A method for securing radio resources for a Long Term Evolution-unlicensed, LTE-U, data transmission is disclosed. The toothbrush system includes a handle portion having a reservoir, a plunger member positioned within the reservoir actuated by a control knob and threaded shaft, a head unit threadably attached to the handle portion having a passageway, a plurality of dispensing nozzles within the head unit, and a plurality of bristle member extending from the head unit. The amount of power consumed can be reduced when increasing the cuff pressure for blood pressure measurement using the piezoelectric pump. The shield apparatus also includes a retainer integral with the binding member and in communication with the needle for temporarily retaining the binding surfaces in a non-binding position relative to the needle.