IP Library › Granted Patent US 12672911
Granted Patent B2
US 12672911 · App. 18/132,106 · Granted Jul 7, 2026

Resectoscope and electrode instrument for a resectoscope

Inventors: Martin Horn (Hamburg, DE); Christian Brockmann (Hollenstedt, DE)
Assignee: OLYMPUS WINTER & IBE GMBH
A61B18/149A61B2017/00738A61B2018/00601A61B2018/1475
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Quick Facts
Patent No.
US 12672911
App. No.
18/132,106
Granted
Jul 7, 2026
Kind
B2
Abstract

An electrode instrument and a resectoscope, wherein a cross section of the at least one electrode carrier is locally enlarged between the distal end of the electrode carrier and a guide element.

Claims (13)

1 . An electrode instrument for a resectoscope having an electrode, the electrode being fastened to two distal ends of two electrode carriers aligned parallel with one another, and at least one guide element that connects the two electrode carriers to one another being arranged on the electrode carriers, wherein:

a cross section of at least one of the two electrode carriers is locally enlarged between the two distal ends of the two electrode carriers and the at least one guide element;

an instrument tip is arranged on distal portions of the two electrode carriers and configured to move freely along the distal portions of the two electrode carriers; and

the locally enlarged cross section of at least one of the two electrode carriers between the instrument tip and the at least one guide element is configured to prevent the instrument tip from moving within a predetermined distance of the guide element.

2 . The electrode instrument for a resectoscope as claimed in claim 1 , wherein the locally enlarged cross section is arranged in front of the instrument tip as seen in a proximal direction.

3 . The electrode instrument for a resectoscope as claimed in claim 1 , wherein the locally enlarged cross section has an oval shape, the cross-sectional enlargement having an oval shape in comparison to a cross section of one of the two electrode carriers.

4 . The electrode instrument for a resectoscope as claimed in claim 3 , wherein the oval shape is aligned perpendicularly to a plane defined by the two electrode carriers.

5 . The electrode instrument for a resectoscope as claimed in claim 1 , wherein crimping a sleeve to the two electrode carriers and applying a solder spot on the two electrode carriers forms the locally enlarged cross section of the at least one of the two electrode carriers.

6 . The electrode instrument for a resectoscope as claimed in claim 1 , wherein the instrument tip has two bores, through which the two electrode carriers are guided, the instrument tip being mounted such that the instrument tip is configured to move freely along the two electrode carriers.

7 . The electrode instrument for a resectoscope as claimed in claim 6 , wherein the locally enlarged cross section is larger than the bore through the instrument tip.

8 . The electrode instrument for a resectoscope as claimed in claim 1 , wherein the two electrode carriers have a cross-sectional enlargement, these being dimensioned in such a way that the instrument tip move beyond the cross-sectional enlargements.

9 . The electrode instrument for a resectoscope as claimed in claim 1 , wherein a distal guide element is offset in relation to the distal end of the electrode carrier in a proximal direction by from 10 mm to 100 mm.

10 . A resectoscope having the electrode instrument as claimed in claim 1 and an inner shaft, in which optics are mounted, the electrode instrument being guidable with at least one guide element on the inner shaft.