Abstract: Catheter device (2) for transcutaneous or subcutaneous administration of substances to a patient, comprising an outer catheter (4) provided with one outer catheter lumen (6) with a distal outer catheter outflow opening (8) and an inner catheter (10) provided with at least one inner catheter lumen (12) with at least one distal inner catheter outflow opening (14), said inner catheter is adapted to be detachably arranged in said outer catheter lumen. When the catheter device is adapted to be used for administration of substances to a patient, the inner catheter outflow opening is located proximally said outer catheter outflow opening. The invention also relates to an infusion system including a catheter device and an external pumping device.

Abstract: Implantable drug delivery system comprising a reservoir module provided with a drug reservoir and a drug expelling means arranged to expel a drug liquid from said drug reservoir to a dispenser module that comprises a predetermined number of drug delivery openings for delivering a drug, received from said drug reservoir, to tissue.

Abstract: Implantable drug delivery system comprising a reservoir module provided with a drug reservoir and a drug expelling means arranged to expel a drug from said drug reservoir, and a dispenser module comprising drug delivery means having a predetermined number of drug delivery openings for delivering a drug, received from said drug reservoir, to tissue. The modules are physically separate parts and the reservoir module is provided with a first connecting means and the dispenser module is provided with a second connecting means, wherein, at the time of implantation, the modules are adapted to be connected together by the first and second connecting means.