Title:
患者における全身灌流不全を評価するシステム及び方法
Document Type and Number:
Japanese Patent JP2007525253
Kind Code:
A
Abstract:
A device is provided for assessing impairment of blood circulation in a patient, such as that in perfusion failure, by measurement of blood flow adjacent a mucosal surface accessible by a mouth or nose and connecting with the gastrointestinal tract or upper respiratory/digestive tract of a patient. The device includes a blood-flow sensor adapted to be positioned adjacent a mucosal surface with a patient's body and measuring blood flow in adjacent tissue and a PCO.sub.2 sensor adapted to be positioned adjacent the mucosal surface and measuring PCO.sub.2. In addition a pH sensor may be used in combination with the blood flow determination. A method of detecting perfusion failure is also disclosed. The method includes utilizing blood-flow measurements in conjunction with a surface perfusion pressure index and/or an optical plethysmography index to more accurately assess perfusion failure. These measurements may also be supplement by taking measurements of pH, sublingual PCO.sub.2, and Sa O.sub.2. The invention affords rapid measurement and detection of perfusion failure.
Inventors:
Kimball, Victor, Yi
Application Number:
JP2006528168A
Publication Date:
September 06, 2007
Filing Date:
September 23, 2004
Export Citation:
Assignee:
Optical Sensors Incorporated
International Classes:
A61B5/0285; A61B5/00; A61B5/02; A61B5/022; A61B5/0245; A61B5/026; A61B5/1459; A61B
Domestic Patent References:
| JP2002540831A | 2002-12-03 |
Attorney, Agent or Firm:
Kunihiko Ohashi