A type of lower leg prosthesis taking frame

Abstract

This utility model discloses a lower leg prosthesis taking frame, including a taking cylinder body, a lower conical cylinder mounted at the bottom end of the taking cylinder body, a fixing ring mounted at the top end of the taking cylinder body, and a protective padding layer mounted inside the taking cylinder body; the taking cylinder body includes taking cylinder a and taking cylinder b arranged opposite to each other, and the protective padding layer includes a leg guard plate a mounted on the inner wall of taking cylinder a and a leg guard plate b mounted on the inner wall of taking cylinder b; the outer walls of both leg guard plates a and b are equipped with adaptation mechanisms, and the inner walls of both leg guard plates a and b are equipped with sponge padding layers; the lower end of the inside of taking cylinder a and taking cylinder b is equipped with a bearing cylinder, and the top end of the lower conical cylinder is equipped with a connecting cylinder, with the bearing cylinder inserted into the connecting cylinder; the design of this lower leg prosthesis taking frame better adapts to the structure of the human leg, which is wider at the top and narrower at the bottom, providing a more realistic fixation and support effect for the patient, reducing pressure on the patient's leg, and enhancing the use effect of the patient during prosthesis taking.

Description

Technical Field

[0001] This utility model relates to the field of prosthetic molding technology, specifically to a lower leg prosthetic molding frame. Background Technology

[0002] A lower leg prosthesis is a prosthesis used for lower leg amputations, suitable for patients who have had amputations ranging from 8 cm below the knee joint space to 7 cm above the medial malleolus. A lower leg prosthesis consists of four parts: the socket, the suspension section, the lower leg connecting section, the prosthetic foot, and the ankle. The socket is the link between the residual limb and the prosthesis; it transmits force and movement by containing the residual limb. The suspension section (supra-knee ring) suspends the prosthesis from the residual limb. The prosthetic foot not only meets aesthetic requirements but also satisfies the requirements for walking function.

[0003] However, the fixation method in the existing prosthetic frame is very poor in terms of leg fixation and causes a very poor experience for patients. It may even cause leg problems due to the uncoordinated clamping effect. Therefore, the existing technology needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a lower leg prosthesis taking frame to solve the problem that the fixation method in the existing prosthesis taking frames mentioned in the background art has a very poor fixation effect on the leg, and causes a very poor experience for the patient. It may even cause leg problems due to the uncoordinated clamping effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lower leg prosthesis taking frame, comprising a taking cylinder body, a lower conical cylinder assembled at the bottom end of the taking cylinder body, a fixing ring assembled at the top end of the taking cylinder body, and a protective padding layer assembled inside the taking cylinder body; the taking cylinder body includes taking cylinder a and taking cylinder b arranged opposite to each other, and the protective padding layer includes a leg guard plate a installed on the inner wall of taking cylinder a and a leg guard plate b installed on the inner wall of taking cylinder b;

[0006] The outer walls of both leg guards a and b are equipped with adaptation mechanisms, and the inner walls of both leg guards a and b are equipped with sponge padding layers.

[0007] The lower ends of the forming cylinders a and b are fitted with bearing cylinders, and the top of the lower cone cylinder is fitted with a connecting cylinder, with the bearing cylinder inserted into the connecting cylinder.

[0008] The main bodies of the fixed ring forming cylinder are connected by a snap-fit ​​structure, and the bottom end of the lower cone cylinder is equipped with a prosthetic footplate.

[0009] As a preferred embodiment of the prosthetic leg taking frame of this utility model, the adaptation mechanism includes an outer plate, a middle plate, and an inner plate. The four corners of the outer plate and the middle plate are hinged to each other, and springs are hinged to the four corners of the other side of the middle plate.

[0010] As a preferred embodiment of the prosthetic leg taking frame of this utility model, the other ends of the four springs are hinged to the four corners of one side of the inner plate.

[0011] As a preferred embodiment of the prosthetic leg taking frame of this utility model, the locking structure includes locking blocks installed on both sides of the bottom end of the fixing ring and locking grooves opened at the top of the taking cylinder a and the taking cylinder b. The locking blocks are locked inside the locking grooves, and the ends of the locking blocks are provided with arc surfaces.

[0012] As a preferred embodiment of the prosthetic leg taking frame of this utility model, the outer walls on both sides of the locking block are provided with inclined convex surfaces, and the inner walls on both sides of the locking groove are provided with inclined concave surfaces.

[0013] As a preferred embodiment of the prosthetic leg taking frame of this utility model, the card block has a filling cavity inside, and an elastic element is installed inside the filling cavity.

[0014] As a preferred embodiment of the prosthetic leg taking frame of this utility model, the outer wall of the bearing cylinder is provided with external threads, the inner wall of the connecting cylinder is provided with internal threads, a limit ring is provided on the outer side of the top of the bearing cylinder, and the limit ring is located inside the main body of the taking cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the design of the lower leg prosthesis taking frame is reasonable;

[0016] This invention incorporates a protective padding layer inside the prosthesis tube, which can be adjusted to fit the shape and size of the user's lower leg. This better adapts to the upper-to-lower leg structure, providing more effective fixation and support, reducing pressure on the patient's leg, and enhancing the prosthesis's effectiveness during prosthesis taking. Attached Figure Description

[0017] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the unfolded form of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective padding layer of this utility model;

[0020] Figure 4 This is a schematic diagram of the adaptive mechanism of this utility model;

[0021] Figure 5This is a schematic diagram of the snap-fit ​​structure of this utility model.

[0022] In the diagram: 1. Forming cylinder body; 101. Forming cylinder a; 102. Forming cylinder b; 2. Fixing ring; 3. Protective padding layer; 301. Leg guard plate a; 302. Leg guard plate b; 4. Lower cone cylinder; 5. Prosthetic foot plate; 6. Snap-fit ​​structure; 7. Limiting ring; 8. Bearing cylinder; 9. Connecting cylinder; 10. Internal thread; 11. External thread; 12. Adaptation mechanism; 121. Inner plate; 122. Spring; 123. Middle plate; 124. Outer plate; 13. Sponge padding layer; 14. Locking block; 15. Locking groove; 16. Filling cavity; 17. Arc surface; 18. Elastic element; 19. Sloping convex surface; 20. Sloping concave surface. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] In this technical solution, a lower leg prosthesis taking frame includes a taking cylinder body 1. A lower conical cylinder 4 is fitted to the bottom end of the taking cylinder body 1, and a fixing ring 2 is fitted to the top end of the taking cylinder body 1. A protective padding layer 3 is fitted inside the taking cylinder body 1. The taking cylinder body 1 includes taking cylinders a101 and b102 arranged opposite to each other. The protective padding layer 3 includes a leg guard plate a301 installed on the inner wall of taking cylinder a101 and a leg guard plate b30 installed on the inner wall of taking cylinder b102. 2; The outer walls of leg guards a301 and b302 are both equipped with adaptation mechanisms 12, and the inner walls of leg guards a301 and b302 are both equipped with sponge pads 13; The lower inner ends of the molding cylinders a101 and b102 are equipped with bearing cylinders 8, and the top end of the lower cone cylinder 4 is equipped with a connecting cylinder 9, and the bearing cylinder 8 is inserted into the connecting cylinder 9; the fixing ring 2 and the molding cylinder body 1 are connected by a snap-fit ​​structure 6, and the bottom end of the lower cone cylinder 4 is equipped with a prosthetic footplate 5.

[0026] In this technical solution, the forming cylinder body 1 and the lower cone cylinder 4 are designed with the human lower leg in mind. A protective pad 3 is set inside the forming cylinder body 1 to support and protect the user's lower leg. The forming cylinder body 1 is composed of forming cylinders a101 and b102 arranged opposite each other on the left and right. The protective pad 3 is composed of leg guards a301 and b302 arranged opposite each other on the left and right. The leg guards a301 and forming cylinder a101 are connected by an adaptation mechanism 12. The leg guards b302 and forming cylinder b102 are connected by an adaptation mechanism 12. The sponge pad 13 set on the inner wall of the leg guards 301 and b302 can protect the user's lower leg. The lower cone cylinder 3 is installed at the bottom of the forming cylinder body 1 through a bearing cylinder 8. The forming cylinders a101 and b102 arranged opposite each other are fixed by a fixing ring 2 at the top.

[0027] In some technical solutions, the adaptation mechanism 12 includes an outer plate 124, a middle plate 123 and an inner plate 121. The four corners of the outer plate 124 and the middle plate 123 are hinged to each other. Springs 122 are hinged to the four corners of the other side of the middle plate 123. The other ends of the four springs 122 are hinged to the four corners of one side of the inner plate 121.

[0028] In this technical solution, the distance between the protective pad 3 and the molding cylinder body can be adjusted by the mutual hinge of three plates and springs.

[0029] In some technical solutions, the snap-fit ​​structure 6 includes snap-fit ​​blocks 14 installed on both sides of the bottom end of the fixing ring 2 and snap-fit ​​grooves 15 opened at the top of the molding cylinder a101 and molding cylinder b102. The snap-fit ​​blocks 14 are snapped into the inside of the snap-fit ​​grooves 15, and the ends of the snap-fit ​​blocks 14 are provided with arc surfaces 17.

[0030] In this technical solution, the fixing ring 2 can be installed on the upper end of the forming cylinder a101 and forming cylinder b102 by inserting the locking block 14 into the locking groove 15, and the arc surface 17 facilitates the locking block 14 into the locking groove 15.

[0031] In some technical solutions, the outer walls on both sides of the card block 14 are provided with inclined convex surfaces 19, and the inner walls on both sides of the card slot 15 are provided with inclined concave surfaces 20.

[0032] In this technical solution, the fit strength between the card block 14 and the card slot 15 can be improved by setting the inclined convex surface 19 and the inclined concave surface 20.

[0033] In some technical solutions, the card block 14 has a filling cavity 16 inside, and an elastic element 18 is installed inside the filling cavity 16.

[0034] In this technical solution, the elasticity of the card block 14 can be improved by the elastic element 18.

[0035] In some technical solutions, the outer wall of the bearing cylinder 8 is provided with an external thread 11, the inner wall of the connecting cylinder 9 is provided with an internal thread 10, and a limit ring 7 is provided on the outer top of the bearing cylinder 8. The limit ring 7 is located inside the body of the forming cylinder 1.

[0036] In this technical solution, the connecting cylinder 9 and the bearing cylinder 8 are connected by the cooperation of the external thread 11 and the internal thread 10, and the bearing cylinder 8 can be fixed inside the molding cylinder body 1 by the setting of the limiting ring 7.

[0037] Working principle: In use, first, pass the fixing ring 2 through the user's foot. Then, put the forming cylinder a101 and forming cylinder b102 on both sides of the user's calf and fix them. The calf is supported by the protective padding layer 3. Then, pass the bearing cylinder 8 through the user's calf and put the forming cylinder a101 and forming cylinder b102 on the outside of the bearing cylinder 8. Then, pass the lower cone cylinder 4 and the connecting cylinder 9 through the user's foot and connect the connecting cylinder 9 and the bearing cylinder 8.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A calf prosthesis taking frame, comprising a taking cylinder body (1), characterized in that, The bottom end of the forming cylinder body (1) is equipped with a lower cone cylinder (4), the top end of the forming cylinder body (1) is equipped with a fixing ring (2), and the inside of the forming cylinder body (1) is equipped with a protective pad layer (3). The main body (1) of the molding cylinder includes molding cylinder a (101) and molding cylinder b (102) arranged opposite to each other, and the protective pad layer (3) includes leg guard plate a (301) installed on the inner wall of molding cylinder a (101) and leg guard plate b (302) installed on the inner wall of molding cylinder b (102); The outer walls of the leg guard a (301) and the leg guard b (302) are both equipped with an adaptation mechanism (12), and the inner walls of the leg guard a (301) and the leg guard b (302) are both equipped with a sponge pad layer (13). The lower end of the inner part of the forming cylinder a (101) and the forming cylinder b (102) is equipped with a bearing cylinder (8), and the top end of the lower cone cylinder (4) is equipped with a connecting cylinder (9). The bearing cylinder (8) is inserted into the connecting cylinder (9). The fixing ring (2) and the molding cylinder body (1) are connected by a snap-fit ​​structure (6), and the bottom end of the lower cone cylinder (4) is equipped with a prosthetic foot plate (5).

2. The lower leg prosthesis taking frame according to claim 1, characterized in that, The adaptation mechanism (12) includes an outer plate (124), a middle plate (123) and an inner plate (121). The four corners of the outer plate (124) and the middle plate (123) are hinged to each other, and springs (122) are hinged to the four corners of the other side of the middle plate (123).

3. The lower leg prosthesis taking frame according to claim 2, characterized in that, The other ends of the four springs (122) are hinged to the four corners of one side of the inner plate (121).

4. The lower leg prosthesis taking frame according to claim 1, characterized in that, The snap-fit ​​structure (6) includes snap-fit ​​blocks (14) installed on both sides of the bottom end of the fixing ring (2) and snap-fit ​​grooves (15) opened at the top of the molding cylinder a (101) and molding cylinder b (102). The snap-fit ​​blocks (14) are snapped into the inside of the snap-fit ​​grooves (15), and the ends of the snap-fit ​​blocks (14) are provided with arc surfaces (17).

5. A lower leg prosthesis taking frame according to claim 4, characterized in that, The outer walls of both sides of the card block (14) are provided with inclined convex surfaces (19), and the inner walls of both sides of the card slot (15) are provided with inclined concave surfaces (20).

6. The lower leg prosthesis taking frame according to claim 5, characterized in that, The card block (14) has a filling cavity (16) inside, and an elastic element (18) is installed inside the filling cavity (16).

7. The lower leg prosthesis taking frame according to claim 1, characterized in that, The outer wall of the bearing cylinder (8) is provided with an external thread (11), the inner wall of the connecting cylinder (9) is provided with an internal thread (10), a limiting ring (7) is provided on the outer side of the top end of the bearing cylinder (8), and the limiting ring (7) is located inside the body of the molding cylinder (1).

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