Endoscope with acutely angled handle and associated focus adjustment mechanism

A hand holdable endoscope, comprising:

• an operation section having a longitudinal axis, a first end and a second end;
• a rotatable focus adjustment section having a longitudinal axis, a first end and a second end, the first end mounted to the first end of said operation section, the longitudinal axes of said focus adjustment section and said operation section being aligned with one another;
• a connection portion having a first end and a second end, the first end connected to the second end of said focus adjustment section;
• an insertion section connected to and extending from the second end of said connection portion and having a forward end containing a focus lens system;
• a grip member mounted to said operation section and having a longitudinal axis, said grip member extending from said operation section toward said insertion section in such a manner that the longitudinal axis of said grip member is at an acute angle against the longitudinal axes of said focus adjustment section and said operation section;
• and
• a focus adjustment wire extending through said insertion section, said focus adjustment wire fixed at one end to said focus adjustment section and at an opposite end to said focus lens system, whereby the focus adjustment section is adapted to be rotated by a finger of a hand of an operator holding the grip member.