An injector device and method for use, and particularly a veterinary injector, is disclosed herein. One aspect of the present technology, for example, is directed toward a veterinary injector including a flexible container configured to house a medicament, a plunger configured to be slidably received within a lumen of the container, a needle, and a stabilizer at the distal portion of the container and configured to be grasped by a user. The stabilizer can include a first flap extending away from the hub in a first direction, a second flap extending away from the hub in a second direction, and a third flap extending away from the hub in a third direction.

Syringes and methods of using are described which protect materials within the syringe barrel cavity from contaminants and photo-chemical degradation. A syringe is provided having an inspection window for viewing medications or other materials within the cavity of a syringe barrel. The syringe barrel and other syringe components may be colored, opaque, darkened, amber, tinted; or the syringe barrel may have applied thereto polarizing filters; or materials having light polarizing properties can be used to manufacture the syringe barrel and other syringe components of the syringe to cancel particular components of light.

A closed-system grinding syringe (10, 110) is provided for liquefying and delivering a solid dosage form (20), including a barrel (22), a fluid port (30) disposed on a bottom wall (28) of the barrel (22), and a plunger (32). A head (36) of the plunger (32) is insertable into and moveable within the barrel (22) such that (a) a portion of the barrel (22) defines a closed-system syringe chamber (46) between the bottom barrel wall (28) and a lower surface (64) of the plunger head (36), and (b) a plunger-head annular seal (42) forms a fluid-tight seal between an outer surface (44) of the plunger head (36) and a cylindrical inner surface (26) of the barrel (22). A solid-dosage-form support disc (60, 360) is disposed below a bottom plunger wall (38) so as to define a grinding compartment (62) between the lower surface (64) of the bottom plunger wall (38) and an upper surface (66) of the solid-dosage-form support disc (60, 360), and is shaped so as to define a plurality of holes (68, 368) through the solid-dosage-form support disc (60, 360).

A safety syringe comprising a barrel having an opening at an end thereof and a bung positioned in the barrel and creating a volume between the opening and the bung. The safety syringe also comprises a handle portion secured to the barrel and a syringe plunger slidably engaged with the handle portion and moveable within the barrel on an inward stroke to drive the bung forwards within the barrel to cause a substance within the volume to be expelled from the opening. The safety syringe further comprises a rotation mechanism configured to rotate the syringe plunger within the barrel at a point during the inward stroke when the syringe plunger is in contact with the bung, such that a rotational force is applied to the barrel and a brake connected to the handle portion and configured to provide a frictional force to resist the rotational force applied to the barrel.

A medical injection system comprising: a syringe provided with a barrel, a stopper and an injection needle; a plunger rod which engages with the stopper; an injection lock preventing relative movement of the plunger rod with respect to the barrel; and a needle guard comprising a trigger portion and configured to slidably engage the barrel so as to define a first position covering the injection needle and a second position not covering a predetermined portion of the injection needle. The trigger portion is adapted to disengage the injection lock from the plunger rod when the needle guard moves from the first position to the second position.

A syringe holder includes a syringe barrel holder having a depression which is configured to receive and engage finger tabs of a syringe and has a bottom depression surface engageable by the finger tabs. A barrel opening receives a barrel of the syringe, and includes a central longitudinal axis, a shaft channel and a set screw channel having a screw axis passing through the shaft channel. A dosing shaft extends from a first end to a second end and includes a plurality of notches between the ends. The dosing shaft is located and slideable within the shaft channel. A plunger cap includes a plunger receptacle and attaches to a first end of the dosing shaft. A socket set screw is located and engaged within the set screw channel and has a resilient end engageable with the notches of the dosing shaft.

A syringe includes a barrel, a plunger, and a sealing member creating a seal between the plunger and the barrel. The barrel includes a first portion with a first inner diameter and a second portion with a second inner diameter that is larger than the first inner diameter. The sealing member engages the first portion of the barrel to give rise to a first contact pressure when the barrel is filled with product. The first contact pressure is sufficient to maintain a gas-tight seal over the expected temperature ranges −25° C. to 40° C. A first force is applied to the plunger to overcome the first contact pressure and move the plunger out of the first portion and into the second portion to dispense product. The sealing member engages the second portion of the barrel to give rise to a second contact pressure that is lower than the first contact pressure. A second force lower than the first force is sufficient to overcome the second contact pressure and move the plunger in the second portion to continue dispensing product. The syringe may include a restraining element for accommodating expansion of the product during freezing.

An administration device for in particular intravitreal administration of a fluid, the administration device having a preferably pre-filled syringe and an actuation mechanism for actuating the syringe. The administration device preferably includes a priming device, in particular in addition to the actuation mechanism. It is preferably prevented that the priming device be advanced beyond a defined end position. The syringe can preferably be moved within a housing of the administration device and/or positioned completely inside the housing.

A drug self-delivery device comprising a body portion containing a drug vial and a needle assembly, where the body portion is slidably engaged to a trigger portion. When engaged by a user pressing the trigger portion against the user's flesh, the needle assembly relative to the drug vial so as to align a needle port with an integral drug delivery port connected to the drug vial thereby allowing fluid flow of medication through the needle. Seals engaged by a penetration spring prevent loss of medication and prevent the need for direct connection between the needle assembly and the drug vial.

A drug delivery system is provided that has an adjustable dose mechanism allowing setting and locking the dose then administration of the set dose. A method for administering a medicament using the drug delivery system is also provided.