C-shaped arm fixing device

Abstract

The utility model relates to the technical field of medical machinery, in particular to a C-shaped arm fixing device. Comprising a mechanical arm body composed of a main arm assembly and an auxiliary arm assembly, telescopic driving mechanisms are arranged at the two ends of the main arm assembly, and the length can be adjusted to adapt to different patients; the auxiliary arm assembly moves up and down through the moving driving mechanism, the height and angle of the arm can be adjusted conveniently, and the operation requirement is met. The main arm assembly adopts multi-stage sleeving; the telescopic driving mechanism and the movable driving mechanism are driven by electric push rods and motors in a matched mode, and adjustment is accurate and stable. The arm fixing mechanism is used for fixing the arm, so that the safety and comfort in the operation process are ensured. In addition, the mechanical arm supporting seat and the uninjured side of the operating bed can be installed together, and the voice control box is conveniently fixed to the uninjured side of the operating bed and is regulated and controlled through voice instructions. According to the C-shaped arm fixing device, different positions of the shoulder joint can be exposed, safety and efficiency of an operation are improved, and safety guarantee is provided for a patient in the operation.

Description

Technical Field

[0001] This utility model relates to the field of medical machinery technology, specifically to a C-shaped arm fixation device. Background Technology

[0002] Shoulder injuries are one of the most common causes of shoulder pain and dysfunction. In recent years, with the development of sports medicine, more and more patients with shoulder injuries have been diagnosed and treated. However, shoulder injuries remain extremely challenging in clinical practice.

[0003] Currently, both domestically and internationally, the beach chair position and the lateral decubitus position with arm pulley traction are the main clinical positions chosen for shoulder arthroscopy. Maintaining the beach chair position requires relatively complex fixation devices and techniques; otherwise, patient movement is easily caused, affecting the precision of the surgical procedure. Prolonged use of the beach chair position may lead to position-related complications such as pressure sores and nerve damage, especially during prolonged surgeries, and elevating the upper body may reduce cerebral blood perfusion. Maintaining the lateral decubitus position and arm traction also require relatively complex fixation devices and techniques. Prolonged use of the lateral decubitus position can also lead to position-related complications such as pressure sores and nerve damage, and monitoring the blood and nerve status of the arm is more difficult in the lateral decubitus position. Utility Model Content

[0004] This invention provides a C-shaped arm fixation device that can solve the problems of complications caused by surgical positioning in existing shoulder arthroscopic surgery and the inability to expose different positions of the shoulder joint.

[0005] According to the present invention, a C-shaped arm fixing device includes: a robotic arm body, the robotic arm body including a main arm assembly and an auxiliary arm assembly disposed on one side of the top of the main arm assembly; the main arm assembly is hinged at both ends with a telescopic drive mechanism for driving the main arm assembly to extend and retract; the auxiliary arm assembly includes a connecting arm fixedly connected to the top of the telescopic arm and an arm fixing mechanism for placing the arm; the upper part of the connecting arm is hinged with a movement drive mechanism for driving the auxiliary arm assembly to move up and down.

[0006] The C-shaped arm fixing device in this invention achieves multi-dimensional fixation of the arm through the coordinated work of the main arm assembly and the auxiliary arm assembly, thereby improving the stability and flexibility of the fixation.

[0007] The telescopic drive mechanism in this invention allows for convenient adjustment of the length of the main arm assembly, adapting to different patient body types and surgical needs.

[0008] The auxiliary arm assembly can move up and down through the mobile drive mechanism in this invention, so that the height and angle of the arm can be adjusted, thereby exposing different positions of the shoulder joint. In this invention, the main arm assembly includes a first main arm, a second main arm and a third main arm arranged sequentially from bottom to top. One end of the second main arm is slidably sleeved inside the first main arm, one end of the third main arm is slidably sleeved inside the second main arm, and the other end of the third main arm is fixedly connected to the connecting arm.

[0009] Through the multi-stage sleeve design of the first main arm, the second main arm, and the third main arm in this utility model, the continuous extension and retraction of the main arm assembly is realized, which can maintain good stability and avoid swaying or instability caused by extension and retraction, thus adapting to the needs of more patients with different body types and surgical procedures.

[0010] In this utility model, the telescopic drive mechanism includes a first electric push rod and a second electric push rod. The first push rod is equipped with a first motor that cooperates with the first electric push rod to drive the extension and retraction of the second main arm, and the second electric push rod is equipped with a second motor that cooperates with the second electric push rod to drive the extension and retraction of the third main arm.

[0011] By employing an electric push rod and a motor in combination for driving, the length and angle of the main arm assembly can be adjusted more precisely and stably during surgery, thereby improving the safety and efficiency of the operation.

[0012] In this utility model, the end of the first electric push rod away from the third main arm is hinged to the bottom side of the first main arm, and the end of the second electric push rod near the connecting arm is hinged to the connecting arm. The telescopic drive mechanism also includes two fixing plates for fixing the first electric push rod and the second electric push rod. The first motor and the second motor are respectively fixed on the side of the fixing plate away from the main arm assembly, and the fixing plate is hinged to the second main arm.

[0013] The design of the fixing plate in this invention enhances the stability of the electric push rod and motor, preventing loosening or detachment caused by vibration or external force.

[0014] In this utility model, the connecting arm includes a main frame and a sub-frame. The main frame is sleeved on the end of the third main arm away from the second main arm, and the sub-frame is fixed on the upper end of the main frame. The end of the second electric push rod away from the first electric push rod is fixedly connected to the sub-frame.

[0015] The graded support design of the main frame and the sub-frame in this utility model enhances the load-bearing capacity and stability of the connecting arm. The clear division of labor between the main frame and the sub-frame ensures the safe use of the device during surgery.

[0016] In this invention, the moving drive mechanism includes a third electric push rod and a mechanism mounted on the third electric push rod.

[0017] The third motor of the unit is used to drive the arm fixing mechanism to move up and down in conjunction with the third electric push rod. One end of the third electric push rod is hinged to the sub-frame.

[0018] By using the third electric push rod and the third motor in this invention to drive the arm fixation mechanism, it is possible to move the arm up and down quickly and smoothly, which makes it easy to observe the blood circulation in the extremities, and the fixation is firm, accurate in position and angle.

[0019] In this utility model, the mobile drive mechanism further includes a first connecting rod, a second connecting rod, and a transition plate. One end of the first connecting rod is hinged to the main frame, and the other end of the first connecting rod is hinged to the end of the third electric push rod away from the sub-frame. One end of the second connecting rod is hinged to the end of the third electric push rod away from the sub-frame, and the other end of the second connecting rod is hinged to the middle of the transition plate. One end of the transition plate is hinged to the end of the main frame away from the sub-frame, and the other end of the transition plate is provided with a hook.

[0020] Through the linkage transmission method of the first link, the second link, and the adapter plate in this utility model, a stable drive for the arm fixing mechanism is achieved. Under the extension and retraction of the third electric push rod, the first link and the second link drive the adapter plate to move the arm fixing mechanism up or down, with precise control and accurate angle.

[0021] In this utility model, a connecting rod is provided on the side of the main frame away from the third electric push rod. The arm fixing mechanism includes a first constraint band connected to the connecting rod. An arm fixing sleeve is fixedly connected to the end of the first constraint band away from the connecting rod. A second constraint band is fixed to both sides of the upper part of the arm fixing sleeve. The end of the second constraint band away from the arm fixing sleeve is connected to the hook.

[0022] This invention achieves comprehensive fixation of the arm through multiple restraint methods, including a first restraint strap, an arm fixation sleeve, and a second restraint strap. The arm fixation sleeve allows the patient's arm to be fully placed inside the sleeve, and the second restraint strap is activated by hooks on the adapter plate to adjust the angle of the patient's arm, effectively exposing the surgical field of vision.

[0023] In this utility model, the main body of the robotic arm also includes a robotic arm support seat located at the end of the first main arm away from the third main arm, and the robotic arm support seat is provided with mounting holes for bolt connection with the healthy side of the operating table.

[0024] The robotic arm support base in this invention can be fixed to the healthy side of the operating table, facilitating the application of the device during surgery.

[0025] In this utility model, a voice control box is also provided at the support base of the robotic arm.

[0026] The voice system in the voice control box of this invention allows for the command to adjust the height of the main arm assembly.

[0027] The angle of the arm fixation mechanism is adjusted to expose different positions of the shoulder joint.

[0028] This invention can adjust the height and angle of the patient's arm, so that different surgical sites are exposed in the surgical field of vision and are firmly fixed, providing safety for the patient during the operation. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a C-arm fixation device.

[0030] Figure 2 Right view of the C-arm fixing device.

[0031] Figure 3 This is a schematic diagram of the arm fixing mechanism and the connecting arm.

[0032] Figure 4 This is a schematic diagram of the first link.

[0033] Figure 5 This is a schematic diagram of the second link.

[0034] Figure 6 This is a schematic diagram of the adapter board. Detailed Implementation

[0035] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0036] Example 1

[0037] like Figure 1-6 As shown, this embodiment provides a C-shaped arm fixing device, which includes: a robotic arm body 100, the robotic arm body 100 including a main arm assembly 200 and an auxiliary arm assembly 300 disposed on one side of the top of the main arm assembly 200; the main arm assembly 200 is hinged at both ends with a telescopic drive mechanism 210 for driving the main arm assembly 200 to extend and retract; the auxiliary arm assembly 300 includes a connecting arm 310 fixedly connected to the top of the telescopic arm and an arm fixing mechanism 320 for placing the arm; the upper part of the connecting arm 310 is hinged with a movement drive mechanism 330 for driving the auxiliary arm assembly 300 to move up and down.

[0038] In this embodiment, the C-arm fixing device achieves multi-dimensional fixation of the arm through the coordinated work of the main arm assembly 200 and the auxiliary arm assembly 300, thereby improving the stability and flexibility of the fixation.

[0039] The telescopic drive mechanism 210 in this embodiment allows for easy adjustment of the length of the main arm assembly 200 to accommodate different patient body types and surgical needs.

[0040] The mobile drive mechanism 330 in this embodiment enables the auxiliary arm assembly 300 to move up and down, allowing the height and angle of the arm to be adjusted, thereby exposing different positions of the shoulder joint.

[0041] In this embodiment, the main arm assembly 200 includes a first main arm 220, a second main arm 230 and a third main arm 240 arranged sequentially from bottom to top. One end of the second main arm 230 is slidably sleeved inside the first main arm 220, and one end of the third main arm 240 is slidably sleeved inside the second main arm 230. The other end of the third main arm 240 is fixedly connected to the connecting arm 310.

[0042] Through the multi-stage socket design of the first main arm 220, the second main arm 230 and the third main arm 240 in this embodiment, the continuous extension and retraction of the main arm assembly 200 is realized, which can maintain good stability and avoid swaying or instability caused by extension and retraction, thus adapting to the needs of more patients with different body types and surgical procedures.

[0043] In this embodiment, the telescopic drive mechanism 210 includes a first electric push rod 211 and a second electric push rod 212. The first push rod is provided with a first motor 213 that cooperates with the first electric push rod 211 to drive the extension and retraction of the second main arm 230. The second electric push rod 212 is provided with a second motor 214 that cooperates with the second electric push rod 212 to drive the extension and retraction of the third main arm 240.

[0044] By employing an electric push rod and a motor in this embodiment, the length and angle of the main arm assembly 200 can be adjusted more precisely and stably during surgery, improving the safety and efficiency of the operation.

[0045] In this embodiment, the end of the first electric push rod 211 away from the third main arm 240 is hinged to the bottom side of the first main arm 220, and the end of the second electric push rod 212 near the connecting arm 310 is hinged to the connecting arm 310. The telescopic drive mechanism 210 also includes two fixing plates 215 for fixing the first electric push rod 211 and the second electric push rod 212. The first motor 213 and the second motor 214 are respectively fixed on the side of the fixing plate 215 away from the main arm assembly 200, and the fixing plate 215 is hinged to the second main arm 230.

[0046] The design of the fixing plate 215 in this embodiment enhances the stability of the electric push rod and motor, preventing loosening or detachment due to vibration or external force.

[0047] In this embodiment, the connecting arm 310 includes a main frame 311 and a sub-frame. The main frame 311 is sleeved on the end of the third main arm 240 away from the second main arm 230. The sub-frame is fixed on the upper end of the main frame 311. The end of the second electric push rod 212 away from the first electric push rod 211 is fixedly connected to the sub-frame.

[0048] The graded support design of the main frame 311 and the sub-frame in this embodiment enhances the load-bearing capacity and stability of the connecting arm 310. The main frame 311 and the sub-frame have a clear division of labor, ensuring the safe use of the device during the operation.

[0049] In this embodiment, the moving drive mechanism 330 includes a third electric push rod 331 and a third motor 332 disposed on the upper part of the third electric push rod 331. The third motor 332 is used to cooperate with the third electric push rod 331 to drive the arm fixing mechanism 320 to move up and down. One end of the third electric push rod 331 is hinged to the sub-frame.

[0050] In this embodiment, the arm fixation mechanism 320 is driven by the third electric push rod 331 and the third motor 332 in a coordinated manner, which enables the rapid and stable up and down movement of the arm fixation mechanism 320. This facilitates the observation of peripheral blood circulation in the extremities, and ensures that the fixation is firm, accurate in position and angle.

[0051] In this embodiment, the moving drive mechanism 330 further includes a first connecting rod 333, a second connecting rod 334, and a transition plate 335. One end of the first connecting rod 333 is hinged to the main frame 311, and the other end of the first connecting rod 333 is hinged to the end of the third electric push rod 331 away from the sub-frame. One end of the second connecting rod 334 is hinged to the end of the third electric push rod 331 away from the sub-frame, and the other end of the second connecting rod 334 is hinged to the middle of the transition plate 335. One end of the transition plate 335 is hinged to the end of the main frame 311 away from the sub-frame, and the other end of the transition plate 335 is provided with a hook 336.

[0052] Through the linkage transmission method of the first link 333, the second link 334 and the adapter plate 335 in this embodiment, the stable drive of the arm fixing mechanism 320 is realized. Under the extension and retraction of the third electric push rod 331, the first link 333 and the second link 334 drive the adapter plate 335 to move the arm fixing mechanism 320 up or down, with precise control and accurate angle.

[0053] In this embodiment, a connecting rod 312 is provided on the side of the main frame 311 away from the third electric push rod 331. The arm fixing mechanism 320 includes a first constraint band 321 connected to the connecting rod 312. An arm fixing sleeve 322 is fixedly connected to one end of the first constraint band 321 away from the connecting rod 312. A second constraint band 323 is fixed to both sides of the upper part of the arm fixing sleeve 322. One end of the second constraint band 323 away from the arm fixing sleeve 322 is connected to the hook 336.

[0054] In this embodiment, the arm is fully fixed by multiple restraint methods, including the first restraint strap 321, the arm fixation sleeve 322, and the second restraint strap 323. The arm fixation sleeve 322 allows the patient's arm to be fully placed inside the sleeve. The hook 336 on the adapter plate 335 drives the second restraint strap 323 to adjust the angle of the patient's arm, effectively exposing the surgical field of vision.

[0055] In this embodiment, the robotic arm body 100 also includes a robotic arm support 110 disposed at the end of the first main arm 220 away from the third main arm 240, and the robotic arm support 110 is bolted to the healthy side of the operating table.

[0056] Mounting hole 111.

[0057] In this embodiment, the robotic arm support 110 can be fixed to the healthy side of the operating table, facilitating the application of the device during surgery.

[0058] In this embodiment, a voice control box 120 is also provided at the robotic arm support base 110. Through the voice system in the voice control box 120, commands are used to adjust the height of the main arm assembly 200 and the angle of the arm fixing mechanism 320, thereby achieving different positions of shoulder joint exposure.

[0059] In this embodiment, the robotic arm support base 110 is fixed to the healthy side of the operating table with bolts. Before surgery, the patient places their arm in the arm fixation sleeve 322 to ensure the arm is in a natural and comfortable state. The telescopic drive mechanism 210 is activated via the voice control box 120. The first electric push rod 211 and the second electric push rod 212 drive the second main arm 230 and the third main arm 240 to extend and retract, adjusting to a suitable length according to the patient's body size and surgical needs. The movement drive mechanism 330 is activated, and the third electric push rod 331 and the third motor 332 work together to drive the arm fixation mechanism 320 to move up and down, adjusting to the optimal fixation height according to the required surgical position. During surgery, the device is fine-tuned via the voice control box 120 to ensure the surgical field of vision and operating space. After surgery, the second restraint strap 323 is loosened first, then the first restraint strap 321 is loosened, and the patient's arm is removed from the arm fixation sleeve 322.

[0060] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0061] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A C-shaped arm fixing device, characterized in that: The system includes a robotic arm body (100), which includes a main arm assembly (200) and an auxiliary arm assembly (300) disposed on one side of the top of the main arm assembly (200). The main arm assembly (200) is hinged at both ends with a telescopic drive mechanism (210) for driving the main arm assembly (200) to extend and retract. The auxiliary arm assembly (300) includes a connecting arm (310) fixedly connected to the top of the main arm assembly (200) and an arm fixing mechanism (320) for placing the arm. The upper part of the connecting arm (310) is hinged with a moving drive mechanism (330) for driving the auxiliary arm assembly (300) to move up and down.

2. The C-shaped arm fixing device according to claim 1, characterized in that: The main arm assembly (200) includes a first main arm (220), a second main arm (230) and a third main arm (240) arranged sequentially from bottom to top. One end of the second main arm (230) is slidably fitted inside the first main arm (220), and one end of the third main arm (240) is slidably fitted inside the second main arm (230). The other end of the third main arm (240) is fixedly connected to the connecting arm (310).

3. A C-shaped arm fixing device according to claim 2, characterized in that: The telescopic drive mechanism (210) includes a first electric push rod (211) and a second electric push rod (212). The first electric push rod (211) is equipped with a first motor (213) that cooperates with the first electric push rod (211) to drive the extension and retraction of the second main arm (230). The second electric push rod (212) is equipped with a second motor (214) that cooperates with the second electric push rod (212) to drive the extension and retraction of the third main arm (240).

4. A C-shaped arm fixing device according to claim 3, characterized in that: The end of the first electric push rod (211) away from the third main arm (240) is hinged to the bottom side of the first main arm (220). The end of the second electric push rod (212) near the connecting arm (310) is hinged to the connecting arm (310). The telescopic drive mechanism (210) also includes two fixing plates (215) for fixing the first electric push rod (211) and the second electric push rod (212). The first motor (213) and the second motor (214) are respectively fixed on the side of the fixing plate (215) away from the main arm assembly (200). The fixing plate (215) is hinged to the second main arm (230).

5. A C-shaped arm fixing device according to claim 1, characterized in that: The connecting arm (310) includes a main frame (311) and a sub-frame. The main frame (311) is sleeved on the end of the third main arm (240) away from the second main arm (230). The sub-frame is fixed on the upper end of the main frame (311). The end of the second electric push rod (212) away from the first electric push rod (211) is fixedly connected to the sub-frame.

6. A C-shaped arm fixing device according to claim 5, characterized in that: The moving drive mechanism (330) includes a third electric push rod (331) and a third motor (332) disposed on the upper part of the third electric push rod (331). The third motor (332) is used to cooperate with the third electric push rod (331) to drive the arm fixing mechanism (320) to move up and down. One end of the third electric push rod (331) is hinged to the subframe.

7. A C-shaped arm fixing device according to claim 6, characterized in that: The moving drive mechanism (330) also includes a first link (333), a second link (334), and a transition plate (335). One end of the first link (333) is hinged to the main frame (311), and the other end of the first link (333) is hinged to the end of the third electric push rod (331) away from the sub-frame. One end of the second link (334) is hinged to the end of the third electric push rod (331) away from the sub-frame, and the other end of the second link (334) is hinged to the middle of the transition plate (335). One end of the transition plate (335) is hinged to the end of the main frame (311) away from the sub-frame, and the other end of the transition plate (335) is provided with a hook (336).

8. A C-arm fixing device according to claim 1 or 7, characterized in that: A connecting rod (312) is provided on the side of the main frame (311) away from the third electric push rod (331). The arm fixing mechanism (320) includes a first constraint band (321) connected to the connecting rod (312). An arm fixing sleeve (322) is fixedly connected to one end of the first constraint band (321) away from the connecting rod (312). A second constraint band (323) is fixed on both sides of the upper part of the arm fixing sleeve (322). One end of the second constraint band (323) away from the arm fixing sleeve (322) is connected to the hook (336).

9. A C-shaped arm fixing device according to claim 1, characterized in that: The main body of the robotic arm (100) also includes a robotic arm support (110) located at the end of the first main arm (220) away from the third main arm (240), and the robotic arm support (110) is provided with a mounting hole (111) for bolt connection with the healthy side of the operating table.

10. A C-shaped arm fixing device according to claim 9, characterized in that: A voice control box (120) is also provided at the robotic arm support base (110).

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