Limb fixing mechanism for hand and foot microsurgery

By designing a retractable limb fixation mechanism, and utilizing a combination of a movable support frame and a fixed support frame, the problem of complex operation in existing technologies is solved, achieving simplified operation and fixation effects that adapt to different limb shapes.

CN224251507UActive Publication Date: 2026-05-19THE SIXTH AFFILIATED HOSPITAL OF XINJIANG MEDICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE SIXTH AFFILIATED HOSPITAL OF XINJIANG MEDICAL UNIV
Filing Date
2025-01-27
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In current hand and foot microsurgery, the process of limb fixation by wrapping the limb with bandages and connecting it to a fixation support frame is relatively complicated and involves many steps.

Method used

A limb fixation mechanism comprising a movable support frame and a fixed support frame was designed. It utilizes a telescopic fixing rod and a fixing strip made of soft cotton cloth, and achieves rapid fixation by adjusting the screw and lifting block, adapting to different limb sizes.

Benefits of technology

It simplifies the operation process, reduces space occupation, improves fixation efficiency, adapts to different patients' limb shapes, and is convenient and skin-friendly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a limb fixing mechanism for hand and foot microsurgery, and belongs to the technical field of hand and foot microsurgery. Comprising a movable supporting frame, a fixed supporting frame and a fixing rod, the movable supporting frame makes contact with the fixed supporting frame, the fixing rod in the horizontal state is arranged on the upper surface, the two ends of the fixing rod are fixedly connected with sliding blocks respectively, and the sliding blocks and the fixing rod are vertically distributed; supporting columns are arranged on the outer wall of the movable supporting frame and the outer wall of the fixed supporting frame in a protruding mode and are vertically arranged, and the sliding blocks slide into the supporting columns along the upper surfaces of the supporting columns. An inner sliding groove is formed in the face, facing the movable supporting frame, of the fixed supporting frame, an inner sliding plate is fixedly connected to the face, facing the fixed supporting frame, of the movable supporting frame, the inner sliding plate and the inner sliding groove are installed in a matched and sliding mode, and the bottom end face of the fixing rod is of an inwards-concave arc-shaped structure and fixedly adheres to a fixing strip. By means of the telescopic arrangement of the movable supporting frame and the fixed supporting frame, the movable supporting frame and the fixed supporting frame are unfolded and fixed in use, and the size and occupied space can be reduced when the movable supporting frame and the fixed supporting frame are not used.
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Description

Technical Field

[0001] This utility model relates to the field of hand and foot microsurgery, and in particular to a limb fixation mechanism for hand and foot microsurgery. Background Technology

[0002] Hand and foot microsurgery includes finger replantation, finger reconstruction, treatment of various hand injuries, correction of congenital hand deformities, orthopedic internal and external fixation, tendon, nerve, and vascular repair, as well as various flap wound covering and cosmetic finger procedures. These surgeries typically require careful microscopic manipulation to ensure precision and success. The outcome of hand and foot microsurgery usually depends on multiple factors, including surgical timing, surgical technique, postoperative care, and individual patient differences. Currently, limb immobilization mechanisms are needed to limit limb movement during surgery. Existing technologies typically use straps and a fixation support frame to bind the limb. The fixation support frame is placed under the limb, and the limb is then wrapped with straps to connect it to the fixation support frame, thus limiting limb movement. This process is cumbersome and involves many steps. Therefore, this application provides a limb immobilization mechanism for hand and foot microsurgery to meet this need. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a limb fixation mechanism for hand and foot microsurgery to solve the problem that the existing method of binding the limb with straps and connecting it to a fixed support frame to limit the limb is relatively complicated and involves many steps.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A limb fixation mechanism for hand and foot microsurgery includes a movable support frame, a fixed support frame, and a fixing rod. The movable support frame and the fixed support frame are in contact with each other, and the upper surface of the movable support frame is provided with a horizontally positioned fixing rod. Slider blocks are fixedly connected to both ends of the fixing rod, and the sliders are vertically distributed with the fixing rod. Support columns protrude from the outer walls of the movable support frame and the fixed support frame, and the support columns are vertically arranged. The sliders slide inward along the upper surface of the support columns. The fixed support frame has an inner sliding groove on the surface facing the movable support frame, and an inner sliding plate is fixedly connected to the surface of the movable support frame facing the fixed support frame. The inner sliding plate is adapted to slide in the inner sliding groove.

[0006] Optionally, the bottom end face of the fixing rod has an inwardly concave arc-shaped structure, and a fixing strip is fixedly bonded to the bottom end face.

[0007] Optionally, the fixing strip is arranged in an arc shape to fit the fixing rod, and the fixing strip is made of soft cotton cloth.

[0008] Optionally, a limit hole is provided on the outer wall of the movable support frame.

[0009] Optionally, an installation block is fixedly installed on the outer wall of the fixed support frame, and an extension block protrudes from the surface of the installation block facing the movable support frame.

[0010] Optionally, the extension block slides through a limiting buckle, and the limiting buckle is adapted to engage with a limiting hole.

[0011] Optionally, a lifting groove is vertically formed on the outer wall of the support column, and a lifting block slides through the inside of the lifting groove.

[0012] Optionally, one end of the lifting block passes through the lifting groove and is fixedly connected to the bottom end face of the slider, while the other end is threadedly connected to an adjusting screw.

[0013] Optionally, the adjusting screw is vertically arranged on the outside of the support column, and fixing blocks are respectively installed and connected to the top and bottom of the adjusting screw.

[0014] Optionally, the fixing block is fixedly connected to the outer wall of the support column, and the fixing blocks are spaced apart on the upper and lower sides of the lifting groove.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects:

[0016] In the above solution, thanks to the retractable design of the mobile and fixed support frames, they can be unfolded and fixed when in use, and their size can be reduced when not in use, minimizing space occupation. After unfolding, the patient's limb can be passed through, and then the fixing rod can be quickly adjusted and moved down, with the fixing rod being forcefully moved towards the patient's limb and making contact with it. At this time, the fixing strip is in contact with the patient's limb. The fixing strip is made of soft cotton cloth, which is more skin-friendly. Since the fixing rods on the fixed and mobile support frames can be operated independently, they can be adapted to different limb sizes to meet usage needs. Attached Figure Description

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0018] Figure 1 A three-dimensional structural diagram of a limb fixation mechanism for hand and foot microsurgery.

[0019] Figure 2 A three-dimensional structural diagram showing the unfolded state of the movable support frame and the fixed support frame;

[0020] Figure 3 for Figure 2 Enlarged 3D structural diagram at point A;

[0021] Figure 4 for Figure 2 Enlarged structural diagram at point B.

[0022] [Figure Labels]

[0023] 1. Movable support frame; 2. Adjusting screw; 3. Fixing block; 4. Support column; 5. Mounting block; 6. Fixing strip; 7. Fixing rod; 8. Sliding block; 9. Fixed support frame; 10. Limiting hole; 12. Inner sliding plate; 13. Limiting buckle; 14. Extension block; 15. Lifting block; 16. Lifting groove.

[0024] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0025] The following is a detailed description of a limb fixation mechanism for hand and foot microsurgery provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0026] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0027] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0028] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0029] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0030] like Figure 1 and Figure 2 As shown, this embodiment of the present invention provides a limb fixation mechanism for hand and foot microsurgery, including a movable support frame 1, a fixed support frame 9, and a fixing rod 7. The ends of the movable support frame 1 and the fixed support frame 9 are in contact with each other, and a horizontal fixing rod 7 is provided above them. Slider blocks 8 are fixedly connected to both ends of the fixing rod 7, and the sliders 8 and the fixing rod 7 are vertically distributed. Support columns 4 protrude from the outer walls of the movable support frame 1 and the fixed support frame 9, respectively. The support columns 4 are vertically arranged, and the sliders 8 are slidably mounted on the support columns 4, sliding inward along the top of the support columns 4. The fixed support frame 9 has an inner groove on the surface facing the movable support frame 1, and an inner sliding plate 12 is fixedly connected to the surface of the movable support frame 1 facing the fixed support frame 9. The inner sliding plate 12 is adapted to slide in the inner groove. The bottom end of the fixing rod 7 has an upwardly convex arc-shaped structure, and a fixing strip 6 is fixedly adhered to the bottom end. The fixing strip 6 is arc-shaped and made of soft cotton cloth. A limiting hole 10 is provided on the outer wall of the movable support frame 1. A mounting block 5 is fixedly installed on the outer wall of the fixed support frame 9, and an extension block 14 protrudes from the surface of the mounting block 5 facing the movable support frame 1. An adjusting screw 2 is vertically arranged on the outside of the support column 4, and two fixing blocks are provided on the support column 4. The upper and lower parts of the adjusting screw 2 are respectively installed in the fixing blocks 3, which are spaced apart on the upper and lower sides of the lifting groove 16. Specifically, a blind hole is provided in the lower fixing block 3, and a through hole is provided in the upper fixing block 3. The lower part of the adjusting screw 2 is inserted into the blind hole of the lower fixing block 3, and the upper part passes through the through hole of the upper fixing block 3.

[0031] like Figure 3As shown, the extension block 14 slides through the limiting buckle 13. Limiting holes 10 are provided on both the movable support frame 1 and the inner slide plate 12, and the limiting buckle 13 is adapted to engage with the limiting hole 10. Specifically, the limiting buckle 13 can be inserted into or removed from the limiting hole 10. More specifically, the extension block 14 has a limiting hole 10. When the limiting hole 10 of the movable support frame 1 is aligned with the limiting hole 10 of the extension block 14, the limiting buckle 13 is inserted into the limiting hole 10; when the limiting hole 10 of the movable support frame 1 is aligned with the limiting hole 10 of the inner slide plate 12, the limiting buckle 13 is inserted into the limiting hole 10.

[0032] like Figure 4 As shown, a lifting groove 16 is vertically provided on the outer wall of the support column 4. A lifting block 15 slides through the inside of the lifting groove 16, and the top of the lifting block 15 is connected to the bottom of the slider 8. One end of the lifting block 15 passes through the lifting groove 16 and is fixedly connected to the bottom end face of the slider 8. The lifting block 15 is provided with an internal thread, and the lifting block 15 is screwed onto the adjusting screw 2 through its internal thread.

[0033] The working principle of this utility model is as follows: First, the movable support frame 1 and the fixed support frame 9 are stretched out. The limiting buckle 13 is then pulled out, and as it leaves the limiting hole 10, the movable support frame 1 can slide relative to the fixed support frame 9. The inner sliding plate 12 slides out from inside the fixed support frame 9. Then, the limiting buckle 13 is engaged with the limiting hole 10 (not shown in the figure) on the outer wall of the inner sliding plate 12. The adjusting screw 2 is rotated, and its threaded engagement with the lifting block 15 causes the lifting block 15 to slide upwards along the lifting groove 16. This causes the slider 8 to rise under pressure, gradually raising the support rod. At this point, the patient is placed... The limb passes between the movable support frame 1, the fixed support frame 9, and the fixed rod 7. Then, the adjusting screw 2 is rotated, and the adjusting screw 2 rotates in the opposite direction. The lifting block 15 is subjected to force and moves down along the lifting groove 16, causing the fixed rod 7 to come into contact with the patient's limb. At this time, the fixing strip 6 comes into contact with the patient's limb. The fixing strip 6 is made of soft cotton cloth, which is more skin-friendly. It is bonded to the fixing rod 7 and can be replaced. The whole is easy to use. The fixed rod 7 above the movable support frame 1 and the fixed support frame 9 are operated separately to fix the patient's limb. The operation is convenient. The two sets of fixing rods 7 can be operated independently and can be adapted to different sizes of the patient's limb. It is highly practical and can be widely promoted.

[0034] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A limb fixation mechanism for hand and foot microsurgery, characterized in that, It includes a movable support frame, a fixed support frame, and a fixed rod. The movable support frame and the fixed support frame are in contact with each other, and the upper surface is provided with a horizontal fixed rod. The two ends of the fixed rod are respectively fixedly connected to sliders, and the sliders are vertically distributed with the fixed rod. The outer walls of the movable support frame and the fixed support frame are respectively provided with support columns protruding from them. The support columns are arranged vertically, and the slider slides into the upper surface of the support column towards its interior. The fixed support frame has an inner sliding groove on the surface facing the movable support frame, and an inner sliding plate is fixedly connected to the surface of the movable support frame facing the fixed support frame. The inner sliding plate is adapted to slide and install with the inner sliding groove.

2. The limb fixation device for hand surgery according to claim 1, wherein The bottom end face of the fixing rod has an inwardly concave arc-shaped structure, and a fixing strip is fixedly bonded to the bottom end face.

3. The limb fixation mechanism for hand surgery microsurgery according to claim 2, characterized by, The fixing strip is designed to fit the fixing rod in an arc shape, and the fixing strip is made of soft cotton cloth.

4. The limb fixation mechanism for hand surgery microsurgery according to claim 1, characterized by Limiting holes are provided on the outer wall of the movable support frame.

5. The limb fixation mechanism for hand microsurgery according to claim 4, wherein An installation block is fixedly installed on the outer wall of the fixed support frame, and an extension block protrudes from the surface of the installation block facing the movable support frame.

6. The limb fixation mechanism for hand microsurgery according to claim 5, wherein The extension block slides through a limit buckle, and the limit buckle is adapted to engage with the limit hole.

7. The limb fixation mechanism for hand microsurgery according to claim 1, wherein The outer wall of the support column is vertically provided with a lifting groove, and a lifting block slides through the inside of the lifting groove.

8. The limb fixation mechanism for hand microsurgery according to claim 7, characterized by One end of the lifting block passes through the lifting groove and is fixedly connected to the bottom end face of the slider, while the other end is threadedly connected to an adjusting screw.

9. The limb fixation mechanism for hand microsurgery according to claim 8, wherein The adjusting screw is vertically positioned on the outside of the support column, and fixing blocks are installed and connected to the top and bottom of the adjusting screw, respectively.

10. The limb fixation mechanism for hand microsurgery according to claim 9, wherein The fixing blocks are fixedly connected to the outer wall of the support column, and the fixing blocks are spaced apart on the upper and lower sides of the lifting groove.