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Subcutaneous sensor inserter and method

  • US 10,194,843 B2
  • Filed: 09/02/2015
  • Issued: 02/05/2019
  • Est. Priority Date: 09/03/2014
  • Status: Active Grant
First Claim
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1. An inserter assembly for implanting a sensor subcutaneously into a patient, the assembly comprising:

  • a housing body having a first body end and a second body end;

    a deployment button at least partially disposed in and slidable within the housing body through the first body end, the deployment button being movable between a first position and a second locked position;

    a deployment mechanism slidably disposed within the deployment button and movable between a ready position, an insertion position, and a retracted position, the deployment mechanism having a needle;

    a sensor deployment assembly disposed within the housing body and removably mated with the deployment mechanism, the sensor deployment assembly having a needle bore, a sensor bore and a lumen tube sealingly fixed to the sensor deployment assembly and extending concentric with a deployment axis through the needle bore to a lower lumen end, the lumen tube defining a lumen side opening in communication with the sensor bore that extends transversely from the lumen tube, wherein the needle is disposed within the lumen tube and extends through the lumen tube when the deployment mechanism is in the ready position and in the insertion position;

    a sensor with an electrical contact portion, the sensor partially disposed within the needle and extending through the lumen side opening and sensor bore with the electrical contact portion extending transversely away from the deployment axis; and

    a sensor housing disposed at and removably retained by the second body end of the housing body, the sensor housing having a bottom surface and defining a sensor opening therethrough that is aligned with the deployment axis;

    wherein movement of the deployment button from the first position to the second locked position causes the sensor and the lumen tube to be implanted subcutaneously into the patient along the deployment axis, the needle of the deployment mechanism to retract to the retracted position, the sensor deployment assembly to be fixed within the sensor housing, and the housing body, the deployment button and the deployment mechanism to release from the sensor housing.

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