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.

A bi-level positive airway pressure device includes a housing that has a patient port for connecting to an airway of a patient. There is a device (e.g., a nozzle) for generating a positive airway pressure that is directed through a conduit towards the patient port. An exhalation detector includes a nozzle emitting a jet of a gas directed across the conduit and directed at a receptor channel when exhalation gases flow from the patient port, thereby an increase a gas pressure is present at the receptor channel when the exhalation gases flow from the patient port. The exhalation detector converts the increase in the gas pressure into a movement of an occluding member such that when the exhalation gases flow from the patient port, the occluding member moves to block the means for generating the positive airway pressure.

A stand-alone chamber or multi-chamber inhalation system has at least two alternative vaporized test liquid supply systems for passive or self-administered delivery of vaporized test fluid and air to one or more test chambers, which can be passive or restraint chambers, based on operator selection of delivery on and off times in a passive mode or actuation of an actuator in the chamber by a test animal in a self-administered mode. In one case, a multiple inhalation chamber system has two or more separate test fluid delivery systems and provides options for selective passive uniform drug delivery to multiple chambers or selective delivery of two or more different drugs to different groups of chambers from different delivery systems so that two different drugs or different concentrations of delivered drugs can be tested simultaneously.

A fluid control device includes a case including an internal space that is partitioned by a partition wall into an air blowing chamber and a control chamber. A dividing wall is disposed inside the air blowing chamber to partition an internal space of the air blowing chamber into a first air blowing chamber and a second air blowing chamber. A fan unit is housed in the second air blowing chamber. A differential pressure sensor senses a differential pressure between a pressure inside the first air blowing chamber and a pressure inside the second air blowing chamber. A controller controls a fan based on the sensed differential pressure.

The present invention relates to the art of automatic regulation of pulmonary devices for imitating, assisting and/or enforcing the breathing process by converting Bag-Valve-Mask (BVM) or a similar device to enhance both phases of breathing: inhalation and exhalation while applying a variable pressure during the breathing process. It also replaces a mechanical chest compression to the sternum area for automatic pneumatic compression, and it could be complimented with the use of a Tens unit, can be used for extended period of time with a high level of reliability, simplicity, efficacy and low cost. The unique filtration system's goal in this invention is safety of the treating patient as well as assisting personnel. This portable and light device is recommended to be used as a resuscitator for the patients with mild to extremely suppressed or without respiratory drive. The source of power can be electrical, battery operated, manual or a combination thereof.

A respiratory therapy device comprising at least one fan unit for generating a respiratory airflow for carrying out respiratory therapy. The fan unit comprises a housing and at least one fan wheel rotatably mounted in the housing. Respiratory air is transported through a channel formed inside the housing, which housing comprises at least one structural element, which reduces the sound emission.

Device for determining a usage intensity of a ventilator, having at least one control unit and a usage clock, which is designed and configured to detect the duration of the usage of the ventilator. The device is characterized in that the control unit is configured and designed to offset the duration of the usage of the ventilator with at least one wear factor, in order to determine at least one wear therefrom.

A ventilator includes a ventilation body, the ventilation body includes a ventilation cavity and an air inlet end and an air outlet end communicating with the ventilation cavity, the ventilation body further includes an annular shell configured to form the ventilation cavity, the annular shell is formed with an annular cavity inside, an air inlet and an air outlet communicating with the annular cavity are disposed on the annular shell, the air outlet is communicated with the annular cavity and the ventilation cavity, the air outlet has a slit shape extending along a circumferential direction of the annular shell and is disposed to be capable to guide gas flows out towards the air outlet end. The ventilator may greatly increase the ventilation volume and the gas pressure, by using the ventilation body as mentioned above.

Systems and methods are provided for delivering one or more drugs. In some embodiments, a drug delivery system includes a housing having a distal end with an inlet through which an inspiratory flow of air passes into the housing, a proximal end having a patient interface attached thereto, the patient interface being configured to interface with a user, and an inspiratory flow pathway extending from the distal end to the proximal end of the housing. A nitric oxide (NO) source is positioned within the housing and is configured to deliver NO-containing gas to the patient interface. A secondary drug source is positioned within the housing and is configured to deliver a secondary drug to the patient interface. A controller is configured to control an amount of NO-containing gas and an amount of the secondary drug delivered using a control scheme.

A system for supporting pulmonary gas exchange in patients and for coupling to a ventilating system or for use in the case of non-ventilated patients, which has a flexible hose introducible into the trachea of a patient, a pump unit, a reservoir unit and a controller such that via the flexible hose and by means of the pump unit it is possible to regulate aspiration, especially end-expiratory aspiration, and recirculation, especially end-inspiratory recirculation, of the aspirated gas. In order that the system can be operated independently of a ventilating system, the system has a sensor.