US 12,446,945 B2
Cryoprobe
Joerg Kronenthaler, Hirrlingen (DE); and Marcus Adler, Burladingen (DE)
Assigned to Erbe Elektromedizine GmbH, Tuebingen (DE)
Filed by Erbe Elektromedizin GmbH, Tuebingen (DE)
Filed on Jul. 14, 2020, as Appl. No. 16/928,720.
Claims priority of application No. 19187779 (EP), filed on Jul. 23, 2019.
Prior Publication US 2021/0022788 A1, Jan. 28, 2021
Int. Cl. A61B 18/02 (2006.01); A61B 10/04 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01); A61L 29/02 (2006.01)
CPC A61B 18/02 (2013.01) [A61B 10/04 (2013.01); A61L 29/02 (2013.01); A61B 2017/00323 (2013.01); A61B 2018/00505 (2013.01); A61B 2018/0212 (2013.01); A61B 2018/0268 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A cryoprobe configured for tissue sampling in an upper urinary tract of a patient, the cryoprobe comprising:
a flexible hollow hose having a distal end and a proximal end;
a head attached to the distal end of the flexible hollow hose and forming a lumen, the head configured to sample tissue by application of a tensile force;
a tube within the lumen, at least a portion of the tube extending into the lumen and being positioned offset from a center longitudinal axis of the flexible hollow hose, the tube having a distal end and a proximate end and forming a fluid channel within the lumen and the tube having at least one first section being flexible and bendable, the tube having a second section having a tensile strength greater than the at least one first section, the at least one first section disposed between the second section and the proximate end of the tube;
a nozzle inserted into the distal end of the tube at the at least one flexible and bendable first section, the nozzle projecting from the distal end of the tube in a distal direction; and,
a single pull element connected to the second section and extending through the lumen and extending over the at least one flexible and bendable first section of the tube, wherein the cryoprobe including the single pull element within the flexible hollow hose is flexibly bendable by at least 90 degrees.