| CPC A61B 1/0057 (2013.01) [A61B 1/0052 (2013.01); A61B 1/015 (2013.01); A61B 1/2736 (2013.01)] | 29 Claims |

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1. An endoscope for use in a surgical procedure, comprising:
a handle for gripping by a user, the handle including a common shaft to which a rotatable left/right steering roller wheel is keyed and about which a rotatable up/down steering thumb knob is freely rotated; and
a shaft extending from the handle and configured to be longitudinally inserted into a patient;
the shaft including an outer jacket defining an outer surface of the shaft,
the shaft also including an inner channel defining a working channel extending longitudinally through the shaft,
the shaft including an open space between the outer jacket and the inner channel,
the shaft also including an electrical wire extending longitudinally within the open space.
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