Abstract: An anesthesia vaporizer system includes a vaporizer reservoir forming a sump chamber that contains liquid anesthetic agent and a fill chamber isolated from the sump chamber configured to receive liquid anesthetic agent from a refill container. A piston is in the sump chamber configured to maintain a constant force on the liquid anesthetic agent in the sump chamber, and a transfer valve is configured to permit the liquid anesthetic agent to flow from the fill chamber to the sump chamber. The vaporizer reservoir has an outlet port that delivers the liquid anesthetic agent from the sump chamber to a vaporizing system that vaporizes the liquid anesthetic agent for delivery to a patient.

Abstract: An anesthesia vaporizer system includes a sump chamber, a variable volume reservoir within the sump chamber, and an anesthetic vaporizer. The variable volume reservoir is configured to contain anesthetic agent. A pressurized gas source is connected to the sump chamber and configured to maintain a constant pressure within the sump chamber to compress the variable volume reservoir to force the anesthetic agent through the anesthetic vaporizer, which vaporizes the liquid anesthetic agent for delivery to a patient.

Abstract: A system for tracking anesthetic agent in a vaporizer reservoir can include a mass flow sensor configured to measure a flow rate entering or exiting a vaporizer chamber, a gas pressure sensor configured to measure a pressure of a mixed gas provided from the vaporizer chamber, and a processor to calculate a remaining agent time based on at least the gas flow rate, the pressure of the mixed gas, and an anesthetic concentration in the mixed gas. The processor can also provide the remaining agent time for display to a clinician.

Abstract: A system for tracking anesthetic agent in a vaporizer reservoir includes a mass flow sensor configured to measure a flow rate entering or exiting a vaporizer chamber, a gas pressure sensor configured to measure a pressure of a mixed gas provided from the vaporizer chamber, a gas temperature sensor configured to measure a temperature of the mixed gas provided from the vaporizer chamber, and an agent time module executable on a processor. The agent time module is configured to calculate a remaining agent time based on at least the gas flow rate, the pressure of the mixed gas, the temperature of the mixed gas, and an anesthetic concentration in the mixed gas. The remaining agent time is then provided for display on a display device.

Abstract: An anesthesia vaporizer system includes a vaporizer reservoir forming a sump chamber that contains liquid anesthetic agent and a fill chamber isolated from the sump chamber configured to receive liquid anesthetic agent from a refill container. A piston is in the sump chamber configured to maintain a constant force on the liquid anesthetic agent in the sump chamber, and a transfer valve is configured to permit the liquid anesthetic agent to flow from the fill chamber to the sump chamber. The vaporizer reservoir has an outlet port that delivers the liquid anesthetic agent from the sump chamber to a vaporizing system that vaporizes the liquid anesthetic agent for delivery to a patient.

Abstract: An anesthesia vaporizer system includes a vaporizer reservoir forming a sump chamber containing a liquid anesthetic agent, a piston that forms a first chamber on a first side of the piston. The vaporizer reservoir has a fill port configured to receive a refill container containing liquid anesthetic agent and to permit flow into the first chamber. A motor moves the piston between a first position and a second position, wherein the volume of the first chamber increases as the piston moves from the first position towards the second position. The liquid anesthetic agent is thereby drawn from the refill container into the first chamber. A transfer valve is configured to permit the liquid anesthetic agent to flow from the first chamber into the sump chamber. An outlet port delivers the liquid anesthetic agent from the sump chamber into a vaporizing system that vaporizes it for delivery to a patient.

Abstract: An anesthesia vaporizer system includes a sump chamber, a variable volume reservoir within the sump chamber, and an anesthetic vaporizer. The variable volume reservoir is configured to contain anesthetic agent. A pressurized gas source is connected to the sump chamber and configured to maintain a constant pressure within the sump chamber to compress the variable volume reservoir to force the anesthetic agent through the anesthetic vaporizer, which vaporizes the liquid anesthetic agent for delivery to a patient.

Abstract: Leaching aids, for example, when present in a leaching solution, and methods of using the leaching aids. The leaching aids can include one or a combination of compounds. The method of using the leaching aids can include a process of recovering metal from ore, for example, a process involving heap leaching, solvent extraction and electrowinning.

Abstract: A method is provided for directing a user to a point of interest using sounds played on a wearable audio output device. A user's direction of gaze is determined using data from at least one sensor in the audio output device. First and second locations are determined of the user and the point of interest respectively, and a distance is determined between the first and second locations. A relative angle between the direction of gaze and the direction of the point of interest is determined based on the determined first and second locations. A sample sound is altered using at least one sonification technique to convey information relating to the determined distance and the relative angle. The altered sample sound is rendered and output for playing by the audio output device.

Abstract: A system for tracking anesthetic agent in a vaporizer reservoir includes a mass flow sensor configured to measure a flow rate entering or exiting a vaporizer chamber, a gas pressure sensor configured to measure a pressure of a mixed gas provided from the vaporizer chamber, a gas temperature sensor configured to measure a temperature of the mixed gas provided from the vaporizer chamber, and an agent time module executable on a processor. The agent time module is configured to calculate a remaining agent time based on at least the gas flow rate, the pressure of the mixed gas, the temperature of the mixed gas, and an anesthetic concentration in the mixed gas. The remaining agent time is then provided for display on a display device.

Abstract: An anesthesia vaporizer system includes a vaporizer reservoir forming a sump chamber containing a liquid anesthetic agent, a piston that forms a first chamber on a first side of the piston. The vaporizer reservoir has a fill port configured to receive a refill container containing liquid anesthetic agent and to permit flow into the first chamber. A motor moves the piston between a first position and a second position, wherein the volume of the first chamber increases as the piston moves from the first position towards the second position. The liquid anesthetic agent is thereby drawn from the refill container into the first chamber. A transfer valve is configured to permit the liquid anesthetic agent to flow from the first chamber into the sump chamber. An outlet port delivers the liquid anesthetic agent from the sump chamber into a vaporizing system that vaporizes it for delivery to a patient.

Abstract: Methods and systems for removing polar compounds from a metal-containing solution. According to various example aspects, methods and systems for removing hydrolysis byproducts and other polar compounds from a metal-loaded organic solution of a solvent extraction process.

Abstract: Leaching aids, for example, when present in a leaching solution, and methods of using the leaching aids. The leaching aids can include one or a combination of compounds. The method of using the leaching aids can include a process of recovering metal from ore, for example, a process involving heap leaching, solvent extraction and electrowinning.

Abstract: A wobble drive mechanism for coupling a rotary motion to a reciprocating motion comprising a diagonal plate coupled to a rotary motion axis driving a wobble carrier having a flat side in sliding contact with the diagonal plate and a spherical side in contact with a spherical bearing recess. The wobble carrier has a bore containing at least one reciprocating drive shoe. The reciprocating drive shoe may be coupled to a piston operating within a cylinder. The reciprocating drive shoe may be free to move in the bore linearly and/or rotationally. In various embodiments, the reciprocating drive shoe comprises two or more components. In various embodiments the piston is coupled to the shoe via a fixed rod section and the fixed rod section terminates in, for example, a double cylindrical bearing T section or a spherical bearing. The reciprocating drive may operate various devices, for example, pump or motor devices.

Abstract: A vaporizer filler includes a fill port. The fill port defines an open interior. The open interior is configured to receive the nozzle of an anesthetic bottle. An agent reservoir is configured to receive and store anesthetic agent. A valve is disposed between the open interior and the agent reservoir. At least one vent extends through the fill port. A method of filling a vaporizer includes inserting the nozzle of a bottle filled with anesthetic agent into a vaporizer filler. At least one vent is occluded from fluid communication. Fluid communication between and open interior and an agent reservoir is opened. Anesthetic agent is poured into an agent reservoir of a vaporizer. Fluid communication is closed between the open interior and the agent reservoir. At least one vent is opened to fluid communication with the open interior. Pressure within the open interior is released through the at least one vent.

Abstract: Device and method for producing a beam. The device includes a rope dispenser arrangement including at least two rope sources; and a winding device. One thread sheet path from a respective rope source to the winding device is assigned to each rope source.

Abstract: A vaporizer filler includes a fill port. The fill port defines an open interior. The open interior is configured to receive the nozzle of an anesthetic bottle. An agent reservoir is configured to receive and store anesthetic agent. A valve is disposed between the open interior and the agent reservoir. At least one vent extends through the fill port. A method of filling a vaporizer includes inserting the nozzle of a bottle filled with anesthetic agent into a vaporizer filler. At least one vent is occluded from fluid communication. Fluid communication between and open interior and an agent reservoir is opened. Anesthetic agent is poured into an agent reservoir of a vaporizer. Fluid communication is closed between the open interior and the agent reservoir. At least one vent is opened to fluid communication with the open interior. Pressure within the open interior is released through the at least one vent.

Abstract: A vaporizer filler includes a fill port. The fill port defines an open interior. The open interior is configured to receive the nozzle of an anesthetic bottle. An agent reservoir is configured to receive and store anesthetic agent. A valve is disposed between the open interior and the agent reservoir. At least one vent extends through the fill port. A method of filling a vaporizer includes inserting the nozzle of a bottle filled with anesthetic agent into a vaporizer filler. At least one vent is occluded from fluid communication. Fluid communication between and open interior and an agent reservoir is opened. Anesthetic agent is poured into an agent reservoir of a vaporizer. Fluid communication is closed between the open interior and the agent reservoir. At least one vent is opened to fluid communication with the open interior. Pressure within the open interior is released through the at least one vent.

Abstract: A system and method is provided for radiation system collimation and design. A plurality of channel waveguide assemblies are provided to be operatively associated with respective beam collimators having varying longitudinal bore diameters. The plurality of channel waveguide assemblies includes a plurality of guides and concentric spacers. The plurality of guides and concentric spacers include varying inner diameters that are configured to be securably nested together by decreasing inner diameters and secured within the longitudinal bores of the respective beam collimators.