Needle-less injector
作者： Terence Edward Weston
DOI:
关键词: Spring (mathematics) 、 Contact pressure 、 Biomedical engineering 、 Cartridge 、 Injector 、 Piston 、 Materials science 、 Body orifice 、 Volume (thermodynamics) 、 Simulation
摘要: A needle-less injector comprises a cartridge (3) prefilled with liquid (9), which contains free sliding piston (32) and an injection orifice (10). ram (22) is urged by pre-loaded spring (24) for striking the said to cause injections. Adjusting means (6) can be provided vary volume injected. trigger device (26, 30) initiates only when optimum contact pressure reached between discharge (1) epidermis of subject. The initial loading power sufficient dispense all contents medicament in one dose or multiple sequential doses. Disposable reusable embodiments are described.
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