Multi-axis structure left-right toe separation heel height adjustable prosthetic foot plate

Abstract

The utility model discloses a multi-axis structure left-right toe-separation heel height adjustable prosthetic foot sole, which comprises a full-length foot sole plate, the upper surface of the full-length foot sole plate is fixedly connected with a middle plate, the upper surface of the middle plate is fixedly connected with an upper plate, the rear end of the middle plate is rotatably connected with a connecting cylinder, the inner part of the connecting cylinder is in threaded connection with a threaded rod, and the threaded rod is in threaded connection with the middle plate. The top end of the surface of the threaded rod is fixedly connected with a twisting handle, and the top end of the threaded rod is rotationally connected with a connecting block. According to the multi-shaft structure left-right toe separation heel height adjustable artificial limb foot plate, in the using process, a worker twists a twisting handle, a threaded rod can be driven to ascend and descend, then the height of a foot root can be adjusted, the equivalent height of a heel can be adjusted conveniently after a shoe is replaced, the situation that an artificial limb leans forwards and backwards is avoided, and then the wearing comfort is improved; and the safety in the movement process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial limb foot plates, in particular to an artificial limb foot plate with a multi-axis structure and adjustable toe and heel height. Background Art

[0002] Prosthetic foot is an important component of prosthesis, which simulates the function of human foot and provides amputees with support, walking and balance ability. Prosthetic foot can be classified according to different functions and structural characteristics. The price of prosthetic foot varies according to factors such as material, brand, function, etc. The price of prosthetic foot made of polyurethane material is relatively low, while the price of foot made of high-performance materials such as carbon fiber is higher.

[0003] In the existing technology, when choosing a prosthetic foot, patients need to make comprehensive considerations based on actual needs. However, most existing prosthetic feet are simple in structure during use and do not have shoe adjustment functions. After changing shoes, the heels are prone to unequal heights, causing the prosthesis to lean forward or backward, reducing wearing comfort. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a multi-axis structure with left and right toe-split and adjustable heel height prosthetic foot, which solves the problem that after changing shoes, the prosthetic foot is prone to unequal heel heights, causing the prosthesis to lean forward or backward, reducing wearing comfort.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-axis structure left and right split toe heel height adjustable prosthetic foot, comprising a full-length sole plate, the upper surface of the full-length sole plate is fixedly connected to a middle plate, the upper surface of the middle plate is fixedly connected to an upper plate, the rear end of the middle plate is rotatably connected to a connecting tube, the internal thread of the connecting tube is connected to a threaded rod, the top end of the threaded rod surface is fixedly connected to a twist handle, and the top end of the threaded rod is rotatably connected to a connecting block;

[0006] The rear end of the upper plate is rotatably connected to a connecting seat, the top of the connecting seat is rotatably connected to a quadrangular pyramid connecting head, the top of the connecting block is rotatably connected to the top of the rear side of the connecting seat, and the rear side of the connecting tube is detachably connected to a protective shell covering the connecting tube, the threaded rod and the twist handle.

[0007] Furthermore, the bottom end of the connecting cylinder is rotatably connected to a second loading member adapted to the middle plate, and the second loading member is detachably connected to the rear end of the middle plate.

[0008] Furthermore, a first loading member adapted to the upper plate is rotatably connected to the bottom of the connecting seat, and the first loading member is detachably connected to the rear end of the upper plate.

[0009] Furthermore, the front end of the full-length sole plate is provided with a palm-mid toe split, and the front end of the full-length sole plate forms a thumb plate through the palm-mid toe split.

[0010] Furthermore, the rear end of the full-length sole plate is fixedly connected to an arc-shaped heel, and the rear end of the arc-shaped heel is bent downward.

[0011] Furthermore, a curved arch is provided on the surface of the full-length sole plate.

[0012] Compared with the existing technology, the beneficial effects of the present invention are that the prosthetic foot plate composed of a full-length sole plate, a middle plate and an upper plate transmits the force of the residual limb to the ground, compensates for some functions of the human foot, has high elasticity and the functions of energy storage and energy feedback, and the prosthesis alternates between left and right during walking or exercise. The left and right mirror structures are designed, and the force balance and reasonable distribution of the left and right sole forces are in the universal structure. It has a unique healthy limb side protection function, while ensuring safety and stability during instantaneous impact force and safe support for wearing prostheses, meeting the needs of amputees in different scenarios. During use, the staff can drive the threaded rod to move up and down by twisting the twist handle, and then can adjust the height of the heel, which is convenient for adjusting the equal height of the heel after changing shoes, avoiding the situation where the prosthesis leans forward or backward, thereby improving the comfort of wearing and safety during exercise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a structural diagram of the connecting seat and the four-sided platform connecting head in the utility model;

[0015] Figure 3 It is a structural schematic diagram of the connecting tube and the threaded rod in the utility model.

[0016] In the figure: 1. Full-length sole plate; 2. Curved arch; 3. Mid-foot split; 4. Thumb plate; 5. Curved heel; 6. Middle plate; 7. Protective shell; 8. Upper plate; 9. Connecting seat; 10. Four-sided pyramid connector; 11. Connecting tube; 12. Threaded rod; 13. Twist handle; 14. Connecting block; 15. First loading part; 16. Second loading part. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-3 The utility model provides a technical solution: a multi-axis structure left and right split toe heel height adjustable prosthetic foot, including a full-length sole plate 1, the upper surface of the full-length sole plate 1 is fixedly connected to a middle plate 6, and the upper surface of the middle plate 6 is fixedly connected to an upper plate 8.

[0019] The rear end of the middle plate 6 is rotatably connected to a connecting tube 11 , the internal thread of the connecting tube 11 is connected to a threaded rod 12 , the top of the surface of the threaded rod 12 is fixedly connected to a twist handle 13 , and the top of the threaded rod 12 is rotatably connected to a connecting block 14 .

[0020] The rear end of the upper plate 8 is rotatably connected to the connecting seat 9, the top of the connecting seat 9 is rotatably connected to the quadrangular pyramid connecting head 10, the top of the connecting block 14 is rotatably connected to the top of the rear side of the connecting seat 9, and the rear side of the connecting tube 11 is disassembled and connected to a protective shell 7 covering the connecting tube 11, the threaded rod 12 and the twist handle 13.

[0021] The prosthetic foot consists of a full-length plantar plate 1, a middle plate 6 and an upper plate 8, which transmits the force of the residual limb to the ground, compensates for some functions of the human foot, and has high elasticity and the functions of energy storage and energy feedback. The prosthesis alternates between left and right during walking or exercise, and the left and right mirror-like structural design has a universal structure that does not distinguish between the left and right plantar forces and reasonably distributes the force balance.

[0022] The prosthetic foot is made of carbon fiber and has a unique protection function for the healthy limb side. It also ensures safety and stability during instantaneous impact and safe support when wearing the prosthesis, meeting the needs of amputees in different scenarios.

[0023] The bottom end of the connecting tube 11 is rotatably connected to a second loading member 16 adapted to the middle plate 6 , and the second loading member 16 is detachably connected to the rear end of the middle plate 6 .

[0024] The bottom of the connecting seat 9 is rotatably connected to a first loading member 15 adapted to the upper plate 8 , and the first loading member 15 is detachably connected to the rear end of the upper plate 8 .

[0025] During use, the staff twists the twist handle 13 to drive the threaded rod 12 to move up and down, thereby adjusting the height of the heel. This makes it convenient to adjust the height of the heel after changing shoes, avoiding the situation where the prosthesis leans forward or backward, thereby improving the comfort of wearing and safety during exercise.

[0026] The front end of the full-length sole plate 1 is provided with a palm-mid toe split 3, and the front end of the full-length sole plate 1 forms a thumb plate 4 through the palm-mid toe split 3. The rear end of the full-length sole plate 1 is fixedly connected with an arc-shaped heel 5, and the rear end of the arc-shaped heel 5 is bent downward. The surface of the full-length sole plate 1 is provided with a arc-shaped arch 2.

[0027] The curved heel 5 and the curved arch 2 facilitate improving the elasticity of the prosthetic foot, and the thumb plate 4 improves the stability of the prosthetic foot during walking.

[0028] During operation, the prosthetic foot plate composed of the full-length sole plate 1, the middle plate 6 and the upper plate 8 transmits the force of the residual limb to the ground, compensates for some functions of the human foot, and has high elasticity and the functions of energy storage and energy feedback. The prosthesis is alternately used left and right during walking or exercise. The left and right mirror structures are designed. In the universal structure, the force balance of the left and right soles is reasonably distributed. It has a unique healthy limb side protection function, while ensuring safety and stability during instantaneous impact force and safe support for wearing prostheses, meeting the needs of amputees in different scenarios. During use, the staff twists the twist handle 13 to drive the threaded rod 12 to move up and down, and then can adjust the height of the heel, which is convenient for adjusting the equal height of the heel after changing shoes, avoiding the situation where the prosthesis leans forward or backward, thereby improving the comfort of wearing and safety during exercise.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-axis structure prosthetic foot with left and right split toes and adjustable heel height, comprising a full-length sole plate (1), characterized in that: The upper surface of the full-length sole plate (1) is fixedly connected to a middle plate (6), the upper surface of the middle plate (6) is fixedly connected to an upper plate (8), the rear end of the middle plate (6) is rotatably connected to a connecting tube (11), the internal thread of the connecting tube (11) is connected to a threaded rod (12), the top end of the surface of the threaded rod (12) is fixedly connected to a twist handle (13), and the top end of the threaded rod (12) is rotatably connected to a connecting block (14); The rear end of the upper plate (8) is rotatably connected to a connecting seat (9), the top of the connecting seat (9) is rotatably connected to a quadrangular pyramid connecting head (10), the top of the connecting block (14) is rotatably connected to the top of the rear side of the connecting seat (9), and the rear side of the connecting tube (11) is detachably connected to a protective shell (7) covering the connecting tube (11), the threaded rod (12) and the twist handle (13).

2. The multi-axis structure prosthetic foot with left and right split toes and adjustable heel height according to claim 1, characterized in that: The bottom end of the connecting cylinder (11) is rotatably connected to a second loading member (16) adapted to the middle plate (6), and the second loading member (16) is detachably connected to the rear end of the middle plate (6).

3. The multi-axis structure prosthetic foot with left and right split toes and adjustable heel height according to claim 1, characterized in that: The bottom of the connecting seat (9) is rotatably connected to a first loading member (15) adapted to the upper plate (8), and the first loading member (15) is detachably connected to the rear end of the upper plate (8).

4. The multi-axis structure prosthetic foot with left and right split toes and adjustable heel height according to claim 1, characterized in that: The front end of the full-length sole plate (1) is provided with a palm-mid toe split (3), and the front end of the full-length sole plate (1) forms a thumb plate (4) through the palm-mid toe split (3).

5. The multi-axis structure left and right split-toe heel height adjustable prosthetic foot according to claim 1, characterized in that: The rear end of the full-length sole plate (1) is fixedly connected to an arc-shaped heel (5), and the rear end of the arc-shaped heel (5) is bent downward.

6. The multi-axis structure prosthetic foot with left and right split toes and adjustable heel height according to claim 1, characterized in that: The surface of the full-length sole plate (1) is provided with an arc-shaped arch (2).

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