PIVOTABLE OPTICAL ASSEMBLY FOR A SURGICAL MICROSCOPE, IN PARTICULAR 0°-ASSISTANTS DEVICE, AND A RETAINING SYSTEM FOR SAID PIVOTABLE OPTICAL ASSEMBLY OF THE SURGICAL MICROSCOPE
The present invention provides a pivotable optical assembly for a surgical microscope, specifically a zero-degree assistants device, the assembly comprising: a microscope body interface for mounting the assembly on a microscope body an assistants module including an interface for an assistants tube, the assistants module being pivotable about a pivot axis relative to the microscope body and a retaining system that blocks pivoting the assistants module about the pivot axis. The retaining system comprises: a retaining element being moveable from a locking position into a release position, a biasing member forcing the retaining element into the locking position, and a hand-operable control element acting on the retaining element for moving it from the locking position into the release position, as well as a pivotable optical assembly comprising said retaining system according to the invention, whose retaining element, in its blocking position, blocks pivoting the assistants module about the pivot axis.
