Adjustable multifunctional reduction device for lower limb fracture intramedullary nail

By designing a controllable multifunctional reduction device, the problem of assistant physical consumption during the reduction of intramedullary nails in the lower limb fracture is solved, and the operation stability and convenience is improved, ensuring the accurate positioning of intramedullary nails and the correct needle entry direction.

CN223041767UActive Publication Date: 2025-07-01AFFILIATED ZHONGSHAN HOSPITAL OF DALIAN UNIV
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Patent Information

Application Number
CN202421685895.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-16
Publication Date
2025-07-01
Estimated Expiration
2034-07-16

AI Technical Summary

Technical Problem

In clinical practice, there is a lack of effective reduction devices and equipment during the reduction of intramedullary nails for long tubular bone fractures of lower limbs, which causes the assistant to consume a lot of physical strength during the control process, resulting in limb shaking and changing position, making it difficult to accurately locate the opening position of the intramedullary nail and the direction of the needle entry.

Method used

A multifunctional reset device for adjustable intramedullary nails of lower limb fractures is designed, including a support device and an adjustment device. The top of the support device is circularly arched, and the adjustment device can adjust the height, replace the position of the assistant, providing stable and appropriate support.

Benefits of technology

Through this device, the position of the assistant can be effectively replaced, the physical consumption of the assistant can be reduced, the operation stability and convenience can be improved, and the accurate positioning of intramedullary nails and the correct needle entry direction can be ensured.

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Abstract

The utility model provides a lower limb fracture intramedullary nail adjustable multifunctional reduction device, relates to the technical field of medical equipment, and comprises a supporting device and an adjusting device, the adjusting device is installed at the lower part of the supporting device, the adjusting device comprises two adjusting plates, the two adjusting plates are respectively connected with the outer side of the lower part of the supporting device, and the adjusting plates are connected with the lower part of the supporting device. Adjusting gears are arranged on the adjusting plate. The top of the supporting device is in a circular arch shape, so that the knee joint can be placed conveniently when being bent, and soft tissue of the knee joint is not damaged; meanwhile, three different heights can be adjusted through the adjusting device, and appropriate height adjustment can be conducted according to patients of different heights.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a multifunctional adjustable reduction device for intramedullary nails for lower limb fractures. Background Art

[0002] At present, there are no relevant reduction devices and instruments for the reduction of intramedullary nails during the clinical treatment of long tubular bone fractures of the lower limbs. Mainly, the assistant holds and flexes the knee joint throughout the process. However, this will cause the assistant to consume a lot of physical strength and experience physical exhaustion, resulting in shaking and position change of the limb during the holding process, making it difficult for the surgeon to accurately locate the opening position and the direction of needle insertion of the intramedullary nail.

[0003] Therefore, in combination with the deficiencies in clinical practice, we invented and designed this multifunctional adjustable reduction device for intramedullary nails of the lower limbs. This device can adjust the height to replace the position of the assistant, and has the advantages of stable operation, convenience, and saving the physical strength of the assistant. Summary of the Utility Model

[0004] The utility model provides a multifunctional adjustable reduction device for intramedullary nails for lower limb fractures, which solves the problem of physical strength consumption caused by manual holding during the reduction of intramedullary nails for long tubular bone fractures of the lower limbs in the existing clinical practice.

[0005] To achieve the above objectives, the technical solution adopted by the utility model is:

[0006] A multifunctional adjustable reduction device for intramedullary nails for lower limb fractures includes a support device and an adjustment device. The adjustment device is installed at the lower part of the support device. The adjustment device includes two adjustment plates, and the two adjustment plates are respectively connected to the outer sides of the lower part of the support device. There are adjustment gears on the adjustment plates.

[0007] Further, the top of the support device is arch-shaped, and the angle of the arch is 45 degrees.

[0008] Further, a support plate is provided at the lower part of the support device.

[0009] Further, there are three heights for the adjustment gears on the adjustment plates. The lowest fixed height is 450 mm, and the three heights are 450 mm, 500 mm, and 550 mm respectively.

[0010] Further, there are hole positions on the support device that cooperate with the adjustment gears.

[0011] Further, the adjustment gears and the hole positions are fixed by metal bolts.

[0012] The beneficial effects of the utility model are as follows:

[0013] The top of the support device of the present utility model is in a circular arch shape, which is beneficial for placement when the knee joint is flexed and does not damage the soft tissues of the knee joint. At the same time, the adjustment device can adjust three different heights, and can adjust the appropriate height for patients of different heights.

[0014] The present utility model can replace the position of an assistant, and has the advantages of stable operation, convenience, and saving the physical strength of the assistant. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the device of the present utility model.

[0017] Figure 2 It is the front view of the adjustment device in the present utility model.

[0018] Figure 3 It is the bottom view of the adjustment device in the present utility model.

[0019] Figure 4 It is the bottom view of the device of the present utility model.

[0020] Explanation of the reference numerals in the drawings:

[0021] 1. Support device; 2. Adjustment device; 3. Support plate; 4. Adjustment plate; 5. Adjustment gear; 6. Metal bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine the embodiments to detail the present utility model.

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of them. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present utility model and its application or use. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be clear that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present utility model: the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0027] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship between a device or feature shown in a figure and other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure for the device. For example, if the device in the attached figure is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "beneath" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0028] In addition, it should be noted that the use of terms such as "first", "second" etc. to define components is only for the convenience of differentiating the corresponding components. Without additional statements, these terms have no special meanings, and thus should not be construed as limiting the protection scope of the present utility model.

[0029] The present utility model provides a technical solution: a multifunctional adjustable reduction device for intramedullary nails for lower limb fractures, as Figures 1-4 shown, comprising a support device 1 and an adjustment device 2. The top of the support device 1 is in a circular arch shape, with an angle of 45 degrees for the circular arch, and the length, width, and height being 30 cm × 20 cm × 45 cm. A support plate 3 is provided at the lower part of the support device 1;

[0030] The adjustment device 2 is installed at the lower part of the support device 1. The adjustment device 2 includes two adjustment plates 4, and the two adjustment plates 4 are respectively connected to the outer sides of the lower part of the support device 1. There are adjustment positions 5 on the adjustment plates 4; the adjustment positions 5 have three heights, with the lowest fixed height being 450 mm, and the three heights being 450 mm, 500 mm, and 550 mm respectively

[0031] There are hole positions on the support device 1 that cooperate with the adjustment positions 5; the adjustment positions 5 and the hole positions are fixed by metal bolts 6.

[0032] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A multifunctional adjustable reduction device for intramedullary nailing of lower limb fractures, characterized in that: The invention comprises a supporting device (1) and an adjusting device (2), wherein the adjusting device (2) is mounted at the lower part of the supporting device (1), and the adjusting device (2) comprises two adjusting plates (4), wherein the two adjusting plates (4) are respectively connected to the outer side of the lower part of the supporting device (1), and the adjusting plates (4) are provided with adjusting gears (5).

2. The adjustable multifunctional intramedullary nail reduction device for lower limb fractures according to claim 1, characterized in that: The top of the supporting device (1) is in the shape of a round arch, and the angle of the round arch is 45 degrees.

3. The adjustable multifunctional intramedullary nail reduction device for lower limb fractures according to claim 1 or 2, characterized in that: A supporting plate (3) is provided at the lower part of the supporting device (1).

4. The adjustable multifunctional intramedullary nail reduction device for lower limb fractures according to claim 1, characterized in that: The adjustment gear (5) on the adjustment plate (4) has three heights, the lowest fixed height is 450 mm, and the three heights are 450 mm, 500 mm, and 550 mm respectively.

5. The adjustable multifunctional intramedullary nail reduction device for lower limb fractures according to claim 4, characterized in that: The support device (1) is provided with a hole that matches the adjustment gear (5).

6. The adjustable multifunctional intramedullary nail reduction device for lower limb fractures according to claim 5, characterized in that: The adjustment gear position (5) and the hole position are fixed by a metal bolt (6).