90 results about "Autonomous breathing" patented technology

The utility model relates to the technical field of equipment testing, in particular to a passive following type respirator testing device and system.The device comprises a respiration simulation assembly provided with a passive following type respirator; the muscle simulation assembly is connected with the respiration simulation assembly and used for driving the respiration simulation assembly to move and simulating the expiration and inspiration exchange process of the human body based on the movement of the respiration simulation assembly; and the upper computer is communicated with the muscle simulation assembly and is used for inputting a test instruction to enable the muscle simulation assembly to move and outputting a test result of the passive following type respirator according to the test data of the passive following type respirator. Therefore, the problem that the test accuracy is low due to the fact that the simulated lung lacks a power source and the spontaneous respiration state of human muscles cannot be simulated in the prior art is solved.

The present invention discloses a human body respiratory heat metabolism detection device and method based on a piston-type cylinder. The detection device includes a flow rate detection module, a respiratory gas sampling module, a gas concentration analysis module, a control unit, and a computer. The flow rate detection module is used for bidirectional flow rate detection of respiratory gas; the respiratory gas sampling module is used for sampling collection, physical averaging, and constant flow discharge of respiratory gas; the gas concentration analysis module is used for detecting and calibrating the concentrations of oxygen and carbon dioxide in respiratory gas; the control unit is responsible for controlling and signal acquisition of various motors, valves, sensors, etc. in the device; the computer is responsible for data collection, calculation and analysis, human-computer interaction, and result display. The detection method is to first carry out concentration calibration, then implement metabolic tests on subjects based on a respiratory mask or a ventilator, and finally calculate metabolic indicators according to the measured gas concentration and flow rate parameters. The present invention can be applied to two metabolic detection scenarios of mechanical ventilation and spontaneous breathing, and the test is reliable and easy to be implemented in engineering.

A computer-implemented method for detecting onset of a spontaneous breath by a patient coupled to a ventilation system includes receiving, at a processor, an electromyography (EMG) signal from an EMG sensor disposed on the patient. The method also includes pre-conditioning, via the processor, the EMG signal to separate the EMG signal into a plurality of components having EMG information utilizing a set of bandpass filters. The method further includes individually analyzing, via the processor, each component of the plurality of components to detect an onset of the spontaneous breath by the patient. The method still further includes determining, via the processor, the onset of the spontaneous breath by the patient is occurring when at least two components of the plurality of components indicate the onset of the spontaneous breath by the patient.

The invention relates to the technical field of cardiology department medical devices, and discloses a cardiology department thoracic cavity monitoring first-aid device which comprises a shell, the shell is worn on the chest of a patient through a chest bandage, an external chest compression mechanism is arranged on the shell, and the external chest compression mechanism comprises a first air bag arranged at the bottom of the shell; the shell is connected with an electrode plate for monitoring the respiration and the heart rate of a patient; a rotating disc is rotationally arranged on the shell, an inflation assembly is arranged on the rotating disc, a first air vent is formed in the rotating disc, a second air vent and a communicating groove are formed in the shell, and the second air vent communicates with an inner cavity of the first air bag through the communicating groove. According to the thoracic cavity monitoring and first-aid device for the department of cardiology, through a simple wearing device, when breathing and cardiac arrest of a patient are monitored, first-aid measures of cardio-pulmonary resuscitation can be automatically carried out, autonomous circulation and autonomous breathing are promoted, vital signs of the patient are helped to be gradually recovered, and irreversible damage to the brain and the body of the patient is avoided.

The invention relates to a signal processing unit and a method which performs an estimation (Sig res,est ) for a respiratory signal. This respiratory signal is a measure of a patient's own spontaneous breathing and / or mechanical ventilation. A summed signal (Sig) is calculated from measurements taken in or on the patient's body. Sum ) generates a signal that includes the respiratory and a cardiogenic signal. By influencing the sum signal (Sigmoidal frequency), the influence of cardiac activity on the sum signal (Sigmoidal frequency) is determined. Sum ) is compensated, an intermediate signal (Sig) is used. com ) calculated. A reference attenuation signal section describes the average time course of the contribution of the cardiogenic signal to the intermediate signal (Sig). com For each detected heartbeat, an intermediate signal segment [SigA] is generated. com (x)] is generated. From this, a damped intermediate signal section [SigA] is created. com,d(x)] is generated, for which a fitted attenuation signal section [Mod(1)(x), ..., Mod(n)(x)] is applied to the intermediate signal section. The fitted attenuation signal section [Mod(1)(x), ..., Mod(n)(x)] is calculated from the reference attenuation signal section using at least one quality measure [Q(30), Q(31)].

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.

A process, a signal processing unit and to a ventilator automatically calculate a set point for a frequency, with which the ventilator performs ventilation strokes and thereby mechanically ventilates the patient. An alveolar or proximal minute volume is predefined. A lung time constant for the lungs of the patient is determined. The volume of a dead space in a fluid connection between the lungs and the ventilator is determined. A mandatory frequency set point (fset,mand) for the mandatory ventilation of the patient is calculated. An ideal frequency (fspon), with which the patient can achieve the minute volume by means of spontaneous breathing, is calculated. The ventilation frequency set point is calculated as a weighted average of the mandatory frequency set point (fset,mand) and of the ideal frequency (fspon). The averaging depends on a determined actual intensity of the spontaneous breathing of the patient.

The application provides a method and system for estimating autonomous inspiration effort intensity based on a respiratory system model under pressure control ventilation, which simulates airway pressure waveform data assuming no autonomous inspiration effort by combining airway pressure waveform data existing autonomous inspiration effort under pressure control ventilation with autonomous breathing lung ventilation model, obtains airway resistance and respiratory system compliance to obtain flow waveform according to respiratory mechanics motion equation by using original waveform data measured clinically, and then carries out error analysis with flow waveform existing autonomous inspiration effort measured clinically, finally estimates autonomous inspiration effort intensity by using linear regression curve fitting obtained from error index value of flow waveform data assuming no autonomous inspiration effort and flow waveform data existing autonomous inspiration effort obtained from a number of known gold standard esophageal pressure deviation patients, and realizes autonomous inspiration effort intensity estimation without esophageal pressure.

The invention relates to the technical field of medical instruments, in particular to a chest drainage device which comprises a drainage bottle, a drainage tube and a negative pressure mechanism, one end of the drainage tube is inserted into the drainage bottle, the other end of the drainage tube is inserted into the chest of a patient, and the negative pressure mechanism is communicated with an inner cavity of the drainage bottle. The negative pressure mechanism is driven by autonomous respiration of a patient to generate negative pressure suction force on the drainage bottle. According to the scheme, the physiological activity of the human body is converted into negative pressure power through ingenious mechanical conversion, negative pressure equipment, power supply and negative pressure generation through manual pressing of special personnel are not needed, the device can be widely applied to assisting in chest drainage in special environments such as emergency rescue and disasters lacking medical resources, and medical and human resource pressure is reduced.

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.

Embodiments disclosed herein relate to respiratory interfaces for use in treating various respiratory issues including, but not limited to, sleep disorder breathing (e.g. snoring, sleep apnea), and in other forms of assisted and unassisted respiration. Embodiments disclosed herein further relate to nasal prongs, flanges and valves for use with respiratory interfaces. Embodiments disclosed herein further relate to evaluating patient compliance with a respiratory interface and harvesting energy for the respiratory.

The invention relates to the technical field of anesthesia monitoring, and discloses an anesthesia breathing control method based on breathing monitoring, which comprises the following steps: acquiring breathing data and individual data of a target patient, establishing a breathing database, forming prediction data according to the breathing database and the individual data of the target patient, and determining the breathing rate of the target patient according to the prediction data and the breathing rate of the target patient. According to the anesthesia respiration control method based on respiration monitoring, whether mechanical ventilation of a patient is converted into autonomous respiration or not due to insufficient anesthesia depth in the operation process of the patient is predicted; adjusting the acquisition frequency of the respiration detection equipment on the respiration of the patient in the operation process, judging whether the patient is converted from mechanical ventilation to autonomous respiration or not, adjusting the anesthesia depth of the patient in time, and actively judging whether the patient can evacuate from the respiration equipment or not after the patient wakes up after anesthesia.

1. The name of this design product: High-flow respiratory humidification therapy device. 2. Purpose of the product with this design: It is used for treating patients with spontaneous breathing by providing a certain flow of heated and humidified respiratory gas. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

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 relates to the field of medical masks, in particular to a safety mask for autonomous respiration monitoring. A medicine supply pipe is mounted in the middle of a mask body, an exhalation valve is arranged below the medicine supply pipe, one end of the exhalation valve extends into the mask body and is connected with a guide cover, an air inlet pipe is arranged above the medicine supply pipe, and one end of the air inlet pipe is connected with the mask body; and the other end is communicated with the airbag. According to the breathing mask, the foam ball moving and displacing along with breathing of the patient is arranged in the exhalation valve of the mask body, when emergency situations such as breathing suppression of the patient occur, airflow at the foam ball is reduced, the motion amplitude of the foam ball is stopped or reduced, and at the moment, the infrared displacement detector recognizes the corresponding motion state of the foam ball; and the opening and closing plate in the air inlet pipe is excited to be opened so as to introduce high-concentration oxygen, so that the oxygen uptake requirement of a patient is ensured, bad conditions such as respiratory depression and suffocation can be effectively, timely and quickly responded, and the stability and the safety of the mask during use are effectively ensured.

The present invention discloses a direct-acting medical demand valve, which includes a valve body, a valve core assembly disposed within the valve body, an upper valve cover assembly coupled to the upper portion of the valve body, and a lower valve cover assembly coupled to the lower portion of the valve body. The valve core assembly includes a lever drive assembly and a pressure-regulating spring assembly. This solution utilizes a lever drive assembly and a pressure-regulating spring assembly disposed within the valve body to generate a slight pressure change at the valve outlet to sense the patient's needs for gas delivery and gas cut-off. The pressure-regulating spring assembly can also adjust the valve's opening force, allowing gas delivery according to the patient's needs. A spring button is disposed within the valve cover assembly to cooperate with the lever drive assembly. When the patient is not breathing spontaneously, the button can be forcibly pressed to deliver gas, thereby improving the patient's survival rate.

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 invention relates to the technical field of medical instruments, in particular to a ventilation method and system comprising an adjustable trigger window and a breathing machine. The method comprises the following steps: calculating expiration time according to the set breathing frequency and inspiration time of a user; counting autonomous respiration parameters of the user in a preset time window; calculating a first trigger window candidate value and a second trigger window candidate value based on the autonomous respiration parameter; limiting the first trigger window candidate value to enable the first trigger window candidate value to be not greater than a second trigger window candidate value; combining the first trigger window candidate value and the second trigger window candidate value to obtain a trigger window duration; setting an upper limit value of the time length of the triggering window, and limiting when the time length of the triggering window exceeds the upper limit value; in the trigger window, if a trigger event is detected, starting one-time support ventilation; if the trigger event is not detected when the trigger window is ended, starting one-time control ventilation; and out of the trigger window, autonomous respiration with unlimited times is allowed to be carried out.

A system for measuring the mechanical impedance of the respiratory system of a patient during spontaneous respiratory activity, characterized in that the system comprises a fan, a motor driving the fan; the motor and the fan are placed in the cavity; the cavity is divided into two sub-cavities separated from each other so as to prevent the passage of air, one sub-cavity containing the motor and the other sub-cavity containing the fan and including a start end and a tail end, both having a passage leading to the outside.

The invention discloses an air pipe assembly with a closed structure, and belongs to the technical field of medical instruments, the air pipe assembly comprises a pipe body, an air bag and an inflation assembly are arranged on the pipe body, a steel wire sleeve is arranged in the pipe body in a sleeved mode, the air pipe assembly further comprises a plug, a patch and a transmission part, the plug is installed on a connector of the pipe body, and the transmission part is arranged in the pipe body in a penetrating mode and connected with the plug and the air bag; and the patch is arranged close to the plug and is used for plugging a gap between the tube body and the throat or mouth of the patient. According to the trachea assembly with the closed structure, the inner cavity of the tube body can be blocked through the plug, so that when medical staff assess the autonomous respiration function of a patient, the tube body does not need to be blocked with the help of cotton swabs, adhesive tape and the like, and the leakproofness of the blocked tube body is guaranteed; meanwhile, the air bag can be collected through the plug and the transmission piece, the situation that the air bag is loosened at will to affect autonomous respiration of the patient is avoided, the patient can cough out sputum easily, and the accuracy of medical staff for evaluating whether the autonomous respiration function of the patient is good or not is improved.

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.

Disclosed are an electronic device and a control method therefor. The electronic device according to the present disclosure includes: a memory storing a feature tokenizer-graph attention network (FT-GAT) model for obtaining a prediction value of a spontaneous breathing success rate of a patient on the basis of patient information; and a processor connected to the memory and identifying the prediction value of the spontaneous breathing success rate of the patient by inputting at least one feature value of the patient to the FT-GAT model, wherein the FT-GAT model may include: a tokenizer module that converts a feature value corresponding to the patient information into an embedding value in a latent space; a multi-head graph attention module that updates a node corresponding to the feature value; and a multi-layer perceptron (MLP) module that outputs the prediction value of the spontaneous breathing success rate of the patient, corresponding to the embedding value, by applying the updated node.

The utility model discloses a split type atomizing, humidifying and oxygen inhalation connecting set for an artificial airway, which effectively achieves the purpose of conveniently carrying out atomizing treatment and oxygen humidification on a patient with the artificial airway, and comprises an atomizer, a first connecting tube, a second connecting tube and a connecting cover, the upper side of the atomizer is detachably connected with the connecting cover, and the lower side of the atomizer is detachably connected with the connecting cover. The lower side of the atomizer is detachably connected with the first connecting pipe, the rear portion of the first connecting pipe is provided with an oxygen supply pipe, the second connecting pipe is in a T shape, and the front side of the second connecting pipe is fixedly connected with a pull ring. The device is simple in structure and convenient to use, can be matched with a patient who establishes an artificial airway with autonomous respiration, achieves the purposes of continuous humidification, atomization treatment and oxygen humidification, reduces the maintenance cost of the device, reduces the occurrence of related complications of the artificial airway, increases the comfort level of the patient, and can be matched with oxygen pipelines of different models.

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 present invention discloses a double-tube respiratory therapy device, which relates to the field of medical technology and includes a downward pressing mechanism, which cooperates with a treatment mechanism; the downward pressing mechanism includes a bed slidably installed in a sliding pile, a return spring is provided in the sliding pile, and a rack 1 is provided on the bed, which cooperates with a drive assembly, and the drive assembly is connected to the treatment mechanism, and the treatment mechanism includes a reciprocating motion assembly; the present invention adopts a double-tube design to provide effective help for patients with difficulty in spontaneous breathing.

The invention discloses ventilation equipment and a ventilation regulation and control method, and the method comprises the steps: 1a, obtaining the monitoring pressure and / or the airway flow rate of the ventilation equipment in the mechanical ventilation process of a patient; step 2a, determining parameter values of respiration driving parameters according to the monitored pressure and / or the airway flow rate, and changing the respiration driving parameters to be used for representing the respiration effort of the patient; step 3a, performing statistical analysis on the parameter value of the respiration driving parameter to determine a first target value; step 4a, comparing the first target value with a preset first range; and step 5a, according to a comparison result, adjusting and / or reminding to adjust a parameter value of a ventilation support parameter, wherein the ventilation support parameter is used for reflecting a set pressure or flow condition of the ventilation equipment. According to the medical equipment, the ventilation equipment and the ventilation regulation and control method, lung injury or diaphragm fatigue caused by over-strong spontaneous respiration can be reduced, so that a better ventilation effect is achieved.

The invention discloses a respiratory gating training system, method and equipment based on visual guidance and a medium, and relates to the technical field of radiotherapy equipment, and the respiratory gating training system comprises a first camera collection unit which is used for collecting face information of a current patient so as to carry out identity verification on the current patient; the second camera acquisition unit is used for acquiring the body surface feature information change of the current patient during breathing after the identity verification is passed; the respiratory gating workstation is used for carrying out information conversion processing on the body surface feature change information to obtain respiratory feature information and selecting a corresponding respiratory training mode; the signal transmission unit is used for transmitting the breathing characteristic information to the visual display unit; the visual display unit is used for displaying the breathing feature information in real time, so that the current patient adjusts current breathing based on the breathing feature information and the breathing training mode, and the second camera collection unit is informed of collection of body surface feature information changes during breathing till the breathing feature information meets breathing training stopping conditions. The autonomous respiration training of the patient is realized.