摘要:
A process and a device are provided for separating carbon dioxide from a breathing gas mixture by means of a “Fixed Site Carrier” membrane. The breathing gas mixture is guided in the device on a side of a selective, semipermeable membrane, which is provided with amine groups, which are bound covalently to a polymer. Through the membrane, the transport of the components of the gas mixture can take place. The membrane is selected to be such that the permeability for CO2 is substantially higher than the permeability for the other gas components of the breathing gas mixture. The membrane has or is associated with means for guiding the gas, which acts to guide the gas mixture on one side along the membrane. The membrane separates volume areas in which different CO2 partial pressures prevail from one another.
摘要:
A device for exchanging gas volumes in an anesthetic system has an inlet, an outlet, a first chamber arranged between the inlet and the outlet, a second chamber arranged between the inlet and the outlet, a switching valve for selective connection to the first chamber or the second chamber for forming a flow path between the inlet and the outlet, and a controller for controlling the switching valve.
摘要:
A process and system are provided for controlling a respirator with a breathing circuit (2), an inspiration branch (10) and an expiration branch (12), in which the gas components needed for the respiration are fed in by a fresh gas metering device (20) via a fresh gas line (9), as a result of which at least the amount of breathing gas consumed can be replenished. A breathing gas delivery unit (1) is provided in the inspiration branch (10) and with a volume flow sensor (13) in the expiration branch (12). The fresh gas utilization of the respirator is improved and the process and system reduces the resistances in the breathing circuit (2) for the patient (3) by the breathing gas delivery unit (1) being returned during the phase of expiration at a speed that depends on the volume flow that is measured by the volume flow sensor (13). A maximum percentage of the breathing gas volume expired via the expiration branch (12) reaches the breathing gas delivery unit (1) and can be displaced from there to the patient (3) via the inspiration branch (10).
摘要:
A process and system are provided for controlling a respirator with a breathing circuit (2), an inspiration branch (10) and an expiration branch (12), in which the gas components needed for the respiration are fed in by a fresh gas metering device (20) via a fresh gas line (9), as a result of which at least the amount of breathing gas consumed can be replenished. A breathing gas delivery unit (1) is provided in the inspiration branch (10) and with a volume flow sensor (13) in the expiration branch (12). The fresh gas utilization of the respirator is improved and the process and system reduces the resistances in the breathing circuit (2) for the patient (3) by the breathing gas delivery unit (1) being returned during the phase of expiration at a speed that depends on the volume flow that is measured by the volume flow sensor (13). A maximum percentage of the breathing gas volume expired via the expiration branch (12) reaches the breathing gas delivery unit (1) and can be displaced from there to the patient (3) via the inspiration branch (10).
摘要:
A vacuum system for medical tables, primarily comprises a universal arm, attached inhaler masks and a vacuum source. This equipment primarily places the inhaler masks at the sides of patient's mouth. Then, through the vacuum source, the mist surrounding the patient's mouth and the dirty air breathed out by the patient will be inhaled and clean air is released after filtering.
摘要:
A quantitative electroencephalograph (QEEG) based method and system for automatically controlling anesthesia is called a Closed Loop Anesthesia Controller (CLAC). An anesthetic is administered until the patient has attained the desired plane of anesthesia and a QEEG self-norm is then obtained. If the patient's brain waves exceed a confidence interval, centered at the set-point of the self-norm, the administration of the anesthesia is automatically adjusted.
摘要:
An anesthesia circuit stand is able to support an anesthesia circuit fitting, when not attached to a patient or to a patient airway securement device in such a manner that anesthesia vapor and nitrous oxide is prevented from escaping into the environment of an operating room. The stand includes a base portion to which is connected a stalk element. The stalk can be substantially in the form of a cone having a proximal end with a greater diameter than a distal end. Alternatively, the stalk can be in the shape of a generally cylindrical rod. A distal end of the stalk includes a plug portion which has a diameter sufficient to engage the inner diameter of an outlet orifice of an anesthesia circuit elbow in a frictional fit.
摘要:
A surgical splatter shield is provided which is adapted to be carried by a suction catheter for effecting the suction of blood from the area being operated on without the customary undesirable splatter of blood. The surgical splatter shield is preferably in the form of an elongated transparent plate which is transversely curved and which is attached to the customary suction catheter. The plate forming the surgical splatter shield has a sleeve permanently or fixedly attached to the edge of a central aperture. The sleeve extends upwardly from the plate and receives a terminal end of the suction catheter in press-fit or snug engagement.
摘要:
A cartridge loosely containing powdered activated charcoal is connected to a conventional anesthetic administration system of the type commonly used in veterinary surgical facilities. The cartridge is readily supported by a conventional anesthetic cart and is usable in both rebreathing and pass-through operation of the anesthetic-administration system. Gases of vaporized anesthetic substances that typically are released from the pop-off valve of liquid anesthetic containers or in the exhalations from the animal patient are both selectively directed through the activated charcoal without the need for motors, blowers, or other devices requiring power. The invention utilizes commonly available materials such as PVC pipe and end fittings, powdered activated charcoal and fiberglass filter elements, and assorted commercially available pipe fittings. In relatively compact form, this invention enables the removal of approximately 95% of anesthetic substances that otherwise would be released where they would likely be breathed in by and do harm to surgery personnel. The cartridge may be shaken to rearrange the particles of activated charcoal, to thereby generate new gas-flow paths between newly-exposed surfaces that can adsorb more anesthetic substances.
摘要:
A dust-free garment including: a garment body having garment opening portions opening to the outside; an air passage system, attached to the garment body and having an outlet adapted to communicate to a dust collector for exhausting air therein to the dust collector to filter air; and an air entrance mechanism located in the vicinity of at least one of the garment opening portions and communicated to the air passage system for entering air into the air passage system.