The invention discloses a colonoscope
handle operator for assisting a doctor in
colonoscopy. A poking wheel driving mechanism, a
handle fixing mechanism, a
biopsy forceps closing mechanism and a
biopsy forceps conveying mechanism are arranged on a U-shaped supporting plate; the
handle fixing mechanism is used for fixing the colonoscope handle on the handle fixing mechanism; and a colonoscope thumbwheel is tightly attached to the inner side of a
thumb wheel shell. A doctor drives the motor to control the rotating direction and angle of a poking wheel; the motor and the
thumb wheel shell are driven by a synchronous belt; the accuracy of the rotating angle of the
thumb wheel is ensured; the
biopsy forceps conveying mechanism can ensure that
biopsy forceps wires are conveyed into a biopsy channel; the
biopsy forceps closing mechanism can control the opening and closing of the
biopsy forceps tip. The operator can replace a traditional mode of manual
impeller operation of a doctor to solvea problem that muscles of fingers and shoulders of the doctor are injured by long-time
impeller stirring; meanwhile, a traditional mode of assisting the doctor in operating conveying and opening and closing of biopsy forceps by an assistant is replaced, and the purpose that the doctor independently completes colon examination and polyp extirpating work is achieved.