CPR compression device and method including a fluid filled bladder
First Claim
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1. A system for performing CPR on a patient, said system comprising:
- a chest compression means comprising a belt adapted to be disposed at least partially about the chest of the patient and a means for repetitively tightening the belt at a resuscitative rate, said means operably connected to the belt;
a bladder disposed between the chest compression means and the chest of the patient, and at least two dividers disposed within the bladder, such that the bladder is divided to form a left lateral section in fluid communication with a central section and a right lateral section in fluid communication with said central section, and wherein each section contains a pressure-transmitting medium, and the bladder is disposed relative to the belt during use between the belt and the chest of the patient and the central section is disposed over the sternum of the patient.
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Abstract
Improved automatic chest compression systems which use constricting belts, repeatedly inflating bladders, or reciprocating pistons to compress the chest. A bladder is placed between the chest and the particular mechanism used to compress the chest during CPR. The bladder maximizes the effectiveness of chest compressions.
61 Citations
27 Claims
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1. A system for performing CPR on a patient, said system comprising:
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a chest compression means comprising a belt adapted to be disposed at least partially about the chest of the patient and a means for repetitively tightening the belt at a resuscitative rate, said means operably connected to the belt; a bladder disposed between the chest compression means and the chest of the patient, and at least two dividers disposed within the bladder, such that the bladder is divided to form a left lateral section in fluid communication with a central section and a right lateral section in fluid communication with said central section, and wherein each section contains a pressure-transmitting medium, and the bladder is disposed relative to the belt during use between the belt and the chest of the patient and the central section is disposed over the sternum of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device for compressing the chest of a patient comprising:
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a base adapted for placement over the central region of a patient'"'"'s chest; an actuator connected to a belt configured to wrap around the patient'"'"'s chest; a force converter mounted on the base and coupled to the actuator and the belt, said force converter operable to convert forces applied downwardly on the actuator into tangential forces applied to the belt; and a fluid-filled bladder disposed between the base and the patient'"'"'s chest, and at least two dividers disposed within the bladder, such that the bladder is divided to form a left lateral section in fluid communication with a central section and a right lateral section in fluid communication with said central section. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A system for performing CPR on a patient, said system comprising:
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a chest compression means comprising a belt adapted to be disposed at least partially about the chest of the patient and a means for repetitively tightening the belt at a resuscitative rate, said means operably connected to the belt; a bladder disposed between the chest compression means and the chest of the patient, and at least two dividers disposed within the bladder, such that the bladder is divided to form a left lateral section in fluid communication with a central section and a right lateral section in fluid communication with said central section, and wherein each section contains a pressure-transmitting medium, and the bladder is disposed relative to the belt during use between the belt and the chest of the patient and the central section is disposed over the sternum of the patient; wherein the pressure-transmitting medium comprises an open-celled foam; wherein the bladder further comprises an aperture communicating from the interior of the bladder to the exterior of the bladder, and a valve controlling the aperture, wherein the valve is open when atmospheric pressure is about equal to the pressure inside the bladder and wherein the valve closes during a compression. - View Dependent Claims (24, 25, 26, 27)
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Specification