Heart catheter

Claim 1

A heart catheter comprising a hose having a distal end forming a sonde including an electrode structure means for locating pathological areas, a light transmitting fiber disposed in said hose so as to extend axially therethrough and being axially movable therein, said light transmitting fiber having a tip for the irradiation of said pathological areas, said electrode structure means including electrical sensors mounted on a slide member axially movably disposed in the distal end of said hose and said light transmitting fiber having an insulation sleeve to which said slide member is connected, a mechanical push-pull structure operably associated with said slide member for axial advance of said electrical sensors in unison with said fiber thereby rendering said electrical sensors retractable into and extendable from the distal end of said hose while maintaining a predetermined distance between said fiber tip and the front end of said electrical sensors which are adapted to engage tissue in said pathological areas for securing the position of said sonde relative to said tissue, said fiber being spaced from said hose so as to provide a passage space between said fiber and the inner wall of said hose adapted to conduct a physiological solution through the hose to the distal end thereof for discharge therefrom around the end tip of said fiber when said fiber and said electrical sensors are extended thereby forming a solution path in front of said fiber tip to said tissue through which laser light supplied to said fiber is conductable to said tissue while said fiber tip remains at said predetermined distance therefrom.