A limb joint support structure

By designing a limb joint support structure and using components such as grooves and connecting wings, the problem of inconvenience in stretching and bending at joints in traditional support structures has been solved, achieving simplified operation and high stability, and is suitable for a variety of joints.

CN117100482BActive Publication Date: 2026-04-28WUHAN WELLINS INTELLIGENT MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN WELLINS INTELLIGENT MEDICAL TECH CO LTD
Filing Date
2023-08-22
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional low-temperature thermoplastic plates and polymer splints are inconvenient to stretch and bend at joints, resulting in insufficient structural stability, cumbersome operation, and affecting patient comfort and fixation effectiveness.

Method used

A limb joint support structure is designed, including an upper support, a lower support, and a connecting part. The groove design avoids the formation of angles, and the connecting wings and fasteners are used for quick positioning. The positioning structure and binding straps are combined to achieve multi-angle fixation.

Benefits of technology

It simplifies the stretching and bending operations of joints, improves the stability and reliability of the structure, adapts to different joint parts, and enhances the ease and comfort of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The technical scheme of the present application provides a kind of limbs joint support structure, including upper support part, lower support part and link part, the upper support part and the lower support part can be bent to arc surface shape from both sides, for fitting to the upper limbs and lower limbs at the joint of patient;Two ends of the link part are connected to the upper support part and the lower support part respectively, for fitting to joint position, the width of the link part is less than the upper support part and the lower support part, so that two grooves are formed between the link part and the upper support part and the lower support part.The beneficial effects of the present application form a link part between the upper support part and the lower support part through the groove, the link part is bent and fitted to the joint, avoiding the generation of corner, when bending, it can be simplified, whether the material has enough ductility or not, it can meet the requirements, the structure is simple, the complexity is low, and the production process is simple, the operability is high;Shoulder joint, elbow joint, ankle and other parts are applicable, and the structure design has certain universality.
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Description

Technical Field

[0001] This invention relates to the field of medical rehabilitation equipment technology, and in particular to a joint support structure for the limbs. Background Technology

[0002] Traditional low-temperature thermoplastic panels and polymer splints have flawed designs for stretching and bending at joints due to their planar shape. The molding process can interfere with operation, and the resulting structure lacks stability. Polymer splints, with their straight structure, present significant difficulties when encountering joints requiring stretching and bending, as the bends tend to bulge outwards. For example, patent 201020209533.8, a medical polymer splint, includes a sheet-like polymer splint body with numerous ventilation holes on its surface. This is quite cumbersome to handle, and the stability and reliability after fixation are questionable. While low-temperature thermoplastic panels have good tensile properties and exhibit some adhesion after soaking in hot water, they cannot guarantee sufficient stability and reliability for patients during use. Their bends also leave angles, as seen in patent 202123040950.1, a comfort-type low-temperature thermoplastic panel and low-temperature thermoplastic panel brace, which includes a low-temperature thermoplastic panel body and a foam layer applied to at least one surface of the body. Moreover, the shaping process of this structure is complicated and requires frequent adjustments during stretching, which is very painful for patients who already have injuries.

[0003] Therefore, a planar plate-type limb joint support structure is needed to solve the problem of inconvenience in handling the stretching and bending of planar plate-type support structures at limb joints in the existing technology. Summary of the Invention

[0004] In view of this, it is necessary to provide a limb joint support structure to solve the technical problem of inconvenience in handling the stretching and bending of the support structure at the limb joint in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention provides a limb joint support structure, comprising: an upper support, a lower support, and a connecting part. The upper support and the lower support can be bent into an arc shape from both sides for fitting the upper and lower limbs at the patient's joints. The two ends of the connecting part are respectively connected to the upper support and the lower support for fitting the joint position. The width of the connecting part is smaller than that of the upper support and the lower support, so that two grooves are formed between the connecting part and the upper and lower supports, and the two grooves are distributed on both sides of the connecting part.

[0006] Furthermore, the lower support extends toward the upper support with two connecting wings, which correspond to the two sides of the upper support respectively. The connecting wings are provided with fixing members to connect and fix the upper support and the lower support, which are bent into an arc shape, when the connecting part is bent to form an angle between the upper support and the lower support.

[0007] Furthermore, it also includes a pair of positioning structures for inserting the fastener and limiting the included angle between the upper support and the lower support.

[0008] Furthermore, the positioning structure includes an adjustment groove and a positioning hole formed on the upper support. The adjustment groove is arc-shaped, and several positioning holes are circumferentially distributed around the center of the adjustment groove. Two through holes are formed on the connecting wing. When the two through holes are bent, they are respectively aligned with the adjustment groove and the positioning hole on the corresponding side. The fastener is inserted into the through hole.

[0009] Furthermore, the positioning structure includes a through hole and a fixing hole on the upper support, and an adjustment groove and a connecting hole on the connecting wing. The fixing holes are arranged in multiple rows, and the connecting holes are arranged in an array, with the array spacing being the same as the array spacing of the fixing holes. When the connecting part is bent, the adjustment groove and the connecting hole are respectively aligned with the corresponding through hole and the fixing hole. The fastener is inserted into the through hole and the connecting hole.

[0010] Furthermore, the fastener includes a rivet buckle, used to engage and lock the A and B ends of the rivet buckle in corresponding slots.

[0011] Furthermore, both the upper support and the lower support are provided with several pairs of binding ends. The binding ends include a U-shaped groove and a through groove. The U-shaped groove is formed on the upper support or the lower support, and an outwardly protruding wing is formed in the U-shaped groove. The through groove is formed on the outwardly protruding wing.

[0012] Furthermore, both the upper support and the lower support are provided with a number of ventilation holes, which are distributed in a honeycomb pattern on both the upper support and the lower support; a soft pad is provided on the connecting part for padding the joint.

[0013] Furthermore, a binding strip is provided between the pair of binding ends, the binding strip passing through and fitting between the through slots on the pair of binding ends.

[0014] Furthermore, the binding strap is a Velcro strap.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The groove forms a connecting part between the upper support and the lower support. The connecting part is bent and fits to the joint to avoid the formation of angles. When bending, it can be greatly simplified. It can meet the requirements regardless of whether the material has sufficient ductility. The structure is simple, the complexity is low, the production process is simple, and the operability is high.

[0017] 2. Applicable to shoulder joints, elbow joints, ankles, etc., with a certain degree of versatility in its structural design;

[0018] 3. The connecting wings and fasteners form a quick positioning structure, which facilitates connection after bending. The fixed structure is reliable and has high stability and reliability.

[0019] 4. Through the positioning structure, a point-to-point flat plate structure is formed, which can meet the fixation requirements of multiple angles at the same time. It is highly adaptable, and the manual operation shaping process is greatly simplified, with fewer movements and faster speed. Attached Figure Description

[0020] Figure 1 This is a plan view of the limb joint support structure according to an embodiment of the present invention;

[0021] Figure 2 This is a three-dimensional elevation view of the limb joint support structure according to an embodiment of the present invention;

[0022] Figure 3 This is a three-dimensional top-view diagram of the limb joint support structure according to an embodiment of the present invention;

[0023] Figure 4 This is a plan view of the ventilation holes in the limb joint support structure according to an embodiment of the present invention;

[0024] Figure 5 This is a plan view of the ankle of the limb joint support structure according to an embodiment of the present invention;

[0025] In the diagram: 1. Upper support; 101. Groove; 2. Lower support; 201. Connecting wing; 202. Through hole; 3. Connecting part; 301. Pad; 4. Fastener; 401. Rivet fastener; 5. Positioning structure; 51. Adjustment groove; 52. Positioning hole; 53. Fixing hole; 54. Connecting hole; 6. Binding end; 61. U-shaped groove; 62. Through groove; 601. Outward protruding wing; 7. Ventilation hole; 8. Binding strap. Detailed Implementation

[0026] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0027] like Figure 1-2 As shown, this invention provides a limb joint support structure, including an upper support 1, a lower support 2, and a connecting part 3. The upper support 1 and the lower support 2 can be bent into an arc shape from both sides for fitting the upper and lower limbs at the patient's joint. The two ends of the connecting part 3 are respectively connected to the upper support 1 and the lower support 2 for fitting the joint position. The width of the connecting part 3 is smaller than that of the upper support 1 and the lower support 2, so that two grooves 101 are formed between the connecting part 3 and the upper and lower support 1 and the lower support 2. The two grooves 101 are distributed on both sides of the connecting part 3, thus forming a narrow and long section at the curved part of the joint. The connecting part 3 is used to fit the joint position, and when bent, it is not easy to generate a large angle, thereby avoiding the angle from having a significant impact on the support structure. It can be made of either easily stretchable materials or materials with poor ductility, thereby reducing the limitations on the material specialization of the support structure.

[0028] Understandably, when the connecting part 3 is bent, since the groove 101 separates the connection between the upper support part 1 and the lower support part 2 on both sides of the bent part, when the main body is bent into an arc shape and the connecting part 3 is bent to fold the two supports at an angle, the upper support part 1 and the lower support part 2 will not affect each other, nor will they cause the connecting part 3 to produce an outward convex angle. Bending is easier, and the stretching or adjustment of the joint can be greatly simplified. It can meet the requirements regardless of whether the material has sufficient ductility; it is suitable for joints such as shoulder joint, elbow joint, and ankle joint.

[0029] It should be noted that the planar template of this limb joint support structure can be directly fabricated using a 3D printer.

[0030] In one embodiment, to facilitate connection and fixation after bending, see [reference needed]. Figure 1 and Figure 2 The lower support 2 extends toward the upper support 1 with two connecting wings 201. The connecting wings 201 are located at two side corners on this side. The connecting wings 201 correspond to the two sides of the upper support 1 respectively. The connecting wings 201 are provided with fixing members 4, which are used to connect and fix the upper support 1 and the lower support 2, which are bent into an arc shape, when the connecting part 3 is bent to form an angle between the upper support 1 and the lower support 2.

[0031] Understandably, after bending the connecting part 3, there is an angle between the upper support part 1 and the lower support part 2. Since the connecting wing 201 extends towards the upper support part 1, after bending, it partially overlaps the outer surface of the upper support part 1. At this position, the shape and angle of the angle can be fixed by the fastener 4 passing through the connecting wing 201 and the upper support part 1. The fastener 4 can be fixed by metal or non-metal fasteners or screws.

[0032] In one embodiment, to facilitate adjustment of the bending angle after bending, see [reference needed]. Figure 1 and Figure 2 The limb joint support structure also includes a pair of positioning structures 5. Each positioning structure 5 includes an adjustment groove 51 and positioning holes 52 formed on the upper support portion 1. The adjustment groove 51 is arc-shaped, and several positioning holes 52 are distributed circumferentially around the center of the adjustment groove 51, mainly located on the upper part of the adjustment groove 51. Different bending angles are positioned according to different positioning holes 52. The connecting wing 201 has two through holes 202. When bending the joint, the two through holes 202 are respectively aligned with the corresponding adjustment groove 51 and positioning hole 52. The positioning hole 52 is used for guidance via the adjustment groove 51, allowing sliding along the adjustment groove 51 for angle adjustment. The positioning hole 52 mainly serves a locking function; when the desired angle is reached by sliding along the adjustment groove 51, the positioning hole 52 at the corresponding position locks in place. The fixing member 4 is inserted into the through hole 202, passing through the through hole 202. Within the adjustment groove 51, the fixing member 4 is slidably connected. However, within the positioning hole 52, since the positioning hole 52 does not provide a sliding range, the position is locked to fix the angle.

[0033] Understandably, during use, the fastener 4 is first installed into the adjustment groove 51 and the corresponding through hole 202. The included angle between the upper support 1 and the lower support 2 is adjusted by sliding the fastener 4 along the adjustment groove 51. Finally, at the required angle, the fastener 4 is installed between the positioning hole 52 and the aligned through hole 202 to lock and position.

[0034] In one embodiment, to facilitate adjustment after bending, especially at the ankle, and to improve the strength of adjustment and connection, see [reference needed]. Figure 5The limb joint support structure also includes a pair of positioning structures 5. The positioning structure 5 includes a through hole 202 and a fixing hole 53 opened on the upper support 1, and an adjustment groove 51 and a connecting hole 54 opened on the connecting wing 201. Several fixing holes 53 are arranged in an array of multiple rows, specifically three rows and three columns. Several connecting holes 54 are arranged in an array of three, and the array spacing is the same as the array spacing of the fixing holes 53, specifically three. The multiple fixing holes 53 are connected to different fixing holes 53 within the array range through fixing members 4, thereby achieving the purpose of angle adjustment. Due to the structure of multiple fixing members 4, the stability of the connection structure is improved. At the ankle, it is easy to accidentally swing, thus improving the controllability. When bending the connecting part 3, the adjustment groove 51 and the connecting hole 54 are respectively aligned with the through hole 202 and the fixing hole 53 on the corresponding side. The fixing member 4 is inserted into the through hole 202 and the connecting hole 54. The angle is adjusted by passing through the adjusting groove 51 and the through hole 202 through the fixing member 4, which can slide within the adjusting groove 51. The angle is fixed by passing through the fixing hole 53 and the corresponding connecting hole 54 through the fixing member 4.

[0035] It is understandable that the adjustment groove 51, connecting hole 54, through hole 202 and fixing hole 53 on the positioning structure 5 of the upper support 1 and the lower support 2 can be interchanged, as long as the adjustment groove 51 is aligned with the through hole 202 and the connecting hole 54 is aligned with the fixing hole 53 when bending.

[0036] In one embodiment, to facilitate locking and positioning, the fastener 4 may be a rivet buckle 401. The rivet buckle 401 has two ends. The buckle is engaged in the slot where it needs to be inserted, thus forming a positioning. Specifically, regardless of which end of the rivet buckle 401 is in the same position, the diameter of its penetration position is smaller than the inner diameter of the slot, while its head fits against both ends of the slot, and its head is larger than the inner diameter of the slot.

[0037] Understandably, the rivet fastener 401 is an existing fixing buckle, whose structure consists of end A and end B. End A and end B correspond to the fastener seat and fastener head, respectively. When engaged, they can form a connection, so that after passing through two holes, they can be engaged again, thereby connecting the upper support 1 and the lower support 2.

[0038] In one embodiment, for attachment to a patient's limb, see [reference needed]. Figure 1 and Figure 3Both the upper support portion 1 and the lower support portion 2 are provided with a plurality of binding ends 6. The binding ends 6 include a U-shaped groove 61 and a through groove 62. The U-shaped groove 61 is formed on the upper support portion 1 or the lower support portion 2, and an outwardly protruding wing 601 is formed in the U-shaped groove 61. The through groove 62 is formed on the outwardly protruding wing 601.

[0039] Understandably, due to the characteristics of the flat plate, when bending, the outwardly protruding wing 601 does not generate linkage because it is separated by the U-shaped groove 61, thus disengaging from the U-shaped groove 61 and turning outward to be exposed. Therefore, it is convenient to install the straps.

[0040] Furthermore, a binding band 8 is provided between the pair of binding ends 6, the binding band 8 passing through and fitting between the through grooves 62 on the pair of binding ends 6, thereby forming a ring-shaped binding relationship.

[0041] Furthermore, the binding strap 8 is a Velcro strap, which is convenient for binding and unbinding.

[0042] In one embodiment, to improve breathability and comfort, see [reference needed]. Figure 4 Both the upper support 1 and the lower support 2 are provided with a plurality of ventilation holes 7, which are distributed in a honeycomb pattern on both the upper support 1 and the lower support 2, thereby improving the overall breathability and comfort.

[0043] For further details, please refer to [link / reference]. Figure 1 The connecting part 3 is provided with a soft pad 301, which is used to pad the joint, thereby improving the softness of the contact at the joint and reducing the discomfort at the joint.

[0044] The specific working process of this invention is as follows: In use, the upper support 1 and the lower support 2 are bent on both sides, and the upper support 1 and the lower support 2 are pushed to bend the connecting part 3, so that the upper support 1 and the lower support 2 form an angle. The connecting wing 201 is then attached to the outer surface of the upper support 1, aligned with the adjustment groove 51 and the corresponding through hole 202, and the fixing member 4 is inserted between the two. Then, it is slid and adjusted so that the through hole 202 above it is aligned with the corresponding positioning hole 52, and the fixing member 4 is inserted between the two to lock it. The point-to-point flat plate structure greatly simplifies the manual shaping process, with fewer actions and faster speed.

[0045] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A limb joint support structure, characterized in that, include: The device comprises an upper support, a lower support, and a connecting portion. The upper and lower supports can be bent into an arc shape from both sides to fit the upper and lower limbs at the patient's joints. The two ends of the connecting portion are respectively connected to the upper and lower supports to fit the joint position. The width of the connecting portion is smaller than that of the upper and lower supports, so that two grooves are formed between the connecting portion and the upper and lower supports. The two grooves are distributed on both sides of the connecting portion. The lower support extends toward the upper support with two connecting wings, which correspond to the two sides of the upper support respectively. The connecting wings are provided with fixing members to connect and fix the upper support and lower support, which are bent into an arc shape, when the connecting part is bent to form an angle between the upper support and the lower support. It also includes a pair of positioning structures for inserting the fastener and limiting the included angle between the upper support and the lower support; Wherein, after the bending connection, there is an angle between the upper support and the lower support. Since the connecting wing extends toward the upper support, after bending, it partially overlaps the outer surface of the upper support. At this position, the shape and angle of the angle can be fixed by a fastener passing through the connecting wing and the upper support. The positioning structure is scheme A: the positioning structure includes an adjustment groove and positioning holes formed on the upper support, the adjustment groove is arc-shaped, and several positioning holes are distributed circumferentially around the center of the adjustment groove; two through holes are formed on the connecting wing, and the positions of the two through holes are aligned with the adjustment groove and the positioning hole on the corresponding side when the bending connection is in place; the fastener is inserted into the through hole; Alternatively, the positioning structure may be Scheme B: the positioning structure includes a through hole and a fixing hole on the upper support, and an adjustment groove and a connecting hole on the connecting wing. A plurality of fixing holes are arranged in an array of multiple rows, and a plurality of connecting holes are arranged in an array, with the array spacing being the same as the array spacing of the fixing holes. When the connecting part is bent, the adjustment groove and the connecting hole are respectively aligned with the through hole and the fixing hole on the corresponding side. The fastener is inserted into the through hole and the connecting hole.

2. The limb joint support structure according to claim 1, characterized in that, The fastener is a rivet fastener.

3. The limb joint support structure according to claim 2, characterized in that, Both the upper support and the lower support are provided with several pairs of binding ends. The binding ends include a U-shaped groove and a through groove. The U-shaped groove is formed on the upper support or the lower support, and an outward wing is formed in the U-shaped groove. The through groove is formed on the outward wing.

4. The limb joint support structure according to claim 3, characterized in that, Both the upper support and the lower support have a number of ventilation holes, which are distributed in a honeycomb pattern. A soft pad is provided on the connecting part for use as a pad at the joint.

5. The limb joint support structure according to claim 4, characterized in that, A binding strip is provided between the pair of binding ends, the binding strip passing through and fitting between the through slots on the pair of binding ends.

6. The limb joint support structure according to claim 5, characterized in that, The binding strap is a Velcro strap.

Citation Information

Patent Citations

  • Medical macromolecular splint

    CN201676047U

  • Comfortable low-temperature thermoplastic plate and low-temperature thermoplastic plate brace

    CN216495950U

  • Four-limb joint supporting structure

    CN223143650U