3034results about "Flow control" patented technology

The invention provides a field intelligent injection pump automatic control method and system based on physiological parameter monitoring, and relates to the technical field of automatic control. The physiological parameter information is input into an intelligent decision module, a personalized drug administration scheme is generated based on a reinforcement learning algorithm in combination with a physiological function state report and a drug action mechanism knowledge base, and the personalized drug administration scheme comprises a drug ratio, an injection rate and an injection time sequence; the personalized administration scheme is sent to the intelligent injection module, and the injection step is executed; the energy management unit performs energy collection and storage through a flexible photovoltaic film and a phase change energy storage material, establishes a multi-objective optimization function based on drug storage conditions and environmental parameters, and performs intelligent distribution and adaptive adjustment on the power consumption of the injection pump system; the state of the injection pump pipeline is evaluated based on multi-mode sensing information, dynamic safety evaluation is conducted in combination with real-time physiological monitoring, and graded protection is triggered.

One embodiment of the present disclosure relates to drug injector monitoring method and device and provides drug injector monitoring method and device that monitor a battery state, a remaining drug amount, temperature, and pressure of a drug injector such that a fixed amount of drug may be stably injected.

A fluidics system includes a cassette having a saline subsystem, a contrast subsystem, and a vacuum subsystem. The fluidics system further includes a splitter and a first tubing set coupled to the cassette and splitter, the first tubing set having a single saline channel, a single contrast channel, and a single vacuum channel. The fluidics system further includes two or more hub assemblies, at least one of the two or more hub assemblies configured to have a third saline flow-path, a third contrast flow-path, and a third vacuum flow-path to provide saline, contrast and vacuum to the lumen of a catheter coupled to the at least one of the two or more hub assemblies. The fluidics system further includes a second tubing set having a plurality of tube groups, each tube group coupled to the splitter and to one of the two or more hub assemblies.

An apparatus includes a cannula assembly, a housing, a fluid reservoir, a flow control mechanism, and an actuator. The housing includes an inlet port removably coupled to the cannula assembly and defines an inner volume. The fluid reservoir is fluidically coupled to the housing and configured to receive and isolate a volume of bodily fluid from a patient. The flow control mechanism is at least partially disposed in the inner volume. The actuator is operably coupled to the flow control mechanism and is configured to move the flow control mechanism between a first configuration, in which bodily fluid can flow, via a fluid flow path defined by the flow control mechanism, from the cannula assembly, through the inlet port and into the fluid reservoir, to a second configuration, in which the fluid reservoir is fluidically isolated from the cannula assembly.

In some embodiments, a system can include a fluid delivery assembly and a motor drive assembly. The fluid delivery assembly is configured to be releasably mechanically and, optionally, electrically coupled to the motor drive assembly. When the fluid delivery assembly is releasably coupled to the motor drive assembly, the motor drive assembly can control delivery of fluid from the fluid delivery assembly (e.g., to a patient). For example, the motor drive assembly can be releasably coupled to the fluid delivery assembly to control delivery of fluid from the fluid delivery assembly to provide continuous (e.g., non-pulsatile) fluid flow from the fluid delivery assembly.

Embodiments relate to device, system and methods for personalised drug dosing via a device, the device comprising a first chamber comprising a drug reservoir unit; a second chamber comprising an electronic unit comprising a control component; a third chamber comprising a drug delivery unit and a flow control component controlled via the electronic unit; wherein the device is fully implanted in a subject during its intended operational modes, and wherein the device releases a body temperature stable drug formulation into the subject at a flow rate such that a variation in the flow rate is within ±15% by volume.

The invention discloses a peripheral vein puncture blood vessel pressure monitoring system for image enhancement examination based on multi-modal fusion, and relates to the technical field of medical image assistion.The peripheral vein puncture blood vessel pressure monitoring system comprises the steps that image data, sensor data and personalized data of a patient are collected; generating an image feature vector, a sensor feature vector and a personalized feature vector based on the preprocessed multi-modal data, carrying out feature interaction on a multi-modal feature line, carrying out representation fusion by combining Transform with contrast learning, and generating a fusion representation vector; the maximum tolerance pressure, the extravasation risk level and the recommended injection flow rate range of the target puncture point under the current injection flow rate are predicted and evaluated in the blood vessel pressure resistance prediction model, injection suggestions and injection alarms of the target puncture point are generated, and injection parameters are automatically adjusted. According to the method, the personalized safety pressure threshold values of patients with different blood vessel conditions are accurately evaluated, and the safety and accuracy of peripheral vein puncture are remarkably improved.

The invention relates to the technical field of medical monitoring, and discloses a novel infusion alarm and an infusion alarm system. The system comprises an infusion state monitoring module, an alarm decision module and an alarm execution module. A multi-source sensing unit of the infusion state monitoring module is distributed in a liquid level detection area, a drip chamber area and a patient contact area of an infusion tube assembly and collects optical refractive index, gravity change and real-time image data, and a data fusion unit performs heterogeneous signal fusion on the data to generate a multi-mode infusion state signal. A state analysis unit of the alarm decision module receives the signal and outputs a liquid level prediction signal and an infusion abnormal risk signal, and an alarm rule engine generates an alarm trigger threshold according to the signal. And a sound-light alarm unit of the alarm execution module responds to the threshold value to start a sound-light alarm sequence, a remote notification unit generates a graded alarm notification based on the abnormal risk signal, and a man-machine interaction interface outputs a comprehensive risk index.

A fluidics system includes a cassette having a saline subsystem, a contrast subsystem, and a vacuum subsystem. The fluidics system further includes a splitter and a first tubing set coupled to the cassette and splitter, the first tubing set having a single saline channel, a single contrast channel, and a single vacuum channel. The fluidics system further includes two or more hub assemblies, at least one of the two or more hub assemblies configured to have a third saline flow-path, a third contrast flow-path, and a third vacuum flow-path to provide saline, contrast and vacuum to the lumen of a catheter coupled to the at least one of the two or more hub assemblies. The fluidics system further includes a second tubing set having a plurality of tube groups, each tube group coupled to the splitter and to one of the two or more hub assemblies.

A grain unloading monitoring system for use in operations moving grain from a grain cart to a grain truck or container utilizing at least one sensor configured to monitor a grain level within a grain container, a processor in electronic communication with the at least one sensor, and a command module in electronic communication with the processor. The command module is configured to command one or more components on a grain cart or grain container to distribute unloaded grain and prevent overfilling of the grain container based on the monitored grain level and grain fill rate.

A fluid injector system includes at least one injector for pressurizing and delivering at least one fluid from at least one fluid reservoir, at least one fluid path section providing fluid communication between a bulk fluid reservoir and a syringe connected to the at least one injector, and at least one sensor arranged along the at least one fluid path section. The at least one sensor includes an emitter configured to emit light through the at least one fluid path section, and a detector configured to receive the light emitted through the at least one fluid path section and generate an electrical signal based on at least one property of the received light. The fluid injector system may further include at least one processor programmed or configured to determine, based on the electrical signal generated by the detector, at least one of an identity of the at least one fluid present in the fluid path section, a concentration of the at least one fluid in the fluid path section, and at least one property of the fluid path section.

A medication container encoding, verification and identification method is provided that includes receiving data characterizing a medication, generating an identifier encapsulating the data and applying an identifier to a medication container such that it is automatically readable by a medication device. Related apparatus, systems, methods and articles are also described.

The invention relates to the technical field of infusion monitoring, in particular to a patient heart rate and infusion monitoring system based on wearable equipment, which comprises a physiological parameter acquisition module, a data trend analysis module, a risk judgment module, an abnormity early warning module and an equipment management module. According to the method, based on the blood oxygen change rate, the blood oxygen decrease trend is analyzed, the heart rate fluctuation condition is combined, dynamic evaluation of physiological parameters is achieved, the blood oxygen decrease rate, the heart rate mutation index and the mutation amplitude are integrated for comparison, the accuracy of infusion related risk judgment is improved, infusion abnormity is classified and managed by setting the risk level, and the accuracy of infusion risk judgment is improved. And corresponding emergency measures are taken in combination with preset rules, so that events of different risk levels can be effectively responded, intelligent analysis is performed on the infusion state in combination with the change trend of physiological parameters, infusion monitoring is not limited to flow velocity and liquid quantity levels, comprehensive judgment is performed in combination with the physiological status of a patient, and the accuracy of infusion monitoring is improved. And the comprehensiveness of abnormal recognition in the infusion process is improved.

The invention provides an infusion monitoring system for a smart ward, and relates to the field of smart medical monitoring. The infusion monitoring system for the intelligent ward comprises a ward control module, an infusion terminal, an alarm terminal, a remote monitoring terminal, a mobile control terminal, a medication database, a label identification database and a label identification terminal, and the ward control module receives infusion speed, infusion amount, infusion bag information and medicine information sent by the remote monitoring terminal through WIFI wireless communication. According to the system, advanced technologies such as the Internet of Things technology, sensors, data analysis and artificial intelligence are combined, the infusion process in a ward is monitored and managed in real time, the treatment precision can be improved, human errors are reduced, the ward management efficiency is improved, labor resources are saved, the safety of a patient is improved, and medical risks are reduced; according to the system, remote management of medical staff on wards is realized, resource allocation is optimized, more convenient, more intelligent and higher-quality medical services are provided for patients, and meanwhile, the diagnosis and treatment and service quality is improved.

The present disclosure provides a non-condensable gas reduction system that is easy to maintain and returns non-condensable gas contained in geothermal fluid to a reduction well. [Solution] A non-condensable gas reduction system for use in a geothermal power plant comprising a gas-liquid separator that separates geothermal fluid flowing from a production well into a first gas and a first liquid, an evaporator that performs heat exchange between the first gas and a working medium, a turbine that rotates by the working medium discharged from the evaporator, and a condenser that cools the working medium that rotates the turbine and condenses the working medium into a liquid, the non-condensable gas reduction system comprising: a pump that pressurizes a third liquid to be sent to a reinjection well; and an ejector driven by the third liquid, that attracts non-condensable gas contained in the first gas and remaining uncondensed in the evaporator, and discharges a fourth liquid which is a mixture of the third liquid and the non-condensable gas, wherein the first liquid and the fourth liquid are mixed and sent to the reinjection well.

The invention discloses a medical infusion pipeline pressure detection device which comprises a shell, symmetrical moving grooves are formed in an inner cavity of the shell, positioning mechanisms used for clamping and positioning an infusion pipeline are arranged in inner cavities of the moving grooves, symmetrical movable grooves are formed in the outer portion of the shell, inner cavities of the movable grooves are movably connected with push rods, and the push rods are movably connected with the movable grooves. A cavity is formed in the side wall of one side of the shell, a driving mechanism used for driving the positioning mechanism and the push rod to move is arranged in an inner cavity of the cavity, and when the driving mechanism rotates, the positioning mechanism horizontally moves towards the center position of the shell. The driving groove is driven to rotate anticlockwise through clamping fit of the driving block and the driving groove, the effect of driving the symmetrical clamping plates to clamp an infusion pipeline is achieved, the infusion pipelines of various sizes can be clamped and positioned, the infusion pipelines are stretched through the symmetrical stretching plates, the bending degree of the infusion pipelines is reduced as much as possible, and the production efficiency is improved. And the contact surface between the outer wall and the pressure sensor is wider.

An infusion pump determines whether a pressure change is due to backpressure associated with a patient infusion line set associated with the intravenous infusion line or due to static pressure associated with a fluid container providing a fluid to the intravenous infusion line, determines that the pressure change did not result from an occlusion event based on the pressure change occurring over the first threshold period of time and, after determining that the pressure increase did not result from an occlusion event, the pump provides an indication that the pressure change is associated with the medical container or patient infusion line set and adjusts a motor speed of the pump or an amount of compression provided to the intravenous infusion line.

The present invention relates to a modular and scalable system for intelligent vertical farming infrastructure, using the latest in water recycling sciences, and artificial-intelligence based automation. This helps to combat the issue of sustainable Agriculture+its minimizing usage of water, energy, and space. It combines a vertical farming structure with multiple levels of cultivation with an irrigation and drainage system to achieve recirculation of water. The water recycling unit consists of rainwater harvesting, wastewater collection and multi-stage treatment subsystems, which can guarantee a continuous supply of high-quality recycled water for irrigation. The invention also combines a network of Internet of Things (IoT)-enabled sensors and AI-based control circuitry to track and manage environmental conditions (e.g. light intensity, humidity, temperature, and nutrient levels).

An embodiment relates to an active implantable medical device (AIMD) comprising: a permeability module to allow ingress of a fluid into an osmotic agent chamber of the AIMD, a compressible piston, a drug chamber comprising a drug or being provided to receive a drug and a valve module to allow flow of the drug from the drug chamber to outside the AIMD through one or more drug outlets present in the AIMD, wherein the AIMD has dimensions that allow the AIMD to be implanted, subcutaneously, in a human body.

The present invention is configured to calculate a flow rate across a wide range of flow rate, from a low range to a high range, and includes: a fluid resistance element provided to a channel; an upstream pressure sensor that detects an upstream pressure with respect to the fluid resistance element; a downstream pressure sensor that detects a downstream pressure with respect to the fluid resistance element; and a flow rate calculation unit that calculates a flow rate based on the upstream pressure and the downstream pressure, in which the flow rate calculation unit calculates the flow rate based on viscous resistance, inertial resistance, and a degree of effect of rarefaction.

A CSF management method for use with a patient forms a closed loop CSF circuit between two points on the patient's body. The CSF circuit has a therapeutic inlet to receive a therapeutic material (e.g. a drug), and a pump having a pump outlet to direct CSF along the CSF circuit. The method controls the pump to direct CSF from the pump outlet at a CSF rate that is different from the natural flow rate (i.e., the natural CSF flow rate). The therapeutic material is added to the CSF via the therapeutic input at a therapeutic rate. The CSF rate is different than the therapeutic rate and / or may be greater than the therapeutic rate. Alternative methods may control a bolus drug infusion to localize the application to a target region.

An embodiment includes a system comprising: an artery, a vein, and a nerve; a first length of tubing adjacent at least one of the vein, artery, and nerve; a second length of tubing to couple to the first length of tubing; and a pump comprising a number of actuators; wherein when the system when operating is configured such that (b)(i) the second length of tubing couples to at least one of the number of actuators, (b)(ii) ends of the first and second lengths of tubing are closed, (b)(iii) a second end of the first length of tubing is operatively coupled to a second end of the second length of tubing, (b)(v) the pump pulsates fluid within the first length of tubing in response to the number of actuators intermittently contacting the second length of tubing.

An apparatus, comprising an environmental control element configured to control at least one environmental condition of a substance contained within a chamber, the environmental control element includes a thermal insulator configured to provide a thermal shield to the substance and a phase change material (PCM) configured to thermally regulate at least one environmental condition. The environmental control element is configured to control the environmental condition without use of an external power source, thereby allowing the apparatus to be thermally self-recharging.

The invention discloses a medical oncology implantable infusion port leakage monitoring system and method, and relates to the technical field of infusion leakage detection. The multi-parameter sensor module is used for monitoring pressure fluctuation in an infusion port, sensing temperature change of surrounding tissues, detecting abnormal leakage conditions of medicine components and obtaining multi-parameter sensor data; the flexible electronic circuit module is used for processing multi-parameter sensor data in real time; the data analysis and early warning module is used for performing real-time analysis on the processed multi-parameter sensor data and performing graded early warning; and the wireless communication module is used for transmitting the data of the multi-parameter sensor to an external terminal in real time by adopting a wireless communication technology. The invention relates to data acquisition, signal processing, feature extraction and fusion, leakage threshold judgment and response and feedback of an alarm mechanism, the accuracy of sensor data is ensured by applying a multi-modal fusion algorithm, and the safety and medical response efficiency of a patient are improved through a graded early warning mechanism.

A novel embodiment of a pump system, for example, of the type that would be used in a wearable drug delivery system, comprises dual linear-actuated plungers disposed in a pump chamber. The plungers are coupled to a leadscrew having both left-hand and right-hand threads such that rotation of leadscrew in a first direction moves the plungers together and rotation of leadscrew in a second, opposite direction moves the plungers apart. Movement of the plungers away from each other draws one or more doses of a liquid drug from a reservoir into the pump chamber, while movement of the plungers together forces liquid drug to a patient interface for delivery to the patient.

A fluid handling cassette, such as that useable with an automated peritoneal dialysis (APD) cycler device or other infusion apparatus, may include a generally planar body having at least one pump chamber formed as a depression in a first side of the body and a plurality of flowpaths for a fluid that includes a channel. A patient line port may be arranged for connection to a patient line and be in fluid communication with the at least one pump chamber via at least a first one of said flowpaths, and an optional membrane may be attached to the first side of the body over the at least one pump chamber. In one embodiment, the membrane may have a pump chamber portion with an unstressed shape that generally conforms to the depression of the at least one pump chamber in the body and is arranged to be movable for movement of the fluid in a useable space of the at least one pump chamber. One or more spacers may be provided in the at least one pump chamber to prevent the membrane from contacting an inner wall of the at least one pump chamber. The patient line, a drain line, and / or a heater bag line may be positioned to be separately occludable in relation to one or more solution lines that are connectable to the cassette.

A CSF management method for use with a patient forms a closed loop CSF circuit between two points on the patient's body. The CSF circuit has a therapeutic inlet to receive a therapeutic material (e.g. a drug), and a pump having a pump outlet to direct CSF along the CSF circuit. The method controls the pump to direct CSF from the pump outlet at a CSF rate that is different from the natural flow rate (i.e., the natural CSF flow rate). The therapeutic material is added to the CSF via the therapeutic input at a therapeutic rate. The CSF rate is different than the therapeutic rate and / or may be greater than the therapeutic rate. Alternative methods may control a bolus drug infusion to localize the application to a target region.

An apparatus and method for detecting intravenous (IV) infiltration and managing fluid delivery in an IV setup are disclosed. The apparatus includes a controller with an artificial intelligence (AI) engine to process real-time and historical IV parameters, a communication module for remote monitoring and control, and a sensing arm with sensors to monitor parameters like pressure, flow rate, temperature, acoustic signals, and air bubbles within the IV line. A first clamp and a second clamp are attachable to the IV line to selectively occlude fluid flow. Syringe holders connected to the IV line via an aggregation tube or Luer lock include a plunger control mechanism for adjustable injection timing, pressure, and volume. Monitored parameters are analyzed to detect IV infiltration, blockages, or abnormalities, and alerts are transmitted to medical professionals via the communication module or displayed on an integrated user interface, enabling real-time detection and dynamic adjustments.

A fluid regulator includes a poppet valve within a flow path that selectively allows a flow of fluid to move from an inlet to an outlet. A threaded regulating interface adjusts a spring tension exerted toward the poppet valve and defines a regulated flow of the fluid through the flow path. A fluid purge mechanism is positioned within the threaded regulating interface. The fluid purge mechanism operates along a rotational axis of the threaded regulating interface and adjusts a boundary of the flow path and manipulates the poppet valve to a maximum operating position to define a purging flow of the fluid. A programmable logic controller cooperates with the powered actuator and a pressure sensor to define a closed-loop interface that adjusts the regulated flow of the fluid through the flow path.

The invention discloses an intelligent monitoring infusion pump, and particularly relates to the technical field of infusion pumps, the intelligent monitoring infusion pump comprises a connecting cylinder, a flow guide monitoring assembly is arranged on the connecting cylinder, the flow guide monitoring assembly comprises a gathering ring embedded in the connecting cylinder, a center block is arranged in the middle of the gathering ring, and a baffle is arranged at the bottom of the center block; a storage cavity is formed between the center block and the baffle. Manual fine adjustment of the liquid medicine flow can be achieved, an air channel is rapidly blocked when the liquid level is abnormal or liquid needs to be stopped emergently, automatic emergency adjustment of pressure and flow is achieved, and the problem that in the prior art, only pressure can be detected, but rapid adjustment cannot be achieved is solved; bubbles rise and escape under the action of buoyancy and are prevented from entering blood vessels of a patient along with liquid medicine, and the defect that bubbles are not easy to eliminate in the prior art is overcome.