Compact Spring Inserter For Drug Delivery Infusion Set
First Claim
1. An infusion set, comprising:
- a base;
an inserter removably connected to said base;
a catheter movable from a first catheter position disposed substantially entirely within said inserter 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 with said catheter between a first introducer needle position disposed substantially entirely within said inserter and a second introducer needle position 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.
1 Assignment
0 Petitions
Accused Products
Abstract
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.
30 Citations
20 Claims
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1. An infusion set, comprising:
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a base; an inserter removably connected to said base; a catheter movable from a first catheter position disposed substantially entirely within said inserter 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 with said catheter between a first introducer needle position disposed substantially entirely within said inserter and a second introducer needle position 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An infusion set, comprising:
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a base; an inserter removably connected to said base; a catheter hub movable from a first catheter hub position to a second catheter hub position; a catheter connected to said catheter hub and movable from a first catheter position to a second catheter position, said catheter being disposed substantially entirely within said inserter when said catheter hub is in said first catheter hub position and said catheter is in said first catheter position and said catheter having a free disposed externally of said base when said catheter hub is in said second catheter hub position and said catheter is in said second catheter position; an introducer needle located within said catheter and movable with said catheter and said catheter hub from a first introducer needle position to a second introducer needle position, said introducer needle being disposed substantially entirely within said inserter when said introducer needle is in said first introducer needle position and said introducer needle having a free end disposed externally of said base when said introducer needle is in said second introducer needle position; and a spring member for moving said catheter hub, said catheter and said introducer needle, wherein prior to activating said spring member, said catheter hub, said catheter and said introducer needle are in said first catheter hub position, said first catheter position and said first introducer needle position, respectively, and when said spring member is activated, said catheter hub is moved to said second catheter hub position, said catheter is moved to said second catheter position and said introducer needle is moved to said second introducer needle position and then retracted to said first introducer hub position, said spring member being disposed entirely within said base when said catheter hub is in said second catheter hub position. - View Dependent Claims (10, 11, 12, 13, 14, 16)
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15. The infusion set in accordance with claim 15, wherein
a plunger is removably connected to said catheter hub; - and
said introducer needle is rigidly connected to said plunger.
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17. A method of inserting a catheter of an infusion set, comprising the steps of
disposing an infusion set base and an inserter on a skin surface at an injection site while said infusion set base is coupled to said inserter; -
inserting an introducer needle and the catheter through the skin surface by activating a spring member of the inserter; removing the inserter from the infusion set base; and storing the spring member in the infusion set base. - View Dependent Claims (18, 19, 20)
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Specification