Piston-Based Chest Compression Device with Belt Drive

• US 20150057580A1
• Filed: 08/20/2013
• Published: 02/26/2015
• Est. Priority Date: 08/20/2013
• Status: Active Grant

• Current Assignee: Zoll Circulation Incorporated (Asahi Kasei Corporation)
• Original Assignee: Zoll Circulation Incorporated (Asahi Kasei Corporation)
• Inventors: Illindala, Uday Kiran V.
• Granted Patent: US 9,211,229 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 2201/1215 Rotary drive
• CPC Class Codes: A61H 2201/1246 by piston-cylinder systems
• CPC Class Codes: A61H 2201/1664 linear
• CPC Class Codes: A61H 2201/50 Control means thereof
• CPC Class Codes: A61H 2201/5064 Position sensors
• CPC Class Codes: A61H 2201/5071 Pressure sensors
• CPC Class Codes: A61H 2201/5079 Velocity sensors
• CPC Class Codes: A61H 2201/5092 Optical sensor
• 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

Abstract

A hybrid chest compression device includes a backboard with a motor and a drive spool housed within the backboard. There is also a piston support frame secured to the backboard forming a patient channel between the piston support frame and the backboard. There is a belt operably secured to the drive spool and enclosed within the backboard and the piston support frame and a piston operably housed within the piston support frame wherein motion of the belt actuates motion of the piston. Actuation of the motor results in cyclic rotation and counter-rotation of the motor and corresponding winding and unwinding of the belt on the drive spool to effectuate cyclic extension and retraction of the piston against the patient'"'"'s chest to perform mechanical cardiopulmonary resuscitation.

Claims

1. A device for performing mechanical cardiopulmonary resuscitation on a patient comprising:

a backboard;

a motor and a drive spool housed within the backboard, the motor is operably secured to the drive spool;

a piston support frame having two legs and a piston actuator housing, the piston support frame secured to the backboard forming a channel between the two legs, the backboard and the piston actuator housing;

a piston operably housed within the piston actuator housing;

a belt enclosed within the backboard and the piston support frame, the belt is operably secured to the drive spool;

wherein actuation of the motor results in cyclic rotation and counter-rotation of the motor and corresponding winding and unwinding of the belt on the drive spool to effectuate cyclic extension and retraction of the piston against the patient'"'"'s chest to perform mechanical cardiopulmonary resuscitation.

2. The device of claim 1 further comprising:

a controller to control actuation and operation of the motor.

3. The device of claim 2 further comprising:

a plurality of guide spindles in the backboard and the piston support frame for guiding the belt and forming a belt path through the backboard and the piston support frame.

4. The device of claim 1 further comprising:

a spring operably engaging the piston and urging the piston into a retracted position.