Simple prosthetic socket transition pad
By designing a simple prosthetic receptive cavity transition pad, adopting a removable elastic pad and a fixed structure, the problem of loosening of the prosthetic receptive cavity in the early stage of wear is solved, achieving a more stable and comfortable wear effect, while reducing the financial burden of the family.
Patent Information
- Application Number
- CN202421670388.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The existing prosthetic receiving cavity is prone to loosening at the beginning of wear, resulting in the prosthetic not fitting, which may cause the formation of synovial sacs and the risk of secondary surgery, and the high cost of silicone sleeves is difficult to accept.
A simple prosthetic receiving cavity transition pad is designed, using a removable elastic pad and a fixing structure. The elastic pad is made of washable, non-slip silicone material and is fixed in the prosthetic receiving cavity through a film layer and a connecting belt.
Through this technical solution, patients can easily disassemble and clean the elastic pads themselves, reduce the burden on the family, and prevent the elastic pads from being displaced through the fixed structure, improving wear stability and comfort.
Smart Images

Figure CN222929888U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of prosthetic socket transition pads, in particular to a simple prosthetic socket transition pad. Background Art
[0002] The prosthetic socket is the link between the residual limb and the prosthesis and plays a crucial role in the prosthesis. It has the functions of suspending the prosthesis, accommodating the residual limb, and transmitting motion and force. The realization of these functional roles will stimulate the skin and muscle tissues of the residual limb. If not properly handled, it will cause discomfort or even limb injury to the amputee. Wearing a silicone inner liner can provide a comfortable feeling for the amputee, effectively protect muscle tissues and the skin surface, and help suspend the socket.
[0003] For patients who have just had an amputation, it will take about one year. During this period, the leg will become thinner, and during the wearing process, it will become looser and less fitting. In severe cases, the front end of the prosthesis will be stuck in the front hole. After long-term wearing, negative pressure will suck out a synovial bursa, resulting in a second operation. Or they can pay out of their own pocket to make a silicone sleeve, but doctors do not recommend that novice wearers make a silicone sleeve. Although wearing it comfortably can reduce wear, the cost is relatively high for many disabled families. Content of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides a simple prosthetic socket transition pad, which solves the problems raised in the above background art.
[0005] The technical solution of the utility model is as follows:
[0006] A simple prosthetic socket transition pad includes an elastic pad detachably arranged on the inner bottom wall of the prosthetic socket. A film layer is fixed to the edge of the elastic pad, and a fixing structure is arranged at the bottom of the elastic pad.
[0007] Furthermore, the intersection of the elastic pad and the film layer is adhesively fixed through a connecting band.
[0008] Furthermore, a fixing cavity is arranged at the bottom end of the elastic pad, a fixing shell is fixedly connected inside the fixing cavity, a prosthetic connecting head is fixedly connected to the bottom end of the prosthetic socket, and a fixing structure penetrating the prosthetic connecting head is arranged inside the fixing shell.
[0009] Furthermore, the fixing structure includes two fixing rods and a connecting rod. The connecting rod is screwed onto the prosthetic connecting head, and the end of the connecting rod is hinged to the fixing rod.
[0010] Furthermore, the elastic pad is made of a washable and anti-slip silicone material.
[0011] Compared with the prior art, the beneficial effects of the technical solution provided by the present utility model are as follows: By providing a detachable elastic pad, it is convenient for patients to disassemble and clean it by themselves, ensuring the hygiene of the internal environment. The elastic pad uses common silicone materials on the market with low cost and replaceability, reducing the burden on families; By installing the elastic pad on the fixed structure, it prevents the elastic pad from shifting when the patient walks, causing inconvenience to the patient. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic cross-sectional view of a simple prosthetic socket transition pad;
[0013] Figure 2 It is a schematic structural view of the fixed structure;
[0014] Figure 3 It is a partial enlarged view of A;
[0015] Figure 4 It is a schematic structural view of the elastic pad;
[0016] In the figure: 1, prosthetic socket; 2, elastic pad; 3, film layer; 4, connecting band; 5, fixed shell; 6, fixed cavity; 7, fixed rod; 8, prosthetic connecting head; 9, connecting rod. SPECIFIC EMBODIMENTS
[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0018] Refer to Figures 1-4 As shown, a simple prosthetic socket transition pad includes an elastic pad 2 detachably arranged on the inner bottom wall of the prosthetic socket 1. A film layer 3 is fixed on the edge of the elastic pad 2. A fixed structure is arranged at the bottom of the elastic pad 2. The intersection of the elastic pad 2 and the film layer 3 is adhesively fixed through a connecting band 4.
[0019] Specifically, the elastic pad 2 adopts a silicone breast patch in the prior art. The silicone breast patch has a structure that is thick in the middle and thin at the edges, and a bowl-shaped structure is formed on the inner side to better wrap the front end of the patient's amputation. The patient can select a silicone breast patch of a suitable size according to the diameter of the front end of their own amputation. By using the silicone breast patch, the cost is relatively low, reducing the expenses of many disabled families, and the patient can replace the silicone breast patch over time; the film layer 3 is a medical sterile dressing. When the elastic pad 2 is fixed for the first time, the film layer 3 is used to bond and fix the elastic pad 2 to the prosthetic socket 1. In order to increase the friction when the patient wears the prosthesis and make the inner wall of the prosthetic socket 1 fit more closely to the patient's amputation so that it does not shake during walking, it is sequentially pasted upward along the first film layer 3 until the inlet position of the prosthetic socket 1; when the elastic pad 2 is fixed for the second time, a fixing structure is connected and fixed at the bottom of the elastic pad 2 to reinforce the position of the bottom of the elastic pad 2 and make the whole more stable.
[0020] As Figure 1 shown, a fixing cavity 6 is provided at the bottom end of the elastic pad 2, a fixing shell 5 is fixedly connected in the fixing cavity 6, a prosthetic connector 8 is fixedly connected to the bottom end of the prosthetic socket 1, and a fixing structure passing through the prosthetic connector 8 is provided in the fixing shell 5.
[0021] Specifically, a groove with the same size and structure as the fixing shell 5 is provided at the bottom end of the elastic pad 2, and the upper end of the fixing shell 5 has the same curvature as the middle position of the upper end of the elastic pad 2. When the patient is in a standing state, the amputation end applies downward pressure, which can make the amputation end fit better with the fixing shell 5; the fixing cavity 6 is a V-shaped structure, the prosthetic connector 8 is an inverted umbrella-shaped structure, the cylinder connected to the upper end is inserted into the prosthetic socket 1, and a through hole is provided through the prosthetic connector 8; the fixing structure passes through the through hole and is stuck in the fixing cavity 6 to fix the elastic pad 2 for the second time.
[0022] As Figure 2 and Figure 3 shown, the fixing structure includes two fixing rods 7 and a connecting rod 9. The connecting rod 9 is screwed to the prosthetic connector 8, and the end of the connecting rod 9 is hinged to the fixing rod 7.
[0023] Specifically, the external thread provided at the upper end of the connecting rod 9 is matched with the internal thread in the through hole. A boss with a diameter smaller than that of the connecting rod 9 is fixedly connected to the top end of the connecting rod 9. Card slots are provided on both sides of the boss. The fixing rod 7 is clamped in the card slots and connected through a hinge shaft. Grooves are provided on the opposite surfaces of the two fixing rods 7. One side surface of the groove communicates with the boss. A tension spring is arranged in the groove. One end of the tension spring is fixed to the other side surface of the groove, and the other end is fixed to the boss. The maximum angle between the two fixing rods 7 on both sides is 180 degrees. In the initial state, the two fixing rods 7 are in a horizontal state. Before being placed into the fixed cavity 6, an external force is first used to change the two fixing rods 7 into a vertical state, insert them from the through hole and rotate the connecting rod upward. At this time, the two fixing rods 7 on both sides tilt toward both sides under the action of the tension until the two fixing rods 7 abut against the inside of the fixed cavity 6. The bottom end of the connecting rod 9 can be connected to a prosthetic footplate.
[0024] As Figure 4 shown, the elastic pad 2 is made of a washable and anti-slip silicone material. After use, it is convenient for the patient to wash it by himself to ensure hygiene, prevent sweating and slipping at the front section of the amputation, and affect the use effect of the patient.
[0025] The working process of a simple prosthetic socket transition pad provided by the present invention is as follows:
[0026] The elastic pad 2 is stuffed into the bottom end of the prosthetic socket 1. The connecting rod 9 passes through the through hole until the fixing rod 7 abuts against the inside of the fixed cavity 6. The film layer 3 is bonded to the edge of the elastic pad 2, and the patient's leg can be put in.
[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.
Claims
1. A simple prosthetic socket transition pad, comprising a removable elastic pad (2) arranged on the inner bottom wall of a prosthetic socket (1), characterized in that: A film layer (3) is fixed to the edge of the elastic pad (2), and a fixing structure is provided at the bottom of the elastic pad (2).
2. The simplified prosthetic socket transition pad according to claim 1, characterized in that: The intersection of the elastic pad (2) and the film layer (3) is bonded and fixed by a connecting tape (4).
3. The simplified prosthetic socket transition pad according to claim 1, characterized in that: The bottom end of the elastic pad (2) is provided with a fixing cavity (6), a fixing shell (5) is fixedly connected inside the fixing cavity (6), the bottom end of the prosthesis receiving cavity (1) is fixedly connected with a prosthesis connecting head (8), and a fixing structure penetrating the prosthesis connecting head (8) is provided inside the fixing shell (5).
4. The simplified prosthetic socket transition pad according to claim 1, characterized in that: The fixing structure comprises two fixing rods (7) and a connecting rod (9); the connecting rod (9) is spirally connected to the prosthesis connecting head (8); and the end of the connecting rod (9) is hinged to the fixing rod (7).
5. The simplified prosthetic socket transition pad according to claim 2, characterized in that: The elastic pad (2) is made of washable, non-slip organic silicon material.