39 results about "Pump function" patented technology

Systems and methods for testing a pump assembly for a cooled radiofrequency treatment procedure. In some embodiments, the pump assembly and at least one pump head are driven by at least one respective motor, where the at least one pump head is coupled to tubing for delivering a cooling fluid to a medical probe assembly. The at least one pump head is configured to pump the cooling fluid through the tubing for the cooled radiofrequency treatment procedure. The system can also include a programmable controller operatively connective to the pump assembly and configured to control the pump assembly, and one or more pump function sensors for sensing operation parameters associated with the pump assembly and communicating the pump operation parameters to the controller. The controller can determine that the pump assembly is operating properly based on the operation parameters and can adjust the operation of the motor or output an alert.

The invention provides a self-power-generating medical dressing with a self-pumping function and a preparation method of the self-power-generating medical dressing. The self-power-generation medical dressing with the self-pumping function comprises a power generation layer and a seepage moisture absorption and preservation layer which are arranged in sequence, the power generation layer comprises a base material, and a wet electric effect active substance and an electrode material are distributed in the base material. The wound in-situ seepage power generation dressing with the self-pumping function based on the wet electric effect is provided for solving the problems that existing electrical stimulation medical dressings generally cannot achieve simple and stable self-power supply and are single in treatment means, and effective management of wound in-situ power generation and seepage is integrally achieved. The invention further provides a preparation method of the self-generating medical dressing with the self-pumping function.

The inventive concept relates to an implantable device for improving a pump function of a heart of a human patient comprising a force generating unit, a force transferring unit configured to transfer a force from the force generating unit to a heart contacting organ, the heart contacting organ being adapted to exert said force from the force generating unit on a first position of the heart of the human patient, and a position changing unit which is configured to change the position of the heart contacting organ to exert said force on a second position of the heart of the human patient.

The invention provides a hydraulic fracturing simulation device, which comprises a pressure pump, a function module, an execution module, a visual display module and a valve assembly, the function module comprises a sand mixing unit and an oil-water separation unit, the execution module comprises a shaft simulation unit and a multi-stage crack simulation unit, and the shaft simulation unit and the multi-stage crack simulation unit are communicated. A gradient pressure triggering structure is arranged in the multi-stage crack simulation unit so as to realize multi-stage crack progressive expansion; the valve assembly comprises a first valve, a second valve, a third valve and a fourth valve, the first valve is connected with the pressure pump and the sand mixing unit, the second valve is connected with the sand mixing unit and the shaft simulation unit, the third valve is connected with the pressure pump and the oil-water separation unit, and the fourth valve is connected with the oil-water separation unit and the shaft simulation unit; thus, through integrated design, a valve assembly double-loop switching mechanism and gradient triggering and visual collaborative layout, the requirements for integration, continuity, high simulation and high precision of the hydraulic fracturing experiment are met, and the hydraulic fracturing experiment system fully meets the requirements for industry core development.

This invention discloses a high-efficiency dual-condition fluid transfer pump, relating to the field of fluid machinery technology. Addressing the problems of existing fluid pumps being single-function, inefficient, and lacking adaptability to various operating conditions, this invention achieves high-efficiency fluid transfer by optimizing the pump impeller structure and fluid channels, resulting in high transfer efficiency, low energy consumption, and minimal wear. Through a closed internal circulation channel and a throttling adjustment component, the adjustable conversion between mechanical kinetic energy and fluid pressure is achieved. It can be widely applied to various fluid transfer scenarios and various scenarios involving the mutual conversion of mechanical kinetic energy and fluid pressure.

The invention discloses a bendable plane type soft pump driven by a dielectric elastomer. The pump body comprises a pumping sealing layer, a dielectric elastomer film, a negative pressure sealing layer, a one-way valve and a part of hose; the pumping sealing layer is provided with a fluid inlet and a fluid outlet, the one-way valve is connected with the fluid inlet and the fluid outlet through the hose, fluid flows to the fluid inlet through the one-way valve, flows to the fluid outlet through flow channels among a plurality of unit pumping cavities in the pumping sealing layer and flows out of the one-way valve, and the pumping sealing layer is bonded with the dielectric elastomer film through a bonding surface; the dielectric elastomer film is bonded with the negative pressure sealing layer through a bonding surface, one end of the negative pressure sealing layer is provided with an air exhaust hole, and the air exhaust hole is communicated with a plurality of unit negative pressure cavities on the negative pressure sealing layer through flow channels. The soft pump utilizes voltage to control compression of the dielectric elastomer film and realizes volume change of the pumping cavity under the action of negative pressure so as to pump fluid, the pumping function is kept when the soft pump is bent by utilizing the structural infinitesimal, and the soft pump is suitable for a driving device in a soft robot or wearable equipment.

The present invention discloses an electric screw self-priming high-pressure plunger pump device, which solves the problem of electric multi-point pumps being unable to refill oil and requiring an external filling system for refilling, and also solves the problem of single-screw pumps being unable to produce high pressure. The device is constructed by connecting an electric multi-point pump with a single-screw pump rod, creating a dual-pump system. The electric multi-point pump plunger unit is responsible for precisely metered, high-pressure fluid delivery, while the single-screw pump rod is responsible for delivering fluid to the electric multi-point pump plunger unit. This simplifies the fluid delivery process from start to finish, making the structure more compact and simpler. In particular, the cost of fluid delivery is significantly reduced, with the cost of using the equipment reduced by at least 40%.

A device for orienting core samples relative to their position in the subsoil before extraction, attaching to a core bit during drilling features a robust tubular body with a detector to identify core sample breakage and orientation using triaxial accelerometers and gyroscopes, measuring orientation by the gravity vector or true north. An electronic control unit stores, timestamps, and transmits data wirelessly via BLUETOOTH®, ensuring data reliability without removing the device. The device includes adapters for different pipe diameters, minimizing the need for disassembly and reducing user fatigue, while maintaining pump functionality with a bypass valve if needed.

The application relates to a pump head, comprising a pump cover, a diaphragm seat and a functional part arranged between the pump cover and the diaphragm seat. Two independent flow paths are arranged in the pump head, the first one comprising a one-way communication input flow path and an output flow path, and a pressure relief flow path selectively communicated with the output flow path, and the second one comprising a stop flow path. A valve function sheet is arranged on the functional part, the valve function sheet and the pump cover form a valve function cavity communicated with the output flow path, and the valve function sheet and the diaphragm seat form a pump function cavity communicated with the stop flow path, and the valve function sheet selectively communicates the output flow path and the pressure relief flow path according to the pressure of the valve function cavity and the pump function cavity. Through the above technical scheme, the fluid has two independent flow paths in the pump head, the pump function and the valve function are respectively realized through the two independent flow paths, the flow path structure is optimized, and the problem of low reliability caused by the mutual correlation of the pump valve flow path in the traditional technology is solved.

The invention relates to pump-dispersers intended for pumping, mixing and dispersing multi-phase media, particularly water-mineral binding materials and other liquid media containing solid particles. The technical result of the invention is the controlled combination of two technical processes in a single device, namely the pumping of a working medium (pump function) and the intensive mixing of same (dispersion / disintegration / homogenization function), wherein the working chamber of a pump has no dead zones, and all of the surfaces inside the working chamber of the pump are self-cleaning during the rotation of shafts. A pump-disperser for pumping liquid media that contain solid particles comprises a housing having a discharge pipe and a suction pipe, said housing having two shafts disposed therein which rotate in the same direction and have screw conveyors mounted thereon. At the end of the working chamber, in the region in front of the discharge pipe, the shafts further have cam elements mounted thereon, said shafts rotating at a rate of 800-4500 rpm.

Regarding refillable containers for liquids, the aim is to make it easier to visually confirm the appropriate liquid volume when refilling, thereby preventing overfilling. [Solution] The liquid refill container 100 has a self-standing container body 10 for storing liquid L. The container body 10 has an opening 40 for pouring in liquid, and an indicator part 50 is provided on the inner wall surface 10a of the container body 10 at a position visible from the opening 40 to indicate when the liquid level has been reached. The indicator part 50 is a recess formed in the inner wall surface 10a, or a projection that protrudes from the inner wall surface 10a toward the inner space. The liquid refill container 100 may further include a head part 20 that can be attached to and detached from the mouth 14 of the container body 10, and the head part 20 may include a nozzle 24, a liquid suction tube 23, an actuator 22, and a pump function.

A device for producing bone cement, comprising a base part having a carrier for receiving a vessel containing monomer liquid, a bottom part having a collection region with a tip and a piston having a passage for receiving the hollow mandrel, and a cartridge for receiving a PMMA bone cement powder, wherein the cartridge comprises a septum which delimits the cartridge toward the outside; wherein the piston is configured to pump a monomer liquid from the collection region and into the cartridge through the hollow mandrel.

The invention relates to a method for performing a function extension of a pump, in particular a centrifugal pump, comprising the following steps: providing optional pump functions for the pump on a display means of a user terminal which is or can be connected to the pump (10) and a server (30); transmitting, upon request by the user, a request to an external server for activating the selectable pump function; providing, by the server, a function-specific token for the requested pump function to the user terminal device; transmitting, by the user terminal, the function-specific token to the pump; and if it is determined that the received function-specific token is valid for the pump function to be activated, activating an optional pump function by a pump control device of the pump.

The hydraulic transmission system comprises a main motor and is characterized in that the output end of the main motor is provided with a main hydraulic pump, the main hydraulic pump is connected with a hydraulic oil tank, one side of the main hydraulic pump (2) is provided with a main pump function switching valve set, the output end of the main hydraulic pump (2) is provided with a filtering energy storage safety valve set, and the output end of the main hydraulic pump (2) is provided with a main pump function switching valve set. A plurality of control valve banks are arranged at one end of the filtering energy storage safety valve bank, a moving part system is arranged at the rear ends of the control valve banks, and a pilot oil source valve bank is arranged on a main oil way of the hydraulic oil tank. And through the innovative mode switching design, a single pump source perfectly considers the contradictory requirements of high-precision operation and efficient walking, the performance is guaranteed, meanwhile, the system is simplified, and the cost is reduced. Precision and response are both considered; a constant pressure mode is matched with an energy accumulator, so that an extremely stable pressure environment is provided for servo control; and the energy accumulator is cut off in the load sensitive mode, so that quick response of pressure during walking is ensured.

The present disclosure relates to an implantable device for improving the pump function of the heart of a human patient by applying an external force on the heart muscle. The device is provided with a first part having a first surface comprising a ceramic material, and a second part having a second surface comprising a ceramic material.

Systems and methods for testing a pump assembly for a cooled radiofrequency treatment procedure. In some embodiments, the pump assembly and at least one pump head are driven by at least one respective motor, where the at least one pump head is coupled to tubing for delivering a cooling fluid to a medical probe assembly. The at least one pump head is configured to pump the cooling fluid through the tubing for the cooled radiofrequency treatment procedure. The system can also include a programmable controller operatively connective to the pump assembly and configured to control the pump assembly, and one or more pump function sensors for sensing operation parameters associated with the pump assembly and communicating the pump operation parameters to the controller. The controller can determine that the pump assembly is operating properly based on the operation parameters and can adjust the operation of the motor or output an alert.

A cardiac assist device (10) for acting on a heart (11) having an actual end-diastolic conformation in vivo and an ideal end-diastolic conformation that would cause the heart (11) to pump more efficiently. The cardiac assist device (10) has a shell configuration (13) with a top opening (24), a base (21), and a maximum interior diameter (MD) between the top opening (24) and the base (21). The shell configuration (13) has a total long axis length (TL). The shell configuration (13) has a major axis that follows a curvature rotated about a major axis. At last one inflatable membrane (26) extends from said shell configuration (13), wherein said shell configuration (13) and said at least one inflatable membrane (26) act upon said heart (11) to alter said actual end-diastolic conformation toward said ideal end-diastolic conformation.

One aspect of the present disclosure relates to a multipurpose grease barrel pump for preventing a presence of residual grease inside a grease barrel, which may easily adjust a discharge amount of grease, in which the multipurpose grease barrel pump is based on grease residue prevention type, has a branch and shock prevention structure, enables control (on / off) of a flow amount of the pump, and has a grease spray function, a function of periodically or continuously injecting a very small amount of the grease, and a typical pump function of discharging a large amount of the grease.

To provide a hanging nozzle for a refill pouch which has an extremely small number of parts and can sufficiently ensure a pump function. [Solution] The mounting part (10) can be attached to the outlet at one end of the refill pouch. The first duckbill check valve (11) is made of elastic material, and its inlet is installed at the outlet of the mounting part, and the outlet is composed of two leaflets that converge at a first slit. The pump chamber (12) is made of elastic cylindrical material, and its inlet is exteriorly fitted to cover the outlet of the first duckbill check valve. The outlet is a second duckbill check valve part composed of two leaflets that converge at a second slit, and the two leaflets of the second duckbill check valve part are arranged in the same direction as the convergence of the two leaflets of the first duckbill check valve. The frame (13) is made of flexible frame material, and its inlet is attached to the mounting part, sandwiching the inlet of the pump chamber and the inlet of the first duckbill check valve.

This utility model discloses a multifunctional hydrostatic testing system, including a water storage tank, a pressure testing pump, an electric flow regulating valve, a control system, and a pressure sensor. The water storage tank is connected to a water supply pipeline, a first hydrostatic testing pipeline, and a second hydrostatic testing pipeline. A third hydrostatic testing pipeline is connected to the first hydrostatic testing pipeline. All three pipelines are connected to the test container. The water supply pipeline is connected to a water supply system. The pressure testing pump and the electric flow regulating valve are respectively installed on the first and second hydrostatic testing pipelines. The pressure sensor is located at the highest point of the test container. The electric flow regulating valve is connected to the pressure sensor via the control system. The advantages are: the system has a multi-purpose pump function, can remotely adjust the pressure rise and fall rate during hydrostatic testing, and effectively improves the stability of the pressure rise and fall rate and accurately controls the pressure test value through automated control.

The utility model provides an integrated pump which comprises a diaphragm pump assembly, a peristaltic pump assembly, a motor and a transmission part. The diaphragm pump assembly comprises a diaphragm pump driving part and a diaphragm pump functional part, and the peristaltic pump assembly comprises a peristaltic pump driving part and a peristaltic pump functional part. The motor drives the diaphragm pump driving part and the peristaltic pump driving part through the transmission part, and the diaphragm pump driving part and the peristaltic pump driving part respectively drive the diaphragm pump functional part and the peristaltic pump functional part to perform pumping action. The pump is an integrated pump, has the functions of a diaphragm pump and a peristaltic pump at the same time, is driven by the same motor, is simple in structure, low in cost, small in overall size and small in occupied installation space, in addition, the two pumps are driven by the same motor, and can work together in a fixed coordination rhythm all the time from the hardware structure, so that the cost is reduced, and the working efficiency is improved. The fixed output proportion is always kept, the proportion is not prone to being damaged, stability is high, and reliability is high.

The present invention relates to a method for early detection of artificial pump dysfunction based on a time-frequency analysis of the pump motor power consumption (PRC). The method allows to prevent low output syndrome, cardiogenic shock, pump thrombus and / or cardiac arrest or death as well as to monitor the efficacy of a thrombolytic therapy and / or to optimize intensity and duration of a thrombolytic therapy.

The invention belongs to the technical field of pump body function detection, and particularly relates to a shield pump function monitoring device which comprises a pump body, a stator cavity is fixedly installed in the pump body, a rotor shaft is arranged in the stator cavity, three groove boxes are symmetrically arranged on the outer wall of the stator cavity, and monitoring assemblies are arranged in the three groove boxes. The three groups of monitoring assemblies are spaced by 120 degrees; the three groove boxes are connected with the outer wall of the stator cavity at intervals of 120 degrees with the center of the rotor shaft as the center point through the balance connection assembly, the three monitoring assemblies can monitor the functions in the pump body, and the balance connection assembly and the self-checking assembly work in a matched mode. On one hand, when the monitoring assembly detects the interior of the shield pump through the detection coil, the detection coil can be more stable, monitoring operation on the function of the shield pump is better facilitated, on the other hand, the balance connection assembly and the self-checking assembly can greatly guarantee the integrity of the detection coil, and the shutdown replacement time can be shortened.

This product is used to store liquid. A thread is provided around the neck formed at the top end, and a lid member according to the intended use can be attached by screwing it in. As an example, the reference front view of the product with the lid member attached shows the state in which the lid member equipped with a pump function for extracting the liquid stored inside is attached.

The present invention relates to the technical field of electromagnetic pumps, and in particular to an anti-adhesion electromagnetic pump with a striker, comprising an electromagnetic component, a liquid inlet component and a liquid outlet component, wherein the liquid inlet component comprises a liquid inlet pipe, the liquid inlet pipe is provided with a liquid cavity, a piston is installed in the liquid cavity, and the liquid outlet component comprises a liquid outlet pipe, a first rubber plug, a liquid outlet unit and an anti-adhesion component; a liquid outlet is provided in the liquid outlet pipe, the anti-adhesion component is installed on the inner side of the liquid outlet, and the anti-adhesion component is elastic; the first rubber plug reciprocates between the piston and the anti-adhesion component, and the first rubber plug is used to make the anti-adhesion component hit the liquid outlet unit and open or close the outlet of the piston. The present invention provides an anti-adhesion electromagnetic pump with a striker, in which an anti-adhesion component is additionally provided, and the liquid outlet unit is pushed by the anti-adhesion component to prevent the liquid outlet unit from adhering to the liquid outlet, thereby maintaining the normal use of the water pumping function of the electromagnetic pump.

A system and method for the installation and operation of a cardiac assist device. Flexible guides are advanced into a prepared space using minimally invasive techniques. A cardiac assist device is advanced into position in the pericardial area along the flexible guides. Once in position, the cardiac assist device is activated while still engaged with the flexible guides. The flexible guides provide structural integrity to the cardiac assist device needed in order for the cardiac assist device to function properly. The forces supplied to the heart by the cardiac assist device are affected by the presence of the flexible guides. The structure of the flexible guides, the position of the flexible guides, and the structure of the cardiac assist device are customized to supply the forces needed by a particular heart in order to assist the heart in pumping more efficiently.

A MEMs micropump is disclosed that is configured as a substrate including a lower wafer and an upper wafer that together function as a pump and first and second valves on opposing sides of the pump, the micropump comprising: an inlet port for receiving fluid and an outlet port for releasing fluid, a chamber that communicates with the inlet and outlet ports, the chamber and inlet and outlet ports function together as a fluid path within the micropump; and a membrane, as part of the upper wafer, configured to deflect in and out of the fluid path, wherein the first and second valves each include a valve seat within the fluid path and a thin film piezoelectric layer configured to cause the membrane to deflect and engage the valve seat thereby preventing fluid flow within the fluid path; and wherein the pump including the chamber and a bulk piezoelectric layer for causing the membrane to deflect, thereby withdrawing fluid from the inlet port into the chamber and pumping fluid out of the chamber and outlet port.

System (1) for providing an operating fluid in a motor vehicle (2) comprising a tank (3) in which the operating fluid can be stored and a dispensing point (4) at which the operating fluid can be provided, further comprising a bidirectionally operable pump (9) for pumping the operating fluid, functionally arranged between the tank (3) and the dispensing point (4), and further comprising a suction line (15) and a return line (16), which functionally are arranged parallel to each other between the pump (9) and the tank (3), wherein a first filter module (17) is arranged on or in the suction line (15), wherein the operating fluid can be pumped back to the tank (3) past the first filter module (17) via the return line (16), wherein a shut-off valve (6), preferably designed as a ball check valve (7), is arranged on or in the suction line (15),which prevents the operating fluid from being pumped back through the suction line (15), wherein, functionally speaking, a second filter module (26) is arranged between the feed pump (9) and the discharge point (4).

The utility model relates to an unpowered automatic pump filling device. A liquid level meter is mounted on the liquid storage tank; a liquid inlet pipe is arranged between the bottom of the self-guiding tank and the centrifugal pump, a liquid outlet pipe is arranged at the outlet end of the centrifugal pump, and a backflow pipe is further arranged between the liquid outlet pipe and the self-guiding tank in parallel. The automatic exhausting and pump filling functions under the unpowered condition can be achieved through linkage cooperation of the self-guiding tank, the guide pipe, the floating ball and the limiting plate of the device, when the liquid level of the self-guiding tank rises, the floating ball can rise along with the rising of the liquid level, at the moment, gas in the guide pipe can be naturally exhausted through the exhaust pipe, and the self-guiding tank is protected. And gas in the self-guiding tank can be exhausted through the vent hole, the opening and the exhaust pipe in sequence, and during the period, fluid flows into the liquid inlet pipe through the return pipe and fills the outlet end of the centrifugal pump, so that the inlet end and the outlet end of the centrifugal pump are ensured to be completely filled with the liquid, manual operation is not needed, and the working efficiency and the safety are greatly improved.

The present invention relates to an implantable device for improving the pump function of the heart of a human patient by applying an external force on the heart muscle. The implantable device comprises at least one implantable pump device comprising: A fluid, A first reservoir having a first volume and at least one movable wall portion, for varying said first volume, and A second reservoir being in fluid connection with said first reservoir. Wherein said implantable pump device is adapted to allow free flow of fluid between said first reservoir and said second reservoir, and wherein said first reservoir, said second reservoir and said fluid connection forms a fully implantable closed pump device, and wherein said fully implantable closed pump device is adapted to transfer force from said first reservoir to said second reservoir.