| 摘要 |
Devices are provided to automatically inject drugs or other payloads into or beneath skin. These devices (100) include an injector (135) configured to drive a hollow needle (120) into the skin and subsequently to deliver the payload (155) through the hollow needle. Applied suction acts to draw blood from the puncture formed in the skin through the hollow needle, into the device, and to a sensor, blood storage element (141), or other payload. In some examples, the blood is drawn through the hollow needle when the hollow needle is penetrating the skin. In some examples, these devices are additionally configured to retract the hollow needle from the skin and/ or to perform some other functions. These devices can be wearable and configured to automatically access blood or deliver a payload into skin, for example, to operate at one or more points in time while a wearer of a device is sleeping. |
