Systems and methods to increase survival with favorable neurological function after cardiac arrest
First Claim
1. A system to increase survival with favorable neurological function after cardiac arrest, the system comprising:
- a guidance device configured to provide feedback to a user to compress a patient'"'"'s chest at a rate of between about 90 and 110 compressions per minute and at a depth of between about 4.5 centimeters per compression to about 6 centimeters per compression;
a pressure regulation system comprising a pressure-responsive valve that is adapted to be coupled to a patient'"'"'s airway, wherein the pressure-responsive valve is configured to remain closed during successive chest compressions in order to permit removal at least about 200 ml from the lungs in order to lower intracranial pressure to improve survival with favorable neurological function, and wherein the pressure-responsive valve is configured to remain closed until the negative pressure within the patient'"'"'s airway reaches about −
7 cm H2O, at which time the pressure-responsive valve is configured to open to provide respiratory gases to flow to the lungs through the pressure-responsive valve.
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Accused Products
Abstract
A system includes a guidance device that provides feedback to a user to compress a patient'"'"'s chest at a rate of between about 90 and 110 compressions per minute and at a depth of between about 4.5 centimeters to about 6 centimeters. The system includes a pressure regulation system having a pressure-responsive valve that is configured to be coupled to a patient'"'"'s airway. The pressure-responsive valve is configured to remain closed during successive chest compressions in order to permit removal at least about 200 ml from the lungs in order to lower intracranial pressure to improve survival with favorable neurological function. The pressure-responsive valve is configured to remain closed until the negative pressure within the patient'"'"'s airway reaches about −7 cm H2O, at which time the pressure-responsive valve is configured to open to provide respiratory gases to flow to the lungs through the pressure-responsive valve.
369 Citations
21 Claims
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1. A system to increase survival with favorable neurological function after cardiac arrest, the system comprising:
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a guidance device configured to provide feedback to a user to compress a patient'"'"'s chest at a rate of between about 90 and 110 compressions per minute and at a depth of between about 4.5 centimeters per compression to about 6 centimeters per compression; a pressure regulation system comprising a pressure-responsive valve that is adapted to be coupled to a patient'"'"'s airway, wherein the pressure-responsive valve is configured to remain closed during successive chest compressions in order to permit removal at least about 200 ml from the lungs in order to lower intracranial pressure to improve survival with favorable neurological function, and wherein the pressure-responsive valve is configured to remain closed until the negative pressure within the patient'"'"'s airway reaches about −
7 cm H2O, at which time the pressure-responsive valve is configured to open to provide respiratory gases to flow to the lungs through the pressure-responsive valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method to increase survival with favorable neurological function after cardiac arrest, the method comprising:
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providing a valve system comprising a pressure-responsive valve that is adapted to be coupled to a person'"'"'s airway, the valve system being configured to remain closed during successive chest compressions in order to permit removal at least about 200 ml from the lungs in order to lower intracranial pressure to improve survival with favorable neurological function, wherein the valve system is configured to remain closed until the negative pressure within the patient'"'"'s airway reaches about −
7 cm H2O, at which time the valve system is configured to open to provide respiratory gases to flow to the lungs, and wherein the valve system is configured so that when the valve system opens, it provides resistance to the incoming gas flow at a level of about 7 to about 18 cm H2O at a flow rate of 20 L/min;providing instructions to reduce blood volume from the brain by compressing the chest at a rate between about 90 to about 110 per minute at a depth of about 4.5 to about 6 cm; providing a guidance device that is configured to provide user feedback as to whether the chest compressions are being performed at a rate between 90 to 110 compressions per minute and at a depth of 4.5 cm per compression to about 6 cm per compression; providing instructions to provide positive pressure ventilation at a rate of 6 to 14 breaths/minute with a tidal volume of about 400 ml to about 70 ml. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method to increase survival with favorable neurological function after cardiac arrest, the method comprising:
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providing a pressure regulation system comprising a pressure-responsive valve that is adapted to be coupled to a patient'"'"'s airway, wherein the pressure-responsive valve is configured to remain closed during successive chest compressions in order to permit removal at least about 200 ml from the lungs in order to lower intracranial pressure to improve survival with favorable neurological function, and wherein the pressure-responsive valve is configured to remain closed until the negative pressure in the patient'"'"'s airway reaches about −
7 cm H2O, at which time the pressure-responsive valve is configured to open to provide respiratory gases to flow to the lungs through the pressure-responsive valve;providing instructions to reduce blood volume from the brain by compressing the chest at a rate between about 90 to about 110 per minute at a depth of about 4.5 to about 6 cm; and providing a chest compression device that is configured to provide user feedback as to whether the chest compressions are being performed at a rate between 90 to 110 compressions per minute and at a depth of 4.5 cm per compression to about 6 cm per compression. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification