C-arm machine registration device
The integrated C-arm registration device fixes the registration plate and the tracer together, solving the problem of large installation errors in the existing technology, achieving high-precision repeated positioning and simplifying installation, thus improving surgical efficiency and safety.
Patent Information
- Application Number
- CN202510719977.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2025-09-12
AI Technical Summary
In existing C-arm registration devices, the registration plate and tracer are installed separately, which is prone to errors, has low repeatability and a complicated installation process.
An integrated design is adopted to fix the registration plate and tracer together. Through the cooperation of the mounting base, connecting components and sterile cover, an integral unit is formed. It is directly installed on the C-arm machine body, and the connecting components and slot structure are used to improve stability and accuracy.
It reduces errors introduced by multiple disassembly and assembly, improves repeated positioning accuracy, simplifies the installation process, improves surgical preparation efficiency and surgical success rate, and ensures the stability and safety of navigation positioning.
Smart Images

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Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of medical equipment, and in particular relates to a C-arm machine registration device. Background Art
[0002] In modern orthopedic surgery, surgical robot systems are widely used to improve surgical accuracy and safety. Through precise navigation and positioning, surgical robots help doctors perform complex surgical operations, reduce surgical risks, and improve surgical outcomes. C-arms, as an important component of surgical robot systems, provide real-time X-ray images, helping doctors observe the anatomical structure of the surgical site in real time during surgery, thereby achieving precise surgical operations. In order to unify the position of the C-arm with the patient's spatial coordinates, a registration device is usually required. The registration device aligns the image coordinates of the C-arm with the navigation coordinates of the surgical robot, ensuring that the surgical robot can accurately navigate and position itself based on the image data provided by the C-arm.
[0003] To this end, we provide a C-arm machine registration device to solve the above problems. Summary of the Invention
[0004] The object of the present invention is to provide a C-arm registration device. By cooperating with a mounting base, a registration plate and a tracer, the present invention solves the problem in the prior art that the registration plate and the tracer on the C-arm registration device are installed separately, which easily causes errors during the disassembly and installation process and reduces the repeatability of the positioning accuracy.
[0005] To solve the above technical problems, the present invention is implemented through the following technical solutions.
[0006] The present invention is a C-arm machine registration device, comprising a C-arm machine body, a mounting base is provided at the bottom of the C-arm machine body, a registration plate is fixedly connected to one side of the bottom of the mounting base by bolts, a mounting frame is provided on one side of the mounting base, and a tracer is provided on one side of the mounting frame.
[0007] The present invention is further configured such that a connecting assembly is provided at the top of the mounting frame, and the top of the connecting assembly is fixedly connected to the bottom of the C-arm machine body by bolts. The connecting assembly serves as a connecting structure between the bottom side of the mounting base and the mounting frame, thereby improving the stability of the tracer on one side of the mounting frame.
[0008] The present invention is further configured as follows: the connecting assembly includes a connecting pin, the top of the connecting pin is fixedly connected to the bottom of the C-arm machine body by a bolt, the bottom of the connecting pin is fixedly connected to a connecting cylinder, the surface of the connecting cylinder is sleeved with a spring, a connecting seat is provided on the outside of the connecting cylinder, the bottom of the connecting seat is fixedly connected to the top of the mounting frame, and the structure composed of the connecting pin and the connecting cylinder has an elastic telescopic function in the inner cavity of the connecting seat, so that the tracer on one side of the mounting frame can cope with interference from external forces.
[0009] The present invention is further configured such that a mounting hole is provided at the bottom of the tracer surface, and a mounting bolt is provided in the inner cavity of the mounting hole. One end of the mounting bolt is threadedly connected to the bolt hole on the surface of the mounting frame. The mounting bolt in the inner cavity of the mounting hole on the surface of the tracer is screwed until one end thereof is screwed into the bolt hole on the surface of the mounting frame, thereby installing the tracer on one side of the mounting frame and facilitating disassembly later.
[0010] The present invention is further configured such that positioning holes are provided on both sides of the surface of the mounting seat, and the number of the positioning holes is six. The fixing strap is passed through the positioning holes, wrapped around the C-arm machine body, and then tied tightly to fix the mounting seat to the bottom of the C-arm machine body.
[0011] The present invention is further configured such that a sterile cover is provided on the top of the mounting seat, and the top of the sterile cover is in contact with the bottom of the C-arm machine body. The sterile cover between the mounting seat and the C-arm machine body is an embodiment of dynamic sterile barrier technology. Through the combination of material properties, structural design and motion adaptability, the functionality of the equipment is guaranteed while isolating the source of contamination.
[0012] The present invention is further configured such that a card slot is provided on one side of the bottom of the C-arm machine body, the inner cavity of the card slot is movably connected with a card block, the bottom of the card block is fixedly connected to the top of the mounting seat, and the card block is inserted into the inner cavity of the card slot as the mounting seat moves. The limiting structure composed of the card block and the card slot can greatly improve the installation stability of the mounting seat installed on the bottom of the C-arm machine body.
[0013] The present invention is further configured such that a mounting platform is provided on one side of the mounting seat, a groove and a threaded hole are provided on the surface of the mounting platform, and a protrusion and a through hole are provided on one side of the mounting frame that are compatible with the groove and the threaded hole on the surface of the mounting platform, so as to facilitate the mounting frame to be firmly installed on the surface of the mounting platform.
[0014] The present invention is further configured such that a convex bead is provided on the surface of the connecting tube, and a latch hole is provided on the surface of the connecting seat. The connecting tube is rotated so that the convex bead on its surface is latched into the latch hole on the surface of the connecting seat for fixation. After pressing the convex bead to retract it, the connecting tube can be pulled out.
[0015] The present invention is further configured such that a rectangular opening with an arc-edge is provided on the surface of the mounting seat, and a circular hole is provided on the surface of the registration plate. The provision of the rectangular opening with an arc-edge and the circular opening ensures that the mounting seat and the registration plate do not affect the radiation output of the C-arm machine body, thereby allowing for more accurate imaging of the patient.
[0016] The present invention has the following beneficial effects.
[0017] 1. The present invention fixedly connects the registration plate and the tracer together to form an integral unit, which is directly mounted on the C-arm body. This integrated design reduces errors introduced by multiple disassembly and assembly, improves repeatable positioning accuracy, simplifies the installation process, and improves surgical preparation efficiency.
[0018] 2. The integrated registration device of the present invention significantly improves surgical efficiency. The reduction in surgical preparation time and the reduction in operational difficulty enable medical staff to complete pre-operative preparations more quickly and reduce patients' waiting time. At the same time, high-precision navigation positioning and stable performance ensure the smooth progress of the surgical process, thereby improving the success rate and safety of the surgery. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.
[0020] Figure 1 A three-dimensional diagram of a C-arm registration device.
[0021] Figure 2 This is a structural schematic diagram of the C-arm body and mounting base in a C-arm registration device.
[0022] Figure 3 A side view schematic diagram of a C-arm machine registration device.
[0023] Figure 4 This is a rear view schematic diagram of a C-arm machine registration device.
[0024] Figure 5 It is a side sectional schematic diagram of a C-arm machine registration device.
[0025] Figure 6 This is a schematic diagram of the connection structure between the mounting base and the tracer in a C-arm registration device.
[0026] Figure 7 This is a rear view schematic diagram of the connection structure between the mounting base and the tracer in a C-arm registration device.
[0027] Figure 8 An exploded diagram of the connection structure of the mounting base, registration plate, and tracer in a C-arm registration device.
[0028] In the accompanying drawings: 1. C-arm body; 2. mounting base; 3. alignment plate; 4. mounting frame; 5. tracer; 6. connecting assembly; 601. connecting pin; 602. connecting cylinder; 603. spring; 604. connecting base. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0030] Example 1
[0031] See also Figure 1-8 The present invention is a C-arm registration device, comprising a C-arm body 1, a mounting base 2 is provided at the bottom of the C-arm body 1, a registration plate 3 is fixedly connected to one side of the bottom of the mounting base 2 by bolts, a mounting frame 4 is provided on one side of the mounting base 2, and a tracer 5 is provided on one side of the mounting frame 4.
[0032] Specifically: first, install and fix the alignment plate 3 and the tracer 5 on the bottom and one side of the mounting base 2 respectively, then move the entire structure to the bottom of the mounting base 2 and stick it to the bottom of the C-arm body 1, and fix the mounting base 2 to the bottom of the C-arm body 1 with a strap.
[0033] Example 2
[0034] See also Figure 1-8 On the basis of the first embodiment, a connecting assembly 6 is provided on the top of the mounting frame 4. The top of the connecting assembly 6 is fixedly connected to the bottom of the C-arm machine body 1 by a bolt. The connecting assembly 6 includes a connecting pin 601. The top of the connecting pin 601 is fixedly connected to the bottom of the C-arm machine body 1 by a bolt. The bottom of the connecting pin 601 is fixedly connected to a connecting cylinder 602. The surface of the connecting cylinder 602 is provided with a spring 603. The outer side of the connecting cylinder 602 is provided with a connecting seat 604. The bottom of the connecting seat 604 is fixedly connected to the top of the mounting frame 4. A mounting hole is opened at the bottom of the surface of the tracer 5. The inner cavity of the mounting hole is provided with a mounting bolt. One end of the mounting bolt It is threadedly connected to the bolt holes on the surface of the mounting bracket 4, and positioning holes are provided on both sides of the surface of the mounting base 2, and there are six positioning holes. A sterile cover is provided on the top of the mounting base 2, and the top of the sterile cover is in contact with the bottom of the C-arm machine body 1. A card slot is provided on one side of the bottom of the C-arm machine body 1, and a card block is movably connected to the inner cavity of the card slot, and the bottom of the card block is fixedly connected to the top of the mounting base 2. A mounting platform is provided on one side of the mounting base 2, and a groove and a threaded hole are provided on the surface of the mounting platform. A convex bead is provided on the surface of the connecting tube 602, and a card hole is provided on the surface of the connecting base 604. An arc-edged rectangular opening is provided on the surface of the mounting base 2, and a circular hole is provided on the surface of the registration plate 3.
[0035] Specifically: the connecting component 6 acts as a connecting structure between the bottom side of the mounting base 2 and the mounting frame 4, thereby improving the stability of the tracer 5 on one side of the mounting frame 4. The structure composed of the connecting pin 601 and the connecting cylinder 602 has an elastic expansion function in the inner cavity of the connecting base 604, so that the tracer 5 on one side of the mounting frame 4 can cope with the interference of external forces. The mounting bolt in the inner cavity of the mounting hole on the surface of the tracer 5 is screwed until one end thereof is screwed into the bolt hole on the surface of the mounting frame 4, thereby installing the tracer 5 on one side of the mounting frame 4, and conveniently disassembling it later. The fixing strap is passed through the positioning hole and then wrapped around the C-arm machine body 1 and tied tightly, thereby fixing the mounting base 2 to the bottom of the C-arm machine body 1. The sterile cover between the mounting base 2 and the C-arm machine body 1 is a manifestation of dynamic sterile barrier technology. The combination of safety, structural design and motion adaptability ensures the functionality of the equipment while isolating the pollution source. The card block is inserted into the inner cavity of the card slot as the mounting base 2 moves. The limiting structure composed of the card block and the card slot can greatly improve the installation stability of the mounting base 2 installed on the bottom of the C-arm machine body 1. One side of the mounting bracket 4 is provided with a protrusion and a through hole that are compatible with the groove and threaded hole on the surface of the mounting table, which facilitates the stable installation of the mounting bracket 4 on the surface of the mounting table. The connecting tube 602 is rotated so that the convex beads on its surface are inserted into the card holes on the surface of the connecting base 604 for fixation. After pressing the convex beads to retract them, the connecting tube 602 can be pulled out. The arc-edged rectangular opening and the circular opening are opened so that the mounting base 2 and the alignment plate 3 do not affect the radiation output of the C-arm machine body 1, and more accurate images of the patient are taken.
[0036] Example 3
[0037] See also Figure 1-8 , based on the first and second embodiments,
[0038] An embodiment of the present invention provides a C-arm registration device, the core of which is to integrate the alignment plate 3 and the tracer 5 into the mounting base 2 through an integrated design, thereby simplifying the installation process and improving positioning accuracy. The mounting base 2 is fixedly connected to the alignment plate 3 by bolts, and six positioning holes are provided on both sides of its bottom for passing fixing straps to wrap around the C-arm body 1 for fastening. A sterile cover is provided on the top of the mounting base 2. The sterile cover is made of a transparent sterilization material such as a medical plastic film, and its edge is fixed by the gap between the connecting tube 602 and the connecting base 604 to form a dynamic sterile barrier, which not only isolates the pollution source but also does not affect the mechanical movement of the C-arm body 1.
[0039] A mounting platform is provided on one side of the mounting base 2, and grooves and threaded holes are provided on the surface for cooperating with the protrusions and through holes of the mounting frame 4 to ensure that the mounting frame 4 is firmly connected. The top of the mounting frame 4 is fixed to the bottom of the C-arm body 1 through a connecting component 6. The connecting component 6 includes a connecting pin 601, a connecting cylinder 602, a spring 603 and a connecting seat 604. The top of the connecting pin 601 is connected to the C-arm body 1 through a bolt, and the connecting cylinder 602 is fixed at the bottom. A spring 603 is sleeved on the outside of the connecting cylinder 602 and embedded in the inner cavity of the connecting seat 604. When the C-arm body 1 moves or is subjected to external force, the spring 603 provides elastic buffering to prevent the tracer 5 from shifting due to vibration or impact, thereby ensuring the stability of navigation positioning.
[0040] The tracer 5 is fixed to one side of the mounting frame 4 by mounting bolts. A mounting hole is provided at the bottom of the tracer 5 and is aligned with the bolt hole of the mounting frame 4. The installation is completed by screwing in the mounting bolts. When disassembling, the operation can be reversed to facilitate later maintenance or replacement. A circular hole is provided on the surface of the registration plate 3, and an arc-edged rectangular opening is provided at the corresponding position on the surface of the mounting seat 2. The two are designed to avoid blocking the X-ray output of the C-arm body 1, ensuring the clarity and accuracy of the image shooting. During installation, the registration plate 3 is first fixed to the bottom of the mounting seat 2 by bolts, and then the tracer 5 is installed on the mounting frame 4. Finally, the entire device is fixed under the C-arm body 1 by using a strap and a slot structure block to cooperate with the slot at the bottom of the C-arm body 1. This integrated design significantly shortens the surgical preparation time and reduces the positioning error caused by multiple disassembly and assembly.
[0041] The working principle of the present invention is as follows: move the registration plate 3 until the screw hole on the top is aligned with the screw hole on the bottom of the mounting base 2, screw the mounting screws into the screw holes of the two screw holes, and fix the registration plate 3 to the bottom of the mounting base 2 by means of the mounting screws. Continue to move the tracer 5 until the mounting hole on its surface is aligned with the bolt hole on the surface of the mounting frame 4, screw the mounting bolts into the mounting holes and bolt holes on the surfaces of the two, and install the tracer 5 on the surface of the mounting frame 4 on one side of the base by means of the mounting bolts. At this time, the connecting component 6 on the top of the mounting frame 4 is connected to the bottom of the mounting base 2. Finally, move the entire structure to The bottom of the mounting base 2 is close to the bottom of the C-arm body 1, and the mounting base 2 is fixed to the bottom of the C-arm body 1 by a strap. A sterile cover is set between the C-arm body 1 and the mounting base 2, and one side of the sterile cover is fixed between the connecting tube 602 and the connecting base 604. The C-arm body 1 needs to frequently adjust the angle such as anteroposterior and lateral fluoroscopy during the operation. Its mechanical arm and mounting base 2 may contact contaminated areas such as under the operating bed. The sterile cover covers the surface of the equipment with transparent sterilization materials such as plastic film or waterproof cloth to form a physical barrier to prevent bacteria from being transferred to the sterile area of the operation through the surface of the equipment.
[0042] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the invention to only the specific implementation methods described. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention.
Claims
1. A C-arm machine registration device, comprising a C-arm machine body (1), characterized in that: A mounting seat (2) is provided at the bottom of the C-arm machine body (1); a registration plate (3) is fixedly connected to one side of the bottom of the mounting seat (2) via bolts; a mounting frame (4) is provided on one side of the mounting seat (2); and a tracer (5) is provided on one side of the mounting frame (4).
2. A C-arm registration device according to claim 1, characterized in that: A connecting assembly (6) is provided on the top of the mounting frame (4), and the top of the connecting assembly (6) is fixedly connected to the bottom of the C-arm machine body (1) via bolts.
3. The C-arm registration device according to claim 2, characterized in that: The connecting assembly (6) comprises a connecting pin (601), the top of the connecting pin (601) is fixedly connected to the bottom of the C-arm machine body (1) via a bolt, the bottom of the connecting pin (601) is fixedly connected to a connecting cylinder (602), the surface of the connecting cylinder (602) is sleeved with a spring (603), a connecting seat (604) is provided on the outside of the connecting cylinder (602), and the bottom of the connecting seat (604) is fixedly connected to the top of the mounting frame (4).
4. The C-arm registration device according to claim 1, characterized in that: A mounting hole is provided at the bottom of the surface of the tracer (5), and a mounting bolt is provided in the inner cavity of the mounting hole. One end of the mounting bolt is threadedly connected to the bolt hole on the surface of the mounting frame (4).
5. The C-arm registration device according to claim 1, characterized in that: Positioning holes are provided on both sides of the surface of the mounting seat (2), and the number of the positioning holes is six.
6. The C-arm registration device according to claim 1, characterized in that: A sterile cover is provided on the top of the mounting seat (2), and the top of the sterile cover is in contact with the bottom of the C-arm machine body (1).
7. The C-arm registration device according to claim 1, characterized in that: A card slot is provided on one side of the bottom of the C-arm machine body (1); a card block is movably connected to the inner cavity of the card slot; and the bottom of the card block is fixedly connected to the top of the mounting seat (2).
8. The C-arm registration device according to claim 1, characterized in that: A mounting platform is provided on one side of the mounting seat (2), and a groove and a threaded hole are provided on the surface of the mounting platform.
9. The C-arm registration device according to claim 3, characterized in that: The surface of the connecting tube (602) is provided with a convex bead, and the surface of the connecting seat (604) is provided with a latching hole.
10. The C-arm registration device according to claim 1, characterized in that: A rectangular opening with an arc edge is provided on the surface of the mounting seat (2), and a circular hole is provided on the surface of the registration plate (3).
