112 results about "Bacterial Filter" patented technology

Described herein is a method and apparatus for collecting and separating whole blood into its components, including collecting an amount of plasma and red blood cells. The collection and separation system includes a console and a disposable set. The method may include processing the blood through the centrifuge, collecting plasma, collecting red blood cells and returning red blood cells until a desired plasma volume is reached. Then a final volume of red blood cells and plasma may be collected. The disposable set may include a manifold, a CFC, and various components attached by tubing. These components may include one or more solution bags, blood product bags, bacterial filters, leukofilters, and a donor blood collection tube with access needle.

Described herein is a method and apparatus for collecting and separating whole blood into its components, including collecting an amount of leukoreduced red blood cells. The collection and separation system includes a console and a disposable set. The method may include processing the blood through the centrifuge, collecting the leukoreduced red blood cells, and collecting and returning plasma to the source. The disposable set may include a manifold, a CFC, and various components attached by tubing. These components may include one or more solution bags, blood product bags, bacterial filters, leukofilters, and a donor blood collection tube with access needle.

Described herein is a method and apparatus for collecting and separating whole blood into its components, including collecting an amount of plasma. The collection and separation system includes a console and a disposable set. The method may include processing the blood through the centrifuge, collecting the plasma, and returning red blood cells remaining in the centrifuge to the source. The disposable set may include a manifold, a CFC, and various components attached by tubing. These components may include one or more solution bags, blood product bags, bacterial filters, leukofilters, and a donor blood collection tube with access needle.

A medical ventilator includes a pressure generator for increasing a pressure of gas that produces heat during the operation thereof. A heat sink spaced from the pressure generator is provided for absorbing heat from the pressure generator. A bacteria filter requiring heating in excess of an ambient temperature for the effective operation thereof is coupled in thermal communication with the heat sink. A heat pipe is coupled in thermal communication with the heat sink and the pressure generator for conveying at least part of heat produced by the pressure generator to the bacteria filter via the heat sink.

The invention relates to a dispensing device for a liquid medium, having a medium reservoir for accommodating the medium, having a dispensing opening for dispensing the medium from the medium reservoir, and having a pressure-equalizing channel which opens out into the medium reservoir and has a microbiologically active filter arrangement inserted therein.According to the invention, the filter arrangement has a liquid filter oriented in the direction of the medium reservoir and a bacteria filter oriented away from the medium reservoir.

A medical ventilator includes a pressure generator for increasing a pressure of gas that produces heat during the operation thereof. A heat sink spaced from the pressure generator is provided for absorbing heat from the pressure generator. A bacteria filter requiring heating in excess of an ambient temperature for the effective operation thereof is coupled in thermal communication with the heat sink. A heat pipe is coupled in thermal communication with the heat sink and the pressure generator for conveying at least part of heat produced by the pressure generator to the bacteria filter via the heat sink.

An apparatus and method that allow multiple samples of a liquid in a primary container (here called a ‘pouch’) to be taken with minimal danger of contaminating the liquid in the container during the sampling process are disclosed. In an embodiment, a closed sterile sight chamber is connected with the pouch in a sterile manner to allow fluid to flow into the chamber while at the same time allowing air within the chamber to be displaced through a bacterial filter to atmosphere. The connection between the sight chamber and the pouch is then terminated (severed or closed), isolating the pouch from the sampling apparatus. Only then are samples of liquid withdrawn from the sight chamber, while allowing air to flow into the chamber through the bacterial filter.

Described herein is a continuous-flow centrifuge (CFC) which may be embodied in an automated system for collecting and separating whole blood into its components. The collection and separation system includes a console and a disposable set. Various blood processing procedures which produce specific blood products may be implemented by using a specific disposable set for each process. The disposable set may include a manifold, a CFC, and various components attached by tubing. These components may include one or more solution bags, blood product bags, bacterial filters, leukofilters, and a donor blood collection tube with access needle. The manifold and CFC disk may be included in a cassette that mounts onto the front panel of the console. The console may contain valve actuators, pressure transducers, ultrasonic sensors, a roller pump assembly, a CFC drive system, optical sensors, electronics, software, user interface components, a bar code reader and data acquisition components.

A liquid-medicine injection port device includes: a liquid-medicine inlet which is formed at its upper end; a liquid-medicine outlet which is formed at its lower end which is connectable to a liquid-medicine container; a liquid passageway which connects the liquid-medicine inlet and the liquid-medicine outlet; a germ-removal filter which is provided in the liquid passageway; and a closure which closes the liquid passageway downstream from the germ-removal filter and opens it easily. Further, a liquid-medicine container is provided with this liquid-medicine injection port device. Or further, the liquid-medicine container has a two-chamber structure in which an injection chamber provided with the liquid-medicine injection port device which the germ-removal filter is attached to, and a storage chamber storing a liquid medicine are divided by a weak seal portion having such a strength that it is easily peeled.

In one example embodiment, a dressing connector is described that provides a first fluid path between a first connector and a second connector, and a second fluid path between a third connector and a fourth connector. A liquid barrier may be disposed in the first fluid path. The first fluid path and the second fluid path are generally exposed to an exterior surface of the dressing connector. In some embodiments, a tube may also be bonded to the third connector to provide a third fluid path between the dressing connector and another component. In more particular embodiments, the liquid barrier may be a filter, such as a hydrophobic bacterial filter, a sintered polymer filter, and / or a charcoal filter.

A breathing protector for use in a stoma of a laryngectomized or tracheotomised person is provided. This breathing protector is provided with an inlet and an outlet, such that an air flow in use will pass from the surroundings of said person through said inlet to said outlet, into trachea of said person. The breathing protector further comprises a heat-moisture exchanger (3) and a bacteriological filter (4), such that said air flow will pass through said heat-moisture exchanger and said bacteriological filter when said air flow in use passes through said inlet to said outlet. Also, the breathing protector is provided with a closing member (6) that may be activated to close the communication between said at least one inlet and said at least one outlet.

Manifolds suitable for use in hemodialysis, hemofiltration, hemodiafiltration, and peritoneal dialysis are provided. One or more of the manifolds can include a manifold body and an external tube. The manifold body can include at least one conduit including a first conduit and at least one port including a first port in fluid communication with the first conduit. The external tube can be in fluid communication with the first port and can include a main segment, a first branch segment, and a second branch segment containing at least one bacterial filter. The first branch segment and / or second branch segment can include at least one flow restrictor. Dialysis machines, systems, and kits including one or more such manifold are also provided, as are methods of performing hemodiafiltration using such manifolds.

Described herein is a continuous-flow centrifuge (CFC) which may be embodied in an automated system for collecting and separating whole blood into its components. The collection and separation system includes a console and a disposable set. Various blood processing procedures which produce specific blood products may be implemented by using a specific disposable set for each process. The disposable set may include a manifold, a CFC, and various components attached by tubing. These components may include one or more solution bags, blood product bags, bacterial filters, leukofilters, and a donor blood collection tube with access needle. The manifold and CFC disk may be included in a cassette that mounts onto the front panel of the console. The console may contain valve actuators, pressure transducers, ultrasonic sensors, a roller pump assembly, a CFC drive system, optical sensors, electronics, software, user interface components, a bar code reader and data acquisition components.

A breathing protector for use in a stoma of a laryngectomized or tracheotomised person is provided. This breathing protector is provided with an inlet and an outlet, such that an air flow in use will pass from the surroundings of said person through said inlet to said outlet, into trachea of said person. The breathing protector further comprises a heat-moisture exchanger (3) and a bacteriological filter (4), such that said air flow will pass through said heat-moisture exchanger and said bacteriological filter when said air flow in use passes through said inlet to said outlet. Also, the breathing protector is provided with a closing member (6) that may be activated to close the communication between said at least one inlet and said at least one outlet.

A dispenser for a nutritional composition comprises a water reservoir, water heating means, water discharge means, a bacterial filter between the water heating means and the water discharge means such that heated water passes though the filter prior to discharge from the dispenser, and means to heat surfaces of the dispenser which come into contact with filtered water.

The invention discloses an oxygen production system and method and an oxygen production machine. The oxygen production system comprises an air inlet, an air inlet filter, a compressor, an air inlet silencer, a heat dissipation and water removal device, an integrated adsorption tower, an oxygen flow mete, a bacterial filter, a humidification bottle and an oxygen outlet which are sequentially connected with one another, wherein the integrated adsorption tower and the heat dissipation and water removal device are respectively connected with an air outlet silencer. The oxygen production system also comprises a treatment device, wherein the treatment device is respectively and electrically connected with an air inlet filter, the air inlet silencer, the compressor, the heat dissipation and water removal device, the integrated adsorption tower, the air outlet silencer and the bacterial filter. The oxygen production machine comprises the oxygen production system. The structure is simple, automatic operation and closure of each part can be realized through control of a controller, the degree of automation is high, and high-concentration and sterile oxygen is effectively output.

A filter apparatus is provided which includes a first filter membrane element (40a), and a second bacterial filter membrane element. The first viral filter element (40a) is capable of treating water at a first second flow rate and is adapted to remove contaminants which are larger than a first size, while the second bacterial filter element (40b) is capable of treating water at a second higher flow rate and is adapted to remove contaminants which are larger than a second contaminant size. The first and second filter elements (40a), (40b) may be commonly housed within a sealed housing. An accumulating vessel (60) is placed in fluid communication with an outlet of the first filter element (40a) and an outlet of the second filter element (40b). The filter apparatus includes a duck bill type check valve (75) made of an antimicrobial material intermediate the second filter element (40b) and a dispensing faucet (70).

The invention provides a medical intelligent ventilator comprising an expiration loop and an inspiration loop, which are connected with a breathing mask; the inspiration loop comprises an intelligent air-oxygen mixer, a bacterium filter, an inspiration valve, an inspiration flow meter, a pressure sensor A, a humidifying device and a heater, which are connected successively, the pressure sensor A being installed at the tail end of the inspiration loop. The expiration loop comprises a check valve, an expiration flow meter, a novel expiration valve and a water-removing bottle, which are connected successively. The breathing mask is internally provided with a carbon dioxide concentration sensor. The carbon dioxide concentration sensor, the pressure sensor A, the intelligent air-oxygen mixer, the inspiration flow meter and the expiration flow meter are connected with an ARM processor. The ARM processor is connected with an LED touch screen and an alarm. The medical intelligent ventilator can work according to the autonomous respiration of a patient, can maintain positive end-expiratory pressure of a patient, can discharge gas exhaled by a patient, is safer and can give alarm automatically.

A breathing protector for use in a stoma of a laryngectomized or tracheotomised person is provided. This breathing protector is provided with an inlet and an outlet, such that an air flow in use will pass from the surroundings of said person through said inlet to said outlet, into trachea of said person. The breathing protector further comprises a heat-moisture exchanger (3) and a bacteriological filter (4), such that said air flow will pass through said heat-moisture exchanger and said bacteriological filter when said air flow in use passes through said inlet to said outlet. Also, the breathing protector is provided with a closing member (6) that may be activated to close the communication between said at least one inlet and said at least one outlet.

The invention discloses hydrolat having a whitening effect. Fresh flowers and weed are distilled by extract of a compound traditional Chinese medicine containing ginseng, safflower, white paeony root, Ganoderma lucidum, radix astragali, radix angelicae sinensis, ligusticum wallichii, licorice root, bighead atractylodes rhizome, coix seed, radix ampelopsis, poria cocos, white muscardine silkworm and common bletilla tuber, wherein the extract replaces distilled water, then the distillate is collected, sealed and aged, and then the distillate is filtered through a film bacterial filter so that bacteria are removed. The hydrolat has effects of inhibiting tyrosinase activity and removing free radicals. The hydrolat does not contain any non-edible chemical ingredients, produces small irritation, has no toxic or side effect and is a natural whitening and skin-care product.

The invention relates to a dispensing device for a liquid medium, having a medium reservoir for accommodating the medium, having a dispensing opening for dispensing the medium from the medium reservoir, and having a pressure-equalizing channel which opens out into the medium reservoir and has a microbiologically active filter arrangement inserted therein.According to the invention, the filter arrangement has a liquid filter oriented in the direction of the medium reservoir and a bacteria filter oriented away from the medium reservoir.

The invention relates to an endogenous gas nose expiration sampling and analyzing device. The endogenous gas nose expiration sampling and analyzing device is composed of an expiration pressure monitoring module (100), a nose sampling module (200) and an analysis module (300), wherein the expiration pressure monitoring module (100) is composed of a mouth expiration connector (101) and a resistance part (103) which are connected in series, and a gas circuit is connected with a pressure sensor (102); the nose sampling module (200) is composed of a nose inspiration connector (201), a nose expiration connector (202), a bacterial filter (203), a three-way valve I (204), a three-way valve II (205), an air chamber (206), an environment filter (207) and a variable flow sampling module (400); the three-way valve I (204) and the three-way valve II (205) are used for switching collected nose sample gas or filtered environmental gas; and the analysis module (300) is composed of an analysis pump (301), a gas humidity regulator (302) and a NO sensor (303) which are connected in series.

The application relates to a closing element for closing a container for samples for analysis, particularly biological samples. The application also relates to an assembly of a container and a closing element connected to the container. The application also relates to a device and method for analyzing samples. The closure comprises a vent channel (6) with a bacterial filter (7), a penetrable element (5) and the vent channel is configured to be connected with an analyzer and can be opened and closed.

The invention relates to a special bacterial manure microcapsule preparation for mangrove. The preparation is characterized in that: s: 1) the preparation consists of a degradable micro-granular capsule with azotobacter and phosphate-dissolving bacteria for promoting growth of mangrove; 2) bacterial seeds of the azotobacter for promoting growth of mangrove is cultivated by an OAB culture medium; bacterial seeds of the phosphate-dissolving bacteria for promoting growth of mangrove is cultivated by a phosphate-dissolving bacteria selective culture medium SRSM; and 3) the degradable micro-granular capsule is prepared from stock solution of a wall material, stock solution of a core material, a hardener and a solidifying liquid. The preparation method is characterized by comprising the following steps: 1) the zotobacter and the phosphate-dissolving bacteria for promoting growth of mangrove are collected, sifted and cultured; 2) the microcapsule preparation is prepared; and 3) the bacterial manure microcapsule preparation is stored. The structure of special equipment has the characteristics that the special equipment comprises an air compressor (1), an air filter (2), a bacteria filter (3), a granule spraygun (4), a glue solution bottle (5), a vibrator (7) and a filter (8). The bacterial manure microcapsule preparation has the advantages of simple process, convenient operation, stable product quality, long shelf life and convenient storage and transportation.

The invention discloses a Burkholderia sp. Strain ES-89 for preventing and treating fungal diseases of plants as well as a culture method and application. The culture method comprises the following steps: A, inoculating an ES-89 strain into a nutrient broth culture liquid for activation; B, inoculating the activated ES-89 into a triangular flask with the nutrient broth culture liquid, and performing shake cultivation; C, centrifuging fermentation broth obtained from shake cultivation under a certain condition, and filtering an upper layer of fermentation broth by a bacterial filter to obtain sterile supernate; D, washing the bacterium with sterile water to prepare a bacterial suspension, and storing the fermentation broth, the fermentation supernate and the bacterial suspension. The strain is preserved with the preservation number of CCTCC, CCTCC NO: M 2016665, and the strain ES-89 can be applied to preparation of medicines for treating or preventing plant pathogenic fungi. The strain has an inhibition function on coptis chinensis leaf spot diseases and the like, and can be applied to prevention and treatment on multiple plant diseases. The prevention and treatment effect of the strain on the coptis chinensis leaf spot diseases can be 88% or greater, the culture method is feasible, the operation is simple and convenient, the pollution in the production process is reduced, solvent poisoning is avoided, and the application prospect is relatively good.

The invention discloses a metal organic framework and metal nano ion composite filter membrane and a preparation method and application thereof. The metal organic framework and metal nano ion composite filter membrane is firstly prepared, then the metal organic framework and metal nano ion composite filter membrane is loaded in a bacterium filter, an organic pollutant solution is added in a needle tube, the organic pollutant adsorption of the metal organic framework and metal nano ion composite filter membrane is achieved through an injection filtration method, and finally, surface-enhanced Raman detecting is directly conducted. The materials required by the preparation method are simple, at the same time, the prepared composite filter membrane is stable in property, and the composite filter membrane can be recycled and is low in cost. The prepared metal organic framework and metal nano ion composite filter membrane can rapidly enrich organic pollutant molecules and achieve the rapid detection of the organic pollutants through the combination with the surface enhanced Raman spectroscopy.

A system for preventing cross-contamination in single-limb ventilators is described. In one embodiment, the system includes an airflow generator connected in-line to a humidifier, a first check valve and a patient interface by a gas flow circuit. A controller is electrically coupled to the airflow generator, and a cartridge is connected to the gas flow circuit between a first point downstream of the humidifier and a second point upstream of the patient interface. The cartridge includes a bacteria filter and the first check valve. A method for preventing cross-contamination in single-limb ventilators and a method for providing gaseous flow through a single-limb ventilator are also described.

An efficient autotrophic denitrification method of a bacterial filter belongs to the wastewater autotrophic nitrogen removal field. The efficient autotrophic denitrification method comprises the steps of: inoculating a CANON process biological membrane and successfully activating the autotrophic nitrogen removal bacterial filter in an anaerobic-first and aerobiotic-later activation manner; and after the reactor is successfully activated, increasing the gas-water ratio of the reactor, namely the ratio of aeration rate to water inlet flow, by controlling the water inlet flow and the aeration rate, thereby continuously improving the removal load of the reactor. When the ammonia nitrogen removal rate of the reactor is greater than 99%, the water inlet flow is increased; when the concentration of nitrite nitrogen in yielding water is less than 30 mg / L, the aeration rate is increased; and finally, the total nitrogen removal rate of the reactor reaches 80-89% and the total nitrogen removal load reaches 1.0-3.11 kgN.m<-3>.d<-1>, and therefore, efficient autotrophic nitrogen removal is realized. The efficient autotrophic denitrification method provided by the invention solves the problem of low treatment load of the full autotrophic nitrogen removal reactor; and an efficient implementing method is provided for full autotrophic nitrogen removal of the bacterial filter.

The invention relates to a bacteria filtering cup and application thereof to bacteriostatic activity detection of biocontrol bacteria metabolin. According to the invention, the bacteria filtering cup which is simple in structure is designed according to principles that bacteria thallus is impermeable to an agar culture medium, but bacteria metabolin can disperse in the agar culture medium and bacteria fermentation liquor is impermeable to the agar culture medium, and the bacteria filtering cup is applied to bacteriostatic activity detection of metabolin in the biocontrol bacteria fermentation liquor. The bacterial filtering cup is suitable for bacteriostatic activity detection of the biocontrol bacteria fermentation liquor in the development process of biopesticides, screening of bacterial strain culturing formulas, optimization of fungicide production process and stability detection of bacteriostatic active substances of biopesticide materials.