US 12,268,434 B2
Electrode instrument for a resectoscope, and resectoscope
Christian Brockmann, Hollenstedt (DE); Christoph Knopf, Stockelsdorf (DE); and Andreas Offt, Reinbek (DE)
Assigned to OLYMPUS WINTER & IBE GMBH, Hamburg (DE)
Filed by Olympus Winter & Ibe GmbH, Hamburg (DE)
Filed on Feb. 7, 2022, as Appl. No. 17/665,789.
Claims priority of application No. 10 2021 102 736.5 (DE), filed on Feb. 5, 2021.
Prior Publication US 2022/0249153 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/149 (2013.01) [A61B 2018/00077 (2013.01); A61B 2018/00083 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/00982 (2013.01); A61B 2018/1407 (2013.01); A61B 2218/002 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electrode instrument for a resectoscope, the electrode instrument comprising an electrode at a distal end and being able to be releasably coupled at a proximal end to a working element of the resectoscope via an electrical contact,
wherein two electrode casing tubes run from the electrode to the proximal end, and a first of the two electrode casing tubes comprises an active contact, and a second of the two electrode casing tubes comprises a return contact, and
wherein proximal portions of the two electrode casing tubes have a rectilinear configuration along a length of at least 24 mm, and/or distal portions of the two electrode casing tubes have a rectilinear configuration along a length of at least 100 mm.