88 results about "Fluid management" patented technology

本发明实施例公开了一种基于蛋白质组学的脓毒症休克患者液体管理策略预测方法。所述方法包括：收集脓毒症休克患者的血浆样本，检测蛋白质标志物的表达水平，所述蛋白质标志物为GAL、NFASC、MICB_MICA、MAP2K6、JCHAIN和CSF3的组合；基于亚组识别模型计算效益得分，获得脓毒症休克患者的液体管理策略结果。本发明通过收集脓毒症休克患者的临床数据和蛋白质表达数据，采用LASSO回归分析，构建基于上述蛋白质标志物的亚组识别模型，进而获得效益评分，基于效益评分能预测患者液体管理策略方案的适用性，为脓毒症休克患者的液体治疗提供了可靠的方案，实现个体化和精准的液体治疗，在临床具有较好的应用前景。

Systems, devices, and methods for integrated cell processing and analysis with precise fluid management are disclosed. The system includes a cartridge with processing modules connected by a fluidic bus with pressure regulation to control fluid flow between modules and to analytical tools. Methods for controlling fluid transfer by adjusting pump operational parameters in response to pressure measurements ensure precise sample delivery volumes and flow rates throughout the integrated platform. Fluid pulsations are reduced or prevented during the fluid transfer for accurate sample transfers. Fluid transfer steps coordinate fluid flow between an on-cartridge analytical module and / or off-cartridge analytical tools. The cartridge may include an analytical module with a channel selector to direct fluid samples from a plurality of fluid conduits to selected analytical chips. A positioning system with rack-and-pinion mechanisms enables precise movement of analytical chips along multiple axes to interface with analytical tools.

A fluid management system includes a fluid management controller and a fluid dispenser. The controller authorizes control of the one or more fluid management components over a wireless interface. A dispensing meter can be activated by an authentication device. The fluid meter includes a cartridge valve with a valve cartridge and a valve stem. The cartridge valve guides the valve stem and provides the only sealing surface for the dynamic seals and control seal disposed on the valve stem. The handheld meter dispenses through a nozzle, which includes an overmolded stem tip that generates a laminar fluid flow as the fluid exits the nozzle. The handheld fluid meter includes circuitry configured to invert the orientation of a visual output provided by a display of the handheld fluid meter to facilitate installation of the handheld fluid meter for use in an oil bar application.

Methods and apparatuses for blood clot aspiration. Described are fluid management components and assemblies for blood clot extraction from a patient's body and for filtering blood and recirculating blood back into the patient's body.

A multi-temperature hydronic system (MTHS) (10) comprises a plurality of heat rejection devices including at least two of an evaporative fluid cooler (28), a dry cooler (30), or a heat recovery heat exchanger (32). The MTHS (10) also includes an MTHS skid (11) having a plurality of valves (50, 52, 54, 58, 60, 61, 62, 64, 66, 74, 76, and / or 78) controllable to adjust fluid flows of a fluid between the plurality of heat rejection devices, a chiller oil cooler (16a), and a chiller condenser (14a). The MTHS (10) also includes a controller (34) configured to control the plurality of valves (50, 52, 54, 58, 60, 61, 62, 64, 66, 74, 76, and / or 78) to selectively engage at least one heat rejection device of the plurality of heat rejection devices to achieve a target temperature of the fluid at the chiller oil cooler (16a), and to optimize a temperature of the fluid at the chiller condenser (14a). Other features may include a spray water circuit (175) of the evaporative fluid cooler (28) and control features related to the evaporative fluid cooler (28) and configured to, among other things, periodically replace water in the spray water circuit (175).

The invention provides a hysteroscope uterine distention medium intelligent management and control system and method based on bimodal data fusion. The system comprises an intelligent sensing execution device and a central management and control server. The intelligent sensing execution device is configured to be detachably installed on the outer wall of the fluid infusion pipeline and used for collecting physical state data of the uterus expanding medium in a non-contact mode and executing on-off control. The central management and control server is configured with a bimodal data fusion engine and synchronously receives the operation video stream and the physical state data; a deep learning algorithm is used to identify a surgical operation stage, and a real-time flow rate and an accumulated consumption amount calculated by physical data are combined to derive a dynamic residual available time length; and generating a hierarchical control instruction according to the matching of the calculation result and the operation stage. According to the invention, fluid control information is superposed to an operation picture through an augmented reality technology, and fluid excessive absorption monitoring and microbubble detection logic are integrated, so that intelligent closed-loop control and active security defense of a hysteroscope operation fluid medium are realized.

A volume management apparatus includes a cardiac evaluation unit configured to evaluate whether the patient suffers from an organic heart disease based on an image of apical four chamber view; a parameter determination unit configured to determine a maximum inner diameter of inferior vena cava and a collapse rate of inferior vena cava based on an image of subxiphoid inferior vena cava view; a score calculation unit configured to determine scores that correspond to the LVEF value, the maximum diameter of the inferior vena cava, and the collapse rate of the inferior vena cava, respectively; and a fluid management plan determination unit configured to search for a fluid management plan corresponding to a score determined, and to perform volume management for the patient according to the fluid management plan searched.

The fluid management device for air conditioning system provided by the embodiment of the application comprises a stator assembly, a first rotor and a second rotor, the first rotor and the second rotor are respectively connected with an impeller and a valve core, the fluid management device is relatively compact, the fluid management device comprises one stator assembly, the number of components is correspondingly reduced, and the control is relatively simple.

The present invention relates to apparatus for fluid management in a robotic catheter-based surgical system. A cassette for use in a robotic drive of a catheter-based surgical system includes a housing configured to support a hemostasis valve having a base and a side port. The housing has a longitudinal device axis associated with an elongated medical device. The cassette further includes a first tube connection point on the housing and above the longitudinal device axis. The first tube connection point is configured to receive a first tube. The cassette further includes a second tube connection point near a top edge of the housing and above the first tube connection point and the longitudinal device axis. The second tube connection point is configured to receive a second tube.

A fluid management apparatus and a heat management system are provided. The fluid management apparatus includes a connecting piece and a liquid storage part. The connecting piece and the liquid storage part are arranged separately, and a first mating part of a liquid storage part shell is sealedly connected to a first connecting port portion of the connecting piece. A liquid storage cavity of the liquid storage part is in communication with a flow channel of the connecting piece, and the connecting piece, which is provided with a flow channel, is arranged separately from the liquid storage part.

The application discloses a fluid management assembly, a communication pipe penetrating a first heat exchanger along a thickness direction of the first heat exchanger, a lumen of the communication pipe being isolatedly arranged in the first heat exchanger with an inner cavity of the first heat exchanger; the first heat exchanger has a first hole communicating with the inner cavity of the first heat exchanger; a base includes a first recess part, a rim of a slot of the first recess part being sealingly connected with a first surface, a bottom wall of the first recess part having a spacing from the first surface, and the first hole and the lumen of the communication pipe both being in communication with a slot cavity of the first recess part. In this way, the inner cavity of the first heat exchanger and the lumen of the communication pipe are respectively in communication with the slot cavity of the first recess part, other components on a side of the first heat exchanger away from the base can be in communication with the slot cavity of the first recess part through a relatively short communication pipe, so that the fluid management assembly has a relatively compact structure and the occupied space of the fluid management assembly is reduced.

In certain embodiments, a surgical handpiece system includes a phacoemulsification tip, a fluid management system, an ultrasound drive system, and a controller. The phacoemulsification tip is attached to the shaft. The fluid management system is configured to manage inflow and outflow of fluid from an ocular surgical site. The ultrasonic drive system is configured to generate torsional and longitudinal vibrations in the phacoemulsification tip. The controller is configured to analyze a voltage and a current applied to the ultrasonic drive system using fast Fourier transform (FFT), and tune an application frequency of the torsional vibration and the longitudinal vibration according to at least one resonant frequency.

The invention relates to the technical field of medical equipment and home rehabilitation, and discloses an intelligent water drinking system and method for liquid management of a heart failure patient, and the system comprises a medical care end monitoring terminal, a cloud intelligent analysis platform, an intelligent water drinking terminal, a portable auxiliary collection terminal and a patient end applet; a multi-dimensional data fusion algorithm and a machine learning model are built in the cloud end, and the cloud end can be connected with a hospital diagnosis and treatment system to obtain data and generate an individualized liquid intake threshold value. According to the method, basic information is input through the medical care terminal, an initial threshold value is generated through the cloud, all the terminals synchronously collect drinking water, physical signs and other data and encrypt and upload the data, the cloud analyzes the data and then performs graded warning and terminal current limiting on abnormal triggering, the medical care terminal forms closed-loop management and control according to a report adjustment scheme, and the data safety is guaranteed through a collaborative encryption and verification mechanism in the whole process. According to the invention, intelligent and safe liquid management of the heart failure patient is realized, the management accuracy and compliance are improved, and the risk of acute attack is reduced.

The invention relates to a fluid management module (200) for managing the circulation of a fluid between different components (131-135) of a motor vehicle, said module (200) comprising: - a substantially hollow fluid circulation housing (210) defining a plurality of fluid circulation lines, said housing (210) being provided with a plurality of fluid inlet / outlet lines (218) in fluidic communication with said plurality of fluid circulation lines, - at least one reversible pump (141, 142), - at least one check valve (151-156), and - at least one pilot-operated diaphragm (161-168), wherein said at least one reversible pump (141, 142), said at least one check valve (151-156), and said at least one pilot-operated diaphragm (161-168) are configured to define at least one specific fluid circulation circuit within said housing (210) of fluid circulation. Figure 1b

Methods and apparatuses for blood clot aspiration. Described are fluid management components and assemblies for blood clot extraction from a patient's body and for filtering blood and recirculating blood back into the patient's body. Also disclosed is a vent system including a common vent line (1508) to fluidly couple a reservoir (1403), a clot capture chamber (1405) and a blood return syringe (1409).

Methods and systems for controlling parameters of a fluid management and medical device system. An illustrative method may comprise initiating a command to acquire a plurality of data signals at predetermined time intervals from a sensor of a fluid management system or a medical device. Upon acquisition, the data signals may be stored in a buffer until a predetermined minimum number of data signals have been acquired. A profile may be generated with the plurality of data signal. The profile may be filtered with an adaptive data filter configured to perform one or more passes over the profile. Each pass of the one or more passes of the adaptive data filter may monitor and analyze a different feature of the data signals and the one or more passes may vary depending on the one or more settings received from the sub system of the fluid management system.

A medical device durability and particulate testing system is provided including a durability tester component configured for continually actuating movement of structural device(s); a simulated blood fluid; fluid flow lines; a particle counter component configured for recording continuous particulate data from device(s) subjected to durability testing; flow meters; a fluid management system; and one or more system controller(s) having a processor configured with software for controlling operation of the system and recording data. In an embodiment, the system includes a user interface accessible via a display. In some embodiments the system further includes a heater paired with temperature measuring devices to maintain fluid temperatures within appropriate bounds to simulate blood within the body. In an exemplary embodiment, the durability and particulate testing system is a continuous flow, closed loop system and configured for testing synthetic structural heart devices to simulate the expected lifetime of the device(s).

A fluid management system including a console including a controller for operating a pump. The console includes a door movable between a closed position and an open position to access a receptacle. The fluid management system further includes a fluid cartridge insertable into the receptacle of the housing of the console. The fluid cartridge is positioned in the receptacle in a loaded position in which the housing of the fluid cartridge lies in a vertical plane when the door is in the closed position and is tilted out of the receptacle in an ejected position when the door is in the open position. The fluid cartridge includes a retention tab extending from a lower edge of the fluid cartridge, the retention tab having a lip, the retention tab engaging a retention tab and recess of the console to retain the fluid cartridge in the ejected position.

An earwax removal device for use with an in-ear equipment includes a holding chamber and a pair of cleaning chambers. A holder for a body of the in-ear equipment is provided in the holding chamber. A receptacle is provided in each of the cleaning chambers to receive the in-ear part of the in-ear equipment. A control system is configured to control a fluid management system and a mechanical cleaning system. Fluids from respective compartments can be provided to the cleaning chambers and directed away from the cleaning chambers, with the mechanical cleaning system providing a mechanical cleaning action concurrently with at least one of the cleaning chambers being at least partially filled with the fluids. The earwax removal device may be configured to provide heated airflow to dry the cleaned in-ear equipment. The earwax removal device may be configured to provide UV irradiation for disinfection.

This application discloses a fluid management component including a flow channel, a liquid storage section, and a filter assembly. The flow channel has a flow channel, and the liquid storage section has a liquid storage cavity. The flow channel communicates with the liquid storage cavity. The liquid storage section includes a first liquid storage section and a second liquid storage section, which are fixedly connected. The filter assembly is at least partially located in the liquid storage cavity. The first or second liquid storage section has a groove forming the liquid storage cavity. The flow channel is at least partially integrated with the first liquid storage section, or at least partially integrated with the second liquid storage section, simplifying the molding process of the overall structure of the flow channel and the liquid storage section, thereby simplifying the molding process of the fluid management component.

An apparatus suitable for clamping at least one microfluidic device, which includes (i) a fluid-tight chamber having a fluid inlet, the chamber being configured to receive a microfluidic device to be clamped by compression of at least one deformable part of the microfluidic device under the action of a pressure of a clamping fluid in the chamber, and (ii) a perfusion fluid management system configured to adjust the pressure of a perfusion fluid in the microfluidic device in such a way that, during a clamping operation, the pressure of the clamping fluid in the chamber is strictly higher than the pressure of the perfusion fluid in the microfluidic device.

The application discloses a fluid management assembly, a block part is located on one side of the first heat exchanger in the thickness direction, a communication pipe is at least partially located in a first hole channel, the communication pipe penetrates the first heat exchanger in the thickness direction of the first heat exchanger, the first hole channel is communicated with a first hole, a pipe cavity of the communication pipe is communicated with a second hole, the pipe cavity of the communication pipe and the first hole channel are isolated from each other in the first heat exchanger, and the first hole and the second hole are isolated from each other in the block part. In this way, other components located on the side, away from the block part, of the first heat exchanger can be communicated with the second hole of the block part through a relatively short communication pipe, the first hole channel is communicated with the first hole, and the communication pipe is at least partially located in the first hole channel, so that the structure of the fluid management assembly is relatively compact, and the occupied space of the fluid management assembly is reduced.

A fluid management system may include a fluid bag and a measurement load cell for monitoring the state of the fluid bag. The measurement load cell may receive an input voltage and generate a differential voltage across output nodes. A compensation circuit may be coupled to the measurement load cell and include inputs with series resistors, an operational amplifier, and a digital-to-analog converter (DAC) coupled by a current limiting resistor. The system may include a controller configured to measure an actual offset voltage of the measurement load cell during a calibration phase, determine required compensation to bring the offset into a desired range, generate a compensation voltage using the DAC, and apply the compensation voltage to the measurement load cell circuit. This compensation may minimize offsets in the load cell, improving overall system dynamic range and performance for more accurate fluid weight measurements.

Methods for controlling fluid management for a patient are disclosed herein. An example computer-implemented method comprises: initializing a fuzzy machine learning model based on a fluid management ruleset for a population including the patient; training the fuzzy machine learning model on historical medical data associated with the population to generate a trained fuzzy ruleset, the historical medical data including a plurality of indications of historical fluid management treatments for the population and associated treatment outcomes; receiving clinical data for the patient; generating a fluid management recommendation by applying the trained fuzzy ruleset to the clinical data for the patient; presenting, via a graphical user interface, the fluid management recommendation and one or more indications of corresponding rales included in the trained fuzzy ruleset to a clinician.

The present invention relates to a connection system for connecting a two-lumen catheter to an fluid management device, the connection system comprising a catheter connecting device and a management connecting device configured to be connected together, the catheter connecting device comprising a polymeric gasket and a rotor abutted within the housing against the polymeric gasket, the management connecting device being configured to switch between a forward configuration and a reverse configuration by rotation of the socket around the flow axis.

The present disclosure provides a vehicle wash fluid management system. An apparatus may include a purge fluid mixing tank located within a cabin of a vehicle. The apparatus may include a concentrate container external to the cabin, the concentrate container configured to accommodate a supply of a cleaning liquid concentrate fluid. The apparatus may include a conduit fluidly coupling the concentrate container to the cleaning fluid fluid mixing tank such that a cleaning fluid concentrate fluid contained in the concentrate container may flow to the cleaning fluid fluid mixing tank.

To provide a flow cell for use in fluid management and / or processing system.SOLUTION: A flow cell of the present invention comprises: a body having an inlet and an outlet; and a fluid flow channel extending from the inlet to the outlet of the body. The body further comprises a receptacle comprising a chamber forming a part of the fluid flow channel of the body, the chamber comprising a first opening for connecting a functional element to the flow cell such that the functional element is in contact with or exposed to a fluid flow passing through the fluid flow channel. A first tubular connector is arranged adjacent to the inlet of the body. A second tubular connector is arranged adjacent to the outlet of the body. The flow cell further comprises a functional element and a fluid flow channel that extends from the first tubular connector to the outlet of the body and the second tubular connector through the body and a receptor. The present invention further relates to fluid management and / or processing system comprising a tubing arrangement and one or more flow cells.SELECTED DRAWING: Figure 1

Fluid management systems for flow type particle analyzers are provided. Aspects of the fluid management systems include a flow cell comprising an input and output; a cuvette comprising an input coupled to the output of the flow cell and further comprising an output; a sample input line for fluidically coupling a sample fluid source to the input of the flow cell; and a fluid supply subsystem configured to alternatively fluidically couple: (a) a primary fluid source; or (b) one or more secondary fluid sources, to the input of the flow cell. Also provided are methods of using flow type particle analyzers having the subject fluid management systems.

A medical system may include: a medical device including an elongate shaft configured to access a treatment site within a patient and a handle coupled to a proximal end of the elongate shaft; a laser device including an elongate tubular member configured for insertion through a working lumen of the medical device, the elongate tubular member including a cooling channel and a laser fiber extending distally within the cooling channel; and a fluid management system including an inflow pump configured to pump fluid from a first fluid supply source through the elongate shaft to the treatment site, a cooling pump configured to pump fluid from a second fluid supply source through the cooling channel, and a controller configured to control the inflow pump and the cooling pump.