The width of the fixing belt is one of the key factors affecting pressure dispersion. A wider fixing belt can increase the contact area with the body, thereby evenly dispersing the pressure around the waist and reducing the oppression caused by local pressure concentration on the skin and muscles. Hanfuse expandable lumbar cage usually uses a fixing belt of moderate width, such as 5-8 cm, which can not only ensure sufficient contact area, but also will not be too bloated to affect the wearing comfort. In terms of material, fabrics with certain elasticity and breathability are often selected, such as spandex and cotton blended materials. This material can not only adapt to the slight deformation of the waist during activities and provide a comfortable fit, but also allow the skin to breathe, reducing the stuffiness and sweat accumulation caused by long-term wearing.
To prevent the fixing belt from slipping, its surface is often designed with special textures. These textures can increase the friction between the fixing belt and clothing or skin, so that the fixing frame remains stable on the body. For example, the use of fine dot-shaped protrusions or horizontal anti-slip stripes can effectively improve the anti-slip performance of the fixing belt without irritating the skin. In addition, some high-end Hanfuse cages also add silicone strips on the inside of the straps. The high friction coefficient of silicone further enhances the fit with the skin, and can be firmly fixed at the waist even when the body is moving or sweating.
Convenient and precise adjustment methods are essential for the effective pressure dispersion of the straps. Hanfuse expandable lumbar cages are usually equipped with high-quality adjustment buckles, such as Velcro or plastic buckles. Velcro can easily adjust the tightness of the straps, and patients can make fine adjustments based on their own comfort and lumbar support needs. Plastic buckles provide a more stable connection to ensure that the straps will not accidentally loosen after adjustment. The position design of the adjustment buckles has also been carefully considered. They are generally located on the side of the body or in front of the abdomen, which is convenient for patients to operate with one hand, while avoiding discomfort or compression behind the waist.
The connection method between the straps and the main bracket of the lumbar cage directly affects the pressure transmission and overall stability. A strong suture or riveting process is used to ensure that the straps will not fall off the bracket when subjected to large tensile forces. The distribution of the connection points also follows the principle of mechanics and is evenly distributed in the key parts of the bracket, so that the tension applied by the fixing belt can act evenly on the bracket, thereby providing all-round stable support for the lumbar spine. For example, connection points are set at the upper and lower ends and the middle of the bracket to form a triangular or trapezoidal tension distribution structure, which effectively disperses the pressure and enhances the overall stability of the bracket.
Through ergonomic and mechanical tests, the effectiveness of the fixing belt design in pressure dispersion can be verified. Pressure sensors are used to measure different parts of the wearer's waist to analyze the pressure dispersion of the fixing belt in different activity states (such as standing, walking, bending, etc.). Experimental data show that a reasonably designed Hanfuse fixing belt can evenly distribute the pressure on the waist over a larger area, reduce the local pressure peak, thereby reducing the burden on the lumbar spine and promoting the recovery and protection of the lumbar spine.
Based on a large amount of clinical use feedback, the design of the fixing belt is continuously optimized. The actual use experience of patients and medical staff provides valuable suggestions for improvement. For example, if it is found that some patients still have the fixation belt slipping during specific activities, further research will be conducted to improve anti-slip measures; if some patients report that the fixation belt has marks or discomfort after wearing it for a long time, the elasticity and softness of the material will be adjusted. Through this clinical feedback-driven improvement mechanism, the fixation belt design of the hanfuse expandable lumbar cage is constantly improving to better meet the needs of patients.
With the continuous advancement of technology, the fixation belt design of the hanfuse expandable lumbar cage will develop in the direction of intelligence and personalization. In the future, smart materials may be incorporated to automatically adjust the tightness of the fixation belt according to the tension of the waist muscles, providing more precise pressure support. At the same time, with the help of 3D scanning and customized production technology, each patient is tailored to the most suitable fixation belt for their body shape and lumbar condition, further improving the comfort and effectiveness of the fixation belt, and bringing a better rehabilitation experience for patients with lumbar diseases.
