1586 results about "Type ventilator" patented technology

Disclosed herein are systems and methods for providing targeted temperature management (TTM) therapy to a patient. Systems included herein provide an airflow to the patient in additional to a liquid flow that define a thermal energy exchange with the patient. Various systems may provide air at a defined TTM temperature to a thermal contact pad, a mattress or a ventilator that delivers the TTM air to the patient via the ventilation therapy. Also disclosed herein are systems, devices, and methods for preventing, managing, and / or removing perspiration moisture from between the thermal contact pad and the patient. Disclosed herein is a thermal contact pad includes a wicking material to draw moisture away from the patient. Disclosed herein also is a thermal contact pad including airflow that draws moisture away from the patient.

The invention relates to the technical field of medical care informatics, and discloses a laryngeal mask ventilation control method suitable for outpatient anesthesia, which comprises the following steps: before core analysis, injecting and monitoring a high-frequency signal to confirm the integrity of an original breathing waveform data stream; constructing a real-time ventilation waveform trajectory in a differential phase space only on the premise that a data stream is complete, and performing morphological comparison with an individualized baseline template; meanwhile, when a parameter adjustment event of the respirator is monitored, the baseline template is automatically re-calibrated, a collaborative analysis framework with front information source quality inspection and dynamic reference self-adaption capabilities is constructed, ventilation monitoring is converted from passive response to an isolated peak point into active insight to a system dynamics evolution trajectory, and the system dynamics evolution trajectory is optimized. Therefore, the risk of gradual deterioration of the ventilation state caused by tiny air leakage of the laryngeal mask or secretion accumulation can be clinically recognized in an early stage, and intervention time is won for anesthetists.

The invention relates to the technical field of biomedical engineering, and discloses an acute respiratory distress syndrome mechanical ventilation adaptive adjustment control system, which comprises a data acquisition module, a signal preprocessing module, a physiological parameter calculation module, a prediction module, a decision and control logic module and the like. Wherein the prediction module predicts a dynamic lung compliance change trend by using a long short-term memory neural network model, and the decision and control logic module generates a ventilation parameter adjustment instruction according to a prediction result and a clinical safety rule. By adopting the technical scheme, the system overcomes the hysteresis of traditional feedback regulation, reduces the risk of breathing machine related lung injury, optimizes oxygenation and carbon dioxide removal efficiency, and provides an accurate, safe and individualized mechanical ventilation treatment scheme.

The invention relates to a multi-parameter centralized monitoring method, system and equipment for a noninvasive ventilator and a medium. The method comprises the steps that firstly, original parameter data and coding rules of noninvasive respirators of all brands are obtained, format unification processing is conducted on the original parameter data by constructing a standardized data mapping table, and a parameter data set is obtained; transmitting the parameter data set to a local gateway by adopting a low-power-consumption Bluetooth protocol to generate an alarm data set; analyzing the dynamic change trend of the parameters by combining the parameter data set and the alarm data set, and generating a monitoring report data set; and finally, extracting a continuous abnormal trend based on the monitoring report data set, performing priority ranking according to the emergency degree to generate an intervention instruction, and tracking the processing state of the intervention instruction to obtain a final decision data set. According to the method, data intercommunication of noninvasive respirators of different brands is realized, the hysteresis of manual inspection is avoided, the timeliness and accuracy of abnormal response are improved, and the safety of patients is guaranteed.

The invention discloses an artificial intelligence-based ventilator offline auxiliary judgment method, which relates to the technical field of artificial intelligence. The method comprises the following steps: obtaining physiological data and magnetic resonance image data of a patient, obtaining a time series characteristic curve according to the physiological data, and obtaining characteristic data of the patient according to the time series characteristic curve; constructing a standard neural network model, and performing a primary judgment according to the standard neural network model; preprocessing the magnetic resonance image data according to the primary judgment result, and performing grayscale co-occurrence matrix analysis on the preprocessed magnetic resonance image data to obtain a texture feature set of a region corresponding to the magnetic resonance image data; performing similarity analysis on the texture feature set to obtain a texture feature similarity value of a region corresponding to the magnetic resonance image data, and performing a secondary judgment according to the texture feature similarity value; and improving the accuracy of judging the patient's respiratory state through the two judgments.

The invention relates to the technical field of medical instruments, and particularly discloses a deep sleep maintenance algorithm for self-adaptive pressure regulation of a breathing machine, which comprises the following steps: step 1, a data acquisition and preprocessing module is connected with a pressure sensor and a flow sensor in the breathing machine to acquire a breathing pressure signal and a breathing flow rate signal of a patient in real time; 2, the data collecting and preprocessing module further conducts filtering and smoothing processing on the collected respiratory signals, noise and interference components are removed, and normalization processing is conducted on the respiratory flow rate signals; according to the breathing machine self-adaptive pressure regulation micro-awakening suppression algorithm based on the tidal volume dynamic tracking model, by dynamically tracking the tidal volume, the breathing requirement of a patient can be sensed in real time, and the pressure output of the breathing machine is self-adaptively regulated according to the change of the tidal volume; by means of the precise pressure adjusting mode, dyspnea caused by insufficient or too high pressure can be effectively avoided.

A novel clinical decision support system (CDS) helps the clinician set up, maintain, and interpret an esophageal pressure measurement. The esophageal pressure CDS (Pes CDS) would remind the clinician to do an occlusion test whenever the balloon is first inserted or changes dramatically. It could monitor the occlusion test and provide feedback on the performance and success of the occlusion test. Changes in the patient or monitored data can be tracked by looking for changes in the balloon baseline pressure, changes in the amplitude of the pressure waveform, or changes in the pattern of the Pes waveform. Having information from the ventilator will further increase the ability of the system to determine when Pes is changing unexpectedly.

The utility model discloses a breathing machine humidifying tank and a breathing machine system, and relates to the field of medical instruments. The breathing machine humidifying tank comprises a tank body, a guide sleeve, a telescopic water bag and an operating rod. The tank main body is provided with a highest water line; the telescopic water bag is located in the tank body and horizontally arranged, the top of the telescopic water bag is higher than the highest water line, the telescopic water bag comprises a telescopic sleeve and a hard end plate, one end of the telescopic sleeve is connected with the tank body, the hard end plate is connected with the other end of the telescopic sleeve, and a water suction and drainage hole is formed in the hard end plate and lower than the highest water line. The guide sleeve and the telescopic water bag are arranged in the same direction, and the guide sleeve is connected with the tank body and corresponds to the telescopic water bag in position. And the operating rod penetrates through the guide sleeve, is matched with the guide sleeve and is sealed with the guide sleeve, and the operating rod is connected with the hard end plate. The breathing machine humidifying tank is installed on the breathing machine main machine, and a temperature and humidity sensor and a push-pull structure are arranged in a matched mode to obtain the breathing machine system. According to the utility model, the temperature and humidity of the humidified air at the patient end can be optimal.

The present invention discloses an intelligent respiratory support and airway clearance auxiliary system, method, device and storage medium, which relates to the field of medical data processing technology. The data acquisition module is used to obtain real-time parameter data; the respiratory analysis unit analyzes the blood oxygen saturation, oxygen partial pressure and carbon dioxide partial pressure data; the lung image data analysis unit intelligently analyzes the lung auscultation image data to identify the lung sputum blockage; the ventilator waveform analysis unit identifies abnormal waveform data based on the waveform data of the ventilator; the airway clearance module is used to determine whether it is necessary to start the Ilohen expectoration breathing mode according to the intelligent analysis results. The present invention uses advanced data processing technology and algorithms to monitor the patient's breathing in real time, and promptly discover and deal with airway problems. Through systematic data collection and analysis, the efficiency and accuracy of airway clearance are improved, the patient's treatment effect is improved, and the patient can actively expectorate while using a ventilator.

The invention relates to a dual-channel CO2 respiration monitoring device and system based on an intelligent sensor, and the device comprises a CO2 airway adapter which is used for carrying out gas exchange on CO2 discharged by membrane lungs; the hose is used for being matched with the membrane lung exhaust connector to convey CO2 exhausted by the membrane lung; the membrane lung exhaust connector is used for being matched with a hose to convey CO2 exhausted by the membrane lung; based on the dual-channel CO2 respiration monitoring system, dual-channel CO2 respiration monitoring is carried out through an intelligent sensor arranged in the dual-channel CO2 respiration monitoring system; the membrane lung is connected with the membrane lung exhaust connector and the dual-channel CO2 respiration monitoring system based on the intelligent sensor and is used for simulating the lung to perform gas exchange; and the breathing machine is connected with the dual-channel CO2 breathing monitoring system based on the intelligent sensor and is used for supporting natural breathing of the user. According to the invention, the efficiency and accuracy of monitoring the CO2 emission concentration of the membrane lung and the CO2 emission concentration of the breathing machine in real time according to the change condition of CO2 breathing are improved.

The utility model discloses a clean storage system for a household breathing machine. The machine body is provided with a breathing machine placing area, a storage device, an air purification system and a display control component, an air outlet is at least formed in the breathing machine placing area or the part, close to the breathing machine placing area, of the machine body, the storage device is provided with a storage chamber, an exhaust port and a storage port capable of being opened and closed, and the storage chamber is communicated with an air supply device. The air purification system is provided with a fan, an air purification device, an air outlet and an air inlet, an airflow channel in the machine body in the air outlet direction of the air purification device is a clean air area, the air outlet communicates with the airflow channel, the breathing machine containing area forms the clean air area, and the air supply device sucks clean air. The household breathing machine platform is provided with a special platform space for placing various types of household breathing machines, has an air source filtering and purifying function, and has the advantages that accessories / parts of the household breathing machines can be cleanly accommodated and stored, indoor environment air can be purified, and the like.

The invention relates to the technical field of general control or regulation systems, in particular to a critical patient respirator parameter adaptive optimization control method, which comprises the following steps of: acquiring and processing physiological signals; constructing a dynamic respiration mechanical model based on a sliding time window recursive recognition algorithm; a man-machine coordination index is calculated, and the desynchrony degree is quantified; generating a ventilation parameter adjustment scheme through the reinforcement learning strategy network; and executing smoothing parameter adjustment, and introducing a safety boundary and a secondary fine adjustment mechanism. The breathing state of the critical patient can be accurately perceived and intelligently regulated and controlled, the ventilation efficiency is guaranteed, meanwhile, the man-machine synchronism and safety are improved, the medical care burden is relieved, and the prognosis of the patient is improved.

The invention relates to the technical field of precise monitoring medical treatment, and discloses a breathing machine control strategy debugging method and system based on an EIT image, and the method comprises the steps: constructing a breathing machine control algorithm model based on deep learning through a case library, and representing a mapping relation between a case EIT image and a key index thereof and a breathing machine ventilation control parameter; acquiring current EIT images of a plurality of respiratory cycles of the patient, inputting the current EIT images into the respirator control algorithm model, matching the most similar case from the case library, and performing respirator ventilation control by using target respirator ventilation control parameters of the most similar case; operation is controlled to start, adjustment EIT images and key indexes of a plurality of respiratory cycles of the patient are obtained, and the adjustment EIT images and the key indexes are compared with the EIT images and the key indexes of the most similar cases for judgment; if the requirements are met, continuously controlling and updating the case library, and optimizing the model; otherwise, switching the control mode. Determination of breathing machine control parameters participated by a patient is reduced, trial and error times of clinical parameter adjustment are reduced, and patient safety and control accuracy are both considered.

The invention relates to the technical field of medical auxiliary instruments, in particular to a newborn body position fixator of an invasive ventilator. Comprising a mounting rod, hinge rods are hinged to the two ends of the mounting rod, sliding rods are slidably arranged on the hinge rods, connecting rods are hinged to the sliding rods, and the lower ends of the connecting rods slidably penetrate through corresponding lower limb supporting plates and upper limb lifting plates; the telescopic end of the second electric push rod is connected with a connecting frame, and the two sides of the connecting frame are in contact fit with the bottom ends of the connecting rods on the same side. By introducing the lifting mechanism and the limiting mechanism, accurate adjustment and stable fixation of the body position of the newborn are achieved, the two mechanisms can operate independently and can also be used in a combined mode, a surrounding type limiting structure is formed, more stable and reliable support is provided compared with a traditional soft material, body position deviation of the newborn during treatment is prevented, and the treatment effect of the newborn is improved. Therefore, the treatment effect is guaranteed.

The invention discloses a nasopharynx ventilation catheter for a multifunctional breathing machine. The nasopharynx ventilation catheter comprises a flexible catheter body, an anti-bending supporting part, a dosing assembly, a sputum suction assembly, a monitoring assembly and an air bag mechanism. The air outlet end of the flexible conduit is provided with an antibacterial conduit head, and the air inlet end is provided with a connecting assembly; the antibacterial catheter head is provided with a hole channel assembly and a medicine feeding opening, and the flexible catheter is provided with a suction opening. The anti-bending supporting part is mounted on the inner wall of the flexible conduit; one end of the dosing assembly is communicated with the dosing port; one end of the sputum suction assembly is communicated with the suction port; the detection end of the monitoring assembly is located in the inner cavity of the flexible catheter and close to the duct assembly, and the monitoring assembly is used for monitoring the concentration of carbon dioxide in the oral and nasal cavity; the air bag mechanism comprises a first air bag, a second air bag and two air bag air supply assemblies. The device has the functions of drug delivery, sputum suction, carbon dioxide concentration monitoring and the like, meanwhile, the nasal mucosa can be free of damage or obviously relieved, the device can be conveniently inserted into the nasal cavity, the fixing effect is good, and the ventilation effect is good.

Provided is the OFF-VENT breathing system. The system uses novel combinations of the venturi effect, PEEP adapters, HMEs, and the adaptation of a novel oxygen delivery system for the creation of high flow therapy to maintain open airways while maintaining access to the patient's airways for medical instruments, other accessories, or to assist breathing in general. The system is designed to create high flow oxygen therapy in a manner that does not require the use of ventilators, active heating humidifiers and other expensive equipment. Embodiments described include a novel integration of the venturi system into a nasal cannula apparatus, and the novel combination of the venturi effect and a PEEP adapter into breathing systems that might include hyperinflation and Mapleson circuits.

The invention discloses a clean storage system for a household breathing machine. The machine body is provided with a breathing machine placing area, a storage device, an air purification system and a display control component, an air outlet is at least formed in the breathing machine placing area or the part, close to the breathing machine placing area, of the machine body, the storage device is provided with a storage chamber, an exhaust port and a storage port capable of being opened and closed, and the storage chamber is communicated with an air supply device. The air purification system is provided with a fan, an air purification device, an air outlet and an air inlet, an airflow channel in the machine body in the air outlet direction of the air purification device is a clean air area, the air outlet communicates with the airflow channel, the breathing machine containing area forms the clean air area, and the air supply device sucks clean air. The household breathing machine platform has a special platform space for placing various types of household breathing machines, has an air source filtering and purifying function, and has the advantages that accessories / parts of the household breathing machines can be cleanly stored, indoor environment air can be purified, and the like.

The embodiment of the present invention provides a flow regulation method for ventilation therapy equipment and ventilation therapy equipment, including: detecting the current breathing parameters of the user, and determining the current breathing state of the user according to the breathing parameters; then outputting with a corresponding flow output value according to the current breathing state of the user; after controlling the output valve according to the flow output value, obtaining the breathing parameters of the user again, and adjusting the flow value of the output valve according to the change of the breathing parameters; by monitoring the breathing state of the user, adjusting the output airflow flow value of the equipment in real time, specifying different ventilator output working plans according to the breathing needs of different users, so as to solve the problem in the prior art that the adjustment result of the preset algorithm of the equipment is too uniform and the support for the different needs of different users is poor.

The invention discloses a respiratory intensive care method and system, and the method comprises the steps: deploying an acoustic sensor on a respirator loop, and synchronously obtaining the ventilation parameters and optional temperature and humidity data of a respirator; preprocessing the acquired multi-modal data, and converting an acoustic signal into a time-frequency spectrogram; the preprocessed data are input into a multi-modal fusion fault recognition model, the model comprises a convolutional neural network branch used for extracting acoustic features and a recurrent neural network branch used for capturing time sequence dynamics, and the probability of a specific fault precursor is output by combining the features of all the branches through a fusion layer; and finally, performing early warning decision according to the probability. The invention also comprises a system for implementing the method. According to the invention, through deep fusion of acoustic, pneumatic and thermodynamic data, accurate prediction of fault precursor is realized, and an earlier time window is provided for clinical intervention, so that the monitoring safety is improved.

The invention discloses a constant-frequency positive-pressure superposition high-frequency oscillation supporting device and method applied to a breathing machine, and belongs to the technical field of medical breathing machines, and the constant-frequency positive-pressure superposition high-frequency oscillation supporting device comprises a monitoring module for monitoring physical state data of a patient; the evaluation module is used for evaluating whether auxiliary sputum excretion operation needs to be carried out or not according to the physical state data; the equipment control module is used for determining ventilation parameters of the ventilation equipment and foam driving parameters of the foam driving equipment according to the body state data; the ventilation equipment is used for providing ventilation airflow and ventilation pressure for the patient according to the ventilation parameters; the lung sputum monitoring module is used for monitoring the lung sputum discharge state of the patient and adjusting foam driving parameters according to the lung sputum discharge state. According to the breathing machine, the combination of ventilation and sputum excretion functions of the breathing machine is realized through a method of combining a foam-driven sputum excretion technology with a ventilation technology.

Disclosed is an NO delivery device for supplying an NO-containing gas, including an NO injection line, a flow rate measurement device and a valve device. The valve device is normally closed. An emergency line connected to the injection line includes an emergency solenoid valve, which is normally open, and a flow rate control device. An operating unit operates these elements. In the event of malfunction of the operating unit, the emergency solenoid valve passes to an open position, whilst the valve device passes to a closed position. The flow rate control device supplies the gas at a pre-fixed emergency flow rate of gas, determined on the basis of the gas flow rate measurements supplied by the flow rate measurement device during the normal functioning of the device prior to the malfunction. Gas supply installation including such an NO delivery device and a medical ventilator.

The invention relates to a working parameter adjusting method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring gas pressure and gas flow rate output by a breathing machine and collected by a breathing machine sensor; determining breathing information of the target user according to the gas pressure and the gas flow rate; the breathing information comprises at least one of breathing frequency, real-time tidal volume and breathing quality data; determining physiological state information of the target user according to the breathing information and a physiological state threshold value; and adjusting working parameters of the breathing machine based on the physiological state information. By analyzing the gas pressure and flow velocity data collected by the respirator sensor in real time, the breathing frequency, tidal volume and other key parameters of a user can be accurately determined, the breathing state of a patient is intelligently evaluated, the working parameters of the respirator are automatically adjusted according to the evaluation result, and the flexibility of the working parameters is improved.

The invention discloses a portable breathing machine for the emergency department, and relates to the field of portable breathing machines, the portable breathing machine comprises a machine body and a handle fixedly mounted at the upper end of the machine body, a controller and a control knob are fixedly mounted at the front end of the machine body, a protective cover is rotatably mounted at the front end of the machine body, and a display screen is arranged in the machine body. And a butt joint pipe is fixedly mounted on the outer side of the machine body. According to the portable breathing machine for the emergency department, the display screen can be protected, damage caused by accidental collision of the display screen is avoided, meanwhile, limiting is conducted after the protective cover is closed, the closing stability of the protective cover can be guaranteed, and the protective effect on the display screen is further guaranteed; the angle of the display screen is limited according to the air pressure sealing principle, the angle of the display screen can be limited, when the display screen is extruded by external force, the air pressure sealing condition is damaged, the display screen is made to rotate, and the self-protection effect on the display screen is further improved.

The invention relates to a treatment equipment operation parameter adjusting method and device, equipment and a storage medium. The method comprises the steps that under the condition that breathing machine equipment outputs mixed gas when the breathing machine equipment and oxygenerator equipment in the treatment system work together, monitoring parameters of target treatment equipment are obtained, and according to the monitoring parameters of the target treatment equipment, output operation parameters of the target treatment equipment are adjusted, the current error value between the actual oxygen concentration of oxygen output by the oxygen generator equipment and the target oxygen concentration meets the preset error condition after the output operation parameters are adjusted, and the target treatment equipment is breathing machine equipment or oxygen generator equipment. By adopting the method, the output operation parameters of the target treatment equipment can be reasonably adjusted through the constraint conditions, so that the oxygen concentration of oxygen output by the oxygenerator equipment can be within a certain reasonable range after the output operation parameters of the target treatment equipment are adjusted.

The invention relates to the technical field of respirator masks, and particularly discloses a noninvasive respirator mask auxiliary fixing device which comprises a machine body, an air delivery pipe and a mask, one end of the air delivery pipe is connected to the machine body, the air delivery pipe is used for delivering oxygen, the mask is connected to the other end of the air delivery pipe, and the mask is worn on the face of a patient to form a closed air path space. The fixing rope is connected to the mask and used for fixing the mask, the judging assembly is connected to the mask, when a patient is treated, the judging assembly is used for monitoring whether the mask is sealed or not and judging whether the gas conveying pipe is blocked or not, and in the using process, the sealing state of the mask can be monitored in real time, oxygen leakage is prevented, and the mask is prevented from leaking. The adjusting assembly is connected to the mask and connected with the fixing rope, the adjusting assembly is used for adjusting the tightness degree of the fixing rope, and when the judging assembly judges that the mask leaks air, the adjusting assembly is started and adjusts the tightness degree of the fixing rope.

The application discloses a ventilator humidification tank, which comprises a tank body and an internal chamber. The tank body is provided with an air flow inlet and an air flow outlet, and the internal chamber can contain humidification liquid and is communicated with an external air path. The tank body comprises an insertion end and a holding end. The insertion end can be inserted into the inside of a ventilator main machine. The humidification tank further comprises an air inlet flow guide part with a first end and a second end. The first end is in sealed connection with the air flow inlet, and the second end is communicated with the internal chamber. The air inlet flow guide part comprises a flow guide pipe with a bending extension. The flow guide pipe comprises a first flow channel and a second flow channel. When the humidification tank is rotated by not more than 90 degrees in any direction from a working position, the humidification liquid cannot enter the first flow channel, so as to prevent the humidification liquid from flowing out of the air flow inlet. According to the application, the air path inside the air inlet flow guide part is designed to be bent and extended, so that the reverse flow path of the humidification liquid in the flow guide pipe is more tortuous. Even if the machine body is tilted, the humidification liquid will not flow back, so that the safety of the air blower is ensured.

The utility model discloses a sinusoidal breathing waveform simulation device, including a cylinder, a slide, a cam mechanism and a driving mechanism, wherein the cylinder includes an air inlet and an air outlet for connecting a ventilator, the slide is connected to the piston rod of the cylinder; the cam mechanism is connected to the slide, and the cam mechanism drives the slide to move back and forth to drive the piston rod to move back and forth; the driving mechanism is connected to the cam mechanism in a transmission manner to drive the cam mechanism to rotate. The sinusoidal breathing waveform simulation device disclosed in the utility model embodiment has a simple structure and is easy to operate. The cam mechanism and the slide are matched to drive the piston rod to move back and forth. Compared with the crank rocker mechanism, the dead point is eliminated, and the stability and reliability of the device are improved.

The utility model relates to a noise reduction structure and a noise reduction device of a fan and ventilation treatment equipment, and relates to the technical field of breathing machines. The noise reduction structure of the draught fan comprises a flexible first draught fan sleeve. Due to the fact that the flexible first draught fan sleeve can at least cover a part of the draught fan, vibration generated by the draught fan in operation can be effectively buffered, sound isolation is carried out, and the noise reduction effect is achieved; in addition, a supporting part, a fixing part and a limiting part on the first fan sleeve can effectively limit the first fan sleeve when the first fan sleeve is fixedly installed, so that a fan installed in the first fan sleeve can be stably fixed when vibration is generated in the operation process, and furthermore, due to the fact that a hanging structure where the limiting part is located is also arranged to be a flexible structure, the fan can be stably installed on the first fan sleeve. And vibration generated during operation of the fan can be effectively buffered, so that the stability of fixed installation of the fan is improved.