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Novel passive rotator for skeletal prosthetic arm

A rotator and prosthetic arm technology, applied in the field of new passive rotators, can solve the problems of short length and too long upper arm

Pending Publication Date: 2020-10-30
SHANGHAI KESHENG PROSTHESES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The innovation of this invention is: the upper arm connection ring and the passive rotator are combined into one, the upper arm connection tube of the existing skeletal prosthesis is removed, and the length of the prosthesis above the elbow joint is extremely short, which solves the problem of the long stump of the upper arm and the elbow joint. Excessive upper arm problem with existing skeletal upper arm prosthesis for partial amputee

Method used

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  • Novel passive rotator for skeletal prosthetic arm

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Embodiment Construction

[0019] Specific implementation examples

[0020] figure 1 is the structural principle of a new passive rotator for skeletal prosthetic arms, composed of figure 1 It can be seen that the rotator has a ring structure. The elbow joint 1 of the skeletal prosthesis is connected with the short joint 3, and the connecting disc 5 is connected with the upper arm barrel 6 of the prosthetic limb. There is a friction ring 4 between the short joint 3 and the connecting disc 5, forming a frictional rotation connection.

[0021] After the pressure plate 2 is put into the friction ring 4, it is fixed on the short joint 3 with the friction ring screw 7, and then the pressure plate 2 and the connection plate 5 are clamped with the clamping screw 8, and the friction rotation resistance is adjusted by the degree of clamping.

[0022] In this description, the present invention only describes one embodiment, and it is obvious that the specific implementation structure can still be changed accor...

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Abstract

The invention relates to a novel passive rotator for a skeletal artificial arm. The novel passive rotator is provided with an annular structure and is arranged above a skeletal artificial arm elbow joint. A connecting disc is arranged on the passive rotator and is used for connecting an upper arm cylinder; a short joint is used for being connected with the skeletal artificial arm elbow joint. A friction ring is fixed with the short joint, a pressing plate is fixed with the connecting disc, clamps the friction ring, the elbow joint, the short joint and the friction ring into a whole, and can rotate relative to the connecting disc provided with the upper arm cylinder, so that the upper arm of the artificial limb can passively rotate, and the rotating friction resistance can be adjusted by aclamping screw. According to the innovative structure, an upper arm connecting pipe and a connector of an existing skeleton type artificial limb are removed, so that the length above an elbow joint ofthe artificial limb is extremely short, and the problem that the upper arm of the existing skeleton type upper arm artificial limb is too long for an upper arm long stump and elbow amputee is solved.

Description

technical field [0001] The invention relates to the technical field of artificial limbs, in particular to the technical field of skeletal artificial limbs, in particular to a novel passive rotator for skeletal artificial arms. Background technique [0002] In the existing skeletal prosthesis, the arm tube and the elbow joint are connected by a connecting plate, and a connecting pipe is installed on the connecting plate. There is a joint between the connecting pipe and the elbow joint, and the joint and the connecting pipe can be passively rotated. The structure is complex, occupying the length of the space above the elbow joint, so that the upper arm of the prosthesis is too long for those with long residual limbs. In order to solve the above shortcomings of the existing skeletal prosthesis, it is necessary to develop a shorter passive rotator for the skeletal prosthesis . Contents of the invention [0003] The present invention is a novel passive rotator for bone prost...

Claims

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Application Information

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IPC IPC(8): A61F2/54
CPCA61F2/54A61F2002/546
Inventor 不公告发明人
Owner SHANGHAI KESHENG PROSTHESES
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