Medicinal agent administration system
First Claim
1. 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; and
B. 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.
0 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for intraorgan administration of medicinal agents, such as, cells, growth factors, drugs and other agents under direct visualization, for example using an endoscope, by an apparatus and method which create needle channels within the target organ and deposits by injection, the medicinal agent in high concentrations at designated sites of the target organ. The device consists of a chamber having at least one retractable hollow bore needle; a reservoir for containing an injectable medicinal agent which is in communication with the needle and control means for extending and retracting the needle from and into the chamber and forcing the medicinal agent from the reservoir into the needle and injecting it into a target organ, said control means being suitable for effecting control through an endoscopic tube. Also disclosed are injection needles having side openings therein for enhanced administration of the medicinal agent to the target organ.
21 Citations
14 Claims
-
1. 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; and B. 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification