Pull-Strap Inflatable Hip Model for Concave-Convex Contours

The inflatable model is divided into multiple independent chambers (first chamber, second chamber, third chamber) separated by partition walls. Each chamber can be inflated independently to control the formation of specific body contours, allowing precise simulation of the human body shape while using cost-effective film materials.

Different regions of the inflatable model are designed with different properties: the first chamber forms the upper body with a first partition wall, the second chamber forms the lower body with a second partition wall, and the third chamber forms the hip region. Each region can be optimized for its specific anatomical requirements, enabling accurate simulation of complex body curves at reasonable manufacturing cost.

The hip region is segmented into multiple chambers (second chamber for lower body, third chamber for hip) separated by partition walls. This segmentation allows independent control of gas pressure in each chamber to precisely form the complex concave-convex curves of the human hip while maintaining cost-effectiveness.

The model utilizes changes in gas pressure parameters within each chamber to control the expansion and shaping of the film material. By adjusting the pressure distribution across different chambers, the complex three-dimensional concave-convex surface of the human hip can be accurately simulated using flexible film materials.

The invention creates a copy of the hard plastic model's functionality using an inflatable film structure. By using multiple chambers that can be inflated to specific pressures, the film model replicates the ability to form precise three-dimensional body contours without requiring expensive hard plastic materials, thus achieving appearance accuracy at lower manufacturing cost.

The model transitions from a static hard plastic structure to a dynamic inflatable structure where shape is controlled by gas pressure parameters. This allows the film material to conform to the desired human body shape through pressure control, achieving the same visual accuracy as hard plastic models but with significantly reduced manufacturing costs.