N / C 100 5ml needleless plastic syringes, can be used multiple times, suitable for scientific laboratory, metering, watering, adding water, refueling

Product Information

The US Department of Veterans Affairs recognized for the first time that a veteran acquired Hepatitis C from his military jet injections and awarded service-connection for his disability. This invention relates to needleless syringes for use in delivering particles into target tissue of a subject, for example skin or mucosa. In addition, it may be desirable to include a charged lipid and/or detergent in the pharmaceutical compositions.

mm for the first and second convergences respectively, equating to flow cross-sectional area ratios of 1:6.You’ll find these terms used to describe products like pens and other devices sold online to inject fillers at home. the chamber of increased cross-section is thought to provide a discontinuity to the gas flow which leads to the creation within the chamber of a transsonic jet, which jet passes through the chamber and attaches to the walls of the nozzle bore 3 in the region of the second convergence 9 .

Although not shown, the sonic nozzle 4 may be held in place within the central aperture of the main body 1 by cooperating screwthreads, or an interference fit in combination with a downstream shoulder formed by the main body 1. the particles are more uniformly dispersed over the target and the maximum penetration is still 250 ⁇ m. a gas/particle exit nozzle bounding said gas flow path for the acceleration therealong of the drawn in particles entrained in the gas. the convergence 5 ′ causes a reduction in gas pressure, in use, due to the Venturi effect such that there is, in use, a pressure differential across the powder cavity 55 . The upstream end of the nozzle 2 forms a second convergence or constriction 9 to the flow of gas through the main body 1.A method of distributing particles in a flow of gas and a needleless syringe for use in the needleless injection of particles into the skin or mucosa of a vertebrate subject are disclosed.