Compact spring inserter for drug delivery infusion set

摘要

An infusion set (101) includes a base (111) and an inserter (121) removably connected to the base (111). A catheter (134) is movable from a first catheter position disposed substantially entirely within the inserter (121) to a second catheter position' in which a free end of the catheter (134) is disposed externally of the base (111). An introducer needle (142) is located within the catheter (134) and is movable with the catheter (134) between a first introducer needle position disposed substantially entirely within the inserter (121) and a second introducer needle position in which a free end of the introducer needle (142) is disposed externally of the base (111). A spring member (171) moves the catheter (134) from the first to the second catheter position and the introducer needle (142) from the first to the second introducer needle position to facilitate insertion of the catheter (134). The spring member (171) is disposed substantially entirely within the base (111) when the catheter (134) is in the second catheter position.

主权项

1. An infusion set, comprising:
a base; an inserter removably connected to said base and rotatable to initiate operation of said infusion set; a catheter movable from a first catheter position disposed substantially entirely within said inserter to a second catheter position upon rotation of said inserter in which a free end of said catheter is disposed externally of said base; an introducer needle located within said catheter and movable with said catheter between a first introducer needle position disposed substantially entirely within said inserter and a second introducer needle position upon rotation of said inserter in which a free end of said introducer needle is disposed externally of said base; and a spring member 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 spring member being disposed substantially entirely within said base when said catheter is in said second catheter position.