2696results about How to "Avoid inhalation" patented technology

Described here are devices for altering the flow of air in a respiratory cavity such as the mouth and nostrils of the nose. These methods and devices may be useful for affecting a physiologic benefit in patients suffering from a variety of medical diseases, particularly those that may benefit from “pursed-lip” breathing and non-invasive ventilation, such as COPD, heart failure, sleep apnea, and other medical disorders. The devices are typically removable devices that may be placed over or in a respiratory cavity to increase resistance to airflow within the respiratory cavity. Resistance to expiration may be selectively increased relative to inspiration. Removable oral and removable nasal devices are described. Oral and nasal devices that filter inhaled airflow of debris and allergens are also provided. A nasal device that increases patency of the nares is also provided.

An angled tissue cutting instrument comprises an angled outer tubular member rotatably receiving a flexible inner tubular member. The inner member has a flexible region in correspondence with an angle of the outer member. The flexible region comprises a helically cut length portion of an elongate tubular body of the inner member and a continuous solid flexible surface secured to an outer surface of the body along the helically cut length portion. A method of fabricating a flexible inner tubular member involves forming a helical cut through the solid wall of a length portion of a tubular body and securing a continuous solid flexible surface to the outer surface of the body along the helically cut length portion to form a flexible region.

Disclosed herein is a cannula assembly for directing the flow of material from an organ chamber, e.g., blood from the left chamber of the heart, and methods of placing the cannula assembly in fluidic communication with the chamber. The cannula assembly includes an elongate tubular member and a coupling assembly disposed at the distal end of elongate tubular member. The elongate tubular member includes a lumen extending from a distal opening at the distal end to a proximal opening at the proximal end. The coupling assembly includes a retaining element and a retention member configured to cooperate with each other and with the portion of the organ wall surrounding the opening in the wall to couple or anchor cannula system to the wall and to provide fluidic communication between the distal opening of the elongate tubular member and the organ chamber.

An object of the present invention is to ensure the stable operation of a vacuum pump for discharging an unused source gas and reaction byproduct gases from a low-pressure processing chamber, to recover the reaction byproducts efficiently for the effective utilization of resources and reduction of running costs. A low-pressure CVD system has a processing vessel (10) for carrying out a low-pressure CVD process for forming a copper film, a source gas supply unit (12) for supplying an organic copper compound as a source gas, such as Cu(I)hfacTMVS, into the processing vessel (10), and an evacuating system (14) for evacuating the processing vessel (10). The evacuating system (14) includes a vacuum pump (26), a high-temperature trapping device (28) disposed above the vacuum pump (26) with respect to the flowing direction of a gas, and a low-temperature trapping device (30) disposed below the vacuum pump with respect to the flowing direction of a gas. The high-temperature trapping device (28) decomposes the unused Cu(I)hfacTMVS contained in a gas sucked out of the processing vessel (10) to trap metallic copper. The low-temperature trapping device traps Cu(II)(hfac)₂ produced as a reaction byproduct.

A look-alike substitute for a cigarette, from which a smokeless aroma of burning tobacco or other fragrances can be inhaled and a smoke-simulating aromatized powder can be emitted out, comprises a first chamber lined with a scratch-releasable, flavor-coated insert and a second chamber filled with micrometric powder. The release of the aroma is triggered by scratching the insert with a built-in wire brush. The aromatic compound is preferably deposited on the inner surface of a replaceable hollow tube. A number of different flavored tubes are provided as part of a kit. A specially designed tip gives the appearance of glowing embers.

An easy to use, squeezable device with a soft, flexible tube for feeding liquid nutrition to a person, includes:

• • a) a squeezable bottle portion for holding the ingestible liquid therewithin, the bottle portion comprising an opening at its top surrounded by a neck; and
  • b) a cap assembly comprising: flexible fluid-flow tubing, a spout or nipple assembly, and a threaded collar, an upper portion of the spout assembly being insertable through a central aperture in the collar, the flexible tubing having a first end in fluid communication with the bottle portion and a second end insertable in the patient's mouth, the flexible tubing extending through or encircling a central aperture in the spout assembly. The spout assembly preferably includes a leakproof flange, and a valve assembly for controlling flow. The device is particularly intended for use where suction such as nipples, straws, or sip cups are contraindicated after craniofacial surgery.

Antimicrobial compositions, especially those useful when applied topically, particularly to mucosal tissues (i.e., mucous membranes), including, in particular, a fatty alcohol ester of a hydroxycarboxylic acid, alkoxylated derivatives thereof, or combinations thereof. The compositions can also include an enhancer component, a surfactant component, a hydrophobic component, and/or a hydrophilic component. Such compositions provide effective topical antimicrobial activity and are accordingly useful in the treatment and/or prevention of conditions that are caused, or aggravated by, microorganisms (including viruses).

The present invention relates to a device for treating obesity using cooling, the device comprising: a controller body for setting a cooling temperature and operating time, supplying cooling water for cooling a thermoelectric element, and providing suction force through a vacuum pump; a handpiece body for displaying operating conditions and providing suction force through a suction hole; a cable for connecting the controller body and the handpiece body; a suction cup mounted on the handpiece body to form a suction space; and cooling devices positioned on opposite sides of the suction cup to cool a part to be treated, which has been sucked into the suction space. Further, metallic cooling plates in-molded in a suction cup made of silicone make contact with the part to be treated via a thin silicone layer such that fat can be destroyed efficiently using a small amount of anti-freezing agent while protecting the skin.

The invention provides a haze-proof nano window screen manufacturing method. The method comprises the steps that polyamide 6 particles are added into a formic acid solution with the concentration ranging from 92% to 99% and are stirred at room temperature to be completely dissolved, and an electrostatic spinning solution with the polyamide 6 mass concentration being 13% is formed; an electrostatic spinning device is utilized for spraying the prepared electrostatic spinning solution on PET polyester fiber net window screen basic materials, and a layer of nanofiber membrane is formed on the PET polyester fiber net window screen basic materials; nanometer titania is sprayed on the nanofiber membrane. The haze-proof nano window screen manufacturing method has the advantages that the nanofiber membrane can effectively filter out various respirable fine suspended particles such as dust (containing PM2.5), coal dust, smog, fiber impurities and pollen in the air, indoor air is kept clean, and human health is facilitated; the nanometer titania can resolve hazardous substances in air into innocuous substance under the action of light, and the purposes of controlling bacterial reproduction and purifying air are achieved.

The invention relates to the field of high-speed railway pier construction, in particular to a pile head ring incision machine for a high-speed railway bearing platform. The pile head ring incision machine comprises a machine body, a ring incision device and a bent terminal. The machine body comprises a front machine frame and a rear machine frame. The front machine frame and the rear machine frame each comprise a pair of struts, a pair of moving table screws, a bottom connecting plate, a top connecting plate, a moving table and a supporting sliding table. The ring incision device comprises a turntable, a turntable gear, a knife cutting device and a water cutting device. The bent terminal comprises a fixed position supporting rod, a bent guide wheel, a rope winding wheel, a rope winding motor, an embedded head block, a capturing head and a steel wire rope. The machine body can wrap a pile head in a half-and-half rotation mode. The ring incision device can perform rotary motion to use a cutting knife to cut open part of the pile head, and water cutting is utilized to completely cut open the pile head. The bent terminal is used for bending steel bars in the pile head. The pile head ring incision machine automatically treats the pile head, manpower is saved, dust is prevented from being sucked into the body, health is ensured, environmental pollution is alleviated, and the pile head ring incision machine is convenient to operate.

A falling film evaporator is provided for use in a two-phase refrigeration system or process system. The evaporator includes a shell having an upper portion, a lower portion, and a tube bundle having tubes extending substantially horizontally in the shell. A hood is disposed over the tube bundle, the hood having an upper end adjacent the upper portion above the tube bundle, the upper end having opposed substantially parallel walls extending toward the lower portion, the walls terminating at an open end opposite the upper end. Once liquid refrigerant or liquid refrigerant and vapor refrigerant is deposited onto the tube bundle, the substantially parallel walls of the hood substantially prevent cross flow of refrigerant vapor or liquid and vapor between the tubes of the tube bundle.

A self-cleaning screen for shallow water pumping includes a rotatable drum made of mesh material for removing debris from water passing into the drum, and a suction chamber within the drum for feeding water to a suction pipe connected to a centrifugal pump. Inlet openings are arranged across a bottom side of the suction chamber. A check valve assembly is provided to prevent water from back flowing through the inlet openings, to thereby maintain a prime in the suction pipe when the pump is off. The check valve assembly includes valve members that are slidably mounted above the inlet openings for movement between closed and open positions. The valve members move upwardly from their closed positions to their open positions upon movement of water through the inlet openings into the suction chamber, and return to their closed positions by force of gravity when water stops flowing into the suction chamber.

A system for detecting the presence of smoke within a building and providing means to remove the smoke, into the airspace above the ceiling thereby preventing or at least alleviating smoke inhalation, property damage, and allowing more time for the safe evacuation from the premises. The system is comprised of a conventional smoke detector which activates control means for raising and lowering a generally planar panel which is installed in a ceiling. Smoke is removed from the airspace below the ceiling to the airspace above the ceiling. An optional fan, remote fan relay, exhaust vent and back draft damper further aid in the exhausting of the smoke from the building. A fusible link in the control means protects the ceiling fire rating.

A method and apparatus (10) for determining cardiac output by directing airflow or gas flow (fluid) to a fluid containment structure (12) coupled to an inspiratory limb (16) of a ventilator circuit instead of the patient and enabling the patient to directly inhale fluid from the fluid containment structure and preventing the patient from inhaling through an expiratory limb (18) of the ventilator-circuit. The method and apparatus also prevents exhalation by the patient into the fluid containment structure. The method and apparatus also comprises an aid helps the patient become consistent in their breathing patterns. When the fluid containment structure fills with a volume of fluid, the aid provides an indication that the patient should inhale; when the fluid containment structure empties of fluid, the aid provides a signal that the patient should exhale. Thus, the aid provides feedback to the patient to help the patient control their ventilation pattern.

The present invention relates to a control method of air conditioner safety shutdown. Said method includes the following steps: when the turn-off signal of indoor machine is received by outdoor machine, the compressor is in low-frequency operation, when it is used for refrigeration, the control system can forcedly close the electronic expansion valve of indoor machine, when it is used for heat production, the control system can forcedly close the electronic expansion valve of outdoor machine; then the cooling agent from electronic expansion valve to suction line of compressor can be discharged from exhaust hole by compressor; when the exhaust temperature of compressor is risen or low-pressure pressure is lowered to defined value, then control system can be used for controlling compressor and making it stop safety shutdown process of air conditioner. Said invention can utilize said control method to ensure normal operation of said system.

The invention discloses multi-phase combined lightweight aggregate concrete and a preparation method thereof. The multi-phase combined lightweight aggregate concrete is prepared from the following raw materials in part by weight: 1 part of cement, 0.40 to 0.50 part of fly ash, 1.836 to 2.219 parts of pumice sand, 0.028 to 0.043 part of corn straw fibers, 0.006 to 0.008 part of polyphenyl particles, 0.23 to 0.33 parts of rubber particles, 0.010 to 0.015 part of additive, 0.005 to 0.007 part of foaming agent, and 0.50 to 0.55 parts of water. The preparation method comprises the following steps:1, preparing thin-coating pumice sand and thin-coating straw fibers; 2, performing interference treatment of polyphenyl particles and rubber particles; 3, uniformly stirring the cement, fly ash, water, additive and thin-coating pumice sand; and 4, adding the polyphenyl particles, rubber particles and thin-coating straw fibers in turn, and continuing to stir. When the method is used, the mechanical performance of the lightweight aggregate concrete can be improved effectively, the thermal-insulation and heat-preservation performance is enhanced, and production cost is lowered.

The invention relates to a detection device and especially relates to a multi-azimuth air detection device for indoor air detection. At present, a multi-azimuth air detection device which is used for indoor air detection, is convenient for operation and realizes accurate and fast detection is needed. Aiming at solving the above technical problem, the invention provides the multi-azimuth air detection device. The multi-azimuth air detection device comprises wheels, a first motor, support bars, a base plate, an air detector, a pushing handle rack, a rotation shaft, an annular slide rail, a slide block, a rotation plate, an electric pushing rod, a connection rod, a swing rod, an intake hood, an adapter sleeve, an air inlet flexible pipe, a first one-way valve, a piston, a cylinder body, a guide sleeve, a L-shaped movable rod, a block, a second motor, a cylindrical cam, a silica gel flexible pipe and a second one-way valve. The bottom of the base plate is symmetrically provided with wheels. The left side of the top of the base plate is symmetrically provided with the support bars. The multi-azimuth air detection device has the advantages of operation convenience, detection accuracy and fast detection speed.