Abstract: Mandrels and elastomeric pumps for infusion assemblies are provided. For example, a mandrel may comprise a body extending over a length from a first end to an opposing second end; an outer diameter; a bore extending within the body; an inlet port defined near the first end; and a fill port defined between the first and second ends. The inlet and fill ports are in fluid communication with the bore. The outer diameter of the mandrel at a midpoint of the length is different than the outer diameter at each of the first end and the second end. In some embodiments, the outer diameter of the mandrel gradually transitions from a first outer diameter at the first end to a second outer diameter at the second end. An elastomeric pump may include an exemplary mandrel and an inflatable elastomeric bladder disposed on the mandrel.

Abstract: An irrigation function-equipped suction device including a suction device body, a suction path, an irrigation path and a flexible tube. With communication or closing of the suction path and the flexible tube by a first switch mechanism, the irrigation path and the flexible tube are caused to be closed off from each other or to communicate with each other by a second switch mechanism. The first switch mechanism is provided in a first section inside the suction device body, and the second switch mechanism is provided inside the irrigation path between the conversion mechanism and the flexible tube. The closing valve included in the second switch mechanism is disposed at a position on a side opposite to the flexible tube relative to the first switch mechanism and the conversion mechanism.

Abstract: A manually-retractable intravenous infusion needle assembly, including a needle holder, a needle tube, a built-in slidable sheath and a protective casing, where the needle holder includes a tubular portion and a tailstock portion; a rear end of the needle tube is mounted inside the tubular portion; the built-in slidable sheath is through and elongated and has a C-shaped cross-section; the tubular portion is mounted inside the built-in slidable sheath and can slide back and forth; the protective casing is an elongated, through and hollow casing; the built-in slidable sheath is mounted inside the protective casing. A locking structure is provided between the needle holder and the protective casing.

Abstract: An infusion pump includes: infusion-tube pressing parts configured to press a flexible infusion tube; an infusion-tube receiving surface configured to serve as a receiving surface when the infusion-tube pressing parts press the infusion tube; and a restoration device provided between the infusion-tube pressing parts, the restoration device being configured to move together with the infusion-tube pressing parts along the infusion-tube receiving surface and to press two sides of the infusion tube pressed by the infusion-tube pressing parts, wherein the infusion-tube pressing parts is configured to move sequentially in a longitudinal direction of the infusion tube along the infusion-tube receiving surface to deliver a liquid in the infusion tube in one direction while pressing the infusion tube by sandwiching the infusion tube with the infusion-tube receiving surface.

Abstract: A device for infusion of medical fluids is provided. It has an internal reservoir for a fluid to be administered made of a first flexible base material to vary its volume as a function of the quantity of fluid present thereinside; and an outer casing containing the reservoir, having a side wall made of a second elastic base material suitable to make elastically deformable the casing to vary the geometry and internal volume thereof as a function of the volume of the reservoir.

Abstract: A drug delivery device comprising or adapted to receive a drug-filled cartridge, comprising a piston rod adapted to be rotated by a drive member to thereby move the piston rod distally during expelling, dose setting means allowing a user to simultaneously set a dose amount to be expelled, and a releasable locking mechanism adapted to rotationally lock the drive member relative to the housing during dose setting. The device further comprises release means actuatable between a dose setting mode and an expelling mode, wherein the locking mechanism is released when the release means is actuated from a dose setting mode to an expelling mode.

Abstract: Systems and methods for directing a device to a target region within a body cavity are provided. One embodiment includes a first catheter having a handle, an expandable cage, and a lumen therethrough, the expandable cage having a plurality of members that expand to engage a wall of the body cavity, a second catheter within the first catheter lumen having a hub at a distal end, and a plurality of pairs of wires secured at a first end within the handle of the first catheter and secured at a second end to the hub of the second catheter, each pair of wires being movable in conjunction with each other by manipulation of the handle so as to move the hub, a first pair of wires movable to move the hub in a first direction and a second pair of wires movable to move the hub in a second direction.

Abstract: A needle assembly includes an outer cannula having a distal end portion, the distal end portion comprising a sharp bevel facilitating insertion of the needle assembly into a subject. The needle assembly further includes an inner cannula slidably disposed coaxially in the lumen of the outer cannula and movable between an extended position and a retracted position, the inner cannula having a blunt distal end portion extending beyond the sharp bevel of the outer cannula whenever the inner cannula is in the extended position. The needle assembly further includes a bias coupled to the inner cannula in a manner favoring automatic positioning of the inner cannula at the extended position. The needle assembly includes a valve located in fluid communication with the lumen of the inner cannula to allow fluid to exit the subject through the inner cannula, and to prevent ingress of fluid into the subject.

Abstract: An access cannula which includes a dwell tube that serves as an access during treatment. A blocking device that maintains the dwell tube kinked in an idle position. In the idle position, the dwell tube is maintained kinked, preferably at a predetermined kink point that corresponds to a position in which a force exerted by the blocking device upon the dwell tube, the elastic reset force of the dwell tube and, where appropriate, a pressure prevailing in the dwell tube, balance one another.