Surgeon  Sergey  Gorshkov  used computer tomography and 3D modeling to implant Ryzhik with four artificial titanium claws. The  operation  

achieved  good results.  The  prosthesis did  not break, and the skin grew together with the bone, attached to the titanium metal. The prosthesis in 

the body is spongy, and bone tissue can grow in it.

      The main application area of bio-3D printing technology is medical and health care, such as printing artificial tissues for drug testing, and even 

printing  organs  that  can be directly transplanted. 3D printing technology can also be applied to animals, giving them a chance to rebirth. When a 

3D printed prosthesis is used, it will give a deformed, damaged or sick animal a second life.

       3D printing has been constantly changing the face of prosthesis manufacturing. This technology reduces the production cost of the prosthesis 

and makes it easier to obtain. It also realizes 100% customization, and the use of flexible materials makes the prosthesis more comfortable to wear. 

In addition, the technology can adjust the prosthesis well to adapt it to the growing body.

        Not only that,  3D printing can also print to replace animal products,  so  as to achieve the purpose of protecting animals. For example, the 3D 

printing company in New Jersey, USA,  announced that it  has successfully  developed 3D printed leather  without requiring animals to provide raw 

materials. The  current  valuation of the global  leather  market is about 100  billion  US dollars, and the main products are luxury handbags, shoes, 

furniture and so on.