Einschraubelektrodensonde for cardiology application

A Einschraubelektrodensonde for cardiac application comprises an elongated electrode body (1), a therein extending lead (10) and an electrode head (3) at the distal end (2). The latter is provided with a housing (5), a therein rotatably and axially slidably mounted shaft (6) and a screw-corkscrew (4) on the shaft (6). Between these components, a contact spring in the form of a substantially flat spiral spring (11) is arranged which, with its leg ends (12, 13) exerting a radially directed spring force (F) is slidably connected to the housing (5) and the shaft (6) is in contact.