Improved knee joint external fixation brace

Abstract

The utility model provides an improved knee joint external fixation brace, which relates to the technical field of auxiliary medical instruments, and comprises a knee joint fixer worn on the leg of a human body, and the upper end of the knee joint fixer is provided with a plurality of first connecting pieces; the extension belt part is mounted above the knee joint fixator and comprises a plurality of elastic belts extending vertically, first matching pieces are arranged at the lower ends of the elastic belts and detachably connected with the first connecting pieces in a one-to-one correspondence mode, second connecting pieces are arranged at the upper ends of the elastic belts, and the second connecting pieces are configured to be detachably connected to the waist position of the human body.

Description

Technical Field

[0001] This utility model relates to the field of assistive medical device technology, and more specifically, to a knee joint fixation brace. Background Technology

[0002] In existing technologies, knee fixation braces primarily rely on the ring-shaped band structure attached to the brace itself, and the friction between the brace and the muscles. Therefore, when muscles contract or atrophy due to prolonged immobilization caused by a fracture, the previously adjusted tightness may loosen, leading to brace slippage and affecting its immobilization and protective effects. This could even cause secondary injury to the knee fracture site. Simultaneously, when muscles relax or the adjustment band is too tight, leg muscles may be compressed, causing discomfort. Excessive pressure can even impair blood circulation, negatively impacting fracture healing. Utility Model Content

[0003] The purpose of this invention is to provide an improved external fixation brace for the knee joint to solve the problems of inconvenient fixation and side effects of current braces.

[0004] To address the aforementioned problems, this utility model first provides an improved external fixation brace for the knee joint, comprising: a knee joint fixator worn on the human leg, with a plurality of first connecting members at its upper end; an extension band installed above the knee joint fixator, comprising a plurality of vertically extending elastic bands, with a first mating member at the lower end of each elastic band, the first mating member being detachably connected to the first connecting members in a one-to-one correspondence, and a second connecting member at the upper end of each elastic band, the second connecting member being configured to be detachably connected to the human waist.

[0005] This design incorporates a first connector on the knee fixator that connects to the first mating component, allowing the lower end of the extension strap to connect to the knee fixator. A second connecting strap is located at the upper end of the elastic band, enabling it to be mounted on the waist. This allows the upper end of the extension strap to be mounted on the waist, generating upward tension from the waist and using the extension strap to provide upward support to the knee fixator. This improves upon current knee fixators that primarily rely on friction between the fixator and the leg for secure fastening, which can cause discomfort. The improved design uses upward tension to reduce friction between the fixator and the leg, providing better fixation and reducing discomfort during wear, thus enhancing the user experience.

[0006] Furthermore, it also includes a lumbar support, which is worn in a ring around the waist of the human body, and its lower end is provided with several second fitting parts. The second connecting parts correspond one-to-one with the second fitting parts and can be detachably connected.

[0007] Furthermore, it also includes a shoulder support section, worn on the upper body, including a connected front shoulder strap, a connecting shoulder strap, and a back strap; the connecting shoulder strap is worn on the shoulder; the front shoulder strap is elastic, with its upper end connected to the connecting shoulder strap and its lower end extending downward along the chest, and a third connector is provided at its lower end; the back strap is elastic, with its upper end connected to the connecting shoulder strap and its lower end extending downward along the back, and a third connector is provided at its lower end; the upper front and back portions of the waist support section are each provided with a third fitting, and the third connector is detachably connected to each of the third fittings.

[0008] Furthermore, each of the elastic bands includes multiple elastic sub-bands branching out from the upper end, the second mating member is located at the upper end of the elastic band before it branches out, and the first mating member is located at the lower end of each of the elastic sub-bands.

[0009] Furthermore, the elastic band is characterized by having an adjustment member, through which the length of the elastic band can be adjusted.

[0010] Furthermore, both the front shoulder strap and the rear shoulder strap are equipped with adjustment components, which can be used to adjust the length of the front shoulder strap or the rear shoulder strap.

[0011] Furthermore, both the rear shoulder strap and the front shoulder strap are provided with at least two straps.

[0012] Furthermore, the knee joint fixator includes a thigh fixator and a calf fixator. The thigh fixator has a first connecting plate on its side, and the calf fixator has a second connecting plate on its side. The first connecting plate and the second connecting plate are hinged together. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the external fixation brace for the knee joint provided in Embodiment 1 of this utility model;

[0015] Figure 2 This is a schematic diagram of the external fixation brace for the knee joint provided in Embodiment 2 of this utility model;

[0016] Figure 3 This is a schematic diagram of the external fixation brace for the knee joint provided in Embodiment 3 of this utility model;

[0017] Figure 4 This is a schematic diagram of the shoulder support structure provided in Embodiment 3 of this utility model;

[0018] Figure 5 This is a schematic diagram of the lumbar support structure provided in Embodiment 3 of this utility model;

[0019] Figure 6 This is a schematic diagram of the extension belt structure provided in Embodiment 3 of this utility model;

[0020] Figure 7 This is a schematic diagram of the knee joint fixation device provided in Embodiment 4 of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 100 - Knee joint fixator; 110 - First connector; 120 - Thigh fixator; 121 - First connecting plate; 130 - Lower leg fixator; 131 - Second connecting plate;

[0023] 200 - Extension belt section; 210 - Elastic belt; 211 - First mating part; 212 - Second connecting part; 220 - Elastic branch belt; 230 - Adjusting part;

[0024] 300 - Lumbar support; 310 - Second mating part; 320 - Third mating part;

[0025] 400 - Shoulder support; 410 - Front shoulder strap; 420 - Connecting shoulder strap; 430 - Back shoulder strap; 440 - Third connector. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0027] Existing external fixation braces for knee fractures primarily rely on adjustable straps on the fixation brace for immobilization. During use, to ensure accurate fixation and prevent slippage, the adjustable straps often need to be tightened more, which may compress the leg muscles, causing discomfort, or even affecting blood circulation and slowing bone healing. Conversely, when the adjustable straps are adjusted to a moderate tightness, muscle contraction or muscle atrophy due to prolonged inactivity may cause the brace to slip, necessitating frequent manual adjustments.

[0028] Example 1

[0029] To address the aforementioned problems, this embodiment provides an improved external fixation brace for the knee joint, such as... Figure 1As shown, the upper end of the knee joint fixator is provided with multiple first connectors. In this embodiment, buckles are used. After the knee joint fixator is worn on the human leg, an extension strap can be detachably connected to it. The extension strap can be provided with multiple elastic bands. The lower end of the elastic band is provided with a first mating part that can be detachably connected to the first connectors, for example... Figure 1 The buckle shown can also be a button, snap fastener, or Velcro; the specific detachable connection structure can be selected according to needs. A second connector is located above the elastic band, extending upwards to the waist. The upper part of the elastic band can be detachably connected to the waist via the second connector, for example, by clipping it to the waistband. To ensure balanced force distribution, multiple elastic bands can be installed, for example, connecting upward-extending elastic bands to both the front and back of the knee joint fixator.

[0030] Although the elastic bands mentioned above are elastic and can be adjusted to a certain extent, in order to improve the adaptability of this brace, adjustment components, such as D-rings, can be set on the elastic bands to make the length of the elastic bands more adjustable, increase the adjustment range, and better meet the needs of different users.

[0031] This design allows the upper end of the extension strap to be installed around the waist, generating upward force from the waist and using the extension strap to provide upward tension to the knee fixation device. This improves upon the current technology where knee fixation devices primarily rely on friction between the device and the leg for clamping and fixation, which can easily cause discomfort when worn. The improved design uses upward tension to hold the knee fixation device in place, reducing friction between the device and the leg while still providing better fixation. This reduces discomfort during wear and enhances the user experience.

[0032] Example 2

[0033] To facilitate the connection of the extension belt in Embodiment 1, a waist support section is also provided, such as... Figure 2 As shown, it is a ring-shaped band that can be worn around the waist. Preferably, the ring-shaped band can be attached using Velcro, for example... Figure 2 As shown in the middle side section, it is convenient to wear around the waist. Multiple second fitting parts are provided at the lower end of the waist support. The second fitting parts can be detachably connected to the second connecting parts. In this embodiment, the connection is made by buckle. The specific connection method is not limited. It is the same as the principle of the first connecting part and the first fitting part in embodiment 1. The specific structure can be selected by oneself.

[0034] Compared to the upper end fixing method of the extension belt in Embodiment 1, this embodiment is more convenient, and the waist support can provide a more stable upward pulling force after being worn around the waist, thus improving comfort.

[0035] Preferably, each elastic band includes multiple elastic sub-bands branching out from the upper end. In this embodiment, there are two elastic sub-bands. The second mating member is located at the upper end of the elastic band before it branches out, and the first mating member is located at the lower end of each elastic sub-band.

[0036] Example 3

[0037] Preferably, based on embodiment 2, a detachable shoulder support is also provided above the lumbar support, such as... Figure 4 As shown, the device is worn on the upper body and includes a connected front shoulder strap, connecting shoulder straps, and a rear shoulder strap. The overall structure of the device is as follows: Figure 3 As shown; the connecting shoulder strap is worn on the human shoulder; both the front and back straps are elastic, with their upper ends connected to the connecting shoulder straps at the front and back respectively, and their lower ends extending downwards along the chest and back respectively, and each has a third connecting piece at the lower end, which is the same principle as in Embodiment 1. In order to improve the range and convenience of length adjustment, it is preferable to set adjustment pieces, such as D-ring buckles, on the front and back straps; a third fitting piece is provided on the front and back sides above the waist support, and the third fitting piece can be detachably connected to the third connecting piece of the front and back straps.

[0038] The shoulder support structure in this embodiment is as follows: Figure 4 As shown, the lumbar support section has a separate structure as follows: Figure 5 As shown, the extended belt structure is as follows Figure 6 As shown, the structure of the waist support and extension belt is the same as that in the two embodiments above.

[0039] To ensure even force distribution, both the back and front shoulder straps are provided with at least two straps. Compared to Embodiment 2, this embodiment does not only rely on the lumbar support for force but also includes a shoulder support above it that can provide upward pulling force from the shoulders, thus distributing the force on the waist and reducing discomfort when wearing it.

[0040] Example 4

[0041] Further improvements to the knee joint fixator in the above embodiments are made if fixators are needed for both the thigh and lower leg, such as... Figure 7 As shown, the thigh fixator has a first connecting plate on its side, and the calf fixator has a second connecting plate on its side. The first and second connecting plates are hinged together. This allows for moderate movement at the knee joint.

[0042] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0043] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An improved knee joint external fixator characterized in that, The knee joint fixator is worn on the leg of a human body, and a plurality of first connecting members are arranged on the upper end of the knee joint fixator. The extension belt part is arranged above the knee joint fixator, and comprises a plurality of vertically extending elastic belts. The lower end of each elastic belt is provided with a first matching member, and the first matching member is detachably connected with the first connecting member in one-to-one correspondence. The upper end of each elastic belt is provided with a second connecting member, and the second connecting member is configured to be detachably connected to the waist position of the human body. The waist supporting part is annular and worn on the waist of the human body. The lower end of the waist supporting part is provided with a plurality of second matching members, and the second connecting member is detachably connected with the second matching member in one-to-one correspondence.

2. The improved knee orthosis according to claim 1, wherein, The shoulder supporting part is worn on the upper body of the human body and comprises a front back belt, a connecting shoulder belt and a rear back belt which are connected with each other. The connecting shoulder belt is arranged on the shoulder of the human body. The front back belt is elastic, and the upper end of the front back belt is connected with the connecting shoulder belt. The lower end of the front back belt extends downward along the front chest of the human body and is worn. The lower end of the front back belt is provided with a third connecting member. The rear back belt is elastic, and the upper end of the rear back belt is connected with the connecting shoulder belt. The lower end of the rear back belt extends downward along the connecting shoulder belt along the back of the human body and is worn. The lower end of the rear back belt is provided with a third connecting member.

3. The improved knee orthosis according to claim 2, wherein, The upper end of the waist supporting part is provided with a third matching member on the front surface and the back surface. The third connecting member is detachably connected with the third matching member in one-to-one correspondence. Each elastic belt comprises a plurality of elastic sub-belts which are branched from the upper end of the elastic belt. The second matching member is arranged at the upper end of the elastic belt which is not branched. The first matching member is arranged at the lower end of each elastic sub-belt.

4. The improved knee orthosis according to claim 3, wherein, An adjusting member is arranged on the elastic belt, and the length of the elastic belt can be adjusted by the adjusting member.

5. The improved knee joint external fixator according to any one of claims 1-4, characterized in that, An adjusting member is arranged on the front back belt and the rear back belt, and the length of the front back belt or the rear back belt can be adjusted by the adjusting member.

6. The improved knee orthosis according to claim 3, wherein, The rear back belt and the front back belt are each provided with at least two elastic belts.

7. The improved knee orthosis according to claim 3, wherein, The knee joint fixator comprises a thigh fixator and a calf fixator. The side edge of the thigh fixator is provided with a first connecting plate, and the side edge of the calf fixator is provided with a second connecting plate. The first connecting plate and the second connecting plate are hingedly connected.

8. The improved knee joint external fixator according to any one of claims 1-3, wherein, ​

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