Systems and methods to increase survival with favorable neurological function after cardiac arrest
First Claim
1. A system for treating a patient in cardiac arrest 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 of at least about 200 ml of air from the lungs, 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 to −
18 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.
2 Assignments
0 Petitions
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.
388 Citations
23 Claims
-
1. A system for treating a patient in cardiac arrest 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 of at least about 200 ml of air from the lungs, 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 to −
18 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, 10)
-
-
11. A method of treating a patient in cardiac arrest, the method comprising:
-
providing a valve system comprising a pressure-responsive valve that is adapted to be coupled to a patient'"'"'s airway, the valve system being configured to remain closed during successive chest compressions in order to permit removal of at least about 200 ml of air from the lungs, wherein the valve system is configured to remain closed until the negative pressure within the patient'"'"'s airway reaches about −
7 cm H2O to −
18 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 per minute with a tidal volume of about 400 ml to about 70 ml. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A system for treating a patient in cardiac arrest comprising:
-
a housing comprising at least one pressure-responsive valve therein, the pressure-responsive valve adapted to be coupled to a patient'"'"'s airway, wherein the pressure-responsive valve is configured to remain closed during successive chest compressions, 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 to −
18 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; anda manual chest compression device for delivering manual chest compressions to the patient, the manual chest compression device comprising a processor and memory having stored thereon programming instructions that, when executed by the processor, cause the device 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 cm per compression to about 6 cm per compression. - View Dependent Claims (19, 20, 21, 22, 23)
-
Specification