Medical device inserters and processes of inserting and using medical devices

  • US 9,687,183 B2
  • Filed: 03/30/2012
  • Issued: 06/27/2017
  • Est. Priority Date: 03/24/2010
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • positioning a distal end of an inserter on a skin surface; and

    applying a force on a proximal end of the inserter to displace a sharp carrier, a device carrier and an analyte monitoring assembly from a first position within the inserter in spaced relation with the skin surface to a second position adjacent to the skin surface, and to position a portion of an analyte sensor under the skin surface and in contact with interstitial fluid, wherein a spring is positioned within the inserter in a compressed, preloaded state when the sharp carrier, the device carrier and the analyte monitoring assembly are in the first position, and wherein the spring is retained in the compressed, preloaded state without a change in state as the sharp carrier, the device carrier and the analyte monitoring assembly move from the first position to the second position;

    wherein the preloaded spring is biased to advance the sharp carrier from a retracted position with an introducer sharp extending through the device carrier and the analyte monitoring assembly to an extended position in spaced relation with the device carrier, wherein a plurality of carrier arms retain the sharp carrier in the retracted position, and wherein the sharp carrier is disengaged from the plurality of carrier arms permitting expansion of the preloaded spring to advance the sharp carrier to the extended position and withdraw the introducer sharp from the analyte monitoring assembly and the skin surface when the sharp carrier reaches the second position.

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