The prior art teachings for encoding signals and transmitting them over a plurality of antennas are advanced by disclosing a method for encoding for any number of transmitting antennas. The adjustment knob, forehead cushion support, and frame connector are constructed and arranged such that over-rotation of the adjustment knob beyond the extended position of the forehead cushion support is adapted to release the adjustment knob from the forehead cushion support and the frame connector. Access points provide a communication, or frequency, channel over which similarly configured end user devices obtain access to data networks for client devices. A set of fixed and movable jaws is also provided in the jaw cavity and functions mostly to fold the paper section rather than to grip the same against accidental detachment. A method for insertion of the dialysis catheter is also disclosed.