Apparatus and method for improved assisted ventilation
Devices and methods for allowing for improved assisted ventilation of a patient. The methods and devices provide a number of benefits over conventional approaches for assisted ventilation. For example, the methods and devices described herein permit blind insertion of a device that can allow ventilation regardless of whether the device is positioned within a trachea or an esophagus. In addition, the methods and device allow for timed delivery of ventilations based on a condition of a thoracic cavity to increase the amount and efficiency of blood flow during a resuscitation procedure.
1. A method of artificially ventilating an individual during chest compressions, the method comprising the steps of:
inserting a ventilation device within a respiratory opening of the individual and positioning a working end of the ventilation device within a body passageway of the individual, the ventilation device having a pressure sensor configured to detect pressure changes within the body passageway;
delivering a bolus of air into an airway of the individual at a pre-determined rate;
altering the pre-determined rate by delaying the delivery of the bolus of air when the sensor detects a pressure change in the air within the body passageway, where the pressure change within the body passageway resulting from the chest compressions;
where the working end includes a first opening fluidly coupled to a first lumen and a second opening fluidly coupled to a second lumen, where the second opening is located along the ventilation device proximal to the first opening; and
where inserting the ventilation device within the respiratory opening further comprises:
drawing suction through the first opening to induce collapse of the body passageway and maintaining the suction for a period of time;
monitoring a fluid parameter to determine whether the body passageway collapses;
automatically ventilating the individual by:
automatically ventilating the individual through the second lumen upon detecting collapse of the body passageway and maintaining suction during the ventilating to maintain the collapse of the body passageway; and
automatically ventilating the individual though the first lumen upon failure to detect collapse of the body passageway;
wherein the bolus of air is delivered during the automatically ventilating of the individual, where the automatically ventilating of the individual occurs at a first timing;
measuring a condition of a thoracic cavity to determine a change in the thoracic cavity; and
altering the timing of the delivery of the bolus of air during the automatically ventilating of the individual upon detecting the change in the condition thoracic cavity.
2. The method of claim 1 , where delivering the bolus of air into the airway of the individual occurs after a pre-determined delay.
3. The method of claim 1 , where the sensor is configured to intermittently detect pressure changes within the body passageway.
4. The method of claim 1 , further comprising, after altering the pre-determined rate, the ventilation device resumes delivering the bolus of air at the pre-determined rate if the pressure sensor fails to detect a pressure range within a first period of time.
5. The method of claim 1 , where measuring the condition of the thoracic cavity comprises measuring the condition of the thoracic cavity using the ventilation device.
6. The method of claim 1 , where measuring the condition of the thoracic cavity comprises measuring a change in a compression of a chest of the individual.
7. The method of claim 6 , where measuring the change of the compression of the chest of the individual comprises observing a force applied to the ventilation device by the body passageway.
8. The method of claim 6 , where measuring the change of the compression of the chest of the individual comprises observing a deflection of the chest of the individual using one or more sensors on the chest.
9. The method of claim 1 , where measuring the condition of the thoracic cavity comprises measuring a state of air flow within the thoracic cavity.
10. The method of claim 9 , where measuring the state of air flow comprises measuring a direction of air flow.
11. The method of claim 1 , where the altering the timing comprises using the pressure sensor to determine when a pressure in the body passageway increases and delivering air for automatically ventilating the individual when the pressure in the body passageway increases, decreases, or reaches a maximum pressure.
12. The method of claim 1 , further comprising providing a feedback based on measuring the condition of the thoracic cavity.
13. The method of claim 12 , where the feedback comprises information regarding the chest compression, where the information is selected from the group consisting of a phase, rate, efficiency, depth, and timing.
14. The method of claim 12 , where the feedback comprises information to increase or decrease a compression applied to a chest of the individual.
15. The method of claim 1 , where the altering the timing of the ventilation comprises initiating the automatically ventilating of the individual when a pressure increases in the body passageway.
16. The method of claim 15 , further comprising continuing measuring the condition of the thoracic cavity to determine the change in the thoracic cavity after the altering the timing of the automatically ventilating of the individual and reverting to automatically ventilating the individual at the first timing upon failure to detect the change in the thoracic cavity.
17. The method of claim 1 , further comprising adjusting the ventilating device to suspend the automatically ventilating of the individual and manually ventilating the individual while maintaining suction to maintain a vacuum.
18. The method of claim 1 , further comprising a mask slidably positioned along the ventilation device.
19. The method of claim 18 , further comprising sealing the mask agains the individual to isolate the respiratory opening of the individual from an external atmosphere.
20. The method of claim 1 , further comprising electrically stimulating, a heart of the individual using the ventilation device.
21. The method of claim 1 , further comprising monitoring the individual for a pulse using a portion of the ventilation device located in the body lumen.
22. A method for ventilating an individual, the method comprising the steps of:
inserting a ventilation device into the individual by advancing a working end of the ventilation device within a body passage of the individual, where the working end includes a far opening fluidly coupled to a first lumen and a medial opening fluidly coupled to a second lumen;
drawing suction through the far opening and attempting to hold a vacuum through the first lumen and the far opening for a pre-determined period of time;
automatically ventilating the individual by:
automatically ventilating the individual through the second lumen upon detecting the vacuum during the pre-determined period of time and maintaining suction through the far opening during ventilating to maintain the vacuum: and
automatically ventilating the individual through the first lumen upon failure to detect the vacuum during the pre-determined period of time;
where the automatically ventilating of the individual occurs at a pre-determined timing;
measuring a condition of a thoracic cavity to determine a change in the thoracic cavity; and
altering a timing of the automatically ventilating of the individual upon detecting the change in the condition of the thoracic cavity.