Tissue penetration device
AssigneeSanofi-Aventis Deutschland GmbH
InventorsDominique M. Freeman, Don Alden
Life of this patent
Estimating the term…
Abstract
An agent injection device is provided that is capable of injecting an agent to a known predetermined tissue depth. An injection member has an elongate injection shaft with an outlet port configured to dispense an agent at a controllable time. A controllable driver is coupled to the elongate injection shaft and is configured to drive the injection member into target tissue. A velocity control system is in communication with the controllable driver and is configured to control the velocity of the elongate injection shaft.
Claims4
A method of injecting an agent into the tissue of a patient at a known predetermined depth, comprising:
- driving an elongate injection shaft using an electronic driver, the elongated injection shaft having an outlet port configured to dispense an agent at a controllable time toward the patient's target tissue;
- providing programmable control of the electronic driver for a desired velocity of the injection shaft;
- 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;
- injecting the agent;
- and
- accurately delivering the agent to a specific depth within a skin or tissue layer and provide for localized agent delivery;
- and further comprising:
- using a plurality of agent injection modules;
- and providing a series of metered doses of the agent.
Dependencies are inferred from the claim text.