Prosthetic socket and prosthetic aid

Abstract

The utility model discloses a kind of prosthetic receiving cavities, prosthetic receiving cavity definition has for accommodating residual limb accommodating space;Prosthetic receiving cavity includes shell and at least one adjusting rope, shell is equipped with at least one opening, adjusting rope is passed at least one opening, adjusting rope is used to adjust the size of accommodating space.The utility model further discloses a kind of prosthetic auxiliary device with prosthetic receiving cavity.The utility model passes through opening in prosthetic receiving cavity additional, by stretching shell freely controls prosthetic receiving cavity entrance size, it is convenient to put on and take off, and such structure is more portable, and better breathability.

Description

Technical Field

[0001] This utility model relates to the field of medical rehabilitation equipment technology, and in particular to a prosthesis receiving cavity and a prosthesis assistive device. Background Technology

[0002] The receiving cavity is the interface connecting the residual limb and the prosthesis. It is the most important component of the prosthesis and directly affects the wearing comfort and performance of the prosthesis. It is the key and difficult point in the entire prosthesis design and manufacturing process.

[0003] Therefore, further improvements are needed. Utility Model Content

[0004] This utility model provides a prosthesis receiving cavity and a prosthesis auxiliary device, which is lightweight, breathable, easy to put on and take off, and relatively low in cost.

[0005] This utility model provides a prosthesis receiving cavity, which defines a accommodating space for accommodating a residual limb. The prosthesis receiving cavity includes an outer shell and at least one adjusting rope. The outer shell has at least one opening. The at least one adjusting rope is wound around the outside of the outer shell and passes around the at least one opening. The adjusting rope is used to adjust the size of the accommodating space.

[0006] In some embodiments, the prosthesis receiving cavity further includes a knob-type cord winder connected to the at least one adjustment cord to adjust the tension of the at least one adjustment cord.

[0007] In some embodiments, a buffer layer is further included, which is attached to the inner circumferential surface of the housing.

[0008] In some embodiments, at least one of the buffer layer or the outer shell is provided with vent holes.

[0009] In some embodiments, the prosthesis receiving cavity further includes a connecting piece disposed at at least one opening in the housing and connected to the housing, the connecting piece being the housing.

[0010] In some embodiments, the adjustment rope is arranged around the outside of the housing from a first end toward an opposite second end.

[0011] In some embodiments, the housing is provided with a positioning portion for accommodating the at least one adjustment rope.

[0012] In some embodiments, there are two openings, and a first adjusting rope is wound around the outer side of the outer casing near the first end, the first adjusting rope passing over the two openings.

[0013] In some embodiments, a second adjusting rope is further included, which is wound around the outer side of the housing near the second end, the second end being disposed opposite to the first end, and the second adjusting rope passing over the two openings.

[0014] In some embodiments, there are two openings, and two adjusting ropes are wound around the outside of the outer shell. Each adjusting rope corresponds to one opening and is wound around a knob rope winder. The size of the accommodating space is adjusted by the corresponding adjusting rope for each opening.

[0015] In some embodiments, the at least one opening extends from a first end of the housing toward a second end, and the at least one opening penetrates the first end of the housing.

[0016] To achieve the above objectives, the present invention also provides a prosthesis assistive device, including the aforementioned prosthesis receiving cavity and support member, wherein the support member is connected to the bottom of the prosthesis receiving cavity.

[0017] In some embodiments, the support member is a retractable structure.

[0018] The beneficial effects of this utility model are as follows:

[0019] The prosthesis receiving cavity of this invention abandons the traditional fully enclosed receiving cavity structure and adds an opening to the outer shell of the receiving cavity. On the one hand, it improves the air permeability, and on the other hand, the size of the prosthesis receiving cavity entrance can be freely controlled by stretching the outer shell, making it convenient to put on and take off. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a prosthesis receiving cavity provided in an embodiment of this application.

[0021] Figure 2 yes Figure 1 The diagram shows a three-dimensional view of the prosthesis receiving cavity from another angle.

[0022] Figure 3 yes Figure 1 A schematic diagram of the side structure of the prosthesis receiving cavity is shown.

[0023] Figure 4 yes Figure 1 The diagram shows an exploded view of the prosthesis receiving cavity.

[0024] Figure 5 yes Figure 1 The diagram shows a three-dimensional structure of the outer shell inside the prosthesis receiving cavity.

[0025] Figure 6 yes Figure 1The diagram shows a three-dimensional structure of the buffer layer in the receiving cavity of the prosthesis.

[0026] Figure 7 This is a three-dimensional structural schematic diagram of a prosthetic assistive device provided in an embodiment of this application.

[0027] Explanation of icon numbers:

[0028] Prosthetic assistive device 1, prosthetic receiving cavity 100, accommodating space 101, support member 200, outer shell 10, opening 11, positioning part 12, first end 13, second end 14, adjustment rope 20, first adjustment rope 20a, second adjustment rope 20b, knob rope winder 30, buffer layer 40, vent hole 41, connecting piece 50, limiting part 51. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Please refer to Figures 1 to 4As shown, this application embodiment provides a prosthesis receiving cavity 100, which defines a receiving space 101 for accommodating a residual limb. The receiving space 101 has a barrel-shaped structure that is wider at the top and narrower at the bottom, and is adapted to the shape of the human residual limb, such as the thigh, calf, or arm.

[0033] The prosthetic receiving cavity 100 includes a housing 10, at least one adjusting cord 20, a knob cord winder 30, and a connecting piece 50. The housing 10 has a first end 13 and a second end 14 disposed opposite to each other. The housing 10 has at least one opening 11 extending from the first end 13 toward the second end 14, and the opening 11 passes through the first end 13. The connecting piece 50 is disposed at at least one opening 11 of the housing 10 and connected to the housing 10. At least one adjusting cord 20 is wound around the outside of the housing 10, and the adjusting cord 20 passes around at least one opening 11 and is connected to the knob cord winder 30. The tension of the at least one adjusting cord 20 is adjusted by the knob cord winder 30 to adjust the size of the receiving space 101.

[0034] Combination Figure 5 and Figure 6 As shown, the prosthesis receiving cavity 100 also includes a buffer layer 40 and a skin-friendly fabric layer (not shown). The shape of the buffer layer 40 is adapted to the outer shell 10 and fits against the inner peripheral surface of the outer shell 10; the skin-friendly fabric layer fits against the inner peripheral surface of the buffer layer 40. At least one of the outer shell 10 and the buffer layer 40 is provided with a plurality of evenly distributed ventilation holes.

[0035] The outer shell 10 and the buffer layer 40 are preferably printed using 3D printing technology. The outer shell 10 is preferably a rigid shell printed from PA12 (polyamide 12) material. PA12 has good toughness, toughness, chemical resistance, a smooth surface, and good dimensional stability. The outer shell 10 has locally distributed ventilation holes (not shown in the figure) with a diameter of 2 mm and a spacing of approximately 3 mm, for aesthetic and ventilation purposes.

[0036] The cushioning layer 40 is preferably made of polyurethane with a thickness of 2 mm. Polyurethane has excellent elasticity, abrasion resistance and heat insulation, and can provide good shock absorption, effectively cushioning the contact and pressure of the limbs and reducing the impact force during walking. In addition, the evenly distributed ventilation holes 41 on the cushioning layer 40 can also ensure breathability.

[0037] For comfort, the cushioning layer 40 will be covered with a skin-friendly fabric layer. This skin-friendly fabric layer is preferably a knitted fabric, which not only improves the wearing experience but also secures the connection between the outer shell 10 and the cushioning layer 40.

[0038] The connecting piece 50 is made of a flexible material, preferably a breathable and elastic fabric, such as Lycra. Lycra fabric is breathable, elastic, and less irritating to the skin. This fabric also reinforces the outer shell 10, effectively connecting it to the rigid outer shell 10 and ensuring its integrity and support. Without the connecting piece 50, the outer shell 10 would easily collapse after prolonged wear. When wearing the garment, the user can freely control the size of the opening for the affected limb by stretching the outer shell 10, facilitating easy donning and doffing.

[0039] The prosthesis receiving cavity 100 adopts a composite layer structure with a hard outer layer and a soft inner layer. An opening 11 is opened in the outer shell 10 for easy wearing. A connecting piece 50 is set at the opening 11 to ensure both skin-friendliness and breathability.

[0040] The adjusting rope 20 is arranged around the outside of the outer casing 10 from the first end 13 toward the opposite second end 14, preferably inclined around the circumference of the outer casing 10. The knob rope winder 30 is preferably a BOA adjusting knob, and the material of the BOA adjusting knob is considered to be PA12. The knob rope winder 30 is fixedly connected to the outside of the outer casing 10. The design of the adjusting rope 20 makes the force-bearing area larger and the force more even, avoiding a state where only the top is tightened while the middle part is still loose.

[0041] The adjusting rope 20 is a flat, ring-shaped strip wound around the outside of the housing 10 and passes over the opening 11. One side of the bent adjusting rope 20 is fixed to the outside of the housing 10 by a knob rope winder 30, and the other side of the bent adjusting rope 20 can be fixed to the outside of the housing 10 by a rope winding shaft seat (not shown).

[0042] To better define the position of the adjustment rope 20, the outer casing 10 is provided with a positioning part 12 for accommodating the adjustment rope 20. The positioning part 12 is shaped to correspond to the adjustment rope 20 and is a flat annular strip. The positioning part 12 can be a positioning groove or a pipe passing through the inside of the outer casing 10 for the adjustment rope 20 to pass through. The knob rope winder 30 is located near the positioning part 12.

[0043] The adjusting rope 20 can be directly wound around the outer surface of the connecting piece 50, or a limiting part 51 for accommodating the adjusting rope 20 can be provided on the outer surface of the connecting piece 50. Preferably, the limiting part 51 has a rope channel penetrating inside the connecting piece 50 to facilitate the positioning of the adjusting rope 20.

[0044] In this embodiment, the outer shell 10 preferably has two symmetrical openings 11, which makes it convenient for the user to quickly and easily insert the affected limb into the receiving space 101 of the prosthesis receiving cavity 100 when wearing it.

[0045] Two adjusting ropes 20, namely a first adjusting rope 20a and a second adjusting rope 20b, are wound around the outer side of the outer casing 10. Each adjusting rope 20 passes through two openings 11. The first adjusting rope 20a is wound around the outer side of the outer casing 10 near the first end 13, and the second adjusting rope 20b is wound around the outer side of the outer casing 10 near the second end 14. Preferably, one knob rope winder 30 is located at the upper left end of the outer casing 10, and the other knob rope winder 30 is located at the lower right end of the outer casing 10. When the knob rope winder 30 is adjusted, the adjusting ropes 20 gradually tighten, the openings 11 on both sides of the outer casing 10 gradually narrow, and the accommodating space 101 also shrinks accordingly, and its diameter and volume change accordingly. The pressure on the two adjusting ropes 20 is less than that on a single adjusting rope 20, and the size and circumference of the upper and lower parts of the accommodating space 101 can be adjusted separately, which can better ensure the stability and fit of the outer casing 10.

[0046] In addition, the first adjusting rope 20a and the second adjusting rope 20b can also be arranged symmetrically, with each adjusting rope 20 corresponding to an opening 11. Each opening 11 is controlled by the corresponding adjusting rope 20 and the knob rope winder 30 to adjust the size of the accommodating space 101.

[0047] Of course, the outer side of the outer shell 10 of the receiving cavity 10 may also be wrapped with only the first adjusting rope 20a, which is spiral and passes around both openings 11.

[0048] Please refer to Figure 7 As shown, a prosthetic assistive device 1 includes a prosthetic receiving cavity 100 and a support member 200. The support member 200 is connected to the bottom of the prosthetic receiving cavity 100. The support member 200 is only fixedly connected to the outer shell 10 and does not penetrate into the buffer layer 40. This allows for connection with the outer shell 10 while avoiding direct contact with the affected limb to prevent discomfort. The support member 200 is a rigid, extendable structure that allows for length adjustment for easy storage while providing good support.

[0049] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A prosthesis receiving cavity, characterized in that, The prosthesis receiving cavity defines a receiving space for accommodating the residual limb, and the prosthesis receiving cavity includes: The housing has at least one opening; At least one adjusting rope is provided, which is wound around the outside of the housing and passes around the at least one opening. The at least one adjusting rope is used to adjust the size of the accommodating space.

2. The prosthesis receiving cavity according to claim 1, characterized in that: The prosthesis receiving cavity also includes a knob-type cord winder, which is connected to the at least one adjusting cord to adjust the tension of the at least one adjusting cord.

3. A prosthesis receiving cavity according to any one of claims 1 or 2, characterized in that: It also includes a buffer layer that is attached to the inner circumferential surface of the outer shell.

4. The prosthesis receiving cavity according to claim 3, characterized in that: At least one of the buffer layer or the outer shell is provided with ventilation holes.

5. The prosthesis receiving cavity according to claim 1, characterized in that: The prosthesis receiving cavity also includes a connecting piece, which is disposed at at least one opening in the outer shell and connected to the outer shell. The connecting piece is made of a flexible material.

6. The prosthesis receiving cavity according to claim 1, characterized in that: The adjustment rope is arranged around the outside of the outer shell from the first end of the outer shell toward the opposite second end.

7. A prosthesis receiving cavity according to claim 2, characterized in that: The outer casing is provided with a positioning part for accommodating the at least one adjusting rope.

8. A prosthesis receiving cavity according to claim 1, characterized in that: The number of openings is two, and a first adjusting rope is wound around the outer side of the outer shell near the first end, the first adjusting rope passing around the two openings.

9. A prosthesis receiving cavity according to claim 8, characterized in that: It also includes a second adjusting rope, which is wound around the outer side of the outer casing near the second end, with the second end opposite to the first end, and the second adjusting rope passing around the two openings.

10. A prosthesis receiving cavity according to claim 1, characterized in that: There are two openings. Two adjusting ropes are wound around the outside of the outer shell. Each adjusting rope corresponds to one opening. Each adjusting rope is wound with a knob rope winder. The size of the accommodating space is adjusted by the corresponding adjusting rope for each opening.

11. A prosthesis receiving cavity according to claim 1, characterized in that: The at least one opening extends from the first end of the housing toward the second end, and the at least one opening penetrates the first end of the housing.

12. A prosthetic assistive device, characterized in that: The device includes the prosthesis receiving cavity and support member as described in any one of claims 1 to 11, wherein the support member is connected to the bottom of the prosthesis receiving cavity.

13. The prosthetic assistive device according to claim 12, characterized in that, The support component is a retractable structure.

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