Femoral head necrosis treatment device for regional cleaning

Abstract

The invention discloses a regional cleaning femoral head necrosis treatment device, and relates to the field of femoral head necrosis, the regional cleaning femoral head necrosis treatment device is characterized in that a mounting shell is mounted below a moving handle, and first moving inner grooves are formed in the left and right sides of the mounting shell; a meshing sliding mechanism for conducting transmission on the driven hollow rod is installed in the first moving inner groove and comprises a rotating disc. According to the femoral head necrosis treatment device with the regional cleaning function, when extension work of a cutting blade needs to be conducted, a rotating disc is rotated to drive a fixed worm to rotate, and rotation of the worm drives a transmission gear rod to slide downwards along the interior of a first moving inner groove; due to the fact that the driven hollow rod and the transmission gear rod are integrally designed, the driven hollow rod synchronously slides downwards and stops rotating until the driven hollow rod drives the cutting blade to slide to the position suitable for use, and due to the design, the whole device is more convenient to adjust and higher in applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of femoral head necrosis, and specifically provides a femoral head necrosis treatment device for regional cleaning. Background Art

[0002] The main pathology of femoral head necrosis is the obstruction of blood circulation in the femoral head, which is damaged and causes ischemic necrosis of the femoral head bone. It is mostly called ischemic necrosis of the femoral head or aseptic necrosis of the femoral head. If early femoral head necrosis cannot be treated in a timely and effective manner, it will cause disability and paralysis due to hip joint dysfunction in patients.

[0003] However, in the early treatment of femoral head necrosis in the prior art, during the process of using a reverse bone drill to perform drilling decompression + bone grafting on the femoral head necrosis area through arthroscopic surgery, there are problems: due to inaccurate drilling, the cleaning of the femoral head necrosis area is not thorough, the bone grafting is relatively blind, and at the same time, the radiation dose is large.

[0004] In order to overcome the above defects, the prior art (publication number: CN215651385U, a Chinese patent with an application date of March 10, 2021) discloses a femoral head necrosis treatment device, including an arc-shaped locator. The locator includes a handle and a locator body for puncture. The handle and the locator body are integrally formed. One end of the locator body away from the handle extends to form a positioning tip. A conical guide needle is fixedly connected to the handle. A hollow cavity is provided inside the guide needle. The tip of the guide needle is inclined towards the positioning tip, and the axis of the guide needle intersects with the positioning tip. This solution is mainly applied in the treatment process of femoral head necrosis, and solves the problems existing in the prior art during the process of performing drilling decompression + bone grafting on the femoral head necrosis area through arthroscopic surgery in the early treatment of femoral head necrosis: because the cleaning of the femoral head necrosis area is not thorough, the bone grafting is relatively blind, and at the same time, the radiation dose is large.

[0005] Although the prior art can solve the above problems, it is very inconvenient when it comes to the extension work of the blade. For different parts and different doctors' operating habits, the length adjustment design of the existing equipment is too complex and not convenient for corresponding adjustment. Moreover, the corresponding fixed design after adjustment is not simple enough and the practicality is lacking. Summary of the Invention

[0006] The purpose of the present invention is to provide a femoral head necrosis treatment device for regional cleaning, so as to solve the problems mentioned in the above background art that it is very inconvenient when it comes to the extension work of the blade, the length adjustment design of the existing equipment is too complex and not convenient for corresponding adjustment for different parts and different doctors' operating habits, and the corresponding fixed design after adjustment is not simple enough and the practicality is lacking.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a regional cleaning femoral head necrosis treatment device, comprising a mounting shell installed below the movable handle, and a first movable inner groove is opened on the left and right sides of the mounting shell, an engaging sliding mechanism for transmitting a driven hollow rod is installed inside the first movable inner groove, the engaging sliding mechanism comprises a rotating disk, and a worm is installed on the lower surface of the rotating disk, the rotating disk and the worm are designed as an integral unit, and the worm is rotatably installed inside the movable handle, a rotating support frame is installed on the outer surface of the lower end of the worm, and the rotating support frame is fixedly installed on the inner surface of the mounting shell, a transmission gear rod is installed on the left and right sides of the worm, and a driven hollow rod is installed on the lower surface of the transmission gear rod; The outer surface of the mounting shell is mounted with a sliding fixing frame, and the interior of the sliding fixing frame is mounted with an elastic interlocking mechanism for transmitting the transmission support rod.

[0008] Furthermore, the elastic interlocking mechanism includes a resistance frame, and the upper and lower ends of the resistance frame are fixedly installed inside the sliding fixed frame, and a transmission support rod is installed inside the resistance frame, and a reset fixing spring is installed on the outer surface of the transmission support rod, and the reset fixing spring is nested on the outer surface of the transmission support rod.

[0009] Furthermore, the right end of the return fixing spring abuts against the abutment frame, and the abutment frame is of hollow design, the transmission support rod is slidably mounted on the right side of the sliding fixing frame, and a fixed sliding handle is mounted on the outer surface of the transmission support rod.

[0010] Furthermore, the transmission support rod and the fixed sliding handle are of an integral design, and a second movable inner groove is provided on the outer surface of the sliding fixing frame, and the fixed sliding handle slides left and right along the inside of the second movable inner groove. A mosaic support frame is installed at the left end of the transmission support rod, and the opening position of the mosaic support frame corresponds to the moving direction of the transmission support rod, and the mosaic support frame is fixedly installed inside the mosaic support frame.

[0011] Furthermore, the fixed sliding handle and the transmission support rod are of an integrated design, and the fixed sliding handle contacts the left side of the reset fixed spring, and the right side of the reset fixed spring contacts the left side of the contact frame to form an elastic structure, and the outer surface of the transmission support rod contacts the inner surface of the contact frame to form a sliding structure.

[0012] Furthermore, a limiting sliding plate is installed on the back of the transmission gear rod, and a first movable inner groove is opened on the left and right sides of the mounting shell. The limiting sliding plate slides along the inside of the first movable inner groove, and the inner surface of the mounting shell fits with the outer surface of the driven hollow rod.

[0013] Furthermore, a first inner groove is opened on the left and right sides of the front opening of the movable handle, and a second inner groove is opened on the left and right sides of the front opening of the driven hollow rod, the diameters of the first inner groove and the second inner groove correspond to the vertical moving positions, and a cutting blade is installed on the lower surface of the end of the driven hollow rod.

[0014] Furthermore, the driven hollow rod and the transmission gear rod are of an integrated design, and the limiting sliding plate and the transmission gear rod are fixedly connected, and two groups of the limiting sliding plate and the transmission gear rod are installed symmetrically about the center point of the driven hollow rod.

[0015] Furthermore, the outer surface of the transmission gear rod and the outer surface of the worm gear contact each other to form an engaging structure, and the rotating disk is fixedly installed on the top of the worm gear, and the outer surface of the end of the worm gear contacts the inner surface of the rotating support frame to form a sliding structure, and the moving direction of the transmission support rod passes through the first inner groove and the second inner groove.

[0016] Furthermore, the rotating disc forms a transmission structure through the outer surface of the worm and the side of the transmission gear rod, and the inner surface of the first movable inner groove contacts the outer surface of the limiting sliding plate to form a sliding structure, and the cutting blade is fixedly installed at the end of the driven hollow rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the femoral head necrosis treatment device for regional cleaning, when the cutting blade needs to be extended, the rotating disc is rotated to drive the fixed worm to rotate, and the rotation of the worm drives the transmission gear rod to slide downward along the inside of the first movable inner groove. Since the driven hollow rod and the transmission gear rod are designed as an integrated unit, the driven hollow rod slides downward synchronously until the driven hollow rod drives the cutting blade to slide to a position suitable for use and then stops rotating. Such a design makes the overall device easier to adjust and more applicable. Furthermore, when the moving operation is completed and the mounting housing needs to be fixed to the driven hollow rod, the fixed sliding handle is slid to the right along the second moving inner groove when the driven hollow rod slides, so that the transmission support rod passes through the abutment frame, and the reset fixing spring is compressed at the same time. After the alignment work is completed, the fixed sliding handle is released, and the reset fixing spring releases the elastic potential energy to push the transmission support rod out through the first inner groove and the second inner groove that are correspondingly set; Furthermore, after the transmission support rod passes through the first inner groove and the second inner groove, the extended end enters into the embedded support frame arranged at the corresponding position to complete further fixation, thereby ensuring the stability of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the movable handle of the present invention; Figure 2Schematic diagram of the three-dimensional structure of the installation housing of the present invention; Figure 3 Schematic diagram of the three-dimensional structure of the first moving inner groove of the present invention; Figure 4 Schematic diagram of the three-dimensional structure of the limit sliding plate of the present invention; Figure 5 Schematic diagram of the three-dimensional structure of the sliding fixing frame of the present invention; Figure 6 Schematic diagram of the three-dimensional structure of the transmission support rod of the present invention.

[0019] In the figure: 1. Moving handle; 2. Installation housing; 3. First moving inner groove; 4. First inner groove; 5. Sliding fixing frame; 6. Cutting blade; 7. Rotating disc; 8. Driven hollow rod; 9. Limit sliding plate; 10. Second inner groove; 11. Second moving inner groove; 12. Transmission gear rod; 13. Worm; 14. Rotating support frame; 15. Fixed sliding handle; 16. Fitting support frame; 17. Transmission support rod; 18. Reset fixing spring; 19. Contact frame. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1: Please refer to Figures 1-6 , the present invention provides the following technical solutions: A device for treating osteonecrosis of the femoral head for regional cleaning, including a moving handle 1, an installation housing 2 and a contact frame 19.

[0022] Below the moving handle 1, an installation housing 2 is installed, and first moving inner grooves 3 are opened on the left and right sides of the installation housing 2. An engagement sliding mechanism for driving the driven hollow rod 8 is installed inside the first moving inner groove 3. The engagement sliding mechanism includes a rotating disc 7, and a worm 13 is installed on the lower surface of the rotating disc 7. The rotating disc 7 and the worm 13 are integrally designed, and the worm 13 is rotatably installed inside the moving handle 1. A rotating support frame 14 is installed on the outer surface of the lower end of the worm 13, and the rotating support frame 14 is fixedly installed on the inner surface of the installation housing 2. Transmission gear rods 12 are installed on the left and right sides of the worm 13, and a driven hollow rod 8 is installed on the lower surface of the transmission gear rod 12; On the outer surface of the installation housing 2, a sliding fixing frame 5 is installed, and an elastic fitting mechanism for driving the transmission support rod 17 is installed inside the sliding fixing frame 5.

[0023] As Figure 2, Figure 3 , Figure 4 For the technical solution shown in Figure 3 and Figure 4 , to solve the problem that it is inconvenient for manual maintenance in case of failure, it is disclosed that: A limit sliding plate 9 is installed on the back of the transmission gear rod 12, and first moving inner grooves 3 are opened on the left and right sides of the installation housing 2. The limit sliding plate 9 slides along the inside of the first moving inner grooves 3, and the inner surface of the installation housing 2 is in contact with the outer surface of the driven hollow rod 8. On the front opening of the moving handle 1, first inner grooves 4 are correspondingly opened on the left and right. On the front opening of the driven hollow rod 8, second inner grooves 10 are correspondingly opened on the left and right. The diameters of the first inner grooves 4 and the second inner grooves 10 correspond to the vertical moving positions, and a cutting blade 6 is installed on the lower surface of the end of the driven hollow rod 8. The driven hollow rod 8 and the transmission gear rod 12 are integrally designed, and the limit sliding plate 9 is fixedly connected to the transmission gear rod 12. Moreover, two groups of the limit sliding plate 9 and the transmission gear rod 12 are symmetrically installed about the center point of the driven hollow rod 8 on the left and right. The outer surface of the transmission gear rod 12 is in contact with the outer surface of the worm 13 to form a meshing structure, and a rotating disc 7 is fixedly installed at the top of the worm 13. Moreover, the outer surface of the end of the worm 13 is in contact with the inner surface of the rotating support frame 14 to form a sliding structure. And the moving direction of the transmission support rod 17 passes through the first inner grooves 4 and the second inner grooves 10. The rotating disc 7 is in contact with the side surface of the transmission gear rod 12 through the outer surface of the worm 13 to form a transmission structure, and the inner surface of the first moving inner grooves 3 is in contact with the outer surface of the limit sliding plate 9 to form a sliding structure. Moreover, the cutting blade 6 is fixedly installed at the end of the driven hollow rod 8.

[0024] When it is necessary to perform the extension work on the cutting blade 6, first hold the moving handle 1 tightly and rotate the rotating disc 7 rotatably installed inside the moving handle 1. Since the worm 13 is fixedly installed on the lower surface of the rotating disc 7, and the moving handle 1 is internally connected to the installation housing 2, the worm 13 rotates circumferentially inside the rotating support frame 14 fixedly installed inside the installation housing 2 synchronously with the rotation. While the worm 13 is rotating, it generates a meshing movement with the transmission gear rods 12 in contact on the left and right. Driven by the meshing movement, the transmission gear rods 12 slide downward along the inside of the first moving inner grooves 3 opened at the corresponding positions on the left and right sides of the installation housing 2. And the sliding of the transmission gear rods 12 drives the limit sliding plates 9 integrally designed on the back to perform the limit operation synchronously. Since the driven hollow rod 8 is fixedly installed on the lower surface of the transmission gear rod 12, the driven hollow rod 8 is driven to move downward simultaneously with the movement. And the downward movement of the driven hollow rod 8 closely adheres to the inner surface of the installation housing 2. The cutting blade 6 is fixedly installed on the lower surface of the end of the driven hollow rod 8. Continuously rotating the rotating disc 7 can complete the length adjustment of the cutting blade 6.

[0025] As Figure 2 , Figure 3 ,Figure 4 The technical solution shown, in order to solve the problem that it is inconvenient to perform manual maintenance in the event of a malfunction, discloses: the elastic interlocking mechanism includes a contact frame 19, and the upper and lower ends of the contact frame 19 are fixedly installed inside the sliding fixed frame 5, and a transmission support rod 17 is installed inside the contact frame 19, and a reset fixing spring 18 is installed on the outer surface of the transmission support rod 17, and the reset fixing spring 18 is nested on the outer surface of the transmission support rod 17, and the right end of the reset fixing spring 18 is in contact with the contact frame 19, and the contact frame 19 is of a hollow design, the transmission support rod 17 is slidably installed on the right side of the sliding fixed frame 5, and a fixed sliding handle 15 is installed on the outer surface of the transmission support rod 17, and the transmission support rod 17 and the fixed sliding handle 15 are one The fixed sliding handle 15 slides left and right along the inside of the second movable inner groove 11, and the left end of the transmission support rod 17 is provided with an embedded support frame 16, and the opening position of the embedded support frame 16 corresponds to the moving direction of the transmission support rod 17, and the embedded support frame 16 is fixedly installed inside the embedded support frame 16, the fixed sliding handle 15 and the transmission support rod 17 are of an integral design, and the fixed sliding handle 15 abuts against the left side of the reset fixed spring 18, and the right side of the reset fixed spring 18 contacts with the left side of the abutment frame 19 to form an elastic structure, and the outer surface of the transmission support rod 17 contacts with the inner surface of the abutment frame 19 to form a sliding structure.

[0026] When it is necessary to fix the installation shell 2 to the driven hollow rod 8 after adjusting to the appropriate length, before rotating the rotating disc 7, it is necessary to slide the fixed sliding handle 15 to the right along the inside of the second moving inner groove 11. Use the fixed sliding handle 15 to drive the transmission support rod 17 fixedly connected to it. The transmission support rod 17 slides and passes through the abutting frame 19 nested on the outer surface, and then passes through the right side of the sliding fixed frame 5 again, realizing the separation of the first inner groove 4 from the inside of the second inner groove 10. While the transmission support rod 17 passes through the inside of the abutting frame 19, the right side of the reset fixed spring 18 nested on the outer surface of the transmission support rod 17 abuts against the left end of the abutting frame 19, and as the transmission support rod 17 continues to slide, the reset fixed spring 18 is abutted by the abutting frame 19 and continuously contracts. After the driven hollow rod 8 reaches the appropriate length, release the fixed sliding handle 15. Since the left end of the reset fixed spring 18 abuts against the fixed sliding handle 15, the elastic potential energy released by the reset fixed spring 18 drives the transmission support rod 17 to slide to the left again through the fixed sliding handle 15, and passes through the first inner groove 4 and the second inner groove 10 aligned at the corresponding positions. After passing through the inside of the first inner groove 4 and the second inner groove 10, the left end of the transmission support rod 17 enters the fitting support frame 16 fixedly installed inside the sliding fixed frame 5. The hollow position of the fitting support frame 16 corresponds to the movement direction of the transmission support rod 17, so the transmission support rod 17 enters the inside of the fitting support frame 16 to complete a more stable fitting and fixation.

[0027] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A regional cleaning device for the treatment of osteonecrosis of the femoral head, comprising a movable handle (1), a mounting housing (2) and a contact frame (19); It is characterized in that: The mounting housing (2) is installed below the movable handle (1), and first moving inner grooves (3) are opened on the left and right sides of the mounting housing (2). A meshing sliding mechanism for driving the driven hollow rod (8) is installed inside the first moving inner groove (3). The meshing sliding mechanism includes a rotating disc (7), and a worm (13) is installed on the lower surface of the rotating disc (7). The rotating disc (7) and the worm (13) are integrally designed, and the worm (13) is rotatably installed inside the movable handle (1). A rotating support frame (14) is installed on the lower outer surface of the worm (13), and the rotating support frame (14) is fixedly installed on the inner surface of the mounting housing (2). Transmission gear rods (12) are installed on the left and right sides of the worm (13), and a driven hollow rod (8) is installed on the lower surface of the transmission gear rod (12); A sliding fixed frame (5) is installed on the outer surface of the mounting housing (2), and an elastic fitting mechanism for driving the transmission support rod (17) is installed inside the sliding fixed frame (5).

2. The regional cleaning treatment device for femoral head necrosis according to claim 1, wherein: The elastic fitting mechanism includes a contact frame (19), and the upper and lower ends of the contact frame (19) are fixedly installed inside the sliding fixed frame (5). A transmission support rod (17) is installed inside the contact frame (19). A reset fixing spring (18) is installed on the outer surface of the transmission support rod (17), and the reset fixing spring (18) is nested on the outer surface of the transmission support rod (17).

3. The femoral head necrosis treatment device for regional cleaning according to claim 2, characterized in that: The right end of the reset fixing spring (18) abuts against the contact frame (19), and the contact frame (19) is of a hollow design. The transmission support rod (17) is slidably installed on the right side surface of the sliding fixed frame (5), and a fixed sliding handle (15) is installed on the outer surface of the transmission support rod (17).

4. A femoral head necrosis treatment device for regional cleaning according to claim 3, characterized in that: The transmission support rod (17) and the fixed sliding handle (15) are integrally designed, and a second moving inner groove (11) is opened on the outer surface of the sliding fixed frame (5). The fixed sliding handle (15) slides left and right along the inside of the second moving inner groove (11). The left end of the transmission support rod (17) is installed with a fitting support frame (16), and the opening position of the fitting support frame (16) corresponds to the moving direction of the transmission support rod (17), and the fitting support frame (16) is fixedly installed inside the fitting support frame (16).

5. The femoral head necrosis treatment device for regional cleaning according to claim 4, characterized in that: The fixed sliding handle (15) and the transmission support rod (17) are integrally designed, and the fixed sliding handle (15) abuts against the left side surface of the reset fixing spring (18). Moreover, the right side surface of the reset fixing spring (18) contacts the left side surface of the contact frame (19) to form an elastic structure, and the outer surface of the transmission support rod (17) contacts the inner surface of the contact frame (19) to form a sliding structure.

6. The femoral head necrosis treatment device for regional cleaning according to claim 1, characterized in that: A limit sliding plate (9) is installed on the back surface of the transmission gear rod (12), and first moving inner grooves (3) are formed on the left and right sides of the installation housing (2). The limit sliding plate (9) slides along the inside of the first moving inner grooves (3), and the inner surface of the installation housing (2) is in mutual contact with the outer surface of the driven hollow rod (8).

7. A femoral head necrosis treatment device for regional cleaning according to claim 6, characterized in that: First inner grooves (4) are correspondingly formed on the left and right at the front opening of the moving handle (1), and second inner grooves (10) are correspondingly formed on the left and right at the front opening of the driven hollow rod (8). The diameters of the first inner grooves (4) and the second inner grooves (10) correspond to the vertical moving positions, and a cutting blade (6) is installed on the lower surface of the end of the driven hollow rod (8).

8. A femoral head necrosis treatment device for regional cleaning according to claim 7, characterized in that: The driven hollow rod (8) and the transmission gear rod (12) are of an integral design, and the limit sliding plate (9) is fixedly connected to the transmission gear rod (12). Moreover, two groups of the limit sliding plate (9) and the transmission gear rod (12) are symmetrically installed about the center point of the driven hollow rod (8) on the left and right.

9. The femoral head necrosis treatment device for regional cleaning according to claim 8, characterized in that: The outer surface of the transmission gear rod (12) is in mutual contact with the outer surface of the worm (13) to form a meshing structure. The rotating disc (7) is fixedly installed at the top of the worm (13). Moreover, the outer surface of the end of the worm (13) is in contact with the inner surface of the rotating support frame (14) to form a sliding structure, and the moving direction of the transmission support rod (17) passes through the first inner grooves (4) and the second inner grooves (10).

10. A device for treating osteonecrosis of the femoral head with regional cleaning according to claim 9, characterized in that: The rotating disc (7) forms a transmission structure through the mutual contact between the outer surface of the worm (13) and the side surface of the transmission gear rod (12). The inner surface of the first moving inner grooves (3) is in contact with the outer surface of the limit sliding plate (9) to form a sliding structure, and the cutting blade (6) is fixedly installed at the end of the driven hollow rod (8).

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