Posts Tagged: "organ transplant"

Lifenet’s patent is for plasticized soft tissue grafts used for transplantation in humans. The specification discloses that plasticizers can be removed before implantation, although they need not be, as claim 1 discloses three options for the implanting technician, one option being direct implantation without removing plasticizers. LifeCell’s accused grafts are preserved in a solution prior to implantation, and it is undisputed that significant amounts of plasticizers are removed during this soaking process. During claim construction, the parties disputed the meaning of the term “non-removal.” The district court concluded that construction of this term was unnecessary because it was easily understood by a person of ordinary skill in the art to have its plain meaning.

In the middle of February, the scientific journal Nature Biotechnology published a paper from a team of researchers at Wake Forest University which reported a breakthrough in creating transplantable human organs with the use of an integrated tissue-organ printer. The Wake Forest breakthrough provides 3D printed tissues with a biodegradable material to serve as a temporary framework for cells as they take hold in a host body; the tissue material also enables oxygen and nutrients to flow into the printed organ more easily. Still, issues in tissue complexity for certain organs remain, although we are closer than ever to the world’s first 3D printed liver thanks in part to work performed by engineers at the University of California, San Diego.