A manually operated resuscitator is provided. The resuscitator has an inner member provided in an outer member. The inner and outer members have an arrangement of apertures and valves to enable ambient air to be drawn into the pump in its non-pressurizing stroke and on a pressurizing stroke the inner member is capable of discharging air. The pump is connected to a mask by a rigid conduit. The face mask is positionable over the nose and mouth of a patient so as to form a fairly airtight seal with the face of the patient. An exhale aperture is provided adjacent the face mask which enables the patient to exhale air to the exterior of the device. The dimensions and configuration of the pump and conduit are suitable for human resuscitation purposes. Furthermore, the construction is such that the user of the device can hold the mask with one hand and the outer cylindrical member can be held and reciprocated by the other hand of the user so that when ambient air is pumped from the pump to the face mask, an increased pressure is applied to the mask so as to enhance the seal between the mask and the face of a patient.
A device for exercising respiratory muscles. By creating a cavity within its bottle like body, the device is able to trap a sufficient amount of exhaled CO.sub.2, to prevent a subject from experiencing the effects of hyperventilation as the subject inhales and exhales at high and large respiratory rates and volumes respectively. The invention has at one end a face mask, which is fastened to a bottle like body. This bottle like body can be enlarged or reduced to create a varying size cavity that traps exhaled CO.sub.2 and ambient air. An opening is placed at or near the bottom of the device that allows ambient air to enter the cavity. The opening is large enough so that no resistance of air flow is experienced during breathing exercise, as resistance of air flow may be damaging to lung tissue. The bottle like body which creates the cavity is divided into upper and lower halves. These halves slide or twist, one within the other to increase or decrease the size of the cavity, in order to accommodate differing lung capacities.
A pneumatic compressor is provided for bag-valve-mask resuscitators which permit a bladder to be compressed. The compressor permits resuscitators to be operated in the normal manner by squeezing, and also allows operation by blowing into a mouthpiece. A flexible enclosure can be easily installed over a flexible bag-valve-mask or a resuscitator, the enclosure has a plastic sleeve that can be fitted over the bladder and provides a sealed enclosure, and a tube is attached to an opening in the plastic sleeve, the tube has a mouthpiece at an exterior end to permit the enclosure to be pressurized and the bladder compressed.
A gas concentrator adaptable for use within a breathing apparatus, particularly for use within a resuscitator, Trach T, patient tee, or a high oxygen concentration mask. The gas concentrator distributes gas into the resuscitating device through a substantially elongated member that has a number of perforations at one end and a stopper at an opposite end. In addition, the gas concentrator has one or more air check valves that are in fluid communication with the reservoir of the resuscitating device and the atmosphere. A front manifold is used to couple the reservoir to a patient breather apparatus which regulates the flow of oxygen or gas to the patient.
An infant inhaler in which the aerosol medication is communicated into a flexible bag. Using a mask, during inhalation, the medicated air within the flexible bag is drawn into the infant's lungs; exhalation from the infant is exhausted into the atmosphere. By watching the deflation of the flexible bag, the care-giver is appraised of the progress of the medication's inhalation. The entire assembly is held with one hand allowing the infant to be cradled in the other arm. Refilling of the flexible bag with ambient air is accomplished by inverting the apparatus which causes the valves therein to open and allow ambient air into the flexible bag. Refilling the flexible bag with medication is done using a single hand by pressing the aerosol bottle against the apparatus.
This disclosure relates to a valve for a resuscitator apparatus including a resuscitator bag and a reservoir bag. The valve is mounted in a coupling between the two bags. The valve comprises a reed flapper in a housing, the reed flapper having one side exposed to the interior pressure and another side exposed to the ambient pressure. The reed flapper is movable in response to a higher interior or ambient pressure (a pressure differential), to open a housing port to allow flow out of or in to the reservoir bag interior. The valve further includes a biasing part to increase the opening pressure differential in one direction or the other.
