Global Patent Index - EP 0512987 A4

EP 0512987 A4 19930224 - ENHANCED ARTERIAL OXYGEN SATURATION DETERMINATION AND ARTERIAL BLOOD PRESSURE MONITORING

Title (en)

ENHANCED ARTERIAL OXYGEN SATURATION DETERMINATION AND ARTERIAL BLOOD PRESSURE MONITORING

Publication

EP 0512987 A4 19930224 (EN)

Application

EP 90908025 A 19900130

Priority

  • CA 2074956 A 19900130
  • US 9000518 W 19900130

Abstract (en)

[origin: WO9111137A1] A noninvasive system and method for monitoring arterial oxygen saturation levels and blood pressure. The apparatus includes a read LED (54) and an infrared LED (56) which are positioned to direct their respective light beams into, or reflected by a patient's body part. A phototransducer device (64) is positioned to receive the light beams (608, 62) which are transmitted through the body part. A pressure cuff (34) surrounds the body part (36) and the LEDs (54, 56). During calibration periods, pressure is applied to the body part (36) and the systolic and mean blood pressures and the arterial oxygen saturation level are determined. The pressure is then released from the body part (36) and another arterial oxygen saturation level is determined and the difference between the two oxygen saturation levels is used as a calibration factor during later monitoring periods to remove the effect of non-arterial oxygen saturation levels on the values obtained during the subsequent monitoring period.

IPC 1-7

A61B 5/02

IPC 8 full level

A61B 5/00 (2006.01); A61B 5/0225 (2006.01)

CPC (source: EP)

A61B 5/02225 (2013.01); A61B 5/02255 (2013.01); A61B 5/14552 (2013.01); A61B 5/6814 (2013.01); A61B 5/6815 (2013.01); A61B 5/6825 (2013.01); A61B 5/6826 (2013.01); A61B 5/6829 (2013.01); A61B 5/6838 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 9111137 A1 19910808; EP 0512987 A1 19921119; EP 0512987 A4 19930224

DOCDB simple family (application)

US 9000518 W 19900130; EP 90908025 A 19900130