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Devices and methods for the delivery and injection of therapeutic and diagnostic agents to a target site within a body

  • US 20040210188A1
  • Filed: 12/18/2003
  • Published: 10/21/2004
  • Est. Priority Date: 04/19/2000
  • Status: Abandoned Application
First Claim
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1. A system for injecting an agent into a target site within the body, comprising:

  • an ampule having a reservoir for holding a volume of agent, the reservoir having at least one reservoir orifice;

    a dispersion means distal to the ampule and having at least one dispersion orifice;

    at least one pathway in fluid communication between the at least one reservoir orifice and the at least one dispersion orifice; and

    a propulsion mechanism operatively coupled to the reservoir for propelling the agent from within the reservoir, through the at least one reservoir orifice, the at least one pathway, and the at least one dispersion orifice and into the target site at a pressure sufficient to cause the agent to penetrate the target site without penetrating the target site with the dispersion means;

    wherein;

    the dispersion means comprises a fixture having an atraumatic target-facing surface within which the at least one dispersion orifice is located; and

    the target-facing surface is smooth and substantially planar.

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