845results about "Electrocardiography" patented technology

Systems and methods for controlling an implantable pump are provided. For example, the exemplary controller for controlling the implantable pump may only rely on the actuator's current measurement. The controller is robust to pressure and flow changes inside the pump head, and allows fast change of pump's operation point. For example, the controller includes, a two stage, nonlinear position observer module based on a reduced order model of the electromagnetic actuator. The controller includes an algorithm that estimates the position of the moving component of the implantable pump based on the actuator's current measurement and adjusts operation of the pump accordingly. Alternatively, the controller may rely on position measurements and / or velocity estimations.

Methods and apparatuses are described for modulating multiple integrated neural networks to alter composite sensory processes, such as audition or hearing. These methods and apparatuses may be used for therapeutic and non-therapeutic uses, including enhancing entertainment and communication, by providing a cranio-cervical tuning apparatus worn in or around the outer ear or auricle. These methods and apparatuses may include functional neurosensory bias for neurosensory scrambling neuromodulation to influence composite or multi-modal sensory processes.

The invention relates to an acousto-optic coupled intelligent sleep aiding method and system. The method comprises the following steps: constructing an initial sound scene environment and controlling sound and light output to smoothly transit to a reference value; collecting a user respiration signal to obtain a respiration rhythm; adjusting the sound and light output rhythm to be synchronous with the respiratory rhythm; coupling the acousto-optic output with the respiratory rhythm on the basis of keeping synchronization; executing acousto-optic guidance according to the selected sleep aiding mode and the acousto-optic coupling mode, and guiding the respiratory rhythm to a target frequency by adjusting an acousto-optic output change frequency; and when the user is in the sleep state, controlling the sound-light output to smoothly transit to a closed state. By adopting the method, dynamic synchronization and self-adaptive guidance of acousto-optic output and the breathing rhythm of the user can be realized, the problem of rhythm mismatch caused by fixed output rhythm of traditional sleep-aiding equipment is effectively solved, and the sleep-aiding effect is improved.

The invention relates to the technical field of drainage control, in particular to an intelligent cerebrospinal fluid drainage rate and pressure cooperative control system and method. The system comprises a drainage pipeline module, a positioning adjustment module, an intelligent pump control module, a monitoring sensing module, a cooperative control module and a man-machine interaction module, and can be used for establishing a cerebrospinal fluid drainage channel and being connected with a drainage bag; a laser positioning pen fixed on the infusion rod emits a laser beam which is horizontal to a preset drainage plane and adjusts the hanging height; an infusion pump and a pump body controller drive cerebrospinal fluid to flow according to set parameters and generate flow velocity, flow and drainage time control signals, meanwhile, real-time intracranial pressure data, real-time flow and flow velocity data and physical sign data are collected, and a drainage height adjusting instruction or a pump control parameter adjusting instruction is generated; cooperative control over the drainage rate and the intracranial pressure is achieved, and system operation parameters, patient monitoring data and the drainage state are displayed. The drainage device can accurately control the drainage amount of cerebrospinal fluid.

A system, apparatus and method directed to detecting malposition of a medical device within a vessel of a patient, such as an Azygos vein. The medical device can include a multi-core optical fiber including a plurality of core fibers, where each of the plurality of core fibers includes a plurality of sensors is configured to reflect a light signal based on received incident light, and change a characteristic of the reflected light signal for use in determining a physical state of the multi-core optical fiber. The system can include a console having non-transitory computer-readable medium storing logic that, when executed, causes operations of providing a broadband incident light signal to the multi-core optical fiber, receiving reflected light signals, processing the reflected light signals, and determining whether the medical device has entered the Azygos vein of the patient based on the reflected light signals.

A system, apparatus and method directed to placing a medical device into a body of a patient, including performing operations of providing a broadband incident light signal to a plurality of core fibers of a multi-core optical fiber, receiving reflected light signals of different wavelengths, and processing the reflected light signals associated with the plurality of core fibers to determine (i) a physical state of the multi-core optical fiber relating to the medical device including the multi-core optical fiber, and (ii) an orientation of the multi-core optical fiber relative to a reference frame of the body. Additional operations include generating a display illustrating the physical state of the multi-core optical fiber based at least on the orientation determined during processing of the reflected light. Typically, the display is a two-dimensional representation of the multi-core optical fiber in accordance with the determined orientation.

The invention discloses an intelligent control method for an analgesia pump based on deep learning. The intelligent control method comprises the following steps: S1, acquiring multi-modal original signals of a postoperative patient and synchronously normalizing the multi-modal original signals; s2, removing artifacts and noise in the synchronous data, and performing interpolation compensation on missing data; s3, carrying out modal reliability weight distribution on the sensing sequence based on a Hemma optimization algorithm; s4, inputting the node set into a PainNet relation statistical network to generate a dynamic graph topological structure; s5, predicting the pain score of the patient in the future, and generating a low-dose high-frequency micro-pulse administration instruction; s6, according to the circadian rhythm of the patient, dynamically adjusting the edge weight and the administration interval of the PainNet network; and S7, when the pain score fluctuation exceeds the limit, triggering an emergency mode, quickly converging to the most conservative parameter combination, and outputting a safety locking instruction. According to the invention, the control accuracy and safety of postoperative analgesia are improved.

One aspect described herein is a data communication apparatus. The apparatus may comprise: electronic components operable to gather and output different types of physiological measurements associated with a user's chest, the electronic components comprising a multimodal sensor array, a transceiver, and a power source; and a housing that contains the electronic components and comprises an attachment element operable to maintain an alignment of the multimodal sensor array over the user's chest, wherein, when the housing is maintained over the user's chest, the multimodal sensor array is operable with the power source to measure the different types of physiological measurements, and the transceiver is operable with the power source and the sensor array to output the different types of physiological measurements to an external device. Related apparatus, devices, methods, and systems also are described.

A method is provided that includes inserting an inflow cannula of a left ventricular assist device (LVAD) of a LVAD system into a left chamber of a heart of a patient transeptally via a right atrium and a superior vena cava (SVC). An outflow cannula of the LVAD is coupled to a left subclavian artery or a left axillary artery. Other embodiments are also described.

The invention discloses an intelligent control method and system for limb pressurization equipment, and relates to the technical field of intelligent control. The current working state of the limb pressurization equipment is determined according to multiple pieces of working data of the limb pressurization equipment; the training report of the target limb is determined according to the current working state of the limb pressurization equipment, the multiple training pressure items and the overall form of the target limb, and the accuracy of the training report of the target limb is improved. Determining a plurality of training features according to the detection of the training report, and determining a pressure curve of the target limb according to the plurality of training features, the pressure condition of the target limb and the age of the user; determining an intelligent control event of the limb pressurization equipment based on the pressure curve of the target limb and the current working state of the limb pressurization equipment, and determining a dynamic early warning system of the limb pressurization equipment according to the intelligent control event, the abnormal signal of the limb pressurization equipment and the current body state of the user, and the accuracy of the dynamic early warning system of the limb pressurization equipment is improved.

The invention relates to a personalized sleep-aiding regulation and control method and system fusing multi-band characteristics and closed-loop feedback, and relates to the technical field of sleep regulation and control. According to the method, a cross-band coupling matrix is constructed, a nerve-physiological synergy index is calculated, environment-brain state interaction potential energy is calculated based on different band powers and environment sound pressure levels, and the nerve-physiological synergy index and the environment-brain state interaction potential energy are combined into a coupling state vector; solving the coupling state vector to judge the stability of the sleep state; on the basis, personalized sleep induction dynamic attractor intensity is calculated, and different sleep regulation and control strategies are generated according to the steady state / unsteady state and the corresponding attractor intensity. According to the invention, the unique sleep dynamics of the user can be understood and self-adaptively regulated.

The invention discloses an infusion state and vital sign intelligent monitoring method based on multi-modal fusion, and relates to the technical field of sign monitoring, and the method comprises the following steps: respectively collecting infusion dripping speed, pipeline liquid state, infusion pressure and breathing and heart rate signals of a patient; filtering the original signal of each sensor; key features are extracted from the processed signals, wherein the key features comprise parameters including the average dripping speed, the liquid existence proportion, the pressure change rate, the respiratory rate and the heart rate; carrying out normalization and confidence weighted fusion on the extracted infusion and vital sign characteristics, calculating an infusion state index and a vital sign index, and further obtaining a combined abnormal index; performing three-level anomaly judgment according to the fused index; monitoring data and alarm information are uploaded to a hospital information system in real time. By introducing a judgment algorithm based on multi-modal data fusion and confidence coefficient weighting, monitoring and graded alarming of the infusion state and the vital signs of the patient can be achieved.

A method for inducing a sensation of motion in a subject, comprising defining a vibrational stimulation pattern for a subject; generating a set of electrical signals corresponding to the vibrational stimulation pattern; and transducing the set of electrical signals into a vibrations corresponding to the set of electrical signals with a plurality of electromechanical transducers, wherein the vibrations are adapted to induce the sensation of motion in the subject.

Systems and techniques for monitoring, predicting and / or alerting for short-term oxygen support needs of patients are presented. A system can include a data collection component that receives multimodal patient data for a patient having a respiratory condition in association with monitoring and treating the respiratory condition in real-time, the multimodal patient data comprising at least physiological data regarding physiological parameters tracked for the patient over a period of time, and current oxygen support data regarding a current oxygen support mechanism of the patient. The system can further include an oxygen support forecasting component that processes the multimodal patient data using an oxygen support forecasting model to generate an output forecast that indicates whether a change to the current oxygen support mechanism is recommended for the patient within a defined upcoming timeframe.

Methods and systems are disclosed for creating and using a neural network model to estimate a cardiac parameter of a patient, and using the estimated parameter in providing blood pump support to improve patient cardiac performance and heart health. Particular adaptations include adjusting blood pump parameters and determining whether and how to increase or decrease support, or wean the patient from the blood pump altogether. The model is created based on neural network processing of data from a first patient set and includes measured hemodynamic and pump parameters compared to a cardiac parameter measured in situ, for example the left ventricular volume measured by millar (in animals) or inca (in human) catheter. After development of a model based on the first set of patients, the model is applied to a patient in a second set to estimate the cardiac parameter without use of an additional catheter or direct measurement.

The invention discloses a high-frequency full-chest oscillation sputum excretion method and system based on clinical data self-adaptive regulation and control, and the method comprises the steps: building an individualized propagation model of thorax and lung tissues through collecting individualized clinical data of a patient and chest multipoint acoustic and mechanical short-range response; the current body position of a patient is input into the model, a chest drainage path is obtained, oscillation control parameters are generated under the constraint of the path, and the oscillation control parameters are used for driving equipment to synthesize pressure traveling waves which are directionally propagated in multiple areas of the chest wall. In the execution process, safety gating control is conducted in combination with electrocardio and breathing phases, meanwhile, aerosol echoes and high-frequency impedance disturbance are collected to serve as feedback signals, and feedback data are formed after the feedback signals are aligned with an execution time sequence and used for dynamically updating the individualized propagation model and oscillation control parameters. According to the invention, accurate regulation and control can be carried out according to individual differences and real-time physiological statuses of different patients, the sputum drainage effect is effectively enhanced, the safety and comfort of treatment are improved, and the clinical application value is high.

The invention relates to an oxygen supply device and an intelligent oxygen supply amount adjusting method, belongs to the technical field of medical equipment, and solves the problems of low resource utilization rate and poor individual comfort caused by extensive oxygen supply in the prior art. The oxygen supply device comprises a vibration sensor used for collecting weak vibration signals of a human body; the signal processing platform is used for extracting a respiration signal, a heart impact signal and related characteristics of the respiration signal and the heart impact signal in the human body weak vibration signals and calculating the blood oxygen saturation degree; regulating and controlling the oxygen supply amount and generating a corresponding regulation and control command by monitoring the change of the oxyhemoglobin saturation and the breathing signal; and the oxygen supply output device is used for adjusting the state of a valve to carry out oxygen supply output according to the regulation and control command of the signal processing platform. Through undisturbed non-intrusive real-time monitoring of vital signs, real-time intelligent adjustment of oxygen supply is achieved, the comfort of oxygen supply is improved, and energy consumption and resource waste are reduced.

A method includes causing, via an application executing on a user device, the user device to capture an image of a user. The method also includes receiving, by a control system, the image of the user. The method also includes analyzing, by the control system based on a machine learning algorithm, the image of the user. The method also includes determining, by the control system based on the analyzing the image of the user, the sleep score for the user.

The invention relates to the technical field of infusion nursing, and discloses an intelligent monitoring method and system for nursing infusion in an operating room, and the method comprises the steps: collecting the pressure intensity, flow velocity and liquid level height of an infusion pipeline, and obtaining physiological parameters; in a non-transfusion state, collecting N frames of drip chamber images to establish a coordinate system and a background template; m frames of images are obtained in the infusion process, a binary foreground difference image is constructed, a connected domain is extracted, barycentric coordinates are calculated, and whether the images are the same liquid drop track or not is judged through the barycentric distance; counting the number of liquid drops and calculating the flow velocity by combining the drop ratio; constructing infusion indexes including a time sequence consistency score and a pressure diagnosis factor; risk vectors are constructed through patient parameters and infusion indexes, and normalization processing is carried out to generate dynamic risk mapping; and designing a risk scoring algorithm, setting grades according to risk values, and taking different treatment measures.

A self-regulating oxygen delivery system (100) for COPD, comprising: an oxygen source designed to provide medical oxygen; a sensor module configured to record physiological parameters such as oxygen saturation (SpO2), respiratory rate and pulse rate; a microcontroller-based control unit that is functionally connected to the sensor module and the oxygen source; and an intelligent flow control mechanism controlled by the microcontroller, the system automatically adjusts the oxygen flow in real time based on the recorded physiological parameters to maintain optimal oxygen saturation levels.

An anesthetic equipment storage and waste air management module configured to housing electronic and electromechanical surgical equipment including a system to measure and record administration of one or more IV medications or fluids for IV administration. The module can include a housing having a lower section and a tower-like upper section, wherein the lower section is configured to house unrelated waste heat-producing electronic and electromechanical surgical equipment. The module can also include a cowling that substantially confines waste heat generated by the unrelated waste heat-producing electronic and electromechanical surgical equipment, and can include a system for measuring and recording the administration of the one or more IV medications and fluids.

The invention provides an intelligent drug delivery method and system for pre-pump injection of m-hydroxylamine. The method comprises the following steps: determining an initial pumping rate, a target blood pressure range and a heart rate alarm threshold value of m-hydroxylamine according to initial information of a target patient; pre-pump injection of m-hydroxylamine is carried out according to the initial pump injection rate at a first preset time before lumbar anesthesia puncture operation; after the lumbar anesthesia puncture operation is completed, the current systolic pressure and the current heart rate of the target patient are collected based on the preset frequency; according to the current systolic pressure, the current heart rate, the target blood pressure range and the heart rate alarm threshold value, the initial pumping rate of m-hydroxylamine is adjusted; and carrying out pump injection of m-hydroxylamine based on the adjusted pump injection rate. By means of the method, pre-pumping injection is started before lumbar anesthesia puncture operation, occurrence of hypotension is preempted from the time dimension, the initial pumping injection rate is set based on information of a patient, the pumping injection rate is intelligently adjusted according to real-time feedback of the initial pumping injection rate, and therefore the occurrence rate of hypotension after cesarean section lumbar anesthesia is reduced.

To provide an improved catheter for performing RF ablation in small and difficult-to-reach ablation sites.SOLUTION: A catheter 22 includes an ablation electrode and an irrigation channel. The ablation electrode is configured to ablate tissue of a patient organ and is fitted on an insertion tube for insertion into the patient organ. The irrigation channel includes: (i) a lumen which is formed along an axis of the insertion tube, and is configured to flow irrigation fluid to the ablation electrode, and (ii) one or more irrigation holes, which are formed in the ablation electrode, and are configured to apply the irrigation fluid to the organ. The irrigation channel is configured to simultaneously (i) receive a guidewire for guiding the catheter and (ii) flow the irrigation fluid.SELECTED DRAWING: Figure 1

The present application relates to the technical field of sleep promotion, in particular to a sleep auxiliary device for relieving arthralgia, comprising a binding part worn on the joint position of a patient, the surface of the binding part is provided with a plurality of multi-modal stimulation mechanisms for mechanically stimulating the joint acupoints; the auxiliary device further comprises a power source, a gyroscope, a surface electromyography sensor and a heart rate sensor; the power source provides stimulation power for the plurality of multi-modal stimulation mechanisms; the multi-modal stimulation mechanism comprises a shell with an open bottom, a pressing device arranged in the shell and a bionic massage device; the pressing device is used for pressing the joint acupoints; the bionic massage device is in transmission connection with the pressing device and is used for driving the pressing surface of the pressing device to swing. The device can automatically switch between the two modes of soft pressing and active pressing and rubbing according to the sleep and wake state information of the patient, relieve arthralgia, significantly reduce the interference to the sleep process and effectively improve the sleep continuity and quality of the patient.

A sleep care device is disclosed. The sleep care device is mounted on the ear of a user, is not easily separated from the user's body while the user is in a sleep state, and can reliably measure brain wave signals. The sleep care device according to an example embodiment of the present invention includes a housing, an ear hook, and an ear tip. The ear hook is connected to the housing to form a closed loop, is placed between the user's head and the auricle, and includes an electrode having electrical conductivity. The ear tip is connected to the housing, is placed at the entrance to the external auditory canal, and has electrical conductivity. In addition, the ear hook and the ear tip are made of a material having flexibility and elasticity, and measure the user's brain waves.

Systems and methods for nitric oxide generation are provided. In an embodiment, an NO generation system can include a controller and disposable cartridge that can provide nitric oxide to two different treatments simultaneously. The disposable cartridge has multiple purposes including preparing incoming gases for exposure to the NO generation process, scrubbing exhaust gases for unwanted materials, characterizing the patient inspiratory flow, and removing moisture from sample gases collected. Plasma generation can be done within the cartridge or within the controller. The system has the capability of calibrating NO and NO2 gas analysis sensors without the use of a calibration gas.

The device (1) for pulmonary ventilation, comprises: a box- shaped body (2), a circuit (3) accommodated inside the box- shaped body (2) and comprising at least: one inlet port (4) for the air, one inlet mouth (5) for the oxygen and one outlet port (6) for a mixture of air and oxygen, a device to generate a positive pressure (7); wherein the circuit (3) comprises a rigid monolithic body (8) comprising at least one main channel (9), which defines the inlet port (4) for the air and the outlet port (6) for a mixture, and at least one secondary channel (10), which defines the inlet mouth (5) for the oxygen and which communicates with the main channel (9), the device to generate a positive pressure (7) being connected in a fluid- operated manner to the rigid monolithic body (8).

An eyeshade for a respiratory therapy system is disclosed. The eyeshade includes an eyeshade structure arranged to engage with a patient substantially around a perimeter of an eye of the patient in use. When the positioning and stabilizing structure applies a force to the eye-obscuring structure, the eye-obscuring structure is arranged in opposed relation to the patient's face. The eyeshade is configured to interact with a respiratory therapy system to assist in respiratory therapy.

An air adapter tube for diagnosis and / or treatment of a respiratory disorder includes a tubular body configured to transport pressurized treatment air between a proximal end of the tubular body and a distal end of the tubular body, the proximal end being configured to connect to a patient interface, and the distal end being configured for connection to an air delivery tube; and a sensor being configured to generate a signal based on air passing at the proximal end for diagnosis and / or treatment of a respiratory disorder.