Abstract: A safety syringe 10 includes a generally tubular body 14 having a needle end 18 and plunger end 22, needle 38 and retractable needle seat 30, two-way valve 36, plunger 42, stopper 62, piston 52, and rear plunger seal 44. During use, the plunger may be moved to create a vacuum in the plunger. The user then moves the plunger toward the needle end, pressurizing a vial, then pulls backward to a selected position corresponding to the desired volume of fluid to be withdrawn. At the conclusion of the injection stroke, the piston is disengaged from the plunger. The vacuum within the plunger retracts the needle safely into the tubular body.

Abstract: A skin punch device comprises a gripping handle with a center passage, through which a reciprocating plunger extends. A disposable cutting tip is releasably connected to the handle. The cutting tip has a tip cavity with a base from which extends a biopsy chamber that terminates at cutting edges. The base has an aperture through which a slidable push-rod extends. The push-rod has a disc end located in the biopsy chamber. The plunger and push-rod are in axial alignment, so that when the plunger is moved, the push-rod will also move in tandem. Movement of the push-rod will simultaneously cause the disc end to pass through the biopsy chamber and eject a cut tissue sample lodged in the chamber. Further movement of the plunger will result in engagement with the tip cavity and dislodgement of the entire disposable cutting tip from the end of the gripping handle.

Abstract: A safety syringe 10 includes a generally tubular body 14 having a needle end 18 and plunger end 22, needle 38 and retractable needle seat 30, two-way valve 36, plunger 42, stopper 62, piston 52, and rear plunger seal 44. During use, the plunger may be moved to create a vacuum in the plunger. The user then moves the plunger toward the needle end, pressurizing a vial, then pulls backward to a selected position corresponding to the desired volume of fluid to be withdrawn. At the conclusion of the injection stroke, the piston is disengaged from the plunger. The vacuum within the plunger retracts the needle safely into the tubular body.

Abstract: The present invention discloses a method, apparatus and system for electromechanical liquid dispensing. The system includes a bottle for holding liquid to be dispensed, the bottle having an inlet port and an outlet port, a one-way outlet valve on the outlet port through which liquid is dispensed from the bottle, and an electronic control system for controlling dispensement of the liquid from the outlet port such that a controlled quantity of liquid is dispensed.

Abstract: The present invention discloses a method, apparatus and system for electromechanical liquid dispensing. The system includes a bottle for holding liquid to be dispensed, the bottle having an inlet port and an outlet port, a one-way outlet valve on the outlet port through which liquid is dispensed from the bottle, and an electronic control system for controlling dispensement of the liquid from the outlet port such that a controlled quantity of liquid is dispensed.

Abstract: A safety syringe 10 includes a generally tubular body 14 having a needle end 18 and plunger end 22, needle 38 and retractable needle seat 30, two-way valve 36, plunger 42, stopper 62, and rear plunger seal 44. The plunger may be selectively engageable with both the stopper and the retractable needle seat. During use, the plunger may be moved to capture the stopper. The user then moves the plunger and the captured stopper toward the needle end to a displaced position corresponding to the desired volume of fluid to be withdrawn. A vacuum is created between the stopper and rear plunger seal, and helps to draw fluid into the tubular body. At the conclusion of the patient injection stroke, the plunger engages the needle seat, and the vacuum between the stopper and rear plunger seal retracts the needle safely into the tubular body. The two-way valve controls flow into and out of the body during use.

Abstract: The blood sampling assembly includes a retractable double-ended needle so that a vial may be passed through an opposed end of the needle to obtain a blood sample. The assembly includes a hollow cylinder including circumferentially spaced seat tabs which allow a needle seat and the needle supported thereon to be released upon rotation of tube with respect to hollow cylinder. The extractor assembly includes a stopper for maintaining a vacuum within tube to withdraw the needle to a retracted position within the tube upon rotation of the tube, the end cap, and the stopper retainer. A stopper tab positioner rotationally connects the stopper to the cylinder.

Abstract: The blood sampling assembly includes a retractable double-ended needle 26 so that a vial may be passed through an opposed end 30 of the needle to obtain a blood sample. The assembly includes a hollow cylinder 10 including circumferentially spaced seat tabs 20 which allow a needle seat 40 and the needle 26 supported thereon to be released upon rotation of tube 62 with respect to hollow cylinder 10. The extractor assembly includes a stopper 66 for maintaining a vacuum within tube 62 to withdraw the needle to a retracted position within the tube 62 upon rotation of the tube 62, the end cap 92, and the stopper retainer 70. A stopper tab positioner 84 rotationally connects the stopper 66 to the cylinder 10.

Abstract: A hose sprayer assembly in accordance with the present invention includes a trigger body which is rotatably mounted within a housing. The housing is formed with an inlet orifice, an outlet aperture and an aspiration orifice, and further includes a deflector plate which is fixed to the outer surface of the housing proximate the outlet aperture. The trigger body includes a inlet port, an outlet port in fluid communication with the inlet port, and an aspiration port in fluid communication with the outlet port. Selective alignment of the trigger body places the inlet port and outlet port in fluid communication with the respective inlet orifice and outlet aperture of the housing. This yields a water only stream out the housing outlet aperture when water is forced through the assembly. Similarly, the body can be aligned to place the aspiration port in fluid communication with the aspiration orifice of the housing.

Abstract: A disposable syringe assembly 10 including a cylinder body 12, a needle assembly 14, a piston assembly 16, a rear seal assembly 18, a hollow shaft 20, and a valve assembly having a valve port 61 and valve seals 49. The needle assembly may be releasably engaged with the cylinder body. The body and the piston assembly moveable within the body may define each of a fluid chamber 74 and an annular chamber 28. As fluid is drawn into the fluid chamber by movement of the piston assembly, air may be displaced from the annular chamber through the valve assembly. As fluid is discharged from the fluid chamber, the valve assembly may be closed and a vacuum created in the annular chamber. A valve positioner may control connector connectivity and valve port position. Near the end of the fluid discharge piston stroke, a connector 88 engaged with either the shaft of with the piston assembly may engage selectively engage a mating connector on the needle assembly. The needle assembly may be disengaged from the body.

Abstract: A hose sprayer assembly in accordance with the present invention includes a trigger body which is rotatably mounted within a housing. The housing is formed with an inlet orifice, an outlet aperture and an aspiration orifice, and further includes a deflector plate which is fixed to the outer surface of the housing proximate the outlet aperture. The trigger body includes a inlet port, an outlet port in fluid communication with the inlet port, and an aspiration port in fluid communication with the outlet port. Selective alignment of the trigger body places the inlet port and outlet port in fluid communication with the respective inlet orifice and outlet aperture of the housing. This yields a water only stream out the housing outlet aperture when water is forced through the assembly. Similarly, the body can be aligned to place the aspiration port in fluid communication with the aspiration orifice of the housing.

Abstract: An expandable modular data storage system including a plurality of data storage devices, a plurality of substantially identical, vertically stackable storage device housings adapted to slidably receive a data storage device, and mechanical connection elements for releasably connecting the top of one storage device housing to the bottom of a storage device housing stacked thereon.