40 results about "Liquid ventilation" patented technology

A surgical system having a cassette with an aspirant collection chamber and an aspiration exhaust line that drains into the aspirant collection chamber. A fluid line containing a valve allowing fluid from the irrigation fluid container to be vented into the aspirant collection chamber. A source of pressurized air is connected to the irrigation fluid container and is used to pressurize the fluid container. When the pressure within the fluid container needs to be increased, pressurized air from the pressurized air source is allowed to enter the fluid container. When the pressure within the fluid container needs to be decreased, irrigation fluid is allowed to be bled out of the fluid container and inter the collection chamber. In this manner, a direct fluidic connection with the gas contained within the fluid container does not need to be maintained.

Submerged gas diffuser assemblies configured to aerate liquid suspensions in reservoirs or deep shafts with enhanced aeration contact patterns and adjustable aeration rates. Aeration contact patterns and rates are varied by the adjusting the spatial configuration of gas permeable membranes, altering the fluid flow patterns around the membranes, manipulating trans-membrane pressures across membranes, varying the sequence of aeration of liquid within the fluid flow patterns, expanding the membrane surface area, and/or by selectively occluding certain portions of membrane surface area of the membrane assemblies. The membrane assemblies are designed to prevent, control, or mitigate membrane fouling and hydro lockup.

The invention discloses a method for producing Bacillus subtilis for feeds by fermenting high-salt-content amino acid wastewater, which comprises the following steps: 1. habituated culture of feed strain: carrying out continuous habituated culture to enhance the tolerance of the strain to high-salt-content amino acid wastewater; and 2. fermentation of strain: under appropriate fermenting conditions, carrying out liquid ventilation culture in a fermentation tank for some time to obtain the Bacillus subtilis for feeds. The microzyme is centrifugated, collected, dried in a 70 DEG C drying oven to constant weight, and weighed. The calculation indicates that every liter of high-salt-content amino acid wastewater can obtain 35g of Bacillus subtilis at the maximum. The method can effectively utilize amino acids, microelements and growth factors contained in the wastewater, greatly lowers the fermenting cost of the Bacillus subtilis for feeds, greatly reduces the sewage treatment load, achieves the comprehensive utilization effect, and has obvious economic and social benefits.

The invention discloses a spray distillation device, which comprises at least one evaporation chamber, a feed solution inlet pipe, a raw material preheater, a filter, a pump, a feed solution storage tank and a finished product storage tank, wherein the evaporation chamber comprises a shell, a feed solution atomizer, a water vapor distributor and a reflux treatment device; an easy-to-volatilize phase outlet is formed in the top of the shell, and a difficult-to-volatilize phase outlet is formed in the bottom; the feed solution atomizer and the water vapor distributor are mounted in the shell; the feed solution atomizer is connected with the feed solution inlet pipe; the water vapor distributor is connected with a water vapor inlet pipe; the reflux treatment device is mounted in the shell, and consists of a reflux conduit, a water spraying ring, a filler net loop, a residual liquid ventilation cap, a residual liquid discharge pipe and a mounting plate. According to the spray distillation device, a spray distillation technology is adopted instead of an existing mass and heat transfer distillation manner employing an orifice plate or a filler as a main condition, so that heat energy can be completely and effectively utilized, energy resources can be saved, waste liquid discharge reaches the standard, and prominent effects are achieved.

Method for treatment of a body of a mammal in cardiac arrest, comprising the step of performing a therapeutic hypothermia of the body after the cardiac arrest has occurred, said therapeutic hypothermia comprising:

• • cooling the body to a target temperature during a cooling time period, said cooling being performed by total liquid ventilation which comprises alternately filling lungs of the body with a cooling liquid and removing from the lungs said cooling liquid,
  • maintaining the body at the target temperature for a hypothermia duration.

Converting a liquid ring pump which vents sealing liquid (compressant) from the working chamber of the pump to a liquid ring pump having a gas venting system by retasking a selected passage of the liquid ring pump. The passage is selected from a group of passages consisting of (1) a sealing liquid introduction passage and (2) a sealing liquid vent passage.

The invention relates to a total liquid ventilation respirator, and aims at providing a respirator which can accurately regulate and control respiration parameters and carry out feedback regulation. According to the technical scheme, the total liquid ventilation respirator comprises a liquid conveying channel. The liquid conveying channel comprises an oxygenator assembly, a buffer pool and a piston pump assembly. The oxygenator assembly comprises a first oxygenator and a second oxygenator, wherein the upper portion of the first oxygenator and the upper portion of the second oxygenator are communicated through a catheter, and the lower portion of the first oxygenator and the lower portion of the second oxygenator are respectively provided with a gas inlet for outside source oxygen. The upper portion of the buffer pool is communicated with the second oxygenator through a catheter. The piston pump assembly is composed of an inspiration piston pump and an expiration piston pump, wherein a liquid inlet of the inspiration piston pump is communicated with the lower end of the buffer pool through a catheter, a Y-shaped catheter is arranged between the inspiration piston pump and the expiration piston pump, a first end of the Y-shaped catheter is connected with a liquid outlet of the inspiration piston pump, a second end of the Y-shaped catheter is connected with a liquid inlet of the expiration piston pump, a third end of the Y-shaped catheter is connected with the lung of a patient, and a liquid outlet of the expiration piston pump is communicated with the first oxygenator through a catheter.

The invention discloses a method for producing debaromyces hansenii for feeds by fermenting high-salt-content amino acid wastewater, which comprises the following steps: 1. habituated culture of feed strain: carrying out continuous habituated culture to enhance the tolerance of the strain to high-salt-content amino acid wastewater; and 2. fermentation of strain: under appropriate fermenting conditions, carrying out liquid ventilation culture in a fermentation tank for some time to obtain the microzyme for feeds. The microzyme is centrifugated, collected, dried in a 70 DEG C drying oven to constant weight, and weighed. The calculation indicates that every liter of high-salt-content amino acid wastewater can obtain 150g of debaromyces hansenii at the maximum. The method can effectively utilize amino acids, microelements and growth factors contained in the wastewater, greatly lowers the production cost of the debaromyces hansenii for feeds, greatly reduces the sewage treatment load, achieves the comprehensive utilization effect, and has obvious economic and social benefits.

The invention relates to a lung cavity venting liquid whose main composition is fluorine decahydronaphthalene, its boiling point is 140-142 deg. C, its specific density is above 1.9. The invention realizes a major tool for liquid venting, which can increase lung compliance substantially.

The invention provides a biological culture device for culturing a tissue engineered lung. The biological culture device comprises a main vessel, an auxiliary vessel and a breathing simulation device, wherein the main vessel is used for storing a tissue culture solution and a biological material, and the biological material can be subjected to cell regenerative culture in the tissue culture solution; the auxiliary vessel is used for storing a small airway culture solution and is connected with the main vessel through a first guide pipe to form a closed airway breathing loop; the breathing simulation device is connected to the main vessel through a second guide pipe and is used for simulating the negative-pressure ventilation for the biological material. The biological culture device provided by the invention is simple in operation and can be used for simulating the characteristics (blood perfusion and liquid ventilation) of fetal lung development, creating culture and development environments and a physical stimulation environment for culturing the tissue engineered lung and ensuring that an acellularized scaffold is cultured in a simulated physiological environment with similar mechanical tension and necessary components for similar normal fetal blood circulation, breathing movement and fetal lung growth and development.

A device aerates a drinkable liquid inside a handheld container. An aerator is detachably mounted on the container in a mounted position. The aerator has an aerator portion that extends into the liquid and that is held adjacent an interior surface of a side wall of the container in the mounted position. The aerator portion has a multitude of turbulence-inducing agitating elements, such as pores, through which the liquid in the container flows to, and impacts against, the interior surface of the side wall of the container, and mixes with ambient air in the container, when the container is manually swirled to aerate the liquid.

The invention comprises a method/process of moving bed fermentation of a liquid carried out by microorganisms in a fermenter/reactor wherein the moving bed comprises a device containing within or on its surface a porous material capable of providing anchorage to bacteria capable of performing fermentation/degradation of organic load and the device is moveable throughout the column of the liquid in the fermenter/reactor when the device is added to the fermenting liquid and the fermenting liquid is agitated/aerated. This device is an artificial device. The method/process of this invention comprises fermentation of raw sewage or any other liquid containing fermentable organic dissolved solids, This invention comprises a device containing within or on its surface a porous material capable of providing anchorage to bacteria capable of performing fermentation/degradation and the device is moveable throughout the column of the liquid in the fermenter/reactor/aeration tank when the device is added to the fermenting liquid and the fermenting liquid is agitated/aerated by blower/aerator or any other means of improving aeration of the liquid. The porous material comprises activated carbon as granules or otherwise. In one embodiment, the device of this invention is impregnated with live bacteria required for the aerobic fermentation.

The present invention relates to a method for inoculation by adopting streptomyces aureofaciens freezing shake flask hypha to replace spore. The method comprises: (1) spore culture, (2) shake flask hypha culture, (3) seed culture, and (4) deep liquid ventilation fermentation. According to the present invention, a new inoculation process (shake flask hypha fermentation) is emphatically developed, the freezing shake flask hypha is adopted to replace the spore to be inoculated so as to reduce a use amount of the spore, improve consistency of a fermentation seed age and seed quality, stabilize microbial metabolism, reduce seed preparation workload and labor intensity, and improve resistance production capacity and work efficiency of streptomyces aureofaciens.

The invention provides a production raw material of liquid ventilation fluid and a material for an ophthalmic surgery and a continuous preparation method of the production raw material. The productionraw material comprises fluorine and an octane organic matter, the molar ratio of the fluorine to the octane organic matter is 20: 1-25: 1, the fluorine is mixed gas of pure fluorine or fluorine and inert gas, and the concentration of the fluorine is not lower than 10%; and the octane organic matter is a mixture of octane, an octane homologue or a mixture of the octane organic matter and inert gas. The production raw material is suitable for being produced continuously on a large scale, reaction conditions are easy to control, the yield is high, by-products are less, reaction products are easyto separate and purify, and waste gas, waste water and solid wastes are not discharged in a production process. By the method of the invention, perfluorooctane of which the purify is greater than orequal to 99% can be prepared, and can serve as the production raw material of liquid ventilation fluid and a preparation for the ophthalmic surgery.

An apparatus to lift liquid from a reservoir of liquid and aerate the liquid. A downwardly opening enclosure has an inlet for liquid to flow from a reservoir into the enclosure. The enclosure includes a channel for the liquid to flow upward. An inner cone within an outer cone forms a gas chamber connected to an external gas compressor. Holes in the gas chamber walls allow the gas to flow into the channel and aerate the liquid which is returned to the reservoir.

The invention discloses a method for producing beer yeast for feeds by fermenting high-salt-content amino acid wastewater, which comprises the following steps: 1. habituated culture of feed strain: carrying out continuous habituated culture to enhance the tolerance of the strain to high-salt-content amino acid wastewater; and 2. fermentation of strain: under appropriate fermenting conditions, carrying out liquid ventilation culture in a fermentation tank for some time to obtain the microzyme for feeds. The microzyme is centrifugated, collected, dried in a 70 DEG C drying oven to constant weight, and weighed. The calculation indicates that every liter of high-salt-content amino acid wastewater can obtain 30g of beer yeast at the maximum. The method can effectively utilize amino acids, microelements and growth factors contained in the wastewater, greatly lowers the production cost of the beer yeast for feeds, greatly reduces the sewage treatment load, achieves the comprehensive utilization effect, and has obvious economic and social benefits.