(19) United States
(12) Patent Application Publication (io) Pub. No.: US 2002/0055754 Al
Ranucci et al. (43) Pub. Date: May 9,2002
(54) UTRASONIC PROBE DEVICE WITH RAPID ATTACHMENT AND DETACHMENT MEANS
(76) Inventors: Kevin Ranucci, Coventry, RI (US);
Robert A. Rabiner, North Reading,
MA (US); Bradley A. Hare,
Chelmsford, MA (US); Mark J.
Varady, Holliston, MA (US); Rebecca
I. Marciante, North Reading, MA
(US); Roy Robertson, Ipswich, MA
PALMER & DODGE, LLP
KATHLEEN M. WILLIAMS / STR
111 HUNTINGTON AVENUE
BOSTON, MA 02199 (US)
(21) Appl. No.: 09/975,725
(22) Filed: Oct. 11, 2001
Related U.S. Application Data
(63) Continuation-in-part of application No. 09/625,803, filed on Jul. 26, 2000, which is a non-provisional of provisional application No. 60/157,824, filed on Oct.
5, 1999 and which is a non-provisional of provisional application No. 60/225,060, filed on Aug. 14, 2000.
(51) Int. CI.7 A61B 17/32
(52) U.S. CI 606/169
An ultrasonic tissue ablation device comprising a transversely vibrating elongated probe, and a coupling assembly for probe attachment detachment that enables the probe assembly and separation from the device body that includes the ultrasound energy source and a sound conductor, and a method of use for removal of vascular occlusions in blood vessels. The coupling assembly enables incorporation of elongated probes with small cross sectional lumens such as a catheter guidewires. The probe detachability allows insertion manipulation and withdrawal independently of the device body. The probe can be used with acoustic and/or aspirations sheaths to enhance destruction and removal of an occlusion. The horn assembly of the device that contains a sound conducting horn functions as an energy regulator and reservoir for the probe, and precludes loss of probe cavitation energy by its bending or damping within the blood vessel.