Auxiliary automatic hip joint distraction mechanism

Abstract

The utility model relates to the technical field of medicine, and discloses an auxiliary automatic hip joint distraction mechanism which comprises a first clamp frame, one side of the first clamp frame is rotationally connected with a first rotating shaft, and the first clamp frame is rotationally connected with a second clamp frame, a button, a shaft seat and a supporting ring through the first rotating shaft. The surgical forceps are reasonable in structure, the circular ring base and the tooth-shaped base on one side of the first forceps frame enter a surgical position for distraction, and the problems that due to the fact that the tiny angle cannot be adjusted when the surgical forceps enter the surgical position, bones are damaged, sclerotin is early damaged and displaced when distraction is conducted forcefully, and medical staff cannot observe and conduct surgical operation conveniently due to unobvious distraction are solved. The first forceps frame and the second forceps frame are rotationally connected through the first rotating shaft, and the half-tooth clamping strip on one side of the second forceps frame is meshed with the blocking tooth on one side of the button, so that bone separation is more convenient and labor-saving, the half-tooth clamping strip is meshed with the blocking tooth on one side of the button without applying force all the time, the two forceps frames are fixed, manpower and material resources are saved, and the bone separation efficiency is improved. The working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine, in particular to a hip joint auxiliary automatic expansion mechanism. Background Technique

[0002] In total hip arthroplasty, the hip joint capsule needs to be resected. Currently, during the operation of resected the superior and inferior joint capsules before the acetabulum, an assistant is required to use a bone lever (Hohmann retractor) to pull the greater trochanter and the proximal femur forward, which not only occupies the manpower on the operating table, but also risks damaging the acetabular margin and the greater trochanter bone mass, and the anterior joint capsule cannot be fully exposed during the exposure.

[0003] The hip joint replacement surgical retractor disclosed in the Chinese utility model patent application publication specification CN218045207U enables medical staff to conveniently adjust the state of expanding the patient's tissue within the required range. Thus, it can be seen that by using the device in this application, not only the workload of medical staff is reduced, but also the progress of the operation is ensured. However, this device cannot perform micro-angle adjustment to reduce bone damage during the operation, cannot fully expose the patient's opening, making it inconvenient for medical staff to observe and operate during the operation. When separating the bones, the fixation is not stable and requires continuous force to maintain, which is time-consuming and laborious. It cannot perform adjustable-angle multiple fixation on the patient, reducing the work efficiency. Therefore, we propose a new device to solve the above problems. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a hip joint auxiliary automatic expansion mechanism, which solves the problems of inability to perform micro-angle adjustment on the patient, reducing bone damage during the operation, unclear exposure of the patient's wound, inconvenient observation and operation, unreliable fixation during the operation, and time-consuming and laborious.

[0006] (II) Technical Solutions

[0007] To achieve the above objectives, the present utility model is realized through the following technical solutions: A hip joint auxiliary automatic spreading mechanism includes a first pliers frame. One side of the first pliers frame is rotatably connected to a first rotating shaft. The first pliers frame is rotatably connected to a second pliers frame through the first rotating shaft. Inside the first pliers frame, there is a second rotating shaft. The first pliers frame is rotatably connected to a button through the second rotating shaft. A spring buckle is sleeved on the outer surface of the second rotating shaft. One side of the first pliers frame is inserted with a toothed base. One side of the first pliers frame is sleeved with a support assembly. One side of the second pliers frame is fixedly connected to a semi-toothed strip. One side of the second pliers frame is inserted with a first adjusting plate. One side of the first adjusting plate is threadedly penetrated by a first bolt. The first adjusting plate is threadedly penetrated by the first bolt with a first extension plate. One side of the first extension plate is inserted with a second adjusting plate. One side of the second adjusting plate is threadedly penetrated by a second bolt. The second adjusting plate is threadedly penetrated by the second bolt with a second extension plate. One side of the second extension plate is inserted with a circular base.

[0008] Optionally, the support assembly includes a shaft seat, a third rotating shaft, a third adjusting plate, a third bolt, a third extension plate, a fourth adjusting plate, a fourth bolt, a fourth extension plate, and a support ring. Inside the shaft seat, there is a third rotating shaft. The shaft seat is rotatably connected to the third adjusting plate through the third rotating shaft. One side of the third adjusting plate is threadedly penetrated by a third bolt. The third adjusting plate is threadedly penetrated by the third bolt with a third extension plate. One side of the third extension plate is inserted with a fourth adjusting plate. One side of the fourth adjusting plate is threadedly penetrated by a fourth bolt. The fourth adjusting plate is threadedly penetrated by the fourth bolt with a fourth extension plate. One side of the fourth extension plate is inserted with a support ring.

[0009] Optionally, a rack hole is provided on one side of the first pliers frame. The rack hole is adapted to the semi-toothed strip. A groove is provided on one side of the second pliers frame.

[0010] Optionally, a bolt hole is provided on one side of the first adjusting plate. The bolt hole is the same size as the first bolt. An extension hole is provided on one side of the first adjusting plate. The extension hole is adapted to the first extension plate.

[0011] Optionally, a bolt hole is provided on one side of the second adjusting plate. The bolt hole is the same size as the second bolt. An extension hole may be provided on one side of the second adjusting plate. The extension hole is adapted to the second extension plate. Holes are provided around the circular base.

[0012] Optionally, a retaining tooth is provided on one side of the button. The retaining tooth meshes with the semi-toothed strip.

[0013] Optionally, a support pad is provided on one side of the support ring. The material of the support pad is rubber.

[0014] Optionally, a bolt hole is provided on one side of the third adjusting plate. The bolt hole is the same size as the third bolt. An extension hole may be provided on one side of the third adjusting plate. The extension hole is adapted to the third extension plate. A bolt hole is provided on one side of the fourth adjusting plate. The bolt hole is the same size as the fourth bolt. An extension hole may be provided on one side of the fourth adjusting plate. The extension hole is adapted to the fourth extension plate.

[0015] In summary, the technical effects and advantages of the present utility model are as follows:

[0016] 1. The structure of the present utility model is reasonable. The first extension plate is adjusted to a suitable position on one side of the first adjusting plate through the first bolt. The second extension plate is moved on one side of the second adjusting plate through the second bolt. The circular base and the toothed base on one side of the first clamp are used to enter the incision site for expansion. This avoids bone damage caused by the inability to adjust the tiny angle during entry, damage and displacement of the bone quality when forcefully expanding, and the inconvenience for medical staff to observe and perform surgical operations due to insufficient expansion. Thus, the tiny angle can be adjusted during entry, reducing the damage to the patient, facilitating the observation and surgical operations of medical staff, and improving work efficiency. The first clamp and the second clamp are rotatably connected to each other through the first rotating shaft, enabling the two clamps to open and close. The button can be pressed through the spring buckle on the outer surface of the second rotating shaft. The semi-toothed strip on one side of the second clamp and the stop tooth on one side of the button are engaged, avoiding the inconvenience, time-consuming, and laborious process of separating the bones during surgery, as well as the need to exert force for a long time to hold the bones in place without displacement. Therefore, when separating the bones, it is more convenient and labor-saving. After the bones are opened, there is no need to keep exerting force, and the semi-toothed strip and the stop tooth on one side of the button can be engaged to fix the two clamps in place, saving manpower and material resources and improving work efficiency.

[0017] 2. In the present utility model, the third adjusting plate is rotated through the third rotating shaft. The third extension plate is moved in position on one side of the third adjusting plate through the third bolt. The fourth extension plate is moved in position on one side of the fourth adjusting plate through the fourth bolt. The support ring is fixed on the thigh, enabling the support assembly to fixedly support both sides of the thigh, avoiding unstable fixation during surgery, bone offset and retraction, and secondary injury to the patient. Thus, the bone is more firmly supported during the surgical process, the patient is fixed stably without offset, reducing the injury to the patient, and making it more convenient and fast for medical staff to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is an exploded structural diagram of the first clamp of the present utility model;

[0020] Figure 3 This is a schematic exploded view of the second clamp of the present utility model;

[0021] Figure 4 This is a schematic exploded view of the support assembly of the present utility model;

[0022] Figure 5 This is a schematic plan view of the support assembly of the present utility model.

[0023] In the figure: 1. First clamp; 2. First rotating shaft; 3. Second clamp; 4. Second rotating shaft; 5. Button; 6. Spring buckle; 7. Tooth-shaped base; 8. Support assembly; 801. Shaft seat; 802. Third rotating shaft; 803. Third adjusting plate; 804. Third bolt; 805. Third extension plate; 806. Fourth adjusting plate; 807. Fourth bolt; 808. Fourth extension plate; 809. Support ring; 9. Half-tooth bar; 10. First adjusting plate; 11. First bolt; 12. First extension plate; 13. Second adjusting plate; 14. Second bolt; 15. Second extension plate; 16. Ring base. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment: Refer to Figures 1-5 As shown in a hip joint auxiliary automatic spreading mechanism, which includes a first clamp 1, a first rotating shaft 2 is rotatably connected to one side of the first clamp 1, the first clamp 1 is rotatably connected to a second clamp 3 through the first rotating shaft 2, a second rotating shaft 4 is rotatably connected to the inside of the first clamp 1, the first clamp 1 is rotatably connected to a button 5 through the second rotating shaft 4, a spring buckle 6 is sleeved on the outer surface of the second rotating shaft 4, a tooth-shaped base 7 is inserted into one side of the first clamp 1, a support assembly 8 is sleeved on one side of the first clamp 1, a half-tooth bar 9 is fixedly connected to one side of the second clamp 3, a first adjusting plate 10 is inserted into one side of the second clamp 3, a first bolt 11 is threadedly penetrated through one side of the first adjusting plate 10, the first adjusting plate 10 is threadedly penetrated through a first extension plate 12 through the first bolt 11, a second adjusting plate 13 is inserted into one side of the first extension plate 12, a second bolt 14 is threadedly penetrated through one side of the second adjusting plate 13, the second adjusting plate 13 is threadedly penetrated through a second extension plate 15 through the second bolt 14, and a ring base 16 is inserted into one side of the second extension plate 15.

[0026] As a preferred implementation manner in this embodiment, asFigures 2 to 3 As shown in the figure, a first rotating shaft 2 is rotatably connected to one side of the first clamp 1. The first clamp 1 is rotatably connected to a second clamp 3 through the first rotating shaft 2. A groove is provided on one side of the second clamp 3. A second rotating shaft 4 is rotatably connected inside the first clamp 1. The first clamp 1 is rotatably connected to a button 5 through the second rotating shaft 4. A retaining tooth is provided on one side of the button 5, and the retaining tooth meshes with a semi-tooth strip 9. A spring buckle 6 is sleeved on the outer surface of the second rotating shaft 4. A toothed base 7 is inserted into one side of the first clamp 1. A semi-tooth strip 9 is fixedly connected to one side of the second clamp 3. A rack hole is provided on one side of the first clamp 1, and the rack hole is adapted to the semi-tooth strip 9. A first adjusting plate 10 is inserted into one side of the second clamp 3. A first bolt 11 threadedly penetrates through one side of the first adjusting plate 10. A bolt hole is provided on one side of the first adjusting plate 10, and the bolt hole is the same size as the first bolt 11. The first adjusting plate 10 threadedly penetrates through a first extension plate 12 through the first bolt 11. An extension hole is provided on one side of the first adjusting plate 10, and the extension hole is adapted to the first extension plate 12. A second adjusting plate 13 is inserted into one side of the first extension plate 12. A second bolt 14 threadedly penetrates through one side of the second adjusting plate 13. A bolt hole is provided on one side of the second adjusting plate 13, and the bolt hole is the same size as the second bolt 14. The second adjusting plate 13 threadedly penetrates through a second extension plate 15 through the second bolt 14. An extension hole may be provided on one side of the second adjusting plate 13, and the extension hole is adapted to the second extension plate 15. A circular ring base 16 is inserted into one side of the second extension plate 15. Holes are provided around the circular ring base 16. During use, the first extension plate 12 is adjusted to a suitable position on one side of the first adjusting plate 10 through the first bolt 11. The second extension plate 15 is moved on one side of the second adjusting plate 13 through the second bolt 14. The circular ring base 16 and the toothed base 7 on one side of the first clamp 1 are inserted into the incision site for dilation. This avoids bone damage caused by the inability to adjust a small angle during entry, damage and displacement of the bone quality during forced dilation, and inconvenient observation and surgical operation by medical staff due to insufficient dilation. Thus, small-angle adjustment can be performed during entry, reducing the damage to the patient, facilitating the observation and surgical operation of medical staff, and improving work efficiency. The first clamp 1 and the second clamp 3 are rotatably connected to each other through the first rotating shaft 2, enabling the two clamps to open and close. The button 5 can be pressed through the spring buckle 6 on the outer surface of the second rotating shaft 4. The semi-tooth strip 9 on one side of the second clamp 3 meshes with the retaining tooth on one side of the button 5, avoiding inconvenience, time-consuming, and laborious separation of the bones during surgery, as well as the need for long-term force application to prevent bone displacement. Therefore, when separating the bones, it can be more convenient and labor-saving. After the bones are opened, there is no need to keep applying force, and the semi-tooth strip 9 and the retaining tooth on one side of the button 5 can be meshed to fix the two clamps in place, saving manpower and material resources and improving work efficiency.

[0027] As Figure 2 andFigures 4 to 5 As shown, in this embodiment, a support assembly 8 is sleeved on one side of the first clamp holder 1. The support assembly 8 includes a shaft seat 801, a third rotating shaft 802, a third adjusting plate 803, a third bolt 804, a third extension plate 805, a fourth adjusting plate 806, a fourth bolt 807, a fourth extension plate 808, and a support ring 809. A third rotating shaft 802 is rotatably connected inside the shaft seat 801. The shaft seat 801 is rotatably connected to a third adjusting plate 803 through the third rotating shaft 802. A third bolt 804 threadedly penetrates through one side of the third adjusting plate 803. A bolt hole is formed on one side of the third adjusting plate 803, and the bolt hole is the same size as the third bolt 804. The third adjusting plate 803 threadedly penetrates through a third extension plate 805 through the third bolt 804. An extension hole may be provided on one side of the third adjusting plate 803, and the extension hole is adapted to the third extension plate 805. A fourth adjusting plate 806 is inserted into one side of the third extension plate 805. A fourth bolt 807 threadedly penetrates through one side of the fourth adjusting plate 806. A bolt hole is formed on one side of the fourth adjusting plate 806, and the bolt hole is the same size as the fourth bolt 807. The fourth adjusting plate 806 threadedly penetrates through a fourth extension plate 808 through the fourth bolt 807. An extension hole may be provided on one side of the fourth adjusting plate 806, and the extension hole is adapted to the fourth extension plate 808. A support ring 809 is inserted into one side of the fourth extension plate 808. A support pad is provided on one side of the support ring 809, and the material of the support pad is rubber. During use, the third adjusting plate 803 is rotated through the third rotating shaft 802. The third extension plate 805 is moved in position on one side of the third adjusting plate 803 through the third bolt 804. The fourth extension plate 808 is moved in position on one side of the fourth adjusting plate 806 through the fourth bolt 807. The support assembly 8 is fixed on the thigh, so that the support assembly 8 fixedly supports both sides of the thigh. It should be noted that the support assembly 8 can be placed on one side of the first clamp holder 1 and the second clamp holder 3 to fix the thigh, avoiding unstable fixation during the operation, bone offset and retraction, and secondary injury to the patient. Thus, the bone is more firmly supported during the operation, the patient is fixedly supported stably without offset, the injury suffered by the patient is reduced, and the operation of medical staff is more convenient and fast.

[0028] The working principle of this utility model:

[0029] During use, the first extension plate 12 is adjusted to a suitable position on one side of the first adjustment plate 10 through the first bolt 11, the second extension plate 15 is moved on one side of the second adjustment plate 13 through the second bolt 14, and the circular base 16 and the toothed base 7 on one side of the first clamp 1 enter the incision site for expansion. This avoids damage to the bone due to the non-adjustable small angle during entry, damage to the bone quality and displacement when forcefully expanding, and the inconvenience for medical staff to observe and perform surgical operations due to insufficient expansion. Therefore, small-angle adjustment can be performed during entry, reducing the damage to the patient, facilitating the observation and surgical operations of medical staff, and improving work efficiency. The first clamp 1 and the second clamp 3 are rotatably connected to each other through the first rotating shaft 2, enabling the two clamps to open and close. The button 5 can be pressed through the spring buckle 6 on the outer surface of the second rotating shaft 4. The semi-toothed bar 9 on one side of the second clamp 3 meshes with the blocking teeth on one side of the button 5, avoiding the inconvenience, time-consuming, and laborious process of separating the bones during surgery, as well as the need to exert force for a long time to hold the bones in place without displacement. Therefore, when separating the bones, it is more convenient and labor-saving. After the bones are opened, there is no need to keep exerting force, and the semi-toothed bar 9 and the blocking teeth on one side of the button 5 can be meshed to fix the two clamps in place, saving manpower and material resources and improving work efficiency. When the patient's bones are supported and opened, the third adjustment plate 803 is rotated through the third rotating shaft 802, the third extension plate 805 is adjusted in position on one side of the third adjustment plate 803 through the third bolt 804, the fourth extension plate 808 is adjusted in position on one side of the fourth adjustment plate 806 through the fourth bolt 807, and the thigh is fixed through the support ring 809, enabling the support assembly 8 to fixedly support both sides of the thigh. This avoids unstable fixation, bone offset and retraction during surgery, and secondary injury to the patient. Therefore, the bones are more firmly supported during the surgical process, the patient is stably fixed without offset, reducing the patient's injury, and facilitating the operation of medical staff more conveniently and quickly.

[0030] All electrical components mentioned in this article are electrically connected to an external main controller and 220V mains power, and the main controller can be a conventional known device such as a computer for control.

[0031] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art 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 within the protection scope of the present invention.

Claims

1. A hip joint auxiliary automatic distraction mechanism, comprising a first clamp frame (1), characterized in that: One side of the first clamp frame (1) is rotatably connected to a first rotating shaft (2), the first clamp frame (1) is rotatably connected to a second clamp frame (3) via the first rotating shaft (2), the interior of the first clamp frame (1) is rotatably connected to a second rotating shaft (4), the first clamp frame (1) is rotatably connected to a button (5) via the second rotating shaft (4), a spring buckle (6) is sleeved on the outer surface of the second rotating shaft (4), a toothed base (7) is inserted into one side of the first clamp frame (1), a support assembly (8) is sleeved on one side of the first clamp frame (1), and a semi-toothed clamp strip (9) is fixedly connected to one side of the second clamp frame (3), A first adjustment plate (10) is inserted into one side of the second clamp frame (3); a first bolt (11) is threadedly penetrated through one side of the first adjustment plate (10); a first extension plate (12) is threadedly penetrated through the first bolt (11) on the first adjustment plate (10); a second adjustment plate (13) is inserted into one side of the first extension plate (12); a second bolt (14) is threadedly penetrated through one side of the second adjustment plate (13); a second extension plate (15) is threadedly penetrated through the second bolt (14) on the second adjustment plate (13); and a circular base (16) is inserted into one side of the second extension plate (15).

2. The hip joint auxiliary automatic distraction mechanism according to claim 1, characterized in that: The support assembly (8) comprises an axle seat (801), a third rotating shaft (802), a third adjusting plate (803), a third bolt (804), a third extension plate (805), a fourth adjusting plate (806), a fourth bolt (807), a fourth extension plate (808), and a support ring (809); the axle seat (801) is internally rotatably connected to the third rotating shaft (802); the axle seat (801) is rotatably connected to the third adjusting plate (803) via the third rotating shaft (802); one end of the third adjusting plate (803) is A third bolt (804) is threadedly penetrated through the side thread, the third adjustment plate (803) is threadedly penetrated through the third extension plate (805) via the third bolt (804), a fourth adjustment plate (806) is plugged into one side of the third extension plate (805), a fourth bolt (807) is threadedly penetrated through one side of the fourth adjustment plate (806), the fourth adjustment plate (806) is threadedly penetrated through the fourth extension plate (808) via the fourth bolt (807), and a support ring (809) is plugged into one side of the fourth extension plate (808).

3. The hip joint auxiliary automatic distraction mechanism according to claim 1, characterized in that: A rack hole is provided on one side of the first clamp frame (1), the rack hole being adapted to fit the half-tooth clamp strip (9), and a groove is provided on one side of the second clamp frame (3).

4. The hip joint auxiliary automatic distraction mechanism according to claim 1, characterized in that: A bolt hole is provided on one side of the first adjustment plate (10), the bolt hole having the same size as the first bolt (11), and an extension hole is provided on one side of the first adjustment plate (10), the extension hole being adapted to fit the first extension plate (12).

5. The hip joint auxiliary automatic distraction mechanism according to claim 1, characterized in that: A bolt hole is provided on one side of the second adjustment plate (13), and the bolt hole is of the same size as the second bolt (14). An extension hole may be provided on one side of the second adjustment plate (13), and the extension hole is adapted to fit the second extension plate (15). Holes are provided around the annular base (16).

6. The hip joint auxiliary automatic distraction mechanism according to claim 1, characterized in that: A retaining tooth is provided on one side of the button (5), and the retaining tooth is meshed with the semi-toothed clamping strip (9).

7. The hip joint auxiliary automatic distraction mechanism according to claim 2, characterized in that: A support pad is provided on one side of the support ring (809), and the material of the support pad is rubber.

8. The hip joint auxiliary automatic distraction mechanism according to claim 2, characterized in that: A bolt hole is provided on one side of the third adjustment plate (803), and the bolt hole is of the same size as the third bolt (804). An extension hole may be provided on one side of the third adjustment plate (803), and the extension hole is mutually compatible with the third extension plate (805). A bolt hole is provided on one side of the fourth adjustment plate (806), and the bolt hole is of the same size as the fourth bolt (807). An extension hole may be provided on one side of the fourth adjustment plate (806), and the extension hole is mutually compatible with the fourth extension plate (808).

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