Graph adapter assembly with connecting device

Abstract

The utility model relates to a figure adapter assembly with a connecting device, which comprises a connecting device and a figure adapter, the connecting device is used for connecting the figure adapter to one end of a C-shaped arm of a C-arm machine, the connecting device comprises at least two connecting members, and each connecting member comprises a flexible body with a rectangular cross section, a locking device through which the flexible body passes, the locking device being operable so as to move relative to the flexible body and locking the flexible body in a locked state so as to prevent the flexible body from moving relative to the locking device, a fixed connection portion, one end of the fixed connection part is connected to the locking device, and the other end is connected to the graphic adapter. According to the utility model, the connecting member with the flexible body is adopted, and the actual connecting length of the flexible body is adjusted through the locking device, so that the connection between different graphic adapters and different C-arm machines is rapid and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a graphic adapter assembly with a connecting device. Background Art

[0002] The C-arm machine is a medical imaging device, usually used for X-ray imaging, angiography and other interventional surgeries. The C-arm machine consists of a movable C-shaped arm and an X-ray emitter and detector connected to the C-shaped arm. The C-arm machine has flexibility and can be operated in the operating room or other medical environments to provide high-quality real-time images to assist doctors in diagnosis and treatment.

[0003] As a specific application, in a medical system such as an orthopedic robot system, the images scanned by the C-arm machine are usually used for surgical planning, and then the robot is guided to perform the surgery. Robot surgery requires establishing the coordinate relationships among the C-shaped arm, the patient and the robot navigation system, which requires installing a graphic adapter and a tracer on the C-arm to establish the above coordinate relationships. Summary of the Utility Model

[0004] Since there are many manufacturers of C-shaped arms and many models of C-shaped arms produced, the structures of the C-shaped arms of each manufacturer are therefore different. The C-shaped arm, the graphic adapter and the tracer are generally provided by different manufacturers. Therefore, installing the graphic adapter and the tracer on different C-shaped arms and ensuring the required positioning accuracy are problems to be solved.

[0005] For this reason, according to one aspect of the utility model, there is provided a graphic adapter assembly with a connecting device. The graphic adapter assembly includes a connecting device and a graphic adapter. The connecting device is used to connect the graphic adapter to one end of the C-shaped arm of the C-arm machine.

[0006] The connecting device includes at least two connecting members, and each connecting member includes:

[0007] A flexible body, the flexible body having a rectangular cross-section, one end of the flexible body being adapted to be fixed to an elongated member on the C-shaped arm.

[0008] A locking device, the flexible body passing through the locking device, the locking device being operable to move relative to the flexible body and locking the flexible body in a locked state to prevent the flexible body from moving relative to the locking device.

[0009] A fixed connection part, one end of the fixed connection part being connected to the locking device and the other end being connected to the graphic adapter.

[0010] As can be seen from the above, the present utility model adopts a connecting member with a flexible body, and adjusts the actual connecting length of the flexible body through a locking device. When connecting graphic adapters of different sizes to different C-arm machines, the actual connecting length of the flexible body is adjusted to tightly fix the graphic adapter to the C-arm machine, making the connection between different graphic adapters and different C-arm machines fast and reliable.

[0011] According to an example of the present utility model, the locking device includes a first arm and a second arm, which can rotate relative to each other and can cause the locking device and the flexible body to move relative to each other during the relative rotation.

[0012] According to an example of the present utility model, the fixed connection part is connected to one of the first arm and the second arm of the locking device.

[0013] According to an example of the present utility model, a connecting element is provided at one end of the flexible body adapted to be fixed to the elongated member. The connecting element has three transverse arm portions and a longitudinal arm portion connecting the three transverse arm portions. Two openings are formed on the side of the three transverse arm portions opposite to the longitudinal arm portion.

[0014] According to an example of the present utility model, at least one of the transverse arm portions is provided with a portion extending parallel to the longitudinal arm portion at the end away from the longitudinal arm portion, so as to prevent the flexible body disposed in the opening from slipping off.

[0015] According to an example of the present utility model, a stop portion is provided at the other end of the flexible body.

[0016] According to an example of the present utility model, the graphic adapter has a connecting portion connected to the fixed connection part.

[0017] According to an example of the present utility model, a gasket is provided on the side of the graphic adapter facing the C-arm.

[0018] According to an example of the present utility model, it further includes a tracer, and a tracer connecting portion for connecting with the tracer is provided on the graphic adapter.

[0019] According to an example of the present utility model, three holes are provided on the tracer connecting portion, and the tracer is connected to the graphic adapter through a circular positioning pin, a diamond-shaped positioning pin and a threaded connecting member respectively passing through the three holes.

[0020] Other features and advantages of the present utility model will be presented in the following specific description in conjunction with the drawings. Description of the Drawings

[0021] The features and advantages of the present utility model will be clearly understood from the following detailed description with reference to the accompanying drawings. It should be understood that the following drawings are merely schematic and not necessarily drawn to scale, and thus should not be considered as limiting the present utility model, where:

[0022] Figure 1 shows a schematic structural diagram of an exemplary C-arm machine.

[0023] Figure 2 shows a perspective view of a graphics adapter and a tracer provided with a connecting device according to the present utility model.

[0024] Figure 3 shows a perspective view of one of the connecting members of the connecting device according to the present utility model.

[0025] Figure 4 shows a perspective view of the graphics adapter according to the present utility model.

[0026] Figure 5 shows a perspective view of the tracer according to the present utility model. Detailed implementation manners

[0027] The embodiments of the present utility model will be described below with reference to the accompanying drawings. In the following description, many specific details are set forth in order to enable those skilled in the relevant art to more fully understand and implement the present utility model. However, it is obvious to those skilled in the relevant art that some of these specific details may not be required for the implementation of the present utility model. In addition, it should be understood that the present utility model is not limited to the specific embodiments described. On the contrary, the present utility model can be implemented by any combination of the features and elements described below, regardless of whether they relate to different embodiments. Therefore, the following aspects, features, embodiments, and advantages are for illustrative purposes only and should not be regarded as features or limitations of the claims, unless expressly recited in the claims.

[0028] In the following description, the descriptions of directions that may be used, such as "up", "down", "inside", "outside", "radial direction", "axial direction", etc., are for convenience of description only and are not intended to impose any limitation on the technical solutions of the utility model, unless otherwise clearly stated. In addition, terms such as "first", "second", etc. are used in the following to describe the elements of the present application, and these terms are only used to distinguish the various elements and are not intended to limit the nature, sequence, order, or number of these elements.

[0029] Figure 1 shows a schematic structural diagram of an exemplary C-arm machine. As Figure 1As shown, the C-arm machine 100 includes a C-arm 103 that is structurally C-shaped. A first end for receiving, for example, X-rays and a second end for emitting, for example, X-rays are respectively provided at two ends of the C-arm 103. As an example, in Figure 1 the emitting end, i.e., the second end 102, is located below, and the receiving end, i.e., the first end 101, is located above. Those skilled in the art know that during actual use, since the C-arm 103 can rotate, the relative positional relationship between the two ends will also change accordingly. The connecting device according to the present invention, which will be described in detail below, is used to connect a graphics adapter or also including a tracer to the first end 101.

[0030] As Figure 1 shown, on the C-arm 103, there are generally also provided slender members, such as a first feature 104 and a second feature 105. For example, the first feature 104 and the second feature 105 are used as handrails to facilitate the movement of the C-arm 103. The first feature 104 and the second feature 105 can be metal members with a certain diameter. As an example, both the first feature 104 and the second feature 105 are U-shaped. The first feature 104 can partially surround one end of the C-arm 103, and there can be two second features 105, which are respectively provided on two sides of the half part of the C-arm 103 close to the second end 101. The two arms of each U-shaped are connected to the side surface of the C-arm 103. Those skilled in the art know that for C-arm machines 100 from different manufacturers, the structures of the first feature 104 and the second feature 105 may be different from Figure 1 shown, but they will all have a part perpendicular to the side surface of the C-arm 103, and this part can provide the required connection position for the connecting device 400 described below.

[0031] The C-arm machine 100 may also include, for example, a display device, etc., and includes at least one caster to facilitate the movement of the C-arm machine 100.

[0032] In order to perform distortion correction and navigation on the imaging of the C-arm machine, a graphics adapter and a tracer are usually installed on the C-arm machine. Figure 2 The perspective view of the graphics adapter and the tracer provided with the connecting device according to the present invention is shown, where the tracer 300 is fixed to the graphics adapter 200, and the connecting device 400 is connected to the graphics adapter 200 on the one hand and to the C-arm machine 100 on the other hand, thereby fixing the graphics adapter 200 and the tracer 300 connected thereto to the first end 101 of the C-arm machine 100.

[0033] Figure 3 The perspective view of one of the connecting members of the connecting device according to the present invention is shown. Combining Figure 2 and Figure 3It can be seen that the connecting device 400 may include three connecting members. Those skilled in the art know that other numbers of connecting members can also be provided, such as two or four. The connecting member includes a flexible body 420, which has two ends. A connecting element 410 is fixedly provided at one end, and a stop portion 421 is provided at the other end. Specifically, the flexible body 420 can be a belt with a flat cross-section. One end of it is folded or the like so that the thickness of this end increases, thereby forming the stop portion 421. The connecting element 410 can adopt, for example, an E-shaped member, which thus has three transverse arm portions and a longitudinal arm portion connecting the three transverse arm portions. Two openings are formed on the side of the three transverse arm portions opposite to the longitudinal arm portion, through which the flexible body 420 can pass. The flexible body 420 is formed with a ring portion, for example, in a folded manner, at one end opposite to the stop portion 421, so that it can be sleeved on a transverse arm portion of the connecting element 410. In order to prevent the ring portion of the flexible body 420 from slipping out of the opening, a portion extending substantially parallel to the longitudinal arm portion is provided at the end of this transverse arm portion, so as to at least partially close the opening, thereby preventing the ring portion from sliding along this transverse arm portion.

[0034] The connecting device 400 further includes a locking device 430. The flexible body 420 passes through the locking device 430. When the locking device 430 works, it can pull the flexible body 420 to move in one direction and can prevent it from moving arbitrarily. The locking device 430 can include a ratchet lock structure, thereby being able to realize pulling the flexible body 420 only in one direction and locking the flexible body 420 at any time. As Figure 3 shown, the locking device 430 includes two arm portions that can rotate relative to each other. When in use, the flexible body 420 can be pulled by rotating the two arm portions relative to each other.

[0035] Compared with the fact that the flexible body 420 can move through the locking device 430, the connecting device 400 further includes a fixed connection portion 440. The fixed connection portion 440 can also adopt a strip structure. One end of it is connected to the end of an arm of the locking device 430, and the other end is connected to the graphics adapter 200, as Figure 2 shown. Figure 4 A perspective view of the graphics adapter according to the present invention is shown. It can be clearly seen from Figure 4 that a connection portion 210 for connecting with the fixed connection portion 440 is provided on the graphics adapter. The connection portion 210 can be an elongated member for the fixed connection portion 440 to wind around.

[0036] Next, in combination with Figures 1 to 4, how the connecting device 400 of the present utility model connects the graphic adapter 200 to the C-arm machine 100 will be described. Taking the case where there are 3 connecting members as an example, one end of the fixed connection part 440 of each connecting member is connected to the connecting part 210 of the graphic adapter, and the other end is connected to one arm of the locking device 430. The flexible body 420 is passed through the locking device 430, and then one end thereof is connected to the connecting element 410, and then this end is wound around the first feature 104 or the second feature 105 of the C-arm machine 100, for example, by passing the flexible body 420 through another opening of the connecting element 410. After the connection is completed, the flexible body 420 is wound around the corresponding part on the C-arm machine 100, and thus becomes a fixed end. Then, by operating the locking device 430, the locking device 430 moves relative to the flexible body 420, and further drives the graphic adapter 200 to move upward, that is, toward the first end 101 of the C-arm machine 100 through the fixed connection part 440. The same operation can be performed on the remaining connecting members of the connecting device 400 until the graphic adapter 200 is completely fastened to the first end 101 of the C-arm machine 100.

[0037] As can be seen from the above, the present utility model proposes a connecting device for fixing a graphic adapter to the C-shaped arm of a C-arm machine. Since a locking device is used to adjust the actual use length of the flexible body and lock the flexible body at any position, different-sized graphic adapters can be connected to different-sized C-arm machines, and the fixation is reliable.

[0038] Those skilled in the art know that for the structure of the connecting device and its specific usage method, different connection methods can be adopted according to the length of the flexible body, the length of the fixed connection part, the size of the graphic adapter, and the size and structure of the C-arm machine. For example, when the length of the flexible body and the length of the fixed connection part are small, the flexible body and the fixed connection part of each connecting member can be located on the same side of the graphic adapter, thereby completing the fixation. When the length of the flexible body is long, one end of the flexible body provided with the connecting element can cross one side of the graphic adapter and be located on both sides of the graphic adapter with the fixed connection part of the same connecting member.

[0039] As an alternative embodiment, when there are 3 connecting members, as Figure 2 shown, the fixed connection part 440 of one connecting member separately provided on one side of the graphic adapter may include two parallel connecting bands for connecting to the corresponding connecting part 210 on the graphic adapter, thereby ensuring the stability of the installation.

[0040] According to another improvement of the present utility model, a structure for connecting a tracer to the graphic adapter is also proposed. As Figure 5 shown. Figure 5A perspective view of a tracer according to the present utility model is shown. In combination with Figure 4 and Figure 5 it can be seen that tracer connection parts 220 are respectively arranged on opposite sides of the graphics adapter, and are respectively used to connect with a tracer 300. The tracer 300 includes a tracer body 310, on which at least one marker is arranged. Figure 5 A side surface of the tracer 300 for connecting with the graphics adapter is shown in . As a specific example, the tracer body 310 has two long arms and two short arms, and a marker is respectively arranged at each end of the two long arms. At the middle position of the tracer body 310, a part for connecting with the tracer connection part 220 of the graphics adapter is arranged. Specifically, three holes are arranged on this part, which are respectively a first hole for a threaded connector 311 to pass through, and a second hole and a third hole on both sides of the first hole. Specifically, the second hole is a circular hole for a circular first positioning pin 312 to pass through. The first positioning pin 312 can limit the movement of the tracer body 310 in two directions, but cannot limit the rotation of the tracer body 310. The third hole is also a circular hole for a second positioning pin 313 with a substantially diamond-shaped contour to pass through. The second positioning pin 313 and the first positioning pin 312 jointly achieve the constraint of the tracer 300, and then the threaded connector 311 can be used to fix the tracer 300 on the graphics adapter 200.

[0041] As Figure 4 shown, the graphics adapter 200 further includes a gasket 230 arranged on a surface of a part thereof in direct contact with the C-arm. The gasket 230 can increase the friction between the graphics adapter and the C-arm machine, so as to achieve a tight fit between the graphics adapter and the C-arm machine, avoid relative movement between the two, and can also avoid damaging the C-arm when locking. For this reason, the gasket 230 can be made of materials such as silica gel. The gasket 230 can adopt an annular or polygonal shape.

[0042] The above has described in detail each specific structure and specific usage mode of the present utility model. For those skilled in the art, various modifications and variations can be made to the embodiments disclosed above without departing from the scope or spirit of the present utility model. According to the practice of the present utility model disclosed in this specification, other embodiments of the present utility model are obvious to those skilled in the art. This specification and the examples disclosed therein should be considered as illustrative only, and the true scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A graphics adapter component with a connection device, characterized in that, The graphic adapter assembly includes a connecting device (400) and a graphic adapter (200). The connecting device is used to connect the graphic adapter (200) to one end of the C-arm (103) of the C-arm machine (100). The connecting device (400) includes at least two connecting members, and each connecting member includes: A flexible body (420) having a rectangular cross-section. One end of the flexible body is adapted to be fixed to an elongated member on the C-arm (103). A locking device (430) through which the flexible body passes. The locking device can be operated to move relative to the flexible body and lock the flexible body in a locked state to prevent the flexible body from moving relative to the locking device. A fixed connection part (440) with one end connected to the locking device (430) and the other end connected to the graphic adapter (200).

2. The graphic adapter component according to claim 1, wherein The locking device (430) includes a first arm and a second arm that can rotate relative to each other and can cause the locking device and the flexible body to move relative to each other during relative rotation.

3. The graphics adapter component according to claim 2, characterized in that, The fixed connection part (440) is connected to one of the first arm and the second arm of the locking device (430).

4. The graphics adapter component according to any one of claims 1-3, characterized in that, One end of the flexible body adapted to be fixed to the elongated member is provided with a connecting element (410) having three transverse arm portions and a longitudinal arm portion connecting the three transverse arm portions. The three transverse arm portions form two openings on the side opposite to the longitudinal arm portion.

5. The graphic adapter component according to claim 4, wherein At least one of the transverse arm portions is provided with a portion extending parallel to the longitudinal arm portion at its end away from the longitudinal arm portion to prevent the flexible body disposed in the opening from slipping off.

6. The graphics adapter component according to any one of claims 1-3, characterized in that The flexible body (420) is provided with a stop portion (421) at the other end.

7. The graphics adapter component according to any one of claims 1-3, characterized in that, The graphic adapter (200) has a connection portion (210) connected to the fixed connection part (440).

8. The graphics adapter component according to claim 7, wherein A gasket (230) is provided on the side of the graphic adapter (200) facing the C-arm (103).

9. The graphics adapter component according to any one of claims 1-3, characterized in that, It further includes a tracer (300), and a tracer connection portion (220) for connecting to the tracer (300) is provided on the graphic adapter (200).

10. The graphics adapter component according to claim 9, wherein Three holes are provided on the tracer connection portion (220). The tracer (300) is connected to the graphic adapter (200) through a circular positioning pin, a diamond-shaped positioning pin, and a threaded connector respectively passing through the three holes.

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