DOUBLE LOOP WITH SINGLE CONTROL WIRE FOR BILATERAL ACTION Russian patent published in 2017 - IPC A61B5/27 

FIELD: medicine.

SUBSTANCE: catheter comprises: an elongated tubular catheter body with at least one lumen extending therethrough; a divergent intermediate portion having a proximal and a distal end and at least two off-axis lumens extending therethrough. The proximal end is attached to the distal end of the catheter body; and a distal assembly located distally from the divergent intermediate portion. The distal assembly comprises: a tubular structure having a generally straignt proximal zone attached to the intermediate portion and a generally circular main zone generally located transversely and distally with respect to the proximal zone; an elongated support member extending through the distal assembly. The elongated support member has the property of shape memory; a non-conductive coating at least over the main zone of the distal assembly; and at least one electrode located on the generally circular main zone of the distal assembly; at least one washer located at the distal end of the divergent intermediate portion. The washer has at least two off-axis lumens, each of which is axially aligned with the corresponding off-axis clearance of the diverted intermediate portion; an exhaust wire having two proximal portions and an intermediate portion transverse to the two proximal portions. Each distal segment passes through the corresponding off-axis clearance of the divergent intermediate portion and the corresponding off-axis clearance of the washer. The middle section is located distally off the washer and continues between two off-axis clearances; and a control lever comprising a deflection mechanism adapted to act on at least one proximal portion of the exhaust wire fixed in the control lever to deflecting the divergent intermediate portion.

EFFECT: convenience in use and manufacture.

19 cl, 8 dwg