Receiving cavity damping and buffering type artificial limb
By introducing a multi-layered cushioning structure and a silicone air cushion into the prosthesis socket, the problem of poor shock absorption in existing prosthesis sockets has been solved, achieving better shock absorption and comfort.
Patent Information
- Application Number
- CN202422998662.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The existing prosthetic sockets have limited shock absorption, causing swelling and pain at the amputation site when walking, which affects the user experience.
It adopts a multi-layer buffer structure, including a first buffer chamber, a second buffer chamber, a buffer spring, and a silicone air cushion. Multi-level buffering is achieved through sliding friction and elastic compression. The combination of rigid and flexible layers enhances the shock absorption effect.
It effectively reduces vibration and impact on the amputation site, improves user comfort, and protects the health of the amputation site.
Smart Images
Figure CN223731571U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to artificial limb technical field, concretely to a receiving cavity shock absorption buffer type artificial limb. BACKGROUND
[0002] Artificial limb is a kind of artificial body specially designed and made by engineering technology and method to make up for the limb of amputee or limb incomplete defect, also called "prosthetic limb", its main function is to replace the part function of lost limb, and make amputee restore certain self-care and work ability, and its applicable object is amputee due to disease, traffic accident, work injury, sports trauma and the like;
[0003] Artificial limb is composed of receiving cavity, connecting pipe and foot plate, wherein the receiving cavity is used to sleeve joint limb amputation end, due to the weak impact resistance of limb amputation end, limb amputation end is frequently extruded receiving cavity when walking, which can cause limb amputation end swelling and pain, thereby affecting the wearing of user, however, the common artificial limb receiving cavity on the market only sets a layer of silica gel cushion on inner wall, which leads to limited overall shock absorption effect, therefore, we provide a shock absorption artificial limb receiving cavity. SUMMARY
[0004] (I) technical problem solved
[0005] In view of the deficiency of prior art, the utility model provides a receiving cavity shock absorption buffer type artificial limb to solve the above technical problem.
[0006] (II) technical scheme
[0007] In order to achieve the above object, the utility model provides the following technical scheme: a receiving cavity shock absorption buffer type artificial limb, including mounting shaft and ankle connecting mechanism, first buffer cavity and second buffer cavity are opened in the mounting shaft, the ankle connecting mechanism is slidably installed in the first buffer cavity, the top of ankle connecting mechanism is connected with the connecting shaft extending into the second buffer cavity, the first baffle is protruded on the ankle connecting mechanism, the second baffle is protruded on the connecting shaft, the first buffer cavity is communicated with the second buffer cavity through slide hole, the top of mounting shaft is opened with cavity, the connecting column is slidably arranged in the cavity, the connecting column is connected with receiving cavity mechanism at the top, the first buffer spring is arranged in the cavity, and the end, away from the cavity, of first buffer spring is abutted on connecting column, second spring is arranged in the first buffer cavity and the second buffer cavity, and the bottom of two second springs is respectively abutted on first baffle and second baffle.
[0008] Preferably, a plurality of vertical limit grooves are arranged on the inner wall of the cavity along the circumferential direction, and a vertical limit block is slidably arranged in the vertical limit groove, and the vertical limit block is installed on the connecting column.
[0009] Preferably, the receiving cavity mechanism is provided with an inner cavity, and a silica gel air cushion ring is arranged on the inner wall of the inner cavity.
[0010] Preferably, the receiving cavity mechanism is composed of a rigid layer and a flexible layer, and a hollow interlayer is arranged between the rigid layer and the flexible layer.
[0011] Preferably, a plurality of rubber tubes are arranged in the hollow interlayer in an axial direction.
[0012] Preferably, the rubber tubes are filled with elastic filling materials.
[0013] Preferably, the diameter of the connecting shaft is the same as the diameter of the sliding hole, and the connecting shaft is arranged in the sliding hole in a sliding mode.
[0014] Compared with the prior art, the receiving cavity shock-absorbing and buffering type artificial limb has the following beneficial effects:
[0015] The first buffering spring and the two second buffering springs are arranged, the first baffle, the connecting shaft and the second baffle drive the two second buffering springs to be extruded when the amputation end is forced, the friction force of the first baffle and the second baffle when sliding in the first buffering cavity and the second buffering cavity can well buffer the elastic force caused by the spring, so that the purpose of shock-absorbing and buffering is achieved, and the connecting column extrudes the first buffering spring in the cavity, and further buffers the impact force. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a schematic view of the main structure of the utility model;
[0017] Figure 2 It is a schematic view of the side sectional structure of the connecting column, the connecting shaft and the ankle connecting mechanism and the like structure of the utility model;
[0018] Figure 3 It is a schematic view of the bottom sectional structure of the vertical limiting block and the connecting shaft and the like structure of the utility model;
[0019] Figure 4 It is a schematic view of the local sectional structure of the receiving cavity mechanism of the utility model.
[0020] 1, mounting shaft; 2, ankle connecting mechanism connecting shaft; 3, receiving cavity mechanism; 4, inner cavity; 5, silica gel air cushion ring; 6, connecting column; 7, vertical limiting block; 8, vertical limiting groove; 9, first buffering spring; 10, cavity; 11, first buffering cavity; 12, first baffle; 13, sliding hole; 14, connecting shaft; 15, second buffering cavity; 16, second baffle; 17, second buffering spring; 18, rigid layer; 19, flexible layer; 20, hollow interlayer; 21, rubber tube; 22, elastic filling material. DETAILED DESCRIPTION
[0021] The embodiments of the present application will be further described in details below with reference to the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.
[0022] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0023] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0024] Please refer to Figures 1-4 A receiving cavity shock-absorbing and buffering type artificial limb, comprising a mounting shaft 1 and an ankle connecting mechanism 2, a first buffering cavity 11 and a second buffering cavity 15 are formed in the mounting shaft 1, the ankle connecting mechanism 2 is slidably installed in the first buffering cavity 11, a connecting shaft 14 extending into the second buffering cavity 15 is connected to the top of the ankle connecting mechanism 2, a first baffle 12 is protruded on the ankle connecting mechanism, a second baffle 16 is protruded on the connecting shaft 14, the first buffering cavity 11 and the second buffering cavity 15 are communicated through a sliding hole 13, a cavity 10 is formed in the top of the mounting shaft 1, a connecting column 6 is slidably arranged in the cavity 10, a receiving cavity mechanism 3 is connected to the top of the connecting column 6, a first buffering spring 9 is arranged in the cavity 10, one end of the first buffering spring 9 away from the cavity 10 abuts against the connecting column 6, second springs are arranged in the first buffering cavity 11 and the second buffering cavity 15, and the bottom ends of the two second springs abut against the first baffle 12 and the second baffle 16 respectively.
[0025] Through the first buffer spring 9 and the two second buffer springs 17, when the amputated end is forced, the first baffle 12, the connecting shaft 14 and the second baffle 16 can drive the two second buffer springs 17 to be extruded through the ankle connecting mechanism 2, and the friction force when the first baffle 12 and the second baffle 16 slide in the first buffer cavity 11 and the second buffer cavity 15 can well buffer the elastic force caused by the spring, so as to achieve the purpose of shock absorption and buffering, and at the same time, the connecting column 6 extrudes the first buffer spring 9 in the cavity 10, thereby further buffering the impact force.
[0026] Specifically, in the embodiment, a plurality of vertical limiting grooves 8 are arranged on the inner wall of the cavity 10 in the circumferential direction, and a vertical limiting block 7 is slidably arranged in the vertical limiting groove 8, and the vertical limiting block 7 is installed on the connecting column 6.
[0027] Through the cooperation between the vertical limiting groove 8 and the vertical limiting block 7, the moving direction of the connecting column 6 and the receiving cavity mechanism 3 can be guided, and the moving range thereof can be limited.
[0028] Specifically, in the embodiment, an inner cavity 4 is arranged in the receiving cavity mechanism 3, and a silica gel air cushion ring 5 is arranged on the inner wall of the inner cavity 4, so that the amputated end of the user can be well protected, and the impact force can be well buffered, so that the amputated end in the receiving cavity is well protected.
[0029] Specifically, in the embodiment, the receiving cavity mechanism 3 is composed of a rigid layer 18 and a flexible layer 19, and a hollow interlayer 20 is arranged between the rigid layer 18 and the flexible layer 19.
[0030] Specifically, in the embodiment, a plurality of rubber tubes 21 are arranged in the hollow interlayer 20 in the axial direction, and the rubber tubes 21 are filled with elastic filling materials 22, so that the impact force can be further buffered by extruding the rubber tubes 21 and the elastic filling materials 22 through the flexible layer 19, and the amputated end in the receiving cavity is well protected.
[0031] Specifically, in the embodiment, the ankle connecting mechanism 2 and the first baffle 12 are connected through a damper.
[0032] Specifically, in the embodiment, the diameter of the connecting shaft 14 is the same as that of the sliding hole 13, and the connecting shaft 14 is slidably arranged in the sliding hole 13.
[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A socket shock absorbing cushion type prosthesis comprising a mounting shaft and an ankle coupling mechanism, characterized in that: The mounting shaft is internally provided with a first buffer cavity and a second buffer cavity, a foot-ankle connecting mechanism is slidingly mounted in the first buffer cavity, a connecting shaft extending into the second buffer cavity is connected to the top of the foot-ankle connecting mechanism, a first baffle is protruded on the foot-ankle connecting mechanism, a second baffle is protruded on the connecting shaft, the first buffer cavity and the second buffer cavity are communicated through a sliding hole, a cavity is formed in the top of the mounting shaft, a connecting column is slidingly arranged in the cavity, an accepting cavity mechanism is connected to the top of the connecting column, a first buffer spring is arranged in the cavity, the end of the first buffer spring away from the cavity is abutted against the connecting column, a second spring is arranged in the first buffer cavity and the second buffer cavity, and the bottom ends of the two second springs are respectively abutted against the first baffle and the second baffle.
2. A socket shock absorbing cushioned prosthesis according to claim 1 wherein: A plurality of vertical limiting grooves are arranged on the inner wall of the cavity in a circumferential direction, and a vertical limiting block is slidingly arranged in the vertical limiting groove, and the vertical limiting block is mounted on the connecting column.
3. The socket shock absorbing and cushioning type prosthesis according to claim 1, characterized in that: An inner cavity is formed in the accepting cavity mechanism, and a silica gel air cushion ring is arranged on the inner wall of the inner cavity.
4. The socket shock absorbing and cushioning type prosthesis according to claim 1, characterized in that: The accepting cavity mechanism is composed of a rigid layer and a flexible layer, and a hollow interlayer is arranged between the rigid layer and the flexible layer.
5. A socket shock absorbing cushioned prosthesis according to claim 4, wherein: A plurality of rubber tubes are arranged in the hollow interlayer in an axial direction, and the rubber tubes are filled with elastic filling materials.
6. The socket shock absorbing and cushioning type prosthesis according to claim 1, characterized in that: The foot-ankle connecting mechanism and the first baffle are connected through a damper.
7. The socket shock absorbing and cushioning type prosthesis according to claim 1, characterized in that: The diameter of the connecting shaft is the same as the diameter of the sliding hole, and the connecting shaft is slidingly arranged in the sliding hole.