SELF-CONTAINED SPRING INSERTER FOR DRUG DELIVERY INFUSION SET

摘要

An infusion set includes a base (221) and a flexible catheter (242) movable from a first catheter position disposed substantially entirely within the base (221) to a second catheter position in which a free end of the catheter (242) is disposed externally of the base (221). An introducer needle (234) is located within the catheter (242) and is movable between a first introducer needle position disposed substantially entirely within the base (221) and a second introducer needle position in which a free end of the introducer needle (234) is disposed externally of the base (221). A spring (281) is activated to move the catheter (242) from the first to the second catheter position and the introducer needle (234) from the first to the second introducer needle position to facilitate insertion of the catheter (242). The introducer needle (234) is thereafter moved by the spring (281) back to the first introducer needle position to store the introducer needle (234) within the base (221) with the free end of the catheter (242) remaining disposed externally of the base (221).

主权项

1. An infusion set, comprising:
a base; a flexible catheter movable from a first catheter position disposed substantially entirely within said base to a second catheter position in which a free end of said catheter is disposed externally of said base; an introducer needle located within said catheter and movable between a first introducer needle position disposed substantially entirely within said base and a second introducer needle position in which a free end of said introducer needle is disposed externally of said base; and a spring for moving said catheter from said first to said second catheter position and said introducer needle from said first to said second introducer needle position to facilitate insertion of said catheter, said introducer needle thereafter being moved by said spring back to said first introducer needle position to store said introducer needle within said base with said free end of said catheter remaining disposed externally of said base.