US5105808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intrauterine cauterizing method
Assignee: Gynelab Products
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Filing: 1990-08-09
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Granted: 1992-04-21
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Expires: 2010-08-09
Abstract
Abstract A method and apparatus for effecting necrosis of a tissue lining of a mammalian body cavity, particularly a uterine endometrium, by introducing an applicator comprising a distendable bladder connected to a catheter into the uterus, distending the bladder by introducing a non-toxic fluid under pressure, heating the fluid by means located internal to the bladder to a temperature of 190˜ to 215˜F. and preferably 210˜F. for a period of 4 to 12 minutes and preferably 6 minutes and regulating said apparatus by means located external to the uterus, thereby cauterizing substantially the entirety of the tissue lining, particularly the endometrium.
Inventors
- 👤 Robert S. Neuwirth
- 👤 Lee R. Bolduc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:12
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
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
160 words
A method for effecting cauterization necrosis of the tissue lining of a mammalian body cavity comprising the steps of: (a) inserting a distendable bladder into the body cavity; (b) inflating said distendable bladder to a predetermined pressure with a fluid so that said distendable bladder is in contact with substantially all of the tissue lining for which necrosis is desired; (c) heating said fluid by means of a heating element positioned internal to said distendable bladder; (d) controlling the temperature and pressure of said fluid by control means connected to said distendable bladder; and (e) maintaining the exterior of said bladder so inflated with said fluid at a temperature of about 190° F. to about 215° F. and preferably about 210° F. for a period of time of from about 4 to about 12 minutes, and preferably about 6 minutes to effect cauterization necrosis of substantially all of the tissue lining of the body cavity for which necrosis is desired.
Claim 2
Independent Claim
160 words
A method for effecting cauterization necrosis of the tissue lining of a mammalian body cavity comprising the steps of: (a) inserting a distendable bladder into the body cavity; (b) inflating said distendable bladder to a predetermined pressure with a fluid so that said distendable bladder is in contact with substantially all of the tissue lining for which necrosis is desired; (c) heating said fluid by means of a heating element positioned internal to said distendable bladder; (d) controlling the temperature and pressure of said fluid by control means connected to said distendable bladder; and (e) maintaining the exterior of said bladder so inflated with said fluid at a temperature of about 190° F. to about 215° F. and preferably about 210° F. for a period of time of from about 4 to about 12 minutes, and preferably about 6 minutes to effect cauterization necrosis of substantially all of the tissue lining of the body cavity for which necrosis is desired.
Claim 3
Independent Claim
111 words
A method for effecting cauterization necrosis of an uterine endometrium comprising the steps of: (a) inserting a distendable bladder into the uterus; (b) inflating said distendable bladder to a predetermined pressure with a fluid so that said distendable bladder is in contact with substantially all of the endometrium; (c) heating said fluid by means of a heating element positioned internal to said distendable bladder; (d) regulating the temperature and pressure of said fluid by control means connected to said distendable bladder; and (e) maintaining said bladder so inflated with said fluid at a temperature for a period of time sufficient to effect cauterization necrosis of substantially all of the uterine endometrium.
Claim 4
Independent Claim
111 words
A method for effecting cauterization necrosis of an uterine endometrium comprising the steps of: (a) inserting a distendable bladder into the uterus; (b) inflating said distendable bladder to a predetermined pressure with a fluid so that said distendable bladder is in contact with substantially all of the endometrium; (c) heating said fluid by means of a heating element positioned internal to said distendable bladder; (d) regulating the temperature and pressure of said fluid by control means connected to said distendable bladder; and (e) maintaining said bladder so inflated with said fluid at a temperature for a period of time sufficient to effect cauterization necrosis of substantially all of the uterine endometrium.
Claim 5
Dependent Claim
48 words
A method as described in claim 2, wherein the exterior of said distendable bladder in contact with the endometrium is maintained at a temperature of 190˜ to 215˜F. and preferably about 210˜F. for a period of time of from 4 to 12 minutes, and preferably around 6 minutes.
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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) | 1995-04-21 | 1995-10-21 | 1996-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-21 | 1999-10-21 | 2000-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-21 | 2003-10-21 | 2004-04-21 | $7700.00 | Window Closed / Lapsed |