An orthosis for immobilizing a humeral shaft fracture

Abstract

This application discloses a brace for fixing humeral shaft fractures, including a separate cuff, an elbow strap, and a forearm cuff. The separate cuff and the forearm cuff are connected by the elbow strap. The separate cuff has a layer spaced apart for placing an aluminum splint, and multiple mesh pockets on its inner side for placing pressure pads, allowing for the placement of pressure pads according to the direction of displacement to correct angular displacement. An elastic connecting band is provided in the middle of the separate cuff. This application uses a separate cuff for fixing the humeral shaft, and by placing a counterweight on the outside of the elbow strap, a downward traction force is applied to the humeral shaft from below. The elastic connecting band does not obstruct the downward movement of the second cuff, thereby correcting the shortening displacement of the humeral shaft in real time and effectively preventing re-dislocation of the humeral shaft.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, specifically relating to a brace for fixing humeral shaft fractures. Background Technology

[0002] Humeral shaft fractures are a common type of fracture seen in orthopedic outpatient and emergency departments. A key technical challenge in managing these fractures in the outpatient and emergency departments often leads to lost reduction or unsatisfactory reduction results on radiographs. Clinical practice has shown that reduction of humeral shaft fractures is not difficult, and the fixation process is not complex. The reason for unsatisfactory reduction often lies in the loss of reduction when the surgeon removes their hands from the fracture site for fixation after successful reduction.

[0003] For example, patent CN217660358U provides an external fixation device for humeral shaft fractures. This patent uses a sleeve body, splint, and pressure pad as a complete set for fixation. Patients can select a suitable sleeve body, assemble the splint and pressure pad onto the sleeve body, and then wear it. After wearing, reduction is performed, and fixation is immediately achieved through the fixation device, reducing the time required for other complex procedures and shortening the time for humeral shaft fracture reduction and fixation in outpatient and emergency departments. However, humeral shaft fractures can lead to dislocation, requiring traction on both sides for reduction. Even after reduction, without external force intervention, there is still a possibility of re-dislocation of the femoral shaft. Utility Model Content

[0004] This application provides a brace for fixing humeral shaft fractures to solve the above-mentioned technical problems.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: a brace for fixing humeral shaft fractures, including a separate cuff, an elbow strap, and a forearm cuff; the separate cuff and the forearm cuff are connected by the elbow strap; the separate cuff has a layer for placing aluminum strip splints at intervals inside, and multiple sets of mesh pockets for placing pressure pads are provided on the inner side of the separate cuff; wherein, an elastic connecting strap is provided in the middle of the separate cuff.

[0006] Furthermore, the split cuff also includes a first cuff and a second cuff, with the first cuff located above the second cuff and connected by an elastic connecting band, and the second cuff connected to the elbow strap.

[0007] Furthermore, a counterweight bag is provided on the outside of the elbow strap, and a counterweight block is placed in the counterweight bag.

[0008] Furthermore, multiple nets are arranged linearly to form a net bag belt, and multiple net bag belts are set inside the separate sleeve sleeve; the pressure pad is placed in one of the net bags.

[0009] Furthermore, the outer side of the detachable sleeve is equipped with a fixing connecting strap, and the two sides of the fixing connecting strap are connected by buckles.

[0010] Furthermore, the outer side of the forearm cuff is provided with a strap, and the strap has a connecting part for connecting the hanging strap.

[0011] The beneficial effects of this application are: the cuff for fixing the humeral shaft is set as a separate type, and then a counterweight is set on the outside of the elbow band, so that the humeral shaft can be subjected to downward traction gravity interference from below. The elastic connecting band will not hinder the downward movement of the second cuff, thereby correcting the shortening displacement of the humeral shaft in real time and effectively avoiding the recurrence of humeral shaft misalignment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a structure of an embodiment of the brace for fixing humeral shaft fractures according to this application;

[0013] Figure 2 yes Figure 1 A cross-sectional structural schematic diagram of an embodiment of the aluminum strip clamping plate;

[0014] Figure 3 yes Figure 1 A schematic diagram of the structure of an embodiment of the split sleeve inner side. Detailed Implementation

[0015] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0016] like Figure 1-3 As shown, a brace for fixing a fractured humeral shaft includes a separate cuff 1, an elbow strap 2, and a forearm cuff 3. The separate cuff 1 and the forearm cuff 3 are connected by the elbow strap 2. The separate cuff 1 has a layer 12 for placing aluminum strip splints 4 at intervals, and multiple sets of mesh pockets 6 for placing pressure pads 5 are provided on the inner side of the separate cuff 1. The separate cuff 1 has an elastic connecting strap 11 in the middle. The layer 12 in the above design is used to hold splints of different materials such as aluminum strip splints 4 to fix and reduce the humeral shaft, while different mesh pockets 6 can correspond to different parts of the humeral shaft. By selecting the corresponding mesh pocket 6 to place the pressure pad 5 according to the fracture site, the angulation displacement of the humeral shaft can be effectively corrected, facilitating the recovery of the humeral shaft.

[0017] The detachable cuff sleeve 1 also includes a first cuff sleeve 13 and a second cuff sleeve 14. The first cuff sleeve 13 is located above the second cuff sleeve 14 and is connected by an elastic connecting band 11. The second cuff sleeve 14 is connected to the elbow strap 2. In the above design, the inner surfaces of the first cuff sleeve 13 and the second cuff sleeve 14 are connected by the elastic connecting band 11, ensuring that the first cuff sleeve 13 and the second cuff sleeve 14 can be separated when there is external force interference or pulling. It should be noted that since the aluminum strip clamp 4 is sleeved in the interlayer 12 and is not fixedly installed, the interlayer 12 of the first cuff sleeve 13 and the second cuff sleeve 14 can slide along the aluminum strip clamp 4 to a limited extent without affecting the fixed clamping function of the aluminum strip clamp 4.

[0018] A counterweight bag 21 is provided on the outer side of the elbow girder 2, and a counterweight block 22 is placed in the counterweight bag 21. The counterweight bag 21 in the above design can be equipped with counterweight blocks 22 of different weights according to the actual situation, so as to effectively exert a traction effect on the lower half of the fracture through gravity and correct the femoral shaft dislocation.

[0019] Multiple mesh pockets 6 are arranged linearly to form a mesh pocket belt, which is located inside the separate cuff sleeve 1; a pressure pad 5 is placed inside one of the mesh pockets 6. The mesh pocket belt in the above design can correspond to different fracture sites, and the pressure pad 5 can be placed according to the direction of fracture displacement to correct angular displacement.

[0020] The separate cuff sleeve 1 has a fixing connecting strap 7 on its outer side, and the two sides of the fixing connecting strap 7 are connected by buckles 71. The fixing connecting strap 7 in the above design can securely wrap the separate cuff sleeve 1 around the upper arm, thereby completing the support and clamping of the humeral shaft.

[0021] The forearm cuff 3 has a strap 31 on its outer side, and the strap 31 has a connecting part 32 for connecting to the hanging strap. The forearm cuff 3 in the above design is used to place the forearm and is attached to the patient's neck by connecting the hanging strap.

[0022] The specific working principle is as follows: Based on the specific location of the humeral shaft fracture, traction is applied to both sides of the humeral shaft to bring the fracture sites together. A corresponding mesh pocket 6 is selected, and a pressure pad 5 is placed inside the mesh pocket 6, allowing the pressure pad 5 to press down on the fracture site, thus achieving reduction. Next, a separate cuff 1 is wrapped around the upper arm and secured with a fixing strap 7, completing the fixation, support, and clamping of the humeral shaft. Then, an elbow strap 2 is wrapped around the elbow, and a forearm cuff 3 is wrapped around the forearm. The forearm is then attached to the patient's neck via a connecting strap, thus fixing the entire arm. Finally, a corresponding counterweight 22 is selected based on the fracture condition, allowing gravity to continuously pull on the humeral shaft and prevent further dislocation.

[0023] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A brace for fixing a fracture of the humeral shaft, characterized in that, include: The sleeve includes a detachable sleeve cover, an elbow strap, and a forearm sleeve cover; the detachable sleeve cover and the forearm sleeve cover are connected by the elbow strap; the detachable sleeve cover has an inner layer for placing aluminum strip plates, and the inner side of the detachable sleeve cover has multiple sets of mesh pockets for placing pressure pads; wherein, the detachable sleeve cover has an elastic connecting strap in the middle.

2. The brace for fixing a fracture of the humeral shaft according to claim 1, characterized in that, The detachable sleeve also includes a first sleeve and a second sleeve, the first sleeve being located above the second sleeve and connected by the elastic connecting band, and the second sleeve being connected to the elbow strap.

3. The brace for fixing a fracture of the humeral shaft according to claim 2, characterized in that, The elbow strap has a counterweight bag on its outer side, and the counterweight bag contains a counterweight block.

4. The brace for fixing a fracture of the humeral shaft according to claim 1, characterized in that, Multiple mesh pockets are arranged linearly to form a mesh pocket strap, and the multiple mesh pocket straps are disposed inside the separate sleeve sleeve; the pressure pad is placed in one of the mesh pockets.

5. A brace for fixing a fracture of the humeral shaft according to claim 2, characterized in that, The outer side of the detachable sleeve is provided with a fixing connecting strap, and the two sides of the fixing connecting strap are connected by buckles.

6. A brace for fixing a fracture of the humeral shaft according to claim 1, characterized in that, The forearm cuff has a strap on the outside, and the strap has a connecting part for connecting to the hanging strap.

Images