Abstract: A chemical reaction system is disclosed for use in a device for delivering a therapeutic fluid comprising a liquid base and a polymeric acid. A reaction rate of the chemical reaction system is capable of being adjusted by adjusting at least one of surface area-to-volume ratio, acid concentration, and cross-linking of the polymeric acid.

Abstract: The present disclosure relates to a tube management device for an infusion set that includes a holding member attachable to the patient and which defines a holding chamber for the tube. The tube may be engaged and disengaged with the device while the lube is operably connected to convey medication. The device may also allow a) the length of flexible tube controlled by the device and b) the position of the final exit of the tube from the holding member relative to the initial entry of the tube into the holding member to both be selectively adjusted. In some embodiments, tire holding chamber is defined by a plurality of channels which may be either non-intersecting or intersecting channels.