137 results about "Breathing circuits" patented technology

A device for measuring metabolic parameters and functional residual capacity is connected to a ventilator. To measure CO2 and O2 concentrations, the device takes a sample from a patient's breathing circuit and measures the gas flow rate in the circuit in parallel. The respiratory gas flow rate is measured without a time lag. The CO2 and O2 concentration data differ in time by the transport lag in sample delivery from the patient circuit to the CO2 and O2 sensors. The processor measures and compensates for transport lags. Time-synchronized CO2 and O2 concentration data are time-integrated with the flow rate, and the volumetric amounts of CO2, O2 / N2 are calculated. On the basis of these data, metabolic parameters and / or volumetric capnometry function and / or functional residual capacity are calculated.

A combined system of a concealed closed tracheoscope and an artificial airway breathing circuit includes an artificial airway breathing tubing and a tracheoscope. The artificial airway breathing tubing includes an inhalation circuit and an exhalation circuit that are connected through a connecting tube. The tracheoscope includes a handle portion and an insertion portion connected to the handle portion. The tracheoscope handle portion wraps around a section of the exhalation circuit. The tracheoscope insertion portion is hidden in the extendable breathing circuit, which extends and retracts to make the tracheoscope insertion portion advance or retreat in a closed condition. The tracheoscope handle function assembly cleverly wraps around the surface of the breathing circuit tubing, organically combining the functions of the tracheoscope handle and the breathing circuit. Meanwhile, the tube interface can be cleaned to keep the tracheoscope clean and unobstructed, such that the service life of the tracheoscope can be extended.

The invention relates to the technical field of medical monitoring, in particular to a patient cardiopulmonary function monitoring system and method and a computer readable storage medium, the monitoring system comprises a breathing machine, a pulmonary membrane oxygenation device, a first monitoring module and a second monitoring module, and the breathing machine comprises a breathing circuit, a processing module and a display module; the pulmonary membrane oxygenation equipment comprises an oxygenator; the first monitoring module is used for monitoring carbon dioxide exhaling parameters in gas exhaled by a patient in real time; the second monitoring module is used for monitoring carbon dioxide discharge parameters in gas discharged by the oxygenator in real time. By means of real-time monitoring of exhaling parameters of carbon dioxide in gas exhaled by a patient and discharging parameters of carbon dioxide in gas discharged by an oxygenator, continuous monitoring of the change condition of the cardiac function and / or the lung function of the patient is achieved, oxygen consumption of the patient can be truly reflected, parameter adjustment of a breathing machine and lung membrane oxygenation equipment is facilitated, and the patient experience is improved. And guidance is provided for turning of the pulmonary membrane oxygenation equipment.

A respiratory ventilator device is described herein. The respiratory ventilator device includes an inhaled air assembly and a pneumatic compressed air assembly. The inhaled air assembly includes an injector diaphragm housing including a flexible silicone rubber diaphragm dividing an interior volume into an inhalation air chamber containing inhalation air and a compressed air chamber for containing compressed air. The pneumatic compressed air assembly operates in a compression phase delivering compressed air into the compressed air chamber to inflate the flexible silicone rubber diaphragm to reduce a volume of the inhalation air chamber and channel the inhalation air to a patient respiratory circuit, and operates in an expansion phase removing compressed air from the compressed air chamber to deflate the flexible silicone rubber diaphragm to increase the volume of the inhalation air chamber and receive the inhalation air from the supply of oxygenated air.

The utility model provides a pulse type oxygen supply device which comprises a controller, an oxygen supply pressure sensor, a passenger cabin pressure sensor and a plurality of mask assemblies. Each mask assembly comprises a mask, a pressure switch and an electromagnetic valve; a breathing pipeline of the mask is connected with an air source of the aircraft, an electromagnetic valve for controlling on-off is arranged on the breathing pipeline, and a pressure switch is further arranged on the breathing pipeline; the electromagnetic valve and the pressure switch are both connected with the controller; the controller is further connected with the passenger cabin pressure sensor and the oxygen supply pressure sensor. The pressure switch is used for detecting pressure in the mask pipeline, and when the pressure is lower than preset pressure, an oxygen supply demand instruction is sent to the controller; the controller is used for generating an opening instruction of the electromagnetic valve corresponding to the pressure switch according to detection values of the passenger cabin pressure sensor and the oxygen supply pressure sensor when an oxygen supply demand instruction sent by any pressure switch is detected, and the opening instruction comprises the opening duration of the electromagnetic valve. Respiration demand feedback is added into oxygen supply time regulation, and oxygen supply demand changes are met by controlling the opening and closing time of the electromagnetic valve according to different height requirements.

A ball valve for a use in a respiration circuit, including a housing defining a ball chamber. The ball chamber communicating with a gas inlet and at least two gas outlets. A ball received in the ball chamber. The ball being configured for rotation about an axis of rotation within the ball chamber. The channel having a channel inlet configured for selective fluid communication with the gas inlet. The channel inlet being in fluid communication with a channel outlet configured for selective fluid communication with at least one of the at least two gas outlets.

The invention discloses an electric turbine anaesthesia machine with an automatic air supply function of an air storage bag and a method, and the anaesthesia machine comprises a turbine which is used as an active inspiration air source; a detachable air storage bag; an air supply one-way valve; the breathing circuit is connected between the turbine outlet and the patient end and comprises an inspiration branch provided with a flow diaphragm, an expiration branch provided with an expiration EV valve and an expiration flow diaphragm, and a patient breathing circuit tank assembly containing the air storage bag and the soda lime tank; a plurality of sensors; the control unit is electrically connected with and controls the turbine and the expiration EV valve, receives signals of the sensor and is used for achieving different breathing ventilation modes. According to the anesthesia machine and method, turbine driving is adopted, the tidal volume adjusting range is wide, and physical limitation of a folding bag is avoided; the air storage bag is externally arranged and replaceable, so that cleaning and maintenance are facilitated; a one-way valve automatic gas supply mechanism ensures continuous and stable gas supply; the device supports various breathing modes, and is suitable for various scenes such as anesthesia maintenance, postoperative awakening, oxygen therapy and the like.

There is provided a flexible, helically wound conduit for a breathing circuit comprising an inlet (1), an outlet (3), and an enclosing wall (2) defining a flow passage between said inlet and said outlet, wherein at least a region of said enclosing wall is permeable to water vapor and one or more of 02 and CO2, and wherein the axial tensile strength of the enclosing wall is greater than 40N. Further provided are limbs comprising the conduit, a method of manufacturing the conduit and the use of the conduit to remove water vapor and / or CO2 from gas exhaled by a patient.

The invention discloses a bidirectional locking device for a breathing circuit of an anaesthesia machine, the bidirectional locking device is fixed on the side surface of a circuit assembly, and the bidirectional locking device sequentially comprises a shell, a spring bolt, a lock cylinder, a pressing shaft, a spring and an end cover; the interior of the shell is divided into two grooves, and the groove in one side is used for containing the lock cylinder. The groove on the other side is used for arranging a spring bolt; the spring and the pressing shaft are sleeved on a shaft in the center of the shell from inside to outside; the end cover is mounted on the shell, and a hole is formed in the end cover and used for allowing the pressing shaft to penetrate through; a spring bolt of the bidirectional locking device is provided with two clamping points which correspond to locking grooves in the side faces of the loop assembly and the loop flip assembly respectively, so that the loop assembly and the loop flip assembly are locked at the same time. The device is convenient to operate, simple and compact in structure, small in occupied space and low in cost.

An example gas mixing device includes: a first inlet port for receiving a flow of nitrous oxide; a second inlet port for receiving a flow of oxygen, wherein the nitrous oxide and the oxygen are mixed to form a gas mixture; a breathing circuit port for providing the gas mixture to a patient; a user interface having a graphical user interface (GUI) displayed thereon, wherein the GUI comprises a touch-and-slide adjuster button configured to control a gas concentration of the nitrous oxide or the oxygen in the gas mixture; and a processor performing operations comprising: receiving information indicating that a user has touched and slid the touch-and-slide adjuster button along a gas concentration scale to a particular concentration setting, and responsively, change a concentration percentage of a respective gas in the gas mixture to correspond to the particular concentration setting.

The utility model discloses a kind of respiratory circuit and tracheal intubation connection fixer, including connection main part, the upper surface side of connection main part is fixedly provided with fixed plate one, the surface of fixed plate one is movably provided with fixed clamp, the bottom end of one side of fixed clamp is provided with fixed base plate, the surface of fixed base plate is provided with lower clamping block, fixed clamp is opened in the surface of fixed base plate side with sliding slot, the inside of sliding slot is movably provided with sliding block, the surface of sliding block is fixedly provided with upper clamping block, the surface of upper clamping block is threadedly connected with adjusting bolt, when facing different specifications pipeline clamping, adjusting bolt can be rotated cooperation sliding slot and sliding block to make upper clamping block adjust in the inside of sliding slot, cooperation lower fixed base plate and lower clamping block can be clamped Work, while the setting of sliding slot can play the role of limit sliding. The utility model has the characteristics of strong practicability and clamping different size pipelines according to actual use.

A moisture removal apparatus for a breathing circuit may include a breathing gas conduit configured to receive a flow of breathing gas having a first humidity level. The apparatus may include a dry gas conduit adjacent to at least a portion of the breathing gas conduit, the dry gas conduit configured to receive a flow of dry gas having a second humidity level lower than the first humidity level. The apparatus may also include a feeding conduit extending through at least a portion of the dry gas conduit, the feeding conduit configured to introduce the dry gas into the dry gas conduit. The apparatus may further include a moisture transmission pathway configured to enable transfer of moisture from the breathing gas to the dry gas based on the humidity differential.

The utility model provides a double-cavity breathing circuit, which relates to the technical field of medical instruments and comprises an inspiration inner tube and an expiration outer tube which are coaxially mounted, a connecting mechanism is inserted and fixed at the front ends of the inspiration inner tube and the expiration outer tube, and the connecting mechanism comprises a mounting seat, a driving sleeve and a reset torsion spring. An inner ring sleeve and an outer ring sleeve are concentrically arranged on the upper side of the mounting seat, a plurality of fixing rib plates are integrally formed between the inner ring sleeve and the outer ring sleeve, the driving sleeve comprises a closed sleeve, a connecting ring and a plurality of inclined fan blades, the reset torsion spring is connected between the outer ring sleeve and the connecting ring, a plurality of vent holes are formed in the circumference of the inner ring sleeve, and the inner ring sleeve is provided with a plurality of air holes. Deflation holes are formed in the positions, corresponding to the height of the vent holes, of the closed sleeve at intervals, and the inner side of the inspiration inner pipe communicates with the expiration outer pipe through the vent holes and the deflation holes. According to the utility model, negative pressure suction is generated in the expiration outer pipe through airflow generated by expiration, so that CO2 waste gas is quickly exhausted.

The utility model relates to the technical field of medical instruments, and discloses a one-way valve for painless bronchofiberscope examination, which comprises a laryngeal mask and a connecting tube communicated with a ventilation catheter of the laryngeal mask, the side wall of the connecting tube is communicated with a breathing loop, and the front end of a bronchofiberscope body penetrates through the connecting tube and the laryngeal mask and extends into a human body. A valve sealing assembly is arranged at the air inlet end of the side, away from the laryngeal mask, of the connecting pipe and used for achieving sealing between the front end of the bronchofiberscope body and the connecting pipe, the valve sealing assembly comprises a valve connecting ring, and an outer-layer valve and an inner-layer valve which are tightly attached to each other are arranged in the valve connecting ring in the air inlet direction; according to the bronchofiberscope, the valve sealing assembly is arranged to replace a sealing cover in the prior art, the same valve sealing assembly can be matched with the front ends of bronchofiberscope bodies of various sizes, the use cost is reduced, meanwhile, the installation efficiency of the bronchofiberscope is improved, and the bronchofiberscope can rapidly enter a diagnosis state.

The utility model relates to a breathing circuit capable of preventing liquid from flowing back, which comprises a pipeline and an accessory, and an extensible elastic swing component is arranged on the inner wall of the pipeline close to a patient; the extensible elastic swing assembly comprises an elastic piece and a movable ball body. One side of the elastic sheet is connected with the inner wall of the pipeline, and the other side of the elastic sheet is connected with the movable ball body; a limiting groove pipe is further arranged in the pipeline, the movable ball is limited in the limiting groove pipe, and the axial direction of the limiting groove pipe is parallel to the axial direction of the pipeline. Compared with the prior art, the extensible elastic swing assembly is arranged at the end, close to a patient, in the pipeline, the extensible elastic swing assembly can automatically adjust airflow resistance when liquid flows back, an alarm system of the breathing machine is triggered, and therefore medical workers are reminded to treat accumulated humidified water or sputum or secretions in time, and the breathing machine is convenient to use. And serious adverse events are avoided.

A near-patient humidification system provides vapor to a respiratory breathing circuit. The system includes an expiratory gas conduit and an inspiratory gas conduit. A patient coupling member is provided for coupling the expiratory and inspiratory gas conduits to a patient interface. A vapor injection unit is located at least partially within the housing of the patient coupling member. The vapor injection unit heats a supply of fluid into vapor and injects the vapor into the inspiratory gas passage of the patient coupling member at a vapor injection location for providing moisture to the inspiratory gas flow. A method of simultaneously and independently controlling the temperature and humidity of inspiratory gas in a respiratory breathing circuit is performed by injecting vapor having a temperature determined as a function of measured temperatures and measured humidities of the breathing gas at different locations along the breathing circuit.

The utility model relates to medical instrument technical field discloses a kind of breathing pipeline kits with humidification tank, including bottom plate, slidingly connected in wetting tank inner side wall;Connecting rod, one end is fixedly connected to bottom plate bottom end;Lead screw, rotationally connected between bracket;Threaded block, threaded connection is in the outside of lead screw, threaded block one side slidingly connected in wetting tank outer side wall, threaded block bottom and connecting rod other end fixed connection.When the wetting degree of oxygen needs to be improved, staff rotates hand wheel, hand wheel drives lead screw to rotate, threaded block that is screw-connected on lead screw moves upward, threaded block drives bottom plate to slide upward by connecting rod, bottom plate drives water level to rise, at this time, the longer the path of oxygen through water, the more sufficient humidification, on the contrary, when the wetting degree needs to be reduced, staff reverses hand wheel, threaded block drives bottom plate to move downward, water level drops, the depth of oxygen through water reduces, and the wetting degree reduces.

According to the breathing pipeline and the breathing machine, the heating wire is arranged in the breathing pipe body or on the outer wall of the breathing pipe body, and the single-wall pipe or the corrugated pipe is arranged on the outer side of the breathing pipe body in a sleeving mode to serve as a heat preservation pipe. The outer sides of the two ends of the breathing tube body and the inner sides of the two ends of the heat preservation tube are sealed through the sealing assemblies, and then an air heat preservation layer is formed between the outer wall of the breathing tube body and the inner wall of the heat preservation tube; compared with an existing heating breathing pipeline, the outer wall of the breathing pipe body can be prevented from making direct contact with the outside, heat loss of the pipe wall of the breathing pipe body is reduced, the temperature difference between the interior of the breathing pipe body and the pipe wall is reduced, and therefore the heating effect of the breathing pipeline is improved, and meanwhile condensate water is more effectively prevented or reduced.

The invention discloses an anaesthesia machine breathing circuit pressure self-adaptive adjusting device which comprises a valve seat, a valve body and a valve cover, a second rod frame is fixedly connected in the valve seat, a lower tip cone is slidably installed in the second rod frame, a second limiting protruding edge is fixedly connected to the inner wall of the valve body, a first limiting protruding edge is fixedly connected to the inner wall of the valve seat, and a second limiting protruding edge is fixedly connected to the inner wall of the valve cover. A sealing rubber ring is clamped between the first limiting protruding edge and the second limiting protruding edge, a sealing floating ball is installed in the valve body in a sliding mode, the sealing floating ball is matched with the sealing rubber ring, and an adjusting groove is formed in the valve cover. A first limiting convex edge and a second limiting convex edge are matched with each other, so that the edge of the sealing rubber ring can be clamped up and down, the sealing rubber ring can be fixed in the device, the position and the angle of the sealing rubber ring are fixed, and the stress angle of the sealing rubber ring can be prevented from deviating; and the sealing rubber ring cannot be effectively attached to the sealing floating ball to form a sealing state.

The application belongs to the field of medical treatment, and provides a shell for installing a breathing circuit module, a breathing circuit module assembly and a medical device, the shell comprising: an upper shell, a first clamping groove being arranged on one end side wall of the upper shell, a second clamping groove being arranged on a side wall adjacent to the first clamping groove of the upper shell; a lower shell, a sliding channel being arranged in the lower shell; and a dismounting mechanism, the dismounting mechanism comprising: a rotating piece, a sliding rod and a reset piece. The shell provided by the application realizes the mounting cooperation and dismounting between the upper shell and the lower shell through the dismounting mechanism, which facilitates the dismounting and separation of the upper shell and the lower shell after each use of a breathing anesthetic, so as to perform a disinfection operation on the breathing circuit module in the shell and the shell itself, which is simple, convenient and fast, and has a high reuse efficiency.

The invention provides an anaesthesia evaporator and an anaesthesia machine, and the anaesthesia evaporator comprises an evaporator disc which is driven by an external force to rotate around the center of the evaporator disc; the N anesthetic evaporation containers are fixed to the evaporator disc around the center of the evaporator disc, anesthetics stored in the anesthetic evaporation containers are different in type, and N is a natural number larger than or equal to 2; by rotating the evaporator disc, the anesthetic evaporation containers to be used are driven to rotate to the same designated position, and the anesthetic evaporation containers at the designated position face a patient; when the to-be-used anesthetic evaporation container rotates to a designated position, the to-be-used anesthetic evaporation container is powered on, and the idle state is switched into the using state; two openings are formed in a shell of the evaporator disc, and one opening is communicated with the anesthetic evaporation container in a use state and is connected to a respiratory system of a patient through a respiratory loop; and the other opening is communicated with the anesthetic evaporation container in an idle state, leads to the outside and is provided with a sealing cover for updating anesthetic.

The invention relates to the field of medical instruments, in particular to a split type breathing circuit structure for an anesthesia machine and the anesthesia machine. The split type breathing circuit structure for the anaesthesia machine comprises a circuit main body (6), a flip cover assembly (7) and a breathing machine assembly (9), the loop body (6) comprises an electronic APL valve seat assembly (17), a sampling pipe (26) used for collecting gas path parameters, a heating assembly with automatic temperature control and overheating protection functions and an electric control exhalation valve (3). The flip assembly (7) is provided with an electronic APL valve (5); the breathing machine assembly (9) is connected with the loop main body (6) and cooperatively controls the electronic APL valve (5), the electric control driving component, the calibration component, the blowing component and the electric control switching component which are connected with the breathing machine assembly (9) through a control panel, and loop automatic ventilation control is achieved.

The utility model provides a rhinobyon assembly, nasal oxygen tube and ventilation treatment equipment, relates to medical instrument technical field, rhinobyon assembly includes rhinobyon main part and a pair of nasal fork tube, the rhinobyon main part is used for being connected with the intake tube, the pair of tubular nasal fork is connected with one side of the rhinobyon main part at interval so as to be communicated with the intake tube through the rhinobyon main part, the nasal plug assembly is characterized in that the nasal plug assembly is used for an open type air path, air resistance pieces are arranged on the two nasal fork tubes, and the air resistance pieces protrude in the radial direction of the nasal fork tubes and are used for blocking overflowing air between the nasal fork tubes and the nostrils of a wearer when the nasal plug assembly is worn. The nasal oxygen cannula comprises the nasal plug assembly. The ventilation treatment equipment comprises the nasal oxygen cannula. The air pressure change in a breathing loop between the expiration stage and the inspiration stage of a patient can be increased, the distinguishing capacity of the equipment for the breathing stage of the patient is improved, more accurate air supply control is achieved, more comfortable high-flow humidifying oxygen therapy experience is provided for the patient, and air is saved to a certain extent.

The invention provides an anesthesia monitoring advanced life support all-in-one machine and a method thereof, and relates to the technical field of advanced life support, the all-in-one machine mainly comprises a respiratory anesthesia part, a monitoring part, an infusion part and a control part; the respiration anesthesia part is used for maintaining respiration of the wounded and executing the respiration anesthesia process and comprises a turbofan, anesthesia target control equipment, respiration loop equipment and a waste gas collector; the breathing loop equipment is used for providing a breathing anesthesia gas path and collecting anesthesia gas data; the infusion part is used for carrying out infusion treatment on the wounded; and the monitoring part is used for collecting and monitoring physiological monitoring data of the wounded. According to the scheme, emergency rescue functions of anesthesia, monitoring, infusion, respiratory support and the like are integrated, the size is small, the weight is light, and the device is particularly suitable for field rapid treatment scenes of batched wounded persons; according to the scheme, multi-source data can be collected and effectively integrated and displayed, the anesthesia state of the wounded can be intelligently evaluated, targeted control can be carried out, and assistance can be provided for treatment decision making.

The utility model discloses an anti-knotting anesthesia breathing pipeline which comprises a heat and humidity exchange filter shell lower cover, and a heat and humidity exchanger shell upper cover is arranged on one side of the heat and humidity exchange filter shell lower cover. A heat and humidity exchange medium and a filter membrane are arranged in the lower cover of the heat and humidity exchange filter shell, a breathing tube I and a breathing tube II are arranged on one side of the upper cover of the heat and humidity exchanger shell, and the upper cover of the heat and humidity exchanger shell further comprises two parallel inner conical joints conforming to YY. Standard regulations. When medical gas such as anesthetic gas is ventilated, bacteria and viruses are filtered through the breathing tube with the regular triangular hole and the filter membrane, heat and humidity exchange is carried out through the heat and humidity exchange medium, the temperature and humidity of the gas suitable for being inhaled are achieved, and finally the gas reaches the airway of a patient. And dead space is reduced, iatrogenic infection of bacteria and viruses and bending and knotting of a breathing pipeline are avoided, the installation process is simplified, and operation of a doctor is facilitated.

Restrictor for an expiratory limb of a breathing circuit

The present invention belongs to the technical field of anesthesia machines, and particularly relates to a method and system for estimating the target drug concentration of inhaled anesthesia. The method includes: obtaining the parameters set by an anesthesia ventilator; obtaining the basic information of a patient; inputting the above data into a pre-established kinetic equation, and using the Runge-Kutta algorithm to calculate the drug concentration inhaled at the patient's mouth end, the alveolar drug concentration, and the effect-site concentration, so as to achieve the estimation of the target drug concentration; the kinetic equation is based on the diffusion process of the breathing circuit of the anesthesia ventilator and the absorption and metabolism process in the human body, and is a relational expression of three concentrations to be solved with the patient's basic information and the parameters set by the anesthesia ventilator. The method of the present invention is applicable to anesthesia ventilators and volatile anesthetics; the established model parameters have physiological significance and can adapt to the individual attributes of patients; the present invention can predict the time when the drug reaches the equilibrium state in the anesthesia circuit and the patient's respiratory system, and obtain the alveolar concentration and effect-site concentration of the anesthetic drug.

A connection for a humidification system is disclosed, the humidification system including a heater base, a humidification chamber, and a breathing circuit. A cradle is removably coupled to the heater base. The cradle includes various sensors, probes, sensor wire connectors, heater wire connectors, and / or other features. The cradle can include features configured to mate with corresponding features on the humidification chamber and the heater base. The cradle includes a memory, such as an EEPROM, or other suitable storage device. When the cradle is seated on the heater base, the memory is electrically connected to the processor and / or memory of the heater base. Different cradle models can be produced for use with different humidification chambers, breathing circuits, and / or therapies. A connector can be configured to connect an inspiratory conduit to a gas outlet port of the humidification chamber. The connector can provide a pneumatic connection to the gas outlet port and an electrical connection to the cradle.

An automatic inhalation system which includes a gas supply system which includes a high pressure system and a medium pressure system, a breathing loop; wherein gas enters the breathing loop from the gas supply system; and wherein the breathing loop further comprises an inhale limb and an exhale limb each comprising at least one flow sensor, at least one CO2 sensor, and at least one O2 sensor. The system further includes a controller, wherein the gas supply system and breathing loop are in digital communication with the controller via an I2C bus and a set of analog inputs; and a touchscreen, wherein the touchscreen displays the diagnostic information on a UI accessed through a password-protected user management system; wherein the system is used to administer gas treatments to patients based on a preset protocol that may be started by either an operator or administrator and edited only by an administrator.