Apparatus and method for penetration with shaft having a sensor for sensing penetration depth

  • US 8,439,872 B2
  • Filed: 04/26/2010
  • Issued: 05/14/2013
  • Est. Priority Date: 03/30/1998
  • Status: Expired due to Term
First Claim
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1. A tissue penetrating device for sampling body fluid from a patient and for use with a penetrating member, the device comprising:

  • a driver coupled to provide force that moves said penetrating member along a path into the tissue;

    a controller coupled to the driver, the controller configured to control the driver and a motion of the penetrating member to reduce over-penetration by the penetrating member with reduced patient discomfort andwherein the driver is electrically controlled such that when a desired depth has been achieved, the driver is automatically stopped and a depth of penetration optimized so that minimal penetration is used to for drawing blood from a patient with an infliction of a minimal amount of pain and wound size.

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