System and method for detecting perforations in a body cavity
US6554780B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2000 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Nov 10, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for detecting perforations in a body cavity. 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.