Chest compression belt with belt position monitoring system

• US 8,795,209 B2
• Filed: 05/31/2013
• Issued: 08/05/2014
• Est. Priority Date: 06/01/2012
• Status: Active Grant

• Current Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Original Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Inventors: Herken, Ulrich R., Freeman, Gary A.
• Primary Examiner(s): Thanh, Quang D
• Application Number:
  US13/907,621
• Publication Number:
  US 20130324894A1
• Time in Patent Office: 431 Days
• Field of Search: 601 41- 44, 601/107, 601/108, 600/21, 600/22, 128/870
• US Class Current: 601/44
• CPC Class Codes: A61H 2011/005 with belt or strap expanding and contracting around an encircled body part
• CPC Class Codes: A61H 2031/002 fixed on the chest by adhesives
• CPC Class Codes: A61H 2031/003 with alternated thorax decompression due to lateral compression
• CPC Class Codes: A61H 2201/0161 Size reducing arrangements when not in use, for stowing or transport
• CPC Class Codes: A61H 2201/0173 Means for preventing injuries
• CPC Class Codes: A61H 2201/0184 by raising an alarm
• CPC Class Codes: A61H 2201/1215 Rotary drive
• CPC Class Codes: A61H 2201/1664 linear
• CPC Class Codes: A61H 2201/5007 computer controlled
• CPC Class Codes: A61H 2201/5043 Displays
• CPC Class Codes: A61H 2201/5046 Touch screens
• CPC Class Codes: A61H 2201/5048 Audio interfaces, e.g. voice or music controlled
• CPC Class Codes: A61H 2201/5058 Sensors or detectors
• CPC Class Codes: A61H 2201/5064 Position sensors
• CPC Class Codes: A61H 2201/5084 Acceleration sensors
• CPC Class Codes: A61H 2201/5092 Optical sensor
• CPC Class Codes: A61H 2201/5097 wireless
• CPC Class Codes: A61H 2205/083 Abdomen
• CPC Class Codes: A61H 2230/04 Heartbeat characteristics, e.g. E.G.C., blood pressure modulation
• CPC Class Codes: A61H 31/00 Artificial respiration or heart stimulation, e.g. heart massage artificial respiration by treatment with gas or air, e.g. mouth-to-mouth respiration A61M16/00; applying electric currents by contact electrodes for stimulation, e.g. heart pace-makers A61N1/36 ; teaching or training models, demonstration models for medical purposes G09B23/288
• CPC Class Codes: A61H 31/005 : with feedback for the user
• CPC Class Codes: A61H 31/006 : Power driven
• CPC Class Codes: A61H 31/008 : Supine patient supports or bases, e.g. improving air-way access to the lungs
• CPC Class Codes: A61N 1/0492 : Patch electrodes A61N1/0412, A61N1/0428 take precedence

Abstract

An automated chest compression device for performing CPR, with distance sensors disposed on a compressing mechanism and on a structure fixed relative to the CPR patient, for determining inferior/superior movement of the compressing mechanism over the course of multiple compressions.

Claims

1. A system for performing CPR on a patient comprising:

a housing providing a platform adapted to be disposed under a thorax of the patient;

a compression belt and means for constricting the belt at a resuscitative rate to apply compression to a chest of the patient;

a control system for controlling operation of the compression belt;

a plurality of accelerometers disposed on the belt, said accelerometers operable to output acceleration data corresponding to an anterior/posterior movement of the compression belt, with at least one accelerometer disposed on an inferior portion of the belt over the chest of the patient, and a second accelerometer disposed on a superior portion of the belt over the chest of the patient;

wherein the control system is programmed to receive the acceleration data and determine whether a downward motion of the belt is uniform along an inferior/superior axis of the patient;

said control system further programmed to alert an operator of the system when the downward motion of the belt is non-uniform to a first extent, and suspend compression of the compression belt when the motion of the belt is non-uniform to a second extent larger than the first extent.