Prolapse detection and tool dislodgement detection
US9675302B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2009 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Feb 14, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B34/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tool dislodgement detection apparatus includes an MPS outputting position and orientation (P&O) readings for determining tool motion. A control generates an alarm based on the tool motion and dislodgement criteria. The criteria includes whether the tool motion meets a condition based on the type of medical procedure or tool, the tool parking position, a patient characteristic (e.g., age, weight, gender) or a physician preference. The criteria includes when the correlation between the tool motion and the cardiac, respiration and patient motion changes abruptly. In a prolapse detection apparatus, guidewire tip P&O readings determine a tip motion vector. The control generates an alarm using the motion vector and predetermined criteria. The criteria include a substantial change in the tip orientation not accompanied by a corresponding position change and a change in the motion vector by about 180° accompanied by a corresponding position change no greater than a threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.