Cardiopulmonary resuscitation monitoring apparatus

• US 8,744,542 B2
• Filed: 03/09/2012
• Issued: 06/03/2014
• Est. Priority Date: 03/25/2011
• Status: Active Grant

• Current Assignee: Nihon Kohden Corporation
• Original Assignee: Nihon Kohden Corporation
• Inventors: Ukawa, Teiji
• Primary Examiner(s): WINAKUR, ERIC FRANK
• Application Number:
  US13/416,226
• Publication Number:
  US 20120245442A1
• Time in Patent Office: 816 Days
• Field of Search: 600/310, 600/322, 600/323, 600/324, 601/41
• US Class Current: 600/323
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/6823 Trunk, e.g., chest, back, abdomen, hip
• CPC Class Codes: A61H 2201/5064 Position sensors
• CPC Class Codes: A61H 2201/5071 Pressure sensors
• CPC Class Codes: A61H 2201/5079 Velocity sensors
• CPC Class Codes: A61H 2201/5084 Acceleration sensors
• CPC Class Codes: A61H 2230/208 used as a control parameter for the apparatus
• CPC Class Codes: A61H 31/005 with feedback for the user
• CPC Class Codes: G09B 23/288 for artificial respiration or heart massage

Abstract

A cardiopulmonary resuscitation monitoring apparatus includes: a detecting unit configured to obtain a detection signal of a timing of chest compression during execution of cardiopulmonary resuscitation; a pulse oximeter configured to detect a change of a blood volume at the timing of the chest compression based on the detection signal, and configured to obtain an oxygen saturation from the change of the blood volume; an evaluating unit configured to perform evaluation related to the cardiopulmonary resuscitation based on the oxygen saturation; and an outputting unit configured to perform an outputting operation in accordance with a result of the evaluation.

Claims

1. A cardiopulmonary resuscitation monitoring apparatus comprising:

a detecting unit configured to obtain a timing of a chest compression period from a detection signal during execution of cardiopulmonary resuscitation;

a pulse oximeter configured to detect a change of a blood volume over the chest compression period based on the timing, and configured to obtain an oxygen saturation from the change of the blood volume;

an evaluating unit configured to perform evaluation related to the cardiopulmonary resuscitation based on the oxygen saturation; and

an outputting unit configured to perform an outputting operation in accordance with a result of the evaluation.

2. The cardiopulmonary resuscitation monitoring apparatus according to claim 1, wherein the detecting unit comprises a displacement sensor, a speed sensor, an acceleration sensor, or a pressure sensor.

3. The cardiopulmonary resuscitation monitoring apparatus according to claim 1, wherein:

a light emitting section and a light receiving section of the pulse oximeter constitute the detecting unit; and

the detecting unit is adapted to be placed on a surface of a living body.

4. The cardiopulmonary resuscitation monitoring apparatus according to claim 1, wherein the detecting unit notifies the timing of chest compression period to the pulse oximeter.