47 results about "Manual ventilation" patented technology

A ventilation system for intensified breathing that includes both a manual ventilation system and automatic ventilation system. The gas mixture from a gas supply system is supplied to a switching valve that is operable between a manual position and an automatic position. When the switching valve is in the manual position, the inhalation gas from the supply system is guided to a manual ventilation bag. When the ventilation bag is squeezed during manual inhalation, the gas flow from the manual bag is directed to the inhalation limb of the patient circuit. When the manual ventilation bag is released, the pressure within the ventilation bag falls below the exhalation pressure, thereby indicating the beginning of the exhalation phase and the re-inflation of the manual ventilation.

The system and method for preventing volutrauma and barotrauma in patients connected to a ventilator or a manual ventilation system detects elevated airway pressures above a safety pressure and during a time longer than the normally used inspiratory time periods, opens a safety valve to reduce airway pressure below the dangerous values, generates an alarm and closes again the airway system allowing further ventilation. This ventilator safety valve can work repetitively thereby protecting continuously the airway, but at the same time generating a simple method of escape ventilation. Two prototypes of this invention system are build, an electric system driven by computer software written in lab view and a mechanical pneumatic system with a concertina, a spring and an air reservoir under the concertina emptying through a micro opening allowing a time delay before a valve is opened.

Disclosed is a manually operable volume-adjustable ventilation device. The device includes a reservoir with an inlet mechanism, an outlet mechanism, and a volume adjuster configured to move a volume adjustment limit of the reservoir and change an expressed maximum volume of the reservoir. The reservoir has a body having a plurality of movable walls defining an enclosed volume. The reservoir has an uncompressed state and a compressed state. The walls of the reservoir are movable with respect to each other, such that moving the walls expresses the volume adjustment limit of the reservoir. The walls can be operably connected by movable structures configured such that two adjacent walls are configured to rotate around substantially orthogonal axes with respect to each other when the reservoir moves from an uncompressed to a compressed state. In some embodiments, the movable structures can be hinges, such as snap-fit assembly hinges. Methods of ventilating a patient that involve the device are also disclosed.

An apparatus, system and method of actuating a manual ventilator system bag to cause patient ventilation. The apparatus, system and method include a pressure exerter proximate to the manual ventilator system bag; and an actuator suitable for remote actuation of said pressure exerter. In embodiments, actuation of the actuator remotely causes the pressure exerter to make contact with and exert pressure against the manual ventilator system bag to thereby execute ventilation of the patient associated with an inlet hose/tube.

A pacing apparatus for use with a manual ventilation device, includes electronic circuitry configured to provide a visual, tactile and/or audible indication of a specified compression/ventilation duty-cycle for delivering compressions/ventilations in order to ventilate, provide air, oxygen or other medical gas to a patient or training device.

The invention discloses a hydroreactive metal fuel swirl stamping ship propulsion system aiming at solving the problems that in an existing ship propulsion system, the maximum ship speed of a traditional propeller propulsion system is limited, and when water stamping is adopted for water spraying propulsion, the defect that the reaction form and speed of water and metal in a combustion chamber aredifficult to control exists. The hydroreactive metal fuel swirl stamping ship propulsion system comprises a water storage container, a high-pressure pump, a high-pressure power system, a hydraulic pressure stabilizing unit, a casing, a swirl generator, a gas supply system, a stamping cone, a combustion chamber, a spraying pipe and a metal particle supply system. The swirl generator, the stampingcone and the combustion chamber are sequentially arranged in the casing. According to the hydroreactive metal fuel swirl stamping ship propulsion system, through manual ventilation cavitation and swirl stamping, the speed and temperature of fluid before entering the combustion chamber are increased, so that the contact area between the fluid entering the combustion chamber and metal particles is increased, the reaction rate is increased, and the controllable continuous reaction of the water and the metal particles at the normal temperature and the normal pressure is achieved.

A manual ventilation or resuscitation device is provided. The body of the device has rigid panels that encompass a sealed volume and are movable with respect to each other. The body has a displacement in a direction of a hand displacement and at least one other direction. A size adjuster adjusts the body displacement(s) between the states. A frequency adjuster adjusts the time to restore the volume or to adjust the time to compress the volume. The body provides an ergonomic fit to a user's hand, which reduces fatigue. The volume and/or frequency adjustments provide a user with reliance on a more or less constant tidal volume and tidal rate. Such adjustments allow usage of the device on any patient, regardless of individual factors such as physical condition, body/lung size, age and sex. Multiple devices could easily be stacked or nested with each other, which reduces storage space.

The invention discloses a horizontal underwater manual ventilation cavitation simulating device, which comprises a projectile body and a sealing piston. The projectile body has a cavity with preset volume. A plurality of ventilation holes are arranged in the projectile body. The sealing piston is movably arranged in the cavity of the projectile body and is arranged at positions where the ventilation holes are arranged. The sealing piston and the projectile body are in closed fit with each other. By simulating the momentum transmission rod of an underground launching device, when the projectile body is launched, the projectile body is instantly accelerated to a high-speed state, the sealing piston cannot move immediately under the effect of inertia, the sealing piston and the projectile body move relatively and the cavity is communicated with the external world through the ventilation holes. In the high-speed moving process of the projectile body, the pressure of the area of the ventilation holes is much smaller than normal pressure in the cavity, air runs out of the ventilation holes at the moment to form a manual ventilation cavitation phenomenon.

The invention provides a collection device of expired air condensed liquid. The collection device comprises an oral-nasal mask, a cooling pipeline and a refrigerating system, wherein the oral-nasal mask is used for collecting expired air of a person to be tested; one end of the cooling pipeline is connected with the oral-nasal mask and the other end of the cooling pipeline is connected with a sampling pipe; the refrigerating system acts on the cooling pipe and the expired air in the cooling pipeline is cooled to be lower than a dew point so that the expired air is converted into the condensed liquid; the condensed liquid falls into the sampling pipe due to gravity through setting an angle of the cooling pipeline; the collection device can further comprise a quantifying system; a liquid level height in the sampling pipe is monitored through a photoelectric induction manner; when the condensed liquid in the sampling pipe reaches a pre-set liquid level height, prompting information is sent out and specimen collection is stopped; the device can be used for collecting the expired air condensed liquid under the condition that normal breathing of the person to be tested is not disturbed or manual ventilation is utilized, and the problems of a current collection device of expired air condensed liquid that standards are not uniform, the effect is not stable and the automation degree is poor are solved.

A portable, compact closed circuit ventilation device for manual ventilation of a patient undergoing a surgical or medical procedure that requires sedation as well as emergency management of respiratory failure. One example embodiment includes a closed breathing circuit having a manually squeezable bag, a carbon dioxide absorption canister, a plurality of valves, a gas port and a plurality of sensors for measuring Tidal Volume (TV), Peak Airway Pressure (PAP) and End Tidal CO2 (ETCO2). Another example embodiment includes an open breathing circuit having a bag, valves and sensors. A monitor displays the sensor measurements during the respiratory phases. In a spontaneously breathing patient the device may be used to assess the adequacy of patient's respiratory efforts. During manual or assisted ventilation, the monitor assures safe and efficacious ventilation by the closed breathing circuit.

A system for ventilating lungs of a subject is disclosed herein. The system includes a control unit configured to control operation of the system. The system also includes a machine ventilator circuit configured to assist the breathing functions of the subject, the machine ventilator circuit includes an inspiration delivery unit, and an expiration circuit. The system also includes a manual ventilation circuit comprising a manual bag guiding a gas from the manual bag wherein a gas flow is guided out from the manual bag to assist an inspiration phase, a gas flow is received to fill the manual bag during an expiration phase, and wherein the gas flow received to fill the manual bag during the expiration phase at least partially comprises the gas flow guided to assist the inspiration phase

An artificial airway obstruction and pulmonary mechanics measuring device comprising a rigid body chamber having a pressure measuring port and a medical ventilator port; a pressure measuring device coupled to the pressure measuring port; and a ventilator port occlusion device coupleable to the medical ventilator port. A method of manufacturing an artificial airway obstruction and pulmonary mechanics measuring device is included.

The invention relates to an ergonomic foot pedal and to apparatuses for manual ventilation. In an embodiment, the invention provides a compact and integrated foot pedal that enables a care provider to provide positive pressure ventilation to a subject's airways and lungs, and to optionally apply suction for the purpose of aspirating mucous, secretions, meconium, blood, fluids or other such materials from a patient—specifically from airways.

The invention provides an intelligent ventilation device for a building, and belongs to the field of safe and intelligent buildings. The intelligent ventilation device comprises a TMS320F28335 main controller, a power supply module, an indoor air quality detection module, an induced ventilation module and a function selection module, wherein a digital filter, a high-frequency transformer, an output filter, a switch tube controller and a feedback circuit are adopted for the power supply module; an optical fibre dust sensor, an optical fibre oxygen sensor, an optical fibre humidity sensor and an optical fibre coupler are adopted for the indoor air quality detection module; the induced ventilation module comprises a rotational speed and flux linkage controller, a brushless direct-current motor and a fan impeller; and the function selection module comprises an automatic/manual selection key, a key speed adjustor and multi-row liquid crystal displays. The intelligent ventilation device provided by the invention is capable of accurately detecting an indoor dust concentration, an indoor oxygen concentration and an indoor air humidity of the building, greatly realizing automatic and manual ventilation, and suitable for being widely applied.

The invention relates to a supercavitation high-speed ship, and belongs to the technical field of high-speed ship application. The supercavitation high-speed ship comprises underwater submerged bodies, a support structure and a ship body. Each underwater submerged body is composed of two rotary bodies, wherein the heads of the rotary bodies are provided with the disc cavitators, and the middle cylindrical sections are provided with the annular cavitators. The support structure is connected with the two underwater submerged bodies and is in lap joint with the ship body. The cross section of theship body is designed into a deep V shape with a small waterline surface, so that the wave-making resistance can be reduced, and the seakeeping of the ship is improved. When the ship body is at a static or low-speed stage, a rotating device is rotated to put down a flat plate, so that the waterline area is increased through the arrangement of the flat plate, and the stability at the static and low-speed movement is maintained. After the ship body reaches a certain speed, the rotating device tightens a steel wire rope to retract the flat plate to be tightly attached to the surface of the shipbody, so that the wave-making resistance and the friction resistance caused by the flat plate are reduced. And meanwhile, through the manual ventilation and the auxiliary effect of the disc cavitators, the middle annular cavitators and the ventilation devices, the supercavitation bubbles are generated to wrap the submerged bodies, and the frictional resistance of the submerged bodies is reduced.

The invention was a public of wastewater reused devices. Mainly by a sealed plastic canister, an underground tank, manual ventilation equipment and plumbing pipe components. Life when she says rather clothing and rinsed with water through pipes into the ground water storage tanks, using manual ventilation devices diverting water from the underground tank piped into the installation in a wall of plastic sealed tins, open the sealed plastic cans on the bottom of the valve may need the water. Using the invention wastewater reusing devices, she says rather water can be rinsed and used clothing and rinse water columns. Chibu as washing. Fundamentally save water wastage, the water is a non-renewable resource, saving the creation of value.

A system for artificial ventilation including a convertible ventilator circuit having at least one inspiratory filter and at least one expiratory filter. The convertible ventilator circuit compatible with and configured to be used with either a manual ventilator or a mechanical ventilator. The convertible ventilator circuit configured to convert between manual ventilation use and mechanical ventilation use. The system including a patient manifold having one or more sensor ports and a data acquisition unit having one or more sensors configured to interface with the one or more sensor ports of the patient manifold. The data acquisition unit configured to receive electronic data associated with transmission of respiratory gases through the convertible ventilator circuit.

The invention relates to a method for ventilating and removing humidity of a honeycomb, which comprises the following steps: selecting a proper exhaust fan, drilling a hole on a back side panel of a beehive, arranging the exhaust fan into the hole, making an exhaust outlet face outwards, and electrically connecting the exhaust fan with a power supply; and supplying power to the exhaust fan by the power supply to exhaust air when the temperature is high or the humidity is large in the beehive. Through manual ventilation and humidity removing technology, the method can reduce the temperature and humidity in the honeycomb, accelerate air convection inside and outside the honeycomb, and improve environment in the honeycomb; and during long honey flow period, the manual ventilation greatly reduces the number of worker bees participating in fanning, lightens labor intensity of the worker bees and effectively shortens honey mature time; in addition, the ventilation mode has convenient operation and low cost.