Whether the prosthesis is worn correctly

Whether the prosthesis is worn correctly   Under general circumstances, the amputee stands in the position of the prosthetic leg, feeling that the stump can be evenly loaded in the cavity without pain, and the length of the prosthesis is also appropriate, indicating that the wear position is appropriate. If you feel residual pain, the prosthetic limb is short, perhaps the residual root is too inserted into the receiving cavity, and you need to wear 1-2 layers of socks. If you wear a prosthetic limb, feel the patella ligament can’t bear the load, the load is mostly located below the bone protrusion, and it is possible that the residual limb can’t be inserted in place. Try to reduce a residual cover, and then wear a prosthetic leg to feel appropriate When a patient wears a calf prosthesis, the receiving cavity becomes more inappropriate and the overall feeling is false. After long use, most of the problems due to residual atrophy or thinning of the lining material can be eliminated normally. When you can’t solve the problem, such as the replacement of the receiving cavity, you should contact the installation manufacturer in time to help solve the problem.   shijiazhuang aosuo o&p

Jul 08,2021

How to use a prosthetic orthosis

   How to use a prosthetic orthosis       How to use the prosthesis, how to control the prosthetic orthosis, the following editor organizes the relevant content for everyone to understand.     The prosthetic orthosis is generally single-axis, but the human physiological knee joint is a compound joint. It should have horizontal movement while rotating, so it is gradually replaced by a multi-axis knee joint, which is different from a single-axis knee joint. Compared with the knee joint, the multi-axis knee joint is stable during the support phase and is prone to transition to the swing phase.   The design of the connecting rod structure can well make the amputee maintain stability when the heel is on the ground. When off the ground, the less force of the residual limb can make the joint flexion, and it will not appear in appearance when sitting down. problem. Usually this kind of joint is widely used in the knee joint is the four-bar linkage structure.   In addition, in order to help patients move better, the prosthetic is designed with a swing phase control device, such as a pneumatic control device. This device has the same principle as the hydraulic control device, but the adjustment of the hydraulic device is changed. The shortcomings of restricting knee flexion during the whole gait, and compared with hydraulic knee joints, it reduces the weight and reduces the failure rate.   In the support period, the control method is basically to use muscle strength to control at will. Except for the knee joint of the automatic locking device, the joints of other structures need muscle strength to control. Knee joint The swing phase of the hip joint is played by the flexors and extensors of the hip. If the hip flexor and extensor muscles are strong and the residual limb is long, the control device can be adjusted to a fast walking state. The above is the compilation and release of the prosthetic editor. I hope it will be helpful to everyone. If you want to know more related knowledge or news, please consult us in time. SHIJIAZHUANG AOSUO O&P

Jul 02,2021

3D PROSTHETIC SOCKET

3D PROSTHETIC SOCKET The uncomfortable receiving cavity is a common problem encountered by prosthetic users. This is because the traditional receiving cavity is a single piece of plastic molded according to the user's physical condition at the time. This creates a big problem, because the stress caused by exercise is constantly changing throughout the day.     ProsFit provides a software solution called PandoFit that enables prosthetics doctors to perform 3D scans and create custom limb receiving cavities on the screen. After the design is completed, ProsFit uses 3D printing technology to manufacture the receiving cavity.     The main components of the leg prosthesis are divided into two parts: custom-made receptacles for each residual limb and other parts-such as prosthetic feet, knees and connecting elements. These elements are products produced using standardized traditional processes.     With traditional manufacturing processes, it may take several weeks to install the prosthesis. During this period, most patients are forced to use crutches or confined to a wheelchair, limiting their mobility, and the manufacturing process is expensive and time-consuming. Through the process of digitally designing, assembling and manufacturing the prosthesis receptacle, ProsFit reduces the time required to manufacture and deliver the receptacle from several weeks to several days, with much fewer steps, which helps reduce costs and improve patient comfort .     Using HP's Multi Jet Fusion technology, technicians can choose the direction of the parts on the 3D printer, thereby providing an optimized combination of quality, strength, flexibility and economy. In general, the combination of 3D scanning, software and 3D printing enables 3D printing to change the current production status of prosthetic receptacles and provide a fully digital solution for the prosthetic industry.     In China, the State Council pointed out in the "Several Opinions on Accelerating the Development of Rehabilitation Assistive Devices Industry" that my country is the country with the largest demand for rehabilitation assistive devices and the largest market potential in the world. The additive manufacturing (3D printing technology) proposed in the "Opinions" has played an important role in promoting the design innovation of rehabilitation aids and improving the level of customization. SHIJIAZHUANG AOSUO O&P

Jun 30,2021

Application of 3D printing in prosthetics

Application of 3D printing in prosthetics 1.As 3D printing output materials become more and more diverse, and the applications in medical treatment are increasing day by day, the research team of Virginia Tech recently developed a 3D printed prosthetic leg device with electronic sensors to evaluate the limbs and devices. The pressure distribution makes it more comfortable for the patient to wear.   It is understood that Professor Blake Johnson of the Virginia Institute of Technology used the data collected by the sensors of the prosthesis to improve the device to ensure that the comfort and functionality of the prosthesis can be improved. This research is the function of customized wearable 3D printing devices. Take a big step.   Since customized electronic prostheses are expensive and the comfort may not meet personal standards, the laboratory aims to reduce production costs. The current 3D printed prostheses lack high-end electronic systems, and it is difficult to evaluate whether the user can wear them correctly. For example, when the limb is relaxed or bent, the device will put pressure on different areas of the prosthetic limb.   The report pointed out that the new 3D printing technology integrates materials into the prosthetic fitting area instead of manual adjustment after printing. This can also create different angle positions for different wearer skin characteristics. Compared with traditional methods, new 3D printing technology materials Can be deposited on curved surfaces and objects.   According to the test subjects, although the new prosthesis has high fixation, it also has the characteristics of softness, and the hands can be adjusted to different postures. In addition, 3D printing is relatively easy to operate and inexpensive, gradually replacing traditional prostheses as an indispensable medical application technology.   3D printing is becoming increasingly large in the medical industry market. In addition to achieving the aesthetic effect in the design, it also improves the comfort level. Emerging technologies are positively helping patients on the road to recovery. SHIJIAZHUANG  AOSUO O&P

Jun 28,2021

The choice and application of the knee joint

The choice and application of the knee joint   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 when walking, and complete bending, sitting and other actions without restriction. .   Prostheses began in the 17th century, ranging from simple pendulum mechanisms to rubber cords and springs to pneumatic or hydraulic adjustments. All the way to the present, there are even some smart knee joints with CPU central processing units.   For patients with thigh amputations, the rehabilitation effect is often based on the correct choice of knee joints. The knee joints must be selected according to the patient’s age, physical strength, K-level and lifestyle, in order to maximize the function of the joints. maximize. The latest or most advanced knee joint is not suitable for everyone. For some patients, safety and stability are far more important than powerful functions. Active patients prefer a knee joint with better control and better function.   Therefore, as a prosthetic limb assembler and rehabilitation professional, one should choose the most suitable prosthetic joint according to the consumer’s own situation and needs. They must not deliberately choose expensive products because they are related to the patient’s economic benefits and income generation. The follow-up rehabilitation effect is also related to the trust of patients. It is extremely important to instruct them on how to use their knee joints correctly when choosing the right situation, and avoid discomfort and possible accidents, such as trips and falls, as much as possible.   SHIJIAZHUANG AOSUO O&P

Jun 25,2021

 Application of carbon fiber in the field of prosthetics

 Application of carbon fiber in the field of prosthetics   1. Prosthetic foot It is mainly used to support the weight of the human body and generate thrust during exercise. The prosthetic foot made of carbon fiber composite materials output more than 90% of the accumulated energy, which allows users to save more effort. At present, most of the high-end energy storage prosthetic foot are made of carbon fiber composite materials.   2. Carbon fiber ankle  The linkage between the ankle and the foot of the human body plays a key role in the balance and support of the body. The ankle joint made of carbon fiber can realize the jumping function of the human body. In addition, the joint part of the ankle and the calf prosthesis can also be realized by carbon fiber, and the whole produced is very exquisite.   3. Carbon fiber knee joint    In addition to leg injuries, knee injuries are also common. There are many kinds of materials for making this key. The steel structure is too heavy, the aluminum alloy is weak and not durable, the titanium alloy is too expensive, and carbon fiber is relatively the most cost-effective material. At present, most knee joint prostheses use a carbon fiber frame structure. This type of product is light in weight and stable in structure. When used, the joint swings smoothly and saves effort.    4. Residual limb link cavity   The connecting part of the prosthesis and the human body is called the receiving cavity, which mainly wraps the residual limb and transmits power. This part has high load-bearing requirements and should not be too heavy. Carbon fiber materials can also be used as materials for this part. The part that contains the residual limbs can be made of polyethylene board, and the support body can be made of carbon fiber to make the frame structure to realize easy support and transfer of force.   SHIJIAZHUANG AOSUO O&P

Jun 24,2021