Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Reexamination Certificate
2011-08-30
2011-08-30
Jung, Unsu (Department: 3768)
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
C600S437000, C600S439000, C600S462000, C600S463000, C600S466000
Reexamination Certificate
active
08007440
ABSTRACT:
An intravascular ultrasound catheter system is provided and enables a simplified, economical technique for ultrasound visualization of a blood vessel. The catheter may include a spark ablation system for crossing chronic total occlusions and severe stenoses. The catheter is advanceable and is oriented entirely under manual control of the clinician and the application of radiofrequency energy for spark erosion of the stenosis also is controlled manually by the clinician. The system enables the clinician to observe an ultrasound image sufficiently to determine where to orient the ablation electrode so as to reduce the risk of dissection or perforation of the blood vessel. The ultrasound image is generated in response to manual rotation of the catheter and the ablation spark is generated only when the physician is satisfied as to the orientation of the electrode within the vessel.
REFERENCES:
patent: 2056377 (1936-10-01), Wappler
patent: 4532924 (1985-08-01), Auth et al.
patent: 4643186 (1987-02-01), Rosen et al.
patent: 4682596 (1987-07-01), Bales et al.
patent: 4794931 (1989-01-01), Yock
patent: 4951677 (1990-08-01), Crowley et al.
patent: 5000185 (1991-03-01), Yock
patent: 5109859 (1992-05-01), Jenkins
patent: 5243988 (1993-09-01), Sieben et al.
patent: 5313949 (1994-05-01), Yock
patent: 5345940 (1994-09-01), Seward et al.
patent: 5350390 (1994-09-01), Sher
patent: 5366443 (1994-11-01), Eggers et al.
patent: 5373845 (1994-12-01), Gardineer et al.
patent: 5421338 (1995-06-01), Crowley et al.
patent: 5454809 (1995-10-01), Janssen
patent: 5577506 (1996-11-01), Dias
patent: 5588432 (1996-12-01), Crowley
patent: 5606975 (1997-03-01), Liang et al.
patent: 5651366 (1997-07-01), Liang et al.
patent: 5697909 (1997-12-01), Eggers et al.
patent: 5741270 (1998-04-01), Hansen et al.
patent: 5749914 (1998-05-01), Janssen
patent: 5840030 (1998-11-01), Ferek-Petric et al.
patent: 5935108 (1999-08-01), Katoh et al.
patent: 6200269 (2001-03-01), Lin et al.
patent: 6241744 (2001-06-01), Imran et al.
patent: 6394956 (2002-05-01), Chandrasekaran et al.
patent: 6461383 (2002-10-01), Gesswein et al.
patent: 6638222 (2003-10-01), Chandrasekaran et al.
patent: 2002/0032437 (2002-03-01), Andrews et al.
patent: 2002/0183826 (2002-12-01), Dorn et al.
patent: 2003/0040737 (2003-02-01), Merril et al.
patent: 2004/0015065 (2004-01-01), Panescu et al.
patent: 8700632 (1988-10-01), None
Slager, et al., “Directional Plaque Ablation by Spark Erosion Under Ultrasound Guidance: First Evaluation of a Catheter Incorporating Both Techniques”, Chapter 8, pp. 81-90, part of a Thesis book that was published Dec. 17, 1997 at a public presentation.
Slager, et al., “Spark Erosion and Its Combination with Sensing Devices for Ablation of Vascular Lesions”, Chapter 13, in John H.K. Vogel and Spencer B. King, III,Interventional Cardiology: Future Directions, The C.V. Mosby Company, St. Louis, 1989, pp. 157-169.
Slager, et al., “Vaporization of Atherosclerotic Plaques by Spark Erosion,”J Am Coll Cardiol, 1985, 5:1382-6.
Bowden Russell W.
Magnin Paul A.
McNamara Edward I.
Solomon Rodney J.
Fontenot Nigel
Haynes and Boone LLP
Jung Unsu
Volcano Corporation
LandOfFree
Apparatus and methods for low-cost intravascular ultrasound... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and methods for low-cost intravascular ultrasound..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and methods for low-cost intravascular ultrasound... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2721310