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26 results about "Drainage volume" patented technology

The well drainage volume is a generalization of the radius of drainage concept (Lee, 1982) and relies on calculating the propagation of a pressure disturbance corresponding to an impulse source/sink along the streamlines.

Drainage liquid sudden increase rapid early warning system based on artificial intelligence

The invention relates to the technical field of drainage liquid sudden increase early warning, in particular to a drainage liquid sudden increase rapid early warning system based on artificial intelligence. The system obtains drainage volume data and various physiological indexes in real time; according to the difference between the drainage volume data changes of the current patient and the preset similar historical patient and the drainage volume data change condition of the current patient, the drainage abnormality degree is obtained, and the drainage abnormality time period is determined; according to the duration of the abnormal drainage time period of the current patient at the current moment, the change of the abnormal drainage degree in the abnormal drainage time period and the abnormal condition of the physiological indexes, the abnormal drainage degree is determined; and acquiring an early warning degree to perform early warning on the drainage sudden increase abnormity of the current patient at the current moment according to the occurrence condition of the drainage abnormal time period of the current patient at the current moment, the overall abnormal condition of the physiological indexes and the change of the interval duration of the adjacent drainage abnormal time periods. According to the invention, early warning is accurately carried out on drainage sudden increase abnormity of the current patient, so that the harm of drainage abnormity is effectively reduced.
Owner:NANJING DRUM TOWER HOSPITAL +1

Intelligent drainage and pressure reduction comprehensive treatment method based on dynamic drainage density optimization

The invention relates to the field of coal mine safety mining and underground water control, and particularly discloses an intelligent drainage and pressure reduction comprehensive treatment method based on dynamic drainage density optimization, which comprises the following steps: S1, arranging a monitoring section fixed-distance grid array, and determining point location and hole sealing requirements; s2, adopting a structured mesh to subdivide the three-dimensional model; s3, describing spatial correlation between aquifer parameters and effective porosity by using a spherical variation function model, and performing universal Kriging interpolation in combination with covariables to generate a three-dimensional parameter field; s4, solving a Darwest equation based on a finite difference method to establish a three-dimensional water flow model; s5, correcting a traditional water inrush coefficient formula by using a rock mass integrity coefficient, and setting a third-level early warning threshold value; s6, determining double threshold values of the safe water level and the ecological water level; s7, well density calculation is carried out, and a function is constructed; and S8, establishing a staged drainage scheme to form an ecological regulation and control strategy. According to the method, the drainage amount can be accurately and dynamically regulated and controlled, the water inrush risk is reduced, and ecological disturbance is reduced.
Owner:GUIZHOU UNIV

Drainage bag capable of controlling drainage amount

The utility model discloses a drainage bag capable of controlling drainage volume, which comprises an outer frame, a first vertical guide rail, a second vertical guide rail, a telescopic drainage bag and an adjusting component, one end of the adjusting component is in sliding connection with the first vertical guide rail, and the other end of the adjusting component is in sliding connection with the second vertical guide rail. The first vertical guide rail and the second vertical guide rail are each provided with a plurality of adjusting holes arranged at intervals in the vertical direction, the adjusting holes are matched with the adjusting assembly in a clamped mode, the upper end of the telescopic drainage bag is connected with a drainage tube, and the drainage tube is rotationally connected with the outer frame. The lower end of the telescopic drainage bag is fixedly connected with the adjusting assembly; according to the utility model, the drainage amount can be adjusted without an electronic device, the possibility that the capacity cannot be adjusted due to failure of the electronic device is avoided, the adjusting mode is simple and quick, the manufacturing cost is low, and the device is suitable for clinical popularization and application.
Owner:GUANGDONG GENERAL HOSPITAL

A sewer network discharge volume regulation method and system and a storage medium

The application discloses a kind of sewer network discharge capacity regulation and control method, system and storage medium, belong to urban drainage management technical field.The method includes constructing the topological structure model of sewer network in target area;The flow rate and pressure of each node on topological structure model are obtained to construct pressure wave calculation model;Total pressure of each node is determined according to pressure wave calculation model;The discharge capacity of each node is determined according to the total pressure of each node;The water level of each node is determined according to the discharge capacity of each node;The maximum safe discharge capacity of each node is determined according to the total discharge capacity of all nodes of sewer network in target time length and the water level of each node;The discharge capacity of upstream pump station of sewer network is adjusted according to the maximum safe discharge capacity of each node.The application realizes global optimization control by simulating pressure wave propagation and superposition effect, avoids the problem of downstream overflow caused by upstream drainage, and improves the efficiency and safety of sewer network operation.
Owner:HOHAI UNIV

Medical quantity-controlled drainage stopping device

The invention provides a medical quantity-control drainage stopping device, and belongs to the technical field of medical nursing instruments. The device is ingenious in structure, full-mechanical in structure, high in reliability and capable of automatically and quantitatively stopping drainage. The device comprises a shell, a stopping clamp and a driving assembly, the stopping clamp is arranged on the outer wall of the shell, the driving assembly is arranged in an inner cavity of the shell and is in driving connection with the stopping clamp, a drainage bag is hung on the driving assembly, a drainage tube is clamped in a clamping opening of the stopping clamp, and the drainage bag increases weight and pulls the driving assembly to deform to a cut-off threshold value position. The driving assembly drives and controls the stopping clamp to springing and closing to execute the flow stopping work on the drainage tube. The device is high in structural reliability, low in failure rate, adjustable in drainage amount, high in practicability, flexible in hanging mode and high in convenience.
Owner:HARBIN MEDICAL UNIVERSITY

Municipal drainage low-carbon scheduling method and system based on LSTM

This invention relates to the field of municipal drainage scheduling and intelligent control technology, and particularly to a low-carbon scheduling method and system for municipal drainage based on LSTM. The method includes: establishing hydraulic topology relationships; constructing training samples and outputting the node water level sequence, downstream receiving capacity sequence, and safe retention time sequence corresponding to each drainage scheduling object in the prediction time domain; dividing the drainage volume to be discharged in each scheduling period into rigid drainage volume and transferable drainage volume; obtaining the electricity carbon emission factor sequence in the prediction time domain, and establishing a drainage volume transfer matrix characterizing the transfer and allocation relationship between the transferable drainage volume of each source scheduling period and the target scheduling period in each low-carbon period set; performing two-layer rolling scheduling based on the drainage volume transfer matrix to generate a target transfer scheme and a target scheduling scheme; and executing the target scheduling scheme. This invention achieves the reasonable transfer and scheduling of the transferable portion of the drainage task to the low-carbon period under the premise of meeting drainage safety and downstream receiving capacity constraints.
Owner:LIAONING JINXIUHESHAN ECOLOGICAL ENVIRONMENT CONSTR CO LTD

Drainage system

The invention provides a drainage system, and relates to the technical field of roadway drainage, and the system comprises a data acquisition module which is used for constructing precipitation sequence data based on the historical precipitation data of a mine sump; the displacement prediction module is used for acquiring a precipitation hidden state corresponding to the precipitation sequence data and determining predicted displacement by taking the precipitation hidden state as input of a linear activation function; wherein the displacement prediction module is obtained by training a precipitation sequence data training data set marked with displacement; and the drainage module is used for draining the mine sump based on the predicted drainage amount. According to the invention, the predicted displacement can be accurately obtained by inputting the precipitation sequence data into the displacement prediction module, and the drainage module realizes accurate drainage from the mine sump through the predicted displacement.
Owner:YUNNAN DIANDONG YUWANG ENERGY CO LTD

Artificial intelligence-based rapid warning system for sudden increase of drainage fluid

The present application relates to the technical field of drainage liquid sudden increase early warning, in particular to a drainage liquid sudden increase rapid early warning system based on artificial intelligence. The system acquires drainage volume data and various physiological indexes in real time; according to the difference between the current patient and the preset similar historical patient in terms of drainage volume data change, and the current patient's drainage volume data change, the drainage abnormality degree is determined to determine the drainage abnormal period; according to the length of the current patient's current time in the drainage abnormal period, the change of the drainage abnormality degree in the drainage abnormal period, and the abnormal situation of the physiological indexes, as well as the occurrence of the current patient's drainage abnormal period up to the current time, the overall abnormal situation of the physiological indexes, and the change of the adjacent drainage abnormal period interval length, the warning degree is obtained to warn the current patient's current time of the drainage sudden increase abnormality. The present application accurately warns the current patient's drainage sudden increase abnormality, effectively reducing the harm of drainage abnormality.
Owner:NANJING DRUM TOWER HOSPITAL +1

A method, electronic device, and medium for implementing deployment of a gas reservoir drainage well

This invention discloses a method, electronic equipment, and medium for deploying drainage wells in a gas reservoir. Belonging to the field of oil and gas extraction technology, the method includes determining the reservoir water intrusion pattern and channels, calculating the cumulative water intrusion volume, and calculating the daily water intrusion volume based on the cumulative water intrusion volume. Based on the daily water intrusion volume, the total drainage volume of the gas reservoir is determined, and the total drainage volume of existing wells is determined accordingly. The gap drainage volume is determined based on the total drainage volume of the gas reservoir and the total drainage volume of existing wells; the gap drainage volume is the drainage volume of new wells that need to be deployed to supplement the existing drainage volume; the well type, drainage volume, and number of new wells are determined according to the required drainage volume; and the well trajectory orientation, plane position, vertical position, and length of the new wells are set. This method enables new wells to work collaboratively with existing wells, effectively improving the utilization rate of gas reservoir reserves, reducing abandonment pressure, and ultimately significantly improving the gas reservoir recovery rate, allowing gas reservoir development to maintain a highly efficient and stable state for a longer period.
Owner:PETROCHINA CO LTD

A metering device, ocular drainage device and method

ActiveCN121623029BStable conveying speedAchieve clever conversionVolume measurement apparatus/methodsEye surgeryMedicineMechanical engineering
The application relates to the technical field of metering, and discloses a metering device, an eye drainage device and a method, which comprise a metering main body, a first cavity and a second cavity are arranged in the metering main body, the first cavity is provided with a drainage inlet, the first cavity and the second cavity are communicated through a communicating pipe, the communicating pipe comprises a rigid section and a hose section, the rigid section is communicated with the first cavity, the hose section is communicated with the second cavity, a piston block and a peristaltic driving unit are further arranged, the piston block is movably arranged in the rigid section, the hose section is arranged in the peristaltic driving unit, the first cavity is filled with a first medium, the second cavity is filled with a second medium, the peristaltic driving unit can drive the second medium in the hose section to be conveyed so as to move the piston block, the piston block drives the second medium to flow so as to drain the drainage inlet, and the second cavity is provided with a metering scale for metering. Through the above scheme, the problem that the drainage speed and the drainage volume are not accurately controlled in the drainage process in the prior art is solved.
Owner:SHIJIAZHUANG PEOPLES HOSPITAL

Information processing device, control method for information processing device, and program

To enable the acquisition of drainage construction methods that correspond to the drainage targets in the field. [Solution] The information processing device includes an acquisition means for acquiring target drainage volume, target drainage time, rainfall per unit time, and field images per unit time in a field where drainage work is to be carried out, and an estimation means for inputting the target drainage volume, target drainage time, rainfall per unit time, and field images per unit time acquired by the acquisition means as first input data to a trained model which has been trained to output drainage work information that can be carried out with the drainage target based on input data including the drainage target of the field, and performing estimation, and outputting drainage work information corresponding to the obtained first input data.
Owner:CANON KK

A town intelligent flood-prevention drainage early warning method

This invention relates to the field of intelligent flood control and drainage early warning technology for urban areas, and discloses an intelligent flood control and drainage early warning method for urban areas. This flood control early warning system integrates precipitation monitoring, drainage well rated drainage capacity assessment, accurate detection of wellhead water flow velocity, and image recognition technology. By acquiring real-time precipitation and drainage well rated data, and combining multiple water flow velocity detectors to perform detailed analysis of wellhead water flow distribution, the system also utilizes cameras and image recognition to determine the wellhead condition. Based on changes in drainage volume and wellhead conditions, the system flexibly responds to complex situations such as a sharp drop in drainage volume accompanied by foreign objects, a rise in stable water levels reaching the rated capacity, and a rise in stable water levels below the rated capacity, formulating and executing corresponding early warning strategies. Furthermore, the system can quickly locate and notify personnel within a 1-kilometer radius, instantly transmitting flood information via SMS to ensure that those affected by flooding are informed of the situation immediately, effectively improving flood control efficiency and safety.
Owner:NUCLEAR IND JINHUA CONSTR ENG CO

A multi-functional portable bag for diversion bottles applicable to multiple scenarios

This utility model discloses a multifunctional portable bag for drainage bottles applicable to multiple scenarios, belonging to the field of medical auxiliary products technology. It includes a bag body, a detachable shoulder strap, and a smart base. The bag body has an open top, with the drainage bottle placed inside. Hooks are located on both sides of the open top of the bag body, and the two ends of the shoulder strap are fixed to the hooks. The smart base is located on the inner bottom surface of the bag body, and a monitoring unit is located at the center of its upper surface. An indicator light is also located on the bag body. The monitoring unit includes a timer, a weight sensor, and a control terminal. The timer and weight sensor transmit data to the control terminal, which determines the drainage volume per unit time based on the acquired data and instructs the indicator light to monitor its operation according to the drainage volume. This utility model achieves the function of monitoring drainage fluid, ensuring that patients can promptly monitor their physical condition and change the drainage fluid in a timely manner.
Owner:SUN YAT SEN UNIVERSITY CANCER CENTER (CANCER HOSPITAL AFFILIATED TO SUN YAT SEN UNIVERSITY CANCER RESEARCH INSTITUTE OF SUN YAT SEN UNIVERSITY)

Method for managing and scheduling sewage system for river basin management

PendingCN122452876AReal-time dataPollutant flux
The present application relates to the technical field of river basin management, and discloses a sewage system management and scheduling method for river basin management, comprising the following steps: predicting tides and dividing tide phase intervals; calculating tide phase-dependent pollutant capacity; predicting rainfall and calculating pollutant flux; calculating tide phase-dependent emptying rate; predicting volume occupation and judging the sufficiency of drainage volume; optimizing time sequence coupling volume division; generating scheduling instructions; correcting real-time data and updating scheduling. The present application solves the problem that the tidal river basin cannot effectively balance water quality protection and waterlogging prevention in the regulation and storage pool, and realizes the collaborative optimization of dual-function volume division and discharge scheduling of the regulation and storage pool.
Owner:HANGZHOU SIGMARO ELECTRO OPTICAL TECH

Abdominocentesis drainage device with adjustable drainage amount

The invention relates to the technical field of medical instruments, and discloses an abdominal cavity puncture drainage device with adjustable drainage volume, which comprises a main body assembly and a drainage tube, a communication shell is fixed at the end part of the drainage tube, a drainage outer bottle is fixed at the bottom of the communication shell, and a drainage inner bottle slides in the drainage outer bottle. The medical drainage device has the advantages that the communicating shell is provided with the valve part capable of being adjusted in multiple gears, the monitoring part is arranged, medical staff can preliminarily adjust the drainage speed through preset gears, meanwhile, the real-time flow speed is visually obtained through a pointer, whether the flow speed is matched with the gears or not is accurately judged, and compared with a traditional single manual valve, the medical drainage device is more convenient to use. The accuracy of flow control is remarkably improved, complications caused by improper flow velocity are avoided, and the treatment safety is guaranteed.
Owner:SUZHOU WUJIANG DISTRICT HOSPITAL OF TRADITIONAL CHINESE MEDICINE (SECOND PEOPLES HOSPITAL OF WUJIANG DISTRICT SUZHOU CITY)

Water seal floor drain with double-siphon structure

The utility model discloses a water seal floor drain with a double-siphon structure, and relates to the technical field of drainage facilities. Comprising a floor drain body and a water seal cover, and a tubular drainage cavity is formed in the floor drain body; the opening of the water seal cover is downward, the water seal cover is buckled above the drainage cavity, and a water seal is formed between the floor drain body and the drainage cavity; a circle of first step and a circle of second step are arranged on the inner wall of the drainage cavity in the circumferential direction; the second step is located at the bottom of the drainage cavity; the first step is located above the second step, and a cylindrical siphon column is arranged on the inner side of the water seal cover; a circle of concave platform structure is arranged on the outer wall of the siphon column; the concave platform structure is positioned above the first step; according to the utility model, the problem that the water discharge amount is limited when the floor drain is connected with a drain pipe with a larger pipe diameter is solved; and compatibility with a drainage pipe with the outer diameter of 40-50 mm can be achieved, and practicability is higher.
Owner:宋少萍

Lumbar cistern drainage tube height automatic adjusting device and control method thereof

The invention discloses an automatic lumbar cistern drainage tube height adjusting device and a control method thereof, belongs to the technical field of lumbar cistern drainage, and aims to solve the problems that the drainage speed frequently deviates from the range required by treatment and the sealing performance of the device is not easy to detect due to the fact that the hanging position of the drainage device is manually adjusted and the amplitude is inaccurate to control. A controller is arranged on one side of the supporting frame, a height adjusting assembly is arranged on the other side of the supporting frame, a drainage bottle is arranged on one side of the height adjusting assembly, a liquid inlet assembly is communicated with one side of the drainage bottle, a liquid pumping assembly is arranged on one side of the drainage bottle, the liquid pumping assembly is communicated with the liquid inlet assembly, and a drainage detection assembly is arranged on one side of the drainage bottle. According to the cerebrospinal fluid drainage device, double control over the drainage flow speed of cerebrospinal fluid is conveniently achieved, the drainage amount is automatically accumulated, the excessive drainage risk is effectively avoided, and the stability and safety of the drainage process are remarkably improved.
Owner:WENZHOU CENT HOSPITAL

Adjustable inner diameter drainage pipe and drainage system based on shape memory alloy springs

This utility model discloses an adjustable inner diameter drainage pipe and drainage system based on a shape memory alloy spring, relating to the field of slope protection engineering technology. It includes: an outer wall and an inner wall of the drainage pipe; the inner wall of the drainage pipe is divided longitudinally into multiple sections, the inner walls of which are wrapped with waterproof cloth; a shape memory alloy spring and an offset spring are installed between the outer wall and the inner wall of the drainage pipe; an electromagnetic heating strip is wrapped around the side of the shape memory alloy spring; a flow velocity sensor is also installed on the inner wall of the drainage pipe; the electromagnetic heating strip and the flow velocity sensor are electrically connected to a microcontroller. This utility model alleviates the technical problems of high response time and high maintenance costs in existing drainage volume control mechanisms.
Owner:GAMBOV MINING CO LTD +1

A blocked line early warning device for bladder irrigation

This invention discloses a bladder irrigation tube blockage early warning device, comprising a tube body, one end of which is a connecting end and fitted with a fixed cap. The tube body has a drainage passage and an infusion passage. The fixed cap contains a first chamber and a second chamber, which are respectively connected to the drainage passage and the infusion passage. The outer wall of the fixed cap has a first opening and a second opening, which are respectively connected to the first chamber and the second chamber. The device also includes a control tube and an infusion pipe. The control tube is fitted with the fixed cap, and its inner wall has a control chamber. The infusion pipe is connected to the control chamber. The device also includes a drainage pipe, one end of which is connected to the drainage passage, and the other end is connected to a flow meter. The fixed cap has an alarm. When the flow meter detects that the drainage volume in the drainage passage is lower than a predetermined flow rate, the alarm sounds. The flow meter and alarm provide real-time monitoring of the drainage volume in the drainage passage, thus avoiding the difficulty in detecting blockage in its early stages.
Owner:THE THIRD MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL

Fully strong weathered clastic rock side slope drainage structure

The utility model discloses a fully strong weathered clastic rock slope drainage structure, which comprises a waterproof corner fitting, a drainage pipe, a drainage groove and a pressing piece which are arranged on the outer side of a stepped support structure, and the waterproof corner fitting is fixedly covered at the transverse junction of steps of the stepped support structure and is used as a normal waterproof and water absorption structure for corners where water is easy to accumulate. The drainage pipe and the drainage groove form a water guide and drainage system, rainwater on the inner side is rapidly guided into the drainage groove in the bottom of the supporting structure, a pressing piece is arranged at the bottom of the drainage pipe, different extrusion effects on the water absorption strip under the pressing piece are formed according to the drainage amount, and most water extruded by the water extrusion strip is guided into the drainage groove. Therefore, the whole slope drainage structure is simple in design and convenient to install, and the problem that the slope structure stability is affected due to the fact that a retaining wall of a stepped supporting structure is prone to water accumulation and leakage at the junction is solved.
Owner:CHINA FOURTH ENG OF CHINA RAILWAY SEVENTH GROUP +1

Drainage quantity prediction method under extreme weather event based on digital twinning

The invention relates to the technical field of urban drainage management, in particular to a drainage quantity prediction method based on digital twinning under an extreme weather event, which comprises the following steps: constructing a digital twinning model of a drainage pipeline on a digital twinning platform according to geographic information and drainage quantity data of the drainage pipeline; obtaining meteorological data, and determining a drainage pressure coefficient of the drainage main pipe according to the meteorological data and the drainage amount data of the drainage main pipe; for each drainage branch pipe, determining a weight adjustment coefficient of the drainage branch pipe according to the drainage pressure coefficient and the geographic information of the drainage branch pipe; adjusting the initial smoothing coefficient according to the weight adjustment coefficient to obtain a target smoothing coefficient corresponding to the drainage branch pipe; a cubic exponential smoothing algorithm is adopted, the predicted displacement of the drainage branch pipe is determined based on the displacement data of the drainage branch pipe, visual display is carried out based on a digital twinborn model, and the smoothing coefficient of the cubic exponential smoothing algorithm is a target smoothing coefficient. According to the invention, the accuracy of displacement prediction is improved.
Owner:NAN TONG DIAN NAI TE ZHI NENG KE JI YOU XIAN GONG SI

Method for determining well spacing parameters of new shale oil well based on response time-varying oil drainage volume

The invention discloses a shale oil new well spacing parameter determination method based on response time-varying oil drainage volume, and belongs to the field of oil and gas field development. The method comprises the following steps: S1, constructing a geomechanics-seepage coupling model, and calculating a dynamic response time-varying oil drainage volume; s2, crack propagation and oil drainage volume curves under different cluster distances are simulated, and the optimal cluster distance is determined; s3, according to the fracture position of the old well, the fracturing section length of the new well is adjusted in a differentiated mode, staggered fracture distribution is achieved, and the optimization effect is verified through an oil drainage volume curve; and S4, simulating a contact relation and an oil drainage volume curve of new and old well cracks under different azimuth angles, and selecting an azimuth angle which realizes'crack micro-lap joint 'and shows the optimal oil drainage volume. The method breaks through the limitation of static evaluation, realizes the determination of well spacing parameters such as cluster spacing, segment length and azimuth angle under the background of multi-field dynamic coupling and inter-well interference, and remarkably improves the well group reserve control and long-term stable production capability.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

An oral drainage device capable of rinsing

This utility model belongs to the field of oral medical device technology, specifically relating to an oral drainage device capable of irrigation, including a drainage ball. A negative pressure indicator and a first one-way valve are sequentially connected to the top of the drainage ball via a connecting tube. A first drainage tube is connected to the bottom of the drainage ball, and an irrigation tube is connected to the first drainage tube. Irrigation holes and drainage holes are evenly arranged on the first drainage tube, communicating with the irrigation chamber and drainage chamber respectively, allowing for simultaneous drainage and irrigation. Adding a second drainage tube to this device can be used for bimaxillary drainage, ensuring drainage effectiveness. For cases with large postoperative drainage volumes, a collection bag can be connected via a three-way connector between the negative pressure indicator and the first Robert clamp, allowing for timely removal of drainage fluid and reducing the risk of infection.
Owner:RIZHAO CENT HOSPITAL

Cerebral ventricular drainage regulator

ActiveCN120550233BMedical devicesIntravenous devicesCerebral ventricularLiquid storage tank
The application discloses a ventricular drainage regulator, belongs to the field of drainage devices, and is used for ventricular drainage and comprises a liquid storage tank provided with a tank body connecting pipe, wherein the liquid storage tank is connected with a negative pressure tank provided with a main piston through a threaded structure, the main piston is connected with an auxiliary rack through a main piston rod, the auxiliary rack is in mesh transmission with a driving gear of a rack driving motor, a main cavity in the negative pressure tank is communicated with an auxiliary cavity in a negative pressure auxiliary pipe through a cavity connecting hole, an auxiliary piston is arranged in the auxiliary cavity, the auxiliary piston blocks the cavity connecting hole in an initial state, the auxiliary piston is connected with an auxiliary piston rod, the auxiliary piston rod is connected with a linkage rod, the linkage rod is connected with a linkage plate, the linkage plate is connected with the auxiliary rack, and the application can generate and fine tune a negative pressure environment through structural adjustment, can effectively guarantee the stability of the negative pressure environment, can increase and fine tune the negative pressure, has better flexibility and adaptability, and is convenient for ventricular drainage and observation of drainage volume.
Owner:NORTHERN JIANGSU PEOPLES HOSPITAL

Peritoneal dialysis ultrafiltration amount monitoring and correcting method and related equipment

The invention discloses a peritoneal dialysis ultrafiltration amount monitoring and correcting method and related equipment. The method comprises the steps that on the basis of constraint of staging labeling of a patient, in combination with historical stable night data similar to a current prescription, a current individualized ultrafiltration amount threshold range is generated and issued to equipment to serve as a comparison reference, the individualized ultrafiltration amount threshold range comprises an upper limit and a lower limit, and staging comprises the early stage, the middle stage and the late stage; in the drainage stage, the inclination angle parameter of the body position of the patient is obtained through the inertial measurement unit, and the real-time height difference between the peritoneal fluid level and the drainage bag is estimated according to the height calibration during catheter installation and the drainage bag mounting position recognition result; the height difference is converted into an equivalent siphon pressure magnitude only in the liquid discharging stage, and a water head compensation factor is generated and used for correcting liquid discharging volume measurement values of the weighing channel and the flow channel. The problem that the existing mainstream automatic peritoneal dialysis equipment has obvious technical limitation on the calculation method of the net ultrafiltration amount can be solved.
Owner:TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH

Return-resistant drainage adjustable cerebrospinal fluid drainage tube for neurosurgery department

The invention relates to the technical field of medical instruments, and discloses a neurosurgery anti-return drainage adjustable cerebrospinal fluid drainage tube which comprises a two-way tube, a lower opening of the two-way tube is inserted into a silicon rubber sleeve, a one-way valve is arranged at a side opening of the two-way tube, and a fixing sleeve is fixedly connected into the closed end of the two-way tube. A screw rod is in threaded connection with the interior of the fixing sleeve, one end of the screw rod is rotationally connected with a stopping block, the other end of the screw rod is fixedly connected with a rotary knob, opening and closing of the drainage channel can be accurately controlled through adjustment of the rotary knob, and therefore the drainage amount is controlled. Through the adjusting assembly, controllable adjustment of the drainage speed of cerebrospinal fluid is achieved, individualized treatment can be conveniently conducted according to the condition of a patient, medical staff can stably change the circulation sectional area in the two-way tube by rotating a rotary knob and through threaded transmission fit between a screw and a stop block, and therefore quantitative and accurate control over the drainage speed is achieved; and the scientificity and effectiveness of treatment are improved.
Owner:TAIHE HOSPITAL OF SHIYAN CITY (AFFILIATED HOSPITAL OF HUBEI UNIVERSITY OF MEDECINE)