Shaft element for an endoscopic instrument

摘要

A shaft element for an endoscopic instrument includes a first, proximal shaft segment and a second, distal shaft segment, such that the second shaft segment is connected with the first shaft segment by three connecting elements, such that the connecting elements each include a first two-axis joint, such that the first joints form a triangle and such that the first connecting element is connected with the first shaft segment in such a way that it cannot slide with respect to the latter in a longitudinal direction, and a second and third connecting elements can each be slid with respect to the first shaft segment in a longitudinal direction independently of one another. The invention also relates to an endoscopic instrument, in particular an endoscope with such a shaft segment.

主权项

1. A shaft element for a medical endoscopic instrument, the shaft element comprising:
a first, proximal shaft segment; and a second, distal shaft segment, the second shaft segment being connected with the first shaft segment by three connecting elements; the connecting elements each having a first two-axis joint, the first joints being positioned from each other on a proximal end plane of the second shaft segment in a triangular shape, the first joints forming vertices of the triangular shape, the triangular shape being an equilateral triangle; wherein a first connecting element of the connecting elements is connected with the first shaft segment in such a way that the first connecting element is non-slidable with respect to the first shaft segment in a longitudinal direction, and a second and third connecting elements are each slidable in a longitudinal direction with respect to the first shaft segment independently of one another; wherein the second and third connecting elements are configured as at least partly rigid push rods.