80 results about "Respiratory conduit" patented technology

A method and an apparatus for monitoring and controlling flows in medical equipment including an anesthetic machine and a ventilator for influencing a patient's respiratory system are disclosed. The apparatus comprises a microprocessor and an airway system comprising drive gas conduits provided with an inhalation valve (2) and an exhalation valve (5) for gas discharging as well as a ventilator end flow sensor (3) for measuring the introduced or discharged drive gas flow through the valves. The airway system also comprises patient end breathing tubing in which a patient end flow sensor (11) for measuring the patient's inspired and expired gas flow is provided. By comparing the measured values of the two flow sensors against the characteristic curve of the inhalation valve (2), the microprocessor can judge the operation states and accuracy of the respective flow sensors and the inhalation valve (2).

The present invention relates to delivery conduits used in systems that provide positive pressure ventilation therapy. In particular, the present invention relates to a sleeve that allows flexible conduits to be joined and sealed to a thermoplastic connector, allowing for gases to be supplied to the conduit. The sleeve is used in the over moulding of an end connector onto the conduit. The sleeve and method of attaching a connector to a conduit of the present invention has the advantage that it prevents the connector from loosening or breaking when the conduit is bent, pulled or stressed, which can occur in some cases where the connector is attached to the conduit using a bond, such as glue. Furthermore, the occurrences of flashing of plastic across the conduit walls will be prevented during moulding, ensuring that no air or water leakages occur within the conduit walls.

A breathing circuit comprising first and second conduits is disclosed, wherein at least one of the conduits is a non-conventional conduit. A multilumen unilimb breathing circuit is also disclosed having first and second conduits, wherein when the proximal ends of said first and second conduits are each connected to an inlet and outlet fitting, respectively, movement of the distal end of the first conduit causes a corresponding movement of the distal end of the second conduit. In an embodiment, inner and outer flexible conduits are formed of pleated tubing that is axially extendable and compressible to form a unilimb multilumen respiratory circuit. The pleating provides for axial extension and contraction. The multilumen respiratory circuit can provide a variable rebreathing volume. In an embodiment, at least one tube in a multilumen respiratory conduit is radially collapsible and radially expandable to a maximum radius for carrying respiratory gases to and from a patient. Also disclosed are methods and systems of optimizing utilization of fresh gases during artificial or assisted ventilation, including administering anesthesia.

Various characteristics of a gas flow can be sensed at the end of a respiratory conduit near the patient interface using a sensing module. The sensing module can be removable from the patient end of the respiratory conduit for ease of use and ease of cleaning. The sensor module can transmit sensor data over the same wires used to heat the respiratory conduit.

A system for sensing respiratory pressure includes a portable pressure transducer configured to be carried by or proximate to a respiratory conduit, such as a breathing circuit or a nasal canula. The portable pressure transducer may removably couple with a pneumotach, in the form of an airway adapter, disposed along the respiratory conduit. The pneumotach may include two pressure ports positioned at opposite sides of an obstruction, which partially blocks flow through a primary conduit of the pneumotach. Corresponding sample conduits of the portable pressure transducer removably couple with the pressure ports. The pressure ports may have sealing elements which are configured to seal against piercing members of the sample conduits upon introduction of the piercing members therethrough. Upon removal of the piercing members, the sealing elements substantially reseal. Methods for using the system are also disclosed.

The present invention relates to a respiratory tubing set for controlling breathing of a patient. A tubing set for controlling breathing of a patient includes a respiratory conduit. The respiratory conduit is configured to be coupled to a patient interface device and is further configured to be coupled to a pressurized air generating device. The respiratory conduit includes at least two airflow control devices, positioned between the patient interface device and the pressurized air generating device that cooperate to closely control the CO₂ levels in the patient's bloodstream through the control of the patient's respiration.

The invention relates to a main transformer nitrogen protection breather and an application method thereof. The main transformer nitrogen protection breather comprises a main transformer body and a control device, wherein the main transformer body is connected to the bottom of an oil conservator by an oil conservator connecting pipe, a gas relay is installed on the oil conservator connecting pipe, the top of the oil conservator is connected to one end of a breathing nitrogen groove by a breathing pipe, an air supplement electromagnetic valve is arranged at the other end of the breathing nitrogen groove and connected to the air outlet of a high-purity nitrogen supplement device, and a reducing valve is arranged at the air outlet of the high-purity nitrogen supplementary device; the control device comprises a central control module, a pressure sensor electrically connected with the central control module and arranged at the oil conservator for detecting air pressure in the oil conservator, a pressure release valve arranged on the top of the oil conservator, and the gas supplement electromagnetic valve. The main transformer nitrogen protection breather can ensure respiration, and also can isolate contact of air and moisture with the oil level in the main transformer, thus ensuring that transformer oil in the main transformer is stable and good in quality for a long time, and also being capable of providing effective fireproofing and firefighting effect.

The invention discloses a radiofrequency ablation catheter for implementing pulmonary nerve ablation, and a radiofrequency ablation system. The radiofrequency ablation catheter comprises a core tube assembly and a plurality of electrodes installed on the core tube assembly, the core tube assembly comprises a core tube, the far end part of the core tube is an expansion part, the expansion part hasa loading state and an expansion state which are opposite to each other, the expansion part in the expansion state is in a closed or open ring shape, and the electrodes are arranged on the expansion part at intervals; and a conveying channel is further arranged in the core tube assembly, one end of the conveying channel is used for being connected with a cooling medium conveying device, and the other end of the conveying channel extends to the expansion part and is independently provided with an output port for each electrode. The arrangement of the expansion part makes the core tube assemblyrealize stable, convenient and accurate ablation operation on respiratory tracts with different positions and shapes, and the operation efficiency and the treatment effect are improved.

The invention provides a method for managing experimental animal respiration, which utilizes a clinic anesthesia machine for the anesthetization of the animal experiment, performs tracheal cannula on an animal, adopts an animal temperate maintenance instrument to keep warm, and keeps the body temperature at the physical level (37 plus or minus 0.5 DEG C) all the time during the anesthesia process. The method is used for solving the animal respiration management problem during the traditional anesthesia process, the same inhalation anesthesia concentration and the stable body environment are also maintained during the whole anesthesia process. By the method, not only is the stress response of the experimental animal reduced, but also the vital sign stability of the experimental animal can be maintained during the inhalation anesthesia process of a long time (such as 4 hours), the mortality is low and the reviving can be stable, and the influences of trauma stress, hypoxia-ischemia, hypercapnia, acidosis and other interference factors on the experimental result can be eliminated. The method effectively controls the respiratory tract of the experimental animal, and also maintains the inhalation anesthesia of the volatile anesthetics with constant concentration, which is output to the animal.

The invention discloses a leech bionic ventilation mask. The leech bionic ventilation mask comprises a connector used for being connected with a breathing pipe, a ventilation mask body and a leech bionic cushion used for being in sealing contact with the portions, on the periphery of the mouth and the periphery of the nose of the human body, of the face skin during ventilation. The leech bionic cushion comprises an approximately-annular base body basically attached to the portions, on the periphery of the mouth and the periphery of the nose of the human body, of the face skin in shape and an approximately-annular suction cup face arranged on the surface layer of the lower portion of the base body and used for being in close contact with the portions, on the periphery of the mouth and the periphery of the nose of the human body, of the face skin. According to the leech bionic ventilation mask, the base body provided with the approximately-annular suction cup face is sucked to the portions, on the periphery of the mouth and the periphery of the nose, of the face skin through the continuous negative pressure, and the quite good sealing performance can be provided during ventilation. When the leech bionic ventilation mask conducts mechanical ventilation, the sealing performance is good, air leakage and wrong sucking can be avoided thoroughly, and the leech bionic ventilation mask is safe and reliable.

The invention provides a heating breathing pipeline which is used for assisting a humidifying instrument to heat humidifying gas, and further preventing formation of condensate water. The heating breathing pipeline at least comprises a heating pipeline (1), a temperature sensor assembly (2) and a temperature heating assembly (3), the heating pipeline (1) is connected with the temperature sensor assembly (2) and the temperature heating assembly (3) respectively; wherein the temperature sensor assembly (2) and the temperature heating assembly (3) are of an injection molding integrated structureand are connected with the heating pipeline (1), a spiral heating assembly (11) is arranged on the outer circumferential surface of the heating pipeline (1) in the length direction, and the temperature heating assembly (3) is electrically connected with the spiral heating assembly (11). The heating breathing pipeline is simple in structure, convenient to use, good in safety, capable of effectivelypreventing secondary infection and extremely high in commercial value.

The invention relates to an emergently-used intelligent breathing life saving apparatus. The emergently-used intelligent breathing life saving apparatus is characterized in that the life saving apparatus is arranged in a ventilation channel with a relatively-closed or absolutely-closed environment, and comprises an outer metal filter cover, a telescopic breathing pipe, an inner filter cover, an intelligent control module, a loudspeaker, a voice tube, an indication lamp, a dust sensor, an independent battery and a cloud processor; the intelligent control module comprises a master control module, a data processing module and a communication module; the intelligent control module is powered by an indoor power source or the independent battery, the intelligent control module is connected with the loudspeaker, the voice tube, the indication lamp and the dust sensor, after introducing voice, the voice tube sends information to the cloud processor through the intelligent control module, and the cloud processor sends the information to the terminal or the cloud processor sends an instruction to remotely control the loudspeaker to send out an alarm; and according to the apparatus, under the emergent condition, exterior air supplying is started, the phenomenon that the human body intakes too much poison gas is avoided, the alarm can be given out in time, a help calling signal can be sent outwards, and the rescue hope is improved.

The invention discloses a respiratory tube temperature detection circuit, a temperature detection method and respiration assisting equipment. The respiratory tube temperature detection circuit comprises a detection circuit and an identification circuit; a controller controls a heating wire to heat gas in a respiratory tube; temperature data of a gas inlet end and a gas outlet end of the respiratory tube are detected by the detection circuit and are directly uploaded to the controller or stored into the identification circuit; the identification circuit stores a respiratory tube mark and/or thetemperature data and uploads the respiratory tube mark and/or the temperature data to the controller; and the identification circuit comprises a multiplexing end, and the controller performs power supply or communication on the identification circuit through the multiplexing end in a power supply and communication multiplexing manner. According to the respiratory tube temperature detection circuit, the temperature detection method and the respiration assisting equipment, port merging is achieved through uploading the temperature data and the respiratory tube mark by a power supply end of theidentification circuit in the power supply and communication multiplexing manner, or directly uploading the temperature data and uploading the respiratory tube mark through the multiplexing end of theidentification circuit in the power supply and communication multiplexing manner, and the occupation of interfaces of the controller is reduced.

The application discloses a mesh cage type radiofrequency ablation catheter which comprises a core tube assembly and a plurality of electrodes mounted on the core tube assembly. The core tube assemblycomprises a core tube and an expansion part connected to the far end of the core tube. The expansion part has a loading state of being folded in a radial direction and an expansion state of being expanded in a radial direction; the expansion part in the expansion state is in a three-dimensional mesh cage shape and includes plurality of hollow elastic rods; one end of each of the elastic rods is gathered and connected and the other ends of the elastic rods are fixedly inserted into the far end of the core tube. According to the technical scheme, with the expansion part, the core tube assemblycan realize stable, convenient and accurate ablation operation on respiratory tracts of different positions and shapes, so that the operation efficiency and the treatment effect are improved.

The invention discloses a condensate water recovery apparatus which is applied to respiratory support equipment. The respiratory support equipment comprises a respiratory duct and a water box; the condensate water recovery apparatus comprises a condensate water recovery pipe, and a condensate water collection chamber which is arranged on one side of the water box and communicates with the water box; one end of the condensate water recovery pipe communicates with the respiratory duct, and is used for collecting condensate water inside the respiratory duct; the other end of the condensate waterrecovery pipe communicates with the condensate water collection chamber, and is used for discharging collected condensate water into the condensate water collection chamber; the condensate water collection chamber is provided with a water inlet and an air outlet; and the condensate water recovery pipe communicates with the condensate water collection chamber through the water inlet. Compared withrelated technologies, the condensate water recovery apparatus disclosed by the invention is high in degree of automation and good in recovery effects.

The invention provides a personal micro-climate system that reduces the energy requirement to keep a person cool by providing a personal air-conditioned space specially for bed-ridden patients. A dome is provided to create a personal space that just cools the area where the patient is at avoiding wasting energy in cooling the room's floor, ceiling, walls and empty space. The cooling system can be energized through solar power, deep cycle battery packs, small power plant or through a combination thereof. The system allows for the movement of an automatic or semi-automatic bed. A transparent cover is stretched over a frame structure to allow for maximum visibility from the inside out and vice versa. The system allows ease of opening an attendant window for patient care or to help a bedridden patient in an emergency. Breathing tubes, feeding tubes, IV lines, sensors and cables can be fed into the dome through openings between a mattress cover and the micro-climate dome. The personal microclimate system serves as a positive or negative personal isolation chamber provided with high-efficiency particulate air filters and ultraviolet germicidal irradiation systems. An anteroom can be added next to the micro-climate dome and/or a secondary larger structure may be added to enclose the micro-climate dome.

The invention discloses an automatic test control system, which comprises a controller, and an elevation simulation module, a lung simulation module and a detection module connected with the controller respectively, wherein the elevation simulation module comprises a vacuum pump motor, a vacuum pump and a negative pressure chamber; the negative pressure chamber is internally provided with an oxygen supply regulator and a simulated mask; the lung simulation module comprises a servo motor and a cylinder; and the detection module comprises an oxygen concentration instrument arranged a respiratory tract, a respiratory flow meter arranged on the respiratory tract and a pressure sensor arranged in the negative pressure chamber. The automatic test control system has the beneficial effects that the respiratory condition of the lung and the atmospheric environment at a high altitude can be simulated, a real environment and an experiment environment for the real use condition can thus be provided, a simulated lung is used to prevent human errors caused by human factors, use effects of the oxygen supply regulator and the simulated mask can be reflected really, and the test result is more accurate.

There is described a tube fastener, in particular tube fastener to secure respiratory tubing for breathing systems, methods of using the tube fastener, a carriage for use with the tube fastener and a system.