A delivery assembly includes a console including a vial containment region and a vial engagement mechanism extending from the console within the vial containment region. The engagement mechanism is configured to engage a vial assembly. The delivery assembly further includes a sled assembly removably coupled to the console at the vial containment region and a safety shield removably coupled to the console over the vial containment region such that the vial engagement mechanism and the sled assembly are encapsulated within the safety shield when the safety shield is coupled thereto. The sled assembly, the vial assembly, and the safety shield are configured to inhibit radioactive emissions from within the vial containment region.

A device for administering a fluid, wherein, with the valve opened, fluid that is to be administered can be brought through the feed channel into the cylinder, and wherein a movement of the piston counter to the first direction towards the open dispensing end generates a positive pressure in the cylinder, such that, with the first valve opened, the fluid that is to be administered from the cylinder is dispensed via the open dispensing end, wherein, in order to seal the rear end of the cylinder, a first sealing element is arranged between the piston and the cylinder and a second sealing element is arranged spaced apart from the first sealing element along the first direction. The first sealing element can be a single-acting sealing element, and the second sealing element can be a single-acting or double-acting sealing element.

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.

The present invention is directed to a needle retention assembly, an injectate delivery system, a needle, and a safety mechanism, all of which are for use with an injection device. The needle retention assembly includes a needle offset nut which is configured to removably attach to a needle retention nut and to provide support to the needle. The injectate delivery system includes an injectate holding compartment, a plunger, and a resilient member. The needle has a sidewall defining a longitudinal channel and includes at least two orifices in the sidewall, but does not include an orifice at a tip of the needle. The safety mechanism includes a dual switch that includes two switch elements that are each positioned on opposing sides of a handle of the injection device.

In a needleless syringe according to the present invention, a current is supplied to a solenoid coil to generate a magnetic field so as to move a moving magnetic body and a piston forward, and when the current to the solenoid coil is cut off, an elastic member for the moving magnetic body moves the moving magnetic body backward and an elastic member for the piston moves the piston backward, so that the piston to be injected by pressurizing a drug is configured to reciprocate repeatedly forward and backward and thus, a predetermined drug can be repeatedly injected at high speed. In addition, according to the present invention, time for which the current is applied to the solenoid coil, is adjusted to minimize recoil without adding a recoil offset structure so that the structure is simple and convenience of use can be improved.

Skin can be treated by piercing skin with a plurality of needles of an injection device and ejecting a dose of fluid therethrough. The device can include a housing, a plunger disposed in the housing, a cartridge disposed in the housing, and one or more dosing chambers. The plurality of needles can be coupled to the housing and be in fluid communication with the cartridge. Advancement of the plunger can cause a dose of fluid to be ejected from the plurality of needles.

A jet injection system (10) comprising (i) a microfluidic device (100) for jet ejection and (ii) a laser-based heating system (200), wherein: —the microfluidic device (100) comprises a hosting chamber (110) defined by a chamber wall (120), the hosting chamber (110) having a chamber height he selected from the range of 5-400 μm, a chamber width we selected from the range of 2hc-10hc, and a chamber length l.sub.c defined by a first chamber end (111) and a second chamber end (112), wherein the second chamber end (112) comprises a first chamber opening (131) for jet ejection from the hosting chamber (110), and wherein the hosting chamber (110) is configured to host a liquid (50); —the laser-based heating system (200) is configured to provide laser radiation (201) to one or more of the chamber wall (120) and a liquid (50) in the hosting chamber (110).

A delivery assembly includes a console including a vial containment region and a vial engagement mechanism extending from the console within the vial containment region. The engagement mechanism is configured to engage a vial assembly including a particulate material. The delivery assembly further includes a multi-port needle with a top distal port and bottom proximal port(s), the needle configured to puncture a septum of the vial assembly when the vial assembly is in the locked position, in which the top distal port is at a distance above the particulate material in the vial assembly. The ports are configured to inject a fluid into the vial assembly to mix with the particulate material upon actuation of the vial engagement mechanism in a first direction and to receive a resulting mixed fluid from the vial assembly upon actuation of the vial engagement mechanism in a second opposite direction.

Disclosed is a voice-controlled drug injector, comprising an extension tube, a voice control receiver, and an injection pusher. One end of the extension tube is a liquid drug outlet and is connected to a needle, and the other end of the extension tube is a liquid drug inlet and is connected to one end of the injection pusher so as to form a drug flowing channel. The voice control receiver is connected to the other end of the injection pusher and is configured to receive a voice control instruction to control the injection pusher to perform drug injection. In accordance with the present disclosure, the pumpback and drug injection work requiring the cooperation of two people during conventional neural blockade operation can be completed by means of voice control of a single person, the labor consumption is greatly reduced, the operation time is saved, the neural block efficiency is improved.

A wearable drug delivery device has a needle assembly and a drug vial arranged side-by-side. This arrangement makes the device compact so that it can be easily worn around a user's wrist, for example. When the user triggers the device to inject a dose of medication like epinephrine, in an orchestrated sequence, a first spring drives the needle assembly downward and inserts a needle into the user while connecting the needle assembly to the drug vial. A second spring then delivers the dose from the drug vial through the needle and into the user. Advantageously, the small form factor encourages the user to wear the device and have lifesaving medication at the ready.