Abstract
Insulin delivery systems that are currently available include syringes, infusion pumps, jet injectors and pens. Needle free injection systems are novel ways to introduce various medicines into patients without piercing the skin with a conventional needle. Some of technologies are Biojector 2000, Cool click, Serojet, Antares, Medi-jector, Vision technology, etc. A needleless device may also help to improve compliance among patients who might otherwise avoid the discomfort of regularly injecting themselves with drugs. Needle- free liquid jet injectors have been used for more than fifty years for parenteral delivery of vaccines and drugs. This review article discusses, in brief, the novel and emerging technologies that are in pipeline, including insulin inhalers, insulin spray, insulin pill, insulin analogues, insulin complement, islet cell transplant, implantable insulin pumps and guardian continuous glucose monitoring system.
