An anesthetic circuit is provided for treating a patient. The anesthetic circuit includes a membrane having a plurality of hollow fibers. Also provided is a fluid separation apparatus connectable to an anesthetic circuit. In a further embodiment, a method is provided for anesthetic treatment of a patient.

An apparatus and method for assessing vascular compliance in subjects with multiple sclerosis using sequential gas delivery is provided. The apparatus includes a gas delivery device and a processor. The processor controls the gas delivery device to deliver a first and second gas during a single inspiration. The first gas contains a mixture of oxygen and carbon dioxide necessary to target an end-tidal concentration of the two gases. The second gas includes a concentration of carbon dioxide equal to the target end-tidal concentration of carbon dioxide.

The present invention discloses a carbon dioxide inhalation treatment device for central sleep apnea comprising a blower, a gas cylinder filled with carbon dioxide (CO.sub.2), an airbag, a mask, and a detection mechanism for detecting the central apnea by measuring the electromyographic activity of the chest wall muscles. The mask is provided with multiple holes providing a communication between the inside and outside of the mask in order to prevent any sense of resistance of breathing and to provide greater control of inspired CO.sub.2. Inspired CO.sub.2 from a gas mixture containing also a minimum 20% O.sub.2 is driven by air using a blower into a mixing chamber. This carbon dioxide inhalation treatment device for central sleep apnea can provide a stable, mild level of carbon dioxide for patients with central sleep apnea, thus by preserving respiratory drive correcting central sleep apnea without increasing the arousal and microarousal frequency.

The present invention discloses a lung clearing and body building machine which mainly comprises a blowing pipe, a support frame, a ball body and a cover body. The blowing pipe comprises an air inlet end and an air outlet end. The air outlet end is provided with the support frame. The ball body is limited in the support frame. The air outlet end is buckled with the cover body, and a seal ring is arranged at a joint. Absorbent wool is arranged inside the cover body. In the present invention, by adding the absorbent wool in the cover body and injecting medicine into the absorbent wool, a use effect is enhanced. The present invention integrates the functions of prevention, treatment and health care, has convenient use, good atomization effect and no stimulation, and can monitor the use situation in real time.

A resuscitation bag system (1) useable for resuscitating a person in cardiac arrest, and having a gas control unit (90) with a first valve (92) fluidly connected to a first (922) and to a second conduit (923), the first (922) and second conduits (923) being arranged in parallel and further fluidly connected to the first conduit element (56), the first conduit (922) having a first flow restriction (924) configured for limiting the gas flow to a first flowrate, and the second conduit (923) comprising second flow restriction (925) configured for limiting the gas flow to a second flowrate, with the second flowrate being less than the first flowrate.

The present invention relates to non-invasive determination of the effective lung volume [ELV], cardiac output, effective pulmonary blood flow [EPBF] and/or the carbon dioxide content of venous blood of a mechanically ventilated subject (3). The subject (3) is ventilated using a ventilation pattern comprising at least one phase of decreased ventilation and at least one phase of increased ventilation, wherein each of said phases comprises at least two breaths during which a level of CO2 expired by said subject assumes a substantially steady state (SS1, SS2). At least one of said phases of decreased and increased ventilation comprises at least a first breath for generating a substantial change in the level of expired CO2 compared to a preceding breath, and at least a second breath being different in duration and/or volume than said first breath, for causing the level of expired CO2 to assume said substantially steady state (SS1, SS2).

The present invention relates to a respiratory tubing set for controlling breathing of a patient. A tubing set for controlling breathing of a patient includes a respiratory conduit. The respiratory conduit is configured to be coupled to a patient interface device and is further configured to be coupled to a pressurized air generating device. The respiratory conduit includes at least two airflow control devices, positioned between the patient interface device and the pressurized air generating device that cooperate to closely control the CO.sub.2 levels in the patient's bloodstream through the control of the patient's respiration.

An anesthesia delivery and ventilation system (ADVS) includes an expiratory section, a circulation flow system (CFS), an inspiratory section, a ventilation drive system (VDS), and an anesthesia delivery system (ADS). The expiratory section receives gases from a patient and the inspiratory section and fresh gases from a fresh gas supply system. An elastic mixing reservoir receives and mixes the gases circulated by the CFS with residual gases via a connector element. The inspiratory section connects to the expiratory section at one end and to a patient connector tube at the other end. The ADS infuses an anesthetic agent into the mixed gases in the inspiratory section. The VDS delivers the mixed gases with the anesthetic agent to the patient. The VDS and the CFS are controlled and operate independently of each other to provide positive end-expiratory pressure control and ventilation control to the patient without use of a proportional valve.

A mouthpiece includes a buccal retention feature that produces frictional attachment to the lateral buccal portions (inner cheeks) of the individual user. The mouthpiece includes a U-shaped body sized and shaped to conform to the outer face of the dental arch. The retention feature includes bulbous protrusions that project laterally outward from the body to engage the cheek. The mouthpiece, and particularly the buccal retention feature, has a width that is large enough to prevent dislodgment or removal of the device from the mouth, taking advantage of the decrease in the intercommissural distance as the mouth is opened to attempt to remove the device. The device further includes a duct portion extending forward, outside the mouth, from the body, to permit normal respiration through the duct portion. The duct portion can be configured to connect to other devices, including but not limited to, devices for rebreathing, suctioning, feeding or delivering medicaments.

The disclosure provides a way to supplement the tidal volume delivered to the patient by a leaking re-breather when the delivered volume becomes less than that set by the ventilator (in either pressure-regulated or volume modes). This may be accomplished with a shunta gas conduit joining the non-patient side of the re-breather to the patient side. A low-resistance, plenum or a draw-over vaporizer may also be incorporated into the gas pathway. Such a device may include a housing with a movable partition separating an actuating side from a patient side. The housing includes a ventilator orifice for pneumatic communication between a ventilator and the actuating side and a patient orifice for pneumatic communication between the patient side and a patient. A shunt defines a bypass flow path from the actuating side and to the patient side when the moveable partition is at a maximal displacement towards the patient side.