ENDOSCOPE HAVING A DISTAL ELECTRICAL FEED-THROUGH, AND METHOD FOR ASSEMBLING AN ENDOSCOPE

摘要

An endoscope having a distal electrical feed-through, the endoscope including: an endoscope shaft having a distal objective unit comprising an electromagnetic actuator and a distal optical assembly that can be shifted in a longitudinal direction by actuation of the actuator, the endoscope shaft having a proximal unit having a proximal optical assembly arranged after the distal optical assembly in the direction of incident light, the objective unit is rotatable relative to the proximal unit about a longitudinal axis during assembly of the endoscope and is fixed rotationally relative to the proximal unit after assembly; and a cable for supplying current to the actuator, the cable being fed from the proximal unit to the objective unit, the cable having an excess length at a transition from the proximal unit to the objective unit, such excess length being at least half of the outer circumference of the objective unit.

主权项

1. An endoscope having a distal electrical feed-through, the endoscope comprising:
an endoscope shaft having a distally arranged objective unit, the objective unit comprising an electromagnetic actuator and a distal optical assembly that can be shifted in a longitudinal direction of the endoscope shaft by actuation of the actuator, the endoscope shaft further having a proximal unit having a proximal optical assembly arranged after the distal optical assembly in the direction of incident light, wherein the objective unit is rotatable relative to the proximal unit about a longitudinal axis of the endoscope shaft during assembly of the endoscope and is fixed in a rotationally secure manner relative to the proximal unit after the assembly; and at least one cable for supplying current to the actuator, the at least one cable being fed from the proximal unit to the objective unit, the at least one cable having an excess length at a transition from the proximal unit to the objective unit, such excess length being at least half of the outer circumference of the objective unit.