how this idea got infected in general 3 years ago, the head of the x-ray department or yena tatyana valerievnaent me a photo from the international sympto-small and 3d printed heart we then had a large the problem, the real problem, with the patients we've operated on with a hypertrophic pattern of apathy. we have changed the mitral valve in half of these patients. that's how it would be offered in germany, uh, hmm, to our young man, yes, to a mechanical prosthesis, and we understand that this is not optimal at all. yes at this at this disease it is possible to operate successfully. eh, i know for sure. how much to remove the necessary tissue, while the neutral valve becomes normal or close to normal in its function, you understand and you don’t need to change it, you understand, and uh then for in order to understand how much you need to cut off no more and no less without doing bad, without making, in general, fatal outcomes from well , if there is too much excess tissue, yes, or m-m inexhaustible less i had the idea that such a printed heart each patient can be tried somehow to print and cu