Artificial limb joint and artificial limb

Abstract

The utility model discloses an artificial limb joint and an artificial limb, the artificial limb joint comprises an upper joint and a lower joint, the upper joint is hinged with the lower joint; an opening is formed in the rear portion of the lower joint in the length direction of the lower joint, a reinforcing plate is arranged in the opening, and the reinforcing plate is connected with the inner walls of the two sides of the lower joint in the width direction. According to the embodiment of the utility model, the two side walls of the lower joint are connected and supported through the reinforcing plate arranged in the opening at the rear part of the artificial limb joint, so that the torsional strength of the artificial limb joint can be obviously enhanced, the artificial limb joint is not easy to deform in the use process, and the service life of the artificial limb joint is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to a prosthetic joint and a prosthesis. Background Art

[0002] The overall degree of freedom configuration of existing prosthetic joint structures can basically meet the needs of daily movement.

[0003] Long prosthetic joints often have a large (or long) opening at the rear. However, due to the torsional forces present during joint use, the large opening reduces the joint's torsional strength, which can easily cause distortion or even damage to the joint's overall structure, shortening the prosthetic joint's service life. Utility Model Content

[0004] In view of this, the present invention provides a prosthetic joint and a prosthetic limb, which are used to solve the problem of low torsional strength of prosthetic joints in the prior art.

[0005] To achieve one, part, or all of the above purposes or other purposes, the present invention provides: a prosthetic joint, comprising: an upper joint and a lower joint, wherein the upper joint and the lower joint are hinged;

[0006] The rear portion of the lower joint is provided with an opening along its length direction, and a reinforcing plate is provided in the opening. The reinforcing plates are respectively connected to the inner walls on both sides of the width direction of the lower joint.

[0007] Preferably, the reinforcing plate and the lower joint are integrally formed.

[0008] Preferably, the reinforcing plate is welded to the lower joint or connected with bolts.

[0009] Preferably, the upper joint includes an upper support arm, a connecting head, a connecting arm and a hydraulic damping cylinder, the connecting head is hinged to the upper end of the upper support arm, one end of the connecting head is hinged to the upper end of the connecting arm and the upper end of the hydraulic damping cylinder respectively, and the lower end of the hydraulic damping cylinder is hinged to the lower end of the upper support arm.

[0010] Preferably, the lower joint includes a lower support arm, a U-shaped swing frame and a hydraulic telescopic rod, the lower end of the upper support arm is hinged to the upper end of the lower support arm, the middle part of the swing frame is hinged to the upper end of the lower support arm, and the lower end of the connecting arm and the upper end of the hydraulic telescopic rod are respectively coaxially hinged to one end of the swing frame.

[0011] Preferably, an adjustment sleeve is rotatably provided on the hydraulic telescopic rod, and the adjustment sleeve is used for transmission connection with the valve core in the hydraulic telescopic rod.

[0012] Preferably, a plurality of rotation adjustment holes are evenly spaced apart on the circumferential side wall of the adjustment sleeve.

[0013] Preferably, an adjustment window is provided in the middle of the reinforcing plate, and the position of the adjustment window corresponds to the adjustment hole.

[0014] The utility model also provides: a prosthesis, comprising the prosthetic joint.

[0015] The implementation of the present invention will have the following beneficial effects:

[0016] After adopting the above-mentioned prosthetic joint, the two side walls of the lower joint are connected and supported by a reinforcing plate arranged in the rear opening of the prosthetic joint, which can significantly enhance the torsional strength of the prosthetic joint, making it less likely for the prosthetic joint to deform during use, thereby extending the service life of the prosthetic joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] in:

[0019] Figure 1 Schematic diagram of the overall structure of the prosthetic joint proposed in this utility model Figure 1 ;

[0020] Figure 2 Schematic diagram of the overall structure of the prosthetic joint proposed in this utility model Figure 2 ;

[0021] Figure 3 Schematic diagram of the overall structure of the prosthetic joint proposed in this utility model Figure 3 ;

[0022] Figure 4 This is a schematic structural diagram of the hydraulic telescopic rod of the prosthetic joint proposed in the utility model.

[0023] Figure numerals: 10, upper joint; 11, upper support arm; 12, connecting head; 13, connecting arm; 14, hydraulic damping cylinder; 20, lower joint; 21, opening; 22, lower support arm; 23, swing frame; 24, hydraulic telescopic rod; 241, adjustment sleeve; 242, rotation adjustment hole; 30, reinforcement plate; 31, adjustment window. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this invention pertains; the terms used in the specification of the application are for the purpose of describing specific embodiments only and are not intended to limit this invention; the terms "including" and "having" and any variations thereof in the specification and claims of this invention and the accompanying drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" and the like in the specification and claims of this invention and the accompanying drawings are used to distinguish different objects, not to describe a specific order.

[0025] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] like Figure 1-4 The following are examples provided by the present invention.

[0028] The embodiment of the present utility model provides a prosthetic joint, comprising: an upper joint 10 and a lower joint 20, wherein the upper joint 10 and the lower joint 20 are hinged, and both the upper joint 10 and the lower joint 20 can swing around the hinge axis. An opening 21 is provided at the rear portion of the lower joint 20 along its own length direction, so that the lower joint 20 is similar to a strip-shaped groove, and the opening 21 is a notch. A reinforcing plate 30 is provided in the opening 21, and the reinforcing plate 30 is respectively connected to the inner walls on both sides of the width direction of the lower joint 20. The reinforcing plate 30 and the lower joint 20 are integrally formed, and the reinforcing plate 30 and the lower joint 20 can also be welded or connected by bolts. The reinforcing plate 30 can be in the form of a plate, or can be replaced by a plurality of reinforcing ribs, thereby connecting and supporting the two side walls of the lower joint 20, which can significantly enhance the torsional strength of the prosthetic joint, making the prosthetic joint less likely to deform during use, thereby extending the service life of the prosthetic joint.

[0029] Specifically, the upper joint 10 comprises an upper support arm 11, a connecting head 12, a connecting arm 13 and a hydraulic damping cylinder 14, the connecting head 12 is hinged at the upper end of the upper support arm 11, one end of the connecting head 12 is hinged with the upper end of the connecting arm 13 and the upper end of the hydraulic damping cylinder 14 respectively, and the lower end of the hydraulic damping cylinder 14 is hinged with the lower end of the upper support arm 11. The lower joint 20 comprises a lower support arm 22, a U-shaped swing frame 23 and a hydraulic telescopic rod 24, the lower end of the upper support arm 11 is hinged with the upper end of the lower support arm 22, the middle part of the swing frame 23 is hinged with the upper end of the lower support arm 22, and the lower end of the connecting arm 13 and the upper end of the hydraulic telescopic rod 24 are coaxially hinged with one end of the swing frame 23 respectively. The upper support arm 11, the connecting head 12, the connecting arm 13, the hydraulic damping cylinder 14 of the upper joint 10 and the lower support arm 22, the swing frame 23 and the hydraulic telescopic rod 24 of the lower joint 20 cooperate to form a multi-stage linkage mechanism, which can achieve the effect of linkage cooperation. In some embodiments, for example, when the prosthetic joint is used in the lower limbs of patients, the upper joint 10 can be used to connect the end of the thigh amputation of the patient, and the lower joint 20 can be used to connect the foot prosthesis. The linkage cooperation of the upper joint 10 and the lower joint 20 can approach the state of normal limb movement, wherein the hydraulic damping cylinder 14 is used to adjust the flexion speed when the upper joint 10 and the lower joint 20 flex and extend, and the hydraulic telescopic rod 24 is used to assist the reset of the upper joint 10 and the lower joint 20. It can be understood that the principle of linkage cooperation is a common technology in the field of existing prostheses or mechanical arms, and related parts can be directly purchased on the market.

[0030] Further, the hydraulic telescopic rod 24 is rotationally provided with an adjusting sleeve 241, and the adjusting sleeve 241 is in transmission connection with a valve core in the hydraulic telescopic rod 24, so as to adjust the elastic force of the rebound of the hydraulic telescopic rod 24.

[0031] Further, a plurality of rotation adjusting holes 242 are uniformly and interval ly arranged on the circumferential side wall of the adjusting sleeve 241, and the rotation adjusting holes 242 are used for inserting a pin, so as to facilitate the rotation of the adjusting sleeve 241. Correspondingly, the middle part of the reinforcing plate 30 is provided with an adjusting window 31, and the position of the adjusting window 31 corresponds to the rotation adjusting hole 242. The operator can insert the pin from the adjusting window 31 into each rotation adjusting hole 242 for use.

[0032] The utility model further provides: a kind of artificial limb, including the artificial limb joint described above.

[0033] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A prosthetic joint, characterized in that: include: An upper joint (10) and a lower joint (20), wherein the upper joint (10) and the lower joint (20) are hinge-connected; The rear portion of the lower joint (20) is provided with an opening (21) along its length direction, and a reinforcing plate (30) is provided in the opening (21). The reinforcing plate (30) is respectively connected to the inner walls on both sides of the width direction of the lower joint (20).

2. The prosthetic joint according to claim 1, wherein: The reinforcing plate (30) and the lower joint (20) are integrally formed.

3. The prosthetic joint according to claim 1, wherein: The reinforcing plate (30) is welded to the lower joint (20) or connected via bolts.

4. The prosthetic joint according to claim 1, wherein: The upper joint (10) comprises an upper support arm (11), a connecting head (12), a connecting arm (13) and a hydraulic damping cylinder (14); the connecting head (12) is hinged to the upper end of the upper support arm (11); one end of the connecting head (12) is hinged to the upper end of the connecting arm (13) and the upper end of the hydraulic damping cylinder (14); and the lower end of the hydraulic damping cylinder (14) is hinged to the lower end of the upper support arm (11).

5. The prosthetic joint according to claim 4, characterized in that The lower joint (20) comprises a lower support arm (22), a U-shaped swing frame (23) and a hydraulic telescopic rod (24); the lower end of the upper support arm (11) is hinged to the upper end of the lower support arm (22); the middle part of the swing frame (23) is hinged to the upper end of the lower support arm (22); the lower end of the connecting arm (13) and the upper end of the hydraulic telescopic rod (24) are respectively coaxially hinged to one end of the swing frame (23).

6. The prosthetic joint according to claim 5, characterized in that An adjusting sleeve (241) is rotatably provided on the hydraulic telescopic rod (24), and the adjusting sleeve (241) is used for transmission connection with a valve core in the hydraulic telescopic rod (24).

7. The prosthetic joint according to claim 6, characterized in that A plurality of rotation adjustment holes (242) are evenly spaced apart on the circumferential side wall of the adjustment sleeve (241).

8. The prosthetic joint according to claim 7, wherein: An adjustment window (31) is provided in the middle of the reinforcing plate (30), and the position of the adjustment window (31) corresponds to the adjustment hole.

9. A prosthesis, characterized in that: The prosthetic joint comprises the prosthetic joint according to any one of claims 1 to 8.

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