Insulin pump dermal infusion set having partially integrated mechanized cannula insertion with disposable activation portion

摘要

An infusion set has a partially integrated ballistic inserter that can insert a needle at a controlled rate of speed to a depth to deliver content to the upper 3 mm of skin surface, and a skin-securing adhesive layer to secure the skin surface at the insertion site such that the inserter that can insert a needle with a reduced risk of tenting of the skin surface. A removable turnkey or pushable handle can be provided to release a driving spring of the ballistic inserter to insert a needle at a controlled rate of speed, of 3.3 ft/sec. (1.0 m/sec.) up to and including those greater than 10 ft/sec. (3.0 m/sec.), then release from the set for disposal. The infusion set can further include an extendable interface ring that retracts when the inserter is removed from the infusion set.

主权项

1. An infusion device that can insert an infusion needle at a controlled rate of speed to a depth to deliver medicament to the upper 3 mm of skin surface, comprising:
an infusion device base, comprising at least one adhesive layer for releasably securing said infusion device base with said skin surface; and an inserter, wherein said inserter comprises an activation subassembly releasably secured to said infusion device base that is configured to release at least a user contact element and a driving spring from said infusion device base upon completed activation, and leave at least a needle with said infusion device base upon completed activation, wherein said user contact element comprises a turnkey, releasably coupled with said infusion device base and configured to release said driving spring of said inserter to insert said needle when turned relative to said skin surface, and further configured to release from said infusion device base when turned further relative to said skin surface.