Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
1995-11-30
1998-03-10
Bockelman, Mark
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
606169, A61B 1720
Patent
active
057254940
ABSTRACT:
An ultrasonic catheter comprises a catheter body having a resonantly vibrating assembly at its distal end. The resonantly vibrating assembly comprises a tail mass, an interface member, and a spring element which connects the tail mass to the interface member. An interface surface is formed on the interface member and is forwardly disposed at the distal end of the catheter. A longitudinally oscillating driver is disposed between the tail mass and the interface member, and the catheter can be connected to a suitable power supply to induce oscillations in the driver. The driver is typically a piezoelectric device, such as a tubular piezoelectric transducer or a piezoelectric stack. The characteristics of the interface member, spring element, and longitudinally oscillating driver are selected so that the interface member may be resonantly vibrated at an ultrasonic frequency. The catheter is useful for treating luminal conditions, such as vascular clot and plaque. Optionally, a therapeutic agent may be delivered through the catheter simultaneously with the application of ultrasonic energy.
REFERENCES:
patent: 3433226 (1969-03-01), Boyd
patent: 3565062 (1971-02-01), Kuris
patent: 4636195 (1987-01-01), Wolinsky
patent: 4692139 (1987-09-01), Stiles
patent: 4698058 (1987-10-01), Greenfeld et al.
patent: 4808153 (1989-02-01), Parisi
patent: 4838853 (1989-06-01), Parisi
patent: 4870953 (1989-10-01), DonMichael et al.
patent: 4936281 (1990-06-01), Stasz
patent: 4948587 (1990-08-01), Kost et al.
patent: 5085662 (1992-02-01), Willard
patent: 5163421 (1992-11-01), Berstein et al.
patent: 5197946 (1993-03-01), Tachibana
patent: 5267954 (1993-12-01), Nita
patent: 5267985 (1993-12-01), Shimada et al.
patent: 5269291 (1993-12-01), Carter
patent: 5269297 (1993-12-01), Weng et al.
patent: 5279546 (1994-01-01), Mische et al.
patent: 5282785 (1994-02-01), Shapland et al.
patent: 5286254 (1994-02-01), Shapland et al.
patent: 5304115 (1994-04-01), Pflueger et al.
patent: 5315998 (1994-05-01), Tachibana et al.
patent: 5318014 (1994-06-01), Carter
patent: 5324255 (1994-06-01), Passafaro et al.
patent: 5342292 (1994-08-01), Nita et al.
patent: 5344395 (1994-09-01), Whalen et al.
patent: 5362309 (1994-11-01), Carter
patent: 5380273 (1995-01-01), Dubrul et al.
patent: 5397301 (1995-03-01), Pflueger et al.
patent: 5447509 (1995-09-01), Mills et al.
patent: 5456259 (1995-10-01), Barlow et al.
patent: 5458568 (1995-10-01), Racchini et al.
patent: 5458631 (1995-10-01), Xavier
patent: 5462523 (1995-10-01), Samson et al.
patent: 5465725 (1995-11-01), Seyed-Bolorforosh
patent: 5474530 (1995-12-01), Passafaro et al.
patent: 5474531 (1995-12-01), Carter
Rosenschein, U. et al. "Experimental Ultrasonic Angioplasty: disruption of Atherosclerotic Plaques and Thrombi in Vitro and Arterial Recanalization in Vivo," (1990) JACC vol. 15, No. 3, pp. 711-717.
Yumita, N. et al. "Synergistic Effect of Ultrasound and Hematoporphyrin on Sarcoma 180," (1990) JPN. J. CANCER RES. 81, pp. 304-308.
Tachibana, K. "Enhancement of Fibrinolysis with Ultrasound Energy," (1992) J. Vascular & Interventional Radiography 3(2) pp. 299-303.
Bockelman Mark
Pharmasonics, Inc.
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