Lateral needle-less injection apparatus and method

摘要

A device and method for delivering and injecting fluid into heart tissue utilizing laterally directed injection ports to increase injectate (fluid) retention in the heart tissue. The catheter includes a shaft having an infusion lumen extending therethrough, wherein the distal end of the shaft includes a penetrating member having one or more injection ports. The penetrating member penetrates the heart tissue in a first direction, and the injection port or ports direct fluid in a second direction different from the first direction. By injecting the fluid or fluid in a direction different than the penetration direction, fluid leakage from the injection site is reduced and a greater volume of tissue is treated for a single primary injection.