Artificial limb used after lower limb rotational plasty

Abstract

The utility model discloses a postoperative prosthetic limb for lower limb rotational plasty, which comprises a prosthetic foot, a connecting tube, a receiving cavity, a skin enclosure and a hinge component, the two groups of hinge assemblies are symmetrically arranged between the receiving cavity and the leather enclosure and are fixedly connected with the receiving cavity and the leather enclosure respectively; and a plurality of groups of tensioning belts are detachably connected to an opening in the side part of the leather enclosure. The utility model has the advantages that the leather enclosure is matched with the tensioning belt according to the specific condition of a wearer, and compared with a closed leather enclosure, the leather enclosure does not need to be replaced frequently and is convenient to wear; the hinge assembly is used for limiting the compensated ankle joint, so that the effect of the knee joint is simulated, and inward and outward turning and hyperextension of the knee joint of the artificial limb are limited; the upper connecting piece and the lower connecting piece are arranged between the upper supporting strip and the lower supporting strip, can be conveniently replaced when being seriously abraded, and are not connected with the receiving cavity and the leather enclosure, so that the flexibility and the stability are effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of prostheses, in particular to a prosthesis for lower limb rotationplasty surgery. Background Art

[0002] Patients who have undergone lower limb amputation need to wear prostheses. Existing prostheses are divided into: partial foot prostheses, Syme prostheses, calf prostheses, knee disarticulation prostheses, thigh prostheses, and hip disarticulation prostheses. Patients with amputations at different locations can only be fitted with prostheses corresponding to the amputation location. After lower limb rotationplasty, patients need to wear matching prostheses to walk normally. However, when walking with prostheses after lower limb rotationplasty in the prior art, it is easy for the prostheses to turn inside out, causing unstable walking. Secondly, the thigh skin circumference is closed, and when the patient gains weight or loses weight, the prosthesis needs to be replaced, causing many inconveniences to the patient. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a prosthesis for lower limb rotationplasty surgery with stable walking.

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

[0005] A prosthesis for postoperative rotationplasty of the lower limbs comprises a prosthetic foot, a connecting tube, a receiving cavity, a leather girdle and a hinge assembly; two groups of the hinge assemblies are symmetrically arranged between the receiving cavity and the leather girdle, and are fixedly connected to the receiving cavity and the leather girdle respectively; a plurality of groups of tensioning belts are detachably connected to the side opening of the leather girdle.

[0006] Furthermore, the rotating part of the hinge assembly is located in the gap between the receiving cavity and the leather enclosure.

[0007] Furthermore, the hinge assembly includes an upper support bar, an upper connecting member, a lower connecting member, and a lower support bar; the lower end of the upper support bar is fixedly connected to the upper end groove of the upper connecting member; the lower end of the upper connecting member is rotatably connected to the upper end of the lower connecting member; the upper end of the lower support bar is fixedly connected to the lower end groove of the lower connecting member.

[0008] Furthermore, a lifting strap is fixedly connected to the side of the leather band.

[0009] Furthermore, an inner sleeve is attached to the inner wall of the receiving cavity. The inner sleeve is an EVA foam material. The EVA foam material can improve the comfort of the patient and the receiving cavity, and has the effect of reducing friction and buffering shock.

[0010] Furthermore, the leather band is made of cowhide.

[0011] Beneficial effects of the utility model:

[0012] By setting the leather belt and the tightening belt, it can be adapted according to the specific situation of the wearer. Compared with the closed leather belt, it does not need to be replaced frequently and is easy to wear. The hinge assembly is used to limit the compensatory ankle joint, thereby simulating the role of the knee joint and limiting the inversion and hyperextension of the prosthetic knee joint. The upper and lower connecting parts are set between the upper support bars and the lower support bars for convenient replacement when they are severely worn, and they are not connected to the receiving cavity and the leather belt, effectively ensuring flexibility and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a side structural schematic diagram of the utility model;

[0014] Figure 2 It is a front structural schematic diagram of the utility model;

[0015] Figure 3 A schematic diagram of the structure of the hinge assembly.

[0016] In the figure, 1-artificial foot, 2-connecting tube, 3-receiving cavity, 4-skin ring, 5-hinge assembly, 6-tension belt, 7-lifting belt, 8-inner sleeve, 51-upper support bar, 52-upper connecting piece, 53-lower connecting piece, 54-lower support bar. DETAILED DESCRIPTION

[0017] 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.

[0018] Reference Figure 1-3 As shown, a prosthesis for postoperative rotationplasty of lower limbs includes a prosthetic foot 1, a connecting tube 2, a receiving cavity 3, a leather circumference 4 and a hinge assembly 5; two sets of hinge assemblies 5 are symmetrically arranged between the receiving cavity 3 and the leather circumference 4, and are respectively fixedly connected to the receiving cavity 3 and the leather circumference 4; a plurality of sets of tension belts 6 are detachably connected to the side opening of the leather circumference 4. The prosthetic foot 1 can provide overall support for the body; the connecting tube 2 can be adjusted in height as needed to ensure that the height of the two legs is flush; the receiving cavity 3 is a cavity component that accommodates the sole of the foot and connects the sole of the foot with the prosthesis; the leather circumference 4 can wrap the thigh and play a suspension function; the hinge assembly 5 has a bending function and is a component that ensures normal walking; the tension belt 6 can fix the leather circumference 4 and adjust the tightness.

[0019] Specifically, in order to ensure that the rotating part of the hinge assembly 5 does not cause friction to the human skin during walking, the rotating part of the hinge assembly 5 is located in the gap between the receiving cavity 3 and the leather belt 4, and the rotating parts of the two groups of hinge assemblies 5 are in a relatively open concave shape. This arrangement can ensure stable force while avoiding contact with human skin.

[0020] Specifically, the hinge assembly 5 includes an upper support bar 51, an upper connecting piece 52, a lower connecting piece 53, and a lower support bar 54; the lower end of the upper support bar 51 is fixedly connected to the upper end groove of the upper connecting piece 52; the lower end of the upper connecting piece 52 is rotatably connected to the upper end of the lower connecting piece 53; the upper end of the lower support bar 54 is fixedly connected to the lower end groove of the lower connecting piece 53. The upper support bar 51 and the lower support bar 54 are curved, which is convenient for matching with the upper connecting piece 52 and the lower connecting piece 53 respectively; the upper connecting piece 52 and the lower connecting piece 53 are separately arranged, which can be easily replaced when they are seriously worn, and are not connected to the receiving cavity 3 and the leather circumference 4, which effectively ensures flexibility and stability.

[0021] Specifically, in order to facilitate the patient to wear, a lifting strap 7 is fixedly connected to the side of the leather belt 4.

[0022] Specifically, in order to buffer and reduce shock, reduce the friction between the skin and the cavity, and improve comfort, an inner lining sleeve 8 is attached to the inner wall of the receiving cavity 3.

[0023] Specifically, in order to further improve the comfort of the patient, the leather band 4 is made of cowhide.

[0024] The working principle of this utility model:

[0025] When using the prosthesis, the patient first unfastens the tightening belt 6 at the leather circumference 4, puts the lower limbs into the prosthesis, inserts the feet into the receiving cavity 3, and then adjusts the tightness of the tightening belt 6 according to the patient's fatness or thinness. When the patient's prosthesis is adapted, the connecting tube 2 can be adjusted in height according to the patient's feet to ensure the stable standing of the feet. When walking, the hinge assembly 5 is used to limit the compensatory ankle joint, thereby simulating the role of the knee joint, limiting the inversion and hyperextension of the prosthetic knee joint, and ensuring stability and flexibility.

[0026] 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 prosthesis for use after lower limb rotationplasty, comprising a prosthetic foot (1), a connecting tube (2), and a receiving cavity (3), characterized in that: It also includes a leather belt (4) and a hinge assembly (5); two groups of the hinge assembly (5) are symmetrically arranged between the receiving cavity (3) and the leather belt (4), and are fixedly connected to the receiving cavity (3) and the leather belt (4) respectively; and a plurality of groups of tensioning belts (6) are detachably connected to the side opening of the leather belt (4).

2. A prosthesis for postoperative rotationplasty of lower limbs according to claim 1, characterized in that: The rotating parts of the two sets of hinge assemblies (5) are located in the gap between the receiving cavity (3) and the leather enclosure (4).

3. A prosthesis for postoperative rotationplasty of lower limbs according to claim 1, characterized in that: The hinge assembly (5) comprises an upper support bar (51), an upper connecting member (52), a lower connecting member (53), and a lower support bar (54); the lower end of the upper support bar (51) is fixedly connected to the upper end groove of the upper connecting member (52); the lower end of the upper connecting member (52) is rotatably connected to the upper end of the lower connecting member (53); the upper end of the lower support bar (54) is fixedly connected to the lower end groove of the lower connecting member (53).

4. A prosthesis for postoperative rotationplasty of lower limbs according to claim 1, characterized in that: A lifting belt (7) is fixedly connected to the side of the leather belt (4).

5. The prosthesis for postoperative rotationplasty of lower limbs according to claim 1, characterized in that: An inner lining sleeve (8) is fitted onto the inner wall of the receiving cavity (3).

6. A prosthesis for postoperative rotationplasty of lower limbs according to claim 1, characterized in that: The leather band (4) is made of cowhide.

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