87results about How to "Even dose" patented technology

Devices and methods are provided for applying vacuum near to devices for delivering treatments to tissue adjacent a body cavity, effective to draw adjacent tissue near to such devices and to enhance treatment of the tissue. Body cavities include natural body cavities and cavities remaining after removal of tissue such as cancerous tissue. A device may include an inner balloon assembly with an inflation conduit. A sheath assembly having a fluid-permeable sheath wall may enclose the inner balloon assembly. Vacuum applied to the space between the sheath and the inner balloon is useful to draw tissue into contact with the device, improving treatment effectiveness. Methods for treating tissue with such devices and systems are also provided. Treatments may include providing radioactive material for radiation treatment, providing chemotherapeutic material for chemotherapy, providing thermal treatment, and combinations thereof. Systems may include devices of the invention and a vacuum source.

A gas burner comprising a section for mixing combustible gas with air; a cover lid closing the mixing section; and a crenellated wall comprising first segments with a first thickness and one or more second segments with a second thickness greater than the first thickness, the second segment allows the cover lid to be sitting and placed over the wall, and main portholes which are constant for a determined length of said main portholes from an inside towards an outside of the crenellated wall, and near the outside of the crenellated wall, the height of the porthole is decreased by virtue of an α angle; one or more secondary portholes with a size smaller than the main portholes, wherein the at least one secondary porthole has a change in direction in such a way, that the height of the at least one secondary porthole decreases from the inside towards the outside of the crenellated wall according to a β angle until the height of the porthole achieves a constant height near the outside of the wall; and two or more tertiary portholes per each first and second segment with a half cane shape, the diameter of each half cane being equal to the width and depth of said tertiary porthole, wherein said tertiary portholes are of lesser size than the at least one secondary porthole.

The invention relates to a method for irradiating partly formed packages (10) with electron beam irradiation from at least one electron beam sterilizing device (18), characterized in that it comprises: providing at least one partly formed package (10) to be irradiated in a gaseous environment, and exposing the gaseous environment to a pre-determined pressure regulation cycle and exposing the partly formed package (10) to irradiation at least during a portion of said pressure regulation cycle. The invention also relates to a device for realizing said method. The invention further relates irradiation of a packaging material web.

The invention provides a formulation to be administered as dry powder for inhalation suitable for efficacious delivery of low-dosage strength active ingredients to the low respiratory tract of patient. In particular, the invention provides a formulation comprising microparticles constituted of microparticles of a low-dosage strength active ingredient and microparticles of an excipient wherein the MMD of the microparticles is comprised between 2 and 15 micron, at least 10% of the microparticles has a mass diameter (MD) higher than 0.5 micron, and the process of preparation thereof.

An intravascular stent especially suited for implanting in curved arterial portion. The stent retains longitudinal flexibility after expansion. The stent is formed of intertwined meander patterns forming triangular cells. The cells are adapted to provide radial support, and also provide longitudinal flexibility after expansion. The cells also provide increase coverage of a vessel wall. The stent has a reduced crimped profile due to the differing lengths of adjacent structural members within the cells, resulting in loops which are not aligned around the circumference of the stent. Also, this stent may contain a second type of square cells, which are adapted predominately to minimize flaring of the stent ends and to provide additional stiffness.

An apparatus for treating fluids with UV comprises a housing for receiving a flow of fluid having a fluid inlet, a fluid outlet, a reaction chamber; and an assembly of UV sources positioned substantially perpendicular to the fluid. The assembly includes at least first and second pairs of UV sources located in the reactor chamber. The first pair of UV sources has upper and lower UV sources that are positioned relative to each other at a span that is greater than the span between the upper and lower UV sources in the second pair. The second pair is positioned in either the upstream or downstream flow of fluid such that the plane created by the upper UV sources of each pair of UV sources intersects with the plane created by the lower UV sources of each pair of UV sources Subsequent UV sources or pairs of UV sources may be advantageously used. The apparatus may be combined with a baffle arrangement wherein the baffles are preferably positioned in such a way to direct the fluid now into the treatment area.

The invention discloses an irradiation reactor for continuously treating industrial wastewater under cooperation of an electron accelerator, and a method for the irradiation reactor, and belongs to the field of application of nuclear technologies and environmental protection. The irradiation reactor comprises nozzles 2 and an irradiation container 4; and the irradiation container 4 is established 200 to 400mm below a scanning window 6 of the electron accelerator, each of the side walls of the irradiation container 4 is provided with one flat nozzle 2, and wastewater 1 with certain pressure and flow velocity is sprayed by using the nozzles 2 to form a parabolic water film with certain thickness and width. A certain dose of electron beams are irradiated on the wastewater, and then the irradiated wastewater is discharged by a material discharge port 5, and then enters the next process. The irradiation reactor can be matched with electron accelerators with various types and energy for use, and has the advantages of simple structure, low energy consumption, uniform dose, and the like and is easy to control.

A toroidal brachytherapy balloon is provided that fits over any brachytherapy applicator and reproducibly positions the applicator on every use.

A method of irradiating a fibrous organic material comprising the steps of:conveying an organic material formed into a cord-like configuration between two spaced-apart support members; andsupplying a charged particle beam to the organic material at a location between the support members.

The invention provides a method of preparing a dry powder inhalation composition comprising a pharmaceutically acceptable particulate carrier, a first particulate inhalant medicament and a second particulate inhalant medicament. Also provided are dry powder compositions and methods of using them with a dry powder inhalation device.

A phototherapy device for treating neonatal hyperbilirubinemia comprises a plurality of LEDs coupled to a support structure configured to absorb and dissipate heat generated by the LEDs without requiring a fan. The LEDs provide a uniform dose of radiation on a treatment surface of the subject over a distance range of 20 cm to 45 cm. The support structure can comprise a heat-conductive metal plate. The LEDs have an emission range of 400 nm to 520 and a light output intensity of at least 30 μW / cm2 / nm and at most 65 μW / cm2 / nm at the treatment surface. The device can be adjustably coupled to a mounting structure. Power supplied to the LEDs is adjustable based on the total number of hours of use of he LEDs, the intensity of the LED radiation, the distance between the LEDs and the treatment surface, and / or the tilt or orientation of the phototherapy device.

The specification discloses a method and apparatus for irradiating foodstuffs. The method comprises the step of exposing a foodstuff to be irradiated to x-rays having energies selected exclusively from the range of below approximately 250 KeV, for a period of time and at at least a first intensity sufficient to provide a desired dose of radiation to the foodstuff. The inventive apparatus comprises, in a first embodiment, a conduit adapted for the movement therethrough of a foodstuff to be irradiated, the conduit having a passageway defined between inlet and outlet ends thereof; means for moving the product to be irradiated through the conduit at at least a first velocity; and at least one x-ray tube disposed within the conduit passageway between the inlet and outlet ends in the path of travel of the foodstuff to be irradiated, the at least one x-ray tube being selectively capable of generating x-rays having energies exclusively in the range of below approximately 250 KeV. According to an alternative embodiment, the apparatus comprises the aforesaid conduit and means for moving the foodstuff to be irradiated, while providing at least one x-ray tube positioned substantially external of the conduit and arranged so that an x-ray beam emitted by the at least one x-ray tube is propagated substantially in a direction that is perpendicular to the path of travel of the foodstuff to be irradiated through the passageway. The at least one x-ray tube is selectively capable of generating x-rays having energies exclusively in the range of below approximately 250 KeV.

The invention provides an agricultural apparatus for soil improvement, and belongs to the field of agricultural apparatuses. The apparatus comprises a frame provided with a sowing device, a connectingsupport is arranged at one side of the upper end of the frame, the sowing device is mounted at the middle position of the frame, the sowing device comprises a storage box, box supports, a dose assembly, a fixed tube, a universal joint, a nozzle connecting part, a nozzle and a nozzle cover, a front support wheel and a rear support wheel are respectively mounted at the front part and the rear partof the frame, first break shovels are mounted between the front support wheel and the sowing device and positioned in the frame, second break shovels are mounted between the sowing device and the rearsupport wheel and positioned in the frame, and a break shovel mounting cylinder is fixed at the bottom end of every break shovel support rack. The agricultural apparatus can complete the release of asoil conditioner while plowing soil in order to effectively improve soil, and does not need any power in the whole operation, so the apparatus is simple and efficient, and saves energy.

A filling unit and a method for filling a confectionery mass into a container or a mold includes a fill housing with a filling nozzle (2) and at least two dosing pistons in a cylinder which is connected to the fill housing. In the fill housing, a valve is arranged for each cylinder. A mixing block with internal ducts connects each of the outlets with a respective internal duct in the filling nozzle. The confectionery mass is conducted from a filling nozzle into at least one of the cylinders after which the confectionery mass is dosed down into the mold or container by actuating the dosing pistons. The speeds of the pistons are controlled independently of each other, providing varying patterns in longitudinal direction of the ice-cream / confectionery product. The movement of the filling unit relative to the container or mold can be varied providing additional options for variation in patterns.

The invention relates to a ship-mounted black odoriferous water treatment device and belongs to the technical field of water environment restoration engineering. The ship-mounted black odoriferous water treatment device comprises an agent feeding system, a micro-nano-aeration system, a control system and a power system. Through combination of a submersible pump and a filter screen, large granule foreign materials are isolated so that later equipment normal running is guaranteed, the enough solvent source and inlet liquid source are supplied for an agent preparation process and an agent spraying process and agent adding efficiency is improved. A powder automatic feeding device guarantees agent preparation convenience and fastness. Through combination of an agent storage tank and an agent feeding tank, agent feeding continuity and efficiency are guaranteed and an operation cost is saved. Through combination of the agent feeding system and the micro-nano-aeration system, a water dissolved oxygen amount is increased and the agent can be uniformly dispersed in black odoriferous water. Equipment parameter setting and data processing can be finished through the control system so that equipment operation efficiency is greatly improved.

A filling unit and a method for filling a confectionery mass into a container or a mold includes a fill housing with a filling nozzle (2) and at least two dosing pistons in a cylinder which is connected to the fill housing. In the fill housing, a valve is arranged for each cylinder. A mixing block with internal ducts connects each of the outlets with a respective internal duct in the filling nozzle. The confectionery mass is conducted from a filling nozzle into at least one of the cylinders after which the confectionery mass is dosed down into the mold or container by actuating the dosing pistons. The speeds of the pistons are controlled independently of each other, providing varying patterns in longitudinal direction of the ice-cream / confectionery product. The movement of the filling unit relative to the container or mold can be varied providing additional options for variation in patterns.

The invention discloses a scale inhibitor dosing device for direct drinking water, belongs to the technical field of drug delivery, and provides a stable and uniform scale inhibitor dosing device. The bottom of the shelf is equipped with rollers, which are set on the moving guide rails. Water channels are arranged at the bottom of the moving guide rails. Medicine storage boxes are installed on the shelf. A group of rotating gears are meshed and connected with each other. The motor is set on the placement frame. There is a medicine injection hole, and the medicine storage box is connected with the air compression pump. Its main purpose is to add antiscalant to drinking water.

The invention provides a preparation method of highly dispersed superfine powder particles. The powder particles consist of an active ingredient and an additive. The preparation method comprises the following steps: (1) acquiring the superfine powder particles containing the active ingredient; (2) processing the additive: adding the additive to an alternative solvent, and completely dissolving the additive so as to obtain an additive solution; (3) preparing a dispersion suspension: adding the superfine powder particles containing the active ingredient to the additive solution, uniformly dispersing the solution by virtue of a dispersing machine and (or) an emulsifying machine, so that the dispersion suspension is obtained; (4) collecting a sample: processing the dispersion suspension by virtue of a drying method so as to obtain dry powder; and (5) obtaining the final superfine powder particles. The preparation method provided by the invention can complete surface treatment merely by virtue of a conventional dispersing technology as well as common vacuum drying, rotary evaporation, spray-drying and freeze-drying technologies, and the preparation method is simple in process.

The invention discloses a sewage treatment system for dye printing, and aims at solving the problem of poor decomposition effect of a conventional sewage treatment system on organic matters in the sewage. The sewage treatment system is characterized in that according to the sewage treatment system for dye printing, printing sewage is sequentially introduced into a hair fishing pool, a collecting pool, an adsorption precipitation pool, a hydrolyzation pool, an aerobic pool, a degasification pool, a sedimentation pool, a middle water pool, a chemical adding pool, an air floating pool, an activecarbon pool, a secondary sedimentation pool and recycled water reuse equipment. Sewage generated through dye printing is subjected to physical, chemical and biological decomposition. The sewage treatment system for dye printing has the advantages that the decomposition is more thorough and efficient, so that the systemic treatment on the dye printing sewage can be completed; the sewage discharge problem is effectively solved; contribution is made for emission reduction and environment protection.