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1951: Rothauser produced the first injection-moulded syringes made of polypropylene, a plastic that can be heat-sterilised. Millions were made for Australian and export markets. 1956: New Zealand pharmacist and inventor Colin Murdoch was granted New Zealand and Australian patents for a disposable plastic syringe.
By 2008, all-plastic needles were in production and in limited use. One version was made of Vectra (plastic) aromatic liquid crystal polymer tapered from 1.2 mm at the hub to 0.72 mm at the tip (equivalent to 22 gauge metal needle), with an ID/OD ratio of 70%. [16]
Vial of vaccine and syringe Examples of modern flat-bottomed plastic vials Sterile single-use vial of eye drops. A vial (also known as a phial or flacon) is a small glass or plastic vessel or bottle, often used to store medication in the form of liquids, powders, or capsules.
The FDA in 2023 recommended against the use of some syringes originating from China as it investigated reports of leaks, breakages and other quality problems with such products. Merit said it is ...
Initially, they were made of glass. In 1961 plastic disposable syringes became available. [8] The advent of the first low dead space syringe occurred with the creation of 1-ml syringes designed specifically for the administration of insulin.
Pipetting syringes are hand-held devices that combine the functions of volumetric (bulb) pipettes, graduated pipettes, and burettes. They are calibrated to ISO volumetric A grade standards. A glass or plastic pipette tube is used with a thumb-operated piston and PTFE seal which slides within the pipette in a positive displacement operation ...
A spore print is made by placing the spore-producing surface flat on a sheet of dark and white paper or on a sheet of clear, stiff plastic, which facilitates moving the spore print to a darker or lighter surface for improved contrast; for example, it is easier to determine whether the spore print is pure white or, rather, very slightly pigmented.
Celluloids are a class of materials produced by mixing nitrocellulose and camphor, often with added dyes and other agents.Once much more common for its use as photographic film before the advent of safer methods, celluloid's common present-day uses are for manufacturing table tennis balls, musical instruments, combs, office equipment, fountain pen bodies, and guitar picks.