Cartridge and inserter for a medical system
Disclosed is a medical system having a cartridge and an inserter. The cartridge includes a housing having an interior volume with a first guide within the interior volume. A cradle is disposed within the interior volume and is configured for mounting a medical appliance. The cradle includes a subcutaneous element and an insertion needle. The insertion needle is configured for being actuated to insert the subcutaneous element into a subject. The inserter includes a second guide configured to mate with the housing of the cartridge, and the first guide and second guide are configured to cooperate to guide the inserter into the interior volume along a guiding path defined by the first guide. The inserter is configured to removably attach to the cradle when guided into the interior volume. An insertion assembly is provided for actuating the insertion needle to insert the subcutaneous element into the subject.
1. A method of using a medical system having a cartridge and an inserter, the cartridge having a housing with an interior volume and a cradle removably disposed in the interior volume, the cradle comprising a subcutaneous element and an insertion needle, the method comprising:
moving at least a portion of the inserter into the interior volume of the housing along a path guided by engagement of a guide of the housing with a corresponding guide of the inserter;
completing the movement of the inserter into the interior volume to thereby cause the inserter to attach to the cradle;
removing the inserter and the cradle from the interior volume; and
operating the inserter to actuate the insertion needle to insert the subcutaneous element into a subject.
2. The method of claim 1 , further comprising:
attaching the cradle to an exterior surface of a subject; and
removing the inserter from the cradle.
3. The method of claim 2 , wherein the step of operating the inserter to actuate the insertion needle comprises releasing a stored energy source to drive the insertion needle into the subject and then withdrawing the insertion needle from the subject.
4. The method of claim 2 , wherein the removing of the inserter from the cradle detaches the inserter from a needle housing.
5. The method of claim 1 , wherein the guide of the housing engages a stored energy source of the inserter during the step of moving the inserter into the interior volume, whereby the stored energy source is primed during the insertion of the inserter into the interior volume of the housing.
6. The method of claim 5 , wherein the stored energy source comprises a sliding member positioned with the guide of the inserter and the moving the inserter into the interior volume causes the sliding member to slide relative to the guide of the inserter, whereby the stored energy source is primed during the insertion of the inserter into the interior volume of the housing.
7. The method of claim 1 , wherein, during the removing of the inserter and the cradle from the interior volume, a backing material is removed from the cradle, thereby exposing an adhesive layer on a skin contact side of the cradle.
8. The method of claim 1 , wherein the step of removing the inserter and the cradle from the interior volume takes place before the step of operating the inserter.
9. The method of claim 1 , wherein the step of removing the inserter and the cradle from the interior volume includes removing the subcutaneous element and the insertion needle therewith.
10. The method of claim 1 , wherein step of removing the inserter and cradle from the interior volume comprises moving the inserter and cradle as a single unit.