US 12,144,778 B2
CPR compression device with cooling system and battery removal detection
Byron J. Reynolds, San Jose, CA (US); David T. Lawrence, San Jose, CA (US); and Ian Smith, San Jose, CA (US)
Assigned to ZOLL Circulation, Inc., San Jose, CA (US)
Filed by ZOLL CIRCULATION, INC., San Jose, CA (US)
Filed on Dec. 23, 2020, as Appl. No. 17/133,100.
Application 17/133,100 is a continuation of application No. 15/942,309, filed on Mar. 30, 2018, granted, now 10,905,629.
Prior Publication US 2021/0186806 A1, Jun. 24, 2021
Int. Cl. A61H 31/00 (2006.01); A61H 11/00 (2006.01)
CPC A61H 31/006 (2013.01) [A61H 31/005 (2013.01); A61H 31/007 (2013.01); A61H 2011/005 (2013.01); A61H 2205/084 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for performing chest compressions on a patient, said device comprising:
a drive spool operably connected to a motor shaft, said drive spool configured for attachment to a belt for compressing the chest of the patient;
a motor for rotating the drive spool, said motor comprising: the motor shaft, a first end having a first aperture, and a second end having a second aperture in communication with the first aperture to enable airflow through the motor, wherein the motor shaft is disposed at the second end;
a compression device housing for housing the motor and the drive spool, wherein said compression device housing is configured to support the patient during operation of the device, said compression device housing forms an enclosure substantially enclosing the motor, and said compression device housing comprises an intake aperture for intake of cooling airflow and an exhaust aperture for exhaust of cooling airflow; and
a fan disposed within the compression device housing proximate the second end of the motor and between the second end of the motor and the exhaust aperture of the compression device housing,
wherein the fan is arranged to draw air from the intake aperture of the compression device housing and through the first aperture of the motor and force air out of the second aperture of the motor and the exhaust aperture of the compression device housing, whereby the air flows through the motor,
wherein at least a portion of the second aperture of the motor and at least a portion of the exhaust aperture of the compression device housing are aligned along a lateral axis of the compression device housing.