High-structure integrated carbon fiber foot plate

The high-structure integrated footplate design made of carbon fiber solves the problems of excessive weight and complex assembly of existing prostheses, achieving a lightweight and highly comfortable prosthesis design, and enhancing energy storage and impact resistance.

CN224112836UActive Publication Date: 2026-04-14USA YOBAND PROSTHETICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing prostheses use metal footplates and connecting devices, resulting in excessive overall weight, which affects user comfort and installation efficiency, and is also complicated to assemble.

Method used

The high-structure integrated footplate design, made of carbon fiber, includes a main footplate, a base plate, and a double lower footplate structure. It is integrated through fasteners and connectors, and has both energy storage and impact protection functions.

Benefits of technology

This technology has achieved lightweight prostheses, improved wearing comfort and installation efficiency, enhanced energy storage and impact resistance, and reduced operational difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a high structure integration carbon fiber foot plate which comprises a connector, a main foot plate, a bottom plate and a double lower foot plate structure, and the main foot plate comprises a leg plate and an upper foot plate which are integrally connected from top to bottom; wherein the upper end of the leg plate is connected with the connector through a fastener, and the tail end of the leg plate is fixedly connected with the double-lower foot plate structure through a connecting piece; the bottom plate is located below the upper foot plate and the double-lower-foot-plate structure, one end of the bottom plate is fixedly connected with the upper foot plate, and the other end of the bottom plate is fixedly connected with the double-lower-foot-plate structure. The main foot plate has the advantages that the main foot plate adopts the integrated design of the foot plate and the leg plate, so that the operation complexity during installation can be avoided, the operation difficulty is reduced, the light weight of the whole artificial limb is better realized, the burden of the residual limb is reduced, and better wearing comfort is provided for a user; due to the arrangement of the double-lower foot plate structure on the main foot plate, the double energy storage and impact protection effects can be achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of medical assistive device technology, and relates to the field of prostheses, especially high-structure integrated carbon fiber footplates. Background Technology

[0002] Fiber materials, with their high strength, high elasticity, and light weight, are widely used in the field of prostheses. Their development has also shifted from low structural height to high structural height products to adapt to higher sports intensity.

[0003] The most widely used technology in the current market is footplate + leg tube + socket. The lower end of the foot tube is installed with the leg tube through a connecting device, and the upper end of the footplate is installed with the socket through a connecting device. In this process, the leg tubes used are mostly made of metal, and the connecting devices on the footplate used for the upper and lower connection are also made of metal. These metal materials often make the prosthesis heavier overall, affecting the user's wearing experience.

[0004] In addition, the connection mode of foot plate + leg tube + receiving cavity makes the overall weight of such products fail to meet the requirements of lightweighting, increasing the burden on the residual limb and reducing the comfort of wearing them; at the same time, the assembly and debugging of multiple prosthetic parts complicates the assembly process, which indirectly reduces the efficiency of installation and increases the workload. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems in the prior art and provide a high-structure integrated carbon fiber footplate.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A high-structure integrated carbon fiber footplate includes: a connector for connecting an external prosthesis; a main footplate including a leg plate and an upper footplate integrally connected from top to bottom; wherein the upper end of the leg plate is connected to the connector via fasteners, and the tail end of the leg plate is fixedly connected to the double lower footplate structure via connectors; and a base plate located below the upper footplate and the double lower footplate structure, one end of which is fixedly connected to the upper footplate, and the other end of which is fixedly connected to the double lower footplate structure.

[0008] Preferably, the outer wall of the connector is further surrounded by a plurality of connecting bolts, wherein the connecting bolts are used to connect an external prosthesis.

[0009] Preferably, the double lower foot plate structure includes a first lower foot plate and a second lower foot plate, one end of the first lower foot plate and the second lower foot plate being fixed to the leg plate by the connector; the other end of the first lower foot plate being connected to the base plate; and the other end of the second lower foot plate being disposed above the base plate.

[0010] Preferably, the first lower foot plate and the second lower foot plate are arranged side by side, wherein a gap is provided between the first lower foot plate and the second lower foot plate.

[0011] Preferably, both the first and second lower plates are V-shaped, with the first lower plate being larger than the second lower plate.

[0012] Preferably, a foot pad is provided between the first lower foot plate and the base plate.

[0013] Preferably, a foot pad is provided between the upper foot plate and the bottom plate.

[0014] Preferably, the upper foot plate, the bottom plate, and the first lower foot plate form a triangular structure.

[0015] Preferably, the upper foot plate is an arc-shaped plate.

[0016] Preferably, the fasteners are fastened by bolts or adhesive; the connectors are fixed by wire bundles or bolts.

[0017] Due to the adoption of the above technical solution, the beneficial effects obtained by this utility model include:

[0018] 1. The main foot plate of this utility model adopts an integrated design of foot plate and leg plate, which can avoid the complexity of operation during installation, reduce the difficulty of operation, better realize the overall lightweight of prosthesis, reduce the burden on residual limb, and provide users with better wearing comfort.

[0019] 2. The main footplate, base plate, and double lower footplate of this utility model are all made of carbon fiber, which further reduces the overall weight of the prosthesis and improves the comfort of the patient.

[0020] 3. The double lower foot plate structure on the main foot plate of this utility model can provide both energy storage and impact protection. At the same time, the triangular structure of the main foot plate, the first lower foot plate and the base plate can achieve a more stable effect, and they complement each other to enhance energy storage and restrain each other to enhance impact resistance. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of an embodiment of the high-structure integrated carbon fiber foot plate of this utility model.

[0022] Figure 2 This is a structural exploded view of an embodiment of the high-structure integrated carbon fiber foot plate of this utility model.

[0023] Figure 3 This is a front plan view of an embodiment of the high-structure integrated carbon fiber foot plate of this utility model.

[0024] The attached figures are labeled as follows:

[0025] 1. Connector; 12. Connecting bolt;

[0026] 2. Main foot plate; 21. Leg plate; 22. Upper foot plate; 23. Fasteners; 24. Connecting parts;

[0027] 3. Base plate; 4. Double bottom plate structure; 41. First bottom plate; 42. Second bottom plate;

[0028] 43. Gap; 5. Foot pad; 6. Foot ball pad. Detailed Implementation

[0029] Please see the appendix Figure 1-3 As shown, this utility model mainly provides a high-structure integrated carbon fiber foot plate, including a connector 1, a main foot plate 2, a base plate 3, and a double lower foot plate structure 4. The main foot plate 2 is used to support back flexion energy storage and leg plate replacement functions; the connector 1 is used to connect to an external prosthesis; the base plate 3 is used to realize auxiliary energy storage for plantar flexion and back flexion; and the double lower foot plate structure 4 is used to realize energy storage for plantar flexion.

[0030] In this embodiment, the main foot plate 2 includes a leg plate 21 and an upper foot plate 22 that are integrally connected from top to bottom. The upper end of the leg plate 21 is connected to the lower end of the connector 1 via a fastener 23, and the tail end of the leg plate 21 is fixedly connected to the upper end of the double lower foot plate structure 4 via a connector 24. The base plate 3 is located below the upper foot plate 22, with one end fixedly connected to the upper foot plate 22 and the other end fixedly connected to the double lower foot plate structure 4. It should be noted that the fastener 23 can be fastened with bolts or other connection methods such as bonding. The connector 24 can be fixed with wire bundles (the wire bundles are made of composite material mainly composed of carbon fiber or glass fiber, which are connected and fixed by winding) or bolts to connect the double lower foot plate structure and the leg plate together. The connection can be decorated with a protective sleeve to improve the overall aesthetics. In addition, in this embodiment, the outer wall of the connector 1 is also surrounded by multiple connecting bolts 12, wherein the upper end of the connector is mainly used to connect the external prosthesis.

[0031] In this embodiment, the double lower foot plate structure 4 includes a first lower foot plate 41 and a second lower foot plate 42, which are arranged side by side. This arrangement enables it to have both energy storage and impact protection functions. One end of the first lower foot plate 41 and one end of the second lower foot plate 42 are fixed to the leg plate 21 by a connector 23. The other end of the first lower foot plate 41 is connected to the base plate 3. The other end of the second lower foot plate 42 is located above the base plate 3. A gap 43 is provided between the first lower foot plate 41 and the second lower foot plate 42. When the plantar flexion reaches a certain deformation, the front end of the second lower foot plate 42 contacts the first lower foot plate 41, realizing backbend impact protection. When the deformation further increases, it achieves an auxiliary energy storage effect, giving the product a better service life. In addition, the special triangular structure between the first lower foot plate 41, the upper foot plate 22, and the base plate 3 can achieve a more stable structure, and they assist each other to enhance energy storage, while also restraining each other to enhance impact resistance.

[0032] In this embodiment, both the first footplate 41 and the second footplate 42 are V-shaped, with the size of the first footplate 41 being larger than that of the second footplate 42. This design enables better energy storage, making it easier and more comfortable for users to walk, run, or jump.

[0033] In this embodiment, a foot pad 5 is provided between the first lower foot plate 41 and the base plate 3; a foot ball pad 6 is provided between the upper foot plate 22 and the base plate 3; the foot ball pad 6 and the foot pad 5 can play a good cushioning and protection role, which can effectively avoid damage caused by collision and contact friction when the upper / lower foot plates are working, and improve the stability and durability during use; the base plate connected below can enhance the stability when standing, and at the same time play an auxiliary energy storage effect of plantar flexion and dorsiflexion.

[0034] In this embodiment, the upper foot plate 22 is an arc-shaped plate, which can further match the physiological structure of the human foot and improve the wearing effect. At the same time, the bottom plate 3 is set to the full length of the foot, making walking more stable and providing better rolling, thus providing users with a better walking experience.

[0035] It should be noted that the main footplate of this utility model adopts an integrated design of the footplate and legplate, which avoids the complexity of the installation process, reduces the difficulty of operation, better realizes the overall lightweight design of the prosthesis, reduces the burden on the residual limb, and provides users with better wearing comfort. At the same time, the main footplate, base plate, and double lower footplate structure are all made of carbon fiber, further reducing the overall weight of the prosthesis and improving the patient's wearing comfort. In addition, the double lower footplate structure on the main footplate can provide dual energy storage and impact protection. Because the product meets the strong sports requirements, the impact force caused by the heel landing during running and jumping will be much greater (the heel will bear 1.25 times the body weight when walking and 2.75 times the body weight when running). At the same time, the triangular structure of the main footplate, the first lower footplate, and the base plate can achieve a more stable effect, and they mutually enhance energy storage and restrain each other to enhance impact resistance.

[0036] The foregoing descriptions and embodiments are provided to enable those skilled in the art to understand and apply this invention. Those skilled in the art will readily make various modifications to these contents and apply the general principles described herein to other embodiments without inventive effort. Therefore, this invention is not limited to the foregoing descriptions and embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this invention without departing from its scope should be within the protection scope of this invention.

Claims

1. A high-structure integrated carbon fiber foot plate, characterized in that, include; Connector, the connector being used to connect an external prosthesis; The main foot plate includes a leg plate and an upper foot plate that are integrally connected from top to bottom; wherein, the upper end of the leg plate is connected to the connector by a fastener, and the tail end of the leg plate is fixedly connected to the double lower foot plate structure by a connector. The base plate is located below the upper foot plate and the double lower foot plate structure, with one end fixedly connected to the upper foot plate and the other end fixedly connected to the double lower foot plate structure.

2. The high-structure integrated carbon fiber foot plate according to claim 1, characterized in that, The outer wall of the connector is also surrounded by a plurality of connecting bolts, which are used to connect an external prosthesis.

3. The high-structure integrated carbon fiber foot plate according to claim 1, characterized in that, The double lower leg structure includes a first lower leg and a second lower leg. One end of the first lower leg and the second lower leg are fixed to the leg plate by the connector. The other end of the first lower leg is connected to the base plate. The other end of the second lower leg is located above the base plate.

4. The high-structure integrated carbon fiber foot plate according to claim 3, characterized in that, The first lower foot plate and the second lower foot plate are arranged side by side, wherein a gap is provided between the first lower foot plate and the second lower foot plate.

5. The high-structure integrated carbon fiber foot plate according to claim 3, characterized in that, Both the first and second lower plates are V-shaped, with the first lower plate being larger than the second lower plate.

6. The high-structure integrated carbon fiber foot plate according to claim 3, characterized in that, A foot pad is provided between the first lower foot plate and the base plate.

7. The high-structure integrated carbon fiber foot plate according to claim 1, characterized in that, A foot pad is provided between the upper foot plate and the bottom plate.

8. The high-structure integrated carbon fiber foot plate according to claim 3, characterized in that, The first lower foot plate, upper foot plate, and base plate form a triangular structure.

9. The high-structure integrated carbon fiber foot plate according to claim 1, characterized in that, The upper foot plate is an arc-shaped plate.

10. The high-structure integrated carbon fiber foot plate according to claim 1, characterized in that, The fasteners are secured by bolts or adhesive; the connectors are secured by wire bundles or bolts.