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Tissue penetrating device and methods for using same

  • US 7,226,450 B2
  • Filed: 10/08/2002
  • Issued: 06/05/2007
  • Est. Priority Date: 03/02/1998
  • Status: Expired due to Term
First Claim
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1. An apparatus comprising:

  • a. a tissue penetrator disposed in a distal portion of the apparatus;

    b. a solenoid for controlling penetrator penetration speed and depth;

    c. a motor adapted to rotate the solenoid and the penetrator,d. a power supply and associated circuitry for supplying electrical power to the solenoid;

    e. a switch for starting and stopping the solenoid;

    f. a housing surrounding the penetrator, the solenoid and the power supply; and

    g. a disposable, biased retractable protector having a septum at its distal end and a bias member,where the protector is detachably connected to a distal end of the apparatus and protects a tip of the penetrator and where electric power supplied to the solenoid allows the penetrator to penetrate a tissue site at a controlled rate and to a controlled depth.

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