Patent ID: 6077251
Filing Date: 2000-06-20
Classification: A61B,A61M

Abstract:
An apparatus for the injection of medicinal agents directly into an organ of the body of a patient comprising:A. a unit for holding a liquid medicinal agent and injection means therefore, said unit comprising:1) a chamber having first and second opposing walls;2) at least one hollow bore hypodermic needle having entrance and exit openings mounted in the chamber, the needle being movable between a first retracted position wherein the needle is fully within the chamber and a second extended position wherein the needle exit opening extends exterior of the chamber;3) the first wall having an opening therein to allow the needle to pass therethrough when moving between the first and second positions;4) access means for opening and closing the opening in the first wall:5) a reservoir attached to the second wall for containing a medicinal agent in liquid form;6) conduits providing liquid communication between the reservoir and the entrance opening of the needle;7) liquid transfer means for moving liquid from the reservoir, through the needles and out of the exit openings of the needles; andB. control means connected to said unit for introducing it to the interior of a patient's body through an opening therein, positioning the device adjacent an organ or tissue to be injected, controlling the access means to open and close the opening in the first wall, moving the needle between the first and second positions and forcing liquid from the reservoir through the conduits into the needle and out of the needle exit.