Method and apparatus for mapping a chamber of a heart
US6368285B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2000 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Aug 18, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for intracardially mapping a condition such as an electrical or mechanical property of a chamber of a heart uses a catheter having a distal tip and at least one condition sensor contained therein or proximate thereto. The at least one sensor is capable of sensing condition information in the chamber and provides the three-dimensional position of the catheter tip in a positional frame of reference. The method includes the steps of acquiring first and second images of the chamber. The images are acquired from different projections and contain topological information of the chamber. The chamber images are registered with the positional frame of reference. The catheter distal tip is advanced into the catheter and is navigated to acquisition points under the guidance of topological information contained in or derived from the images. Condition and position information are acquired at each of the acquisition points, the points being sufficient in number and spacing to permit the generation of a map of the condition in the chamber. The topological information used to guide the navigation of the catheter is preferably a three-dimensional reconstruction of the chamber derived from …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.