Temperature regulation system for automatic chest compression devices

• US 20050080363A1
• Filed: 10/14/2003
• Published: 04/14/2005
• Est. Priority Date: 10/14/2003
• Status: Active Grant

• Current Assignee: Zoll Circulation Incorporated (Asahi Kasei Corporation)
• Original Assignee: Revivant Corporation (Asahi Kasei Corporation)
• Inventors: Jensen, James O., Rappoport, Vladimir, Mastromattei, Robert
• Granted Patent: US 7,270,639 B2
• Time in Patent Office: Days
• US Class Current: 601/44
• CPC Class Codes: A61H 2201/018 By limiting the applied torque or force
• CPC Class Codes: A61H 2201/0214 cooled
• CPC Class Codes: A61H 2201/025 by direct air flow on the patient's body
• CPC Class Codes: A61H 2201/5007 computer controlled
• 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 31/006 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: Y10S 601/06 Artificial respiration conforming to shape of torso

Abstract

Devices and methods for cooling an electromechanical chest compression device. A blower or fan forces air through the device and a metal foil distributes heat. The temperature of the device and the patient is measured and the processor controls the operation of the device based on the measured temperature.

Claims

1. An electromechanical chest compression device comprising:

a housing;

a motor disposed in the housing;

a drive spool rotatably attached to the motor, wherein the motor is capable of rotating the drive spool;

a belt attached to the drive spool, said belt capable of extending at least partially around the chest of a patient, wherein rotation of the drive spool tightens the belt to compress the chest of the patient; and

a means for circulating air, said means disposed in the housing, said means operable to increase the amount of airflow within the housing, wherein the means for circulating air is chosen from the group consisting of a blower and a fan.

2. The device of claim 1 further comprising a vent disposed in the housing, said vent allowing air to flow between the inside of the housing and outside the housing.

3. The device of claim 1 wherein:

the housing comprises an anterior cover plate, a superior cover plate attached to the anterior cover plate and an inferior cover plate attached to the anterior cover plate;

said chest compression device further comprises a metal foil mounted to the inside surface of the anterior cover plate.

4. The device of claim 3 further comprising a layer of insulation disposed between the anterior cover plate and the metal foil.

5. The device of claim 3 further comprising a layer of insulation disposed on the inside surface of the anterior cover plate.

6. The device of claim 1 further comprising a rib disposed within the housing and oriented parallel to the motor.

7. The device of claim 6 wherein the rib is disposed to create a narrow space between the motor and the rib.

8. The device of claim 7 wherein the rib divides the device into at least two compartments, wherein the rib is attached to a component of the device such that the rib serves as a thermal barrier between compartments.

9. The device of claim 8 wherein the rib is further attached to the housing such that the rib prevents liquid from passing between compartments.

10. The device of claim 1 further comprising a temperature sensor thermally connected to the electro-mechanical chest compression device.

11. The device of claim 10 further comprising:

a processor disposed within the housing and operably connected to the temperature sensor and to the motor;

wherein the processor is programmed to monitor the temperature measured by the temperature sensor and to control the operation of the motor based on the temperature measured by the temperature sensor.

12. The device of claim 1 wherein the housing comprises a material having a low thermal conductivity.