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

  • US 20100228194A1
  • Filed: 04/26/2010
  • Published: 09/09/2010
  • Est. Priority Date: 03/30/1998
  • Status: Active Grant
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:

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

    a sensing device for use in controlling motion of the penetrating member to penetrate the skin of the patient to a desired depth of penetration that is sufficient to create a wound from which blood flows from the wound and into an interior of the tissue penetrating device for blood analysis, wherein at least a portion of the sensing device is coupled to move with the penetrating member as the penetrating member advances into the tissue;

    a controller electrically coupled to the electrical driver and sensing device, the controller configured to receive a signal from the sensing device to control the electrical driver and a motion of the penetrating member to reduce over-penetration by the penetrating member with reduced patient discomfort.

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