An arthroscopic assisted drilling decompression positioning device for femoral head necrosis

Abstract

The utility model discloses a kind of arthroscopic auxiliary femoral head necrosis drilling decompression positioning device, it is related to medical instrument technical field, including handle main body, the inside of handle main body is provided with positioning unit, the side of positioning unit is provided with drilling unit, the drilling unit includes fixed frame and adjusting assembly, the fixed frame is arranged in the side of positioning unit, the adjusting assembly is arranged in the inside of fixed frame, the adjusting assembly includes limit sleeve, the inside sliding connection of limit sleeve has pressing rod, one end of the pressing rod is fixedly connected with moving frame, the both sides sliding connection in the inside of limit sleeve of moving frame, the side fixedly connected with fixed rod of moving frame.The utility model is provided by limit sleeve, pressing rod, moving frame, fixed rod and spring, so that it is in the process of drilling, the effect of facilitating multiple channel drilling work is achieved, and the effect of further improving treatment is achieved by corresponding one drilling position for each channel.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis. Background Technology

[0002] The main pathological cause of femoral head necrosis is obstructed blood supply to the femoral head, leading to bone ischemia and damage. It is often referred to as ischemic necrosis of the femoral head or aseptic necrosis of the femoral head. If early-stage femoral head necrosis is not treated promptly and effectively, it can cause the femoral head to collapse, the joint space to narrow, and eventually lead to osteoarthritis, resulting in hip joint dysfunction, disability, or paralysis.

[0003] Currently, the main treatment for avascular necrosis of the femoral head involves drilling blind holes in the femoral head to locate the approximate location of the lesion and suction out the necrotic part. However, during the drilling process, it is not possible to perform multi-hole adjustment drilling after the localization is completed. Therefore, an arthroscopic-assisted drilling decompression and localization device for avascular necrosis of the femoral head is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide an arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis includes a handle body, a positioning unit is provided inside the handle body, and a drilling unit is provided on one side of the positioning unit.

[0007] The drilling unit includes a fixing frame and an adjustment component. The fixing frame is located on one side of the positioning unit, and the adjustment component is located inside the fixing frame.

[0008] The adjusting assembly includes a limiting sleeve, a pressing rod slidably connected inside the limiting sleeve, a movable frame fixedly connected to one end of the pressing rod, both sides of the movable frame slidably connected inside the limiting sleeve, a fixing rod fixedly connected to one side of the movable frame, a spring fixedly connected to one side of the movable frame, and one end of the spring fixedly connected to the bottom surface inside the limiting sleeve.

[0009] A further improvement of the present invention is that the handle body includes a positioning groove, the positioning groove is formed inside the handle body, and an arc-shaped groove is provided on one side of the handle body.

[0010] By adopting the above technical solution, the positioning groove facilitates the positioning and limiting of the C-shaped block during installation.

[0011] A further improvement of this utility model is that: a knob is provided on one side of the handle body, and a threaded rod is fixedly connected to one side of the knob, with the surface of the threaded rod rotatably connected to the inside of the handle body.

[0012] By adopting the above technical solution, the use of knobs and threaded rods facilitates the installation and fixation of the C-block.

[0013] A further improvement of the present invention is that the positioning unit includes a C-shaped block, the C-shaped block is disposed inside the positioning groove, one side of the C-shaped block is threadedly connected to the surface of the threaded rod, and a positioning tooth is fixedly connected to one side of the C-shaped block.

[0014] By adopting the above technical solution, the C-shaped block and positioning teeth facilitate positioning during use.

[0015] A further improvement of this utility model is that a connecting block is fixedly connected to one side of the C-shaped block, and a guide channel is evenly provided on the top surface of the connecting block.

[0016] By adopting the above technical solution, the connection block and guide channel are set up to achieve the effect of auxiliary positioning and guidance during the drilling process.

[0017] A further improvement of this utility model is that: the inside of the fixing frame is uniformly provided with adjustment holes, the inside of the adjustment holes is slidably connected to the surface of the fixing rod, the inside of the fixing frame is provided with an installation block, and the inside of the installation block is fixedly connected to the surface of the limiting sleeve.

[0018] By adopting the above technical solution, the setting of the fixing frame, adjusting hole, mounting block and mounting groove achieves the effect of facilitating the installation and movement of the sleeve.

[0019] A further improvement of the present invention is that: the mounting block has an installation groove inside, a sleeve is slidably connected inside the installation groove, and a drilling channel is provided inside the sleeve.

[0020] By adopting the above technical solution, the setting of the sleeve and the drilling channel achieves the effect of facilitating auxiliary guidance for drilling.

[0021] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0022] 1. This utility model provides an arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis. Through the setting of a limiting sleeve, a pressing rod, a moving frame, a fixing rod and a spring, it facilitates the drilling of multiple channels during the drilling process. At the same time, each channel corresponds to a drilling position, further improving the treatment effect. The setting of the positioning groove facilitates the positioning and limiting of the C-shaped block installation.

[0023] 2. This utility model provides an arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis. By setting up a connecting block and a guide channel, it achieves the effect of auxiliary positioning and guidance during the drilling process. By setting up a fixing frame, adjusting hole, mounting block and mounting groove, it achieves the effect of facilitating the installation and movement of the sleeve and limiting its movement. By setting up a sleeve and a drilling channel, it achieves the effect of facilitating auxiliary guidance for drilling. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the handle body of this utility model;

[0026] Figure 3 This is a schematic diagram of the positioning unit of this utility model;

[0027] Figure 4 This is a schematic diagram of the drilling unit of this utility model;

[0028] Figure 5 This is a cross-sectional structural diagram of the adjustment component of this utility model.

[0029] In the diagram: 1. Handle body; 11. Positioning groove; 12. Arc groove; 13. Knob; 14. Threaded rod; 2. Positioning unit; 21. C-block; 22. Positioning tooth; 23. Connecting block; 24. Guide channel; 3. Drilling unit; 31. Fixing frame; 32. Adjustment hole; 33. Adjustment component; 331. Limiting sleeve; 332. Pressing rod; 333. Moving frame; 334. Fixing rod; 335. Spring; 34. Mounting block; 35. Mounting groove; 36. Sleeve; 37. Drilling channel. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to embodiments:

[0031] Example 1

[0032] like Figure 1-5As shown, this utility model provides an arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis, including a handle body 1. A positioning unit 2 is disposed inside the handle body 1. A drilling unit 3 is disposed on one side of the positioning unit 2. The drilling unit 3 includes a fixing frame 31 and an adjusting component 33. The fixing frame 31 is disposed on one side of the positioning unit 2, and the adjusting component 33 is disposed inside the fixing frame 31. The adjusting component 33 includes a limiting sleeve 331. A pressing rod 332 is slidably connected inside the limiting sleeve 331. One end of the pressing rod 332 is fixedly connected to a moving frame 333. The two sides of the moving frame 333 are slidably connected inside the limiting sleeve 331. A fixed rod 334 is fixedly connected to one side of the movable frame 333, and a spring 335 is fixedly connected to one side of the movable frame 333. One end of the spring 335 is fixedly connected to the inner bottom surface of the limiting sleeve 331. When it is necessary to adjust the drilling position, pressing the pressing rod 332 inside the limiting sleeve 331 will cause the spring 335 to be compressed. At the same time, the fixed rod 334 on one side of the movable frame 333 will slide out from the inside of the adjustment hole 32. Then, the mounting block 34 will be rotated to adjust the drilling position. At the same time, the fixed rod 334 will be placed inside the adjustment hole 32. The spring 335 will be used to fix the adjusted position, and then drilling can be carried out again.

[0033] Example 2

[0034] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the handle body 1 includes a positioning groove 11, which is opened inside the handle body 1. An arc-shaped groove 12 is provided on one side of the handle body 1, and a knob 13 is provided on one side of the handle body 1. A threaded rod 14 is fixedly connected to one side of the knob 13. The surface of the threaded rod 14 is rotatably connected to the inside of the handle body 1. The positioning unit 2 includes a C-shaped block 21, which is set inside the positioning groove 11. One side of the C-shaped block 21 is threadedly connected to the surface of the threaded rod 14. A positioning tooth 22 is fixedly connected to one side of the C-shaped block 21, and a connecting block 23 is fixedly connected to one side of the C-shaped block 21. A guide channel 24 is evenly opened on the top surface of the connecting block 23. By placing the C-shaped block 21 inside the positioning groove 11, the threaded rod 14 is rotated to the inside of the C-shaped block 21 by the knob 13. At the same time, the doctor places his finger on one side of the arc-shaped groove 12 and places the C-shaped block 21 inside the patient's body, and then the positioning tooth 22 contacts the bone.

[0035] Example 3

[0036] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the interior of the fixing frame 31 is uniformly provided with adjustment holes 32, the interior of the adjustment holes 32 is slidably connected to the surface of the fixing rod 334, the interior of the fixing frame 31 is provided with an installation block 34, the interior of the installation block 34 is fixedly connected to the surface of the limiting sleeve 331, the interior of the installation block 34 is provided with an installation groove 35, the interior of the installation groove 35 is slidably connected with a sleeve 36, the interior of the sleeve 36 is provided with a drilling channel 37, the sleeve 36 is placed inside the installation groove 35, and then the sleeve 36 is limited by the installation block 34, and at the same time the sleeve 36 is inserted into one side of the patient's bone and fixed, and at the same time the drill bit for drilling is placed inside the drilling channel 37 and slid, and then the drilling work is performed on the patient's bone through the drilling channel 37.

[0037] The working principle of this arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis will be explained in detail below.

[0038] like Figure 1-5 As shown, by placing the C-shaped block 21 inside the positioning groove 11, the threaded rod 14 is rotated into the C-shaped block 21 by the knob 13. Simultaneously, the doctor places their finger on one side of the arc-shaped groove 12, and the C-shaped block 21 is placed inside the patient's body. The positioning teeth 22 then contact the bone. The sleeve 36 is placed inside the mounting groove 35, and the mounting block 34 limits the sleeve 36. The sleeve 36 is then inserted into one side of the patient's bone and fixed. At the same time, the drill bit is placed inside the drilling channel 37. The device slides through the drilling channel 37 to drill into the patient's bone. When the drilling position needs to be adjusted, pressing the pressing rod 332 compresses the spring 335 inside the limiting sleeve 331, causing the fixing rod 334 on one side of the moving frame 333 to slide out from the adjustment hole 32. Then, the mounting block 34 is rotated to adjust the drilling position, and the fixing rod 334 is placed inside the adjustment hole 32. The spring 335 completes the adjustment and fixation, allowing for drilling again.

[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis, comprising a handle body (1), characterized in that: The handle body (1) is provided with a positioning unit (2) inside, and a drilling unit (3) is provided on one side of the positioning unit (2); The drilling unit (3) includes a fixing frame (31) and an adjustment component (33). The fixing frame (31) is located on one side of the positioning unit (2), and the adjustment component (33) is located inside the fixing frame (31). The adjustment component (33) includes a limiting sleeve (331), a pressing rod (332) is slidably connected inside the limiting sleeve (331), a movable frame (333) is fixedly connected to one end of the pressing rod (332), both sides of the movable frame (333) are slidably connected inside the limiting sleeve (331), a fixing rod (334) is fixedly connected to one side of the movable frame (333), a spring (335) is fixedly connected to one side of the movable frame (333), and one end of the spring (335) is fixedly connected to the bottom surface inside the limiting sleeve (331).

2. The arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis according to claim 1, characterized in that: The handle body (1) includes a positioning groove (11) which is opened inside the handle body (1), and an arc-shaped groove (12) is provided on one side of the handle body (1).

3. The arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis according to claim 2, characterized in that: A knob (13) is provided on one side of the handle body (1), and a threaded rod (14) is fixedly connected to one side of the knob (13). The surface of the threaded rod (14) is rotatably connected to the inside of the handle body (1).

4. The arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis according to claim 1, characterized in that: The positioning unit (2) includes a C-shaped block (21), which is disposed inside the positioning groove (11). One side of the C-shaped block (21) is threadedly connected to the surface of the threaded rod (14), and a positioning tooth (22) is fixedly connected to one side of the C-shaped block (21).

5. The arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis according to claim 4, characterized in that: A connecting block (23) is fixedly connected to one side of the C-shaped block (21), and a guide channel (24) is evenly opened on the top surface of the connecting block (23).

6. The arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis according to claim 1, characterized in that: The fixing frame (31) has evenly spaced adjustment holes (32) inside. The inside of the adjustment holes (32) is slidably connected to the surface of the fixing rod (334). The fixing frame (31) has an installation block (34) inside. The inside of the installation block (34) is fixedly connected to the surface of the limiting sleeve (331).

7. The arthroscopic-assisted drilling decompression and positioning device for femoral head necrosis according to claim 6, characterized in that: The mounting block (34) has an installation groove (35) inside, and a sleeve (36) is slidably connected inside the mounting groove (35). The sleeve (36) has a drilling channel (37) inside.

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