The present disclosure provides techniques for a ventilator system with a removable airway. A ventilator system may include a removable airway and a base unit. The removable airway may include an air inlet port, a patient inhalation port, an air exhaust port, and a patient exhalation port. The base unit may include two pinch valves. In some cases, the removable airway does not comprise any openings other than the air inlet port, the air exhaust port, the patient inhalation port, and the patient exhalation port. In some cases, the removable airway is configured such that air inside the removable airway does not contact any part of the base unit. In some cases, the removable airway is configured such that air that enters the patient exhalation port is contained within the removable airway along a contiguous path and at no point does the contiguous path contact the base unit.

The present invention relates to the art of automatic regulation of pulmonary devices for assisting and/or enforcing the breathing process by converting Bag-Valve-Mask (BVM) apparatus are also known as manual resuscitators to automatic system by pneumatic matter with the goal to enhance both phases of breathing: inhalation and exhalation. It also replaces a mechanical chest compression for automatic pneumatic compression, could be complimented with the use of the TENs unit and can be used for extended periods of time with a high level of reliability, simplicity, efficacy and low cost.

This portable and light device is recommended to be used as a resuscitator attached to 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.

That feature is extremely critical for its use in a combat zone or during a power failure.

Methods and systems are provided for an oxygen sensor included in a medical gas flow device, such as an anesthesia machine. In one embodiment, a method for a medical gas flow device comprises tracking an output voltage of an oxygen sensor during calibration over time, and, responsive to the output voltage decreasing by at least threshold amount from an initial calibration output voltage, estimating an end-of-life date of the oxygen sensor and outputting a replacement notification.

In a method and system of regulating multiple anesthetic agents in a breathing circuit of an anesthetic breathing apparatus is disclosed, a primary anesthetic agent added to the breathing circuit is regulated to a set desired value of the amount of the primary anesthetic agent, and a secondary anesthetic agent in the breathing circuit is regulated to an amount of said secondary anesthetic agent that it is equal to or less than a defined threshold level, e.g. of the concentration, of the secondary anesthetic agent.

A ventilation drive (10) for an anesthesia device and a method for operating such a ventilation drive (10) are provided. The ventilation drive includes a blower unit (12), a pressure chamber (14) and a flexible bag (16) located in the pressure chamber (14). An internal volume of the bag (16) is coupled to an inspiratory branch (20) of a ventilation line. The blower unit (12) can be coupled to the internal volume of an outlet side and to an air inlet (26) for feeding ambient air on an inlet side. Further, a flow sensor (36) is provided between the outlet side of the blower unit (12) and the pressure chamber (14).

A patient ventilation system includes a ventilator configured to deliver ventilation gas to patient, a CO.sub.2 concentration sensor configured to provide EtCO.sub.2 measurements for the patient, and an SpO.sub.2 monitor configured to determine an SpO.sub.2 value for the patient. A ventilation control module is executable on a processor and configured to compare the SpO.sub.2 value to a threshold SpO.sub.2 and determine from this comparison that the SpO.sub.2 value indicates inadequate oxygenation. A minimum ventilation amount is then set, and the ventilator is then controlled based on the EtCO.sub.2 measurements and the minimum ventilation amount so as to deliver at the least the minimum ventilation amount to the patient while the SpO.sub.2 value indicates inadequate oxygenation.

Embodiments of the present invention provide systems and methods for delivering respiratory treatment to a patient. For example, a treatment system may include a mechanism for delivering a positive pressure breath to a patient, and one or more limb flow control assemblies which modulate gas flow to and from the patient. Exemplary treatment techniques are embodied in anesthesia machines, mechanical ventilators, and manual ventilators.

Resuscitation apparatuses and methods for assisted ventilation are described herein. The apparatuses may include functional elements that allow the manual delivery of a prescribed volume to an adult or an infant lung. Furthermore, the apparatuses may inform and assure an emergency worker that an appropriate volume is being delivered and therefore lessen the possibility of barotrauma from over-delivery, or ventilatory distress from under-delivery. In some embodiments, the apparatuses include biomechanical and ergonomic functional elements that allow an adult hand to hold it in place during operation, while at the same time, allowing the user to actuate the apparatus to deliver only the necessary amount of volume suitable for an infant lung. In other embodiments, a volume-controlled design is applied to pediatric and adult resuscitation.

A stabilizer arm for a BVM resuscitator and method of use is disclosed. The stabilizer arm provides the necessary support to the reservoir bag to enable the user to exert downward pressure on the BVM resuscitator while simultaneously squeezing the reservoir bag, and creates force that is focused, directed, and realized at the mask of the assembly. Due to the presence of the stabilizer arm, this pressure pushes the facial mask downward to assist in forming a tight mask to face seal. The stabilizer arm may be internal, external or integrated into the reservoir bag wall of the BVM resuscitator and may be retro-fitted or original equipment manufactured. The external stabilizer arm may be designed to engage the outlet port neck of the BVM resuscitator with an open collar or a closed collar. The internal stabilizer arm may be configured to fit BVM resuscitators having single piece or multiple piece outlet valve design.

This disclosure provides an anesthesia machine and system, which may be used in the technical field of medical devices. The anesthesia machine may include a gas source interface and an oxygen supply apparatus and an anesthetic breathing apparatus separately connected to the gas source interface. The oxygen supply apparatus may provide an oxygen-containing gas to a patient. The anesthetic breathing apparatus may provide anesthetic breathing support to the patient. The anesthesia machine system may further include an anesthesia machine and an oxygen supply device. The anesthesia machine may be further provided with a fixing mechanism, and the oxygen supply device may be detachably fixed to the anesthesia machine by means of the fixing mechanism.