Auxiliary positioning structure for hip joint surgery

Abstract

The utility model relates to the field of orthopedic surgery tools, in particular to a hip joint surgery auxiliary positioning structure which comprises a positioning hook and a bent handle, the positioning hook and the bent handle are assembled, anti-rotation threads are arranged on the outer wall of the positioning hook, one end, provided with the anti-rotation threads, of the positioning hook is used for being fixed in an acetabulum of a surgical site, and the other end, provided with the anti-rotation threads, of the positioning hook is used for being fixed to the acetabulum of the surgical site. And the bent handle is used for removing the skin and soft tissues near the surgical site. The hip joint operation safety device has the effect of improving the hip joint operation safety.

Description

Technical Field

[0001] The present application relates to the field of orthopedic surgical instruments, and in particular to an auxiliary positioning structure for hip joint surgery. Background Art

[0002] Hip surgery is one of the most common orthopedic surgeries. During hip surgery, the skin and soft tissue of the surgical site need to be pulled apart so that the surgical site is completely exposed to the doctor's line of sight to facilitate the effective performance of the operation.

[0003] In the prior art, a Kirschner wire is usually used to perform the skin and soft tissue separation operation during hip joint surgery. During the operation, the Kirschner wire retractor is inserted into the acetabulum, hooked on the acetabular bone and pulled out of the field of vision, and the end of the Kirschner wire away from the joint is bent. The Kirschner wire is squeezed against the skin and soft tissue to achieve the separation operation, so that the surgical site is exposed, and the surgical site of the patient can be effectively operated on. However, in the actual surgical operation, since the fixed end of the Kirschner wire and the joint is too smooth, the skin and soft tissue exert a reverse squeezing force on the Kirschner wire, which may make the Kirschner wire "unhooked" during the operation, and there are safety hazards in the operation. Utility Model Content

[0004] In order to improve the safety of hip joint surgery, the present application provides a hip joint surgery auxiliary positioning structure.

[0005] The present application provides a hip joint surgery auxiliary positioning structure, which adopts the following technical solutions:

[0006] A hip joint surgery auxiliary positioning structure comprises a positioning hook and a bending handle, wherein the positioning hook is assembled with the bending handle, an outer wall of the positioning hook is provided with an anti-rotation thread, one end of the positioning hook provided with the anti-rotation thread is used to be fixed in the acetabulum at the surgical site, and the bending handle is used to separate the skin and soft tissue near the surgical site.

[0007] By adopting the above technical solution, the positioning hook is fixed in the acetabulum, and the bending handle hooks the acetabulum bone to move the skin and soft tissue away from the surgical site. The outer wall of the positioning hook is provided with an anti-rotation thread to fix the positioning hook to the acetabulum thread, thereby enhancing the surface tortuosity of the positioning hook, reducing the possibility of the positioning hook being "unhooked" due to the interaction of forces between the skin and soft tissue of the bending handle, and improving the safety of hip joint surgery.

[0008] Optionally, the positioning hook includes a positioning part and a connecting part, the positioning part is connected to the connecting part, the thread of the outer wall of the positioning hook is arranged on the outer wall of the positioning part, the bending handle includes a plug-in part and a hand-holding part, the plug-in part is connected to the hand-holding part, and an installation groove matching the plug-in part is opened on the side of the connecting part away from the positioning part, and the plug-in part is inserted into the installation groove.

[0009] By adopting the above technical solution, after the positioning part is fixed, the connecting part is located away from the acetabulum, so that the plug-in part is inserted into the installation groove, which facilitates matching the plug-in part with the notch of the installation groove, thereby improving the installation convenience of the bending handle.

[0010] Optionally, one end of the positioning portion away from the connecting portion is pointed.

[0011] By adopting the above technical solution, the positioning part can more easily penetrate the acetabulum surface when inserted, and can be better fixed in the acetabulum, thereby improving the firmness of the connection between the positioning part and the acetabulum.

[0012] Optionally, the connecting portion is cylindrical.

[0013] By adopting the above technical solution, the connecting part abuts against the skin or soft tissue, and the connecting part is cylindrical, thereby reducing the damage of the connecting part to the skin or soft tissue.

[0014] Optionally, the plug-in portion is in the shape of a polygonal column.

[0015] By adopting the above technical solution, during the actual surgical operation, it is necessary to adjust the exposure range of the surgical site according to the surgical requirements. When it is necessary to adjust the direction of the hand-held part, the plug-in direction of the plug-in part in the mounting groove is adjusted, and there is no need to rotate the positioning hook on the acetabulum, thereby reducing the possibility of the positioning part and the acetabulum being loosened due to the adjustment of the hand-held part direction, and reducing the risk of the rivet hook being "unhooked".

[0016] Optionally, one end of the hand-held portion close to the plug-in portion is arc-shaped.

[0017] By adopting the above technical solution, the possibility of skin or soft tissue damage caused by the sharp angle between the plug-in part and the hand-held part is reduced.

[0018] Optionally, the positioning hook is threadedly connected with a locking pin, the locking pin is abutted against the bending handle, and the locking pin is used to fix the bending handle to the positioning hook.

[0019] By adopting the above technical solution, the locking pin and the positioning hook thread cooperate, and the locking pin is turned until the locking pin and the bending handle are against each other, so that the bending handle and the positioning hook are fixed, reducing the possibility of displacement between the bending handle and the positioning hook, and improving the safety of the operation.

[0020] Optionally, the locking pins are arranged at equal distances.

[0021] By adopting the above technical solution, the force applied to the bending handle by the locking pin is evenly distributed, the fixing tightness between the bending handle and the positioning hook by the locking pin is enhanced, and the possibility of displacement between the bending handle and the positioning hook is reduced.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The positioning hook is fixed in the acetabulum. The bending handle hooks the acetabulum bone to pull the skin and soft tissue away from the surgical site. The outer wall of the positioning hook is provided with an anti-rotation thread to fix the positioning hook and the acetabulum thread, thereby enhancing the surface tortuosity of the positioning hook and reducing the possibility of the positioning hook being "unhooked" due to the interaction of the force between the skin and soft tissue of the bending handle, thereby improving the safety of hip joint surgery.

[0024] 2. After the positioning part is fixed, the connecting part is located away from the acetabulum, so that the plug-in part is inserted into the installation slot, which is convenient for matching the plug-in part with the notch of the installation slot, thereby improving the convenience of installation of the bending handle;

[0025] 3. During the actual surgical operation, the exposure range of the surgical site needs to be adjusted according to the surgical requirements. When the direction of the hand-held part needs to be adjusted, the plug-in direction of the plug-in part in the mounting groove is adjusted. There is no need to rotate the positioning hook on the acetabulum, which reduces the possibility of the positioning part and the acetabulum being loosened due to the adjustment of the hand-held part direction, and reduces the risk of the rivet hook being "unhooked". BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0027] Figure 2 It is an exploded view of the overall structure in the embodiment of the present application.

[0028] Description of reference numerals:

[0029] 1. Positioning hook; 11. Positioning part; 111. Anti-rotation thread; 12. Connecting part; 121. Mounting groove; 2. Bending handle; 21. Plug-in part; 22. Hand-held part; 3. Locking nail. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-2 This application is described in further detail.

[0031] The embodiment of the present application discloses a hip joint surgery auxiliary positioning structure.

[0032] Reference Figure 1 and Figure 2A hip joint surgery auxiliary positioning structure includes a positioning hook 1 and a bending handle 2. The positioning hook 1 is assembled with the bending handle 2. The end of the positioning hook 1 away from the bending handle 2 is used to be fixed in the acetabulum. The bending handle 2 is used to separate the skin and soft tissue near the surgical site. During the operation, the doctor inserts the positioning hook 1 into the acetabulum. The positioning hook 1 provides a positioning point for exposing the surgical site, and then assembles the bending handle 2 with the bending handle 2. The bending handle 2 separates the skin and soft tissue near the surgical site to expose the surgical site, making it convenient for the doctor to perform surgery on the patient.

[0033] The positioning hook 1 includes a positioning portion 11 and a connecting portion 12. The positioning portion 11 is in the shape of a cylindrical rod. One end of the positioning portion 11 is fixedly connected to the connecting portion 12. An anti-rotation thread 111 is provided on the outer wall of the positioning portion 11. The anti-rotation thread 111 is provided at one end of the positioning portion 11 away from the connecting portion 12. One end of the positioning portion 11 provided with the anti-rotation thread 111 is fixed in the acetabulum, so that the positioning portion 11 is threadedly fixed to the acetabulum, increasing the contact area between the positioning portion 11 and the acetabulum component, so that the positioning portion 11 is threadedly fixed in the acetabulum, enhancing the fixation stability of the positioning portion 11 in the acetabulum, reducing the possibility of the rivet hook being "unhooked" during surgery, and improving the safety of the surgery.

[0034] In order to make it easier for the positioning portion 11 to be inserted through the acetabulum surface and to be better fixed in the acetabulum, one end of the positioning portion 11 away from the connecting portion 12 is in a pointed shape.

[0035] The connecting portion 12 is cylindrical. During surgery, the connecting portion 12 contacts the skin and soft tissues, thereby reducing the possibility of damage to the skin and soft tissues.

[0036] The bending handle 2 includes a plug-in portion 21 and a hand-held portion 22, the plug-in portion 21 and the hand-held portion 22 are fixedly connected, and the plug-in portion 21 is assembled with the connecting portion 12. When performing surgery, the plug-in portion 21 needs to be installed on the connecting portion 12. To facilitate the assembly of the plug-in portion 21 and the connecting portion 12, a mounting groove 121 matching the plug-in portion 21 is provided on the side of the connecting portion 12 away from the positioning portion 11, and the outer wall of the connecting portion 12 is abutted against the groove wall of the mounting groove 121. When installing the plug-in portion 21, the plug-in portion 21 is inserted into the mounting groove 121 to reduce the possibility of obstruction of vision when the plug-in portion 21 is installed.

[0037] The plug-in portion 21 is in the shape of a polygonal column. In this embodiment, the plug-in portion 21 is in the shape of a quadrilateral column, which reduces the possibility of the plug-in portion 21 rotating in the mounting groove 121, thereby reducing the possibility of the hand-held portion 22 rotating, so that the hand-held portion 22 can stably separate the skin and soft tissue, thereby improving the safety of the operation. At the same time, when performing a surgical operation, when the plug-in portion 21 is inserted into the mounting groove 121, the direction of the hand-held portion 22 can be adjusted according to the requirements of the operation, thereby reducing the possibility of the positioning portion 11 and the acetabulum becoming loose and "unhooking" when adjusting the separation direction of the skin and soft tissue, thereby improving the safety of the operation.

[0038] One end of the hand-held portion 22 close to the plug-in portion 21 is arc-shaped, which reduces the possibility of skin and soft tissue damage caused by the sharp connection between the hand-held portion 22 and the plug-in portion 21.

[0039] A threaded opening is provided on the side wall of the connecting part 12, and a locking nail 3 is threadedly connected to the connecting part 12. The locking nail 3 is inserted into the threaded opening, and the locking nail 3 matches the thread of the threaded opening. The tail of the locking nail 3 abuts against the side wall of the plug-in part 21. The locking nail 3 is used to fix the plug-in part 21 and the connecting part 12, thereby reducing the possibility of the plug-in part 21 being separated from the connecting part 12 due to the thrust of the skin or soft tissue, thereby improving the safety of the operation.

[0040] The locking pins 3 are arranged equidistantly along the length direction of the connecting portion 12, so that the bending handle 2 is evenly stressed, the fixing tightness between the bending handle 2 and the positioning hook 1 by the locking pins 3 is enhanced, and the possibility of displacement between the bending handle 2 and the positioning hook 1 is reduced.

[0041] The implementation principle of a hip joint surgery auxiliary positioning structure in an embodiment of the present application is as follows: when hip joint surgery is required, one end of the positioning portion 11 provided with an anti-rotation thread 111 is inserted into the acetabulum for fixation, so that the positioning portion 11 is fixed to the acetabulum thread, thereby enhancing the surface tortuosity of the positioning portion 11, and reducing the possibility of the positioning portion 11 being "unhooked" due to the interaction of forces between the skin and soft tissue of the bending handle 2; the plug-in portion 21 is inserted into the mounting groove 121 to separate the skin and soft tissue of the surgical site; the plug-in portion 21 is in a polygonal columnar shape, thereby reducing the possibility of movement and rotation of the hand-held portion 22, and separating the skin and soft tissue parts stably; when the exposed area of ​​the surgical site needs to be adjusted, the position of the plug-in portion 21 in the mounting groove 121 is adjusted to adjust the exposed area, thereby reducing the possibility of loosening the connection between the positioning portion 11 and the acetabulum when the position of the hand-held portion 22 is adjusted, thereby reducing the possibility of "unhooking" and improving the safety of hip joint surgery.

[0042] The above are all preferred embodiments of the present application. The embodiments are only explanations of the present application and do not limit the protection scope of the present application in turn. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A hip joint surgery auxiliary positioning structure, characterized in that: The invention comprises a positioning hook (1) and a bending handle (2), wherein the positioning hook (1) is assembled with the bending handle (2), an outer wall of the positioning hook (1) is provided with an anti-rotation thread (111), one end of the positioning hook (1) provided with the anti-rotation thread (111) is used to be fixed in the acetabulum of the surgical site, and the bending handle (2) is used to separate the skin and soft tissue near the surgical site.

2. The hip joint surgery auxiliary positioning structure according to claim 1, characterized in that: The positioning hook (1) comprises a positioning portion (11) and a connecting portion (12), the positioning portion (11) and the connecting portion (12) being connected, the thread of the outer wall of the positioning hook (1) being arranged on the outer wall of the positioning portion (11), the bending handle (2) comprising an inserting portion (21) and a hand-held portion (22), the inserting portion (21) and the hand-held portion (22) being connected, a mounting groove (121) matching the inserting portion (21) being provided on a side of the connecting portion (12) away from the positioning portion (11), and the inserting portion (21) being inserted into the mounting groove (121).

3. The hip joint surgery auxiliary positioning structure according to claim 2, characterized in that: One end of the positioning portion (11) away from the connecting portion (12) is in a pointed shape.

4. The hip joint surgery auxiliary positioning structure according to claim 2, characterized in that: The connecting portion (12) is cylindrical.

5. The hip joint surgery auxiliary positioning structure according to claim 2, characterized in that: The plug-in portion (21) is in the shape of a polygonal column.

6. The hip joint surgery auxiliary positioning structure according to claim 2, characterized in that: One end of the hand-held portion (22) close to the plug-in portion (21) is arc-shaped.

7. The hip joint surgery auxiliary positioning structure according to claim 1, characterized in that: The positioning hook (1) is threadedly connected with a locking pin (3), the locking pin (3) abuts against the bending handle (2), and the locking pin (3) is used to fix the bending handle (2) to the positioning hook (1).

8. The hip joint surgery auxiliary positioning structure according to claim 7, characterized in that: The locking pins (3) are arranged at equal distances.

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