Title:
OPTICAL COHERENCE TOMOGRAPHY AND PRESSURE BASED SYSTEMS AND METHODS
Document Type and Number:
Japanese Patent JP2017170159
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide methods and devices for improving pressure measurements that do not cause unwanted pressure drops or occlude the lumen being evaluated or that otherwise reduce or correct errors associated with intra-luminal pressure readings.SOLUTION: The invention relates to methods, apparatus, and systems suitable for determining a fractional flow reserve (FFR) and various modifications thereof, also relates to a method and apparatus for obtaining a corrected FFR in a vessel 12 having a stenosis 14, and also relates to an apparatus for measuring a corrected FFR of a vessel having a stenosis. The apparatus includes: a probe comprising an optical coherence tomography assembly and a pressure assembly; and a processor in communication with the optical coherence tomography assembly and the pressure assembly. The pressure assembly measures pressure values in predetermined positions of the vessel and communicates them to the processor. A dual guidewire is used to reduce the interference in the pressure measurement.SELECTED DRAWING: Figure 1A
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Inventors:
PETROFF CHRISTOPHER
JOSEPH SCHMITT
JOSEPH SCHMITT
Application Number:
JP2017091615A
Publication Date:
September 28, 2017
Filing Date:
May 02, 2017
Export Citation:
Assignee:
LIGHTLAB IMAGING INC
International Classes:
A61B5/0215; A61B1/00; A61B5/02; A61B5/022
Domestic Patent References:
| JP2007083057A | 2007-04-05 | |||
| JPH01172801U | 1989-12-07 | |||
| JP2007167645A | 2007-07-05 |
Foreign References:
| WO2011008822A2 | 2011-01-20 | |||
| US20110071404A1 | 2011-03-24 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki