Automated chest compression device
First Claim
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1. A device for compressing a chest of a patient comprising:
- a platform for placement under a thorax of the patient;
a compression belt adapted to extend over an anterior chest wall of the patient;
a motor operably connected to the compression belt through a drive train, said motor capable of operating the drive train repeatedly to cause the compression belt to tighten about the thorax of the patient and loosen about the thorax of the patient; and
a control system configured to control operation of the motor to tighten the compression belt to a tightened position and to loosen the compression belt from the tightened position to a slack take-up position in repeated cycles of compression about the thorax of the patient, whereinsaid control system is further configured to pre-tension the compression belt, prior to performing the repeated cycles of compression, by operating the motor to loosen the compression belt, and then operating the motor to tighten the compression belt until the compression belt is tightened to the slack take-up position.
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Abstract
A device for compressing the chest of a cardiac arrest victim.
247 Citations
16 Claims
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1. A device for compressing a chest of a patient comprising:
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a platform for placement under a thorax of the patient; a compression belt adapted to extend over an anterior chest wall of the patient; a motor operably connected to the compression belt through a drive train, said motor capable of operating the drive train repeatedly to cause the compression belt to tighten about the thorax of the patient and loosen about the thorax of the patient; and a control system configured to control operation of the motor to tighten the compression belt to a tightened position and to loosen the compression belt from the tightened position to a slack take-up position in repeated cycles of compression about the thorax of the patient, wherein said control system is further configured to pre-tension the compression belt, prior to performing the repeated cycles of compression, by operating the motor to loosen the compression belt, and then operating the motor to tighten the compression belt until the compression belt is tightened to the slack take-up position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A device for compressing a chest of a patient comprising:
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a platform for placement under a thorax of the patient; a compression belt adapted to extend over an anterior chest wall of the patient; a motor operably connected to the compression belt; and a control system for controlling operation of the motor to repeatedly tighten and loosen the compression belt about the thorax of the patient, the control system being configured to a) perform a pre-tensioning routine to pre-tension the compression belt to a slack take-up position, the pre-tensioning routine comprising i) operating the motor to tighten the compression belt while monitoring an indicator of tightness on the compression belt, ii) determining if the indicator is greater than a predetermined threshold, wherein, if the indicator is greater than the predetermined threshold, the control system is configured to operate the motor to loosen the compression belt, and iii) after step ii), operating the motor to tighten the compression belt until the compression belt is tightened to the slack take-up position, and b) after performing the pre-tensioning routine, operating the motor to perform repeated cycles of compression comprising tightening the compression belt to a tightened position and loosening the compression belt from the tightened position to the slack take-up position. - View Dependent Claims (15, 16)
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Specification