59 results about "Perfusion Pump" patented technology

The invention disclosed in this document presents a novel direct in-scope suction system designed for the retrieval of calculus fragments within the body. This system comprises two key components: a calculus fragments retrieval device and a pump unit. The calculus fragments retrieval device features a body with a single working channel that includes both an irrigation port and a suction port, which are connected to respective irrigation and suction pumps via elastomer-based rubber tubes. This setup allows for the controlled infusion of saline solution into the body lumens during lithotripsy procedures, ensuring clear visibility and fragment clearance. The retrieval device includes a trigger lever connected to a pincher tab. When the operator presses the trigger lever, the suction port is opened by releasing the pinched suction tube, increasing pressure inside the body.

The invention discloses an organ mechanical perfusion system which comprises a liquid storage container used for storing perfusion liquid; the perfusion pump is used for extracting the perfusion liquid in the liquid storage container and perfusing the organ through the perfusion pipeline; the oxygenator is used for oxygenating perfusate and organs; the temperature control module is used for maintaining the temperature of the organ and the perfusate in a set range; the main control module is used for controlling the perfusion pump and the temperature control module according to the perfusion parameters, controlling the temperature control module to place the organ in a low-temperature state in a first time period, and controlling the perfusion pump to stop perfusion action or perform slow perfusion action in the low-temperature state so as to enter a maintenance stage; and in the second time period, the temperature control module is controlled to place the organ in a normal temperature or sub-normal temperature state, and the perfusion pump is controlled to execute normal perfusion action in the normal temperature or sub-normal temperature state, so that a normal perfusion stage is started. Wherein the maintenance stage of the first time period and the normal perfusion stage of the second time period can be alternately carried out.

The utility model belongs to the technical field of organ transplantation auxiliary equipment, and particularly relates to an animal organ perfusion system and equipment. The animal organ perfusion system comprises a temperature control pipeline loop and at least one perfusion pipeline loop. The perfusion pump, the filter, the oxygenator, the bubble remover, the flow sensor, the pressure sensor and the organ chamber are sequentially connected through the perfusion pipeline. The temperature control pipeline loop comprises a circulating liquid pipeline, and a temperature control device, a temperature sensor, a circulating pump and a bathtub which are sequentially connected through the circulating liquid pipeline. Wherein the bathtub is used for containing circulating liquid, the temperature control pipeline loop is used for regulating and controlling the temperature of the circulating liquid, and the organ chamber is arranged in the bathtub so as to be capable of exchanging heat with the circulating liquid. The animal organ perfusion equipment provided by the utility model is provided with the animal organ perfusion system so as to realize automatic perfusion of organs of small animals. The device is relatively miniaturized, the manufacturing cost is relatively low, and the cost of the small animal organ perfusion experiment is relatively low.

The invention relates to perfusion pump equipment applied to intra-articular flushing and a control method. The method comprises the steps that a liquid injection pump is driven by a liquid injection pump driving circuit to inject medical flushing liquid into an operation cavity; a pressure sensor is used for collecting real-time expansion pressure in the liquid injection process of the liquid injection pump; the difference value between the real-time expansion pressure and the set expansion pressure is calculated; calculating control parameters of the liquid injection pump by combining the difference value, the historical accumulated difference value and the difference value change trend; based on the control parameters, the flow speed of the liquid injection pump injected into the surgical cavity is adjusted through the liquid injection pump driving circuit. By dynamically regulating and controlling the liquid injection pump, the expansion pressure is kept stable, the problem of pressure fluctuation caused by intermittent liquid injection in the prior art is avoided, the surgical space and the surgical field definition can be effectively maintained, and the risk that air enters an articular cavity and causes embolism is reduced.

The invention relates to the field of medical equipment, in particular to a high-precision temperature control system with weighing and heating functions for a body cavity hyperthermia perfusion therapy machine. The system comprises a peristaltic pump control device, a high-precision temperature measurement probe, a temperature acquisition device, a microwave cavity, a microwave power acquisition device, a microwave power output module, a weighing detection device, a control system and a computer. The peristaltic pump control device comprises a filling pump, a circulating pump and a draw-off pump and is used for controlling liquid medicine to flow; the weighing detection device is arranged below the microwave cavity and is used for detecting the weight of liquid in the medicine bag; and the microwave power acquisition device and the output module control microwave energy. According to the system, the temperature, the flow and the microwave power are accurately controlled, accurate regulation and control of body cavity hyperthermia perfusion treatment are achieved, and the treatment effect and safety are improved.

The utility model discloses an endoscope cleaning filter which comprises a cleaning connector and a filtering component. The cleaning connector is connected with a suction tube of a perfusion pump, the filtering component is directly or indirectly connected with the cleaning connector, and filtering holes are formed in the filtering component. The cleaning connector is provided with an inner connector connected with a suction tube of the perfusion pump. The filtering component is detachably connected with the cleaning connector through a threaded connection structure. The endoscope cleaning filter can filter cleaning liquid, then the cleaning liquid is introduced into an endoscope, and the cleaning effect of the endoscope is guaranteed.

The present invention discloses a medical perfusion pump pressure and flow monitoring device, comprising a pressure measuring component and a sensor assembly, wherein the pressure measuring component has a diaphragm mounting seat with a built-in pressure measuring base cavity, and the pressure measuring base cavity can be used for the inflow and outflow of perfusion fluid, the diaphragm mounting seat is provided with two pressure measuring notches connected to the pressure measuring base cavity on the outer wall and along the flow direction of the perfusion fluid, and each pressure measuring notch is respectively closed by a pressure measuring diaphragm, and the pressure measuring base cavity is provided with a throttling hole between the two pressure measuring notches to reduce the cavity cross-section, and the sensor assembly has a pressure sensor that corresponds to and measures pressure with the two pressure measuring diaphragms in a one-to-one manner, and by combining a dual-point pressure measurement design with a throttling hole pressure differential flow measurement design, the problem of low reliability caused by single-point pressure measurement can be avoided, and real-time flow monitoring can be synchronously completed without the need for an additional flow sensor, ultimately helping doctors to accurately control perfusion parameters, optimize the clarity of the surgical field of view, and improve surgical safety.

The application provides a blood pressure data acquisition mechanism, an electronic device, a medical catheter and an ablation system, which comprises a pressure sensor, a first valve, a second valve and a fluid passage, the opening and closing states of the first valve and the second valve are opposite; one end of the first valve is connected with the fluid passage, the other end of the first valve is used for being connected with a perfusion pump, when the first valve is in an open state and the second valve is in a closed state, the perfusion pump is connected with the fluid passage in communication to provide perfusion liquid to the fluid passage; the pressure sensor is connected with the fluid passage through the second valve, when the second valve is opened and the first valve is in a closed state, the pressure sensor is connected with the fluid passage in communication to acquire blood pressure data in a blood vessel where a target target point is located. The application can accurately acquire blood pressure data in the blood vessel while reducing damage in a surgical process, thereby laying a good foundation for realizing targeted ablation.

1. The name of the design product: perfusion pump. 2. The use of the design product: The design product belongs to the field of medical devices, and is used to realize liquid perfusion of electrophysiological catheter and the like. 3. The design points of the design product: in shape. 4. The picture or photo best indicating the design points: perspective view 1.

The present invention relates to a medical instrument, and in particular, to a flexible electronic endoscope with a built-in peristaltic pump. The technical problem to be solved by the present invention is that current flexible electronic endoscopes themselves do not have the function of pressurized perfusion, resulting in the problems of limited space and poor portability when externally connected to perfusion pumps and externally connected to negative pressure pipelines. The present invention provides a flexible electronic endoscope with a peristaltic pump built into a handle. A lavage pipe of the endoscope is provided with a small peristaltic pump, both ends of a pump tube of the peristaltic pump are connected to the lavage pipe, and the pump tube forms a part of the lavage pipe. In this way, the flexible electronic endoscope is allowed to have an independent pressurized perfusion function.

The invention relates to the technical field of endoscopes, and particularly discloses a switching structure and an endoscope, the switching structure comprises a first switching piece, a second switching piece and a transition tube, the first switching piece is provided with a perfusion hole and a suction hole, the second switching piece is provided with a first hole, a second hole, a first transition hole and a second transition hole, and the first transition hole is communicated with the second transition hole. The two ends of the transition pipe are connected with the first transition hole and the second transition hole respectively, the first adapter and the second adapter are rotationally matched, so that the filling hole can be communicated with any one of the first hole and the second hole, the suction hole is communicated with the other one, and in the rotating switching process, the filling hole is communicated with the first transition hole, and the suction hole is communicated with the second transition hole. The suction hole is communicated with the second transition hole; the first transition hole and the second transition hole are connected through the transition pipe to form a bypass independent of the perfusion channel and the suction channel, so that continuity of perfusion action and suction action is guaranteed, and damage to the perfusion pump and the suction pump due to sudden change of the perfusion channel and the suction channel is avoided.

This invention relates to the field of medical devices, specifically a method for eliminating air bubble interference in an infusion pump and the infusion pump itself. The invention flushes the tubing with a high-flow-rate liquid. By identifying the voltage characteristics of air bubble monitoring during the flushing process, the air bubbles in the tubing are expelled while the air gap between the tubing and the mounting slot is eliminated, thus preventing interference from air gaps in the tubing. The tubing is then continuously monitored using a reference voltage after interference elimination, thereby achieving air bubble monitoring within the tubing. In subsequent use, an alarm or warning is issued upon detecting an air bubble, and the system re-enters the preparation phase. This effectively eliminates the influence of air gaps, enabling effective tubing monitoring and ensuring the safe use of the infusion pump.

The application relates to a perfusion guide device, a method, a ventricular assist system, a storage medium and equipment for a ventricular assist device, which comprises a pressure detection module, a state judgment module and an auxiliary confirmation module, wherein the pressure detection module is used for detecting the pipeline pressure after at least one pipeline exhaust operation is completed, the state judgment module is used for comparing the detected pressure value with a preset threshold value to identify the leakage or blockage state of the pipeline, and the auxiliary confirmation module is used for instructing to disconnect the connection between the perfusion pump and the catheter pump when it is confirmed that the reason for excluding the pipeline blockage cannot be confirmed, and is also used for controlling the infusion motor to drive the perfusion pump to operate at a preset rotating speed for a preset auxiliary confirmation time period, and judging whether the blockage is located in the perfusion pump pipeline or the catheter pump pipeline based on whether the measured pressure value during the operation exceeds the preset threshold value.

Systems and methods for performing transcanal ear surgery. A volume of fluid is maintained within the ear canal to provide a flooded environment. A cutting member of a cutting instrument is submerged and operated within the flooded environment to resect tissue within the ear. A reservoir system may be coupled to the patient to facilitate providing the flooded environment. The reservoir system at least partially surrounds the auricle of the ear in fluid-tight sealing engagement with the head of the patient. An irrigation pump and a suction source on one or both of the reservoir system and the cutting instrument are operated to provide the flooded environment. The reservoir system includes an access opening sized to receive one or more surgical instruments, for example, the cutting instrument and an endoscope. The flooded environment improves cooling of the surgical site and visualization of the surgical site from the endoscope.

A portable ultrasonic debridement positive-pressure lavage negative-pressure drainage device comprises a body, a miniature ultrasonic transducer, a power source, a controller, a positive-pressure perfusion pump and a negative-pressure suction pump, the power source, the controller, the positive-pressure perfusion pump and the negative-pressure suction pump are arranged in the body, the power source is electrically connected with the controller, the controller is connected with the miniature ultrasonic transducer through a first wire, and the miniature ultrasonic transducer is connected with the negative-pressure suction pump through a second wire. The controller is electrically connected with the positive-pressure perfusion pump and the negative-pressure suction pump, supplies power to the miniature ultrasonic transducer, the positive-pressure perfusion pump and the negative-pressure suction pump, controls the miniature ultrasonic transducer, the positive-pressure perfusion pump and the negative-pressure suction pump and controls the miniature ultrasonic transducer, the positive-pressure perfusion pump and the negative-pressure suction pump to work; four-channel cleaning of double-positive-pressure liquid inlet and double-negative-pressure liquid outlet is combined with high-low-frequency ultrasonic super debridement, the flushing coverage rate of a deep complex anatomical area is remarkably increased, bacterial biofilms stubborn attached to the surface of a prosthesis are effectively damaged and removed, residual infection sources are greatly reduced, and the effect of cleaning the surface of the prosthesis is achieved. The prosthesis is protected, and the rehabilitation of the patient is accelerated.

The utility model provides an assembly structure suitable for a perfusion pipeline on a perfusion pump, and relates to the field of medical instruments, the assembly structure comprises a main panel, the main panel comprises a display area and a pipe fitting installation area; a rotating piece, a first mounting block and a second mounting block which are in contact in sequence are arranged in the pipe fitting mounting area, and the first mounting block is located between the rotating piece and the second mounting block; a first mounting groove and a second mounting groove are formed in the first mounting block, and a third mounting groove is formed in the second mounting block; the third mounting groove, the second mounting groove, an extrusion channel formed by the rotating part and the first mounting groove are sequentially combined to form a pipe flow channel for mounting an external pipeline; and a cover plate used for covering the third mounting groove is arranged on the second mounting block. The perfusion pump has the advantages that the perfusion pipeline can be better installed on the perfusion pump, and the possibility of mistaken touch is reduced.

The invention discloses a multifunctional pipeline system based on full-flow automatic control well cementation equipment, which comprises a pressurizing flow path communicated with an inlet of a metering tank, an inlet of a filling pump and an inlet of a plunger pump and used for pressurizing liquid when prepad fluid and displacement slurry are pumped; the self-suction flow path is communicated with a discharge port in the bottom of the slurry mixing tank and an inlet of the plunger pump and is used for realizing self-suction of the cement slurry by utilizing the liquid level difference; the unblocking flow path is communicated with the slurry mixing tank and the circulating pump, returns to the bottom of the slurry mixing tank, is communicated with the slurry mixing tank and the filling pump, returns to the bottom of the slurry mixing tank, and is used for carrying out backflushing unblocking on the cement slurry deposited at the bottom of the slurry mixing tank; and the backwashing flow path is communicated with inlets of the metering tank, the injection pump and the plunger pump and is used for carrying out high-pressure backwashing on the slurry pipeline. By means of integrated pipeline design and linkage control of the electric control valve, one-button type automatic switching of the construction process is achieved.

The invention relates to the technical field of medical instruments, in particular to an inner ear drug delivery device.An injection unit comprises a pressing rod arranged on an injector in a sliding mode, a positioning plate is fixedly arranged at the output end of the injector and fixedly connected with a first catheter, and a catheter connector is fixedly arranged at the other end of the first catheter; a protective shell is fixedly arranged on the catheter connector and located at the axis of the catheter connector, and during use, a worker holds the first catheter with a hand to put the catheter connector with the protective shell into the ear of a patient, and the protective shell is slowly stuffed into the ear until the protective shell reaches a preset position; air is injected into a cavity between the first catheter and the second catheter through the air delivery pipe of the device through the air pump on the injection pump, the air enters the catheter connector, the catheter connector is made of soft rubber materials, at the moment, the catheter connector swells slightly, and the catheter connector can be attached to the ear along with expansion of the catheter connector. And the catheter joint can be positioned on the premise of keeping the patient unusual.

The application discloses a spine positioning guide system and relates to the technical field of medical devices, which comprises a moving frame, a power box is embedded and installed on the moving frame, and a multifunctional perfusion pump, a general-purpose power planing system, a multifunctional high-frequency system, a light source system and a spine minimally invasive navigation system are sequentially installed on the left side of the moving frame from bottom to top. When the horizontal angle of the upper guide ring, the lower guide ring and other components needs to be adjusted, a No. 1 motor, a No. 1 rack and a No. 1 gear are arranged, the No. 1 motor can be driven, the No. 1 motor can drive two rotating rods to rotate synchronously, the two rotating rods can drive corresponding No. 1 gears to rotate, the two No. 1 gears can drive corresponding No. 1 racks to slide, the No. 1 racks can drive corresponding arc-shaped frames to slide, the two arc-shaped frames can drive the upper guide ring, the lower guide ring and other components on the two side frames to deflect, the guide angle can be preliminarily adjusted, and the operation is convenient.

The utility model relates to a taurine filling device which comprises a filling structure and a bottle discharging mechanism, the filling structure comprises a conveying belt, a first guide rail and a second guide rail, the conveying belt is used for conveying liquid bottles, and the first guide rail and the second guide rail are arranged above the conveying belt. A first channel and a second channel which are adjacent in parallel are branched on the second guide rail, only one liquid containing bottle can pass through the first channel and the second channel in sequence, a filling head for filling taurine liquid is arranged above the second guide rail, and the filling head is connected with a filling pump through a pipeline; the bottle discharging mechanism comprises a horizontal working platform, the working platform is provided with an axial vertical bottle feeding rotating disc, the discharging side of the bottle feeding rotating disc is provided with a conveying belt assembly and a bottle pushing assembly, and the bottle pushing assembly is composed of an upper push rod located above the bottle feeding rotating disc and a lower push rod located below the bottle feeding rotating disc. The upper push rod and the lower push rod are driven by the driving assembly to do reciprocating translation between the discharging side of the bottle conveying rotary disc and the feeding side of the conveying belt assembly. According to the utility model, the overflow phenomenon caused by inaccurate filling position is avoided, and the bottle is not easy to topple over when being discharged.

The utility model discloses a filling pump capable of switching a pressure detection range. The filling pump comprises a pump body, a water inlet fixing piece arranged on the pump body, a water outlet fixing piece arranged on the pump body, a guiding shaft which is arranged on the pump body and is of a columnar structure, and a thin film pressure sensor assembly arranged on the water outlet fixing piece. The thin film pressure sensor assembly comprises at least two thin film pressure sensors and sensor isolation blocks for isolating the adjacent thin film pressure sensors, and the sensor isolation block close to the inner side is tightly attached to the water outlet. The large-range detection requirement is met through the thin film pressure sensor assembly composed of the thin film pressure sensor and the sensor isolation block, and the purposes of improving the adjustability of the detection range of the filling pump and improving the use universality of the filling pump are achieved.

The application discloses an ex vivo organ perfusion system with active refrigeration, and belongs to the field of organ preservation, which comprises a preservation box, a preservation device, a refrigeration device and a perfusion device; the preservation device comprises a cold cavity and a liquid storage cavity arranged in the cold cavity; the cold cavity is internally stored with a cold accumulator and is connected with a cold release end of the refrigeration device, and the liquid storage cavity is filled with a perfusion liquid; the perfusion device comprises a perfusion pump and a bubble chamber, the liquid storage cavity and the bubble chamber are connected through an injection pipe, a flushing pipe and a perfusion pipe, the perfusion pump is connected in series on the injection pipe, and the end of the perfusion pipe is connected with an ex vivo organ; a temperature sensor and a controller are further arranged in the preservation box, a bubble sensor is arranged on the injection pipe and the perfusion pipe, a control valve is arranged on the flushing pipe and the perfusion pipe, and the controller is electrically connected with the temperature sensor, the refrigeration device, the perfusion pump, the control valve and the bubble sensor. The application can maintain the temperature stability of the ex vivo organ and avoid air damage, thereby realizing long-distance and long-time transportation.

The invention provides an array micropore micro-fluidic chip, a Z-axis optical tweezers sorting device and a sorting method, and belongs to the technical field of emerging crossing of materials, optics and biomedical engineering.The chip is formed by bonding a PDMS layer and a glass slide; a plurality of groups of parallel microfluidic channels are arranged on the PDMS layer at equal intervals, a plurality of micropores with the same size and shape are formed below each group of microfluidic channels at equal intervals, through holes in the Z-axis direction are punched in the positions, corresponding to glass slides, of the two ends of each group of microfluidic channels, the left side serves as a sample inlet and is used for being connected with a pipette or an infusion pump, and the right side serves as a sample outlet and is connected with a capillary tube. Synergistic interaction of micropore confinement and optical tweezers control is achieved for the first time, and a new normal form is provided for design of a single cell sorting system combining optical tweezers and microfluidics. Experiments for successfully sorting yeast and human non-small lung cancer cells (PC-9) prove that the method has application potential in the fields of rare cell analysis, immunotherapy evaluation and the like.

The invention relates to a pressure monitoring method and device, liquid filling equipment, a liquid filling system and a storage medium. The method comprises the steps that a pressure signal of perfusion liquid in a perfusion pump pipe is collected through a sliding sampling window, and the pressure signal is a signal obtained by conducting pressure monitoring on the perfusion pump pipe under the condition that the perfusion liquid flows in the perfusion pump pipe; performing data analysis on the pressure signal collected under the sliding sampling window, determining a pressure characteristic value under the sliding sampling window, and storing the pressure characteristic value as an intermediate pressure characteristic value in a target cache; and determining pressure monitoring data of the filling pump pipe according to each intermediate pressure characteristic value in the target cache.

The invention discloses an intelligent lithotripsy driving system with a temperature and pressure measuring mirror combined with a perfusion pump and a suction pump, and relates to the technical field of medical instruments, the intelligent lithotripsy driving system comprises a matched image processor box and the perfusion pump, and the suction pump is arranged in a matched image processor. The electronic temperature and pressure integrated sensor is packaged at the head end of the electronic endoscope, so that pressure and temperature in the body can be monitored and fed back in real time; the matched image processor comprises a perfusion pump and a suction pump, and can control the perfusion pump and the suction pump to perform intelligent perfusion and suction according to comparison between real-time pressure and temperature values of the head end and expected set values; an independent guide wire guide channel, a water injection channel and a suction channel are contained in the electronic endoscope, infusion and suction can be independently controlled, and the situation that the electronic endoscope enters a human body to repeatedly use a guide sheath is avoided; on the basis of embedded image processing device software built in a matched image processing device, it can be ensured that the pelvis pressure in the human body is always kept at 30 mmHg.

The embodiment of the invention discloses a temperature and pressure perfusion control method and device based on multi-parameter fusion and a medium, and relates to the technical field of medical equipment control, and the method comprises the following steps: detecting a surgical process starting signal, entering a surgical execution state when the surgical process starting signal is detected, collecting multi-source sensor data in the surgical execution state, and sending the multi-source sensor data to the medical equipment; the temperature and pressure filling state is monitored, and the current temperature and pressure state is determined; when the current temperature and pressure state is a safe state, determining an effective operation cavity predicted volume based on the in-vivo pressure data and the in-vivo temperature data so as to adjust a preset intraoperative pressure control target value according to the effective operation cavity predicted volume and generate a perfusion pump flow control instruction; according to the perfusion pump flow control instruction and the heating temperature data, temperature compensation is carried out on an intraoperative target temperature set value preset by the heating device, and a heating control instruction is generated so as to control the perfusion pump and the heating device to execute corresponding perfusion and heating operations.

The application relates to a perfusion control method, device, system, computer equipment and storage medium, wherein the method comprises the following steps: determining whether a perfusion system and a weighing system are associated; entering an association mode when the perfusion system and the weighing system are associated; acquiring the liquid weight of cell culture solution through the weighing system in the association mode; determining a first control signal of a perfusion pump according to the liquid weight, a preset perfusion weight and a preset dead zone weight; processing a preset perfusion flow rate to obtain a first target flow rate based on the flow rate limitation condition of the perfusion pump; and controlling the perfusion of the cell culture solution according to the first control signal and the first target flow rate. Through the application, the problem that data tracking and recording cannot be realized and the perfusion effect is influenced by human factors is solved, the perfusion system and the weighing system are associated, data tracking and recording can be realized, and the influence of human factors on the perfusion effect is reduced.

The application relates to a perfusion control device, method, ventricular assist system, storage medium and equipment for a ventricular assist device, which comprises a pressure detection module, a state judgment module and a perfusion control module connected in communication, wherein the pressure detection module is configured to detect pipeline pressure during perfusion, the state judgment module is configured to determine a current perfusion state based on a comparison result of the pipeline pressure and a preset pressure threshold, generate a corresponding adjustment instruction, the perfusion control module is configured to dynamically adjust perfusion parameters according to the adjustment instruction, the perfusion parameters include infusion motor speed and / or infusion flow, and the perfusion control module is further used for controlling the perfusion pump to perform perfusion operation according to the adjusted perfusion parameters, so that the pipeline pressure is maintained within a preset pressure range.

This invention provides an ophthalmic surgical apparatus and cassette capable of appropriately suppressing the effects of pulsation caused by a peristaltic pump. The ophthalmic surgical apparatus includes an infusion path, a peristaltic infusion pump, and an infusion fluid reservoir. The infusion path allows infusion fluid supplied from an infusion fluid source to pass through to surgical instruments. The peristaltic infusion pump is located within the infusion path and changes the pressure within the path by utilizing multiple pump rollers that rotate while pressing against the flexible infusion path. The infusion fluid reservoir is located in the path between the peristaltic infusion pump and the surgical instruments, storing the infusion fluid with an airtight interior.

A method for priming of a pump in response to a priming condition includes confirming that the liquid level in the reservoir is located at the same level or above the upper portion of the impeller, driving the impeller in a reverse direction of rotation for a time duration between 2 seconds and 5 seconds, stopping the impeller from rotating in the reverse direction of rotation, driving the impeller in a forward direction of rotation, detecting, during the forward operation of the impeller, whether too much gas is present in the volute, and in response to detection of too much gas in the volute, stopping the impeller from rotating in the forward direction of rotation and driving the impeller in the reverse direction of rotation, and in response to non-detection of too much gas in the volute, exiting the priming of the pump.