| abstract |
A patch-like injection device is provided that can be conveniently worn by pressing against the skin, injecting a desired substance by using one or more microneedles, and minimizing pain. thing. The device 100 can be attached to the skin surface via an adhesive contact surface, and then the actuation assembly of the push button 105 is used to remove the interlock 135, thereby disc or disc spring 130. With this assembly, an essentially uniform and constant pressure is applied to the contents of the fluid reservoir assembly. The push button actuation assembly further releases one or more spring-loaded patient needles 141 into the skin surface between the patient needle 141 and the pressurized fluid reservoir contents 150. A fluid communication path is established, thereby injecting into the skin. After use, the push button actuation assembly further releases one or more improved safety mechanisms. [Selection] Figure 1 |