Breathable and comfortable artificial limb orthopedic protector

By introducing airbag and ventilation mechanisms into prosthetic orthotic braces, and using human movement to drive gas flow, the problem of insufficient breathability and comfort of traditional prosthetic orthotic braces is solved, achieving a highly efficient breathable and comfortable wearing experience.

CN224179835UActive Publication Date: 2026-05-01GANNAN MEDICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GANNAN MEDICAL UNIV
Filing Date
2025-01-20
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional prosthetic or orthotic braces are inadequate in terms of breathability and comfort. Especially when worn for extended periods or during high-intensity activities, users experience noticeable stuffiness and discomfort. Furthermore, high-end braces with built-in fans or pump systems increase product complexity and cost, impacting the user experience.

Method used

A breathable and comfortable prosthetic orthotic brace was designed, employing an airbag mechanism and a ventilation mechanism. Gas flow and distribution are achieved through natural human movement. The ventilation effect is enhanced by the combination of a ring-shaped spring telescopic rod and a spiral soft rubber tube with ventilation holes, and comfort is improved by a silicone layer.

Benefits of technology

It achieves improved breathability and comfort without relying on complex fan or pumping systems, reduces product complexity and cost, and ensures a comfortable experience during prolonged wear and high-intensity activities.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of artificial limb orthopedic protectors, in particular to a breathable and comfortable artificial limb orthopedic protector which comprises an artificial limb body, a wearing assembly is installed at the top end of the artificial limb body and comprises a lower supporting plate, the lower supporting plate is fixedly arranged at the top end of the artificial limb body, and the top end of the lower supporting plate is fixedly connected with a spring telescopic rod. An air bag mechanism capable of distributing air is fixedly installed on the upper surface of the lower supporting plate and comprises an outer air bag and an inner air bag, the inner air bag is located in the outer air bag, the top end of the inner air bag is fixedly connected with an air outlet hard pipe, and one side of the top end of the outer air bag is fixedly connected with an air outlet hose. The top end of the upper supporting plate is fixedly connected with an orthopedic cylinder, and the inner side of the orthopedic cylinder is fixedly connected with a connecting layer. According to the orthopedic device, a complex fan or a pumping system is not needed, effective flowing and distribution of gas can be achieved only through natural actions of a human body, and the product complexity and cost are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of prosthetic orthopedic protective gear, specifically a breathable and comfortable prosthetic orthopedic protective gear. Background Technology

[0002] Prosthetic or orthotic devices are external devices used to replace, compensate for, or support parts of the human body that have lost or are defective, in order to help restore and improve patients’ ability to live independently and move. They are used to replace lost lower limbs. Lower limb prostheses can help users regain functions such as walking and running, and even perform some complex movements.

[0003] Traditional prosthetic orthotic braces have significant shortcomings in terms of breathability and comfort. Although some products on the market have attempted to improve breathability by increasing the number of air holes or using breathable materials, these methods often have limited effectiveness.

[0004] Especially when worn for extended periods or during high-intensity activities, users still experience significant stuffiness and discomfort. While some high-end protective gear incorporates fans or pumping systems for active ventilation, these devices not only increase the complexity and cost of the product but may also affect the user's daily use and wearing experience. Therefore, a breathable and comfortable prosthetic or orthotic protective gear is proposed to address these issues. Utility Model Content

[0005] The purpose of this invention is to provide a breathable and comfortable prosthetic orthotic brace to solve the problem that users still feel obvious stuffiness and discomfort when wearing it for a long time or engaging in high-intensity activities. Although some high-end braces have built-in fans or pumping systems to achieve active ventilation, these devices not only increase the complexity and cost of the product, but may also affect the user's daily use and wearing experience.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A breathable and comfortable prosthetic orthotic brace includes a prosthesis body with a wearable assembly mounted on its top. The wearable assembly includes a lower support plate fixedly mounted on the top of the prosthesis body. A spring-loaded telescopic rod is fixedly connected to the top of the lower support plate. An airbag mechanism capable of distributing gas is fixedly mounted on the upper surface of the lower support plate. The airbag mechanism includes an outer airbag and an inner airbag, with the inner airbag located inside the outer airbag. A rigid air outlet tube is fixedly connected to the top of the inner airbag, and an air outlet tube is fixedly connected to one side of the top of the outer airbag. An air hose; an upper support plate is installed above the external airbag, and an orthotic tube is fixedly connected to the top of the upper support plate. A connecting layer is fixedly connected to the inner side of the orthotic tube, and a ventilation mechanism is installed on the inner side of the connecting layer. The ventilation mechanism includes a spiral soft rubber tube, which is fixedly installed on the inner side of the connecting layer. A silicone layer is fixedly connected to the inner side of the spiral soft rubber tube. Both the surface of the spiral soft rubber tube and the surface of the silicone layer have interconnected ventilation holes. An air outlet groove is formed on the inner side of the silicone layer, and the air outlet groove is connected to the ventilation holes.

[0008] As a further optimization of this utility model, the lower support plate has a circular projection shape, is located on the central axis of the prosthesis body, has several spring telescopic rods at its top, and is arranged in a circular pattern with the several lower support plates equidistantly arranged. The telescopic ends of the spring telescopic rods are fixedly connected to the lower surface of the upper support plate.

[0009] As a further optimization of this utility model, the upper support plate is located above the lower support plate, the upper support plate and the lower support plate are located on the same central axis, the lower surface of the upper support plate is in contact with the upper surface of the outer airbag, and the middle of the lower surface of the upper support plate is in contact with the upper surface of the inner airbag.

[0010] As a further optimization of this utility model, the inner side of the inner airbag is connected to the inner side of the air outlet tube, the top end of the air outlet tube extends to the bottom end of the inner side of the orthotic cylinder, the air outlet tube is slidably connected to the orthotic cylinder, and a first one-way air inlet tube is fixedly connected to the bottom end of the inner airbag, and a one-way valve is installed in the middle of the first one-way air inlet tube.

[0011] As a further optimization of this utility model, the external airbag is annular in shape, and the inner side of the external airbag is connected to the inner side of the spiral soft tube through the inner side of the air outlet hose. The air outlet hose is located at the bottom of the inner side of the orthopedic tube. A second one-way air inlet pipe is fixedly connected to the bottom of the outer side of the external airbag. The second one-way air inlet pipe is located above the first one-way air inlet pipe, and a one-way valve is installed in the middle of the second one-way air inlet pipe.

[0012] As a further optimization of this utility model, the connecting layer is located at the top of the inner side of the orthopedic tube, the shape of the silicone layer is adapted to the shape of the spiral soft tube, and the silicone layer and the spiral soft tube are located on the same axis.

[0013] As a further optimization of this utility model, the number of air vents is set to several, and the several air vents are arranged in a spiral pattern at equal intervals.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, through the design of wearable components, airbag mechanism, and ventilation mechanism, compared with traditional protective gear, it does not rely on complex fan or pumping systems. It can achieve effective air flow and distribution solely through natural human movement, reducing product complexity and cost. The ring-shaped spring telescopic rods ensure uniform force distribution, while the combination of spiral soft rubber tubes with ventilation holes and air outlets greatly enhances the ventilation effect on the outside of the residual limb. In addition, the design of the silicone layer further improves the comfort of contact with the skin. This protective gear solves the shortcomings of traditional protective gear in terms of breathability and comfort in a simple and efficient way. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side view of the present invention.

[0018] Figure 3 This is a schematic diagram of the airbag mechanism of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the orthopedic tube of this utility model;

[0020] Figure 5 This is a schematic diagram of the air-permeable mechanism of this utility model.

[0021] In the image: 1. Prosthetic body; 2. Wearing components;

[0022] 21. Lower support plate; 22. Spring telescopic rod;

[0023] 23. Airbag mechanism; 231. External airbag; 232. Internal airbag; 233. Air outlet rigid tube; 234. Air outlet flexible tube; 235. First one-way air inlet tube; 236. Second one-way air inlet tube;

[0024] 24. Upper support plate; 25. Orthopedic tube; 26. Connecting layer;

[0025] 27. Ventilation mechanism; 271. Spiral soft rubber tube; 272. Silicone layer; 273. Ventilation hole; 274. Air outlet groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Please see Figure 1-5 This utility model provides a technical solution:

[0029] A breathable and comfortable prosthetic orthotic brace includes a prosthesis body 1 providing ground support for the entire brace. A wearing assembly 2 for wearing on the patient's residual limb is mounted on the top of the prosthesis body 1. The wearing assembly 2 includes a lower support plate 21, which is fixedly mounted on the top of the prosthesis body 1. A spring telescopic rod 22 is fixedly connected to the top of the lower support plate 21. An airbag mechanism 23 for distributing gas is fixedly mounted on the upper surface of the lower support plate 21. The airbag mechanism 23 includes an outer airbag 231 and an inner airbag 232. The inner airbag 232 is located inside the outer airbag 231. An exhaust tube 233 is fixedly connected to the top of the inner airbag 232, and an exhaust hose 234 is fixedly connected to one side of the top of the outer airbag 231. An upper support plate 24 is installed on top, and an orthotic tube 25 is fixedly connected to the top of the upper support plate 24. A connecting layer 26 is fixedly connected to the inner side of the orthotic tube 25, and a ventilation mechanism 27 is installed on the inner side of the connecting layer 26. The ventilation mechanism 27 includes a spiral soft rubber tube 271, which is fixedly installed on the inner side of the connecting layer 26. A silicone layer 272 is fixedly connected to the inner side of the spiral soft rubber tube 271. Ventilation holes 273 are opened on the surface of the spiral soft rubber tube 271 and the surface of the silicone layer 272. An air outlet groove 274 is opened on the inner side of the silicone layer 272. The air outlet groove 274 is connected to the ventilation holes 273. The number of ventilation holes 273 is set to several, and the several ventilation holes 273 are arranged in a spiral shape at equal intervals.

[0030] As a further implementation of this solution, the projected shape of the lower support plate 21 is circular. The lower support plate 21 is located on the central axis of the prosthesis body 1. There are several spring telescopic rods 22 installed at the top of the lower support plate 21. The several lower support plates 21 are arranged in a circular pattern at equal intervals. The telescopic ends of the spring telescopic rods 22 are fixedly connected to the lower surface of the upper support plate 24. The circular arrangement of the spring telescopic rods 22 can ensure that the pressure from the residual limb is evenly distributed on the lower support plate 21. This even distribution helps to reduce the situation of excessive force at a single point, thereby extending the service life of the prosthesis and reducing the patient's discomfort.

[0031] As a further implementation of this solution, the upper support plate 24 is located above the lower support plate 21. The upper support plate 24 and the lower support plate 21 are located on the same central axis. The lower surface of the upper support plate 24 is in contact with the upper surface of the outer airbag 231, and the middle of the lower surface of the upper support plate 24 is in contact with the upper surface of the inner airbag 232. The coaxial design of the upper support plate 24 and the lower support plate 21 ensures the stability of the entire structure and helps to reduce shaking and tilting during use. The direct contact between the upper support plate 24 and the outer airbag 231 and the inner airbag 232 ensures that the airbag can be evenly stressed when it is under pressure.

[0032] As a further implementation of this solution, the external airbag 231 is annular in shape. The inner side of the external airbag 231 is connected to the inner side of the spiral soft tubing 271 via the inner side of the air outlet hose 234. The air outlet hose 234 is located at the bottom of the inner side of the orthotic cylinder 25. A second one-way air inlet pipe 236 is fixedly connected to the bottom of the outer side of the external airbag 231. The second one-way air inlet pipe 236 is located above the first one-way air inlet pipe 235. A one-way valve is installed in the middle of the second one-way air inlet pipe 236. The inner side of the inner airbag 232 is connected to the inner side of the hard air outlet pipe 233. The top end of tube 233 extends to the bottom end of the inner side of orthotic cylinder 25. The air outlet tube 233 is slidably connected to orthotic cylinder 25. The bottom end of inner airbag 232 is fixedly connected to the first one-way air inlet tube 235. A one-way valve is installed in the middle of the first one-way air inlet tube 235. Gas flows through air outlet hose 234 to spiral soft rubber tube 271, and then is evenly distributed around the residual limb through vent hole 273 and air outlet groove 274, improving breathability. The top end of air outlet tube 233 also extends to the bottom end of the inner side of orthotic cylinder 25, further improving the breathability and comfort of the patient's residual limb.

[0033] As a further implementation of this solution, the connecting layer 26 is located at the top of the inner side of the orthopedic tube 25, and the shape of the silicone layer 272 is adapted to the shape of the spiral soft tube 271. The silicone layer 272 and the spiral soft tube 271 are located on the same axis. This arrangement further enhances the stability of the structure, and the spiral soft tube 271 has good elasticity.

[0034] Workflow: The orthotic tube 25 is worn on the outside of the amputee's residual limb. The prosthesis body 1 provides ground support for the breathable and comfortable prosthetic orthotic brace. To provide comfortable ventilation for the amputee's residual limb, several spring-loaded telescopic rods 22 are installed between the lower support plate 21 and the upper support plate 24. The spring-loaded telescopic rods 22 have good elasticity. During the patient's walking, the pressure from the patient's body is applied to the orthotic tube 25 through the residual limb, and the orthotic tube 25 then distributes the pressure through the upper support plate. The force is transmitted to the telescopic end of the lower spring telescopic rod 22. The annular arrangement of the spring telescopic rods 22 makes the force distribution process more uniform, causing the telescopic end of the spring telescopic rod 22 to move downward. At this time, the outer airbag 231 and inner airbag 232 in the airbag mechanism 23 are squeezed downward by the upper support plate 24 and will contract downward. They are restricted by the one-way valves of the first one-way air inlet pipe 235 and the second one-way air inlet pipe 236, while the gas inside the outer airbag 231 and inner airbag 232 will flow to the air outlet hose 234 respectively. In the air outlet tube 233, since the top of the air outlet tube 233 extends to the bottom of the inner side of the orthotic cylinder 25, the air inside the air outlet tube 233 will accelerate the airflow at the bottom of the inner side of the orthotic cylinder 25, further improving the ventilation comfort of the patient's residual limb. The air in the air outlet hose 234 will flow to the spiral soft rubber tube 271 of the ventilation mechanism 27. The spiral soft rubber tube 271 increases the contact area with the outside of the residual limb, and utilizes several ventilation holes 273 and air outlet grooves. The combination of 274 can quickly distribute gas to the part in contact with the outside of the residual limb, thereby further enhancing the ventilation effect of the outside of the residual limb. The silicone layer 272 made of silicone material can improve the comfort of contact with the skin. When the patient lifts up, the elasticity from several spring telescopic rods 22 can make the outer airbag 231 and the inner airbag 232 quickly return to their original shape. Gas is introduced through the first one-way air inlet tube 235 and the second one-way air inlet tube 236, and gas is re-accumulated to prepare for the next pressurization, and the cycle continues.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A breathable and comfortable prosthetic orthotic brace, comprising a prosthesis body (1), characterized in that: The top of the prosthetic body (1) is fitted with a wearable component (2); The wearable component (2) includes a lower support plate (21), which is fixedly mounted on the top of the prosthesis body (1). A spring telescopic rod (22) is fixedly connected to the top of the lower support plate (21). An airbag mechanism (23) for distributing gas is fixedly installed on the upper surface of the lower support plate (21). The airbag mechanism (23) includes an outer airbag (231) and an inner airbag (232), with the inner airbag (232) located inside the outer airbag (231). The inner airbag (232) is fixedly connected to the top end of the inner airbag (233), and the outer airbag (231) is fixedly connected to one side of the top end of the outer airbag (231) with an air outlet hose (234); an upper support plate (24) is installed above the outer airbag (231), and an orthotic tube (25) is fixedly connected to the top end of the upper support plate (24). A connecting layer (26) is fixedly connected to the inner side of the orthotic tube (25), and a ventilation mechanism (27) is installed on the inner side of the connecting layer (26). The ventilation mechanism (27) includes a spiral soft rubber tube (271), which is fixedly disposed on the inner side of the connecting layer (26). A silicone layer (272) is fixedly connected to the inner side of the spiral soft rubber tube (271). Both the surface of the spiral soft rubber tube (271) and the surface of the silicone layer (272) are provided with interconnected ventilation holes (273). An air outlet groove (274) is provided on the inner side of the silicone layer (272), and the air outlet groove (274) is connected to the ventilation hole (273).

2. The breathable and comfortable prosthetic orthotic brace according to claim 1, characterized in that: The projected shape of the lower support plate (21) is circular. The lower support plate (21) is located on the central axis of the prosthesis body (1). There are several spring telescopic rods (22) at the top of the lower support plate (21). The several lower support plates (21) are arranged in a circular pattern at equal intervals. The telescopic ends of the spring telescopic rods (22) are fixedly connected to the lower surface of the upper support plate (24).

3. The breathable and comfortable prosthetic orthotic brace according to claim 1, characterized in that: The upper support plate (24) is located above the lower support plate (21). The upper support plate (24) and the lower support plate (21) are located on the same central axis. The lower surface of the upper support plate (24) is in contact with the upper surface of the outer airbag (231). The middle of the lower surface of the upper support plate (24) is in contact with the upper surface of the inner airbag (232).

4. The breathable and comfortable prosthetic orthotic brace according to claim 1, characterized in that: The inner side of the inner airbag (232) is connected to the inner side of the air outlet tube (233). The top end of the air outlet tube (233) extends to the bottom end of the inner side of the orthotic tube (25). The air outlet tube (233) is slidably connected to the orthotic tube (25). The bottom end of the inner airbag (232) is fixedly connected to a first one-way air inlet tube (235). A one-way valve is installed in the middle of the first one-way air inlet tube (235).

5. The breathable and comfortable prosthetic orthotic brace according to claim 1, characterized in that: The external airbag (231) is ring-shaped. The inner side of the external airbag (231) is connected to the inner side of the spiral soft tube (271) through the inner side of the air outlet hose (234). The air outlet hose (234) is located at the bottom of the inner side of the orthotic tube (25). A second one-way air inlet pipe (236) is fixedly connected to the bottom of the outer side of the external airbag (231). The second one-way air inlet pipe (236) is located above the first one-way air inlet pipe (235). A one-way valve is installed in the middle of the second one-way air inlet pipe (236).

6. The breathable and comfortable prosthetic orthotic brace according to claim 1, characterized in that: The connecting layer (26) is located at the top inside the orthopedic tube (25). The shape of the silicone layer (272) is adapted to the shape of the spiral soft tube (271). The silicone layer (272) and the spiral soft tube (271) are located on the same axis.

7. The breathable and comfortable prosthetic orthotic brace according to claim 1, characterized in that: The number of the air vents (273) is set to a certain number, and the air vents (273) are arranged in a spiral shape at equal intervals.