42 results about "Positive-Pressure Respiration" patented technology

In one embodiment, the invention provides a medical method for treating a person and comprises repeatedly compressing the person's chest. While repeatedly compressing the person's chest, the method further includes repeatedly delivering a positive pressure breath to the person and extracting respiratory gases from the person's airway using a vacuum following the positive pressure breath to create an intrathoracic vacuum to lower pressures in the thorax and to enhance blood flow back to the heart.

An interface for positive pressure respiratory therapy includes a mask assembly having a mask seal and a mask shell. The mask assembly is positioned lower than and exposes a bridge of the user's nose. The mask seal includes first and second portions on respective first and second sides of a nasal region that contact opposing sides of the user's nose. The first and second portions each include supports that help maintain a shape of the mask seal. A pair of covers can be supported relative to the mask assembly and adjacent a respective one of the first and second portions of the mask seal. The covers limit expansion of the first and second portions of the mask seal in response to pressurized air within the mask seal. The supports of the first and second portions can transfer load from the mask seal to the covers.

A portable positive pressure breathing apparatus includes a demand valve with a supply inlet port adapted to be connected to a pressurized source of oxygen and an outlet port adapted to be connected to the inlet of a patient's breathing appliance. The demand valve further includes a reference chamber and a valve assembly responsive to the reference chamber/appliance inlet pressure differential for connecting/disconnecting the inlet port to and from the outlet port. At least one manually adjustable back pressure regulator is connected to the pressure source and the reference chamber for setting the pressure in the reference chamber (and inlet to the breathing appliance) at a selected level above atmospheric pressure.

A multi-use, hand held, single patient oscillatory positive expiratory pressure respiratory therapy device which is easily assembled and disassembled for cleaning, and which is not position dependent during therapy, but operable through a wide range of device orientation.

A positive pressure type respiration protector comprising a dust filter, an induced draft fan, an air delivery pipe and protection cover assembly is provided. The protection cover assembly includes a protection cover, a buckle clip and a mask, the mask is plastered to the protection cover by an abrasive plastic paste, and the outer edge of the buckle clip forms an air tightness contact with the upper ledge inner wall of the protection cover, a flute is provides on the inner edge of the buckle clip, being socket with a the front part of the safety cap, the protection cover having a view window is connects with the safety cap by a pin, the dust filter and the induced draft fan are installed inside the casing, the casing is fixed to the safety cap. One end of the air delivery pipe is connected with the air outlet of the case, while the other end of which is connected with the buckle clip air inlet. The invention has simple structure, low cost and favorable dust proof effect. It can ensure the personnel working in the dust filled environment away from the silicosis caused by the dust absorption.

Transvascular diaphragm pacing systems (TDPS) and methods are disclosed for providing respiratory therapy to a patient. The TDPS can provide rapid insertion and deployment of endovascular pacing electrodes in critically ill patients who require intubation and invasive PPMV in order to support the physiological requirements of the human ventilatory system. The systems and methods make best use of the contractile properties of the diaphragm muscle and prevent muscle disuse and muscle atrophy. This can be carried out by engaging the phrenic nerves using patterned functional electrical stimulation applied to endovascular electrodes that are temporarily and reversibly inserted in central veins of the patient, such as the left subclavian vein and the superior vena cava. The TDPS can be designed to seamlessly interface with any commercially available positive-pressure ventilatory assistance/support equipment such as is commonly in use in hospital intensive care units (ICU) for treating critically ill patients with breathing insufficiencies, pain, trauma, sepsis or neurological diseases or deficits.

A ventilation system is adapted to synchronize the delivery of both positive pressure ventilation and negative pressure ventilation to a patient. The ventilation system is structured to produce a positive pressure flow of gas which is delivered to the patient's airway and a negative pressure flow of gas which is converted into a negative extrathoracic pressure. The negative extrathoracic pressure is communicated to the patient in synchronism with the delivery of the positive pressure flow of gas.

Provided are a ventilation control device and breathing mask equipment with the same. The ventilation control device comprises a cavity, a valve assembly and a heat and moisture exchanger; the cavity is provided with a delivery port, the valve assembly is arranged at the delivery port, for the structure of the valve assembly, when expiration is conducted, the pressure in the cavity is kept larger than the atmospheric pressure, a mask vent which is communicated with the delivery port is formed in the heat and moisture exchanger or the cavity, the mask vent is used for being communicated with a breathing mask, and the heat and moisture exchanger is communicated with the delivery port, so that exhaling and inhaling are both conducted through the heat and moisture exchanger. By means of the ventilation control device, the positive pressure function of the expiratory phase is achieved, and the discomfort caused by continuous positive pressure to a patient is avoided; the ventilation control device does not need to be connected with a positive pressure gas supply device, a pipeline and the like in use, and the patient can move conveniently; when the patient goes out, the patent does not need to carry the positive pressure gas supply device. In addition, the ventilation control device is small in size, convenient to carry and low in cost.

A positive-pressure respiratory mask can be used during medical procedures to provide oxygen to a patient while the instruments and devices used in the procedure remain in place. A flap system that includes a flexible diaphragm is used on the mask to create an airtight seal around the instrument.

Respiration system for non-invasive positive-pressure respiration, with a pressure source providing respiratory gas, with a control and evaluation unit connected to sensors detecting a leakage volume, spontaneous respiration frequency, tidal volume and the inspiration time. The control and evaluation unit I) checks the leakage volume and reduces the inspiratory pressure assistance proceeding to ii) or triggers an alarm and returns to I), ii) checks the frequency and triggers an alarm and returns to I) or reduces or increases the inspiratory pressure and returns to I) or proceeds to step iii), iii) checks the volume and reduces or increases the inspiratory pressure and returns to I) or leaves the pressure assistance unchanged proceeding to step iv), iv) adjusts the time period of the pressure assistance, depending on the inspiration time, the time period being left unchanged if the inspiration time lies in the predefined inspiration time interval, and returns to I).

The invention provides a medical positive pressure breathing hood, and belongs to the field of medical product manufacturing. The medical positive pressure breathing hood comprises a spherical transparent hood body, an air inlet pipe and an exhaust baffle; a wearing opening is formed in the bottom of the transparent hood body, a sealing skirt plate is arranged at the edge of the wearing opening, the exhaust baffle is installed at the top of the transparent hood body, a filtering net is arranged in the exhaust baffle, a dispersion pipe is arranged in the transparent hood body, a plurality of air inlet nozzles facing the human nose and mouth are formed in the dispersion pipe, one end of the air inlet pipe is inserted into the transparent hood body, and an air inlet fan is arranged at the other end of the air inlet pipe; and the air inlet pipe is inserted into the transparent hood body and is connected with the dispersion pipe. According to the medical positive pressure breathing hood, the introduced air is sprayed at the human mouth and nose, breathing is more fresh and natural, the water mist corresponding to the face on the transparent hood body can be effectively dried to avoid blocking the sight; and in addition, the exhaust gas generated by the medical positive pressure breathing hood is discharged through the top of the transparent hood body, and the heat in the hood can betaken away.

The invention relates to a positive pressure breathing device. The positive pressure breathing device comprises a hood body, a micro pump and a processor, wherein the hood body is fixed to the face of a user and corresponds to a respiratory tract outlet to form a closed space; the micro pump is combined with the hood body and communicates with the external part of the hood body; the processor is electrically connected with the micro pump; when the processor transmits a start-up control signal to the micro pump, the micro pump is started according to the start-up control signal, and external gas is transported to the closed space to form a positive pressure air current to be poured into a respiratory tract outlet of the user; and a pressure detector is also arranged in the closed space to detect the pressure of the closed space, and then the pressure is supplied to the processor, the respiration state of the user can be judged, and the air pressure output of the micro pump can be adjusted and controlled.

The anti-epidemic sustaining jet positive-pressure breather includes jet unit and breath air passage, and features the jet unit with oxygen inlet, air inlet and mixed air outlet, communicated with the oxygen passage and the mixed air outlet to output mixed air, oxygen passage and the mixed air passage connected separately to the driving pressure gage and mixed air passage pressure gage; and the mixed air outlet communicated with the breath mask via breath bellows. The present invention is suitable for breath support of patient suffering from respiratory disturbance, failure and especially SARS, and can make the patient suck positive pressure mixed air with oxygen and breathe out metabolic air.

The present invention discloses an anaesthetic mask special for oral endoscopy. The aim of the invention is to overcome the problem that the endoscopy and positive pressure ventilation can not be executed simultaneously. The anaesthetic mask comprises a mask body (9), an oxygen interface (1), an endoscope channel pipe (3), a sealing ring (4) and an annular rubber blanket (8). The sealing ring (4) is fixed at the right central part of mask body (9). One end of endoscope channel pipe (3) is inserted into the sealing ring (9) for becoming a slip connection. The other end of endoscope channel pipe (3) is connected with a screw cap (5) through screw connection. The annular rubber blanket (8) is fixed between the other end of endoscope channel pipe (3) and the screw pipe (5). The oxygen interface (1) is positioned at one side of endoscope channel pipe (3) and fixed on the mask body (9). The hole of annular rubber blanket (8) can be also inserted with a conversion barrel (6) for becoming a slip connection. The central sleeved part at the other end of conversion barrel (6) is processed with a rubber cap (7) of one through hole. The height of endoscope channel pipe (3) or conversion barrel (6) is 40-70mm.

The invention discloses a molecular film gas purification method applied to a positive-pressure respiratory system of closed protective clothing, which comprises the following steps: S1, ensuring the internal circulation air pressure of the positive-pressure respiratory system of the closed protective clothing through air draft equipment, extracting air exhaled by a wearer from an exhaust port of the closed protective clothing, and enabling the air to enter a pipeline; S2, enabling air exhaled by the wearer to pass through a molecular membrane through air draft equipment, wherein the molecular membrane is a membrane net which is composed of a plurality of hollow fiber membrane filaments and used for gas exchange and is used for achieving gas exchange by means of molecular pressure difference, carbon dioxide, ammonia gas and water vapor in an inner cavity of the molecular membrane can permeate the membrane wall to be diffused to the external atmospheric environment, and oxygen in the external environment is diffused into the inner cavity of the molecular film through the film wall; and S3, sending back the air subjected to exchange purification treatment of the molecular film to the interior of the closed protective clothing through the pipeline and the air inlet of the closed protective clothing by the air draft equipment, so that the wearer can breathe.

The invention discloses a positive pressure respiratory system, comprising a filtering device, a water tank, an air supply valve and a face mask, which are connected through pipelines in sequence. The positive pressure respiratory system is simple in structure and convenient to use, and enables a user to breath more comfortably; and besides, outside harmful gas is prevented from entering the respiratory organ of the user, and the application safety factor is high.

A positive type dust proof device for respiration is provided. It comprises a protection cap with a mask and a facial glass. The key points lie in that: a head frame is provided on the upper end of the protection cap, the periphery of the lower end of which is closely connected with the inner wall of the head frame. An outer case installed with a dust filter and an induced draft fan is fixed to the head frame. An air delivery tube is installed along the inner wall of the protection cap. One end of the air delivery pipe is connected with the air outlet of the outer case, while the other end of which is fixed on the inner wall of the protection cap front part, the outer edge of the facial mask is closely connected with an abrasive plastic plaster to joint with the facial glass the inner edge periphery of the facial mask is of an elastic band structure. the induced draft fan get electricity from a DC supply. It can ensure the personnel working in the dust and harmful gas filled environment away from the silicosis caused by the dust absorption and harmful gas.

The invention discloses a positive-pressure breathing device for a diving experiment of a Bama miniature pig. The breathing device comprises a special diving gas cylinder and a gas transmission device; the gas transmission device comprises a primary regulator and a secondary regulator; the primary regulator is mounted at the upstream end of a gas conveying pipe; the secondary regulator is mountedat the downstream end of the gas conveying pipe; the primary regulator comprises a first regulating valve and a pressure gauge; the first regulating valve of the primary regulator is connected and fixed with a pressure reducing valve at the mouth of the special diving gas cylinder; the secondary regulator is provided with a second regulating valve; the second regulating valve is connected with a cylindrical respirator through a connecting pipe; the cylindrical respirator comprises a shell and an attaching mask arranged in the cavity of the shell, the opening end of the attaching mask extends out of the shell, a mask tightening belt is arranged at the opening end of the attaching mask, the shell is fixedly connected with an animal necklace through a connecting belt, and a breathing air outlet is formed in the second regulating valve.

An inspiratory resistor valve system (IRV) to regulate intrathoracic pressure during positive pressure breathing, spontaneous inspirations, and CPR may include an inspiratory port. The IRV system may include patient port. The IRV system may include a separate expiratory port. The IRV may include a plurality of atmospheric pressure sensitive valves. The plurality of atmospheric pressure sensitive valves may isolate the expiratory port and the inspiratory port from one another.

The invention discloses a positive pressure respiration treatment machine. The positive pressure respiration treatment machine includes a treatment instrument body; handles are arranged on two sides of the treatment instruments; an instrument cover is fixed on the top of the treatment instrument body through fasteners; fans are clamped on inner walls of the treatment instrument body through clamping shafts; a cleaning filtering plate is clamped on the centers of the inner walls of the treatment instrument through clamping plates; a respirator is fixed above the cleaning filtering plate through a fixing device; humidifying plates are fixed on a bottom plate of the instrument body through fixing clamping sheets; and a line winding groove is formed in a back surface of the treatment instrument body. The fans are clamped on the inner walls of the treatment instrument body through the clamping shafts, the fans can be rotated and taken out by rotating the clamping shafts, the fans can be cleaned and changed regularly, and the cleanness of the positive pressure respiration treatment machine can be ensured; the service life of the treatment machine can be prolonged; a dustproof cotton cloth is laid on the bottom of the line winding groove, which can further improve the cleanness of the respiration treatment machine; and the safety of the positive pressure respiration treatment machine is high.