Orthopedic reduction hook

By designing the structure of the rotating sleeve and telescopic sleeve in the orthopedic reduction hook, the problem of unreasonable design of the telescopic components of the orthopedic reduction hook in the prior art is solved, and safety protection for patients and convenient operation by doctors is achieved.

CN222899180UActive Publication Date: 2025-05-27ZHONGQIANG MEDICAL HOSPITAL OF BEICHUAN QIANG AUTONOMOUS COUNTY
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Patent Information

Application Number
CN202421114666.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-21
Publication Date
2025-05-27
Estimated Expiration
2034-05-21

AI Technical Summary

Technical Problem

The telescopic components of the existing orthopedic reduction hook are unreasonable, which may cause secondary damage to the patient and is inconvenient for doctors to operate.

Method used

An orthopedic reduction hook is designed, including a main rod, a rotating sleeve and a telescopic sleeve. The rotating sleeve is always placed at the end of the main rod. The position of the second bone hook is adjusted by the extension of the telescopic sleeve, so as to prevent the telescopic device from entering the patient's body and simplify the operation of the doctor.

Benefits of technology

It effectively avoids secondary harm to patients, simplifies the doctor's operating procedures, and improves the convenience and safety of operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an orthopaedic reduction hook, relates to the technical field of medical instruments, and solves the technical problems that secondary injury is possibly caused to a patient due to unreasonable design of a telescopic component of an existing device, and the operation of a doctor is inconvenient. The bone hook comprises a main rod, a rotating sleeve and a telescopic sleeve, one end of the main rod is sleeved with the rotating sleeve, the rotating sleeve is sleeved with the telescopic sleeve in a threaded mode, the rotating sleeve is rotationally connected with the main rod, a second bone hook is connected to the upper portion of one end of the telescopic sleeve, and the other end of the main rod is connected with a first bone hook. According to the utility model, the rotating end is always arranged outside the body, so that secondary injury to a patient is avoided, and the like.
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Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to an orthopedic reduction hook. Background Art

[0002] Bone injury refers to the situation where the body is impacted by external force, resulting in damage to the bones. Such injuries may cause different degrees of harm such as fractures, fissures, dislocations, etc. In severe cases, they may even affect the normal movement function of an individual. The recovery time and treatment methods of bone injuries vary depending on factors such as the severity of the injury and the physical condition of the individual. The reduction of bones is an important link in the treatment of bone injuries, mainly referring to restoring the fractured ends displaced due to fractures to their normal anatomical relationships in order to promote fracture healing and avoid complications. During the fracture reduction process, a reduction hook is one of the commonly used instruments, and its main function is to help doctors better expose, pull, and fix bones during the operation. The reduction hooks currently in use are usually made of strong materials such as stainless steel. Generally, the hook body is slender and the end is provided with a hooked end, and the hooked end is used to traction and reduce the fractured bones.

[0003] In the existing patent CN207785259U, it discloses a hooked bone fixator, including a main rod and a clamping hook. A sliding groove rod is provided at the right end of the main rod. A groove is arranged on the upper end surface of the sliding groove rod along the axial direction of the sliding groove rod. A connecting head is arranged at the right end of the sliding groove rod. The main rod, the sliding groove rod, and the connecting head are integrally formed. A bifurcated hook is also provided at the right end of the sliding groove rod. The clamping hook is provided with a limiting block on the side wall of the second through hole that matches the groove. The clamping hook is sleeved on the sliding groove rod through the second through hole. A hollow screw rod is sleeved on the right part of the main rod. A movable handle is sleeved on the hollow screw rod. An internal threaded hole that matches the hollow screw rod is axially arranged on the left part of the movable handle. A fifth through hole is axially arranged on the right part of the movable handle. The right part of the movable handle is sleeved on the sliding groove rod. A grasping handle is arranged at the left end of the main rod. The grasping handle is provided with a fifth through hole at the corresponding position of the fourth threaded hole.

[0004] In the existing patent CN207785259U, when rotating the movable handle, due to the threaded connection, the movable handle will move, thereby pushing the clamping hook forward. The clamping hook and the bifurcated hook cooperate to clamp the bone. However, in this device, all the threaded telescopic components are arranged at one end close to the bone. During the operation, it is even possible that the movable handle extends into the patient's body during the movement, which is likely to cause secondary harm to the patient. Moreover, the distance between the movable handle and the grasping handle of this device will increase as the movable handle rotates, which is not convenient for doctors to control the operation. Summary of the Utility Model

[0005] The utility model provides an orthopedic reduction hook, aiming to solve the technical problems that the unreasonable design of the telescopic component of the existing device may cause secondary harm to patients and is not convenient for doctors to operate.

[0006] To solve the above-mentioned existing technical problems, the technical solution adopted by the present utility model is as follows:

[0007] An orthopedic reduction hook includes a main rod, a rotating sleeve, and a telescopic sleeve. One end of the main rod is sleeved with the rotating sleeve, and the telescopic sleeve is threadedly sleeved on the rotating sleeve. The rotating sleeve is rotatably connected to the main rod. A second bone hook is connected to the side wall of one end of the telescopic sleeve, and a first bone hook is connected to the other end of the main rod. The ends of the first bone hook and the second bone hook can cooperate, and the telescopic sleeve is located between the rotating sleeve and the first bone hook.

[0008] The present utility model is provided with a main rod, and a telescopic sleeve and a rotating sleeve are sequentially arranged on the main rod from left to right. The rotating sleeve is rotatably connected to the main rod, and the telescopic sleeve is threadedly sleeved on the rotating sleeve. When medical staff rotates the rotating sleeve, the rotation of the rotating sleeve will cause the telescopic sleeve to linearly expand and contract, so as to push the second bone hook closer to the first bone hook until the ends of the second bone hook and the first bone hook cooperate or the second bone hook and the first bone hook clamp the bone, thereby fixing the bone injury for subsequent operations. In this structure, the rotating sleeve is always placed at the end of the main rod, and the second bone hook is adjusted by the elongation of the telescopic sleeve. There is no telescopic device or the like between the first bone hook and the second bone hook. When medical staff operate, the manual rotation part of the telescopic device will not extend into the patient's body. It is always placed outside the patient's body and will not cause secondary injury to the patient. Moreover, the distance between the holding end and the rotating sleeve when holding the device is very short, which is convenient for medical staff to operate.

[0009] Further, a circular limiting groove is provided at one end of the main rod. The rotating sleeve includes a rotating end and a threaded end. A first slider is provided on the inner wall of the rotating end. The first slider is placed in the limiting groove and is slidably connected to the limiting groove. The inner diameters of the rotating end and the threaded end are the same as the diameter of the main rod.

[0010] After adopting this technical solution, it should be noted that by setting the limiting groove and the first slider on the inner wall of the rotating end, the rotation of the rotating sleeve is limited, preventing the rotating sleeve from moving along the main rod and only allowing the rotating sleeve to rotate, preventing secondary injury caused by improper operation of medical staff. And through the limitation of the limiting groove, it is convenient for medical workers to apply force when rotating the rotating end, facilitating the adjustment of the second bone hook.

[0011] Preferably, the inner wall of the telescopic sleeve is provided with a thread that matches the threaded end, and the inner diameter of the telescopic sleeve is the same as the inner diameter of the threaded end.

[0012] After adopting this technical solution, it should be noted that the expansion and contraction of the telescopic sleeve are realized through thread cooperation, with a simple structure, low cost, and convenient replacement.

[0013] Preferably, a sliding sleeve is also slidably provided on the main rod, and two blind holes are symmetrically opened on the side of one end of the sliding sleeve close to the telescopic sleeve. Both of the blind holes are provided with connecting parts, one end of the connecting part is connected to the telescopic sleeve, and the second bone hook is connected to the other end of the sliding sleeve. The first bone hook, sliding sleeve, telescopic sleeve and rotating sleeve are arranged on the main rod in sequence.

[0014] After adopting this technical solution, it should be noted that by setting a sliding sleeve and placing the second bone hook at the end of the sliding sleeve, the telescopic sleeve will push the sliding sleeve to slide, and by connecting a connecting piece between the telescopic sleeve and the sliding sleeve, when it is necessary to retract the second bone hook, the telescopic sleeve retracts when the rotating end is rotated, and the sliding sleeve is driven to retract together through the set connecting piece, and there is no need to manually pull back the sliding sleeve separately. In addition, it should be noted that by setting a through hole, when the telescopic sleeve will push the sliding sleeve to slide, the elastic piece will retract into the through hole, so that the telescopic sleeve and the sliding sleeve are closer, which is convenient for subsequent wire threading operations.

[0015] Preferably, a sliding groove along the axial direction of the main rod is provided at one end of the main rod close to the sliding sleeve, and the sliding groove is located on the side of the main rod away from the first bone hook. A second sliding block is provided on the inner wall of the sliding sleeve, and the second sliding block is placed in the sliding groove and is slidably connected to the sliding groove.

[0016] After adopting this technical solution, it should be noted that by setting a sliding groove and a second sliding block on the inner wall of the sliding sleeve, the movement of the sliding sleeve is restricted, and the rotation of the sliding sleeve is restricted, so that it can only move in a straight line, thereby ensuring the accurate docking of the first bone hook and the second bone hook.

[0017] Furthermore, a first guide hole is provided in the first bone hook, and a second guide hole is provided in the main rod. The first guide hole and the second guide hole are connected. One end of the first guide hole passes through a side surface of one end of the first bone hook, and the second guide hole passes through the main rod.

[0018] After adopting this technical solution, it should be noted that by setting a first guide hole in the first bone hook and a second guide hole in the main rod, after the first bone hook and the second bone hook fix the bone, a steel wire can be inserted into the second guide hole, and the steel wire passes through the second guide hole and the first guide hole and comes out from the side of the end of the first bone hook. After the steel wire at the passing end is fixed, the device can be withdrawn to fix the bone with the steel wire, thereby achieving the two effects of early reduction fixation and steel wire fixation, which is convenient to use and improves efficiency.

[0019] Preferably, the end of the first bone hook is provided with a docking end, the docking end is pointed, the end of the second bone hook is provided with a docking hole that fits the docking end, and the middle of the cross-section of the first bone hook and the second bone hook is square, and both sides are semicircular.

[0020] After adopting this technical solution, it should be noted that by setting the pointed docking end, this docking end can not only be docked with the end of the second bone hook, but also, due to its pointed shape, it can smoothly penetrate through human tissues, improving efficiency. In addition, by setting the middle of the cross-section of the first bone hook and the second bone hook to be square and both sides to be semicircular, the first bone hook and the second bone hook are made flatter. Combining with the pointed shape of the docking end, the first bone hook and the second bone hook can penetrate into tissues more smoothly, reducing damage to surrounding tissues and reducing the pain and recovery time of patients.

[0021] Preferably, the outer diameter of the threaded end is smaller than the outer diameter of the rotating end, and the outer diameters of the telescopic sleeve and the sliding sleeve are both the same as the outer diameter of the telescopic rotating end.

[0022] After adopting this technical solution, it should be noted that by setting the outer diameter of the threaded end to be smaller than the outer diameter of the rotating end, and the outer diameters of the telescopic sleeve and the sliding sleeve are both the same as the outer diameter of the telescopic rotating end, the outer diameter of the sliding sleeve, the outer diameter of the rotating sleeve and the overall outer diameter after the telescopic sleeve is connected are the same and uniform. When the telescopic sleeve is placed in the body, the harm to the patient is reduced.

[0023] Preferably, one end of the main rod is provided with a holding rod, and the holding rod is perpendicular to the main rod.

[0024] After adopting this technical solution, it should be noted that through the holding rod, it is convenient for medical staff to hold the device during the operation and keep the device stable.

[0025] Preferably, the connecting piece is made of elastic rubber material.

[0026] After adopting this technical solution, it should be noted that by setting the connecting piece, the second bone hook can be pulled back when the telescopic sleeve is retracted. The connecting piece is made of elastic rubber material. If the rotating sleeve is rotated to cause a small rotation of the telescopic sleeve, the telescopic sleeve will not affect the stability of the second bone hook and the main rod, and the operation is safer.

[0027] The usage steps of the present utility model are as follows: First, an incision needs to be made at the position of the bone injury to be fixed, so that the first bone hook and the main rod can be disassembled and inserted. The first bone hook is inserted into the position where the bone needs to be fixed. The end of the first bone hook peels off the tissue and makes the first bone hook surround the bone circumference. Then, the rotating end of the rotating sleeve can be rotated. During the rotation, the telescopic sleeve will slowly extend. This telescopic sleeve will push the sliding sleeve and the second bone hook closer to the first bone hook. Continuously rotate the rotating sleeve until the first bone hook and the second bone hook fix the bone. After releasing the hand, locking will be achieved due to the thread fit. Then, insert a steel wire into the second guiding hole. The steel wire passes through the second guiding hole and the first guiding hole and exits from the side of the end of the first bone hook, thus realizing the fixation of the bone injury with the steel wire. When the device needs to be withdrawn, continuously rotate the rotating end in the reverse direction, and the telescopic sleeve will continuously drive the sliding sleeve to retract, and the device can be withdrawn.

[0028] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0029] 1. An orthopedic reduction hook provided by the present utility model is provided with a telescopic sleeve and a rotating sleeve on the main rod in sequence from left to right. The rotating sleeve is rotatably connected to the main rod, and the telescopic sleeve is threadedly sleeved on the rotating sleeve. The rotating sleeve is always placed at the end of the main rod, and the adjustment of the second bone hook is realized through the extension of the telescopic sleeve. There is no telescopic device or the like between the first bone hook and the second bone hook. When medical staff operate, the manually rotating part of the telescopic device will not extend into the patient's body. It is always placed outside the patient's body and will not cause secondary harm to the patient. Moreover, the distance between the holding end and the rotating sleeve when holding the device is very short, which is convenient for medical staff to operate.

[0030] 2. An orthopedic reduction hook provided by the present utility model realizes the limitation of the rotating sleeve by setting a limiting groove and a first slider on the inner wall of the rotating end, preventing the rotating sleeve from moving along the main rod and only allowing the rotating sleeve to rotate, preventing secondary harm caused by improper operation of medical staff. And through the limitation of the limiting groove, it is convenient for medical workers to apply force when rotating the rotating end and is convenient for adjusting the second bone hook.

[0031] 3. An orthopedic reduction hook provided by the present utility model is provided with a first guiding hole in the first bone hook and a second guiding hole in the main rod. After the first bone hook and the second bone hook fix the bone, a steel wire can be inserted into the second guiding hole. The steel wire passes through the second guiding hole and the first guiding hole and exits from the side of the end of the first bone hook. After fixing the steel wire at the exiting end and withdrawing the device, the bone can be fixed with the steel wire, achieving two effects of preliminary reduction fixation and steel wire fixation, which is convenient to use and improves efficiency.

[0032] 4. The orthopedic reduction hook provided by the present utility model can pull back the second bone hook when retracting the telescopic sleeve by setting a connecting member. The connecting member is made of elastic rubber material. When the rotating sleeve is rotated to cause a slight rotation of the telescopic sleeve, the telescopic sleeve will not affect the stability of the second bone hook and the main rod, and the operation is safer. Description of the Drawings

[0033] The present utility model will be described by way of examples and with reference to the drawings, wherein:

[0034] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0035] Figure 2 is a schematic diagram of another perspective of the overall structure of the present utility model;

[0036] Figure 3 is a cross-sectional view of the rotating sleeve of the present utility model;

[0037] Figure 4 is a cross-sectional view of the telescopic sleeve of the present utility model;

[0038] Figure 5 is a schematic diagram of the bottom of the overall structure of the present utility model;

[0039] Figure 6 is a connection schematic diagram of the sliding sleeve and the telescopic sleeve of the present utility model.

[0040] Reference Numerals:

[0041] 1 - main rod, 2 - first bone hook, 201 - docking end, 3 - rotating sleeve, 301 - rotating end, 302 - threaded end, 303 - first slider, 4 - telescopic sleeve, 401 - thread, 5 - sliding sleeve, 501 - second slider, 502 - blind hole, 6 - second bone hook, 601 - docking hole, 7 - holding rod, 8 - first guiding hole, 9 - second guiding hole, 10 - chute, 11 - limiting groove, 12 - connecting member. Detailed Embodiments

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Usually, the components of the embodiments of the present application described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application that is required to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0043] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the practical product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0044] The following Figures 1-6 will make a detailed description of the present utility model.

[0045] An orthopedic reduction hook, as Figure 1 、 Figure 2 shown, includes a main rod 1, a rotating sleeve 3, and a telescopic sleeve 4. One end of the main rod 1 is sleeved with the rotating sleeve 3, and the telescopic sleeve 4 is sleeved on the rotating sleeve 3 with a thread 401. The rotating sleeve 3 is rotatably connected to the main rod 1. A second bone hook 6 is connected to the side wall of one end of the telescopic sleeve 4, and a first bone hook 2 is connected to the other end of the main rod 1. The ends of the first bone hook 2 and the second bone hook 6 can cooperate with each other, and the telescopic sleeve 4 is located between the rotating sleeve 3 and the first bone hook 2.

[0046] As Figure 5 shown, an annular limiting groove 11 is provided at one end of the main rod 1. The rotating sleeve 3 includes a rotating end 301 and a threaded end 302. A first slider 303 is provided on the inner wall of the rotating end 301. The first slider 303 is placed in the limiting groove 11 and is slidably connected to the limiting groove 11. The inner diameters of the rotating end 301 and the threaded end 302 are the same as the diameter of the main rod 1.

[0047] As Figure 3 、 Figure 4 shown, the inner wall of the telescopic sleeve 4 is provided with a thread 401 that cooperates with the threaded end 302, and the inner diameter of the telescopic sleeve 4 is the same as the inner diameter of the threaded end 302.

[0048] As Figure 1 、 Figure 2As shown, a sliding sleeve 5 is also slidably provided on the main rod 1, and two blind holes 502 are symmetrically opened on the side of one end of the sliding sleeve 5 close to the telescopic sleeve 4. The two blind holes 502 are both provided with a connecting piece 12, and one end of the connecting piece 12 is connected to the telescopic sleeve 4. The second bone hook 6 is connected to the other end of the sliding sleeve 5. The first bone hook 2, the sliding sleeve 5, the telescopic sleeve 4 and the rotating sleeve 3 are sequentially arranged on the main rod 1.

[0049] like Figure 5 As shown, one end of the main rod 1 close to the sliding sleeve 5 is provided with a sliding groove 10 along the axial direction of the main rod 1, and the sliding groove 10 is located on the side of the main rod 1 away from the first bone hook 2. A second sliding block 501 is provided on the inner wall of the sliding sleeve 5, and the second sliding block 501 is placed in the sliding groove 10 and is slidably connected to the sliding groove 10.

[0050] like Figure 1 As shown, a first guide hole 8 is provided in the first bone hook 2, and a second guide hole 9 is provided in the main rod 1. The first guide hole 8 and the second guide hole 9 are connected, one end of the first guide hole 8 passes through the side surface of one end of the first bone hook 2, and the second guide hole 9 passes through the main rod 1.

[0051] like Figure 1 As shown, the end of the first bone hook 2 is provided with a docking end 201, and the docking end 201 is pointed. The end of the second bone hook 6 is provided with a docking hole 601 that fits with the docking end 201. The cross-sections of the first bone hook 2 and the second bone hook 6 are square in the middle and semicircular on both sides.

[0052] like Figure 3 As shown, the outer diameter of the threaded end 302 is smaller than the outer diameter of the rotating end 301 , and the outer diameters of the telescopic sleeve 4 and the sliding sleeve 5 are consistent with the outer diameter of the telescopic rotating end 301 .

[0053] like Figure 1 , Figure 2 , Figure 5 As shown, a gripping rod 7 is provided at one end of the main rod 1 , and the gripping rod 7 is perpendicular to the main rod 1 .

[0054] The connecting member 12 is made of elastic rubber material.

[0055] The usage steps of the present utility model are as follows: First, an operation needs to be performed on the bone injury position to be fixed, so that the first bone hook 2 and the main rod 1 can be disassembled and assembled and inserted. The first bone hook 2 is stabbed into the position where the bone needs to be fixed. The end of the first bone hook 2 peels off the tissue and makes the first bone hook 2 surround the bone circumference. Then, the rotating end 301 of the rotating sleeve 3 can be rotated. During the rotation, the telescopic sleeve 4 will slowly extend. This telescopic sleeve 4 will push the sliding sleeve 5 and the second bone hook 6 towards the first bone hook 2. Continuously rotate the rotating sleeve 3 until the first bone hook 2 and the second bone hook 6 fix the bone. After releasing the hand, locking will be achieved due to the cooperation of the thread 401. Then, a steel wire is inserted into the second guiding hole 9. The steel wire passes through the second guiding hole 9 and the first guiding hole 8 and exits from the side of the end of the first bone hook 2, and thus the fixation of the bone injury with the steel wire can be realized. When the device needs to be withdrawn, the rotating end 301 can be continuously rotated in the reverse direction, and the telescopic sleeve 4 will continuously drive the sliding sleeve 5 to retract, and then the device can be withdrawn.

[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An orthopedic reduction hook, characterized in that: The invention comprises a main rod (1), a rotating sleeve (3) and a telescopic sleeve (4); one end of the main rod (1) is sleeved with the rotating sleeve (3); the telescopic sleeve (4) is threadedly sleeved on the rotating sleeve (3); the rotating sleeve (3) is rotatably connected to the main rod (1); a side wall of one end of the telescopic sleeve (4) is connected to a second bone hook (6); the other end of the main rod (1) is connected to a first bone hook (2); the ends of the first bone hook (2) and the second bone hook (6) can be matched; the telescopic sleeve (4) is located between the rotating sleeve (3) and the first bone hook (2); An annular limiting groove (11) is provided at one end of the main rod (1); the rotating sleeve (3) comprises a rotating end (301) and a threaded end (302); a first sliding block (303) is provided on the inner wall of the rotating end (301); the first sliding block (303) is placed in the limiting groove (11) and is slidably connected to the limiting groove (11); the inner diameters of the rotating end (301) and the threaded end (302) are consistent with the diameter of the main rod (1); A first guide hole (8) is provided in the first bone hook (2), and a second guide hole (9) is provided in the main rod (1); the first guide hole (8) and the second guide hole (9) are connected, one end of the first guide hole (8) passes through a side surface of one end of the first bone hook (2), and the second guide hole (9) passes through the main rod (1).

2. The orthopedic reduction hook according to claim 1, characterized in that: The inner wall of the telescopic sleeve (4) is provided with a thread (401) matching with the threaded end (302), and the inner diameter of the telescopic sleeve (4) is consistent with the inner diameter of the threaded end (302).

3. The orthopedic reduction hook according to claim 1, characterized in that: The main rod (1) is also slidably sleeved with a sliding sleeve (5), and two blind holes (502) are symmetrically opened on the side of one end of the sliding sleeve (5) close to the telescopic sleeve (4), and the two blind holes (502) are both provided with a connecting piece (12), one end of the connecting piece (12) is connected to the telescopic sleeve (4), and the second bone hook (6) is connected to the other end of the sliding sleeve (5), and the first bone hook (2), the sliding sleeve (5), the telescopic sleeve (4) and the rotating sleeve (3) are sequentially arranged on the main rod (1).

4. The orthopedic reduction hook according to claim 3, characterized in that: A sliding groove (10) is provided along the axial direction of the main rod (1) at one end of the main rod (1) close to the sliding sleeve (5), and the sliding groove (10) is located on the side of the main rod (1) away from the first bone hook (2). A second sliding block (501) is provided on the inner wall of the sliding sleeve (5), and the second sliding block (501) is placed in the sliding groove (10) and is slidably connected to the sliding groove (10).

5. The orthopedic reduction hook according to claim 1, characterized in that: The end of the first bone hook (2) is provided with a butt end (201), and the butt end (201) is pointed. The end of the second bone hook (6) is provided with a butt hole (601) that fits with the butt end (201). The cross-sections of the first bone hook (2) and the second bone hook (6) are square in the middle and semicircular on both sides.

6. The orthopedic reduction hook according to claim 3, characterized in that: The outer diameter of the threaded end (302) is smaller than the outer diameter of the rotating end (301), and the outer diameters of the telescopic sleeve (4) and the sliding sleeve (5) are consistent with the outer diameter of the telescopic rotating end (301).

7. An orthopedic reduction hook according to any one of claims 1 to 6, characterized in that: A gripping rod (7) is provided at one end of the main rod (1), and the gripping rod (7) is perpendicular to the main rod (1).

8. The orthopedic reduction hook according to claim 3, characterized in that: The connecting piece (12) is made of elastic rubber material.

Citation Information

Patent Citations

  • Crotch formula bone fixer

    CN207785259U