotate along the horizontal plane. The horizontal arm (12) is provided with a telescopic arm (13) and a folding drive component (14) at the end away from the suspension component (11). 31), the telescopic arm (13) includes a main arm (133) and a secondary arm (134) slidably connected in the main arm (133). The main arm (133) is provided with a composite drive component (135) for driving the secondary arm (134) to move up and down or rotate. The upper end of the main arm (133) is rotatably connected to the cross arm (12), and the lower end of the secondary arm (134) is located outside the main arm (133) and rotatably connected to the C-shaped arm (2). The folding drive component (131) is used to drive the C-shaped arm (2) to rotate in the direction of the suspension component (11).

2. The low-dose DSA imaging device according to claim 1, characterized in that: The composite drive component (135) includes a lead screw (135a) fixedly connected in the auxiliary arm (134), a nut (135b) threadedly connected to the lead screw (135a), a first motor (135g) that drives the lead screw (135a) to rotate, a guide rod (135d), and a guide block (135e) slidably connected to the guide rod (135d). The upper end of the auxiliary arm (134) is provided with an annular groove (134a), the side wall of the nut (135b) is provided with a first limiting block (135c), and the side wall of the guide block (135e) is provided with a second limiting block (135f). The first limiting block (135c) and the second limiting block (135f) are slidably connected to the annular groove (134a).

3. The low-dose DSA imaging device according to claim 2, characterized in that: The main arm (133) is rotatably connected to a rotating shaft (135h), and a sliding key (135j) is fixedly connected to the side wall of the rotating shaft (135h). The auxiliary arm (134) is provided with a cylindrical groove for the rotating shaft (135h) to be embedded in. The side wall of the cylindrical groove is provided with a strip keyway (135l) in the vertical direction for the sliding key (135j) to be slidably connected. The auxiliary arm (134) is provided with a second motor (135i) that drives the lead screw (135a) to rotate.

4. The low-dose DSA imaging device according to claim 2, characterized in that: The guide block (135e) is provided with a first locking element (136) for limiting the displacement of the annular block in the vertical direction.

5. The low-dose DSA imaging device according to claim 4, characterized in that: The guide block (135e) is provided with a first locking member (136), which includes two symmetrically arranged arc-shaped rubber pieces (136a). The guide block (135e) is provided with a bidirectional lead screw (136c) and a locking motor (136d) for driving the bidirectional lead screw (136c) to rotate. A locking nut (136e) is threadedly connected to the bidirectional lead screw (136c), and the locking nut (136e) is fixedly connected to the arc-shaped rubber pieces (136a).

6. The low-dose DSA imaging device according to claim 1, characterized in that: A slider (14) is fixedly connected above one end of the horizontal arm (12) near the telescopic arm (13). A circular slide rail (15) is provided on the ceiling, and the slider (14) is slidably connected to the slide rail.

7. The low-dose DSA imaging device according to claim 1, characterized in that: A bracket is fixedly connected to the lower end of the horizontal arm (12) near the telescopic arm (13). A connecting shaft (132) is fixedly connected to the telescopic arm (13). The connecting shaft (132) is rotatably connected to the bracket. The axis of the connecting shaft (132) is perpendicular to both the horizontal arm (12) and the telescopic arm (13).

8. The low-dose DSA imaging device according to claim 1, characterized in that: One end of the C-shaped arm (2) is fixedly connected to the X-ray tube (3), and the other end is fixedly connected to the detector (4).

9. The low-dose DSA imaging device according to claim 6, characterized in that: The slider (14) is provided with a second locking element (16) for limiting the displacement of the slider (14).

10. The low-dose DSA imaging device according to claim 1, characterized in that: The lower end of the auxiliary arm (134) is rotatably connected to the C-shaped arm (2).

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