An arm-type medical apparatus
By installing cable compensation sections and drag chain tracks inside the C-arm equipment, the problem of cable pulling and breaking during equipment movement is solved, achieving stable cable movement and improving equipment reliability.
Patent Information
- Application Number
- CN202520432058.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Cable routing for C-arm equipment is difficult to avoid during equipment movement due to pulling and breakage. External cabling affects the appearance, while internal cabling is difficult, especially in multi-axis equipment where the cable bundle diameter is large, which is difficult to solve effectively with existing technology.
An internal cable routing scheme is adopted, which uses cable compensation sections to automatically compensate for the extra length required for equipment movement. Combined with drag chain tracks to guide cable movement, it avoids accumulation and wear, and reduces friction through wear-resistant materials.
This enables stable cable movement within the equipment, avoiding the inconvenience of external cabling and the complexity of internal cabling, thereby improving equipment reliability and lifespan, and reducing costs.
Smart Images
Figure CN224671519U_ABST
Abstract
Description
Technical Field
[0001] This application relates to medical devices, and more particularly to an arm-type medical device. Background Technology
[0002] C-arm imaging devices are widely used in clinical diagnosis and treatment. C-arm devices typically have relative displacement and rotation functions, making their wiring design relatively complex. External wiring exposes the cables, affecting both appearance and movement. Internal wiring, however, requires consideration of the impact of device movement on cable routing. Furthermore, C-arm devices often use motorized axes, resulting in a large number of cables, especially fully motorized systems with additional electrical functions, where the internal cable bundle diameter can exceed 50mm. This further complicates internal wiring. Utility Model Content
[0003] In view of this, this application provides an arm-type medical device in which the cable is laid inside the device and the cable has a cable compensation section, which can automatically compensate for the extra cable length required for the movement of the device without the help of other cable storage devices.
[0004] This application provides an arm-type medical device, including a cable, a main body, a slide, and a rotating support. The slide is disposed on the upper end of the main body and is capable of vertical lifting and horizontal movement relative to the main body. The rotating support is connected to one side of the slide in the horizontal direction. The cable includes a lifting cable disposed within the main body and a horizontal movement cable disposed within the slide. The lifting cable includes a first margin compensation section, which compensates for the cable length required for the slide to rise when it moves vertically. The horizontal movement cable includes a second margin compensation section, which compensates for the cable length required for the slide to move horizontally when it moves horizontally toward the rotating support. The horizontal movement cable is disposed on a cable chain, which guides the movement of the horizontal movement cable when the slide moves horizontally.
[0005] Furthermore, the first surplus compensation segment includes a first longitudinal segment and a second longitudinal segment that are interconnected.
[0006] Furthermore, one end of the first margin compensation section is fixed relative to the main body, and the other end of the first margin compensation section can rise and fall with the rise and fall of the slide block.
[0007] Furthermore, when the slide moves laterally toward the rotating bracket, one end of the second margin compensation section is fixed relative to the main body, while the other end moves laterally with the slide.
[0008] Furthermore, the second margin compensation section includes a first transverse section and a second transverse section that are interconnected.
[0009] Furthermore, the first transverse segment and the second transverse segment are on the same horizontal plane.
[0010] Furthermore, the main body is provided with a rotating shaft, the slide can rotate around the rotating shaft, and the lifting cable passes through the axis of the rotating shaft.
[0011] Furthermore, the rotating bracket has a rotating shaft, the rotating bracket is capable of rotating around the rotating shaft, and the cable passes through the axis of the rotating shaft and enters the rotating bracket from the slide.
[0012] Furthermore, the rotating shaft, and / or the rotating shaft is provided with a crossed roller bearing, and wear-resistant material is provided on the rotating shaft, and / or the rotating shaft at the position corresponding to the rotation of the cable.
[0013] Furthermore, the traverse cable also includes a clearance section, which is connected to the lifting cable passing through the axis of the rotating shaft, and the clearance section causes the second margin compensation section to be away from the rotating shaft.
[0014] The technical solutions provided by the embodiments of this application may include the following beneficial effects:
[0015] This application provides a first margin compensation section and a second margin compensation section in the main body and the slide respectively, which can be used for cable compensation. This allows the lifting cable to adaptively compensate for the cable length based on its own gravity to meet the lifting and lowering movement of the slide. In addition, the lateral cable located in the slide, through its cooperation with the drag chain track, allows the lateral cable to move on a predetermined track without causing cable accumulation and damage when the slide is moving laterally. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of a C-arm device;
[0017] Figure 2 for Figure 1 A schematic diagram of the internal cable structure;
[0018] Figure 3 yes Figure 1 Front view of a C-arm boom assembly;
[0019] Figure 4 yes Figure 3 A schematic diagram of the internal cable structure.
[0020] Figure label:
[0021] 1. Main body; 11. Lifting column; 2. Slide block; 3. Rotating bracket; 31. Rotating shaft; 4. Rotating arm; 5. Cable; 51. Lifting cable; 511. First margin compensation section; 5111. First longitudinal section; 5112. Second longitudinal section; 52. Lateral cable; 521. Second margin compensation section; 5211. First transverse section; 5212. Second transverse section; 522. Avoidance section; 53. Exposed section. Detailed Implementation
[0022] The specific embodiments of this application are described in detail below with reference to the accompanying drawings.
[0023] Figure 1 This is a schematic diagram of a C-arm boom device. The C-arm boom device includes a main body 1, a slide 2, a rotating support 3, and a rotating arm 4. The slide 2 is disposed at the top of the main body 1, and the slide 2 can move vertically along the Y-axis and laterally along the X-axis relative to the main body 1. In this embodiment, the C-arm boom device is placed on a flat ground. The Y-axis represents the vertical direction perpendicular to the ground, and the X-axis represents the horizontal direction parallel to the ground. To enable the slide 2 to move vertically relative to the main body 1, as shown... Figure 3 As shown, a lifting column 11 protruding from the main body 1 is provided inside the main body 1. A sliding ram 2 is connected to the top of the lifting column 11. As the lifting column 11 moves up and down, the sliding ram 2 can move up and down in the vertical direction. Figure 1 As shown, the slide 2 can also rotate around the Z1 axis at a certain angle. In this embodiment, the lifting column 11 not only serves as the lifting device of the slide 2, but also as the rotation axis of the slide 2. The slide 2 can rotate around the lifting column 11 at a certain angle.
[0024] A rotating bracket 3 is rotatably connected to one side of the slide 2 along the lateral direction. The rotating bracket 3 is provided with a rotating shaft, and the rotating bracket 3 can rotate around the rotating shaft (equivalent to...). Figure 1 The rotating arm 4 (Z2 axis) rotates at a certain angle. The rotating bracket 3 is connected to the rotating arm 4, which can slide in a C-shape on the rotating bracket 3. As mentioned above, C-arm devices typically have multiple motion functions, and these movements cause changes in the relative positions of the components. Therefore, the relative position changes of the devices need to be considered during cable routing. If the internal cable layout is not properly designed, cable pulling or even breakage can easily occur during device movement, affecting the device's lifespan. Existing technologies include solutions using external cabling, but this not only affects the overall appearance of the device, but the exposed cables can also easily interfere with the doctor's operation or the device's operation, which is very inconvenient.
[0025] like Figure 1 and Figure 2As shown, to avoid the impact of external cables on the C-arm equipment, cable 5 can be laid inside the equipment. Cable 5 is a cable that starts from the main body 1, passes through the slide 2, and enters the rotating bracket 3. Cable 5 includes a lifting cable 51 and a traversing cable 52, wherein the lifting cable 52 is located inside the main body 1, and the traversing cable 52 is located inside the slide 2. One end of the lifting cable 51 is fixed to the main body 1, and the other end is fixed to the slide 2, wherein the end fixed relative to the slide 2 can rise and fall with the rise and fall of the slide 2. Since the two ends of the lifting cable 51 are respectively fixed to two components that can undergo relative position changes, the cable length requirements during the relative movement between the two components need to be considered during the cable laying process. In order to prevent the cable 5 from breaking when the relative height of the main body 1 and the slide 2 changes, the lifting cable 51 includes a first margin compensation section 511. When the slide 2 moves upward in the vertical direction, that is, when the distance between the lifting cable 51 and the fixed ends of the main body 1 and the slide 2 increases, the first margin compensation section 511 can compensate for the additional cable length required for the slide 2 to rise.
[0026] Specifically, such as Figure 2 As shown, the first margin compensation section 511 may include a first longitudinal section 5111 and a second longitudinal section 5112, forming an overall U-shape. One end of the first margin compensation section 511 is fixed to the main body 1, while the other end rises and falls with the slide 2. When the slide 2 moves upwards vertically, it causes the second longitudinal section 5112 to move upwards, causing the end connecting the first and second longitudinal sections 5111 to change orientation and move upwards. When the slide 2 moves upwards a certain distance, the first longitudinal section 5111 changes its shape to release a corresponding length of cable to compensate for the additional cable length required for the slide 2 to rise.
[0027] In this embodiment, the first longitudinal segment 5111 and the second longitudinal segment 5112 are arranged vertically and hang down inside the main body 1. This saves more internal space compared to laying the first allowance compensation segment 511 on the surface of the main body 1. At the same time, the hanging first longitudinal segment 5111 and the second longitudinal segment 5112 can move in a predetermined direction by their own weight, avoiding the cable 5 from getting tangled with the components inside the main body 1 and affecting the movement of the cable 5.
[0028] Existing technologies employ a cable drum for winding and unwinding to provide the required cable length during the ascent of the ram 5. However, cable drums are generally more suitable for cables with smaller diameters and are not applicable to cables exceeding 50mm in diameter. This is because winding the cable becomes difficult due to its large diameter, and the resulting volume increases the overall size of the equipment. Furthermore, the ram 2's lifting function is used frequently, and frequent winding and unwinding can easily lead to wear and tear on the cable 5, affecting the normal operation of the equipment. The technical solution adopted in this application, through a rational layout of the cable 5, not only avoids the use of a cable drum, reducing equipment costs, but also makes the cable 5 more durable.
[0029] A lateral moving cable 52 is disposed within the slide ram 2. When the slide ram 2 moves laterally relative to the main body 1, one end of the lateral moving cable 52 can be fixed relative to the main body 1, while the other end can move laterally with the slide ram 2. During the lateral movement of the slide ram 2, the distance between the two ends of the lateral moving cable 52 changes with the movement of the slide ram 2. Therefore, in order to accommodate the change in the length requirement of the lateral moving cable 52 due to the lateral movement of the slide ram 2, the lateral moving cable 52 includes a second margin compensation section 521, which is used for the cable length required for the lateral movement of the slide ram 2.
[0030] Specifically, the second margin compensation section 521 is U-shaped and includes a first transverse section 5211 and a second transverse section 5212 that are connected to each other. The first transverse section 5211 and the second transverse section 5212 are arranged in the horizontal direction of the transverse movement of the slide block 2.
[0031] Since the lateral movement cable 52 and the lifting cable 51 are two parts of the same cable, their movements are linked. If the cable 51 is not secured, it can easily wander inside the equipment. Furthermore, the first and second allowance compensation sections 511 and 521 may not be able to compensate for the cable movement when the slide 2 moves accordingly. In special cases, it may happen that when the slide 2 moves laterally, the first allowance compensation section 511 compensates for the cable movement, instead of the second allowance compensation section 521. Therefore, to ensure that the first and second allowance compensation sections 511 and 512 provide cable compensation when the slide 2 moves specifically, they are secured to the equipment in a certain way. In this embodiment, one end of the first allowance compensation section 511 is fixed relative to the main body 1, and the other end is fixed relative to the slide 2, allowing it to rise and fall with the slide 2. One end of the second margin compensation section 521 is fixed to the lifting column 11 of the main body 1, and the other end is fixed to the slide 2. When the slide 2 moves laterally toward the rotating bracket 3, the end fixed to the lifting column 11 is fixed relative to the main body 1, while the other end can move laterally with the slide 2.
[0032] During the lateral movement of the ram 2, the cable 5 needs to change its shape to adapt to the movement of the ram 2. However, the cable 5 is flexible, and without the action of other external mechanisms, it is difficult to limit the movement trajectory of the cable 5, especially after the ram 2 has moved laterally from its initial state. The distance between the two ends of the second margin compensation section 521 increases. To return the ram 2 to its initial state, the distance between the two ends of the second margin compensation section 521 needs to be brought closer again. However, because the cable 5 is flexible, it is easy for the cable 5 to accumulate during the lateral movement. Accumulated cable may affect the movement of the equipment or damage internal parts. To avoid such occurrences, the lateral moving cable 52 can be placed on a cable chain track. The cable chain track guides the movement trajectory of the cable 5 during the lateral movement of the ram 2.
[0033] In this embodiment, the application of drag chain track enables the orderly movement of cable 5 in ram 2 without the need for external power equipment, and also reduces the friction between cable 5 and equipment during movement, thus reducing the wear of cable 5.
[0034] The cable 5 itself has a relatively large diameter. Placing it on the cable chain track will increase the lateral distance between the first lateral segment 5211 and the second lateral segment 5212 of the second allowance compensation section 521, resulting in a larger lateral width for the second allowance compensation section 521. Meanwhile, the ram 2, as a moving component mounted on the main body 1, typically needs to have a relatively small height to ensure the equipment's center of gravity is at a stable height. If the ram 2 is too high, it can easily affect the stability of its lateral and lifting movements. Figure 3 and Figure 4 As shown, in order to allow the second margin compensation section 521 to be set in the slide block 2, the first transverse section 5211 and the second transverse section 5212 of the second margin compensation section 521 can be set on the same horizontal plane to lower the center of gravity of the equipment.
[0035] Since the ram 2 needs to rotate around the lifting column 11 at a certain angle, in order to avoid twisting the cable 5 during rotation, such as... Figure 3 As shown, one end of the cable 5 located inside the main body 1 is passed through the axis of the lifting column 11. With this configuration, even when the slide 2 rotates around the lifting column 11, the cable 5 will not be twisted or deformed due to the rotation. Similarly, to avoid the influence of the rotation of the rotating bracket 3 on the cable 5, the cable 5 located inside the slide 2 is passed through the axis of the rotating shaft 31 of the rotating bracket 3.
[0036] Although cable 5 passes through the axis of the lifting column 11 and the axis of the rotating shaft 31, the lifting column 11 and the rotating shaft 31 will inevitably cause wear to the rotating parts of cable 5 when the equipment rotates. In order to reduce the degree of wear and extend the life of cable 5, both the lifting column 11 and the rotating shaft 31 adopt large-diameter crossed roller bearings. At the same time, wear-resistant material is provided on the inner wall of the lifting column 11 and the rotating shaft 31 corresponding to the rotating part of cable 5 to reduce the coefficient of friction and protect cable 5. The wear-resistant material can be POM or polytetrafluoroethylene, etc. In this embodiment, cable 5 passes through the lifting column 11 and enters the slide ram 2. The transverse cable 52 located in the slide ram 2 can rotate relative to the lifting cable 51 located in the main body 1. In order to reduce the wear of cable 5 caused by rotation, wear-resistant material can be provided on the inner wall of the top of the lifting column 11. Similarly, the cable 5 located in the rotating bracket 3 can rotate relative to the cable 5 in the slide ram 2, so wear-resistant material can be provided on the inner wall of the end of the rotating shaft 31.
[0037] like Figure 3 and Figure 4 As shown, the traverse cable 52 also includes a clearance section 522. One end of the clearance section 522 is connected to one end of the lifting cable 51 that passes through the axis of the lifting column 11, and the other end of the clearance section 522 is connected to one end of the second margin compensation section 521. The clearance section 522 is used to avoid the lifting column 11, so that the traverse cable 52 can avoid contact with the lifting column 11, reducing the wear of the cable 5 on the cable 5 due to the rotation of the lifting column 11. In this embodiment, the clearance section 522 is a straight line arranged vertically. The way the clearance section 522 is arranged ensures that the cable 5 located in the slide ram 2 does not contact the lifting column 11, thereby reducing the wear of the cable 5 on the cable 5 due to the rotation of the lifting column 11.
[0038] The rotating bracket connects to the rotating arm 4, which can slide relative to the rotating bracket 3. Due to the relatively limited internal space of the rotating arm 4, using internal wiring would result in a more complex structure. To reduce the cost of cable 5 installation, the cable connecting the rotating bracket 3 and the rotating arm 4 can be externally routed. Figure 1 As shown, in this embodiment, the cable 5 also includes an exposed section 53 disposed outside the device. One end of the exposed section 53 is fixed to the rotating bracket 3, and the other end is fixed to the rotating arm 4. When the rotating arm 4 slides in a C-shape, the exposed section 53 can change its shape to meet the movement of the rotating arm 4.
Claims
1. An arm-type medical device, comprising a cable (5), a main body (1), a slide (2), and a rotating support (3), wherein the slide (2) is disposed on the upper end of the main body (1), the slide (2) is capable of vertical lifting and horizontal movement relative to the main body (1), and the rotating support (3) is connected to one side of the slide (2) in the horizontal direction, characterized in that, The cable (5) includes a lifting cable (51) disposed in the main body (1) and a lateral cable (52) disposed in the slide (2). The lifting cable (51) includes a first margin compensation section (511). When the slide (2) moves upward in the vertical direction, the first margin compensation section (511) is used to compensate for the cable length required for the slide (2) to rise. The lateral cable (52) includes a second margin compensation section (521). When the slide (2) moves laterally toward the rotating bracket (3), the second margin compensation section (521) is used to compensate for the cable length required for the slide (2) to move laterally. The lateral cable (52) is disposed on a drag chain. The drag chain is used to guide the lateral cable (52) to move when the slide (2) moves laterally.
2. The arm-type medical device according to claim 1, characterized in that, The first margin compensation section (511) includes a first longitudinal section (5111) and a second longitudinal section (5112) that are connected to each other.
3. The arm-type medical device according to claim 1, characterized in that, One end of the first margin compensation section (511) is fixed relative to the main body (1), and the other end of the first margin compensation section (511) can rise and fall with the slide (2).
4. The arm-type medical device according to claim 1, characterized in that, When the slide (2) moves laterally toward the rotating bracket (3), one end of the second margin compensation section (521) is fixed relative to the main body (1), and the other end moves laterally with the slide (2).
5. The arm-type medical device according to claim 1, characterized in that, The second margin compensation section (521) includes a first transverse section (5211) and a second transverse section (5212) that are connected to each other.
6. The arm-type medical device according to claim 5, characterized in that, The first transverse segment (5211) and the second transverse segment (5212) are on the same horizontal plane.
7. The arm-type medical device according to claim 1, characterized in that, The main body (1) is provided with a rotating shaft, the slide (2) can rotate around the rotating shaft, and the lifting cable (51) passes through the axis of the rotating shaft.
8. The arm-type medical device according to claim 7, characterized in that, The rotating bracket (3) has a rotating shaft (31) and is able to rotate around the rotating shaft (31). The cable (5) passes through the axis of the rotating shaft (31) and enters the rotating bracket (3) from the slide (2).
9. The arm-type medical device according to claim 8, characterized in that, The rotating shaft (31) is provided with a cross roller bearing, and wear-resistant material is provided at the position of the rotating shaft (31) corresponding to the rotation of the cable (5).
10. The arm-type medical device according to claim 7, characterized in that, The traverse cable (52) also includes a clearance section (522) which is connected to the lifting cable (51) passing through the axis of the rotating shaft. The clearance section (522) causes the second margin compensation section (521) to move away from the rotating shaft.