Patent ID: 8439867
Filing Date: 2013-05-14
Classification: A61M

Abstract:
1. An injection guidance system for delivering a pharmaceutical in the treatment of a human or animal organ, the system comprising: (a) a catheter having at least one peripheral lumen extending longitudinally therein; (b) at least one injection needle operatively extended through the at least one peripheral lumen between a retracted position and an extended position; (c) an inflatable member having an inflatable membrane with an interior surface and an exterior surface, the inflatable member being disposed from the exterior of the catheter that is selectively expanded by means of a gas or liquid fluid from a collapsed configuration to a three-dimensionally expanded configuration extended from the catheter, such inflatable member having at least one aperture within its surface wall extending from the exterior surface of the membrane to its interior surface, so as to communicate with the interior of the inflatable member for passage of the injection needle therethrough; (d) wherein the catheter is inserted into the organ with the inflatable member in its collapsed configuration with the injection needle in its retracted position; and (e) wherein, once inside the organ, the inflatable membrane is expanded by means of the gas or liquid fluid to its three-dimensional expanded configuration to bring its surface wall proximate to the organ tissue wall, and automatically extend the injection needle during the expansion of the inflatable member from its collapsed configuration to its expanded configuration to penetrate the organ tissue wall at a predetermined location, the aperture or the injection needle positioned inside the aperture coming into contact with the gas or liquid fluid.