Abstract: A control solution for determining the performance of an electrochemical sensing system for measuring the concentration of an analyte in a body fluid sample and methods using the same are provided. The control solution contains the analyte at a predetermined amount and an alcohol-containing adjustor. The control solution generates a current signal from the electrochemical sensing system when the performance of the electrochemical sensing system is qualified and obtains a measured concentration corresponding to the current signal, wherein the measured concentration is less than the real concentration corresponding to the predetermined amount.

Abstract: A trigger switch structure of a nail driver is disclosed. The nail driver body comprises a nail driver body; a security device; one end of the security device being connected to the trigger device of the nail driver body; a trigger device: a trigger cover pivotally installed to the nail driver body; the trigger device being a U shape device; a driving sheet pivotally connected to the trigger cover and received in the trigger cover; a pivotal rod passing through the holes on the trigger cover and the driving sheet so as to fix the driving sheet to the trigger cover; and a switch; one end of the switch being formed with a ring; a stopper being extended downwards from the ring; a lower side of the stopper being formed with a recess; and the stopper protruded downwards between the ring and the recess being buckled to the block.

Abstract: A triggering switching device of a nail driver comprises a nail driver body; a trigger in the nail driver body; a rotatable buckle block pivotally installed at one end of the trigger; the buckle block having a buckle end protruded from the other portions of the buckle block; a trigger switch at a rear side of the trigger. When the buckle block is moved so that the buckle end is vertical to the trigger and the moving length of the trigger as the trigger is pressed is shorten, an operation of continuous beating a nail is formed; moreover when the buckle block is moved to be parallel to the trigger, the moving length of the trigger is lengthened so as to be in a state of sequential beating a nail.

Abstract: A trigger switch structure of a nail driver is disclosed. The nail driver body comprises a nail driver body; a security device; one end of the security device being connected to the trigger device of the nail driver body; a trigger device: a trigger cover pivotally installed to the nail driver body; the trigger device being a U shape device; a driving sheet pivotally connected to the trigger cover and received in the trigger cover; a pivotal rod passing through the holes on the trigger cover and the driving sheet so as to fix the driving sheet to the trigger cover; and a switch; one end of the switch being formed with a ring; a stopper being extended downwards from the ring; a lower side of the stopper being formed with a recess; and the stopper protruded downwards between the ring and the recess being buckled to the block.

Abstract: A triggering switching device of a nail driver comprises a nail driver body; a trigger in the nail driver body; a rotatable buckle block pivotally installed at one end of the trigger; the buckle block having a buckle end protruded from the other portions of the buckle block; a trigger switch at a rear side of the trigger. When the buckle block is moved so that the buckle end is vertical to the trigger and the moving length of the trigger as the trigger is pressed is shorten, an operation of continuous beating a nail is formed; moreover when the buckle block is moved to be parallel to the trigger, the moving length of the trigger is lengthened so as to be in a state of sequential beating a nail.