Artificial limb decoration shell

Abstract

The utility model relates to the technical field of medical instruments, in particular to an artificial limb decoration shell. Comprising an upper cavity and a lower cavity, a receiving cavity connecting device is arranged at the top of the upper cavity and used for being connected with an artificial limb receiving cavity, a first nesting ring is arranged at the bottom of the upper cavity, a second nesting ring is arranged at the top of the lower cavity, and the first nesting ring and the second nesting ring are detachably and fixedly connected. A foot plate shell connecting device is arranged at the bottom of the lower cavity and used for being connected with a foot plate shell, and the upper cavity and the lower cavity are both produced through an additive manufacturing process. The upper cavity is connected with the artificial limb receiving cavity sleeve, the upper cavity is connected with the lower cavity in an embedded mode, and the lower cavity is connected with the artificial limb foot plate shell in an embedded mode or an attached mode. The artificial limb foot plate shell is suitable for foot plate shells of different styles, can be matched with a worn artificial limb to form a whole, and is more attractive after being worn, easier to assemble and more convenient to maintain the artificial limb in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a decorative shell of a prosthesis. Background Art

[0002] Lower limb prostheses are typically skeletal, with metal tubes connecting the prosthetic socket and foot. However, these tubes are shaped very differently from the human leg, leaving the trouser legs noticeably empty when worn, which can easily cause patients to feel uncomfortable.

[0003] Currently, the market generally uses cylindrical sponge or molded foam materials to create an outer shell that mimics the shape of the leg. A metal tube is wrapped inside and then attached to the lower leg prosthesis. However, this outer shell is manually polished and glued together. As a result, the outer shell has a poor fit and lacks aesthetic appeal. The glue-bonding method and the integrated leg shell are inconvenient to disassemble and replace, making subsequent maintenance of the prosthesis more complicated. Furthermore, outer shells made of sponge or foam materials lack flexibility, are not waterproof, and are easily damaged, resulting in a short service life.

[0004] Therefore, the existing technology lacks a calf prosthesis decorative shell with good fit, high aesthetics, strong flexibility, good durability, and easy assembly and maintenance. Utility Model Content

[0005] In response to the above-mentioned shortcomings or improvements in the prior art, the present invention provides a prosthetic decorative housing. Its purpose is to provide a prosthetic housing that is aesthetically pleasing and easy to use, thereby resolving the technical issues of prior art prosthetic decorative housings, which suffer from poor flexibility and inconvenient maintenance. The detailed technical solution of the present utility model is described below.

[0006] The utility model protects a prosthetic decorative shell, including an upper cavity and a lower cavity, the top of the upper cavity is provided with a receiving cavity connecting device for connecting to the prosthetic receiving cavity, the bottom of the upper cavity is provided with a first nesting ring, the top of the lower cavity is provided with a second nesting ring, the first nesting ring and the second nesting ring are detachably fixedly connected, the bottom of the lower cavity is provided with a foot plate shell connecting device for connecting to the foot plate shell, and the upper cavity and the lower cavity are both produced by additive manufacturing process.

[0007] Preferably, the first nested ring is embedded and wrapped around the outside of the second nested ring or the first nested ring is embedded and inserted into the inside of the second nested ring.

[0008] Preferably, the footplate shell connecting device is embedded in the interior of the footplate shell or the footplate shell connecting device is fit-connected to the footplate shell.

[0009] Preferably, the receiving cavity connecting device is connected to the prosthetic receiving cavity by a sleeve connection.

[0010] Preferably, a transition piece is further included, wherein the top of the transition piece is detachably fixedly connected to the first nested ring, and the bottom of the transition piece is detachably fixedly connected to the second nested ring.

[0011] Preferably, the first nested ring or the second nested ring is covered with a polyethylene film or coated with an adhesive.

[0012] Preferably, the upper cavity and the lower cavity are made of thermoplastic polyurethane elastomer or thermoplastic elastomer.

[0013] Preferably, the thickness of the upper cavity and the lower cavity is 1.0 mm to 4.5 mm.

[0014] Preferably, the upper cavity, the lower cavity and the adapter are all made of materials including beige, white and black.

[0015] The beneficial effects of the utility model are:

[0016] (1) The upper cavity of the utility model is connected to the prosthetic receiving cavity sleeve, the upper cavity and the lower cavity are embedded in each other, and the lower cavity is embedded in or fitted with the prosthetic foot shell. It can adapt to different styles of foot shells and can be adapted to the worn prosthesis to form an integrated whole. It is more beautiful after wearing, easier to assemble, and more convenient to maintain the prosthesis in the later stage.

[0017] (2) The utility model adopts soft elastic material, which is more comfortable to the touch and has better bionic effect; it is washable and durable; it can be drilled, pressed and deformed, and polished, and has strong adaptability.

[0018] (3) This invention is manufactured using additive manufacturing technology, which can better meet the patient's needs for diverse designs. According to different parameter models, the required lower leg prosthesis decorative shell can be printed. The outer surface can be designed with patterns and printed in different colors; the density of the interior can be adjusted to form different hollow structures to reduce weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the upper cavity of the utility model;

[0021] Figure 3 It is a schematic diagram of the lower cavity of the utility model;

[0022] Figure 4 This is a schematic diagram of embodiment 3 of the present utility model;

[0023] Figure 5This is a schematic diagram of a fourth embodiment of the present utility model;

[0024] Figure 6 It is a schematic diagram of the adapter of the present utility model.

[0025] In the figure: 1. Upper cavity; 1-1. Receiving cavity connection device; 1-2. First nesting ring; 2. Lower cavity; 2-1. Second nesting ring; 2-2. Foot plate shell connection device; 3. Adapter. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0027] Example 1

[0028] The utility model protects a prosthetic decorative shell, such as Figure 1-Figure 3 As shown, it includes an upper cavity 1 and a lower cavity 2. The top of the upper cavity 1 is provided with a receiving cavity connection device 1-1 for connecting to the prosthetic socket. The bottom of the upper cavity 1 is provided with a first nesting ring 1-2, and the top of the lower cavity 2 is provided with a second nesting ring 2-1. The first nesting ring 1-2 and the second nesting ring 2-1 are detachably fixedly connected. The bottom of the lower cavity 2 is provided with a foot plate shell connection device 2-2 for connecting to the foot plate shell. The upper cavity 1 and the lower cavity 2 are both produced by additive manufacturing technology. The desired prosthetic decorative shell can be printed according to different parameter models. The outer surface can be designed with patterns and printed in different colors to form different hollow structures to reduce weight.

[0029] As a preferred embodiment, the first nested ring 1 - 2 is embedded and wrapped outside the second nested ring 2 - 1 .

[0030] As a preferred embodiment, the foot plate shell connecting device 2-2 is embedded in the interior of the foot plate shell.

[0031] As a preferred embodiment, the connection between the receiving cavity connecting device 1-1 and the prosthetic receiving cavity is a sleeve connection, which has strong adaptability, easy operation, and can be adapted to the prosthesis worn by the patient; after wearing, the position of the receiving cavity connecting device 1-1 is not lower than the plane where the maximum circumference of the prosthetic receiving cavity is located, and the circumference of the receiving cavity connecting device 1-1 is less than or equal to the maximum circumference of the prosthetic receiving cavity, thereby achieving the goal of tightly fitting the upper cavity 1 onto the prosthetic receiving cavity to prevent it from slipping.

[0032] As a preferred embodiment, the first nested ring 1 - 2 or the second nested ring 2 - 1 is covered with a polyethylene film or smeared with an adhesive so as to reduce the noise generated by the friction between the upper cavity 1 and the lower cavity 2 .

[0033] As a preferred embodiment, the material of the upper cavity 1 and the lower cavity 2 is thermoplastic polyurethane elastomer (TPU) or thermoplastic elastomer (TPE), which has good flexibility, more comfortable hand feel, and better bionic effect; it is waterproof, washable, and durable; it can be drilled, pressed and deformed, and can be polished, and has strong adaptability.

[0034] As a preferred embodiment, the thickness of the upper cavity 1 and the lower cavity 2 is 1.0 mm to 4.5 mm, and the weight can be changed by adjusting the thickness.

[0035] As a preferred embodiment, the upper cavity, the lower cavity and the adapter are all made of materials including beige, white and black, which can better meet the patient's needs for diversified designs.

[0036] When in use, the patient wears the prosthetic decorative shell on the periphery of the prosthesis. The prosthetic receiving cavity is connected to the receiving cavity connecting device 1-1 sleeve at the top of the upper cavity 1, which has strong adaptability, is convenient for patients to wear quickly, and can also adapt to the prosthesis worn by the patient. After wearing, the position of the receiving cavity connecting device 1-1 is not lower than the plane where the maximum girth of the prosthetic receiving cavity is located, and the girth of the receiving cavity connecting device 1-1 is less than or equal to the maximum girth of the prosthetic receiving cavity, so that the upper cavity 1 is tightly covered with the prosthetic receiving cavity to prevent it from slipping. The first nesting ring 1-2 at the bottom of the upper cavity 1 is embedded in the outside of the second nesting ring 2-1 at the top of the lower cavity 2, and is tightly wrapped by the reinforcing ribs of the first nesting ring 1-2. The footplate shell connecting device 2-2 at the bottom of the lower cavity 2 is embedded in the interior of the footplate shell, forming a whole with the prosthetic shell, so that there is a smooth transition from the receiving cavity to the footplate, and the appearance is similar to the calf, which is more beautiful after wearing. The first nested ring 1-2 or the second nested ring 2-1 is covered with a polyethylene film or smeared with an adhesive to reduce the noise generated by the friction between the upper cavity 1 and the lower cavity 2. The material of the upper cavity 1 and the lower cavity 2 is thermoplastic polyurethane elastomer (TPU) or thermoplastic elastomer (TPE), which has good flexibility, a more comfortable feel, and a better bionic effect; it is waterproof, washable, and durable; it can be drilled, pressed and deformed, and polished. The thickness of the upper cavity 1 and the lower cavity 2 is 1.0mm to 4.5mm, and the weight is changed by adjusting the thickness. The upper cavity, lower cavity and adapter are all made of materials including beige, white and black to meet the patient's needs for diverse designs.

[0037] Example 2

[0038] The difference between this embodiment and the first embodiment is that the connection method between the first nested ring 1-2 and the second nested ring 2-1 is that the first nested ring 1-2 is embedded in the interior of the second nested ring 2-1 and is tightly wrapped by the reinforcement ribs of the second nested ring 2-1.

[0039] Example 3

[0040] The difference between this embodiment and the first embodiment is that the connection between the foot plate shell connecting device 2-2 and the foot plate shell is a fitting connection between the two, and the foot plate shell connecting device 2-2 and the lower cavity 2 form a flat integrated structure, such as Figure 4 shown.

[0041] Example 4

[0042] The difference between this embodiment and the first embodiment is that it further includes an adapter 3, the top of the adapter 3 is detachably fixedly connected to the first nested ring 1-2, and the bottom of the adapter 3 is detachably fixedly connected to the second nested ring 2-1, thereby increasing the adaptability range and reducing the noise generated by the friction between the upper cavity 1 and the lower cavity 2. Figure 5-Figure 6 shown.

[0043] It is easy for those skilled in the art to understand that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements 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 prosthetic decorative shell, characterized in that: It includes an upper cavity and a lower cavity. The top of the upper cavity is provided with a receiving cavity connecting device for connecting to the prosthetic receiving cavity. The bottom of the upper cavity is provided with a first nesting ring. The top of the lower cavity is provided with a second nesting ring. The first nesting ring and the second nesting ring are detachably fixedly connected. The bottom of the lower cavity is provided with a foot plate shell connecting device for connecting to the foot plate shell. Both the upper cavity and the lower cavity are produced by additive manufacturing process.

2. The prosthetic decorative shell according to claim 1, characterized in that: The first nested ring is wrapped around the outside of the second nested ring or the first nested ring is inserted into the inside of the second nested ring.

3. The prosthetic decorative shell according to claim 2, characterized in that: The foot plate shell connecting device is embedded in the interior of the foot plate shell or the foot plate shell connecting device is closely connected to the foot plate shell.

4. The prosthetic decorative shell according to claim 3, characterized in that: The receiving cavity connecting device is connected to the prosthesis receiving cavity sleeve.

5. The prosthetic decorative shell according to claim 1, characterized in that: It also includes a transition piece, the top of which is detachably fixedly connected to the first nested ring, and the bottom of which is detachably fixedly connected to the second nested ring.

6. The prosthetic decorative shell according to claim 2, characterized in that: The first nested ring or the second nested ring is covered with a polyethylene film or coated with an adhesive.

7. The prosthetic decorative shell according to claim 1, characterized in that: The upper cavity and the lower cavity are made of thermoplastic polyurethane elastomer or thermoplastic elastomer.

8. The prosthetic decorative shell according to claim 1, characterized in that: The thickness of the upper cavity and the lower cavity is 1.0 mm to 4.5 mm.

9. The prosthetic decorative shell according to claim 5, characterized in that: The upper cavity, the lower cavity and the adapter are all made of materials including beige, white and black.

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