Automated CPR Chest Compression Device with Feedback from a Chest Compression Monitor

Abstract

A piston-based automated CPR chest compression device with accelerometer feedback.

1 . A method of providing CPR compressions to a patient, said method comprising:
 providing a chest compression device comprising a piston and a motor for driving the piston to impact the patient's chest at a resuscitative rate;   providing a compression monitor disposed in relation to the piston such that it experiences downward and upward acceleration of the chest caused by the chest compression device, said compression monitor comprising an accelerometer and processing means for determining, from an acceleration signal provided by the accelerometer, the depth of compression achieved by the chest compression device; and   operating the chest compression device while operating the compression monitor to provide feedback regarding the achieved compression depth to the chest compression device.   
     
     
         2 . The method of  claim 1 , further comprising the step of adjusting operation of the motor to drive the piston to achieve appropriate compression rate. 
     
     
         3 . The method of  claim 1 , further comprising the step of adjusting operation of the motor to drive the piston to achieve appropriate compression depth. 
     
     
         4 . The method of  claim 1 , further comprising the step of adjusting operation of the motor to drive the piston to achieve appropriate compression velocity. 
     
     
         5 . The method of  claim 1 , further comprising the step of adjusting operation of the motor to drive the piston to achieve appropriate compression acceleration. 
     
     
         6 . The method of  claim 1 , further comprising the step of adjusting operation of the motor to drive the piston to achieve appropriate compression hold time. 
     
     
         7 . The method of  claim 1 , further comprising the step of adjusting operation of the motor to drive the piston to achieve appropriate compression force. 
     
     
         8 . A method of providing CPR compressions to a patient, said method comprising:
 providing a chest compression device comprising a piston and means for driving the piston to impact the patient's chest at a resuscitative rate;   providing a compression monitor disposed in relation to the piston such that it experiences downward and upward acceleration of the chest caused by the chest compression device, said compression monitor comprising an accelerometer and processing means for determining, from an acceleration signal provided by the accelerometer, the depth of compression achieved by the chest compression device; and   operating the chest compression device while operating the compression monitor to provide feedback regarding the achieved compression depth to the chest compression device.   
     
     
         9 . The method of  claim 8 , further comprising the step of adjusting operation of the chest compression device to drive the piston to achieve appropriate compression rate. 
     
     
         10 . The method of  claim 8 , further comprising the step of adjusting operation of the chest compression device to drive the piston to achieve appropriate compression depth. 
     
     
         11 . The method of  claim 8 , further comprising the step of adjusting operation of the chest compression device to drive the piston to achieve appropriate compression velocity. 
     
     
         12 . The method of  claim 8 , further comprising the step of adjusting operation of the chest compression device to drive the piston to achieve appropriate compression acceleration. 
     
     
         13 . The method of  claim 8 , further comprising the step of adjusting operation of the chest compression device to drive the piston to achieve appropriate compression hold time. 
     
     
         14 . The method of  claim 8 , further comprising the step of adjusting operation of the chest compression device to drive the piston to achieve appropriate compression force. 
     
     
         15 . A method of providing CPR compressions to a patient, said method comprising:
 providing a chest compression device comprising a piston and a motor for driving the piston to impact the patient's chest at a resuscitative rate;   providing a compression monitor disposed in relation to the piston such that it experiences downward and upward acceleration of the chest caused by the chest compression device, said compression monitor operable to provide chest compression indication signals indicative of the depth of compressions achieved by the chest compression device; and   operating the chest compression device while operating the compression monitor to provide feedback regarding the achieved compression depth to the chest compression device.   
     
     
         16 . The method of  claim 15 , further comprising the step of adjusting operation of the motor to drive the piston to achieve appropriate compression rate. 
     
     
         17 . The method of  claim 15 , further comprising the step of adjusting operation of the motor to drive the piston to achieve appropriate compression depth. 
     
     
         18 . The method of  claim 15 , further comprising the step of adjusting operation of the motor to drive the piston to achieve appropriate compression velocity. 
     
     
         19 . The method of  claim 15 , further comprising the step of adjusting operation of the motor to drive the piston to achieve appropriate compression acceleration. 
     
     
         20 . The method of  claim 15 , further comprising the step of adjusting operation of the motor to drive the piston to achieve appropriate compression hold time. 
     
     
         21 . The method of  claim 15 , further comprising the step of adjusting operation of the motor to drive the piston to achieve appropriate compression force.