INCISING CATHETER FOR TREATMENT OF AFFECTED HEART VALVES Russian patent published in 2012 - IPC A61B17/32 

FIELD: medicine.

SUBSTANCE: invention relates to medicine. Catheter for valvuloplasty has incising element in its distal part for incising stenotic calcified heart valves in radial direction and making cuspsflaps of the single valve work again. Incising catheter contains elongated case with distal end and proximal end and, at least, one incising element at distal end of case. Incising element is made with possibility of unfolding from compact state with placement near catheter case into extended state with larger diameter, in such a way that affected valves can be incised and opened again. Incising element contains, at least, one rotary rod and, at least one extending element, whose free end is capable of incising affected heart valves. At least, one rotary rod is pivotally attached on its medial section from proximal end of extendable rod, which passes in longitudinal direction of incising element in compact state. Proximal end of rotary rod is capable of travel in longitudinal direction of incising element with respect to distal end of extendable rod, rotating in this way rotary rod.

EFFECT: elaboration of improved catheter construction.