Adjustable prosthetic socket

Abstract

The utility model relates to the technical field of artificial limbs, in particular to an adjustable artificial limb receiving cavity, which comprises an outer sheath and a receiving inner cavity, and is characterized in that the bottom end of the outer sheath is connected onto an installation arc-shaped plate, the installation arc-shaped plate is arranged on an adjusting platform, a connecting ring is fixedly arranged at the lower end of the adjusting platform, and the connecting ring is connected with the outer sheath. The connecting ring is connected to the receiving inner cavity, and the adjusting platform is provided with an adjusting mechanism used for adjusting the tightness of the outer sheath. According to the utility model, the size of the outer sheath can be adjusted, so that the situation of inconvenience in wearing of a wearer can be effectively avoided, the wearing is more convenient, in addition, the size of the outer sheath can be adjusted in time when the size of the stump of the wearer is changed under different conditions, and then the stump can adapt to the stump in time; the wearing experience of the user is improved, and meanwhile, the damage to the user caused by the receiving cavity is greatly avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of prostheses, and belongs to an adjustable prosthesis receiving cavity. Background Art

[0002] The prosthetic socket is a part that can comfortably accommodate the residual limb and effectively transmit the relevant force to the distal part of the prosthesis. It is the interface component of the human body mechanical system. For the wearer, the adaptability of the prosthetic socket directly affects the wearing comfort.

[0003] However, the volume of the wearer's residual limb is not fixed, but will change due to some factors. For example, after activity, the volume of the residual limb will increase to a certain extent, and will decrease to a certain extent when the wearer is calm.

[0004] Due to various reasons, the traditional prosthetic sockets on the market cannot be adjusted in time to adapt to the changes in the user's residual limbs, which makes it easy for the sockets to be too large or too small, which can easily cause abrasion or squeezing of the residual limbs, affecting the user experience and being detrimental to the user's health. Utility Model Content

[0005] The utility model provides an adjustable prosthetic receiving cavity, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above object, the utility model provides the following implementation scheme:

[0007] The present application provides an adjustable prosthetic receiving cavity, comprising an outer sheath and a receiving inner cavity, and is characterized in that the bottom end of the outer sheath is connected to a mounting arc plate, the mounting arc plate is arranged on an adjustment platform, a connecting ring is fixedly arranged at the lower end of the adjustment platform, the connecting ring is connected to the receiving inner cavity, and an adjustment mechanism for adjusting the tightness of the outer sheath is arranged on the adjustment platform.

[0008] Preferably, the outer sheath comprises a plurality of long arc-shaped spring pieces and a short arc-shaped spring piece, a fixing groove is provided on the top surface of the mounting arc-shaped plate, the long arc-shaped spring pieces and a short arc-shaped spring piece are both fixedly connected in the fixing groove, and a strap assembly is provided on two adjacent long arc-shaped spring pieces of the short arc-shaped spring piece.

[0009] Preferably, the strap assembly includes a fixing block 1, a fixing block 2 and a strap, the fixing block 1 and the fixing block 2 are both fixedly arranged on a long arc-shaped spring piece, the fixing block 1 and the fixing block 2 are respectively provided with a connecting shaft 1 and a connecting shaft 2, the connecting shaft 1 is connected to a male buckle, one end of the strap is connected to the connecting shaft 2, and the other end of the strap is connected to a female buckle.

[0010] Preferably, the adjustment mechanism includes a slide rail fixedly arranged on the adjustment platform, a sliding groove opened at the bottom of the mounting arc plate and an electric telescopic rod. The sliding groove and the slide rail are slidably connected, and limiting columns are arranged at both ends of the slide rail. An L-plate is fixedly connected to the outer side of the adjustment platform, and the base of the electric telescopic rod is fixedly connected to the L-plate. A connecting groove is arranged on the outer wall of the mounting arc plate, and the output end of the electric telescopic rod is fixedly connected to the connecting groove.

[0011] Preferably, the connecting ring is provided with an external thread, the receiving inner cavity is provided with an internal thread, and the external thread is adapted to the internal thread.

[0012] Preferably, a connecting hole is provided at the bottom of the receiving inner cavity.

[0013] Compared with the prior art, the utility model provides an adjustable prosthetic receiving cavity, which has the following beneficial effects:

[0014] The utility model is provided with an adjustment mechanism, which can realize the size adjustment of the outer sheath, thereby effectively avoiding the occurrence of inconvenience in wearing by the wearer and making wearing more convenient. In addition, when the volume of the residual limb of the wearer changes in different situations, the size of the outer sheath can be adjusted in time, and then it can be adapted in time, which improves the wearing experience of the user and greatly avoids the damage to the user caused by the receiving cavity.

[0015] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the outer sheath of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the adjustment mechanism of the utility model;

[0019] Figure 4 It is a cross-sectional view of the utility model;

[0020] In the figure: 1. outer sheath; 11. long arc-shaped spring piece; 12. short arc-shaped spring piece; 2. receiving inner cavity; 21. internal thread; 22. connecting hole; 3. mounting arc plate; 31. fixing groove; 4. adjusting platform; 41. connecting ring; 411. external thread; 5. adjusting mechanism; 51. slide rail; 511. limit column; 52. sliding groove; 53. electric telescopic rod; 54. L-plate; 55. connecting groove; 6. strap assembly; 61. fixing block 1; 62. fixing block 2; 63. connecting shaft 1; 64. connecting shaft 2; 65. male buckle; 66. strap; 67. female buckle. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0022] See also Figure 1 , an adjustable prosthetic receiving cavity, comprising an outer sheath 1 and a receiving inner cavity 2, characterized in that the bottom end of the outer sheath 1 is connected to a mounting arc plate 3, the mounting arc plate 3 is arranged on an adjustment platform 4, a connecting ring 41 is fixedly provided at the lower end of the adjustment platform 4, the connecting ring 41 is connected to the receiving inner cavity 2, and an adjustment mechanism 5 for adjusting the tightness of the outer sheath 1 is arranged on the adjustment platform 4.

[0023] See also Figure 2 The outer sheath 1 includes a plurality of long arc-shaped spring pieces 11 and a short arc-shaped spring piece 12. A fixing groove 31 is provided on the top surface of the mounting arc-shaped plate 3. The long arc-shaped spring pieces 11 and a short arc-shaped spring piece 12 are both fixedly connected in the fixing groove 31. A strap assembly 6 is provided on two adjacent long arc-shaped spring pieces 11 of the short arc-shaped spring piece 12. The long arc-shaped spring pieces 11 are used to wrap and accommodate the residual limbs, and the short arc-shaped spring pieces 12 can be more convenient to wear. The strap assembly 6 can be used to fix the residual limbs.

[0024] See also Figure 2 The strap assembly 6 includes a fixing block 1 61, a fixing block 2 62 and a strap 66. The fixing block 1 61 and the fixing block 2 62 are both fixedly arranged on the long arc-shaped spring piece 11. The fixing block 1 61 and the fixing block 2 62 are respectively provided with a connecting shaft 1 63 and a connecting shaft 2 64. The connecting shaft 1 63 is connected with a male buckle 65. One end of the strap 66 is connected to the connecting shaft 2 64, and the other end of the strap 66 is connected with a female buckle 67. The female buckle 67 and the male buckle 65 can be fixed in coordination with each other, and the device is fixed to the residual limb in coordination with the strap 66.

[0025] See also Figure 3 The adjusting mechanism 5 comprises a slide rail 51 fixedly arranged on the adjusting platform 4, a slide groove 52 provided at the bottom of the mounting arc plate 3 and an electric telescopic rod 53. The slide groove 52 is slidably connected to the slide rail 51. Limiting columns 511 are provided at both ends of the slide rail 51. Obviously, the limiting columns 511 are used to provide a limiting effect to prevent the slide groove 52 from slipping off from both ends of the slide rail 51. An L plate 54 is fixedly connected to the outside of the adjusting platform 4. The base of the electric telescopic rod 53 is fixedly connected to the L plate 54. A connecting groove 55 is provided on the outer wall of the mounting arc plate 3. The output end of the electric telescopic rod 53 is fixedly connected to the connecting groove 55. The electric telescopic rod 53 is used to provide the power required for adjusting the mounting arc plate 3, so that the mounting arc plate 3 moves along the slide rail 51, thereby adjusting the spacing between the outer sheaths 1.

[0026] See also Figure 4 The connecting ring 41 is provided with an external thread 411, and the receiving inner cavity 2 is provided with an internal thread 21. The external thread 411 is threadably matched with the internal thread 21. The thread matching facilitates the assembly and disassembly of the part above the adjustment platform 4 and the receiving inner cavity 2, and is convenient for cleaning, maintenance and the like.

[0027] See also Figure 4 A connecting hole 22 is provided at the bottom of the receiving inner cavity 2, and the connecting hole 22 serves as a reserved opening for connecting a prosthetic support.

[0028] The working principle of the embodiment of the utility model:

[0029] When the utility model is used, when the wearer's residual limb feels that the prosthetic receiving cavity is uncomfortable due to being too tight or too loose, the electric telescopic rod 53 is started, and the electric telescopic rod 53 provides adjustment power. The output end of the electric telescopic rod 53 drives the installation arc plate 3 to move accordingly along the slide rail 51. When it is too tight, the installation arc plate 3 moves outward along the length direction of the slide rail 51, thereby driving the outer sheath 1 to move outward and enlarging the internal space of the receiving cavity; when it is too loose, the installation arc plate 3 moves inward along the length direction of the slide rail 51, thereby driving the outer sheath 1 to move inward and reducing the internal space of the receiving cavity, so that the outer sheath 1 is close to the residual limb and ensures stability in wearing.

[0030] The above description is only a preferred embodiment of the present invention, and the printed data cable is not intended to limit the present invention. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable prosthetic receiving cavity, comprising an outer sheath (1) and a receiving inner cavity (2), characterized in that: The bottom end of the outer sheath (1) is connected to a mounting arc plate (3), the mounting arc plate (3) is arranged on an adjustment platform (4), a connecting ring (41) is fixedly arranged at the lower end of the adjustment platform (4), the connecting ring (41) is connected to the receiving inner cavity (2), and an adjustment mechanism (5) for adjusting the tightness of the outer sheath (1) is arranged on the adjustment platform (4).

2. An adjustable prosthetic socket as claimed in claim 1, characterized in that: The outer sheath (1) comprises a plurality of long arc-shaped spring pieces (11) and a short arc-shaped spring piece (12); a fixing groove (31) is provided on the top surface of the mounting arc-shaped plate (3); the long arc-shaped spring pieces (11) and the short arc-shaped spring piece (12) are both fixedly connected in the fixing groove (31); and a strap assembly (6) is provided on two of the long arc-shaped spring pieces (11) adjacent to the short arc-shaped spring piece (12).

3. An adjustable prosthetic socket as claimed in claim 2, characterized in that: The strap assembly (6) comprises a fixing block 1 (61), a fixing block 2 (62) and a strap (66); the fixing block 1 (61) and the fixing block 2 (62) are both fixedly arranged on the long arc-shaped spring sheet (11); the fixing block 1 (61) and the fixing block 2 (62) are respectively provided with a connecting shaft 1 (63) and a connecting shaft 2 (64); the connecting shaft 1 (63) is connected with a male buckle (65); one end of the strap (66) is connected to the connecting shaft 2 (64); and the other end of the strap (66) is connected with a female buckle (67).

4. The adjustable prosthetic socket according to claim 1, characterized in that: The adjustment mechanism (5) comprises a slide rail (51) fixedly arranged on the adjustment platform (4), a slide groove (52) provided at the bottom of the installation arc plate (3), and an electric telescopic rod (53); the slide groove (52) and the slide rail (51) are connected by sliding; both ends of the slide rail (51) are provided with limit posts (511); an L plate (54) is fixedly connected to the outside of the adjustment platform (4); a base of the electric telescopic rod (53) is fixedly connected to the L plate (54); a connection groove (55) is provided on the outer wall of the installation arc plate (3); and an output end of the electric telescopic rod (53) is fixedly connected to the connection groove (55).

5. The adjustable prosthetic socket according to claim 1, characterized in that: The connecting ring (41) is provided with an external thread (411), the receiving inner cavity (2) is provided with an internal thread (21), and the external thread (411) is threadably matched with the internal thread (21).

6. The adjustable prosthetic socket according to claim 1, characterized in that: A connecting hole (22) is provided at the bottom of the receiving inner cavity (2).

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