US6872183B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for detecting perforations in a body cavity
Assignee: CYTEC SURGICAL PRODUCTS LLC
•
Filing: 2004-05-24
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Granted: 2005-03-29
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Expires: 2024-05-24
Abstract
Abstract A system and method for detecting perforations in a body cavity. In accordance with the method of the invention, a fluid (liquid or gas) is delivered into a body cavity to slightly pressurize the cavity. A pressure sensing system monitors the pressure within the cavity for a predetermined test period. If cavity pressure is not substantially sustained during the test period, the physician is alerted to further assess the cavity for perforations before initiating treatment within the cavity. In a preferred form of the system, a medical treatment system such as an RF ablation system is provided with perforation detection functionality. The system preferably includes a pre-test and post-test lockout system. The lockout system prevents RF power delivery unless, during a predetermined test period, the pressure sensing system determines that no perforation exists, or unless a previously performed perforation detection procedure determined a perforation was present but the lockout system was subsequently overridden by the physician.
Inventors
- 👤 Russell M. Sampson
- 👤 Mike O'Hara
- 👤 Csaba Truckai
- 👤 Dean T. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:45
CPC Classifications
A; A61; A61B; A61B18/00; A61B17/00; A61B17/00234; A61B2017/00292; A61B2017/00535; A61B2017/00557; A61B90/00; A61B90/06; A61B2090/064
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
49 words
A method of ablating a uterus, comprising the steps of: inserting an ablation device into a uterus; flowing an inflation medium into the uterus; monitoring for the presence of a perforation in the uterus using a pressure sensor; and treating the interior of the uterus using the ablation device.
Claim 2
Independent Claim
49 words
A method of ablating a uterus, comprising the steps of: inserting an ablation device into a uterus; flowing an inflation medium into the uterus; monitoring for the presence of a perforation in the uterus using a pressure sensor; and treating the interior of the uterus using the ablation device.
Claim 3
Dependent Claim
17 words
The method of claim 1 , wherein the treating step includes delivering electrical energy to the tissue.
Claim 4
Dependent Claim
13 words
The method of claim 2 , wherein the electrical energy is RF energy.
Claim 5
Dependent Claim
17 words
The method of claim 1 , wherein the treating step includes delivering thermal energy to the tissue.
Claim 6
Dependent Claim
40 words
The method of claim 1 , wherein the flowing step includes: passing an inflation medium through the ablation device and into the uterus; and the monitoring step includes monitoring a pressure within the uterus for a predetermined amount of time.
Claim 7
Dependent Claim
34 words
The method of claim 1 , further including the step of: if a perforation is detected in the monitoring step, providing feedback alerting a user to the presence of a preforation in the uterus.
Claim 8
Dependent Claim
26 words
The method of claim 1 , further including the step of preventing performance of the treating step until after the monitoring step has been carried out.
Claim 9
Dependent Claim
51 words
The method of claim 1 , further including the steps of: suspending performance of the treating step if a perforation is detected in the monitoring step; detecting an override signal from a user input device; and permitting treatment of the uterus using the ablation device following detection of the override signal.
Claim 10
Independent Claim
67 words
A method of detecting a perforation in a uterus, comprising the steps of: passing an inflation medium into the uterus; monitoring for the presence of a perforation in the uterus using a pressure sensor; if no perforation is detected during the monitoring step, permitting ablation of the uterus using an ablation device; and if a perforation is detected during the monitoring step, preventing ablation of the uterus.
Claim 11
Independent Claim
67 words
A method of detecting a perforation in a uterus, comprising the steps of: passing an inflation medium into the uterus; monitoring for the presence of a perforation in the uterus using a pressure sensor; if no perforation is detected during the monitoring step, permitting ablation of the uterus using an ablation device; and if a perforation is detected during the monitoring step, preventing ablation of the uterus.
Claim 12
Dependent Claim
45 words
The method of claim 9 , further including the step of: if a perforation is detected during the monitoring step, detecting an override signal from a user input device and permitting treatment of the uterus using the ablation device following detection of the override signal.
Claim 13
Dependent Claim
36 words
The method of claim 9 , further including the step of: if a perforation is detected during the monitoring step, activating a notification signal alerting the user to the presence of a perforation in the uterus.
Claim 14
Dependent Claim
21 words
The method of claim 9 , wherein the inflation medium is introduced using a medical device separate from the ablation device.
Claim 15
Dependent Claim
16 words
The method of claim 9 , wherein the inflation medium is introduced using the ablation device.
Claim 16
Dependent Claim
15 words
The method of claim 9 , wherein the ablation device is an RF ablation device.
Claim 17
Dependent Claim
15 words
The method of claim 9 , wherein the ablation device is a thermal ablation device.
References Cited (Backward Citations)
US4611602A
Cited
US4971034A
Cited
US4735603A
Cited
EP0278217A1
Cited
US5098375A
Cited
US5084044A
Cited
US5152745A
Cited
US5191898A
Cited
US5360396A
Cited
DE4306629A1
Cited
US5433216A
Cited
US5439441A
Cited
US5800381A
Cited
US6179835B1
Cited
US5891136A
Cited
US5769880A
Cited
US5951497A
Cited
US5891134A
Cited
US6057689A
Cited
US6159160A
Cited
US6066132A
Cited
US6629951B2
Cited
US6692494B1
Cited
US6554780B1
Cited
US6743184B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-03-28 | 2008-09-27 | 2009-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-03-28 | 2012-09-27 | 2013-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-03-28 | 2016-09-27 | 2017-03-29 | $7700.00 | Window Closed / Lapsed |