Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

Abstract: A rotatable hand tool, especially a screwdriver or other rotating tool for screws or nuts. The tool is of the kind having cavities in its handle for storing at least one, or usually several tool bits, which can optionally be attached to a holder attached to and turned by the holder. Such bits can, for example, constitute screwdriver tips, hexagonal socket keys and hexagonal sockets. The handle consists of two main parts, of which one is rotatably enclosed in the other and has cavities arranged in the form of recesses in its periphery, these recesses being accessible by turning the enclosed part so that one of its recesses coincides with an opening in the other part. A limited axial movement between both handle parts and between coacting locking means thereon enables these parts to turn respective to each other in an outer axial position, and is locking them against rotation in an inner axial position of the enclosed part.

Abstract: A sliding joint pliers having a fulcrum pin projecting from one of its limbs and displaceably arranged in a slot in the second of its limbs, has an adjusting screw rotatably mounted on a carrying plate disposed between the limbs. The second limb has a rack along one edge for coaction with the adjusting screw so that the fulcrum pin can be set in a desired position in the slot. The carrying plate is non-rotatably positioned on the fulcrum pin and, together with the second limb and fulcrum pin, is pivotable in relation to the first limb.