US Patent 8083726 Encapsulating cells and lumen

A method including combining a cellular component with a viability enhancer material wherein the combination will inhibit an interaction between the cellular component and a delivery device; and delivering the cellular component through the delivery device. An apparatus including a delivery cannula having dimensions suitable for percutaneous delivery and a lumen therethrough, wherein a portion of a luminal surface of the cannula includes a coating that is amenable to a cellular component delivered through the delivery cannula. A method including percutaneously introducing a delivery cannula into a blood vessel; advancing a distal portion of the delivery cannula to a treatment site; and delivering a cellular component through a lumen of the delivery cannula, wherein a portion of a luminal surface of the cannula includes a coating that is amenable to a cellular component delivered through the delivery cannula.