Adjustable soft silicone sleeve for prosthetic limb

By designing an adjustable silicone sleeve for prostheses, and utilizing the combination of Velcro and pressure blocks, the gap between the silicone sleeve body and the prosthesis receiving cavity can be adjusted, solving the problem that traditional silicone sleeves for prostheses cannot adapt to changes in body moisture, thus improving the comfort and stability of wearing the prosthesis.

CN224523348UActive Publication Date: 2026-07-21丁宁宁
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
丁宁宁
Filing Date
2025-03-20
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional silicone sleeves for prostheses cannot adjust to changes in body moisture content, leading to discomfort when worn in the morning and afternoon, and failing to meet the needs for comfort and stability throughout the day.

Method used

An adjustable silicone sleeve for prostheses has been designed, comprising a silicone sleeve body, an adjustment band, Velcro, a telescopic cavity, and a pressure block. The gap between the silicone sleeve body and the prosthesis receiving cavity can be adjusted by the Velcro and the pressure block. The thickness of the silicone sleeve can be adjusted by a one-way air inlet valve and an air pump or water injection pipe.

Benefits of technology

It achieves automatic adjustment of the silicone sleeve thickness based on changes in body moisture, improving the comfort and stability of wearing the prosthesis and adapting to different conditions in the morning and afternoon.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to artificial limb silica gel cover technical field, and disclose a kind of adjustable artificial limb soft silica gel cover, including silica gel cover main part and adjusting band, the outside of silica gel cover main part is provided with magic tape wool surface, the inside of adjusting band is provided with the magic tape prickle surface compatible with magic tape wool surface, multiple telescopic cavities are opened in the adjusting band, the communicating cavity that is communicated with multiple telescopic cavities is opened in the adjusting band, after user sleeve joint is in amputation with silica gel cover main part, the magic tape prickle surface of adjusting band inside is adhered with the magic tape wool surface of silica gel cover main part outside, and silica gel cover main part is placed with the adjusting band of its outside in artificial limb receiving cavity, at this moment can be needed according to pressure pressing pressure block, so that gas fills telescopic cavity, to adjust the purpose of adjusting band thickness, further can be well adjusted the purpose of gap size between silica gel cover main part and receiving cavity, further guarantee the comfort and stability when user wears artificial limb.
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Description

Technical Field

[0001] This utility model relates to the field of silicone sleeve technology for prostheses, specifically an adjustable soft silicone sleeve for prostheses. Background Technology

[0002] The silicone sleeve of a prosthesis is a buffer layer worn between the residual limb and the prosthesis socket. The soft silicone can effectively protect the residual limb and reduce friction and pressure pain.

[0003] Because the thickness of traditional silicone sleeves for prostheses is fixed and cannot be adjusted, and the water content of the human body is different in the morning and evening, amputees usually experience swelling of the residual limb in the morning, which then shrinks in the afternoon after a day of activity. This causes prostheses to feel comfortable when worn in the morning, but the socket may feel loose in the afternoon, making it impossible to make adjustments according to the actual situation. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an adjustable soft silicone sleeve for prostheses, thus solving the aforementioned technical problems.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: an adjustable prosthetic soft silicone sleeve, comprising a silicone sleeve body and an adjustment band, wherein the outer side of the silicone sleeve body is provided with a Velcro surface, the inner side of the adjustment band is provided with a Velcro barbed surface adapted to the Velcro surface, the adjustment band has multiple telescopic cavities, the adjustment band has a connecting cavity communicating with the multiple telescopic cavities, the adjustment band has a protruding connecting tube communicating with the connecting cavity, the connecting tube is connected to a flexible tube, and a pressure block is connected to the flexible tube.

[0006] Preferably, the pressurizing block has a cavity, and one end of the pressurizing block is provided with a one-way air intake valve communicating with the cavity.

[0007] Preferably, a plastic sealing layer is provided on the inner wall of both the connecting cavity and the telescopic cavity.

[0008] Preferably, a connecting block is bonded to the outer side of the adjusting belt, the connecting block has a slot, and the pressure block has a protruding locking block that matches the slot.

[0009] Preferably, the hose on the connecting pipe is detachable and can be replaced with a water injection pipe.

[0010] Preferably, the pressurizing block is removable and replaceable with an air pump.

[0011] Preferably, the plurality of the telescopic cavities are arranged at axial intervals within the adjusting belt.

[0012] Compared with the prior art, this utility model provides an adjustable soft silicone sleeve for prostheses, which has the following beneficial effects: Through the cooperation of structures such as the adjustment band, the telescopic cavity, and the pressure block, this utility model allows the user to attach the Velcro barbed side of the adjustment band to the Velcro rough side of the silicone sleeve body after the user has put the silicone sleeve body on the amputation site. The silicone sleeve body and the adjustment band on the outside are then placed into the prosthesis receiving cavity. At this time, the pressure block can be pressed as needed to fill the telescopic cavity with air, thereby adjusting the thickness of the adjustment band. This allows for better adjustment of the gap between the silicone sleeve body and the receiving cavity, further ensuring the user's comfort and stability when wearing the prosthesis. Attached Figure Description

[0013] Figure 1 This is a schematic diagram showing the unfolded main structure of the present utility model; Figure 2 This is a bottom cross-sectional view of the silicone sleeve body and adjustment band of this utility model. Figure 3 This is a side cross-sectional view of the silicone sleeve body and adjustment band of this utility model. Figure 4 This is a cross-sectional structural diagram of the pressure block of this utility model.

[0014] The components include: 1. Silicone sleeve body; 2. Adjustment belt; 3. Connecting block; 4. Slot; 5. Pressurizing block; 6. One-way air intake valve; 7. Connecting pipe; 8. Velcro rough surface; 9. Velcro barbed surface; 10. Receiving cavity connecting rod; 11. Flexible hose; 12. Connecting cavity; 13. Telescopic cavity; 14. Hollow cavity; 15. Locking block. Detailed Implementation

[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0016] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Please see Figure 1-4 An adjustable silicone prosthesis sleeve includes a silicone sleeve body 1 and an adjustment band 2. The outer side of the silicone sleeve body 1 is provided with a Velcro surface 8, and the inner side of the adjustment band 2 is provided with a Velcro barbed surface 9 that matches the Velcro surface 8. The adjustment band 2 has multiple telescopic cavities 13 and a connecting cavity 12 that communicates with the multiple telescopic cavities 13. A connecting tube 7 that communicates with the connecting cavity 12 protrudes from the adjustment band 2. A flexible tube 11 is connected to the connecting tube 7, and a pressure block 5 is connected to the flexible tube 11.

[0019] Through the coordinated arrangement of the adjustable band 2, the telescopic cavity 13, and the pressure block 5, after the user places the silicone sleeve body 1 on the amputation site, the Velcro barbed surface 9 on the inner side of the adjustable band 2 is bonded to the Velcro rough surface 8 on the outer side of the silicone sleeve body 1. The silicone sleeve body 1 and the adjustable band 2 are then placed together into the prosthesis receiving cavity. At this time, the pressure block 5 can be pressed as needed to fill the telescopic cavity 13 with air, thereby adjusting the thickness of the adjustable band 2. This allows for precise adjustment of the gap between the silicone sleeve body 1 and the receiving cavity, further ensuring the user's comfort and stability when wearing the prosthesis.

[0020] Specifically, in this embodiment, a cavity 14 is provided inside the pressurizing block 5, and a one-way air intake valve 6 communicating with the cavity 14 is provided at one end of the pressurizing block 5.

[0021] By using the one-way air intake valve 6, air can be sent from the cavity 14 into the telescopic cavity 13 when the pressurizing block 5 is pressed intermittently, thereby adjusting the thickness of the adjustment belt 2 through the expansion of the telescopic cavity 13.

[0022] Specifically, in this embodiment, plastic sealing layers are provided on the inner walls of both the connecting cavity 12 and the telescopic cavity 13 to ensure the sealing of the connecting cavity 12 and the telescopic cavity 13.

[0023] Specifically, in this embodiment, a docking block 3 is bonded to the outer side of the adjusting belt 2, and a slot 4 is provided on the docking block 3. A card block 15 that is adapted to the slot 4 is protruding on the pressure block 5.

[0024] By setting up docking block 3 and locking block 15, it is easy to lock the pressure block 5 into the locking slot 4 on docking block 3.

[0025] Specifically, in this embodiment, the flexible hose 11 on the connecting pipe 7 can be detached and replaced with a water injection pipe. By replacing the flexible hose 11 with a water injection pipe, cold or hot water can be injected into the telescopic cavity 13 in the adjustment belt 2 in hot summer or cold winter to improve the user's comfort when wearing it. When the hot water cools down, it can be released or replaced with new hot water to ensure the temperature of the adjustment belt 2.

[0026] Specifically, in this embodiment, the pressurizing block 5 can be detached and replaced with an air pump.

[0027] By replacing the pressure block 5 with an air pump, air can be pumped into the telescopic cavity 13, eliminating the need for repeated pressing of the pressure block 5 and improving efficiency.

[0028] Specifically, in this embodiment, multiple telescopic cavities 13 are arranged axially at intervals within the adjusting belt 2, which can ensure the uniformity of the thickness change of the adjusting belt 2 after inflation.

[0029] 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. An adjustable soft silicone sleeve for a prosthesis, comprising a silicone sleeve body and an adjustment band, characterized in that: The outer side of the silicone sleeve body is provided with a hook and loop surface, and the inner side of the adjustment band is provided with a hook and loop barbed surface that matches the hook and loop surface. The adjustment band has multiple telescopic cavities and a connecting cavity that communicates with the multiple telescopic cavities. A connecting tube that communicates with the connecting cavity is protruding on the adjustment band. A flexible tube is connected to the connecting tube, and a pressure block is connected to the flexible tube.

2. The adjustable prosthetic soft silicone sleeve according to claim 1, characterized in that: The pressurizing block has a cavity inside, and a one-way air intake valve communicating with the cavity is provided at one end of the pressurizing block.

3. The adjustable prosthetic soft silicone sleeve according to claim 1, characterized in that: Both the connecting cavity and the telescopic cavity have plastic sealing layers on their inner walls.

4. The adjustable prosthetic soft silicone sleeve according to claim 1, characterized in that: The outer side of the adjustment belt is bonded with a docking block, which has a slot. The pressure block has a protruding locking block that matches the slot.

5. The adjustable prosthetic soft silicone sleeve according to claim 1, characterized in that: The hose on the connecting pipe can be detached and replaced with a water injection pipe.

6. The adjustable prosthetic soft silicone sleeve according to claim 1, characterized in that: The pressurizing block can be removed and replaced with an air pump.

7. The adjustable prosthetic soft silicone sleeve according to claim 1, characterized in that: The multiple telescopic cavities are arranged axially at intervals within the adjustment belt.