Abstract: A microfluidic flow rate sensor includes a droplet within a channel and a droplet movement detector that generates a signal based on the position and/or movement of the droplet within the channel. A processor determines the flow rate of a fluid through the channel based on the signal received from the droplet movement detector. In one example, the droplet movement detector is an optical detector, such as a combination of a lens and an image capturing device. In other examples, the droplet is electrically conductive, and at least a portion of the channel is conductive or includes electrical contacts. The position of the droplet within the channel is determined by observing the electrical characteristics of the channel.

Abstract: A microfluidic flow rate sensor includes a droplet within a channel and a droplet movement detector that generates a signal based on the position and/or movement of the droplet within the channel. A processor determines the flow rate of a fluid through the channel based on the signal received from the droplet movement detector. In one example, the droplet movement detector is an optical detector, such as a combination of a lens and an image capturing device. In other examples, the droplet is electrically conductive, and at least a portion of the channel is conductive or includes electrical contacts. The position of the droplet within the channel is determined by observing the electrical characteristics of the channel.

Abstract: A method and apparatus for fitting an auditory stimulation system involve, in one embodiment, coupling a programmer unit to an implanted unit implanted in the patient; prompting and/or assisting the operator to make and enter an objective or other measurement; receiving the objective measurements into the programmer unit; and determining an estimated threshold stimulation current for an electrode channel of the implanted unit as a function of the objective measurement. In another embodiment, the method and apparatus involve coupling a programmer unit to an implanted unit implanted in the patient; stimulating the patient with a speech signal; and displaying, in real time, a graphical representation of the speech signal using the programmer unit.