Patent ID: 8052661

Claim:
A medical product, comprising: an infusion needle having only a single needle cannula, the needle cannula made of a superelastic material that includes a superelastic Ni—Ti alloy, the needle cannula having a distal tip, the needle cannula, while in its unconstrained configuration, having a preformed bend, the needle cannula able to be constrained to a substantially straight configuration, wherein at release of external constraining forces, the needle cannula substantially returns to the unconstrained configuration, the infusion needle further comprising a proximal hub affixed to the needle cannula and including a first lateral projection opposite a second lateral projection, the first lateral projection and the second lateral projection useful for manipulating the needle cannula during use, the infusion needle further comprising a visible indicator proximate to the proximal end of the needle and providing a visible indication of the direction of the preformed bend of the needle cannula; and a coaxial outer needle comprising an outer needle cannula for constraining the needle cannula of the infusion needle in the substantially straight configuration.