An improved hypodermic syringe including finger-holding surfaces that substantially or completely surround the operator finger and include an interior tapered portion to better engage a finger, which facilitates one-handed use by allowing the same hand that holds the syringe to operate the plunger conveniently to accomplish both the distal (injecting) stroke and the proximal (aspirating) stroke.

A plunger rod is for use with a syringe having a syringe barrel. The plunger includes an elongated body having a proximal end, a distal end opposite the proximal end, a central axis extending between the proximal end and the distal end, a first curved end face, a second curved end face, and a joining portion joining the first curved end face to the second curved end face. Each of the first curved end face, the second curved end face, and the joining portion extends between the proximal end and the distal end. The first curved end face and the second curved end face together are comprised in the circle defined by an outer perimeter of the elongated body.

A part of a device for injecting a liquid product having an end sleeve and a syringe support which is able to move with respect to the end sleeve. The syringe support is designed to bear an injection syringe fitted with a removable protective cap. A deformable ring is kinematically connected to the syringe support. This ring can be deformed elastically between a configuration which is designed to axially immobilize the injection syringe in the syringe support, and a configuration designed to allow the protective cap to pass through the deformable ring.

A sealant syringe assembly includes a first syringe including a plurality of chambers and discharging a first solution which is a mixture of a buffer solution and compound powder; a reaction solution syringe including at least one chamber and discharging a reaction solution capable of reacting with the first solution; and a connector for connecting the first syringe and the reaction solution syringe to mix and discharge the first solution and the reaction solution. The first syringe includes three packing members provided inside the first syringe; a passage provided in the inner circumferential surface of the first syringe; and a plunger for providing a pressure to one of the packing members.

Apparatus and methods for medicament delivery. The apparatus may include, and the methods may involve, a delivery device for delivering a target amount of the medicament from a distal end of the device. The device may include a rod for moving a plunger that discharges the medicament from the distal end. The device may avoid or reduce deformation of the plunger during the discharge. The plunger motion may be stopped by detent that interacts with the rod. The apparatus and the methods may provide an operator indication of progress of stages of operation. The device may feature triggers corresponding to stages of medicament displacement from the device, such as pre-delivery stages, including priming.

A method of treatment may include providing a syringe having medicinal fluid therein for administering to a patient and coupling an attachment portion of an extrusion accessory having a handle and a pawl to a flange portion of the syringe. The pawl may have first and second ends, and be hingedly and rotatably coupled relative to the handle at a first position at the first end and at a second position between the first and second ends. The method may further include applying a force to translate the handle in a direction substantially perpendicular relative to a longitudinal axis of the syringe to cause axial movement of the second end of the pawl. The second end of the pawl may be engaged with a plunger of the syringe and axial movement of the second end of the pawl may drive the plunger forward to extrude the medicinal fluid from the syringe.

An antiseptic medical cap that may include a base, a sidewall, and a chamber configured to receive a proximal end of a medical fluid port having an opening. The antiseptic medical cap, in some instances, may include an insert having a gas-releasing anti-microbial compound and/or include a nitric oxide-releasing system that is configured to be positioned at least partially through the opening of the medical fluid port when the antiseptic medical cap receives the proximal end of the medical fluid port into the chamber.

A syringe with structural features to accomplish one-handed aspiration as well as one-handed injection. The syringe includes one or more breaking points that are configured to break at predetermined locations in response to external forces being applied thereto. To assist in accountability, identification chips and/or codes are included to allow for the traceability of the syringe to potential sources of irresponsible dispensing of medical waste.

A syringe assembly including: (1) a syringe barrel defining a chamber; (2) a plunger mounted in the chamber and moveable with respect to the barrel; and (3) a cap holder assembly containing a cap and an absorbent material removably attached to the syringe.

A digital syringe is used with conventional polymer disposable syringe construction to be practical in the medical environment. Errors associated with the larger volumes of the syringes (which exacerbate minor errors in plunger position) and the flexibility and dimensional variations of the polymer plungers are accommodated by direct measurement of the syringe plunger position rather than indirect measurement of motor position and inference of syringe plunger position. This direct measurement eliminates mechanical tolerances (“stack up”) in the motor, gear train, and lead screw on plunger movement, an effect exacerbated by flexibility of the plunger and changes in syringe resistance and medicament viscosity, for example, with different medicaments or when the syringe is refrigerated. The digital syringe may be combined with the motor unit to provide additional versatility.