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

Product Information

the cassette body 50 can be made integral with the syringe main body 1 so that the holes 53 are aligned with the particle inlet passage 10 and the atmosphere respectively. When used with a payload of 1 mg of polystyrene spheres, it produced a crater in the centre of the 3% agar gel target. a particle inlet in the form of a particle inlet passage 10 is provided extending radially through the main body 1 .

It is enough that the gas flow path has started to converge at the position where the particle inlet passage 10 is located such that there is a reduction in pressure sufficient to draw in the particles. the gas source may advantageously take the form of a single shot gas canister, preferably a helium gas canister. Some beauty bars, spas, and other businesses that provide beauty services offer needle-free or needle-less fillers. is a reconstruction of a diametral 10 mm wide slice through the agar target, showing the uniformity of distribution and penetration of the particles across the full width of the target. While this may sound like an easy and affordable way to get fillers, remember that it can lead to a serious injury.the surface area of such a filter could clearly be chosen to match the gas velocity therethrough that will be encountered in use. the silencer consists of a first passage 80 which the gas upon which rebounding from the target plane passes along. This reduced pressure can then be used to draw in a payload of particles from the particle source 11 (not shown in FIG. the main body 1 of the syringe has a central aperture extending therethrough to form a lumen which bounds the gas flow path through the syringe, into the downstream end of which is fitted a nozzle 2.

the major components of the needleless syringe may for example be made of metal or of engineering plastics materials. Marshall Lockhart, an engineer, filed a patent for his idea of a jet injector after learning of Sutermeister's invention. A safety test by Kelly and colleagues (2008) [6] found a PCNFI device failed to prevent contamination. Examples of normally employed “excipients,” include pharmaceutical grades of dextrose, sucrose, lactose, trehalose, mannitol, sorbitol, inositol, dextran, starch, cellulose, sodium or calcium phosphates, calcium sulfate, citric acid, tartaric acid, glycine, high molecular weight polyethylene glycols (PEG), and combinations thereof. September 1966: The Star Trek series started to use its own jet injector device under the name " hypospray".

comprises an elongate tubular converging-diverging nozzle having a rupturable membrane initially closing the passage through the nozzle and arranged substantially adjacent to the upstream end of the nozzle. to 18f show a second way of sealing a metered quantity of powder in a sealed container until it is ready for use.

shows the improved footprint achieved when this device was operated at conditions corresponding to those of FIG. the method and mechanism of operation of the fifth embodiment is similar to that of the first to fourth embodiments and will not be further described here. the Venturi effect means that the position 73 of lower cross-sectional area will have a reduced pressure as compared to the position 72 of higher cross-sectional area. this pressure difference By modifying this pressure difference, the time at which the particles are drawn into the flow can be controlled.shows a second embodiment of a syringe in which the nozzle, instead of having a substantially parallel-sided bore, has a distinct divergence. the particles can thus be delivered from the needleless syringe at very high velocities which are readily obtainable upon the bursting of the rupturable membrane. the particle payload can be introduced at any point in the gas flow where the pressure is low enough to cause the drawing-in effect to take place.

mm diameter sonic throat and a 3 mm diameter upstream exit nozzle parallel section and using a 5 ml, 40 bar helium cannister gave the footprint and penetration results shown in FIG.

Even if the product is trending on social media, remember that these devices can cause serious injury.