With the development of assisted reproductive technologies (ART), contracts covering cryopreservation and the storage of germ cells, as well reproductive organ tissues and embryos are beginning to find wide practical application. Parties to such contracts are faced with questions not currently set out in the current legislation of the Russian Federation. This aim of this article is to identify legal models capable of resolving the most pressing issues arising from these contracts. It is proposed that the following types of biomaterial be reviewed as a continuation of the human body: reproductive biomaterial extracted from the human body in the aims of subsequent reintroduction, and capable of fulfilling that biological function for which it is designated; as well as material aimed at restoration or improvement of organ function. Any intervention upon such biomaterial should be qualified as intervention upon human health. Thus any medical organization found to be in violation of its obligation to preserve health must compensate for any damage caused to a patient’s reproductive health - as set out in the rules of chapter 59 of the Civil Code of the Russian Federation. The author suggests the notion of “abandoned biomaterial” be incorporated in Russian legislation. “Abandoned biomaterial” presupposes the termination of the rights of a person to this biomaterial and enables the medical organization, while ensuring its preservation, to utilize such biomaterial or to use it for research purposes. This would ensure the protection of human rights and legitimate the interests of the contracting party in the event of any violation of the terms of the contract by the client. The author also proposes legal models for the resolution of conflicts related to the plurality of contractual parties, as well as to postmortem human reproduction.