一种戈型小腿假肢装置
By designing a goblet-shaped lower leg prosthesis, using a T-shaped structure and carbon fiber material, combined with boot-style foot skin, the problems of traditional prostheses being heavy and uncomfortable are solved, achieving lightweight and easy manufacturing, and improving the user's quality of life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 孙宁
- Filing Date
- 2025-04-27
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional lower limb prostheses are heavy, lack flexibility and comfort, have a complicated manufacturing process, complex connection structure, and are inconvenient to install and adjust. They cannot balance material strength with weight, cost with personalized needs.
A goblet-shaped lower leg prosthesis device was designed, which uses a T-shaped foot plate and connecting rod, made of carbon fiber plate material, combined with boot-style foot leather, and manufactured through a one-piece molding process. The parameters are calculated based on human anatomy and geometry to reduce the number of parts, and uses lightweight materials and intelligent connection system.
It achieves lightweight, improved comfort and functionality of prostheses, simplifies manufacturing, reduces the risk of failure, saves physical energy, and adapts to the needs of different users.
Smart Images
Figure CN224505665U_ABST
Abstract
Claims
1. A below-knee prosthesis device of the G-type, characterized in that, include: The footplate and connecting rod forming a "T" shaped structure; and the boot-style foot cover covering the outside of the footplate and connecting rod; The foot length is determined by multiplying the user's baseline foot length by 0.8; The connecting rod is set perpendicular to the footboard, and the point where its extension line intersects the footboard is the point where a circle with the footboard near the toe as the center and the footboard length multiplied by 0.618 as the radius intersects the footboard. The upper part of the connecting rod is rod-shaped, and the shape of the lower part is determined as follows: A circle is drawn with the point at which the length of the footplate multiplied by 0.382 extends vertically upwards from the end of the footplate near the heel as the center, and the radius is the length of the footplate multiplied by 0.382; another circle is drawn with the point at which the length of the footplate multiplied by 0.618 extends vertically upwards from the end of the footplate near the toe as the center, and the radius is the length of the footplate multiplied by 0.618; both circles are tangent to the center line of the connecting rod; the two arcs between the intersections of the two circles with the connecting rod and the footplate constitute the lower outer edge shape of the connecting rod. The connecting rod and the foot plate are integrally formed to create a fixed halberd-shaped structure.
2. The Gotti below-knee prosthesis device according to claim 1, characterized in that, The width of the goblet-shaped structure is 30 millimeters.
3. The Gotti below-knee prosthetic device of claim 1, wherein, The thickness of the footplate and the upper part of the connecting rod is determined according to the user's weight, specifically: 1 mm for every 10 kg of body weight.
4. The Gotti below-knee prosthetic device of claim 1, wherein, The goblet-shaped structure is made of carbon fiber plate, with its edges and corners rounded off.
5. The Gotti below-knee prosthetic device of claim 1, wherein, The lower outer edge of the connecting rod has an arc of 1.5708 radians.
6. The Gotti below-knee prosthetic device of claim 1, wherein, The length of the connecting rod is set according to the user's actual needs.
7. The Gotti below-knee prosthetic device of claim 1, wherein, The upper end of the connecting rod is connected to the receiving cavity connector; the interface between the connecting rod and the receiving cavity connector is adapted.
8. The Gotti below-knee prosthetic device of claim 1, wherein, A buckle is provided on the outer side of the footplate near the heel, which is connected and fixed to the boot-shaped foot leather and the goat-shaped structure by a buckle at the corresponding position.
9. The Gotti below-knee prosthetic device of claim 1, wherein, The boot-shaped foot skin is evenly covered on the outside of the gob-shaped structure; the foot plate is in close contact with the corresponding boot-shaped foot skin part at the bottom of the connecting rod, and the corresponding boot-shaped foot skin part at the top of the connecting rod is a 1 mm thick cavity covering the prosthesis receiving cavity.
10. The Gotti below-knee prosthetic device of claim 1, wherein, The boot-style foot cover is made of expanded thermoplastic polyurethane (ETPU).