ABLATION ASSEMBLY WITH ELASTOMERIC DRIVESHAFT CONNECTION

摘要

An ablation assembly (10) is disclosed having a drive assembly (16) positioned in a housing (29) and movable along a longitudinal path of motion within the housing. A tubular shaft (30) extends along a longitudinal axis of the housing between the drive assembly and the end of the housing. The drive assembly includes a turbine (22) coupled to an elastomeric plug (19). An aperture (20) extends longitudinally through the elastomeric plug. A tube (15) is attached to a proximal end of a driveshaft (12) and an ablation instrument (11) is coupled to the distal end of the driveshaft. The tube has a sufficient length to be inserted through the tubular shaft until the proximal end of the tube engages the elasomeric plug with an interference fit within the aperture, thereby coupling the driveshaft to the drive assembly.