an artificial finger joint

Abstract

The invention provides an artificial finger joint, which belongs to the field of orthopedic medical devices, and comprises an advanced prosthesis and a distal prosthesis hinged on the advanced prosthesis. There is a support element on the side, one end of the support element is movably connected to the side of the proximal prosthesis facing the palm, and the other end of the support element is movably connected to the side of the distal prosthesis facing the palm; the proximal prosthesis and the distal prosthesis One end of the limiting element is fixed on the side of the advanced prosthesis facing away from the palm, and the other end of the limiting element is fixed on the side of the distal prosthesis facing away from the palm. The invention has the advantages of simple structure, reasonable design and convenient installation, which can well restore the flexion and extension motion of the joint, ensure the stability of the joint, and prevent the artificial finger joint from rotating and loosening.

Description

technical field [0001] The invention relates to the field of orthopedic medical devices, in particular to an artificial finger joint. Background technique [0002] Various reasons such as human trauma and disease can cause rheumatic and rheumatoid arthritis to joint pain or stiffness, which seriously affects the function of fingers. At present, the methods for treating finger joint diseases mainly include the following: 1. Using the patient's own foot bone joint transplantation, although the effect of this method is good, but the donor is limited, and the more important thing is that this method can damage another part of the human body Some patients are unwilling to adopt it at the expense of the organization; 2. Arthroplasty, the effect of this method is not good, and the joint function after it is formed is not good; 3. Arthrodesis, the joint performance after this method is poor; 4. 1. Allogeneic hand bone and joint transplantation, this method will cause long-term bone...

AI Technical Summary

Problems solved by technology

At present, the methods for treating finger joint diseases mainly include the following: 1. Using the patient's own foot bone joint transplantation, although the effect of this method is good, but the donor is limited, and the more important thing is that this method can damage another part of the human body 2. Arthroplasty, the effect of this method is not good, and the joint function after it is formed is not good; 3. Arthrodesis, the joint performance after this method is poor; 4. 1. Allogeneic hand bone and joint transplantation, this method will cause long-term bone resorption, and the effect is not good; 5. Artificial joint replacement, this method may recover function after operation due to unsatisfactory materials or structural design defects still unsatisfactory

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