Adjustable operation positioner

Abstract

The utility model discloses an adjustable operation positioner, and relates to the technical field of medical instruments. In order to solve the problems that an existing positioner cannot be fixed to the glenoid bone, positioning is inaccurate, and differentiation cannot be met, the following technical scheme is provided that the glenoid bone positioner comprises a glenoid bone fixing assembly and a bone drill leading-in assembly, and the glenoid bone fixing assembly is connected with the bone drill leading-in assembly through an adjuster; the glenoid bone fixing assembly comprises an exchange rod, an exchange channel and a locking device, one end of the exchange rod is provided with a first protruding part, the first protruding part and the axial direction of the exchange rod form a non-obtuse angle, the exchange rod is movably sleeved with the exchange channel, and the locking device is used for fixing a glenoid bone between the first protruding part and the exchange channel. The bone tunnel can be fixed on the glenoid bone firmly, does not need to be held by hands, and can avoid skewing of the manufactured bone tunnel; the differentiated requirements of different crowds are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, concretely relates to a adjustable operation positioner. BACKGROUND

[0002] Latarjet surgery is used for correcting severe glenoid bone defect, which generally involves removing a section of coracoid process and its attached muscle and fixing it to the front of the glenoid to prevent further dislocation of the shoulder joint.

[0003] In recent years, with the vigorous development of minimally invasive technology, the international Latarjet surgery under arthroscopy has become popular, in which bone tunnels are made on the cut coracoid process and glenoid bone respectively, and then a titanium plate with a loop is sequentially threaded through the bone tunnels on the coracoid process and glenoid bone to fix them together. During the operation, the accurate and safe making of the bone tunnel on the glenoid bone is a key step and a difficult point of the operation.

[0004] When making the bone tunnel on the glenoid bone, a positioner is needed. The commonly used positioner is composed of a guide channel that can be inserted into a Kirschner wire to position the glenoid bone surface, a Kirschner wire positioning channel arranged in parallel, and a connecting piece between the two channels. At least the following problems exist in the use of this positioner: first, the positioner cannot be fixed on the glenoid bone and needs to be held by the doctor to resist the bone surface; second, due to the inability to be fixed, the positioner rotates in the human body, resulting in inaccurate positioning and a skewed bone tunnel that does not meet the operation requirements; third, the bone morphology and thickness of different populations (regions, races, children and adults, etc.) are different, and the positioner cannot meet the differentiated needs. SUMMARY

[0005] The utility model aims to provide a adjustable operation positioner to solve the problems of the existing positioner that cannot be fixed on the glenoid bone, inaccurate positioning, and inability to meet the differentiated needs.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A adjustable operation positioner, comprising: a glenoid bone fixing assembly and a bone drill guide assembly, the glenoid bone fixing assembly is connected with the bone drill guide assembly through an adjuster; the glenoid bone fixing assembly comprises a switching rod, a switching channel and a locking device, one end of the switching rod is provided with a first protruding part, the first protruding part and the axial direction of the switching rod form a non-obtuse angle, the switching channel is movably sleeved on the switching rod, and the locking device is used for fixing the glenoid bone between the first protruding part and the switching channel.

[0008] Further, the bone drill guide assembly comprises a catheter, and the catheter is connected with the switching rod through the adjuster.

[0009] Further, the catheter is sleeved with a catheter fixing groove, and the catheter is connected with the regulator through the catheter fixing groove.

[0010] Further, one end of the regulator is sleeved on the exchange rod, and the other end is provided with a fine adjustment nut, and the head of the fine adjustment nut is fixed in the catheter fixing groove.

[0011] Further, the main body of the regulator is hollow, and two slits are arranged on each of two opposite surfaces of the main body respectively, and a scale line is arranged between the two slits on each surface.

[0012] Further, two clamping portions are arranged on each of two opposite surfaces of the catheter fixing groove, and the two clamping portions on each surface are clamped into the two slits on the corresponding surface of the regulator respectively.

[0013] Further, the regulator is sleeved on one end of the exchange rod, and a regulator fixing nut is movably arranged on the exchange rod, and the regulator fixing nut is used for locking the regulator on the exchange rod or unlocking the regulator from the exchange rod.

[0014] Further, the bottom of the exchange channel is provided with a second protruding portion.

[0015] Further, a Kirschner wire channel is arranged on the exchange channel.

[0016] Further, the locking device comprises a locking member sleeved on the exchange rod and a screw thread arranged on the exchange rod.

[0017] The utility model has the following beneficial effects:

[0018] The locator can be firmly fixed on the glenoid bone, and the unique fixing mechanism ensures the stability and reliability of positioning, so that the doctor does not need to hold the locator during the operation, and the complexity and human error of the operation are greatly reduced. This feature can avoid the problem of bone tunnel deviation caused by the movement or rotation of the locator, and significantly improve the accuracy and safety of the operation.

[0019] The locator provided by the utility model has excellent fine adjustment capability. The doctor can easily adjust the angle between the locator and the glenoid bone according to the actual needs of the operation, so as to ensure that the surgical instrument can enter the glenoid bone at the best angle, thereby further optimizing the operation effect. At the same time, the distance between the catheter and the exchange channel can also be accurately adjusted through the fine adjustment nut, and this design makes the locator more suitable for the joint glenoid bone shape and thickness of different patients.

[0020] The locator can meet the diversified needs of different groups of people due to differences in bone morphology and thickness. Regardless of regional, racial, or age differences, the locator can provide accurate and stable surgical positioning support, providing a strong guarantee for the successful implementation of orthopedic surgery. Therefore, the adjustable surgical locator not only improves the accuracy and safety of surgery, but also significantly enhances the flexibility and adaptability of surgery. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the exchange rod in the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the exchange channel in the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the catheter fixing groove in the utility model;

[0025] Figures 1 to 4 The reference signs shown in the figure respectively represent: exchange rod 1, exchange channel 2, locking device 3, adjuster 4, adjuster fixing nut 5, catheter 6, catheter fixing groove 7, fine adjustment nut 8. DETAILED DESCRIPTION

[0026] The technical solutions of the utility model will be described in detail below in combination with the drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0027] Please refer to Figure 1 The embodiment relates to an adjustable surgical locator, especially suitable for accurate positioning when making a bone tunnel on a glenoid bone. The locator can be fixed on the glenoid bone through its unique structural design, avoiding rotation or movement during surgery, so as to ensure that the made bone tunnel meets the surgical requirements. The following is a detailed description of the specific implementation of the embodiment.

[0028] Firstly, the adjustable surgical locator of the embodiment mainly includes a glenoid bone fixing assembly and a bone drill guiding assembly. The glenoid bone fixing assembly is used to stably fix the locator on the glenoid bone, while the bone drill guiding assembly is used to guide the bone drill into the glenoid bone to make a bone tunnel.

[0029] The glenoid bone fixation assembly specifically comprises an exchange rod 1 and an exchange channel 2 sleeved on the exchange rod 1. The exchange rod 1 has a threaded area for cooperating with a subsequent fixing nut. A first protruding part is arranged at the bottom of the exchange rod 1, and the shape and size of the first protruding part are designed to match the shape of the glenoid bone, thereby increasing the friction between the exchange rod 1 and the glenoid bone and improving the stability of fixation. Meanwhile, a second protruding part is arranged at the bottom of the exchange channel 2, and the protruding part cooperates with the first protruding part of the exchange rod 1 to clamp the glenoid bone therebetween, thereby further enhancing the effect of fixation.

[0030] In addition, a Kirschner wire channel is also provided on the exchange channel 2. This channel allows the doctor to drive a Kirschner wire into the glenoid bone when needed, so as to further stabilize the positioner. In particular, when the glenoid bone is severely damaged, the clamping between the exchange rod 1 and the exchange channel 2 and the bone may not be able to maintain sufficient fixation, and the use of the Kirschner wire is particularly important at this time.

[0031] Outside the threaded area of the exchange rod 1, a locking device 3 is sleeved. The device adjusts its position by rotating, thereby clamping or loosening the glenoid bone between the exchange rod 1 and the exchange channel 2. When the doctor needs to fix the positioner on the glenoid bone, the doctor only needs to rotate the locking device 3 to move it towards the glenoid bone until the required clamping force is reached.

[0032] Next is the bone drill guide assembly, which mainly comprises a guide tube 6, a guide tube fixing groove 7, a fine adjustment nut 8, an adjuster 4 and an adjuster fixing nut 5. The guide tube 6 is used to guide the bone drill into the glenoid bone, and the top of the guide tube 6 is connected to the glenoid bone fixation assembly through the adjuster 4. The guide tube 6 is sleeved with the guide tube fixing groove 7, and the groove cooperates with the slits on the adjuster 4 through the clamping parts thereon, thereby realizing the fixation and angle adjustment of the guide tube 6 on the adjuster 4.

[0033] The main body of the adjuster 4 is hollow, and two slits are arranged on each of the two opposite faces. These slits not only allow the clamping parts of the guide tube fixing groove 7 to be inserted, but also provide a window for the doctor to observe the scale. Between the two slits on each face, scale lines are arranged, and the scale lines are marked with an accuracy of 2 mm, and the long lines represent integers 10 mm, 20 mm and 30 mm, thereby helping the doctor to accurately adjust the position and angle of the guide tube 6 during the operation.

[0034] Two clamping parts are arranged on the two opposite faces of the guide tube fixing groove 7, and the two clamping parts on each face are respectively clamped into the two slits on the corresponding face of the adjuster 4. This clamping design allows the guide tube fixing groove 7 to be finely adjusted along the slit direction on the adjuster 4 while maintaining a certain stability. In addition, one of the clamping parts on each face is arranged in the shape of an arrow, which is used to indicate the current scale, thereby facilitating the doctor to quickly and accurately read and adjust during the operation.

[0035] The adjuster 4 is movably inserted into the exchange rod 1 near one end, and a adjuster fixing nut 5 is provided. The nut is used to fix the adjuster 4 on the exchange rod 1, preventing it from rotating or moving during the operation. When the doctor needs to adjust the angle or position of the catheter 6, he only needs to loosen the adjuster fixing nut 5, then rotate or move the adjuster 4 to the desired angle or position, and finally tighten the adjuster fixing nut 5 to fix the adjuster 4.

[0036] The fine-tuning nut 8 is inserted transversely from the other end of the adjuster 4, and its head is fixed in the catheter fixing groove 7. The fine-tuning nut 8 is connected with the adjuster 4 through a threaded fit, allowing the doctor to fine-tune the distance between the catheter 6 and the exchange rod 1 during the operation. This fine-tuning function is particularly important for adapting to the differences in bone morphology and thickness of different populations.

[0037] Here is the specific use process of the locator:

[0038] First, the doctor needs to ensure that the exchange rod 1 and the bottom of the exchange channel 2 are flush. Then, the exchange rod 1, the exchange channel 2 and the locking device 3 are placed into the surgical site from the surgical channel. By inserting the exchange channel 2, the doctor can clamp the glenoid bone between the bottom of the exchange rod 1 and the bottom of the exchange channel 2. Next, the doctor needs to adjust the position of the locking device 3 to securely fix the locator on the glenoid bone. If the glenoid bone is severely damaged, the doctor can also use the Kirschner pin channel on the exchange channel 2 to drill a Kirschner pin into the glenoid bone for additional fixation.

[0039] After the fixation of the glenoid bone fixation assembly is completed, the doctor needs to place the combination of the adjuster 4, the adjuster fixing nut 5, the catheter 6, the catheter fixing groove 7 and the fine-tuning nut 8 into the surgical site from the surgical channel. First, loosen the adjuster fixing nut 5 so that the adjuster can be easily fitted outside the exchange rod 1. Then, the doctor can rotate the adjuster 4 to adjust the angle of the locator to the glenoid bone surface as needed. After the adjustment is completed, tighten the adjuster fixing nut 5 to fix the adjuster 4.

[0040] Next, the doctor can rotate the fine-tuning nut 8 according to the actual morphology and thickness of the glenoid bone, etc. By adjusting the position of the fine-tuning nut 8, the doctor can accurately control the distance between the catheter 6 and the exchange rod 1, so that the end of the catheter 6 is located at the position of the glenoid bone that the doctor considers appropriate. Once the position of the catheter 6 is determined, the doctor can extend the bone drill from the catheter, and use the locator to accurately make a bone tunnel on the glenoid bone.

[0041] The adjustable surgical locator of the present embodiment has significant technical advantages. First, through the cooperation of the exchange rod 1 and the exchange channel 2 and the clamping action of the locking device 3, the locator can be firmly fixed on the glenoid bone, avoiding the risk of rotation or movement during the operation. Second, the design of the adjuster 4 and the fine adjustment nut 8 enables the doctor to accurately adjust the position and angle of the catheter 6 according to the needs of the operation, thereby ensuring that the bone tunnel made meets the requirements of the operation. In addition, the locator also has the ability to adapt to the differences in bone morphology and thickness of different populations, improving the flexibility and accuracy of the operation.

[0042] In specific embodiments, the first protruding part of the exchange rod 1 and the protruding part of the exchange channel 2 can adopt different shapes and sizes to adapt to the glenoid bone morphology of different patients. At the same time, the number and position of the Kirschner wire channels can also be adjusted according to actual conditions to meet different surgical needs. In addition, the material and diameter of the catheter 6 can also be selected according to the needs of the operation to ensure that the bone drill can smoothly enter and make a bone tunnel that meets the requirements.

[0043] During the operation, the doctor can adjust the position and angle of the locator by rotating the adjuster fixing nut 5 and the fine adjustment nut 8. Since the adjuster 4 is provided with scale lines, the doctor can accurately read and adjust the position and angle of the catheter 6. This accuracy is crucial for ensuring the accuracy and stability of the bone tunnel.

[0044] In addition, the adjustable surgical locator of the present embodiment also has the advantages of easy use and cleaning. Its structure design is simple and clear, and the doctor can easily assemble and use the locator. At the same time, since the locator is mainly made of corrosion-resistant materials such as metal and plastic, it is easy to clean and disinfect, meeting the hygiene requirements of medical equipment.

[0045] In summary, the adjustable surgical locator of the present embodiment provides a stable, accurate and flexible solution for making bone tunnels on the glenoid bone through its unique structural design and precise adjustment function. The locator not only improves the accuracy and safety of the operation, but also reduces the risk of operation and the incidence of complications. Therefore, the present embodiment has wide application prospects and market value in the field of orthopedic surgery.

[0046] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable surgical positioner, characterized in that, The application relates to a glenoid bone fixation assembly and a bone drill guide assembly, wherein the glenoid bone fixation assembly is connected with the bone drill guide assembly through an adjuster (4); the glenoid bone fixation assembly comprises an exchange rod (1), an exchange channel (2) and a locking device (3), one end of the exchange rod (1) is provided with a first protruding part, the first protruding part is arranged at a non-obtuse angle with the axial direction of the exchange rod (1), the exchange channel (2) is movably sleeved on the exchange rod (1), and the locking device (3) is used for fixing a glenoid bone between the first protruding part and the exchange channel (2). The bone drill guide assembly comprises a catheter (6), and the catheter (6) is connected with the exchange rod (1) through the adjuster (4).

2. The adjustable surgical positioner of claim 1, wherein, The catheter (6) is externally sleeved with a catheter fixing groove (7), and the catheter (6) is connected with the adjuster (4) through the catheter fixing groove (7).

3. The adjustable surgical positioner of claim 2, wherein, One end of the adjuster (4) is sleeved on the exchange rod (1), and the other end is provided with a fine adjustment nut (8), and the head of the fine adjustment nut (8) is fixed in the catheter fixing groove (7).

4. The adjustable surgical positioner of claim 3, wherein, The main body of the adjuster (4) is hollow, two slits are arranged on each of two opposite surfaces of the main body, and a scale line is arranged between the two slits on each surface.

5. The adjustable surgical positioner of claim 4, wherein, Two clamping parts are arranged on each of two opposite surfaces of the catheter fixing groove (7), and the two clamping parts on each surface are clamped into the two slits on the corresponding surface of the adjuster (4) respectively.

6. The adjustable surgical positioner of claim 5, wherein, An adjuster fixing nut (5) is movably arranged at one end of the adjuster (4) sleeved on the exchange rod (1), and the adjuster fixing nut (5) is used for locking the adjuster (4) on the exchange rod (1) or unlocking the adjuster (4) from the exchange rod (1).

7. The adjustable surgical positioner of claim 2, wherein, A second protruding part is arranged at the bottom of the exchange channel (2).

8. The adjustable surgical positioner of any of claims 1-7, wherein, A kirschner wire channel is arranged on the exchange channel (2).

9. The adjustable surgical positioner of claim 8, wherein, The locking device (3) comprises a locking piece sleeved on the exchange rod (1) and a screw thread arranged on the exchange rod (1).

10. The adjustable surgical positioner of claim 1, wherein, ​

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