A vest-type upper limb fixation brace

Abstract

The utility model discloses a kind of vest type upper limb fixed support, it is related to fixed support technical field, to solve the technical problem that fixed support is poor to arm suspension stability, including fixed vest, fixed shell is installed on fixed vest, staggered constraint net is installed on fixed shell inner wall, safety connection belt is connected with fixed vest side, large arm fixing hoop is fixed with safety connection belt, small arm fixing hoop is installed on large arm fixing hoop side, two bend connecting rods are arranged between small arm fixing hoop and large arm fixing hoop, between two bend connecting rod end, it is movably connected and is fixed by bolt, fixed ring is installed on the outer periphery of small arm fixing hoop end, the outer periphery of fixed ring is open, rotating structure is arranged in the outer periphery opening of fixed ring, constraint structure is further arranged on rotating structure. The utility model has the advantages of self-adapting carding constraint hard support, improving stability, protecting arm safety, and reducing secondary injury simultaneously by the cooperation of rotating structure and constraint structure.

Description

Technical Field

[0001] This utility model relates to the field of fixation brace technology, and more specifically, to a vest-type upper limb fixation brace. Background Technology

[0002] When an arm is fractured, an upper limb fixation brace is needed to suspend and support the arm. This suspension typically uses a neck strap, but the neck strap is a soft support structure. During arm suspension, the center of gravity is difficult to maintain stably in an ideal position, and the arm is prone to swaying due to body movements and changes in posture. This not only fails to provide precise and continuous support to the injured arm but also causes discomfort to the patient. More seriously, the injured arm is forced to maintain a single, fixed posture for extended periods under this soft support. Over time, joint mobility is significantly reduced, and the muscles, tendons, and ligaments around the joint lack normal stimulation, gradually leading to adhesions. These adhesions severely restrict the range of motion of the joint, causing stiffness and seriously affecting the normal flexion, extension, and rotation functions of the arm joint in the future. Therefore, we propose a vest-style upper limb fixation brace. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a vest-type upper limb fixation brace to solve the technical problem of poor arm suspension stability of current fixation braces.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a vest-type upper limb fixation brace, including a fixed vest, a fixed shell installed on the fixed vest, an interlaced constraint net installed on the inner wall of the fixed shell, the interlaced constraint net being composed of multiple horizontal and vertical interlaced rods, a safety connecting strap connected to one side of the fixed vest, a large arm fixing hoop fixed to the safety connecting strap, a forearm fixing hoop installed on one side of the large arm fixing hoop, two bent connecting rods provided between the forearm fixing hoop and the large arm fixing hoop, the ends of the two bent connecting rods being movably connected and fixed by bolts, a fixing ring installed on the outer periphery of the end of the forearm fixing hoop, the outer periphery of the fixing ring being open, a rotating structure provided on the outer opening of the fixing ring, and a constraint structure further provided on the rotating structure.

[0005] Preferably, the fixed vest includes two straps, a waistband is fixed between the bottom of the two straps, and Velcro tape is connected to both the straps and the waistband.

[0006] Preferably, the rotating structure includes a rotating ring, which is rotatably connected to a fixed ring. Multiple retaining plates are provided on the outer periphery of the rotating ring, and the multiple retaining plates are arranged in a ring array with the fixed ring as the center.

[0007] Preferably, the arc-shaped clamping plate has a curved structure, with a curved surface on one side. The curved surface contacts the interlaced constraint net to generate a counter-rotating force. A constraint block is integrally formed on the opposite side of the arc-shaped clamping plate. The outer periphery of the constraint block and the adjacent curved surface contacts and constrains the outer periphery of the rods of the interlaced constraint net.

[0008] Preferably, the constraint structure includes a ratchet, the inner ring of which is fixed to the inner bottom wall of the fixed ring, and two pawls are provided on the outer periphery of the ratchet. One end of each pawl is rotatably connected to a central rod, and the central rod is fixed to the rotating ring by a plate.

[0009] Preferably, a spring is fixed between one side of the outer periphery of the pawl and the rotating ring, and a pull rod is movably connected to the other side of the outer periphery of the pawl. The pull rod passes through the rotating ring, and the rotating ring has a circular opening larger than the outer periphery of the pull rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model uses Velcro straps to adjust the waistband of the fixed vest, which can be flexibly adjusted to adapt to different patient body shapes. The interlaced constraint net inside the fixed shell cooperates with the arc plate in the rotating structure to achieve precise positioning and stable support of the arm suspension position. The spacing between the horizontal and vertical interlaced rods of the arc plate and the interlaced constraint net is close, forming horizontal and vertical constraints, which effectively prevents the arm from swaying due to body movement, changes in posture, etc., and provides precise and continuous support for the injured arm, solving the problem of poor stability of arm suspension in fixed braces.

[0012] 2. This utility model also adjusts the center of gravity support point by adjusting the suspension position. This avoids the problem of joint stiffness caused by the arm being in the same position for a long time under the traditional hanging support method. Patients can flexibly adjust the support position of their arm according to their own needs and comfort, reduce adhesion of tissues around the joint, and facilitate normal joint movement and recovery. Moreover, the design of the rotation structure and constraint structure has an adaptive function. When the patient moves the arm slowly, the locking plate contacts the interlaced constraint net, and the curved surface generates a counter-rotating force, causing the rotating ring to rotate in the forward direction. The locking plate automatically constrains the rods of the interlaced constraint net. At the same time, the cooperation of the pawl and ratchet ensures that the rotating ring can only rotate in one direction. Once locked in place, it cannot rotate in the opposite direction, achieving stable constraint. When the support is removed, simply pull the lever. The operation is simple and convenient, further solving the problem of poor arm suspension stability of fixed braces.

[0013] 3. This utility model also achieves the support and unsupport operation of the brace through the direct horizontal rotation of the elbow, without the need for large-scale movements such as vertically raising or retracting the arm. The range of movement is extremely small. Compared with the traditional brace support method, this operation method reduces the patient's pain, lowers the risk of secondary injury, and better meets the patient's rehabilitation needs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the forearm fixing hoop in this utility model;

[0016] Figure 3 This is a schematic diagram of the overall structure of the fixing ring in this utility model;

[0017] Figure 4 This is a half-sectional view of the fixing ring in this utility model;

[0018] Figure 5 In this utility model Figure 4 Enlarged schematic diagram of the constraint structure.

[0019] The numbers in the diagram are explained as follows: 1. Fixed vest; 2. Fixed shell; 3. Interlaced restraint net; 4. Safety connecting belt; 5. Upper arm fixing hoop; 6. Forearm fixing hoop; 7. Bending connecting rod; 8. Fixing ring; 9. Rotating structure; 10. Restraint structure; 101. Belt strip; 102. Waist belt section; 103. Velcro tape; 901. Rotating ring; 92. Arc plate; 921. Curved surface; 922. Restraint block; 111. Ratchet; 112. Pawl; 113. Center rod; 114. Spring; 115. Pull rod. Detailed Implementation

[0020] like Figures 1 to 5 As shown, this utility model relates to a vest-type upper limb fixation brace, which mainly consists of a fixation vest 1, an upper arm fixation hoop 5, a forearm fixation hoop 6, and two curved connecting rods 7. The components cooperate with each other to form a stable and adjustable support system, which aims to provide patients with reliable upper limb fixation and a comfortable rehabilitation experience.

[0021] The fixation vest 1, as the core support component of the entire brace, consists of two straps 101 and a waist belt 102. The bottoms of the two straps 101 are securely connected to the waist belt 102, ensuring structural stability. Velcro straps 103 are attached to both the straps 101 and the waist belt 102. This design offers significant advantages, as the Velcro straps 103 can be flexibly adjusted according to the patient's body size and needs, achieving a personalized wearing effect. Whether the patient is slender or overweight, the fixation vest 1 can be adjusted to achieve the desired fit. Vest 1 fits snugly against the body, providing a stable support base. Meanwhile, the Velcro straps 103 make it easy to put on and take off, facilitating operation for patients in daily life. In the design of fixing vest 1, a fixing shell 2 is also installed. The inner wall of the fixing shell 2 is equipped with an interlaced constraint net 3. The interlaced constraint net 3 is composed of multiple horizontal and vertical crisscrossing rods. This interlaced rod structure forms a complex and stable grid system, providing an important foundation for subsequent connections and support. The design of the interlaced constraint net 3 not only increases the structural strength of the fixing shell 2, but also provides more possibilities for cooperation with other components.

[0022] One side of the fixation vest 1 is connected to the upper arm fixation band 5 via a safety connecting strap 4. The safety connecting strap 4 serves a dual purpose: firstly, it ensures a reliable connection between the upper arm fixation band 5 and the fixation vest 1, preventing detachment or loosening during use; secondly, the safety connecting strap 4 has a certain degree of flexibility, which can adapt to the patient's body movements to some extent, reducing discomfort caused by body movements. A forearm fixation band 6 is installed on one side of the upper arm fixation band 5, and the two together form a fixation structure for the upper limb. Two bent connecting rods 7 are provided between the forearm fixation band 6 and the upper arm fixation band 5, and the ends of these two bent connecting rods 7 are connected by... The flexible connection method, secured with bolts, allows for precise adjustment of the bending degree of the connecting rod 7. This feature enables the brace to adapt to different patients' fracture conditions and upper limb morphologies. Since fracture sites, angles, upper limb lengths, and degrees of bending may vary among patients, adjusting the bending degree of the connecting rod 7 allows the brace to better conform to the patient's upper limb, providing more precise fixation and support, thus aiding in the patient's rehabilitation. A fixing ring 8 with an open periphery is installed at the outer edge of the forearm fixation clamp 6.

[0023] To achieve stable constraints for hard connections

[0024] Adaptive snap-in structure

[0025] A rotating structure 9 is provided on the outer periphery of the fixed ring 8. The rotating structure 9 includes a rotating ring 901, which is rotatably connected to the fixed ring 8. Multiple retaining plates 92 are provided on the outer periphery of the rotating ring 901. The multiple retaining plates 92 are arranged in a ring array around the fixed ring 8. The retaining plates 92 have a curved structure. The size of the retaining plates 92 is close to the spacing of the multiple horizontal and vertical intersecting rods of the intersecting constraint net 3. The spacing of the multiple rods is slightly larger than that of the retaining plates 92 to facilitate insertion. One side of the retaining plate 92 is provided with a curved surface 921. The curved surface 921 contacts the intersecting constraint net 3 to generate a counter-rotating force. On the opposite side of the retaining plate 92, a constraint block 922 is integrally formed. The outer periphery of the constraint block 922 and the adjacent curved surface 921 are in contact with and constrained by the outer periphery of the rods of the intersecting constraint net 3.

[0026] Adaptive constraint structure

[0027] A constraint structure 10 is also provided between the fixed ring 8 and the rotating ring 901. The constraint structure 10 includes a ratchet 111. The inner ring of the ratchet 111 is fixed to the inner bottom wall of the fixed ring 8. Two pawls 112 are provided on the outer periphery of the ratchet 111. One end of the pawl 112 is rotatably connected to a central rod 113. The central rod 113 is fixed to the rotating ring 901 through a plate. A spring 114 is fixed between one side of the outer periphery of the pawl 112 and the rotating ring 901. The elastic force of the spring 114 can keep the pawl 112 and the outer periphery of the ratchet 111 engaged when there is no force. A pull rod 115 is movably connected to the other side of the outer periphery of the pawl 112. The pull rod 115 passes through the rotating ring 901. The rotating ring 901 has a circular opening larger than the outer periphery of the pull rod 115. By enlarging the diameter of the circular opening, oblique pulling can be achieved, avoiding motion interference when the pull rod 115 is pulled.

[0028] Working principle: When it is necessary to restrain the patient's arm, slowly move the patient's arm so that the arc plate 92 near the fixed vest 1 comes into contact with the interlaced restraint net 3. During the contact process, the rods of the interlaced restraint net 3 push against the curved surface 921, and through the design of its curved surface, the rotating ring 901 rotates in the positive direction (this positive direction is...). Figure 3(For reference), since the ratchet 111 in this direction is a gentle slope, the rotating ring 901 can drive the pawl 112 to move. During the rotation and movement, the other locking plates 92 will also constrain the corresponding interlaced constraint net 3 rods until the innermost rod is locked into the innermost side between the constraint block 922 and the adjacent curved surface 921. At this time, the pawl 112 is locked into the locking tooth part of the ratchet 111 and cannot rotate in the opposite direction. Since the size of the locking plate 92 is close to the spacing of the multiple interlaced rods of the interlaced constraint net 3, a kind of horizontal and vertical constraint is formed, realizing a hard connection support and improving the stability of the arm suspension. Moreover, the suspension position can be adjusted according to the different locking positions, that is, the center of gravity support point can be adjusted to avoid the joint stiffness caused by the same position for a long time. It can provide stable support at any position, avoiding the old-style hanging strap support, which caused the arm support position to be the same due to the same center of gravity, and thus the support could be canceled. Only the pull rod 115 needs to be pulled.

[0029] It is also worth mentioning that this support and release of support are achieved through direct horizontal rotation of the elbow, which does not require vertical lifting or retraction of the arm. Compared with the strap method, the range of motion is minimal, reducing patient pain and secondary injury.

[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A vest-style upper limb fixation brace, characterized in that, The vest includes a fixed vest (1), on which a fixed shell (2) is installed. An interlaced constraint net (3) is installed on the inner wall of the fixed shell (2). The interlaced constraint net (3) is composed of multiple horizontal and vertical interlaced rods. A safety connecting belt (4) is connected to one side of the fixed vest (1). A large arm fixing hoop (5) is fixed to the safety connecting belt (4). A small arm fixing hoop (6) is installed on one side of the large arm fixing hoop (5). Two bent connecting rods (7) are provided between the small arm fixing hoop (6) and the large arm fixing hoop (5). The ends of the two bent connecting rods (7) are movably connected and fixed by bolts. A fixing ring (8) is installed on the outer periphery of the end of the small arm fixing hoop (6). The outer periphery of the fixing ring (8) is open. A rotating structure (9) is provided on the outer opening of the fixing ring (8). A constraint structure (10) is also provided on the rotating structure (9).

2. The vest-type upper limb fixation brace according to claim 1, characterized in that, The fixed vest (1) includes two straps (101), and a waist belt (102) is fixed between the bottom of the two straps (101). Velcro tape (103) is connected to both the straps (101) and the waist belt (102).

3. The vest-type upper limb fixation brace according to claim 2, characterized in that, The rotating structure (9) includes a rotating ring (901), which is rotatably connected to the fixed ring (8). Multiple retaining plates (92) are provided on the outer periphery of the rotating ring (901), and the multiple retaining plates (92) are arranged in a ring array with the fixed ring (8) as the center.

4. A vest-type upper limb fixation brace according to claim 3, characterized in that, The arc-shaped plate (92) has a curved structure. One side of the arc-shaped plate (92) has a curved surface (921). The curved surface (921) contacts the interlaced constraint net (3) to generate a counter-rotating force. The opposite side of the arc-shaped plate (92) has an integrally formed constraint block (922). The outer periphery of the constraint block (922) and the adjacent curved surface (921) are in contact with and constrained by the outer periphery of the rod of the interlaced constraint net (3).

5. A vest-type upper limb fixation brace according to claim 4, characterized in that, The constraint structure (10) includes a ratchet (111), the inner ring of which is fixed to the inner bottom wall of the fixed ring (8), and two pawls (112) are provided on the outer periphery of the ratchet (111). One end of the pawl (112) is rotatably connected to a central rod (113), and the central rod (113) is fixed to the rotating ring (901) by a plate.

6. A vest-type upper limb fixation brace according to claim 5, characterized in that, A spring (114) is fixed between one side of the outer periphery of the pawl (112) and the rotating ring (901), and a pull rod (115) is movably connected to the other side of the outer periphery of the pawl (112). The pull rod (115) passes through the rotating ring (901), and the rotating ring (901) has a circular opening larger than the outer periphery of the pull rod (115).

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