Medical apparatus including on isolating transformer apparatus for isolating medical apparatus from non-medical apparatus to prevent electrical shocks to patients

A medical apparatus comprising the combination of:

• an electrical medical apparatus for use with an endoscope connectable thereto and adapted for at least one of a diagnostic and medical treatment;
• at least one electrical non-medical apparatus including a line cord and a plug, said at least one electrical non-medical apparatus being used in association with said electrical medical apparatus;
• and
• an isolating transformer apparatus isolating a patient from electrical shocks from said electrical medical apparatus used together with said electrical non-medical apparatus, said isolating transformer apparatus being connectable by an authorized person to a commercial power supply and being connected to said line cord and plug of said electrical non-medical apparatus, said electrical medical apparatus being connectable to said commercial power supply, said isolating transformer apparatus including:
• a housing having a plurality of walls;
• a transformer contained in said housing, said transformer having a primary and secondary winding, said primary winding being connectable to said commercial power supply, and said secondary winding being electrically isolated from said primary winding;
• a power supply socket mounted on said wall of said housing and being connected to said secondary winding, said socket having means for receiving therein said plug of said electrical non-medical apparatus;
• retainer means provided on an outside portion of said housing, said retainer means preventing said plug of said electrical non-medical apparatus from being removed when said plug is connected to said power supply socket;
• and
• locking means for locking said retainer means to said housing, said locking means preventing removal of said retainer means without an engaging and disengaging tool.