A wrist arthroscopic assisted positioning device

Abstract

A wrist arthroscopy-assisted positioning device, belonging to the field of medical assistive device technology, includes a support rod. The lower end of the support rod is equipped with a clamping mechanism for connection to an operating table. An arm pressure plate and a hanger are adjustablely mounted on the outer surface of the support rod. An elastic finger sleeve is fixedly installed inside the hanger, and a U-shaped carrier rod is slidably mounted on the lower surface of the hanger. A carrier plate is slidably mounted inside the U-shaped carrier rod. A window is perforated on the outer surface of the carrier plate, and a positioning ring is rotatably mounted inside the window. In use, this device allows adjustment of the puncture positioning direction by adjusting the position of the U-shaped carrier rod below the hanger, and the puncture positioning height can be changed by adjusting the height of the carrier plate. During puncture, tilting the puncture needle causes the positioning ring to rotate, thus adjusting the puncture angle. The device is highly versatile and greatly facilitates the support and positioning of the wrist arthroscopy puncture needle during surgery.

Description

Technical Field

[0001] This utility model belongs to the field of medical assistive device technology, specifically relating to a wrist arthroscopy auxiliary positioning device. Background Technology

[0002] An arthroscopy is an endoscope, a rod-shaped optical instrument about 5mm in diameter, used for the diagnosis and treatment of joint diseases, and to observe the internal structures of the joint. In the actual operation of arthroscopy, when it is inserted into the joint, a specific support device is needed to replace manual support, thereby reducing the workload of the operator.

[0003] A search revealed an authorized patent in the relevant technical field, with publication number CN216124583U and patent title "An Auxiliary Support Device for Arthroscopy". This device, through the cooperation of a support base and an arc-shaped support rod, can adaptively adjust the height of the wrist arthroscopy support, thus meeting some operational needs to a certain extent.

[0004] However, in actual clinical practice, given the differences in individual patient physiological characteristics and the complexity of their conditions, wrist arthroscopy often requires adjustments at various angles from multiple positions of the wrist joint, such as the ulnar, radial, palmar, or dorsal sides, to precisely insert the puncture into the patient's skin, based on the patient's specific condition. This places extremely high demands on the flexibility and precision of the wrist arthroscopy support device.

[0005] Given that the existing arthroscopic auxiliary support devices cannot effectively solve the problems of orientation and angle adjustment in practical applications, resulting in poor applicability, a wrist arthroscopic auxiliary positioning device is proposed to meet the needs of precise multi-angle and multi-position adjustment of the wrist arthroscopy in clinical operations. Utility Model Content

[0006] To address the shortcomings of existing arthroscopic auxiliary support devices, such as inconvenience in adjusting support position and angle, and poor applicability, this invention provides a wrist arthroscopic auxiliary positioning device. This device features a vertical rod with a clamping mechanism, upon which an arm pressure plate and a hanger with locking bolts are mounted. The arm pressure plate secures the patient's arm, while an elastic finger sleeve within the hanger secures the patient's fingers. A U-shaped support rod with a carrier plate slides below the support rod, and a positioning ring rotates within the carrier plate. The wrist arthroscopic puncture needle passes through the positioning ring for support. During use, the puncture positioning direction can be adjusted by changing the position of the U-shaped support rod below the hanger, and the puncture positioning height can be changed by adjusting the height of the carrier plate. Tilting the puncture needle during puncture causes the positioning ring to rotate, allowing for adjustment of the puncture angle. This device offers strong overall applicability and greatly facilitates intraoperative support and positioning of the wrist arthroscopic puncture needle, overcoming the drawbacks of existing arthroscopic auxiliary support devices, such as inconvenient adjustment of support position and angle, and poor applicability. The specific technical solution is as follows:

[0007] A wrist arthroscopy-assisted positioning device includes a support rod, the lower end of which is equipped with a clamping mechanism for connection to an operating table. An arm pressure plate and a hanger are adjustablely mounted on the outer surface of the support rod. An elastic finger sleeve is fixedly mounted inside the hanger, and a U-shaped carrier rod is slidably mounted on the lower surface of the hanger. A carrier plate is slidably mounted inside the U-shaped carrier rod. A window is opened through the outer surface of the carrier plate, and a positioning ring is rotatably mounted inside the window.

[0008] In the above technical solution, the hanger includes a lifting ring, an L-shaped connecting rod is fixedly installed on the left surface of the lifting ring, the end of the L-shaped connecting rod away from the lifting ring is sleeved on the outer surface of the upright, a clamping bolt is screwed onto the outer surface of the L-shaped connecting rod, a T-shaped slide is provided on the lower surface of the lifting ring, two sliders are fixedly installed at the top of the U-shaped support rod, the sliders are slidably installed in the T-shaped slide, two threaded rods are provided at the upper end of the U-shaped support rod, the threaded rods are fixedly connected to the corresponding sliders, and a clamping nut is screwed onto the outer surface of each threaded rod, the upper surface of the clamping nut is in contact with the lower surface of the lifting ring.

[0009] In the above technical solution, a T-shaped hollow component is inserted and installed inside the positioning ring, and the T-shaped hollow component is a disposable polypropylene product.

[0010] In the above technical solution, the front surface of the positioning ring is provided with multiple slots, and multiple locking blocks are fixedly installed on the side of the T-shaped hollow part near the positioning ring. The locking blocks are inserted into the corresponding slots.

[0011] In the above technical solution, an installation port is provided between the T-shaped slide and the inner wall of the lifting ring, a sealing block is inserted into the installation port, and a screw is screwed between the sealing block and the lifting ring.

[0012] In the above technical solution, the lower surface of the arm pressure plate is arc-shaped, the left end of the arm pressure plate is sleeved on the outer surface of the upright, and the left and right surfaces of the carrier plate and the left surface of the arm pressure plate are screwed with tightening bolts.

[0013] In the above technical solution, the clamping mechanism includes a base plate and a movable plate. The base plate is fixedly installed on the lower surface of the upright, and the movable plate is sleeved on the outer surface of the upright. An I-shaped rotating block is rotatably installed at the front end of the base plate, and an adjusting bolt is fixedly installed on the upper surface of the I-shaped rotating block. The adjusting bolt is threadedly connected to the front end of the movable plate.

[0014] The advantages of this wrist arthroscopy-assisted positioning device compared with the prior art are as follows:

[0015] This invention features a vertical pole with a clamping mechanism, upon which an arm pressure plate and a hanger with locking bolts are mounted. The arm pressure plate secures the patient's arm, while an elastic finger sling is installed within the hanger to fix the patient's fingers. A U-shaped support rod with a carrier plate is slidably mounted below the support rod, and a positioning ring is rotatably mounted within the carrier plate. The puncture needle for the wrist arthroscopy passes through the positioning ring for support. During use, the puncture positioning direction can be adjusted by changing the position of the U-shaped support rod below the hanger, and the puncture positioning height can be changed by adjusting the height of the carrier plate. Tilting the puncture needle during puncture causes the positioning ring to rotate, allowing for adjustment of the puncture angle. The overall design is highly versatile and greatly facilitates the support and positioning of the wrist arthroscopy puncture needle during surgery. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the left-side structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the lifting ring structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the lifting ring of this utility model.

[0020] Figure 5 This is a schematic diagram of the sealing block structure of this utility model.

[0021] Figure 6 This is a cross-sectional structural diagram of the carrier plate of this utility model.

[0022] Figure 7 This is a structural schematic diagram of the T-shaped hollow component of this utility model.

[0023] Figure 8 This is a schematic diagram of the structure of the present invention for supporting the wrist arthroscopic puncture needle.

[0024] Figures 1-8 The components include: 1. Upright pole; 11. Tightening bolt; 2. Clamping mechanism; 21. Base plate; 22. I-shaped rotating block; 23. Adjusting bolt; 24. Movable plate; 3. Arm pressure plate; 4. Hanger; 41. Lifting ring; 411. T-shaped slide rail; 412. Mounting port; 413. Sealing block; 42. L-shaped connecting rod; 5. Elastic lifting finger sleeve; 6. U-shaped carrier rod; 61. Tightening nut; 62. Slider; 7. Carrier plate; 71. Window; 72. Positioning ring; 721. Slot; 8. T-shaped hollow part; 81. Locking block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In this embodiment, front, back, left, right, top, and bottom are... Figure 1 Describe the reference plane. See [link / reference] Figures 1-8 This utility model provides a technical solution:

[0027] A wrist arthroscopy-assisted positioning device includes a support rod 1, a clamping mechanism 2 for connecting to an operating table is installed at the lower end of the support rod 1, an arm pressure plate 3 and a hanger 4 are adjustablely installed on the outer surface of the support rod 1, an elastic finger sleeve 5 is fixedly installed in the hanger 4, and a U-shaped carrier rod 6 is slidably installed on the lower surface of the hanger 4. A carrier plate 7 is slidably installed in the U-shaped carrier rod 6, and a window 71 is opened through the outer surface of the carrier plate 7. A positioning ring 72 is rotatably installed in the window 71.

[0028] The support rod 1 can be fixed to one side of the operating table for use by means of the clamping mechanism 2. When the patient is lying on the operating table, the procedure is as follows: First, the patient's fingers are passed through the elastic finger sling 5 to suspend the patient's hand. Then, the arm depressor 3 is used to press down on the biceps brachii muscle of the patient's arm. This operation fixes the position of the patient's wrist joint, creating convenient conditions for the arthroscopy to perform the puncture with the puncture needle. During the puncture, the height of the carrier plate 7 can be adjusted to meet the required puncture height, and the puncture direction can be adjusted by sliding the position of the U-shaped support rod 6. Furthermore, after the puncture needle of the arthroscopy passes through the positioning ring 72, the positioning ring 72 provides effective support and positioning for the arthroscopy without affecting the adjustment of the puncture angle. Compared with existing technologies, this auxiliary positioning device has stronger overall applicability, greatly facilitating the support and positioning of the wrist arthroscopic puncture needle during surgery, improving the convenience and accuracy of surgical operations, and demonstrating superior performance in meeting the height, direction and angle adjustment of the puncture needle. It helps doctors to complete wrist arthroscopic surgical operations more accurately and provides a more advantageous operating tool for clinical practice.

[0029] It should be noted that the hanger 4 includes a lifting ring 41. An L-shaped connecting rod 42 is fixedly installed on the left surface of the lifting ring 41. The end of the L-shaped connecting rod 42 away from the lifting ring 41 is sleeved on the outer surface of the upright 1. A tightening bolt 11 is screwed onto the outer surface of the L-shaped connecting rod 42. A T-shaped slide rail 411 is opened on the lower surface of the lifting ring 41. Two sliders 62 are fixedly installed at the top of the U-shaped support rod 6. The sliders 62 are slidably installed in the T-shaped slide rail 411. Two threaded rods are provided at the upper end of the U-shaped support rod 6. The threaded rods are fixedly connected to the corresponding sliders 62. A tightening nut 61 is screwed onto the outer surface of the threaded rods. After the tightening nut 61 is tightened, the upper surface of the tightening nut 61 fits against the lower surface of the lifting ring 41, thereby fixing the position of the U-shaped support rod 6.

[0030] When adjusting the positioning direction of the positioning ring 72, the clamping nut 61 can be loosened to disengage it from the lifting ring 41. With the help of the slider 62 and the T-shaped slide rail 411, the U-shaped carrier rod 6 can be rotated circumferentially around the center of the lifting ring 41 to adjust its position, thereby changing the positioning direction of the positioning ring 72.

[0031] Considering that the removal of the puncture needle through the positioning ring 72 could easily lead to bacterial infection and affect subsequent uses, a T-shaped hollow component 8 is inserted and installed inside the positioning ring 72. The T-shaped hollow component 8 is a disposable polypropylene product. In actual operation, the T-shaped hollow component 8 can be used to replace the positioning ring 72 in contact with the wrist joint puncture needle. After use, the T-shaped hollow component 8 is removed from the positioning ring 72 along with the puncture needle. This reduces contamination of the positioning ring 72, thereby lowering the risk of infection and effectively avoiding cross-contamination between the puncture needle and the positioning ring 72. While ensuring operational convenience, it improves the hygiene and safety of the equipment and reduces the possibility of infection in patients due to repeated use of the positioning ring 72.

[0032] To ensure the stability of the T-shaped hollow part 8 after assembly with the positioning ring 72, multiple slots 721 are provided on the front surface of the positioning ring 72. Multiple locking blocks 81 are fixedly installed on the side of the T-shaped hollow part 8 near the positioning ring 72. When the T-shaped hollow part 8 is inserted into the positioning ring 72, the locking blocks 81 are inserted into the corresponding slots 721, which can prevent the T-shaped hollow part 8 from rotating in the positioning ring 72 and improve the stability during use.

[0033] In addition, to facilitate the installation of the U-shaped carrier rod 6, an installation port 412 is provided between the inner wall of the T-shaped slide rail 411 and the lifting ring 41. A sealing block 413 is inserted into the installation port 412, and a screw is screwed between the sealing block 413 and the lifting ring 41. The slider 62 of the U-shaped carrier rod 6 can be inserted into the T-shaped slide rail 411 from the installation port 412. After that, the sealing block 413 can be embedded into the installation port 412 and fixed with screws to close the installation port 412.

[0034] Specifically, the lower surface of the arm pressure plate 3 is arc-shaped, and the left end of the arm pressure plate 3 is sleeved on the outer surface of the upright 1. The left and right surfaces of the carrier plate 7 and the left surface of the arm pressure plate 3 are screwed with clamping bolts 11. The carrier plate 7 and the arm pressure plate 3 are fixed in the corresponding positions by clamping bolts 11. After loosening the clamping bolts 11 in the corresponding positions, the positions can be adjusted up and down to meet the usage requirements.

[0035] Finally, as Figure 1 As shown, the clamping mechanism 2 includes a base plate 21 and a movable plate 24. The base plate 21 is fixedly installed on the lower surface of the upright 1, and the movable plate 24 is sleeved on the outer surface of the upright 1. An I-shaped rotating block 22 is rotatably installed at the front end of the base plate 21, and an adjusting bolt 23 is fixedly installed on the upper surface of the I-shaped rotating block 22. The adjusting bolt 23 is threadedly connected to the front end of the movable plate 24. The movable plate 24 can be adjusted up and down by rotating the adjusting bolt 23, thereby changing the distance between it and the base plate 21. When this positioning device is in use, it can be clamped on the hospital bed by the cooperation of the movable plate 24 and the base plate 21.

Claims

1. A wrist arthroscopy-assisted positioning device, comprising a support rod (1), characterized in that, The lower end of the upright (1) is equipped with a clamping mechanism (2) for connecting to the operating table. An arm pressure plate (3) and a hanger (4) are adjustablely installed on the outer surface of the upright (1). An elastic hanging finger sleeve (5) is fixedly installed inside the hanger (4). A U-shaped carrier rod (6) is slidably installed on the lower surface of the hanger (4). A carrier plate (7) is slidably installed inside the U-shaped carrier rod (6). A window (71) is opened through the outer surface of the carrier plate (7). A positioning ring (72) is rotatably installed inside the window (71).

2. The wrist arthroscopy-assisted positioning device according to claim 1, characterized in that, The hanger (4) includes a lifting ring (41), and an L-shaped connecting rod (42) is fixedly installed on the left surface of the lifting ring (41). The end of the L-shaped connecting rod (42) away from the lifting ring (41) is sleeved on the outer surface of the upright (1), and a tightening bolt (11) is screwed onto the outer surface of the L-shaped connecting rod (42). The lower surface of the lifting ring (41) is provided with a T-shaped slide rail (411). Two sliders (62) are fixedly installed at the top of the U-shaped support rod (6). The sliders (62) are slidably installed in the T-shaped slide rail (411). The upper end of the U-shaped support rod (6) is provided with two threaded rods. The threaded rods are fixedly connected to the corresponding sliders (62), and the outer surface of the threaded rods is screwed with a locking nut (61). The upper surface of the locking nut (61) is in contact with the lower surface of the lifting ring (41).

3. The wrist arthroscopy-assisted positioning device according to claim 1, characterized in that, A T-shaped hollow component (8) is inserted into the positioning ring (72), and the T-shaped hollow component (8) is a disposable polypropylene product.

4. The wrist arthroscopy-assisted positioning device according to claim 3, characterized in that, The front surface of the positioning ring (72) is provided with multiple slots (721), and multiple locking blocks (81) are fixedly installed on the side of the T-shaped hollow part (8) near the positioning ring (72). The locking blocks (81) are inserted into the corresponding slots (721).

5. The wrist arthroscopy-assisted positioning device according to claim 2, characterized in that, An installation port (412) is provided between the inner wall of the T-shaped slide (411) and the lifting ring (41). A sealing block (413) is inserted into the installation port (412), and a screw is screwed between the sealing block (413) and the lifting ring (41).

6. The wrist arthroscopy-assisted positioning device according to claim 1, characterized in that, The lower surface of the arm pressure plate (3) is arc-shaped, and the left end of the arm pressure plate (3) is sleeved on the outer surface of the upright (1). The left and right surfaces of the carrier plate (7) and the left surface of the arm pressure plate (3) are screwed with abutting bolts (11).

7. The wrist arthroscopy-assisted positioning device according to claim 1, characterized in that, The clamping mechanism (2) includes a base plate (21) and a movable plate (24). The base plate (21) is fixedly installed on the lower surface of the upright (1). The movable plate (24) is sleeved on the outer surface of the upright (1). An I-shaped rotating block (22) is rotatably installed at the front end of the base plate (21). An adjusting bolt (23) is fixedly installed on the upper surface of the I-shaped rotating block (22). The adjusting bolt (23) is threadedly connected to the front end of the movable plate (24).

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