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Tissue penetration device

  • US 20120130343A1
  • Filed: 07/18/2011
  • Published: 05/24/2012
  • Est. Priority Date: 06/12/2001
  • Status: Active Grant
First Claim
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1. A method of injecting an agent into the tissue of a patient at a known predetermined depth, comprising:

  • (a) driving an elongate injection shaft having an outlet port configured to dispense an agent at a controllable time toward the patient'"'"'s target tissue;

    (b) determining a contact point between a distal extremity of the elongate injection shaft and the target tissue;

    (c) advancing the elongate injection shaft into the target tissue from the contact point over a displacement equal to the sum of an elastic recoil displacement value for the target tissue, the distance between a distal extremity of the elongate injection shaft and the outlet port, and the desired tissue depth of injection for agent deposition; and

    (d) injecting the agent.

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