38 results about "Autonomous breathing" patented technology

The application provides a decision-making method for the whole process of mechanical ventilation weaning, characterized by comprising the following steps: acquiring various index data of a patient at a first frequency to construct a patient index database; identifying an offline window period through key index data in the offline window period in the patient index database and AI captured dynamic behavior signals; in the offline window period, starting and performing a spontaneous breathing test, acquiring key index data of the offline window at a second frequency, generating a spontaneous breathing test tolerance score, and pushing a suggestion to medical staff on whether to perform weaning based on the spontaneous breathing test tolerance score; after the medical staff wean, monitoring key outcome index data at a third frequency, evaluating the recovery of the patient to obtain an evaluation result, and judging whether to intervene according to the evaluation result. In the whole weaning process, different frequencies are used to acquire corresponding index data at different stages, ensuring accurate grasp of the patient's condition.

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.

This invention relates to a method comprising receiving a pressure signal from a pressure sensor (17) and / or a flow signal from a pressure sensor and a flow sensor (16), and receiving signals from one or more sensors (56, 58, 60, 62) measuring different physiological parameters from the pressure sensor (17) and the flow sensor (16). The method includes detecting the onset of spontaneous breathing in a patient based on the pressure signal and / or the flow signal, and synchronizing the provision of respiratory support to the patient with the onset of spontaneous breathing detected using the pressure signal and / or the flow signal. The method includes calibrating parameters and thresholds to be used for detecting the onset of spontaneous breathing based on these signals. The method includes, after calibration, switching to: detecting the onset of spontaneous breathing in the patient based on these signals, and synchronizing the provision of respiratory support to the patient with the onset of spontaneous breathing detected using these signals.

A computer-implemented method is provided to estimate a periodic feature, such as a period length or a period location, of a physiological rhythm, such as a cardiac rhythm or an autonomic respiratory rhythm. The computer-implemented method comprises receiving a signal representing the physiological rhythm, estimating a first set of periodic feature estimates based on the signal, generating a prior probability of the periodic feature based on at least a subset of the first set of periodic feature estimates, and estimating a second set of periodic feature estimates based on the first set and the prior probability. By using such a computer-implemented method, the accuracy of the signal is improved, in particular when the signal is obtained from an accelerometer arranged on the chest of a subject.

The invention provides a common entropy balance adaptive control method and system, and belongs to the technical field of control systems. The system comprises a multi-mode physiological sensing module, a control decision module, an execution module and a feedback module, the signal output end of the multi-mode physiological sensing module is connected with the signal input end of the control decision module, and the instruction output end of the control decision module is connected with the instruction input end of the execution module. The state feedback end of the execution module is connected with the signal input end of the feedback module. The multi-mode sensing layer collects respiratory related entropy change and energy signals, the control decision layer generates instructions through a feedforward pre-judgment and self-adaptive algorithm, the execution layer adjusts ventilation through a rotary proportional valve, and the feedback layer monitors and corrects parameters. The system realizes co-entropy balance of a respiratory system, reduces invalid entropy increase, promotes autonomous respiration, improves the offline success rate, and provides a new'assistance but not substitution 'normal form for respiratory support.

A system for measuring the mechanical impedance of a patient's respiratory system during spontaneous respiratory activity characterised in that it comprises a fan, a motor driving said fan; said motor and said fan are placed inside a cavity; said cavity is divided into two sub-cavities separated from each other so as to prevent the passage of air, one containing the motor and the other containing the fan and comprising an initial end and a terminal end, both of which have access to the outside.

The application discloses a method for obtaining an autogenous breathing effort curve under mechanical ventilation based on a breathing machine waveform, which can calculate resistance and compliance in a patient's respiratory system through airway pressure and flow rate waveforms of the breathing machine when the breathing machine ventilates the patient, and then calculate the autogenous breathing effort of the patient during each breath according to the resistance and compliance and the pressure and flow rate waveforms. For each different patient, the method can calculate the change of pressure and resistance with time and the inspiratory effort intensity curve of each breath. The content can help doctors better judge the condition of the patient, thereby better assisting clinical treatment.

The invention discloses a transmission device for assisting a small animal to autonomously breathe hyperpolarized gas, which is characterized in that a sealed breathing mask is used for replacing a trachea cannula, and stable pressure of atmospheric pressure at the breathing mask is used for replacing periodic pressure change under high-pressure forced ventilation at the cannula; the animal spontaneous respiration gas amount is used for replacing the manually set fixed gas amount, and the state of inhaled gas is controlled under spontaneous respiration to replace fully controlled mechanical ventilation in the respiration process; the invention further discloses a method for assisting the small animal in autonomously breathing the hyperpolarized gas, the device can supply the gas amount required by autonomously breathing to the experimental animal according to the self-breathing state of the experimental animal, and the gas amount inhaled by the experimental animal each time is determined by the self-breathing state, so that the experimental animal can autonomously breathe in a free state; lung expansion in an abnormal breathing state can be avoided, so that a more accurate ventilation function and qi-blood exchange function evaluation result is obtained.

The present application relates to the technical field of self-breathing anesthesia supplies, and particularly relates to a narcotic injection device for self-breathing anesthesia, which comprises an injector body and an injection needle part detachably installed at the lower end of the injector body, the injector body comprises a needle cylinder provided with a scale bar at the front end and a needle nozzle communicated at the lower end of the needle cylinder. In the present application, the original narcotic injector structure is upgraded and improved, a first extension part is arranged between the needle cylinder and the finger wing, a second extension part is added between the cross plug rod and the finger handle, and a needle adjusting mechanism is arranged between the needle and the needle plug. According to the actual anesthesia injection requirements, the puncture angle and the puncture depth of the needle can be conveniently adjusted, the abnormal problems such as the limited puncture angle of the needle, the insufficient puncture injection depth of the needle, the occlusion of the endoscope view and the dropping of the injector into the cavity are effectively reduced, and the convenience, stability and safety of the narcotic injection process are improved.

The utility model relates to the field of medical equipment, and discloses an atomizing device capable of being connected with an autonomous breathing machine for medicine inhalation, which comprises an atomizing cup, the top of the front side wall of the atomizing cup is communicated and connected with an atomizing nozzle, the top of the atomizing nozzle is rotatably connected with a top plate, the inside of the top plate is fixedly connected with a sealing ring, and the sealing ring is fixedly connected with the atomizing nozzle. The rear side wall of the top plate is fixedly connected with a pressing buckle plate. Through the arrangement of the atomizing cup, the atomizing nozzle, the conductive probe, the three-way pipe and the five-way pipe, the problems that the treatment time is prolonged, and the workload and operation complexity of medical staff are reduced for patients who have serious illness conditions and need quick-acting medicine can be solved; the hole in the front end of the right part of the five-way tube is connected with the rear end of the atomizing cup, so that the medicine mist can be directly adsorbed to the oral cavity, the throat, the trachea, the bronchus, the pulmonary alveolus and the like of a patient and is absorbed by the mucosa of the patient to achieve the aim of treatment.

The present application discloses a method and device for regulating respiratory function by targeting the cervical spinal cord. Specifically, the present application provides a novel method for regulating respiratory rhythm by alternating electrical stimulation and mechanical ventilation to induce diaphragm and / or intercostal muscle movement, thereby achieving recovery and reconstruction of spontaneous breathing in patients with impaired respiration.

1. The name of the design product: high flow respiratory humidification therapy instrument oxygen therapy target management graphical user interface. 2. The use of the design product: for patients with spontaneous breathing, treatment by providing a certain flow of warm and humidified respiratory gas. 3. The design points of the design product: the shape and the design and content of the graphical user interface. 4. The picture or photo that best indicates the design points: top view. 5. The use of the graphical user interface: for the operation and interaction of the high flow respiratory humidification therapy instrument oxygen therapy target support mode management. 6. The human-computer interaction mode of the graphical user interface: in the lock screen interface state shown in the top view, when the "one-key linkage" control is clicked, the graphical user interface changes state, and the interface jumps to the parameter adjustment interface shown in the interface change state diagram.

The invention provides a breathing machine control method and system. The method comprises the steps that firstly, a resistance change signal which is caused by the autonomous breathing airflow change of a patient and generated through the piezoresistive effect of a functional layer is obtained from an electrode layer of an intelligent piezoresistive airflow management module; performing digital filtering on the signal, extracting a preset frequency band signal, determining local strain according to resistance change and a strain calibration curve, calculating a strain change rate, identifying adjacent electrode nodes of which the resistance change exceeds a threshold value, and calculating an effective area; calculating driving energy according to the local strain, the strain change rate, the effective area and functional layer carbon quantum dot concentration distribution obtained from a pre-stored lookup table; and finally, generating a voltage pulse according to the driving energy, applying the voltage pulse to the target micro valve through the electrode layer, heating the functional layer, and triggering the bionic molecular ratchet mechanism to open the micro valve. According to the method, sensing and executing atomic-scale collaboration are achieved, signal transmission processing delay is eliminated, man-machine synchronism is improved, lung differentiation ventilation can be achieved, and the defects in the prior art are overcome.

The present application relates to the technical field of tracheal intubation, in particular to a tracheal intubation, which comprises a gas injection tube, a tracheal intubation body and a shell, a gas inlet pipe is connected between the gas injection tube and the shell, a gas outlet pipe is arranged between the tracheal intubation body and the shell, an installation column is arranged in the shell, a gas flow hole and a through hole are arranged in the installation column, the through hole is connected with the gas flow hole in a penetrating mode, the through hole is arranged above the gas flow hole, and a limiting plug is connected with the gas flow hole and the through hole in a sliding mode, wherein the limiting plug is sealed in the gas flow hole and the through hole to ensure accurate control of the gas. The two electromagnets are alternately powered on and powered off by using a switch and a PLC controller, so that the limiting block can be inserted into and separated from the limiting groove, the position of the limiting plug can be accurately adjusted, the patient can be trained to breathe independently, and the time for the nursing staff to adjust the airway gas inlet amount is greatly reduced.

The invention relates to the technical field of assisted respiration, in particular to an auxiliary mechanical ventilation device triggered by spontaneous respiration negative pressure, which comprises a stagnation-containing shell, a ventilation device, a ventilation device, a ventilation device and a ventilation device, and is characterized in that a connector is arranged at one end of the stagnation-containing shell, and the other end of the stagnation-containing shell is communicated with the outside; the measuring mechanism comprises a follow-up assembly and a plugging assembly, the plugging assembly can change the conduction state of the connector, and the plugging assembly is matched with the follow-up assembly and can make the follow-up assembly act when the patient breathes; the pump pressure assembly comprises a power structure and a transmission structure, a plurality of sets of deflection pieces arranged in an inclined mode are installed on the power structure in a circumferential rotation mode, and when the follow-up assembly acts, the transmission structure can drive the deflection pieces to deflect so as to change the gas flowing direction; and the balance weight part is provided with a second locking part coaxial with the balance weight part, the second locking part is matched with the first locking part connected with the transmission assembly, and when the patient blows air, the deflection piece can rotate along with the balance weight part so that air in the containing shell can be emptied.

The present application relates to a kind of medical breathing machine bi-level pressure conversion control algorithm, comprising the following steps: the flow value of breathing machine outlet end is obtained by the differential pressure of breathing machine outlet end, and then the moment of patient's spontaneous breathing is obtained;Exhalation trigger moment starts, when the difference between the current mask end pressure collected and the set EPAP pressure value is greater than the set error, then the next step is executed;Current mask pressure is greater than the set EPAP pressure value, determine the value of brake interval variable i, execute PWM pulse width modulation type brake mode to make fan run;Enter to exhalation pressure stable stage, that is, closed loop control fan speed is used.The difference between actual mask pressure and exhalation pressure set value and exhalation pressure set value are combined to judge the value of PWM pulse width modulation type brake brake interval variable, so that the pressure can quickly and stably drop when the pressure is converted from inspiration phase to expiration phase.

Mobile underwater work and protection station (1) for persons, in particular for divers (100), which allows temporary stays and the performance of work underwater, comprising at least one accommodation space (10, 20, 30) designed as a double-walled, structurally reinforced housing, characterized in that the accommodation space (10, 20, 30) has a continuous supply of breathing air and fresh air, wherein the breathing air and fresh air supply is provided via a detachable fluid connection (5) between the accommodation space (10, 20, 30) and a surface station (200), a ship, a building or a surface platform (201) and / or the breathing air and fresh air supply is provided via an autonomous breathing air supply independent of the fluid connection (5).

The utility model discloses a suite device for oxygen uptake and atomization under autonomous respiration, which comprises a shell, one end of the shell is connected with a tracheal catheter, the convenient requirement of a patient can be met through plug-in connection and quick connection and disassembly, the shell is provided with a lacing, the lacing can be used for fixing the lacing around the neck, and the lacing can be used for fixing the tracheal catheter. The other end of the shell is communicated with an atomization pipeline, a partition plate is further arranged in the shell, smooth breathing can be guaranteed, meanwhile, the oxygen inhalation and atomization utilization rate is increased, in addition, an expired air collecting pipe can be arranged, and the oxygen inhalation atomization device is quite suitable for a patient with a trachea cannula or a tracheotomy cannula in place in the autonomous breathing state. And the device has a relatively high application prospect in the aspects of oxygen uptake, atomization treatment and gas monitoring.

The application relates to the technical field of anesthesia monitoring, and discloses a data processing method for anesthesia respiratory control, which comprises the following steps: obtaining respiratory data and individual data of a target patient, establishing a respiratory database, forming prediction data according to the respiratory database and the individual data of the target patient, forming judgment data according to the prediction data and the respiratory frequency of the target patient, forming adjustment data according to the judgment data, forming analysis data according to the respiratory data, and forming comparison conclusions according to the analysis data. The data processing method for anesthesia respiratory control can predict whether the patient will change from mechanical ventilation to autonomous respiration due to insufficient anesthesia depth during the operation process, adjust the collection frequency of the respiratory detection equipment on the patient's respiration during the operation process, judge whether the patient changes from mechanical ventilation to autonomous respiration, timely adjust the anesthesia depth of the patient, and actively judge whether the patient can leave the respiratory equipment after anesthesia recovery.

The application discloses a disposable tracheal incision plugging device, which comprises a tube body, the tube body has a tube body channel, the tube body channel comprises a first end and a second end, the tube body comprises a second section located in the trachea and parallel to the trachea and a first section forming an obtuse angle or a right angle with the second section, the first end is located at the first section and outside the trachea, the second end is located at the second section, and an opening in communication with the tube body channel is formed in the first section; a one-way valve is arranged at the first end. The adjusting mechanism comprises a baffle capable of sliding along the first section, the baffle comprises a plurality of training areas distributed along the sliding direction, a through hole is formed in each training area to form a communication part, and the overlapping area of the communication part of different training areas and the opening gradually changes along the moving direction of the baffle. The device can gradually perform independent breathing training, and during the training process, the air bag can be adjusted according to exhalation and inhalation, and the discomfort caused to the trachea during the training is reduced.

The present application relates to the technical field of percutaneous puncture, and provides a percutaneous puncture method, comprising the following steps: performing rough puncture on a to-be-punctured object, and puncturing a puncture needle into a preset range of a puncture target position; acquiring puncture-in-process image data of the to-be-punctured object, and planning a puncture path for the puncture needle to continue performing based on puncture needle image position information and puncture target image position information on the puncture-in-process image data; judging a current position of the puncture needle at a preset time interval, and when the current position of the puncture needle coincides with the puncture needle in the puncture-in-process image data, puncturing the puncture needle to the puncture target position according to the puncture path. The problem that in minimally invasive surgery, due to the factors of the patient's autonomous breathing and heartbeat, the position of a surgical lesion is extremely likely to change and thus is difficult to track is solved.

This invention is a device to be used with a system for supplying anaesthetic or respiratory gases into the airway of a human or an animal. This device is a supraglottic airway device, which includes a shaft with three tubes one for ventilation purpose and rest two for dynamic cuff inflation and other for suctioning purpose. The dynamic cuff is inflated by the gases supplied directly from the anaesthesia or ventilator circuit through a specialised adaptor via dynalumen. The “cuff inflation lumen” (“DynaLumen”) will also be having a locking mechanism to enable its use like a conventional LMA; i.e., the cuff can be left continuously inflated both during positive pressure ventilation as well as less during expiratory phase and during spontaneous respiration.

The application discloses an adapter for a nasal oxygen tube, and relates to the technical field of medical devices.The adapter comprises a cross pipe body, which comprises a first channel arranged in a first direction, a second channel, a third channel arranged in a second direction and a fourth channel; the free end of the first channel is in a barrel-shaped structure, and is provided with a first channel cover plate; the center of the first channel cover plate is provided with a first through hole; the first channel cover plate is provided with a first valve piece; the center of the first valve piece is provided with a first valve piece connecting rod; the free end of the first valve piece connecting rod is provided with a first connecting rod blocking boss; the free end of the first channel is provided with a threaded cap in a barrel-shaped structure; and the top surface of the threaded cap is symmetrically provided with a plurality of threaded cap through holes.The adapter is provided with a rotary joint and a one-way valve piece; in use, the adapter can rotate freely by 360 degrees under the premise of realizing the independent breathing of a patient, avoids the folding of a catheter, and effectively meets actual use requirements.

Methods and apparatus for treating a respiratory disorder, m one aspect, include an apparatus that delivers backup breaths at a sustained timed backup rate that is a function of the patient's spontaneous respiratory rate. Other aspects include apparatus that delivers backup breaths at a rate that gradually increases from a spontaneous backup rate to a sustained timed backup rate or, alternatively, apparatus that oscillates a treatment pressure in antiphase with the patient's spontaneous respiratory efforts when a measure indicative of ventilation is greater than a threshold. Other aspects include apparatus configured to treat Cheyne-Stokes respiration by computing the treatment pressure so as to bring a measure indicative of ventilation of the patient towards a target ventilation that is dependent on the measure indicative of ventilation or, alternatively, by periodically elevating the treatment pressure to a high level for a short time.

The utility model provides an autonomous respiration simulation device which comprises a fixing plate, a lung bag, a driving mechanism and a controller, the fixing plate is installed in a dummy body and located at the chest portion of the dummy body, and the fixing plate and the front side wall and the rear side wall of the dummy body are arranged at intervals. The lung bag is connected to the side, facing the front side wall, of the fixing plate. The driving mechanism comprises a fixing part and a telescopic part capable of reciprocating relative to the fixing part in the direction perpendicular to the fixing plate, the fixing part is connected to the side, facing the rear side wall, of the fixing plate, the telescopic part penetrates through the fixing plate and then is connected with the side wall, close to the front side wall, of the pulmonary sac, and the controller is electrically connected with the driving mechanism. The controller is used for controlling the time interval of reciprocating motion of the telescopic part driven by the fixed part and the motion stroke of the telescopic part relative to the fixed part, so that the pulmonary sac simulates the breathing frequency, depth and rhythm.

The utility model provides a clinical vital capacity training device for respiratory medicine, which relates to the technical field of medical instruments and comprises a machine box and a breathing seat, the breathing seat is arranged outside the machine box, and a nasal tube groove and a mouth tube are formed on the breathing seat. An external air pipe which is divided into an outlet end and an inlet end is arranged between the nose pipe groove and the machine box and between the end part of the mouth pipe and the machine box in a penetrating manner; the utility model has the beneficial effects that the expiration amount can be limited by limiting the volume of the tube cavity through the two inflating tubes which are oppositely arranged, and trainees are prompted to inhale and expire through the closing of the expiration pipeline and the opening and closing of the inspiration pipeline in corresponding states; circulation of inflation, resetting and inflation is carried out through constant air flow in the pipeline structure, training personnel can carry out expiration and inspiration training of equal-length failure, the problems that a traditional training device is poor in training effect and excessive in training due to the fact that a patient only depends on autonomous breathing judgment to carry out training are solved, and the training effect and safety of the device are improved.

The invention discloses an anesthetic injection amount dynamic adjustment method and device, computer equipment and a storage medium. The anesthetic injection amount dynamic adjustment method comprises the steps that reaction time of a target patient when anesthetic is not injected is obtained to obtain original reference reaction time; performing standardization processing on the original reference reaction time to obtain static input characteristics; collecting real-time reaction time, real-time plasma concentration and real-time effect chamber concentration of the target patient during anesthetic injection, and calculating dynamic input characteristics based on the real-time reaction time, the real-time plasma concentration and the real-time effect chamber concentration; inputting the static input features and the dynamic input features into a preset prediction model to enable the preset prediction model to output critical effect cell concentration; and adjusting the injection amount of the anesthetic according to the critical effect chamber concentration. The anesthetic injector not only can adapt to individual differences, but also can dynamically adjust the injection amount of anesthetic, and ensures that the consciousness and spontaneous respiration of a patient are kept while the patient is anesthetized.

The invention relates to the technical field of rat lung transplantation, and provides a rat intubation-free lung transplantation construction method, in an operation, a high-flow oxygen inhalation mask wrapping the mouth and the nose of a rat is used for conveying, heating and humidifying oxygen, effective oxygenation under autonomous respiration of the rat is maintained, tracheal intubation and mechanical ventilation support are not needed, and the operation is simple and convenient. The method specifically comprises the following steps: step 1, anesthesia and body position fixation; step 2, non-invasive ventilation support; step 3, performing surgical approach and exposure; step 4, fine dissociation of the pulmonary door structure; step 5, implanting a graft; and 6, closing the chest and resuscitating. Airway injury, postoperative infection and respirator-related lung injury caused by traditional tracheal intubation are thoroughly avoided, oxygen saturation in a rat operation is kept in a stable state through high-flow heating and humidifying oxygen inhalation and left-side clinostatism protection on the opposite lung, the death rate in the operation is greatly reduced, the pulmonary alveoli structure after lung transplantation is complete and free of inflammation infiltration, and the lung transplantation effect is good. The accuracy of research data is obviously improved, and the physiological status is better fit.

This utility model relates to the technical field of mine underground self-rescue devices, and discloses a novel mine compressed air and water supply resuscitation self-rescue device, including a box body. An isolation plate is provided inside the box body. The upper half of the isolation plate contains an air supply pipe, an air supply assembly, and a resuscitation assembly. The lower half of the isolation plate contains a water filter and a water supply pipe. The water supply pipe is connected to the water filter and has a drinking tap. An air inlet is located at the top of the air supply pipe. One side of the air supply pipe is connected to several air supply assemblies, and the lower part of the other side is connected to the resuscitation assembly. The air supply assembly includes a valve, a filter cylinder, and a self-priming filter mask. The resuscitation assembly includes an air distribution valve, a self-breathing valve, an automatic lung, a mask, and a suction device. An oxygen release device is connected to the upper part, and an external oxygen cylinder interface is added to the right side, which can directly release oxygen to function as an oxygen release device in the refuge chamber, increasing the oxygen content. It can also be used to directly inhale oxygen using the mask. This utility model has the following advantages: it provides life-sustaining air and water, enhances user comfort, is simple to operate, stable and reliable in operation, and has high safety performance.

The invention discloses an autonomous respiration assisting device with a locking assembly for nuclear magnetic resonance examination, and relates to the technical field of nuclear magnetic resonance examines.The autonomous respiration assisting device comprises a bed board, a right fixing seat is fixedly connected to the right end face of the bed board, a right rotating block is rotationally installed at the lower end of the right fixing seat, and a binding belt is fixedly connected to the upper end of the right rotating block; an adjustable elastic assembly for adjusting the elastic force of the binding belt is arranged in the right fixing seat, and binding assemblies for tightening and fixing the binding belt are arranged on the left end face of the bed board and the left side of the binding belt. The adjustable elastic component is arranged, so that when a patient is bound and fixed by the binding belt, the binding belt can have certain elasticity to stretch, the stretching elasticity can be manually adjusted by rotating a knob, and the binding belt is locked on the two sides of the bound patient through buckling and pressing of a locking block; the binding belt can be well attached to the two sides of the body of a patient and is suitable for different body positions.