48 results about "Fluid level" patented technology

Systems and methods for detecting damage to a bladder for controlling fluid levels in an oil reservoir of a power transformer include a bladder sleeve. The bladder sleeve includes an inner elastomer layer defining an interior of the bladder sleeve; an outer elastomer layer limiting flow of liquids into the interior of the bladder sleeve; and a middle layer disposed between the inner elastomer layer and the outer elastomer layer, the middle layer including carbon nanotube windings having electrodes attached to opposite ends of the carbon nanotube windings, the carbon nanotube windings having a resistance that changes in response to damage to the bladder.

A negative pressure wound therapy system can include a fluid level detection circuitry positioned in a canister. The fluid level detection circuitry can include a pair of electrodes and a logic circuitry configured to detect fluid level based on one or more signals from the pair of electrodes. The logic circuitry can be protected and isolated from the patient's body to prevent flow of any leakage current through the patient's body using one or more approaches disclosed herein.

This invention relates to the field of cochlear basilar membrane anatomy technology with integrated microscopic vision, and discloses an integrated microscopic cochlear basilar membrane anatomy instrument platform, including a fixing mechanism fixedly connected to the inner wall of the groove to reduce the height difference between the liquid and the outlet during liquid extraction. A storage mechanism rotatably connected to the inner wall of the fixing mechanism stores the liquid. A deceleration mechanism fixedly connected to the outer wall of the fixing mechanism slows down the movement speed of the device. This prevents hydrostatic pressure loss as the liquid level drops, which would result in insufficient initial force for the liquid to enter the outlet tube, slowing down the liquid delivery efficiency, preventing timely replenishment of the physiological solution, causing osmotic pressure imbalance in the sample, and ultimately deforming the sample, rendering it unusable.

The application discloses a urea tank liquid level height monitoring system and a testing method, two sets of sensing systems are installed in the urea tank to read and store liquid level height data of left and right sides of the urea tank in real time; by processing and analyzing the liquid level height data, the current urea tank state can be determined according to the variance of the liquid level height series difference value, such as liquid adding, normal use, abnormal liquid leakage, shaking and serious shaking; the liquid level height data is processed according to the proposed algorithm to obtain the current liquid level height result. The application can reduce the measurement error and still obtain a relatively accurate urea tank liquid level height under severe shaking; the application can determine various states of the urea tank, and only alarms in the case of abnormal liquid leakage, thereby reducing the triggering of the alarm signal under the working conditions such as uphill and downhill, and ensuring the normal driving of the vehicle.

To improve the convenience of managing liquid levels. [Solution] The liquid level measurement system comprises a transmitter 1 that transmits a signal that reaches within a predetermined distance range; a float 2 that floats on the surface of the liquid whose change is to be measured and has the transmitter 2 placed inside it; a receiver 3 that detects the distance h from the transmitter 1 by receiving the signal transmitted from the transmitter 1, which is placed inside the float 2, while the float 2 is floating on the surface of the liquid; and a measuring device 4 that measures the liquid level H on the surface of the liquid based on the distance h detected by the receiver 3 and outputs information based on the liquid level H.

The invention discloses a thoracic closed drainage device, which relates to the technical field of medical instruments, and comprises a drainage tube, a drainage bottle, a connecting tube and a water seal bottle, the drainage tube is communicated with the thoracic cavity and the drainage bottle, the connecting tube is communicated with the drainage bottle and the water seal bottle, and the drainage bottle and the water seal bottle are filled with water seal liquid. The end, connected with the drainage bottle, of the drainage pipe is located below the liquid level of the water sealing liquid, the end, connected with the water sealing bottle, of the connecting pipe is located below the liquid level of the water sealing liquid, and the water sealing bottle is communicated with a negative pressure suction device. The protection mechanism comprises a shell used for containing the drainage bottle and the water seal bottle, a main supporting column and an auxiliary supporting column are arranged in the shell, a first ring body is rotationally arranged between the main supporting column and the auxiliary supporting column, a second ring body is rotationally arranged on the inner circle of the first ring body, and the rotating axis of the first ring body and the rotating axis of the second ring body are perpendicularly crossed.

The invention belongs to the technical field of drainage instruments, and particularly relates to a chest bottle capable of pre-flushing liquid for closed drainage of thoracic cavity, which comprises a collecting bottle, a water sealing bottle and a negative pressure adjusting bottle which are integrated together and are communicated together through a negative pressure drainage pipeline assembly, and also comprises a partition plate fixed in the water sealing bottle, a partition plate is arranged in the water seal bottle and divides the water seal bottle into a liquid accumulation cavity and a standby cavity, a main liquid inlet pipe is fixedly inserted into the liquid accumulation cavity, an auxiliary liquid inlet pipe is fixedly inserted into the standby cavity, and an exhaust hole is formed in the upper cavity wall of the standby cavity. The device can realize gas-liquid diversion, adjustable negative pressure and efficient and stable drainage, drainage does not need to be interrupted when flushing liquid is replaced or effusion is discharged, excessive discomfort of a patient is avoided, meanwhile, standby drainage can be automatically started when negative pressure blockage occurs, excessive shaking of the liquid level is monitored and prompted, abnormal rising of the liquid level of a standby cavity is alarmed, and the drainage effect is improved. And the use safety of the device is further improved.

The utility model discloses a postpartum hemorrhage nursing device convenient for metering the hemorrhage amount. The postpartum hemorrhage nursing device comprises a waterproof pad, a catheter and a blood collecting bottle, the upper end face of the waterproof pad forms a liquid guide slope surface which is obliquely arranged towards the lower rear portion, a left liquid blocking protection edge A is arranged on the liquid guide slope surface from the left middle portion to the rear middle portion of the liquid guide slope surface, a right liquid blocking protection edge A is arranged on the liquid guide slope surface from the right middle portion to the rear middle portion of the liquid guide slope surface, and a liquid drainage groove is formed between the rear end of the left liquid blocking protection edge A and the rear end of the right liquid blocking protection edge A; the first end of the catheter is connected to the drainage groove, and the second end is connected to the top of the blood collection bottle; the outer wall of the blood collection bottle is provided with containing marks. The beneficial effects of the utility model are that under the diversion of the drainage slope and the guidance of the left and right liquid-blocking protective edges A, the blood from the private part of the puerpera after delivery can be drained to the drainage groove and flows to the blood collection bottle along the drainage tube, and medical staff can estimate the bleeding amount by observing the volume scale corresponding to the liquid level of the collected blood, so that the physical state of the puerpera can be evaluated conveniently; therefore, a doctor can diagnose and treat the body of the puerpera.

The utility model discloses a tool for measuring the liquid level width of fluid in a circular pipeline. The tool comprises a first measuring piece and a second measuring piece, the first measuring piece comprises a first supporting leg, a second supporting leg, a hinging device, a telescopic sleeve rod and a measuring flexible rule, the first supporting leg and the second supporting leg are hinged to the hinging device, a first hinging part is fixed to the first supporting leg and the second supporting leg, the telescopic sleeve rod is fixedly connected to the bottom of the hinging device, and the telescopic sleeve rod comprises a fixed rod and a telescopic rod; the telescopic rod is embedded in the fixed rod, the second hinge part is connected with the first hinge part, and the measuring tape is engraved with uniform scales and is fixed on the telescopic sleeve rod; the second measuring piece comprises a plurality of stainless steel round pipes which are detachably connected and provided with scales, and the stainless steel round pipe on the topmost layer penetrates through the telescopic rod and the fixed rod and is connected with the bottom of the hinging device. The fluid sectional area measuring device can be suitable for fluid sectional area measurement under various pipe diameters, and is wide in application range and convenient to carry.

Systems and methods are providing for detecting and monitoring thoracic fluid, air-trapping and ventilation assessment in real time, wherein data obtained from a non-invasive electrode patch is analyzed using analysis algorithms for an electrical equivalent model that have been personalized for a patient's physiologic characteristics, medical condition and / or historical medical information using machine learning trained on a dataset representative of a large and diverse patient population. The systems and methods provide a simple, real-time, highly sensitive and specific, non-invasive, bedside solution for fluid level assessment, checking for increased air trapping, and ventilation assessment. The described methods include a variety of use cases for the inventive system and methods.

The invention provides a float type liquid level monitoring method and device, a medium and a product. According to the method, a control processing unit firstly obtains preset parameters of a floater, initial liquid density and a real-time height value of a height sensor, and a basic data system is constructed for subsequent calculation. And the control processing unit generates a reaction rate curve by using the initial liquid density and the chemical reaction rate equation, and deduces a curve of the mixed liquid density along with the time change through the reaction rate curve, so that the pre-judgment of the dynamic change of the liquid density is realized. Then, the control processing unit calculates the immersion depth in combination with the current density and floater parameters, the liquid level distance is obtained through the distance difference between the height sensor and the bottom of a floater, and finally the actual liquid level is calculated based on the real-time height of the sensor and the liquid level distance. According to the method, the density change is dynamically tracked, errors caused by the immersion depth of the floater are corrected in a targeted mode, the problem of monitoring deviation caused by the density dynamic change is effectively solved, and the accuracy of liquid level monitoring is improved.

The invention discloses a portable surgical drainage device, and belongs to the technical field of surgical drainage. Comprising a drainage assembly, an anti-overflow assembly and a self-compensation assembly. The drainage assembly is used for draining and guiding out effusion in the thoracic cavity of a patient, the anti-overflow assembly is used for preventing the effusion in the collecting bottle from overflowing, and the self-supplementing assembly is used for automatically supplementing liquid in the water sealing bottle. Liquid level monitoring-automatic supply is achieved through a second standing valve and a floating ball, the floating ball drives a rotating arm and a rotating pipe to adjust the angle along with descending of the liquid level of a water seal cavity, a through hole is aligned with a water outlet, liquid in a water tank automatically flows into the water seal cavity, a torsional spring drives the rotating pipe to reset to stop supply after the liquid level rises again, and manual intervention is not needed in the whole process; the water tank stores sufficient water seal liquid at a time and is in closed connection with the second fixed valve, so that the trouble of frequently adding liquid in an operation is avoided, the cleanliness of the liquid is guaranteed, air is prevented from flowing back to the thoracic cavity due to failure of the water seal, and the drainage safety is improved.

The invention relates to the field of bone specimen sampling, and discloses sampling treatment equipment for bone specimen sections.The sampling treatment equipment is characterized in that a section conveying box is arranged on a sliding bearing table, a protrusion is arranged on the sliding bearing table, a bearing piece abuts against the protrusion, and a third cavity is formed in the section conveying box; a bearing piece is arranged in the third cavity, the two sides of the bearing piece are connected with the inner wall of the third cavity, the bearing piece abuts against the bearing piece, the slice can fall on the bearing piece, after the slice falls, the bearing piece moves downwards, and when the bearing piece abuts against the sliding bearing table, the angle of the bearing piece is changed, and therefore the slice can fall off. Meanwhile, the slice floats on the liquid level, and when the second bearing plate moves upwards, the slice is attached to the glass slide, so that integration, high efficiency and stability of slicing, cleaning and collecting are realized.

The utility model provides a kind of perfusion bottle detection device, for cataract phacoemulsification instrument, perfusion bottle detection device includes support part and detection part, support part is used to place perfusion bottle, and detection part is used to detect the liquid level condition in perfusion bottle;Support part is the cylindrical structure with opening in side face and is surrounded to form a placement area, and perfusion bottle is placed in the placement area;Two sides of support part are all penetrated and are equipped with adjusting slide, two adjusting slides are symmetrically laid out, and detection part includes first detection piece and second detection piece, and first detection piece and second detection piece are respectively located in two adjusting slides and are slidably connected;In addition, first detection piece and second detection piece are connected by support band.

The invention relates to the technical field of computer vision, and discloses a blood culture specimen collection amount detection method and system based on computer vision, and the method comprises the following steps: image acquisition and three-dimensional attitude calculation; performing geometric correction on the image according to the three-dimensional attitude to obtain a corrected image; matching the corrected image with a preset bottle body geometric model, and performing liquid level identification and compensation according to a matching result; according to the compensation liquid level position and a preset bottle body geometric model, the blood sample volume is calculated, and the blood culture sample collection amount is output. According to the method, through a set of complete computer vision algorithm process, the limitation of a traditional manual method and the prior art in a complex actual scene is effectively overcome, the overall quality of blood culture is remarkably improved, and a reliable guarantee is provided for rapid and accurate diagnosis of blood flow infection.

The utility model relates to a monitoring device for pneumothorax, which comprises a drainage bottle comprising a bottle body and a bottle cap; the catheter penetrates through the bottle cap and extends to the position near the bottom of the bottle body, and the upper end of the catheter is connected to the drainage tube to drain liquid and / or gas in the thoracic cavity of the patient into the bottle body; the camera is arranged on one side of the drainage bottle to obtain an image; the image processing unit is connected with the camera and is used for receiving the image, processing the image to identify the liquid level in the guide pipe and the liquid level in the bottle body and generating a corresponding liquid level height data signal; and the signal processor is connected with the image processing unit and is used for outputting a height difference value between the liquid level in the guide pipe and the liquid level in the bottle body according to the liquid level height data signal in the guide pipe and the liquid level height data signal in the bottle body. The device can be used for pneumothorax treatment and can assist medical staff in monitoring the pressure in the pleural cavity and the treatment effect.

The in-vitro skin cryopreservation method comprises the following steps that S1, a certain amount of UW liquid is added into a base, and the liquid level is flush with a supporting plate 2; s2, the positions of a plurality of first clamping mechanisms are adjusted, and the in-vitro skin is placed on a supporting plate and makes contact with the first clamping mechanisms; s3, the positions of a plurality of second clamping mechanisms are adjusted, a top cover is aligned with the connection mechanism and pressed down, and the second clamping mechanisms and the first clamping mechanism clamp the edge of the in-vitro skin; s4, the adjusting mechanism is rotated, so that the first clamping mechanism and the second clamping mechanism slightly pull the in-vitro skin to extend towards the periphery; and S5, preserving the in-vitro skin in a sterile environment at the temperature of 4 DEG C or below.

The utility model discloses a confocal perforated plate for tube formation experiment, which comprises a base plate structure, accommodating hole structures and bulge structures, the accommodating hole structures are equidistantly arranged on the upper surface of the base plate structure, and the bulge structures are arranged at the bottoms of the inner walls of the accommodating hole structures. According to the confocal perforated plate for the tube forming experiment, self-leveling of matrigel is achieved through combination of micron-sized annular protrusion arrays designed at the bottoms of the holes and super-hydrophilic surface modification, the standard deviation of the thickness of a gel layer is controlled within + / -3 microns, and the height difference of the liquid level is reduced to lt through side wall gradient hydrophobic treatment (top hydrophobic / bottom hydrophilic); 0.1 mm, and halo artifacts in confocal imaging are eliminated.

The utility model discloses an integrated multi-angle guide puncture needle, which relates to the technical field of medical instruments and comprises a guide part, the guide part is provided with a handheld handle with a hollow structure, a connecting sleeve fixedly connected with one end of the handheld handle and a guide needle sleeve fixedly inserted with the connecting sleeve, and the handheld handle, the connecting sleeve and the guide needle sleeve form a puncture passage; the needle body is inserted into the puncture channel, and a C-shaped buckle is arranged on the outer wall of the angle calibrator and connected with the clamping part in a clamped mode. The angle calibrator is of a spherical hollow transparent structure, the angle calibrator is filled with filling liquid, a calibration plate floats on the liquid level of the filling liquid, and angle scale marks are arranged on the outer wall of the angle calibrator. According to the integrated multi-angle guide puncture needle, the angle calibrator which can be detachably connected with the puncture needle is arranged, so that the needle inserting angle value is displayed in real time when a puncture channel is established by medical staff, the needle inserting direction and angle can be accurately controlled, and the risk of increasing pneumothorax and bleeding complications due to the fact that the needle inserting angle is adjusted for multiple times is avoided.

The invention discloses a magnetic turning plate floater liquid level meter, and relates to the technical field of liquid level meters. A floater is installed in the liquid level pipe and is of a cup-shaped structure with an opening in the lower portion, a capsule is installed in the floater and adheres to the top of the floater, compressed air is filled in the capsule, a permanent magnet ring is embedded in the middle of the outer circle of the floater, and the outer circle of the permanent magnet ring is flush with the outer circle of the floater. Supporting assemblies are arranged on the outer circle of the floater and divided into an upper layer and a lower layer, and three supporting assemblies are evenly distributed on each layer along the circumference of the outer circle of the floater. The invention has the following beneficial effects: the capsule is installed in the floater, liquid enters the lower opening of the floater, and the weight of the floater, the permanent magnet ring and the capsule determines the compression degree of the capsule and the pressure of compressed air in the capsule so as to determine the height difference between the bottom surface of the capsule and the liquid level, which is irrelevant to the density of the liquid; therefore, the problem that reading errors exist when liquid with different densities is detected through an existing magnetic turning plate liquid level meter is solved.

The invention relates to the technical field of medical apparatus and instruments, and provides a liquid level detection anomaly detection method and a pipetting method, and the liquid level detection anomaly detection method is applied to a liquid level detection system. The liquid level detection system comprises a pipetting arm, a first sensor used for detecting the air pressure of a liquid injection needle on the pipetting arm and a second sensor installed on the pipetting arm and outputting a capacitance detection result, and is characterized in that the method comprises the steps that a first detection stage is executed, and a first liquid level detection height is obtained; executing a second detection stage to obtain a second liquid level detection height; according to the difference value between the second liquid level detection height and the first liquid level detection height, the liquid level detection abnormal condition of the target container is obtained; wherein the first liquid level detection height is obtained according to the air pressure value change in the first detection stage, and the second liquid level detection height is obtained according to the capacitance detection value change in the second detection stage. According to the invention, misjudgment caused by abnormal influence is avoided, and accuracy and reliability of liquid level detection are realized.

The utility model discloses a drainage liquid liquid level monitoring devices relates to drainage liquid monitoring technical field, including the drainage bag body, the drainage bag body inboard wall fixed mounting has the detection groove, the detection groove in top wall is provided with the electromagnetic button, still movably set up in the detection groove for the float assembly of triggering electromagnetic button, the detection groove is opened and is limited to the rail, the limit rail is linked together with the detection groove inside, the side of float assembly is provided with the limiting piece, the utility model discloses through setting float assembly, can conveniently detect the drainage liquid level in the drainage bag body, and simultaneously cooperate alarm can remind personnel to discharge when liquid level is too high and ring, through the setting of limit rail, limiting piece, guide and ball, can be driven ball in the limit rail rolling by float assembly, can change the sliding friction of sliding plate in the detection groove to rolling friction, reduces the friction, thereby makes the sliding plate smooth sliding, avoids the problem of movement interference, improves the detection effect.

The application discloses a liquid level measuring device, which comprises a reaction kettle, a first measuring assembly, a second measuring assembly and a control assembly. The first measuring assembly comprises a temperature transmitter and a protection tube. The temperature transmitter is arranged at the top of the reaction kettle. The protection tube is connected with the temperature transmitter. The end of the protection tube, which is far away from the temperature transmitter, extends to the reaction kettle along the height direction of the reaction kettle. A plurality of temperature sensing elements are arranged in the protection tube. The plurality of temperature sensing elements are connected with the temperature transmitter. The second measuring assembly is arranged at the top of the reaction kettle. The testing end of the second measuring assembly faces the inside of the reaction kettle, so that the liquid in the reaction kettle can be measured. The control assembly is connected with the temperature transmitter and the second measuring assembly respectively. The liquid level measuring device can realize the cooperation of contact type measurement and non-contact type measurement, realize the self-diagnosis and self-correction of liquid level measurement under complex conditions such as dielectric constant fluctuation, unstable temperature field and liquid surface disturbance, and improve the measurement precision.

The invention is suitable for the technical field of liquid quantitative adding, and provides an automatic constant volume instrument and an automatic liquid adding method based on the automatic constant volume instrument, and the constant volume instrument comprises a liquid adding module, a camera module and a controller. The liquid adding module is provided with a rapid pump and a precision pump, and liquid is added into the volumetric flask through a liquid adding needle tube with a lifting mechanism. And the camera module can be lifted and is kept at the same horizontal height with the scale mark of the volumetric flask when identifying the scale mark and judging the end point. The liquid adding method adopts a multi-stage strategy and comprises the following steps: firstly, adding a liquid level to a bottleneck area twice through a rapid pump; and then subsequent accurate adding is conducted through a precision pump, the amount of liquid to be added identified by the image is calibrated by means of a proportionality coefficient calculated based on previous liquid adding data, and finally the liquid is accurately added to scale marks through the precision pump. The problems of excessive liquid adding and low efficiency caused by liquid level fluctuation and image recognition delay in the prior art are effectively solved, and efficient, high-precision and reliable automatic volume fixing is achieved.

1. The name of the design product: wellhead fluid level tester. 2. The use of the design product: for testing the depth of liquid level. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. The top view has been shown in perspective view 1, the bottom view has been shown in perspective view 2, and the top view and the bottom view are omitted.

This invention relates to a method, system, and storage medium for dynamic monitoring of reagent balance. The method includes the following steps: scanning the barcode of the reagent bottle to obtain identification information; searching and matching pre-stored reagent information in a database; obtaining a first pressure value in the tubing above the bottle opening during liquid aspiration; controlling the reagent needle to move downward to detect the liquid level, detecting the capacitance value at a preset frequency during the movement; stopping the reagent needle movement when the capacitance value reaches a threshold, and obtaining a second pressure value in the tubing; determining whether the second pressure value is greater than the first pressure value; if it is greater, determining that the liquid level is valid and recording the liquid level height corresponding to the stopping position; if it is less than or equal to the first pressure value, determining it as a false judgment and controlling the reagent needle to continue downward to re-detect; calculating the actual balance based on the liquid level height and pre-stored reagent information; updating the database based on the actual balance and using the updated balance as the initial balance for the next liquid aspiration.

Systems and methods are providing for detecting and monitoring thoracic fluid, air-trapping and ventilation assessment in real time, wherein data obtained from a non-invasive electrode patch is analyzed using analysis algorithms for an electrical equivalent model that have been personalized for a patient's physiologic characteristics, medical condition and / or historical medical information using machine learning trained on a dataset representative of a large and diverse patient population. The systems and methods provide a simple, real-time, highly sensitive and specific, non-invasive, bedside solution for fluid level assessment, checking for increased air trapping, and ventilation assessment. The described methods include a variety of use cases for the inventive system and methods.

The invention belongs to the technical field of wine sealing tank covers, and discloses a cover body which comprises a main body and an exhaust channel, a liquid inlet is formed in the upper end face of the main body, reinforcing ribs are arranged on the lower end face of the main body, and a cavity is formed between the reinforcing ribs and the inner wall of an aging tank; and the exhaust channel is arranged on the reinforcing rib and is used for communicating the cavity with an external space and exhausting gas in the cavity. By arranging the exhaust channel, gas in the cavity is exhausted, and the problem that when the liquid level of wine is flush with the bottom of the cover body reinforcing rib, the wine is continuously injected, so that the gas in the cavity cannot be exhausted, and the cavity and the storage tank cannot be filled with the wine is solved.

This invention discloses an interventional contrast agent safety injector, comprising an injector housing, an injection actuator, a dual-lumen catheter, a tubing reflux sensing mechanism, and a main unit control unit. The injection actuator, installed within the injector housing, includes a power source and an syringe barrel. The power source drives the syringe barrel piston to move linearly along the axial direction of the syringe barrel body to output the contrast agent from the syringe barrel outlet connector. The dual-lumen catheter includes a dual-lumen catheter body, within which are independently located a main injection chamber and a secondary sensing chamber along its length. The tubing reflux sensing mechanism includes a sensing capillary and a photoelectric liquid level detection component. The sensing capillary sequentially contains a column of normal saline and a sealed air column. The sealed air column converts local pressure changes in the blood vessel into axial displacement of the liquid level. The photoelectric liquid level detection component converts the liquid level displacement into an electrical signal and outputs it to the main unit control unit, which then adjusts the injection flow rate accordingly.