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There are also prefilled syringes (disposable syringes marketed with liquid inside). ... (0.5 mL) Syringe Holds maximum: 50 units [15] Numbered in: 10 unit increments ...
They commonly come in 1, 2, 3, and 5 ml which comes with a specific drop size of 10, 20, 25, 35, and 50 μL. [7] The volumes are usually marked on the stem, though the markings are rather crude and are not particularly accurate. [8] A plastic dropper is relatively inexpensive and disposable, so they are often used to avoid cross-contamination.
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.
Researchers developed a new jet injection design by combining the drug reservoir, plunger and nozzle into a single-use disposable cartridge. The cartridge is placed onto the tip of the jet injector and, when activated, a rod pushes the plunger forward. This device is known as a disposable-cartridge jet injector (DCJI). [2]
Air displacement micropipettes are a type of adjustable micropipette that deliver a measured volume of liquid; depending on size, it could be between about 0.1 μL to 1,000 μL (1 mL). These pipettes require disposable tips that come in contact with the fluid. These pipettes operate by piston-driven air displacement. A vacuum is generated by ...
Development of the fully disposable hypodermic needle was spurred on in the 1950s for several reasons. The Korean War created blood shortages and in response disposable, sterile syringes were developed for collecting blood. The widespread immunization against polio during the period required the development of a fully disposable syringe system ...
These pipettes commonly come in 5, 10, 25, and 50 mL volumes. A variety of propipetters [clarification needed] have been developed, both entirely manual and electrically assisted. Originally pipettes were made of soda-lime glass, but currently many are made of borosilicate glass; disposable graduated pipettes are often made of polystyrene.
Injector pens remove some of the complications of syringes by allowing the pen to be "pushed" against the skin at a 90-degree angle (removing the need to inject at a proper angle as is the case with syringes), as well as by replacing a long, thin plunger of a syringe with a simple button which is depressed and held to inject the dose. [2]
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