US 12,245,983 B2
Cardio-pulmonary resuscitation device for compressing and decompressing the chest of a patient
Fred W. Chapman, Newcastle, WA (US); and Gregory T. Kavounas, Bellevue, WA (US)
Assigned to PHYSIO-CONTROL, INC., Redmond, WA (US)
Filed by PHYSIO-CONTROL, INC., Redmond, WA (US)
Filed on Jun. 15, 2020, as Appl. No. 16/902,027.
Application 15/892,374 is a division of application No. 14/273,593, filed on May 9, 2014, abandoned.
Application 16/902,027 is a continuation of application No. 15/892,374, filed on Feb. 8, 2018, granted, now 10,702,449.
Claims priority of provisional application 61/822,234, filed on May 10, 2013.
Prior Publication US 2020/0306133 A1, Oct. 1, 2020
Int. Cl. A61H 31/00 (2006.01)
CPC A61H 31/00 (2013.01) [A61H 31/005 (2013.01); A61H 31/006 (2013.01); A61H 31/007 (2013.01); A61H 2230/045 (2013.01); A61H 2230/065 (2013.01); A61H 2230/208 (2013.01); A61H 2230/305 (2013.01); A61H 2230/425 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A Cardio-Pulmonary Resuscitation (“CPR”) device for compressing and decompressing a chest of a patient that has a neutral position when the CPR device is neither compressing nor decompressing, the CPR device comprising:
a compression mechanism configured to pull the chest of the patient away from the neutral position; and
a driver configured to drive the compression mechanism to cause the compression mechanism to enter a first mode and pull the chest of the patient a first distance away from the neutral position during a first decompression for a first duration, to enter a second mode when the first duration has elapsed and pull the chest of the patient a second distance less than the first distance away from the neutral position during a second decompression for a second duration, and to enter a third mode when the second duration has elapsed and pull the chest a third distance greater than the first distance away from the neutral position during a third decompression, wherein the first mode, the second mode, and the third mode are sequential.