Abstract: An elastomeric infusion pump apparatus includes an elastomeric bladder and an axially-variable core positioned within the bladder. The bladder and the core are co-operable between a first state in which the bladder has expanded the core and a second state in which the core stretches the bladder. An apparatus for infusing a pharmaceutically active liquid supplied by an external source includes an elastomeric bladder and an axially-variable core positioned within the bladder. The bladder and the core are co-operable through an infusion cycle during which the bladder axially expands the core as the liquid is forced into the bladder from the external source, the bladder forces the liquid through the core after the liquid has been forced into the bladder, and the core radially stretches the bladder after the bladder has forced the liquid through the core.

Abstract: A shield for use with wound debridement systems. The shield of the present invention includes a radially extending region terminating in a distal opening. The radially extending portion joins a neck having a proximal opening formed therein. A plurality of raised ribs extend into the proximal opening. The raised ribs are sized to create a press fit with a debridement tip inserted therein, with vent apertures being formed between adjacent ribs to prevent the formation of a vacuum and the resultant attachment of the shield to the tissue being debrided. The shield is manufactured from a substantially clear flexible plastic and with a generally flat surface, thereby facilitating assessment of the debridement procedure by a health care professional. Because a flexible plastic is utilized, the shield may be flexed and manipulated to fit the form of the patient and further allows for movement of a debridement tip operably positioned in the shield independent of movement of the shield.