Chest Compression Belt with Belt Position Monitoring System

• US 20140343466A1
• Filed: 08/05/2014
• Published: 11/20/2014
• 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.
• Granted Patent: US 9,925,114 B2
• Time in Patent Office: Days
• US Class Current: 601/41
• 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 the thorax of the patient;

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

a support structure spatially fixed relative to the housing of the compression device;

an array of distance sensors disposed on the support structure, said distance sensors operable to output distance data corresponding to the distance between the distance sensors and the compression belt;

a control system programmed to receive the distance data and compute the location of the compression belt relative to the support structure.

2. The systems of claim 1, wherein the control system is further programmed to determine, on the basis of the location of the compression belt, the inferior/superior location of the belt relative to the housing or support structure.

3. The system of claim 2, wherein the control system is further programmed to compare the determined inferior/superior location of the belt over the course of multiple constrictions of the compression belt, and calculate any inferior/superior movement of the compression belt over the patient'"'"'s chest.

4. The system of claim 3, wherein the control system is further programmed to compare the calculated inferior/superior movement of the compression belt to a predetermined value, and suspend compressions when the inferior/superior movement of the compression belt exceeds the predetermined value.

5. The system of claim 3, wherein the control system is further programmed to compare the calculated inferior/superior movement of the compression belt to a predetermined value, and provide prompts to a CPR provider to indicate the fact that slippage has been detected.

6. The system of claim 3, wherein the control system is further programmed to compare the calculated inferior/superior movement of the compression belt to a predetermined value, and adjust depth of compression provided by the compression belt to account for the slippage while still providing compression.

7. The system of claim 1 wherein the distance sensors comprise ultrasound sensors.

8. The system of claim 1 wherein the distance sensors comprise optical sensors.

9. The system of claim 1 wherein the distance sensors comprise magnetic sensors.

10. The system of claim 1 wherein the distance sensors comprise RFID sensors.

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

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

a support structure disposed in fixed relationship to the thorax of the patient;

a plurality of distance sensors disposed on the system, with an plurality of first components of the distance sensors disposed on the support structure and a plurality of second components disposed on the compression belt, said distance sensors operable to output distance data corresponding to the distance between the first components and the second components;

a control system programmed to receive the distance data and compute the location of the compression belt relative to the support structure.

12. The system of claim 11, further comprising:

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

wherein

the support structure is sized and dimensioned to fit over the chest of the patient, over the compression belt, and spatially fixed relative to the housing of the compression device.

13. The systems of claim 12, wherein the control system is further programmed to determine, on the basis of the location of the compression belt, the inferior/superior location of the belt relative to the housing or support structure.

14. The system of claim 13, wherein the control system is further programmed to compare the determined inferior/superior location of the belt over the course of multiple constrictions of the compression belt, and calculate any inferior/superior movement of the compression belt over the patient'"'"'s chest.

15. The system of claim 14, wherein the control system is further programmed to compare the calculated inferior/superior movement of the compression belt to a predetermined value, and suspend compressions when the inferior/superior movement of the compression belt exceeds the predetermined value.

16. The system of claim 14, wherein the control system is further programmed to compare the calculated inferior/superior movement of the compression belt to a predetermined value, and provide prompts to a CPR provider to indicate the fact that slippage has been detected.

17. The system of claim 14, wherein the control system is further programmed to compare the calculated inferior/superior movement of the compression belt to a predetermined value, and adjust depth of compression provided by the compression belt to account for the slippage while still providing compression.

18. The system of claim 11 wherein the distance sensors comprise ultrasound sensors.

19. The system of claim 11 wherein the distance sensors comprise optical sensors.

20. The system of claim 11 wherein the distance sensors comprise magnetic sensors.

21. The system of claim 11 wherein the distance sensors comprise RFID sensors.