Limitable suspension sialm prosthesis

Abstract

The utility model discloses a limitable suspension sialm prosthesis. The limitable suspension sialm prosthesis comprises a prosthesis body, a neck bush, a receiving cavity and a limiting part, the upper end of the artificial limb body is fixedly connected with the receiving cavity; the neck bush is attached to the inner wall surface of the receiving cavity; a limiting part is arranged on the neck bush; and a through hole matched with the limiting part is formed in the receiving cavity. The utility model has the advantages that the neck bush can play a role in protecting the skin of the stump and reduce the stimulation and damage of friction and pressure to the skin; the limiting part can effectively prevent the neck bush and the prosthetic socket from rotating; the first air holes and the second air holes can prevent sweat from being generated in the socket, so that the probability of rotation between the neck bush and the artificial limb socket is further increased.

Description

Technical Field

[0001] The utility model relates to the technical field of prostheses, in particular to a limitable suspended Syme prosthesis. Background Art

[0002] Syme amputation is a form of amputation surgery that is widely used in clinical practice. Patients who need to walk after Syme amputation need to wear prostheses. The current traditional Syme prostheses are inconvenient to wear and require patellar ligament support, an inner opening on the receiving cavity or a posterior opening, and a ring belt for suspension. However, due to the low opening of the prosthetic receiving cavity, the inner sleeve on the residual limb and the prosthetic receiving cavity are prone to rotation during long-term wearing, causing the positional relationship between the residual limb and the foot to change, changing the alignment and affecting the walking ability, which can easily cause patients to abandon the prosthesis. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a limitable suspension Syme prosthesis, which can effectively prevent the inner liner sleeve and the prosthesis receiving cavity from rotating.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A limitable suspended Syme prosthesis comprises a prosthesis body, an inner sleeve, a receiving cavity and a limit portion; the upper end of the prosthesis body is fixedly connected to the receiving cavity; the inner sleeve is fitted to the inner wall surface of the receiving cavity; the inner sleeve is provided with a limit portion; the receiving cavity is provided with a through hole matching the limit portion.

[0006] Furthermore, the limiting portion is a cylinder made of EVA material; and the inner sleeve is made of EVA material.

[0007] Furthermore, the limiting portion is bonded to the inner sleeve.

[0008] Furthermore, the limiting portion includes a connecting seat and a limiting column; the connecting seat is fixedly connected to the inner sleeve; one end of the limiting column passes through the through hole and can be threadedly connected to the connecting seat.

[0009] Furthermore, the connecting seat and the limiting column are made of resin.

[0010] Furthermore, the connection seat and the inner sleeve are connected by bonding.

[0011] Furthermore, a protrusion is integrally formed at one end of the limiting column away from the connecting seat.

[0012] Furthermore, a first air hole is provided on the inner sleeve; a second air hole is provided on the receiving cavity; and the first air hole and the second air hole are coaxially provided.

[0013] Beneficial effects of the utility model:

[0014] The inner liner can protect the skin of the residual limb and reduce the irritation and damage to the skin caused by friction and pressure; the limit part can effectively prevent the inner liner and the prosthetic receiving cavity from rotating; the first air hole and the second air hole can prevent the production of sweat inside the receiving cavity, which further increases the probability of rotation between the inner liner and the prosthetic receiving cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 An enlarged view of the first embodiment at A;

[0017] Figure 3 for Figure 1 An enlarged view of the second embodiment at A in the middle;

[0018] Figure 4 for Figure 1 The enlarged view of point B in the middle;

[0019] In the figure, 1-prosthesis body, 2-inner sleeve, 3-receiving cavity, 4-limiting part;

[0020] 21- first vent hole;

[0021] 31-through hole, 32-second vent hole;

[0022] 41-connecting seat, 42-limiting column, 43-bump. DETAILED DESCRIPTION

[0023] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Reference Figure 1-4 As shown, a limitable suspended Syme prosthesis includes a prosthesis body 1, an inner sleeve 2, a receiving cavity 3 and a limiting portion 4; the upper end of the prosthesis body 1 is fixedly connected to the receiving cavity 3; the inner sleeve 2 is fitted to the inner wall surface of the receiving cavity 3; the inner sleeve 2 is provided with a limiting portion 4; and the receiving cavity 3 is provided with a through hole 31 matching the limiting portion 4.

[0025] The prosthesis body 1 is the core part of the prosthesis, which is composed of suitable materials and structures and is used to replace the missing limb part; the inner sleeve 2 can protect the skin of the residual limb, reduce the stimulation and damage to the skin caused by friction and pressure, and help prevent the occurrence of complications such as skin damage and ulcers. The receiving cavity 3 can provide support, stability and comfort, ensure that the prosthesis can be correctly fixed on the residual limb, and provide a good user experience. The limiter 4 can effectively prevent the inner sleeve 2 and the receiving cavity 3 from rotating, ensuring that the prosthesis walks more stably.

[0026] Specifically, the limiting part 4 is a cylinder made of EVA material; the inner sleeve 2 is made of EVA material. The cylinder made of EVA material can facilitate the limiting part 4 to be placed in the through hole 31, thereby improving the limiting effect; and the inner sleeve 2 is made of EVA material to improve the comfort of the patient.

[0027] Specifically, in order to facilitate fixing of the limiting portion 4 and the inner bushing 2 , the limiting portion 4 and the inner bushing 2 are bonded.

[0028] As another embodiment, the limiting part 4 includes a connection seat 41 and a limiting column 42; the connection seat 41 is fixedly connected to the inner sleeve 2; one end of the limiting column 42 passes through the through hole 31 and is threadedly connected to the connection seat 41. The threaded connection between the connection seat 41 and the limiting column 42 can not only limit the position, but also facilitate the patient to wear it.

[0029] Specifically, the connection base 41 and the limiting column 42 are made of resin material. The resin material has plasticity, corrosion resistance and good insulation performance.

[0030] Specifically, the connection seat 41 and the inner sleeve 2 are connected by bonding.

[0031] Specifically, in order to further ensure the stability of the limiting, a protrusion 43 is integrally formed on one end of the limiting column 42 away from the connecting seat 41 .

[0032] As another embodiment, in order to prevent the generation of sweat inside the receiving cavity 3 and further increase the probability of rotation between the inner sleeve 2 and the prosthetic receiving cavity 3, a first air hole 21 is opened on the inner sleeve 2; a second air hole 32 is opened on the receiving cavity 3; the first air hole 21 and the second air hole 32 are opened coaxially.

[0033] The working principle of this utility model:

[0034] When the patient uses the limitable suspension Syme prosthesis, the receiving cavity 3 is fixed to the inside of the prosthesis body 1, and then the inner sleeve 2 is fitted into the receiving cavity 3. At this time, if a cylinder made of EVA material is used as the limiting part 4, then because the through hole 3 matches the cylinder made of EVA material, and the inner sleeve 2 is made of soft material, the limiting part 4 can be placed in the through hole 31 through appropriate adjustment to limit the inner sleeve 2 and the receiving cavity 3; if the connection seat 41 and the limiting column 42 are threadedly connected for limiting, the inner sleeve 2 is placed in the receiving cavity 3 so that the position of the connection seat 41 is exactly located at the through hole 31, and then the limiting column 42 is threadedly connected to the connection seat 41 to complete the limiting operation; when in use, the protrusion 43 can prevent the limiting column 42 from being installed too deep and unable to be removed; the first air vent 21 and the second air vent 32 can prevent the generation of sweat inside the receiving cavity 3, further increasing the probability of rotation between the inner sleeve 2 and the prosthesis receiving cavity 3.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A limitable suspension Syme prosthesis, characterized in that: The prosthesis comprises a prosthesis body (1), an inner sleeve (2), a receiving cavity (3) and a limiting portion (4); the upper end of the prosthesis body (1) is fixedly connected to the receiving cavity (3); the inner sleeve (2) is fitted to the inner wall surface of the receiving cavity (3); the inner sleeve (2) is provided with a limiting portion (4); the receiving cavity (3) is provided with a through hole (31) matching the limiting portion (4); The limiting portion (4) comprises a connecting seat (41) and a limiting column (42); the connecting seat (41) is fixedly connected to the inner bushing (2); one end of the limiting column (42) passes through the through hole (31) and can be threadedly connected to the connecting seat (41); The inner sleeve (2) is provided with a first air vent (21); the receiving cavity (3) is provided with a second air vent (32); the first air vent (21) and the second air vent (32) are coaxially arranged.

2. The position-limited suspension Syme prosthesis according to claim 1, characterized in that: The limiting portion (4) is a cylinder made of EVA material; and the inner sleeve (2) is made of EVA material.

3. The position-limited suspension Syme prosthesis according to claim 2, characterized in that: The limiting portion (4) is bonded to the inner liner (2).

4. The position-limited suspension Syme prosthesis according to claim 1, characterized in that: The connecting seat (41) and the limiting column (42) are made of resin.

5. The position-limited suspension Syme prosthesis according to claim 4, characterized in that: The connection seat (41) and the inner sleeve (2) are connected by bonding.

6. The position-limited suspension Syme prosthesis according to claim 1, characterized in that: A protrusion (43) is integrally formed on one end of the limiting column (42) away from the connecting seat (41).

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