Bone positioning needle for orthopedic surgery

Abstract

The utility model relates to the technical field of medical instruments, and discloses a bone positioning needle for orthopedic surgery, which comprises a hollow cylinder, the outer wall of the hollow cylinder is fixedly connected with a graduated scale, the outer wall of the hollow cylinder is slidably connected with an antiskid sleeve, the outer wall of the hollow cylinder is fixedly connected with a support plate, and the upper surface of the support plate is attached to the lower surface of the antiskid sleeve. A supporting column is fixedly connected to the upper surface of the supporting plate, a rotating plate is rotatably connected to the outer wall of the supporting column, one end of a first spring is fixedly connected to the upper surface of the rotating plate, a sliding column is slidably connected to the interior of the rotating plate, the first spring is fixedly connected to one side of the sliding column, and the sliding column is slidably connected to the interior of the anti-skid sleeve. A supporting assembly is arranged on the outer wall of the hollow cylinder. According to the bone positioning device, firstly, through cooperation of the hollow cylinder, the clamping hole and other components, the effects that the anti-skid sleeve is convenient to disassemble and the angle of the bone positioning needle is convenient to control are achieved, and flexibility is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a bone positioning needle for orthopedic surgery. Background Art

[0002] Orthopedic surgery is a type of surgery that specifically addresses problems with the skeletal system. It involves the treatment and repair of bones, joints, muscles, ligaments, and other related tissues. These surgeries may be used to treat fractures, joint replacements, spinal surgery, tendon repair, deformity correction, etc. During surgery, bone positioning pins can provide stable support, allowing doctors to perform delicate operations on the bone structure without causing displacement or instability.

[0003] Traditional bone localization needles usually consist of a handle, a positioning needle body, a tip, and connecting parts. The doctor holds the bone localization needle and punctures it into the skin and soft tissue during the operation until it accurately reaches the bone structure that needs to be located. The doctor pushes and rotates the handle to achieve precise positioning and guidance of the needle tip. Through the accurate positioning and guidance of the bone localization needle, the doctor can achieve precise positioning and stable support of the bone structure during the operation, thereby improving the success rate and safety of the operation.

[0004] However, traditional bone localization pins do not have a scale to assist in locating the angle of the pin, and the anti-slip sleeve cannot be removed. Since the angle cannot be accurately measured, the doctor needs to rely on experience or visual judgment to control the angle of the bone localization pin, which increases the uncertainty and difficulty of the surgical operation. At the same time, the inability to remove the anti-slip sleeve will limit the doctor's operability during use, especially when the angle needs to be adjusted or parts need to be replaced. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a bone positioning needle for orthopedic surgery, aiming to improve the problem that traditional bone positioning needles have no scale to assist in positioning the angle of the needle and cannot remove the anti-slip sleeve, which increases the uncertainty of surgical operations and limits the doctor's operability during use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bone positioning needle for orthopedic surgery, comprising a hollow tube, a scale fixedly connected to the outer wall of the hollow tube, a non-slip sleeve slidably connected to the outer wall of the hollow tube, a support plate fixedly connected to the outer wall of the hollow tube, the upper surface of the support plate fits with the lower surface of the non-slip sleeve, a support column fixedly connected to the upper surface of the support plate, a rotating plate rotatably connected to the outer wall of the support column, a spring one end is fixedly connected to the upper surface of the rotating plate, a sliding column is slidably connected to the inside of the rotating plate, the spring one is fixedly connected to one side of the sliding column, the sliding column is slidably connected to the inside of the non-slip sleeve, and a support assembly is provided on the outer wall of the hollow tube.

[0007] Furthermore, the support assembly includes a support block, the support block is fixedly connected to the outer wall of the hollow cylinder, and the support column is fixedly connected to the upper surface of the support block.

[0008] Furthermore, a fixing plate is fixedly connected to the side wall of the support block, and a sliding plate is slidably connected inside the fixing plate.

[0009] Furthermore, a hollow block is rotatably connected to the side wall of the sliding plate, and a handle is fixedly connected to the upper surface of the hollow block.

[0010] Furthermore, a positioning pin is fixedly connected to the side wall of the sliding plate, and a positioning pin body is slidably connected to the inside of the hollow cylinder.

[0011] Furthermore, a second spring is provided between the positioning pin and the outer wall of the sliding plate, one end of the second spring is fixedly connected to the side wall of the fixed plate, and a fixing column is fixedly connected to the outer wall of the hollow cylinder.

[0012] Furthermore, the positioning pin is slidably connected to the inside of the fixing column, and a plurality of positioning holes are provided inside the positioning pin body.

[0013] Furthermore, the positioning pin is slidably connected inside the positioning hole, and the positioning pin is slidably connected inside the hollow cylinder.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, firstly, the anti-slip sleeve is easy to disassemble through the cooperation between the anti-slip sleeve, the sliding column, the spring, the hollow cylinder and the engaging hole, etc., which solves the problem that the traditional bone positioning needle has no scale to assist in positioning the angle of the needle and the anti-slip sleeve cannot be disassembled, which increases the uncertainty of surgical operation and limits the doctor's operability during use, thereby improving flexibility.

[0016] 2. In the utility model, firstly, the positioning needle body, the handle, the hollow block, the sliding plate, the positioning pin and the spring are coordinated with each other to achieve the effect of preventing the positioning needle from being deviated. This solves the problem that when the positioning needle is driven into the bone, it is easy to deviate due to the difference in hardness, shape and position of the bone, which not only affects the accuracy of the operation but also may cause additional harm to the patient, thereby improving the accuracy and safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a bone positioning needle for orthopedic surgery proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the hollow tube structure of a bone positioning needle for orthopedic surgery proposed by the utility model;

[0019] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a hollow tube of a bone locating needle for orthopedic surgery.

[0020] Legend:

[0021] 1. Hollow cylinder; 2. Scale; 3. Anti-slip sleeve; 4. Support plate; 5. Support column; 6. Rotating plate; 7. Spring 1; 8. Sliding column; 9. Support block; 10. Fixed plate; 11. Sliding plate; 12. Hollow block; 13. Handle; 14. Spring 2; 15. Fixed column; 16. Locating pin; 17. Locating needle body; 18. Locating hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 and Figure 2 , the utility model provides an embodiment: a bone positioning needle for orthopedic surgery, comprising a hollow tube 1, the outer wall of the hollow tube 1 is fixedly connected with a scale 2, the outer wall of the hollow tube 1 is slidably connected with an anti-slip sleeve 3, the outer wall of the hollow tube 1 is fixedly connected with a support plate 4, the upper surface of the support plate 4 is in contact with the lower surface of the anti-slip sleeve 3, the upper surface of the support plate 4 is fixedly connected with a support column 5, the outer wall of the support column 5 is rotatably connected with a rotating plate 6, the upper surface of the rotating plate 6 is fixedly connected with one end of a spring 7, the rotating plate 6 is slidably connected with a sliding column 8 inside, the spring 7 is fixedly connected to one side of the sliding column 8, the sliding column 8 is slidably connected inside the anti-slip sleeve 3, and the outer wall of the hollow tube 1 is provided with a support assembly;

[0024] Specifically, the sliding post 8 is slid inside the rotating plate 6. The purpose of this operation is to allow the sliding post 8 to drive the spring 1 7 to extend. When the spring 1 7 is extended, the sliding post 8 will move out from the anti-slip sleeve 3. At this time, the position of the anti-slip sleeve 3 is no longer fixed by the sliding post 8, and it can be easily removed from the hollow cylinder 1. The function of the rotating plate 6 is to prevent it from blocking the movement of the anti-slip sleeve 3 when replacing or cleaning the anti-slip sleeve 3. After the position of the rotating plate 6 is adjusted, it can ensure that the anti-slip sleeve 3 slides out smoothly on the outer wall of the hollow cylinder 1. After the worn and aged anti-slip sleeve 3 is removed, It can be replaced or cleaned. When cleaning, please use a mild detergent and make sure there is no stain or moisture after drying. Place the cleaned or replaced anti-slip cover 3 on the outer wall of the hollow tube 1, and pay attention to aligning the snap-fit ​​holes of the anti-slip cover 3 to ensure a secure installation. At the position of the rotating plate 6, pull the sliding column 8 again. The purpose of this operation is to fix the anti-slip cover 3 on the hollow tube 1. When the sliding column 8 is pulled to the appropriate position, release the sliding column 8. At this time, the spring 7 will shrink due to the stretching, thereby firmly fixing the anti-slip cover 3 on the hollow tube 1.

[0025] Reference Figure 1 and Figure 3 The support assembly includes a support block 9, the support block 9 is fixedly connected to the outer wall of the hollow cylinder 1, the support column 5 is fixedly connected to the upper surface of the support block 9, the side wall of the support block 9 is fixedly connected to a fixed plate 10, the fixed plate 10 is slidably connected to a sliding plate 11, the side wall of the sliding plate 11 is rotatably connected to a hollow block 12, and the upper surface of the hollow block 12 is fixedly connected to a handle 13;

[0026] Specifically, the function of the support block 9 is to provide additional stable support, the function of the support column 5 is to further strengthen the support structure, and the existence of the sliding plate 11 allows the position of the support block 9 to be fine-tuned according to the specific situation to ensure the best operating effect and stability. The doctor controls the position and movement of the sliding plate 11 through the handle 13, thereby achieving precise control of the support block 9. The existence of the handle 13 allows the doctor to easily adjust the position of the support block 9 to meet the specific needs during the operation and ensure the accuracy and stability of the bone positioning needle.

[0027] Reference Figure 1 and Figure 3The side wall of the sliding plate 11 is fixedly connected with a positioning pin 16, and the hollow cylinder 1 is slidably connected with a positioning needle body 17. The positioning pin 16 and the outer wall of the sliding plate 11 are provided with a spring 2 14, and one end of the spring 2 14 is fixedly connected to the side wall of the fixed plate 10. The outer wall of the hollow cylinder 1 is fixedly connected with a fixing column 15, and the positioning pin 16 is slidably connected to the inside of the fixing column 15. A plurality of positioning holes 18 are opened inside the positioning needle body 17, and the positioning pin 16 is slidably connected to the inside of the positioning hole 18. The positioning pin 16 is slidably connected to the inside of the hollow cylinder 1;

[0028] Specifically, the role of the sliding plate 11 is crucial. Its sliding process will drive the positioning pin 16 to slide inside the hollow tube 1 and the positioning needle body 17. In this process, the movement of the positioning pin 16 is not performed alone, it will also affect the movement of the fixed column 15. When the fixed column 15 moves, it will compress the spring 2 14 to shrink it. The shrinkage of the spring 2 14 is not meaningless. It is actually an important adjustment mechanism. When the hollow block 12 is rotated to a vertical state with the fixed plate 10, the shrinkage of the spring 2 14 will come into play. It will cause the positioning needle body 17 to produce corresponding pulling, thereby adjusting the extended length of the positioning needle body 17. After determining the specific required length, the operator can drive the positioning pin 16 to slide inside the hollow tube 1 and the positioning needle body 17 by turning the handle 13 on the lower side. This process is the process of engaging the positioning needle body 17. Once the engagement is completed, it means that the extended length of the positioning needle body 17 has been successfully adjusted.

[0029] Working principle: when the anti-slip sleeve 3 needs to be replaced or cleaned, first pull the sliding post 8 to slide inside the rotating plate 6. The movement of the sliding post 8 will pull the spring 17 to stretch it, and then the sliding post 8 will move out from the anti-slip sleeve 3, so that the sliding post 8 will no longer fix the position of the anti-slip sleeve 3, and then rotate the rotating plate 6 so that it will not block the anti-slip sleeve 3 from sliding out on the outer wall of the hollow cylinder 1. After the anti-slip sleeve 3 is removed for replacement or cleaning, the anti-slip sleeve 3 is placed on the outer wall of the hollow cylinder 1, and then the sliding post 8 is pulled and the position of the rotating plate 6 is rotated. When the locking hole of the anti-slip sleeve 3 is aligned, the sliding post 8 is released, which will make the sliding post 8 slide inside the rotating plate 6 and cause the spring 17 to contract, thereby fixing the position of the anti-slip sleeve 3. At this time, the replacement and cleaning of the anti-slip sleeve 3 are completed, and when the positioning needle body 1 needs to be adjusted 7, first pull the handle 13 to rotate it, the rotation of the handle 13 will drive the hollow block 12 to rotate on the side wall of the sliding plate 11, and will drive the sliding plate 11 to slide inside the fixed plate 10, the sliding of the sliding plate 11 will drive the positioning pin 16 to slide inside the hollow tube 1 and the positioning needle body 17, the sliding of the positioning pin 16 will drive the fixing column 15 to move, the movement of the fixing column 15 will squeeze the spring 2 14 to shrink it, when the hollow block 12 is rotated to a vertical state with the fixing plate 10, the positioning needle body 17 can be pulled to adjust the extended length of the positioning needle body 17, when the specific required length is determined, the positioning pin 16 is driven to slide inside the hollow tube 1 and the positioning needle body 17 by rotating the handle 13 on the lower side, and the positioning needle body 17 is engaged, and the adjustment of the extended length of the positioning needle body 17 is completed.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bone positioning needle for orthopedic surgery, comprising a hollow tube (1), characterized in that: The outer wall of the hollow cylinder (1) is fixedly connected with a scale (2), the outer wall of the hollow cylinder (1) is slidably connected with an anti-slip sleeve (3), the outer wall of the hollow cylinder (1) is fixedly connected with a support plate (4), the upper surface of the support plate (4) is in contact with the lower surface of the anti-slip sleeve (3), the upper surface of the support plate (4) is fixedly connected with a support column (5), the outer wall of the support column (5) is rotatably connected with a rotating plate (6), the upper surface of the rotating plate (6) is fixedly connected with one end of a spring (7), the interior of the rotating plate (6) is slidably connected with a sliding column (8), the spring (7) is fixedly connected to one side of the sliding column (8), the sliding column (8) is slidably connected to the interior of the anti-slip sleeve (3), and the outer wall of the hollow cylinder (1) is provided with a support assembly.

2. The bone positioning needle for orthopedic surgery according to claim 1, characterized in that: The support assembly comprises a support block (9), the support block (9) is fixedly connected to the outer wall of the hollow cylinder (1), and the support column (5) is fixedly connected to the upper surface of the support block (9).

3. The bone positioning needle for orthopedic surgery according to claim 2, characterized in that: A fixed plate (10) is fixedly connected to the side wall of the support block (9), and a sliding plate (11) is slidably connected inside the fixed plate (10).

4. The bone positioning needle for orthopedic surgery according to claim 3, characterized in that: The side wall of the sliding plate (11) is rotatably connected to a hollow block (12), and the upper surface of the hollow block (12) is fixedly connected to a handle (13).

5. The bone positioning needle for orthopedic surgery according to claim 4, characterized in that: A positioning pin (16) is fixedly connected to the side wall of the sliding plate (11), and a positioning needle body (17) is slidably connected inside the hollow cylinder (1).

6. The bone positioning needle for orthopedic surgery according to claim 5, characterized in that: The positioning pin (16) and the outer wall of the sliding plate (11) are provided with a second spring (14), one end of the second spring (14) is fixedly connected to the side wall of the fixed plate (10), and the outer wall of the hollow cylinder (1) is fixedly connected to a fixing column (15).

7. The bone positioning needle for orthopedic surgery according to claim 6, characterized in that: The positioning pin (16) is slidably connected to the interior of the fixing column (15), and a plurality of positioning holes (18) are provided inside the positioning pin body (17).

8. The bone positioning needle for orthopedic surgery according to claim 7, characterized in that: The positioning pin (16) is slidably connected inside the positioning hole (18), and the positioning pin (16) is slidably connected inside the hollow cylinder (1).

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