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US4949718B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Intrauterine cauterizing apparatus

Assignee: GYNELAB PRODUCTS A CORP OF
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Filing: 1988-09-09
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Granted: 1998-11-10
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Expires: 2008-09-09
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Abstract

Abstract A method and apparatus for effecting necrosis of a tissue lining of a mammalian body cavity, particularly a uterine endometrium (27), by introducing an applicator comprising a distendable bladder (5) connected to a catheter into the uterus, distending the bladder (5) by introducing a non-toxic fluid under pressure, heating the fluid by means (44) located internal to the bladder (5) to a temperature of 190 DEG to 215 DEG F and preferably 210 DEG F for a period of 4 to 12 minutes and preferably 6 minutes and regulating said apparatus by means (30) located external to the uterus, thereby cauterizing substantially the entirety of the tissue lining, particularly the endometrium (27). <IMAGE>

Inventors

  • 👤 Robert S Neuwirth
  • 👤 Lee R Bolduc

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 00:38
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/08; A61F; A61F7/00; A61F7/12; A61F7/123; A61B17/00; A61B17/42; A61B2017/00017; A61B2017/00022; A61B2017/00084; A61B2017/00132; A61B2017/00535; A61B2017/00539; A61B2017/4216; A61B2018/00315; A61B2018/00547; A61B2018/00559; A61B2018/00571; A61B2018/00577; A61B2018/044; A61B2018/046; A61B90/00; A61B90/06; A61B2090/062; A61B2090/064; A61B90/39; A61B2090/3937; A61F2007/0054

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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) 2001-11-09 2002-05-11 2002-11-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2005-11-09 2006-05-11 2006-11-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2009-11-09 2010-05-11 2010-11-10 $7700.00 Window Closed / Lapsed

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