27 results about "Respiratory circulation" patented technology

The application discloses a self-adjusting breathing training device, which comprises a gas control valve sleeve, the gas control valve sleeve comprises an inclined side wall, the gas control valve sleeve comprises a breathing interface and an atmosphere interface, a movable valve plug is arranged between the breathing interface and the atmosphere interface, and a gas path channel is formed between the edge of the movable valve plug and the inclined side wall. The application can accurately quantitatively control the size of impedance, so that the load of a patient in a training process is within a controllable range, the analysis and adjustment of a training plan of the patient are facilitated, the gas path channel can be adjusted and adapted according to the training intensity of the patient to obtain different impedance, the inspiratory muscle can be trained, and the expiratory muscle and the inspiratory muscle can be simultaneously trained in one breathing cycle.

This invention discloses a low-pass filtered non-breath-hold saline angiography combined with cardiac mirror contrast imaging for lung perfusion imaging, belonging to the field of medical imaging technology. The method includes the following steps: S1: determining whether the subject's tidal impedance variation meets the imaging criteria; S2: injecting contrast agent into the subject to perform angiography; S3: obtaining an impedance decrease signal; S4: combining cardiac mirror contrast imaging with lung perfusion images. This invention solves the problem of low success rate of saline angiography in existing technologies, achieves separation of thoracic impedance caused by tidal breathing and thoracic impedance caused by saline angiography, reduces the influence of the cardiac region on lung perfusion images, further improves the accuracy of lung perfusion imaging, greatly reduces the interference of breath-holding on respiratory circulation, improves the simplicity of clinical application, and expands clinical application scenarios.

The invention relates to the technical field of nursing after lung transplantation, in particular to a sequential early warning method for human body composition analysis and non-tubular lung transplantation liquid imbalance, which comprises the following steps of: collecting human body composition analysis, spontaneous respiration, circulation functions and laboratory indexes of a patient after lung transplantation; monitoring frequency and key indexes are set based on 0-6 hours (an ultrahigh-risk period), 6-24 hours (a high-risk period) and 24-72 hours (a recovery period) after operation. A multi-dimensional comprehensive score is calculated through multiple parameters, a liquid state risk grade is determined, early warning of a corresponding grade is started in combination with an early warning condition, a grading intervention strategy is executed accordingly, dynamic monitoring and accurate management of postoperative liquid unbalance are achieved, subjective judgment is converted into a quantitative result through fusion of human body composition analysis and spontaneous respiration parameters, and the postoperative liquid unbalance early warning effect is achieved. And the identification accuracy of excessive liquid or insufficient liquid is obviously improved.

The utility model discloses a combined body position pad for infants, which comprises a soft pad with eight adhesive sides, ladder-shaped concave limb pads are adhered and connected to four sides of the soft pad with the eight adhesive sides, and two semi-arc chest, belly and back long soft pads are adhered and connected to the upper surface of the soft pad with the eight adhesive sides. A round soft cushion is arranged on one side of the eight-edge sticking and fixing soft cushion, a semi-arc neck pillow soft cushion is arranged on the other side of the round soft cushion, and a hollow head ring soft cushion is arranged on the other side of the semi-arc neck pillow soft cushion. The combined type body position pad for the infants can be adjusted at will according to the figure of the infants, the operation field is fully exposed, the body position pad is soft in material and protects the skin of the infants, pressure injuries are reduced, the limb supporting pads are detachable, the direction of the limb supporting pads can be adjusted, limbs of the infants can be fixed and observed easily, and the combined type body position pad for the infants is designed to meet placement of various operation body positions. A breathing circulation system is not influenced, so that the practicability is improved.

The present technology is directed to a respiratory pressure therapy system, that includes a plenum chamber pressurisable to a therapeutic pressure above ambient air pressure, a seal-forming structure to form a seal with an entrance to the patient's airways to maintain said therapeutic pressure in the plenum chamber throughout the patient's respiratory cycle in use, a positioning and stabilising structure constructed and arranged to provide an elastic force to hold the seal-forming structure in a therapeutically effective position on the patient's head, a blower configured to generate the flow of air and pressurise the plenum chamber to the therapeutic pressure, the blower having a motor, the blower being connected to the plenum chamber such that the blower is suspended from the patient's head and the axis of rotation of the motor is perpendicular to the patient's sagittal plane, and a power supply configured to provide electrical power to the blower.

The present invention relates to an adjustable headgear tube for a patient interface. One aspect of the technology includes a positioning and stabilising structure to hold a seal-forming structure in a therapeutically effective position on the head of a patient. The seal-forming structure can be constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's airways to deliver a flow of air at a therapeutic pressure of at least 4 cmH20 relative to ambient air pressure throughout the patient's respiratory cycle in use. The positioning and stabilising structure can include a front crown strap and a rear strap, the front crown strap being arranged to contact at least one region of the patient's head superior to an otobasion superior of the patient's head in use. The positioning and stabilising structure can include an adjustment mechanism for adjusting the front crown strap and the rear strap relative to the patient's head, the adjustment mechanism being arranged for a single operation to adjust both the front crown strap and the rear strap to enable the positioning and stabilising structure to fit different sized heads.

A patient interface includes a plenum chamber and at least three plenum chamber inlet ports. A seal-forming structure is arranged to form a seal at least at the entrance of the patient's nares and to maintain a therapeutic pressure in the plenum chamber throughout the patient's respiratory cycle. The interface further includes a positioning and stabilising structure that includes at least four straps, at least three of which define a channel therein, with a conduit provided within each channel. Each conduit includes an interface connector for connecting the conduit to a respective one of the inlet ports and a connection port for connecting to an air circuit in use, with the connection port in fluid communication with each conduit. The plenum chamber is provided with at least one pressure measurement port. A positioning and stabilising structure is also disclosed.

The invention relates to the field of gas breathing circulation regeneration, and discloses a gas breathing circulation system based on bionic half gills and an underwater respirator, the gas breathing circulation system comprises a respirator, the respirator is used for breathing interaction of a user; the bionic half gill is internally provided with a permeable diaphragm for air-water exchange; the respirator and the bionic half gill are connected in series through a connecting pipeline to form a gas circulation loop; based on the characteristic that the solubility and the mass transfer rate of carbon dioxide in water are far higher than those of oxygen, the scheme realizes that carbon dioxide is efficiently transferred only by a physical diaphragm without a chemical adsorbent, so that not only is the chemical risk thoroughly eliminated, but also the utilization rate of oxygen is increased by several times by recycling residual oxygen in exhaled gas; and finally, the underwater operation time is remarkably prolonged under the same oxygen carrying amount, meanwhile, the breathing comfort is guaranteed through the gas adjusting cavity, intelligent regulation and control of gas components are achieved through the exhaust port, and the system has safety, high efficiency and engineering feasibility.

A patient interface, a respiratory pressure treatment device, a humidifier, and an air circuit are disclosed. A patient interface for delivering a pressurized respiratory airflow to an airway of a patient, comprising: an inflatable base capable of being pressurized to a treatment pressure of at least 6 cmH2O higher than ambient air pressure; a seal-forming structure forms a seal with a patient's facial area around and inside the nostril of the patient that, in use, maintains therapeutic pressure in the inflated base throughout the patient's breathing cycle. The seal-forming structure comprises a stent base and a pair of protrusions extending from the stent base, the stent base forming a seal with the nostrils, each protrusion having an opening for delivering a flow of air at a therapeutic pressure to the nostrils in use, each protrusion being inserted or partially inserted into one of the nostrils in use; the stent base is supported on the inflatable base and a portion of the stent base and / or a portion of the inflatable base form one or more folds for decoupling movement of the stent base from the inflatable base.

The present application relates to the technical field of critical medical respiratory circulation support monitoring, in particular to a membrane lung and respirator end CO distinguishing monitoring method and system. The present application collects membrane lung and respirator related signals through deploying a heterogeneous sensor network composed of multi-modal sensing array and carries out space-time calibration, develops a dynamic decoupling algorithm combining a blood vessel tree-alveolar coupling model, deduces a pure mechanical blood flow impact component at the membrane lung end and a blood flow oscillation component at the respirator end, then utilizes a parallel filter group with parameter self-correction function and a reference signal to dynamically update the cutoff frequency to realize complete separation of the CO signal frequency domain at both ends, finally eliminates common mode interference through multi-sensor fusion and distinguishes the contribution degree of the anatomical dead space and the membrane lung effective perfusion area by means of a joint matrix, effectively solving the problem that the prior art cannot accurately distinguish the membrane lung end and the respirator end CO.

The invention discloses a neonatal resuscitation auxiliary system based on white noise and bionic stroking. The neonatal resuscitation auxiliary system comprises a resuscitation master control module, a white noise generation module, a bionic stroking module, a physical sign monitoring module and a man-machine interaction module. The white noise generation module comprises an audio processing unit, a loudspeaking unit and a volume adjusting unit, and is used for generating and playing white noise with a specific frequency spectrum and a sound pressure level; the bionic stroking module comprises a driving unit, a stroking execution unit and a pressure sensing unit; the physical sign monitoring module comprises a heart rate sensing unit, a blood oxygen sensing unit and a body temperature sensing unit; the man-machine interaction module comprises a display screen and a keyboard. According to the invention, by combining two kinds of stimuli of white noise and stroking according with neonatal neurophysiological characteristics, a synergistic effect is generated, the stability of respiratory circulation is more effectively promoted, the uncertainty of traditional manual operation stimuli is replaced, and the stimuli parameters can be accurately controlled and repeated, so that clinical research and effect evaluation are facilitated.

The invention relates to a patient interface which comprises a plenum chamber for a patient interface, and a positioning and stabilising structure. The plenum chamber is pressurisable to a therapeutic pressure of at least 6 cmH2O above ambient air pressure throughout a patient's respiratory cycle in use, and comprises one or more walls, one or more plenum chamber inlet ports, and a seal-forming structure. The one or more walls are at least partially enclosing a volume of space. The one or more plenum chamber inlet ports are sized and structured to receive a flow of air at the therapeutic pressure for breathing by a patient throughout the patient's respiratory cycle in use. The seal-forming structure is constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's airways. The seal-forming structure comprises a nasal portion having at least one nasal hole configured to deliver the flow of air at said therapeutic pressure to an entrance to the patient's nares in use. The seal-forming structure comprises an oral portion having an oral hole configured to deliver the flow of air at said therapeutic pressure to an entrance to the patient's mouth in use. The seal-forming structure is constructed and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patient's respiratory cycle in use. The positioning and stabilising structure is configured to generate a force to hold the seal-forming structure in a therapeutically effective position on the patient's head. The nasal portion of the seal-forming structure is configured to seal against an inferior periphery of the patient's nose, and has a pair of nasal holes configured to deliver the flow of air to the patient's corresponding nares in use. The seal-forming structure comprises a bridge portion between the pair of nasal holes. The bridge portion is provided between a central portion of the nasal portion that is configured to be positioned inferior to the patient's pronasale in use and a lip superior portion of the nasal portion that is configured to seal against the patient's lip superior in use. The bridge portion is slack to allow movement of the central portion away from the lip superior portion in use.

The present invention relates to a respiratory system. Systems and methods for performing respiratory therapy in a respiratory system can regulate the flow of respiratory gases to a patient based on a detected patient respiratory cycle. The respiratory system can include a non-sealing patient interface. The respiratory system can be configured to deliver high flow therapy. The system can synchronize the flow rate with the detected patient respiratory cycle. The magnitude of the flow rate variation can be based in part on a user-selected value. The regulation of the flow rate can be accomplished by using a positive feedback system to control the motor speed. The regulation of the flow rate can also be limited by the controller, thereby preventing the flow rate from crossing minimum and / or maximum thresholds.

One aspect of the present technology includes a positioning and stabilising structure to hold a seal-forming structure in a therapeutically effective position on a patient's head. The seal-forming structure can be constructed and arranged to form a seal with a region of the patient's face surrounding the entrance of the patient's airways to deliver a flow of air at a therapeutic pressure of at least 4 cmH20 relative to ambient air pressure throughout the patient's respiratory cycle in use. The positioning and stabilising structure can include a front hoop and a rear strap, the front hoop being arranged to contact at least one region of the patient's head superior to the otobasion superior of the patient's head in use. The positioning and stabilising structure can include an adjustment mechanism for adjusting the front hoop and the rear strap relative to the patient's head, the adjustment mechanism being arranged for a single operation to adjust both the front hoop and the rear strap to enable the positioning and stabilising structure to fit different sized heads.

A patient interface may have a frame and a seal-forming structure. The frame may at least partially form a plenum chamber pressurisable to a therapeutic pressure. The seal-forming structure may be constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's airways, said seal-forming structure having a hole therein such that the flow of air at said therapeutic pressure is delivered to at least an entrance to the patient's nares, the seal-forming structure constructed and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patient's respiratory cycle in use. The seal-forming structure may comprise a textile seal member adapted to sealingly engage the patient's face in use

The invention discloses an oropharyngeal ventilation device for the anesthesiology department based on an oxygen catheter, and belongs to the field of medical instruments, the oropharyngeal ventilation device comprises a catheter body, the catheter body is provided with a partition mechanism, and the partition mechanism is arranged in the catheter body and used for ensuring smooth ventilation and oxygen supply of a patient; the lubricating assembly is arranged on the tube body, and the lubricating assembly is used for enabling normal saline for lubricating to overflow when the tube body is inserted into the throat of the patient; the detection assembly is arranged at the end, located in the throat of the patient, of the tube body, and the detection assembly is used for detecting whether secretions in the throat of the patient block the tube body or not; the suction assembly is arranged in the tube body, the suction assembly is used for being matched with the detection assembly to suck and separate secretions, an independent gas circulation path is constructed in the tube body through the partition mechanism, normal ventilation (carbon dioxide discharge and air suction) and stable oxygen supply of a patient are guaranteed respectively, mutual interference between ventilation and oxygen delivery airflow is avoided, and the oxygen delivery efficiency is improved. And the integrity of breathing circulation is ensured.

The invention provides a breathing exercise device, which comprises a main cavity, a main body, an auxiliary cavity and an auxiliary body, wherein an opening communicated with the outside is formed in the lower end; the sliding piece is installed in the main cavity in a sealed and sliding mode; the lower side of the air suction cavity is connected with the main cavity, and an air suction floating ball is arranged in the air suction cavity; the upper side of the expiration cavity is connected with the main cavity, and an expiration floating ball is arranged in the expiration cavity; the flow dividing mechanism is arranged on the inner side of the main cavity and divides the main cavity into two cavities, when inhaling is conducted through the inhaling cavity, the flow dividing mechanism can exhaust air stored in the cavity on the side connected with the exhaling cavity, and when exhaling is conducted through the exhaling cavity, the flow dividing mechanism can inhale air from the outside and store the air in the cavity on the side connected with the inhaling cavity. The technical problems that in the prior art, breathing circulation exercise cannot be conducted for a long time, and the breathing gas capacity cannot be accurately detected at the same time can be solved.

The present application relates to medical data analysis technical field, specifically to the medical record data full information acquisition synchronization and analysis method based on ICU robot, including the following steps: obtaining multiple monitoring and device parameters and corresponding advancing according to time, combining cross-device running state and monitoring project pairing, supplementing key parameters such as oxygen partial pressure in trend comparison, forming continuous chain of respiratory cycle and systemic state, in the present application, by corresponding multiple source monitoring and testing data according to time in the acquisition process, keeping the consistency of differentiated source information in the advancement, through the separation and reorganization of cross-device data, physiological changes and running state are synchronously displayed, missing parameters are supplemented in trend comparison, the continuous link of respiratory cycle and systemic state is constructed, and medical orders, testing and imaging data are embedded in the data chain according to time, so that text and image are accumulated synchronously with physiological information, forming multidimensional information archives, enhancing the coherence and traceability of disease analysis.

The present invention relates to a patient interface for sealed delivery of a flow of air at a continuously positive pressure with respect to ambient air pressure to an entrance to a patient's airways including at least an entrance of a patient's nares. The patient interface is configured to maintain a therapy pressure in a range of about 4 cmH2O to about 30 cmH2O above ambient air pressure in use, throughout a patient's respiratory cycle, while the patient is sleeping, to ameliorate sleep disordered breathing. The patient interface comprises a plenum chamber at least partially forming a cavity pressurisable to a therapeutic pressure of at least 6 cmH2O above ambient air pressure. The plenum chamber includes a plenum chamber inlet port sized and structured to receive the flow of air at the therapeutic pressure for breathing by a patient. The patient interface further comprises a seal-forming structure having a textile membrane constructed and arranged to form a seal with a region of the patient's face surrounding the entrance to the patient's airways inferior to a nasal bridge region of the patient's face. Said textile membrane has at least one hole such that the flow of air at said therapeutic pressure is delivered to at least the entrance to the patient's nares. The seal-forming structure is constructed and arranged to maintain said therapeutic pressure in the cavity throughout the patient's respiratory cycle in use. The textile membrane comprises a first layer constructed from a textile material and configured to contact the patient's face in use; and a second layer connected to the first layer, the second layer constructed from an elastomeric material and forming a wall of the cavity, wherein the textile membrane includes a three-dimensional shape having multiple curvatures. The elastomeric material of the second layer is air impermeable and configured to block the flow of air from exiting the cavity in use The textile material of the first layer is air permeable such that, in use, the textile material is configured to allow the flow of air to pass through the textile material to provide a cooling effect to the patient's skin contacting the first layer.

The application discloses an oropharyngeal ventilation device for anesthesiology department based on an oxygen supply pipe and belongs to the field of medical appliances, which comprises a pipe body, a partition mechanism arranged on the pipe body and used for ensuring smooth ventilation and oxygen supply of a patient, a lubricating assembly arranged on the pipe body and used for overflowing physiological saline for lubrication when the pipe body is inserted into a laryngeal pipe of the patient, a detection assembly arranged at one end of the pipe body located in the laryngeal pipe of the patient and used for detecting whether the pipe body is blocked by secretions in the laryngeal pipe of the patient, and a suction assembly arranged in the pipe body and used for cooperating with the detection assembly to separate the secretions. The partition mechanism constructs independent gas flow paths in the pipe body, respectively ensures normal ventilation (discharge of carbon dioxide and inhalation of air) and stable oxygen supply of the patient, avoids mutual interference of the ventilation and oxygen supply gas flows, and ensures the integrity of the respiratory cycle.

Preferred embodiments relate to devices and methods for stabilizing breathing during sleep including providing a face mask having a trap, the mask assembly defining a reservoir to retain CO2 from exhaled breath by a user; retaining CO2 from the exhaled breath, wherein the reservoir comprises a plurality of cavities that each retain a portion of exhaled CO2; and recirculating at least a portion of the retained CO2 to the user in one or more subsequent breathing cycles.

The invention relates to a method for operating a medical imaging device for generating an image data set of a measurement region of a patient which is influenced by respiratory motion, the measurement region comprising at least one z-position, the image data set comprising at least one slice image data set of the at least one z-position, the method comprising: providing a breathing curve of the patient by means of a first interface, which describes the respiratory motion of the patient over at least one breathing cycle; automatically deriving at least one measurement parameter by means of a calculation unit on the basis of the provided breathing curve, the derived measurement parameter determining a temporal resolution of the slice image data set; operating the medical imaging device to generate the image data set by means of a control unit on the basis of the automatically derived measurement parameter, wherein for the at least one z-position a plurality of projection data sets from different projection angles in a relative rotational motion between a radiation source of the medical device and the patient are detected and on the basis thereof the slice image data set of the image data set is generated.

This invention belongs to the field of vacuum lamination technology and discloses a lamination breathing control method combined with vacuum extraction using a perforated plate. The lamination breathing control device includes a body with a movable push plate fixedly connected to it via a cylinder. The movable push plate is slidably connected to the middle of the body. Several guide plates slide against the outer side of the movable push plate, and both ends of the guide plates are fixed to the body. Through the cooperation of structures such as triangular plates, side plates, and rotating rods, the multi-layer chip components are conveniently and neatly arranged in the center. During the closing process, the side plates drive the triangular plates to automatically squeeze the four corners of the chip components, causing each layer of chip components to move synchronously and center. After the multi-layer chip components are neatly arranged, it facilitates balanced airflow during the breathing cycle. Furthermore, after the triangular plates rotate 180 degrees and retract into the side plates, the inner side of the side plates forms a flat surface, facilitating the next step of clamping and sealing.

A kind of individualized cardiorespiratory function digital twin model based on exercise health management method.The method obtains the cardiorespiratory exercise test (CPET) data of user as reference, inputs into cardiorespiratory function digital twin model, generates the cardiorespiratory function limit and sudden illness risk prediction for user, achieves the purpose of individualized exercise health management.The technical scheme adopted by the present application firstly uses partial differential equation set to describe the oxygen metabolism chain of respiratory-circulation-function organ, then uses digital twin neural network to fit the metabolism chain, inputs individual characteristics and exercise load parameters, and outputs oxygen metabolism results and internal function characteristic parameters of human body;Further, the output of digital twin network is input into the prediction network to realize the cardiovascular disease risk prediction.The personalized cardiorespiratory function digital twin model generated by the present application provides a powerful tool for more scientific and efficient physical training, early intervention and precise prevention of diseases.

There is a ventilator for mechanical ventilation during a breathing cycle including an inhalation cycle and an exhalation cycle. The ventilator is configurable to be in fluid communication with a supply of a first fluid. The ventilator includes an inhalation pathway and an exhalation pathway. A first fluid injector is in fluid communication with the supply of the first fluid for injecting the first fluid. The inhalation pathway receives the first fluid injected by the first fluid injector. A controller is operatively connected with the first fluid injector and programmed to selectively actuate the first fluid injector to inject the first fluid, which is received within the inhalation pathway such that an inhalation pressure in the inhalation pathway is within a predetermined range during the inhalation cycle.

This application relates to flow path sensing for flow therapy devices. Systems and methods for respiratory therapy in a respiratory system can adjust the flow of respiratory gases based on a detected patient respiratory cycle. The respiratory system can include a non-sealing patient interface. The respiratory system can be configured to deliver high flow therapy. The patient respiratory cycle can be determined using one or more measured parameters such as flow rate, blower motor speed, and / or system pressure. A flow source can be adjusted to have a phase that matches the phase of the patient respiratory cycle such that the flow increases in response to patient inhalation and decreases in response to patient exhalation.

Methods and apparatus involve generation of an anti-infection therapy. The method / apparatus may include a controller controlling setting of a respiratory flow therapy device for the therapy. The controller may compute a target flow rate profile for a patient using a margin function, such that the target flow rate profile, according to the margin function, exceeds a minimum inspiratory flow rate profile of the patient's inspiration. The controller may control setting the respiratory flow therapy device to generate a flow of air to a patient interface according to the target flow rate profile, where the generation may be in synchrony with a sensed parameter that is indicative of a breathing cycle of the patient.