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US6858026B2 Expired / Lapsed US ⏱️ 0.0 years remaining

Methods and devices for ablation

Assignee: St Jude Medical Atrial Fibrillation Division Inc
•
Filing: 2001-12-05
•
Granted: 2005-02-22
•
Expires: 2021-12-05
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Abstract

Abstract An ablating device has a cover which holds an interface material such as a gel. The cover contains the interface material during initial placement of the device. The ablating device may also have a removable tip or a membrane filled with fluid. In still another aspect, the ablating device may be submerged in liquid during operation.

Inventors

  • 👤 John W. Sliwa, Jr.
  • 👤 Matthias Vaska
  • 👤 Jonathan L. Podmore
  • 👤 Roxanne L. Richman
  • 👤 Scott C. Anderson
  • 👤 Gerard Champsaur
  • 👤 John E. Crowe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 20:54
CPC Classifications
A; A61; A61B; A61B18/00; A61B17/00; A61B17/22; A61B17/22004; A61B17/22012; A61B17/2202; A61B17/225; A61B17/2251; A61B18/02; A61B18/04; A61B18/12; A61B18/14; A61B18/1402; A61B18/1482; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/06; A61N7/00; A61N7/02; A61B18/148; A61B18/1492; A61B18/18; A61B18/20; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2017/00252; A61B2017/00292; A61B2017/003; A61B2017/22072; A61B2017/22074; A61B2017/22077; A61B2017/2253; A61B17/34; A61B17/3417; A61B2017/3419; A61B2018/00005; A61B2018/00011; A61B2018/00023; A61B2018/00053; A61B2018/0016; A61B2018/00214; A61B2018/0022; A61B2018/00232; A61B2018/0025; A61B2018/00261; A61B2018/00273; A61B2018/00279; A61B2018/00285; A61B2018/00291; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00363; A61B2018/00392; A61B2018/00571; A61B2018/00577; A61B2018/00636; A61B2018/00642; A61B2018/00654; A61B2018/00773; A61B2018/00791; A61B2018/00797; A61B2018/00839; A61B2018/00898; A61B2018/00982; A61B18/1206; A61B2018/1213; A61B2018/1405; A61B2018/142; A61B2018/1467; A61B2018/147; A61B2018/1472; A61B90/00; A61B90/36; A61B90/361; A61B2090/3614; A61B90/37; A61B2090/378; A61B2090/3782; A61B90/39; A61B2090/3937; A61B2090/395; A61B2218/00; A61B2218/001; A61B2218/002; A61B2218/007; A61B34/00; A61B34/20; A61B5/00; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/283; A61B5/287; A61N1/05; A61N1/056; A61N1/18; A61N1/32; A61N1/36; A61N1/362; A61N1/3629

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 101 words
A system for ablating tissue with ultrasound energy, comprising: a plurality of ablating elements which each emit focused ultrasound energy; and a control system coupled to the ablating elements, the control system controlling activation of the ablating elements and programmed to automatically change the frequency of the ablating elements when ablating the same tissue structure, each ablating element being activated to ablate tissue at a first frequency for a first plurality of time periods and to ablate the same tissue at a second frequency which is a predetermined frequency different than the first frequency, for a second plurality of time periods.
Claim 2
Independent Claim 101 words
A system for ablating tissue with ultrasound energy, comprising: a plurality of ablating elements which each emit focused ultrasound energy; and a control system coupled to the ablating elements, the control system controlling activation of the ablating elements and programmed to automatically change the frequency of the ablating elements when ablating the same tissue structure, each ablating element being activated to ablate tissue at a first frequency for a first plurality of time periods and to ablate the same tissue at a second frequency which is a predetermined frequency different than the first frequency, for a second plurality of time periods.
Claim 3
Dependent Claim 27 words
The system of claim 1 , wherein: the control system is adapted to move a focus of the ultrasound energy relative to the tissue structure being ablated.
Claim 4
Dependent Claim 24 words
The system of claim 2 , wherein: the control system moves the focus closer to a near surface of the tissue structure being ablated.
Claim 5
Dependent Claim 28 words
The method of claim 1 , wherein: the control system includes means for assessing the adequacy of contact between the ablating elements and the tissue structure being ablated.
Claim 6
Dependent Claim 18 words
The method of claim 2 , wherein: the assessing means is carried out by measuring an electrical impedance.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2008-02-22 2008-08-23 2009-02-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2012-02-22 2012-08-23 2013-02-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2016-02-22 2016-08-23 2017-02-22 $7700.00 Window Closed / Lapsed

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