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Apparatus and Method for Limiting Access to a Drug Pump Septum Disclosure Number: IPCOM000019702D
Publication Date: 2003-Sep-25

Publishing Venue

The Prior Art Database


A keying system is used to permit entry of a needle into one septum (opening) in a drug delivery catheter and prevent entry of the needle in another septum (opening) of a drug reservoir. The drug delivery catheter and drug reservoir are parts of a medical device such as a drug infusion pump. Specific needles are "keyed" to a counterpart septum so that each needle can only be inserted into its counterpart septum. Each septum may have notches or shapes in the inner wall and each counterpart needle will have a longitudinal matching groove or grooves that allow entry of the needle into its counterpart septum. This keying system prevents accidentally delivery of fluids into a wrong fluid chamber or delivery line.