114 results about "Fluid composition" patented technology

Described here are systems and methods for accessing Schlemm's canal and for delivering an ocular device or fluid composition therein. The ocular devices may maintain the patency of Schlemm's canal without substantially interfering with transmural fluid flow across the canal. The fluid composition may be a viscoelastic fluid that is delivered into the canal to facilitate drainage of aqueous humor by disrupting the canal and surrounding trabeculocanalicular tissues. Tools for disrupting these tissues and minimally invasive methods for treating medical conditions associated with elevated intraocular pressure, including glaucoma, are also described.

A system performs a method for characterizing passage of a patient fluid through a conduit. The method includes quantifying flow of fluidic content through a conduit, where the fluidic content includes a patient fluid, estimating a concentration of a fluid component of the patient fluid in the fluidic content, and characterizing passage of the patient fluid loss through the conduit based on the quantified flow and the concentration of the fluid component. At least one of the quantified flow or the concentration of the fluid component is based on sensor data from a sensor arrangement coupled to the conduit. Other apparatus and methods are also described.

Described here are systems and methods for accessing Schlemm's canal and for delivering an ocular device or fluid composition therein. The ocular devices may maintain the patency of Schlemm's canal without substantially interfering with transmural fluid flow across the canal. The fluid composition may be a viscoelastic fluid that is delivered into the canal to facilitate drainage of aqueous humor by disrupting the canal and surrounding trabeculocanalicular tissues. Tools for disrupting these tissues and minimally invasive methods for treating medical conditions associated with elevated intraocular pressure, including glaucoma, are also described.

Described here are systems and methods for accessing Schlemm's canal and for delivering an ocular device, tool, or fluid composition therein. The ocular devices may maintain the patency of Schlemm's canal without substantially interfering with transmural fluid flow across the canal. The fluid composition may be a viscoelastic fluid that is delivered into the canal to facilitate drainage of aqueous humor by disrupting the canal and surrounding trabeculocanalicular tissues. Some systems described here may be configured to cut or tear the trabecular meshwork with the body of an elongate member located within Schlemm's canal. Other tools for disrupting these tissues and minimally invasive methods for treating medical conditions associated with elevated intraocular pressure, including glaucoma, are also described.

Systems and methods for infection prevention and treatment in biological conduits using electroporation or pulsed field ablation (PFA). The system includes an elongate member, such as a dialysis catheter, vascular access device, or peritoneal dialysis conduit, with at least one electrode positioned along, within, or around the member. A control unit applies pulsed electric fields to inhibit microbial colonization, disrupt bacterial biofilms, and alter permeability of bacterial or endothelial cells to enhance sterility or fluid exchange. The system may use real-time impedance monitoring, microbial detection, or fluid composition analysis to adjust electroporation parameters. Electroporation may synchronize with dialysis cycles or antimicrobial lock solutions. The method includes automated, clinician-controlled, or sensor-triggered treatments to reduce infections and improve device longevity. The system provides an alternative or augment to antibiotics, reducing the risk of drug-resistant infections while improving the longevity and safety of medical implants.

The disclosure relates to compositions and methods that include fluid compositions that include nanoparticles and an oxidizer. The fluid compositions can be used as hydraulic fracturing fluids during drilling operations.

Described here are systems and methods for accessing Schlemm's canal and for delivering an ocular device or fluid composition therein. The ocular devices may maintain the patency of Schlemm's canal without substantially interfering with transmural fluid flow across the canal. The fluid composition may be a viscoelastic fluid that is delivered into the canal to facilitate drainage of aqueous humor by disrupting the canal and surrounding trabeculocanalicular tissues. Tools for disrupting these tissues and minimally invasive methods for treating medical conditions associated with elevated intraocular pressure, including glaucoma, are also described.

A ocular irritant composition for personal defense includes a fatty acid at a concentration ranging from 5 wt % to 10 wt % of the composition, a thickening agent at a concentration ranging from 1.75 wt % to 8.75 wt % of the composition, a detergent at a concentration ranging from 1.03 wt % to 4.07 wt % of the composition, a surfactant at a concentration ranging from 2 wt % to 15 wt % of the composition, and water at a concentration ranging from 66 wt % to 90.21 wt % of the composition.

A method for determining the composition of a mixed working fluid in a temperature control system comprises the steps of: detecting the characteristics of the working fluid flowing through a fluid conduit at a specific location in the fluid conduit using a sensor; calculating a first concentration of a first refrigerant in the mixed working fluid at that location; and calculating a second concentration of a second refrigerant in the mixed working fluid at that location. The calculation of the first concentration of the first refrigerant is based on the detected characteristics and stored information. The stored information includes a first stored value of the first refrigerant and a second stored value of the second refrigerant. The calculation of the second concentration of the second refrigerant is also based on the detected characteristics and stored information. This calculation is based solely on the detected characteristics and stored information.

A method of thermally shocking a subsurface formation may comprise introducing an endothermic fluid composition into a wellbore fluidly connected to the subsurface formation, the endothermic fluid composition comprising an aqueous solution, ammonium chloride, and sodium hydroxide; reacting the ammonium chloride and sodium hydroxide, thereby decreasing a temperature of the endothermic fluid and producing ammonia; and exposing the reacted endothermic fluid composition to the subsurface formation, thereby thermally shocking at least a portion of the subsurface formation and inducing one or more fractures in the same.

In accordance with some embodiments herein, an apparatus is provided. The apparatus includes a conduit, a first electrode, a second electrode, a power source, a valve, and a controller. The conduit is configured to conduct a mixture along a flow path. The first electrode is placed proximal the flow path defined by the conduit. The second electrode is placed proximal the flow path defined by the conduit. The power source is configured to apply a voltage across the first electrode and the second electrode. The valve is coupled to the conduit and configured to control flow of the mixture through the flow path defined by the conduit. The controller is configured to determine a first capacitance of a first capacitor established by the first electrode, the second electrode, and the mixture flowing along the flow path. The controller controls the valve based upon the first capacitance.

A system for recovering ammonia from an endothermic reaction in a subsurface formation may comprise a subsurface formation; a wellbore fluidly connected to the subsurface formation; a tubing string positioned within the wellbore, wherein the wellbore and an exterior of the tubing string together define a wellbore annulus; a wellhead comprising one or more injection lines and one or more return lines fluidly connected to the wellbore; one or more fluid injection pumps configured to supply an endothermic fluid composition to the subsurface formation through the one or more injection lines and the tubing string, the endothermic fluid composition operable to form ammonia when reacted; and one or more ammonia retention vessels fluidly connected to the return lines for receiving the ammonia through the wellbore annulus.

To provide a composition and a method capable of storing one or more microorganisms in a liquid state for a long period of time at high density without functional deterioration of the microorganisms and while suppressing contamination by other microorganisms.SOLUTION: Provided is a plastic fluid composition comprising: (1) a microorganism; and (2) a polysaccharide or nanofibers made of the polysaccharide, where when the microorganism is a bacterium, the microorganism is contained at a microbial density of at least 1×107 CFU / mL and dispersed in the composition, and when the microorganism is a fungus, the microorganism is contained at a microbial density of at least 1×103 CFU / mL and dispersed in the composition.SELECTED DRAWING: None

Inhibitors of hydrogen embrittlement, which can include a terminal alkene or a terminal alkyne, such as an enyne are described. Compositions, such as treated fluid compositions, that include an inhibitor of hydrogen embrittlement, such as a terminal alkyne or a terminal alkene are described herein. Methods of treating a fluid, generating energy, transporting, or storing a treated fluid are also provided.

A system for recovering ammonia from an endothermic reaction in a subsurface formation may comprise a subsurface formation; a wellbore fluidly connected to the subsurface formation; a tubing string positioned within the wellbore, wherein the wellbore and an exterior of the tubing string together define a wellbore annulus; a wellhead comprising one or more injection lines and one or more return lines fluidly connected to the wellbore; one or more fluid injection pumps configured to supply an endothermic fluid composition to the subsurface formation through the one or more injection lines and the tubing string, the endothermic fluid composition operable to form ammonia when reacted; and one or more ammonia retention vessels fluidly connected to the return lines for receiving the ammonia through the wellbore annulus.

A method for in-line sampling for a medical device includes prompting an operator of a medical device to establish a fluid communication between a fluid component collection set as received by the medical device and a sample system for sample collection, where the medical device prohibits removal of the fluid component collection set or a component thereof from fluid communication with the medical device until sample collection using the sample system is complete and the establishing of fluid communication between the fluid component collection set includes prompting the medical device to interpret a code disposed on an exterior-facing surface of the sample tube.

Disclosed is a gradient proportioning valve for liquid chromatography that includes a plurality of inlet ports configured to receive a plurality of fluids, a manifold connected to each of the plurality of inlet ports configured to mix the plurality of fluids in a controlled manner to provide a fluid composition, the manifold including a plurality of conduits internal to the manifold, each of the plurality of conduits receiving fluid through a respective one of the plurality of inlet ports, an actuation mechanism having a piston located within a bored structure surrounding the piston, the actuation mechanism configured to open and close at least one of the plurality of conduits in a controlled manner where the piston and the bored structure have a tight tolerance configured to create a fluid tight seal, and a common outlet port configured to receive the fluid composition.

This disclosure provides certain strong cation-modified ion exchange resins and membranes useful for carrying out the removal of metal and metal ion contaminants in fluid compositions. Filtered liquid compositions with significantly reduced amounts of metals can be used in a microelectronic manufacturing process, such as liquids for removing photoresist. The cation-modified ion exchange resins and membranes of the disclosure can be configured for use in a microelectronic manufacturing system, which can be utilized in the system as a point of use metal-removal feature for liquids entering the system. Advantageously, the filter materials and methods of this disclosure showed considerable improvement in preventing degradation and the formation of color bodies and dimeric and oligomeric materials from ketones (e.g., cyclohexanone) in the liquid compositions while not compromising the filter material's ability to remove undesired metal ions.

This invention discloses a visualized microfluidic experimental device for gas-water-oil-solid-biomass multiphase and multicomponent fluids, comprising a fluid injection device and an experimental platform connected sequentially by pipelines. The fluid injection device includes an experimental pump; a microflow control chip is installed on the experimental platform; the experimental pump and the microflow control chip are connected by pipelines. This device, through the microfluidic chip, can observe in real time the transport patterns of fluids with different gas-water-oil-solid-biomass ratios and different chemical components in pipelines, pores, and fissures during experiments, as well as the particulate matter carrying capacity under different apparent volume ratios of bubbles, different flow velocities, different surfactants, and different fluid composition conditions. Furthermore, using this experimental device, the fluid within the microfluidic chip can be observed with a microscope during experiments, maximally reproducing the original experimental environment, clearly observing the fluid's movement direction and flow interface during the experiment, and dynamically monitoring the experimental dynamics in real time.

A fluid sampling device, the device having a fluid composition sensor configured to receive a fluid sample and capture a plurality of particles from the fluid sample at a collection media, wherein the fluid composition sensor is further configured to generate particle data associated with the plurality of particles using a particle imaging operation, and a controller, the controller being configured to: determine an optimal sample volume associated with a sample collection operation based at least in part on a particle load condition defined by the plurality of particles captured at the collection media during the sample collection operation, and update one or more operational characteristics of the fluid composition sensor such that the sample collection operation is defined at least in part by the optimal sample volume.

Completion fluid compositions designed for fluid loss control in a subterranean formation. In particular, the compositions comprise an aqueous base fluid, a suspension polymer, a fluid loss control additive, and a degradable bridging agent. The completion fluid compositions provide a way to temporarily seal a wellbore communicating with a subterranean formation and enables completion or workover operations to be performed, after which the composition can be removed by contact with a mild clean-up composition.

An ultrasonic balloon catheter (1), which is introduced into the cardiovascular system and treats stenosis or occlusion of the heart or peripheral blood vessels, is provided with: a flexible catheter tube (11); the balloon (12) is made of an elastic material and provided with an expansion part (121) for expanding and contracting and neck parts (122) arranged at the two ends of the expansion part (121) respectively, the balloon (12) is fixedly arranged on the outer side of the catheter hose (11) through the neck parts (122), and the expansion part (121) and the neck parts (122) form an expansion space on the outer tube wall of the catheter hose (11) so that the fluid composition can be injected into the expansion space from the opening in the outer tube wall; and the ultrasonic probe (13) is arranged in the expansion part (121) of the balloon (12), is sleeved outside the inner pipe fitting (111) and at the opening in the outer pipe wall, and is used for emitting ultrasonic waves and inducing microbubbles in the fluid composition in the expansion space to generate a cavitation erosion effect.

Provided herein are mixed ligand metal organic framework (ML-MOF) materials having rectangular grids characterized by the general formula MaMbF6-n(O / H2O)n(Ligand′)x(Ligand″)y(solvent)z, which are effective for capture of carbon dioxide from a fluid composition.

To provide devices and methods for collecting and characterizing particles suspended within fluid.SOLUTION: A device for detecting fluid particles and their characteristics may comprise a fluid composition sensor configured to receive a volume of fluid. The fluid composition sensor has a collection media housing configured to receive a portion of collection media, a pump for moving the volume of fluid over the collection media housing, an imaging device configured to capture an image of particles on the collection media, and particle matter mass concentration calculation circuitry configured to calculate a total particle matter mass. The particle matter mass concentration calculation circuitry is connected with the imaging device and the pump. The particle matter mass concentration calculation circuitry is configured to adjust the volume of fluid moving over the collection media housing.SELECTED DRAWING: Figure 1

A fluidic geometry to produce uniform oscillating sprays is described. The geometry can be embodied as an insert, housing, or system in which an inlet feeds an interaction chamber. Four islands define the perimeter of an interaction chamber having a cloverleaf-like shape, with five power nozzles positioned symmetrically with narrowing walls feeding into this chamber. The chamber itself has a greater depth than the power nozzles owing to a step, and a fifth island is disposed on the central axis above the throat and beneath the upper-most, central power nozzle. This arrangement exhibits consistent cold and high temperature performance for a range of fluid compositions and operating conditions.

A method of making one or more alkyl thiophosphoric triamides.

The present invention discloses a method for inverse calculation of the fluid composition of a condensate gas reservoir, comprising: obtaining the phase state data of a fluid sample; obtaining an equation of state and parameters based on the phase state data; establishing a numerical simulation model of the component numbers of the condensate gas reservoir; and optimizing the numerical simulation model of the component numbers of the condensate gas reservoir based on the equation of state, parameters and actual production data to obtain the original components of the fluid sample. The method for inverse calculation of the fluid composition of the condensate gas reservoir according to the present invention obtains the phase state data of the fluid sample, establishes the equation of state, parameters and the numerical simulation model of the component numbers of the condensate gas reservoir, and through optimizing and fitting the numerical simulation of the component numbers, inversely calculates the fluid composition and parameters of the condensate gas reservoir under the original conditions, providing basic fluid data for numerical simulation and the development of the condensate gas reservoir.

A fluid composition capable of exhibiting elastic turbulence when pumped through a flow path that forces a change of direction of a flow line, and comprising a solution of two or more two classes of flexible linear polymers. The first class has an average molecular weight of at least 10 mega Daltons and the second class has an average molecular weight in the range of 0.25 to 5 mega Daltons. The concentration of the first polymer is sufficient to achieve elastic turbulence regardless of the presence of the second class. The concentration of the second class is greater than the concentration of the first class. When flowing to or out of the chamber at low shear, the flow path will cause elastic turbulence, and the second polymer will reduce elastic instability and pressure drop resulting therefrom, thereby reducing pumping energy requirements.