Selection and Application of knee joint of prosthesis leg
Release Time:
Sep 26,2019
Selection and Application of knee joint of prosthesis leg
The knee joint is the most complicated part of all prosthetic accessories. It needs to provide stable and reliable support during the standing period, smooth and controlled movement during walking, and unrestricted bending, sitting and other actions. .
Prosthetics began in the 17th century, from simple pendulum mechanisms to rubber cords and springs to pneumatic or hydraulic adjustments. All the way up to now, there are even some smart knee joints with CPU .
For thigh amputation patients, the rehabilitation effect is often based on the correct choice of the knee joint, according to the patient's age, physical strength, K-level (K-level) and lifestyle to choose the knee joint, in order to play the function of the joint maximize. The latest or most advanced knee joints are not for everyone, and for some patients, safety and stability are far more important than powerful features. Active patients prefer knees with better control and better function.
Therefore, as prosthetic assemblers and rehabilitation professionals, the most suitable prosthetic joints should be selected according to the consumers' own conditions and needs. They must not deliberately choose expensive products because they pursue their own economic benefits and income generation, because this is related to patients. The effect of subsequent rehabilitation is also related to the trust of patients. You should be guided to choose how to use their knees properly, and to avoid discomfort and possible accidents, such as tripping and wrestling, is extremely important.
A key way to assess the needs of a prosthetic is to observe his or her walking cycle, which is divided into a "standing period" and a "swing period." For each person, the balance between the two stages is different.
Although there are hundreds of thousands of knee joints on the market, they are basically two categories: mechanical joints and smart joints. Mechanical joints are further divided into two types: uniaxial joints and multiaxial joints. Regardless of how complex their structure is, additional stability control mechanisms (manual or load-bearing self-locking) and mechanisms for controlling the swing period (constant damping, variable damping, and fluid controlled such as pneumatic pressure) are required.
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