An ultrasound catheter (10) comprising: a flexible catheter body elongate (12) having a proximal end, a distal end and at least one lumen extending longitudinally therethrough, a transmission ultrasound ( 30) extending longitudinally through the lumen of the catheter body (12), the element ultrasound transmission (30) having a proximal end and a distal end located at the distal end of the catheter body, the sonic connector ( 200) located at the proximal end of the ultrasound transmission (30) for connecting the ultrasound transmission (30) to a device for generating separate ultrasound, sonic connector (200) comprising a proximal section for connection to the device separately generating ultrasounds and a front portion extending distally from a central portion of the sonic connector, with the sonic connector (200) a hole receiving the proximal end of the ultrasound transmission, along the catheter comprising a housing handle (302) housing at least the front of the sonic connector (200) inside a hole (300) of the housing handle ( 302), it element extending ultrasound transmission (30) through the hole (300), the hole (300) comprising a tapered portion (310) in which the hole diameter is reduced through which extends element ultrasound transmission (30), wherein the tapered portion (310) is provided in an intermediate position between the front of the sonic connector (200) and the point at which the transmission element ultrasound (30 ) exits the housing of the handle (302) further comprising absorption means (330e, 330F) retained in the bore (30) to surround the ultrasound transmission member (30) being provided means absorption (330e, 330F) of both proximally and distally with respect to the tapered portion (310), means proximal absorption and distal to the tapered portion positioned to contact the housing parts shooter v being that form the tapered portion (310).Un catéter de ultrasonidos (10), que comprende: un cuerpo de catéter flexible alargado (12) que tiene un
