An emergency resuscitation apparatus with external air volume control includes a housing having top and bottom plates pivotally coupled so as to siphon air into an internal reservoir via an inflow port and propel air out through an outlet port to a patient. A volume control plate is coupled to the bottom plate externally adjacent a second end wall, the volume control plate having a plurality of volume selectors. An air volume limit arm is operatively coupled to the volume control plate and selectively movable between and coupled to a selected volume selector. A volume limiting flange associated with the volume limit arm are positioned in a common vertical plane with top plate such that the volume limit flange prevents upward movement of the top plate beyond the setting of the volume limit arm so as to regulate a quantity of air being expelled.

An embodiment includes a ventilator system that corrects oxygen sensor measurements, for example derived from an oxygen sensor in a mixing chamber of an indirect calorimeter or oxygen consumption (VO.sub.2) monitoring device. In an example, an embodiment determines fractional inspired oxygen drift as supplied by a ventilator and utilizes the change or change rate in fractional inspired oxygen over time to correct VO.sub.2 determinations made by the system.

A breathing assistance apparatus includes an inner volumetric member pressurizable from a first pressure to a second pressure and an outer volumetric member surrounding at least a portion of the inner expandable volumetric member. The inner volumetric member pressurizes the outer volumetric member as the inner volumetric member is pressurized from the first pressure to the second pressure. In another embodiment, a breathing assistance apparatus includes exhalation and inhalation chambers with respective biasing members providing for the exhalation chamber to apply a pressure to the inhalation chamber and thereby provide assisted inhalation. Methods for assisting breathing are also provided.

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 heat exchange apparatus (26) for condensing water from a flow of respiratory gas is disclosed. The apparatus (26) comprises a first portion having an inlet (28) and a second portion having an outlet (30), the inlet (28) and outlet (30) being connectable to a breathing system (10) and the first and second portions being arranged in flow series, wherein the first portion comprises a condenser (64) and the second portion comprises a heater (64) downstream of the condenser for increasing the temperature of the respiratory gas flow prior to the outlet (30).

A breathing assistance apparatus includes an inner volumetric member pressurizable from a first pressure to a second pressure and an outer volumetric member surrounding at least a portion of the inner expandable volumetric member. The inner volumetric member pressurizes the outer volumetric member as the inner volumetric member is pressurized from the first pressure to the second pressure. In another embodiment, a breathing assistance apparatus includes exhalation and inhalation chambers with respective biasing members providing for the exhalation chamber to apply a pressure to the inhalation chamber and thereby provide assisted inhalation. Methods for assisting breathing are also provided.

As disclosed herein, the present invention relates to an improved respirator having a respirator mask, respirator bellows, respirator conduits, and mounting straps attached to the torso of an operator. The respirator mask is positioned over a patient's face so as to cover the nose and mouth. The respirator bellows are positioned under the arms of the operator and are attached to the mounting straps, which may be configured as a vest that can be worn by the operator. The respirator bellows communicate with the respirator mask via the respirator conduits. The operator can deliver air or oxygen to the respirator mask by pumping the respirator bellows with his or her arms. Advantageously, the pumping motion is actuated without the use of hands. The hands-free pumping action allows the operator to firmly secure the respirator mask in proper position on the patient's face with both hands.

A patient interface for sealed delivery of a flow of air to ameliorate sleep disordered breathing may include: a seal-forming structure to form a pneumatic seal with the entrance to the patient's airways; a positioning and stabilising structure to maintain the seal-forming structure in sealing contact with an area surrounding the entrance to the patient's airways; a plenum chamber pressurised at a pressure above ambient pressure in use; a connection port for the delivery of the flow of breathable gas into the patient interface; and a device positioned within a breathing chamber defined, at least in part, by the seal-forming structure and the plenum chamber, wherein the device divides the breathing chamber into a posterior chamber and an anterior chamber, and wherein the device comprises a plurality of apertures such that turbulence of the air in the posterior chamber is less than turbulence in the air in the anterior chamber.

An apparatus for supporting the head and neck for airway management and to facilitate the maintenance of a patent airway under anesthesia, for unconscious patients, and for any circumstance requiring a patent airway while the patient is lying on her side. The apparatus includes a head supporting surface, an adjustable neck supporting surface, and two adjustable jaw support arms to protrude the jaw forward and maintain ventilation while the patient is lying on either of his/her sides.

The invention relates to the technical field of first aid equipment, and discloses a portable child anti-choking first aid equipment, including a face mask, an air cylinder grip, an outflow one-way valve, an inlet one-way valve, and also including a folding airbag. The foldable airbag is mounted between the mask and the air cylinder grip. When the folded airbag is pulled up, the gas is discharged and the foreign matter is sucked out, and the gas brief grip is pulled upward to drive the folded airbag to pull up. When the air simple grip is pressed downward, the outflow check valve opens and the inlet check valve closes, discharging the gas inside the folded airbag. When folded, the foldable anti-asphyxiation first aid equipment is more than three times smaller than portable first aid equipment on the market, making it easy for parents or child caregivers to carry in their bags.