Large length mineralized collagen base caput femoris supporting device

The utility model relates to a large-length mineralized collagen base caput femoris supporting device which is made of mineralized collagen raw materials. The large-length mineralized collagen base caput femoris supporting device is characterized in that the body of the device is in a cylinder shape, the length of the body is larger than 70 mm, a thread with the length being 15-25 mm is arranged at one end of the caput femoris supporting device, the other end of the caput femoris supporting device is provided with a 45-degree chamfer or an arc-shaped chamfer, a through hole is formed in the caput femoris supporting device along a central shaft, and the diameter of the through hole is 30%-60% of the outer diameter of the part, except the thread, of the caput femoris supporting device. The large-length mineralized collagen base caput femoris supporting device is made of the mineralized collagen raw materials, is provided with a microstructure and chemical constitutions consistent to the natural bone tissue of a human body, has good biocompatibility and osteogenic activity, and is degradable, thereby being capable of leading new bones to grow. The large-length mineralized collagen base caput femoris supporting device has the mechanical strength similar to the cortical bone of a human body, and is capable of supplying enough mechanical support for the collapse part of caput femoris. The length larger than 70 mm enables the supporting device to be capable of being directly fixed on the cortical bone on the outer side of the close end of the caput femoris, support is provided for the thanatosis part of the caput femoris, and the supporting device does not need to be matched with other materials or devices for use.