With the progress of science and technology and the accelerated pace of people's work and life, computers and mobile phones are playing an increasingly important role in people's daily life. It is normal for most people to look down at their computers at work and their mobile phones after work, which also leads to more and more people's cervical curvature straightening, and even symptoms of soreness, pain and even dizziness.

Kenneth, an American doctor, studied the head-down angle and cervical pressure.

After converting the measurement unit in the above figure into kilograms, the corresponding weights of cervical vertebrae are 4.5-5.5kg, 65,438+08kg, 22kg, 27kg, 65,438+05,30,45,60 respectively under normal circumstances. Such a weight can be said to be "unbearable weight of cervical vertebra". Under the cumulative effect, we should not pay attention to the natural curvature that will inevitably lead to the straightening of cervical spine. Therefore, we should pay attention to the correct sitting and standing posture in our daily work and life. In addition, when resting at night, we need a pillow that really conforms to our normal neck curve, so as to really relieve fatigue and improve cervical curvature. We all know that an inappropriate pillow will make you more tired and uncomfortable all night.

At present, 3D printing technology has been applied to the manufacture of customized rehabilitation headrest. First, we use X-ray images and 3D scanning data to design the headrest shape that conforms to the normal curve of individual neck, and then we mesh the model in professional design software? Three-dimensional models that meet the requirements of mechanical properties are obtained, and then TPU powder materials are printed by laser sintering 3D printing technology (SLS), and finally pillowcases made of pure cotton or other fiber materials are put on.

TPU material rehabilitation headrest printed by SL3D in Zhongshan Xing-hai Chen Hospital (printed on the left, pillowcase on the right).

Comparison of user effects before and after printing headrest with SLS 3D

The above picture shows the effect comparison before and after printing the headrest with SL3D. The curvature of the cervical spine was adjusted from 15.7 to 34.7, which reached the normal range and improved the stress of the anterior and posterior ligaments of the cervical spine. Long-term use can slowly correct the cervical curve.

Compared with the traditional latex pillow, SL3D printed rehabilitation headrest has customized properties and is a product specially tailored for users. It can better fit the neck of the user, and at the same time, it can slowly improve the physiological curve of the cervical vertebra of the user, and has certain orthopedic rehabilitation function. Moreover, TPU has high toughness and good resilience, which can better support the neck of users. Long-term use of small compression deformation, more durable. Finally, due to the lattice design, the headrest is more breathable, moisture-proof and antibacterial, which meets the requirements of healthy life.