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This device is known as a disposable-cartridge jet injector (DCJI). [2] The International Standards Organization recommended abandoning the use of the name "jet injector", which is associated with a risk of cross-contamination and rather refer to newer devices as "needle-free injectors". [4]
While the standard needle size for vaccination is 1 inch, it's recommended that women over 200 lbs. and men over 260 lbs. get shots with 1.5-inch needles. (Getty Images) (Nicolae Toma / 500px via ...
Historically, pen needles were manufactured in lengths up to 12.7mm. Over time, pen needles designed for insulin pens have become shorter, and a 4mm long needle is considered sufficient for most people to administer subcutaneously correctly. [23] In 1989, an injector pen form of human growth hormone was licensed in New Zealand. [28]
In people who are overweight, a 1.5-inch needle may be used to ensure the injection is given below the subcutaneous layer of skin, while a 5 ⁄ 8-inch needle may be used for people who weigh under 60 kilograms (130 lb). In any case, the skin does not need to be pinched up before injecting when the appropriate length needle is used.
The most basic reuse prevention device is an "auto-disable" plunger, which once pressed past a certain point will no longer retract. Another common safety feature is an auto-retractable needle, where the needle is spring-loaded and either retracts into the syringe after injection, or into a plastic sheath on the side of the syringe.
Automatic syringes are known since the 1910s, [2] and many spring-loaded devices with needle protectors were patented in the first half of the 20th century, [3] but it was not until 1970s when they became economically feasible to mass-produce (simple syrettes were used instead before).
The carpuject is a syringe device for the administration of injectable fluid medication. It was patented by the Sterling Drug Company , which became the Sterling Winthrop , after World War II. It is designed with a luer-lock device to accept a sterile hypodermic needle or to be linked directly to intravenous tubing line.
A 3.75-cm (1.5-inch), 21-gauge needle is generally used, but obese individuals may require a 6.5-cm (2.5-inch) needle to ensure that the drug is indeed injected intramuscularly and not subcutaneously. [6] Haloperidol decanoate is provided in the form of 50 or 100 mg/mL oil solution of sesame oil and benzyl alcohol in ampoules or pre-filled ...