Patent ID: 9393399
Filing Date: 2016-07-19
CPC Classification: A61M

Claim Text:
1. A sealing element for a fluid infusion device comprising a hollow fluid delivery needle, the sealing element comprising: a base section; a retractable body section extending from the base section; a tip section extending from the retractable body section, wherein the retractable body section is between the base section and the tip section; a needle cavity formed in the retractable body section and continuing through the base section to define a needle opening in the base section, the needle cavity sized to receive the hollow fluid delivery needle; a self-sealing slit formed in the tip section to accommodate the hollow fluid delivery needle when the sealing element is in a retracted position; a guide channel in communication with the needle cavity and the self-sealing slit, the guide channel located between an end of the needle cavity and the self-sealing slit, wherein the guide channel leads a tip of the hollow fluid delivery needle into the self-sealing slit during retraction of the sealing element; and a needle seal located in the guide channel and positioned between the self-sealing slit and the needle cavity to form a fluid seal around the hollow fluid delivery needle to fluidly separate the needle cavity from the guide channel.