US 12,239,356 B2
Apparatus for supplying a medical instrument and method for monitoring an instrument
Martin Georg Fritz, Tuebingen (DE)
Assigned to ERBE ELEKTROMEDIZIN GMBH, Tuebingen (DE)
Filed by ERBE ELEKTROMEDIZIN GMBH, Tuebingen (DE)
Filed on Apr. 25, 2023, as Appl. No. 18/138,961.
Application 18/138,961 is a continuation of application No. 16/562,015, filed on Sep. 5, 2019, granted, now 11,666,371.
Claims priority of application No. 18193140 (EP), filed on Sep. 7, 2018.
Prior Publication US 2023/0255675 A1, Aug. 17, 2023
Int. Cl. A61B 18/12 (2006.01); A61B 18/02 (2006.01); A61B 18/10 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01); A61B 18/14 (2006.01)
CPC A61B 18/10 (2013.01) [A61B 18/02 (2013.01); A61B 18/1206 (2013.01); A61B 2017/00022 (2013.01); A61B 2018/00779 (2013.01); A61B 2018/126 (2013.01); A61B 18/14 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus for supplying at least one of an operating power and an operating medium via a line to a medical instrument for treating tissue, the apparatus comprising:
a test signal emitter adapted to deliver successive test signals to the line, the successive test signals having a first shape;
an echo signal receiver adapted to receive successive echo signals caused by the test signals, the successive echo signals having a second shape different than the first shape, wherein the second shape is an envelope curve; and
an analysis arrangement adapted to detect, based on the change in the envelope curve of the echo signal, a length of the line.