301 results about "Hemodialysis" patented technology

The invention relates to the technical field of hemodialysis teaching systems, and discloses a hemodialysis teaching system based on AI intelligent pushing. The system comprises an operation feature extraction module, an instrument positioning analysis module, an operation step analysis module and a teaching strategy generation module. Operating a feature extraction module to obtain a hemodialysis teaching video stream, and extracting multi-modal features containing an instrument movement track sequence and physiological parameter simulation data; an instrument positioning analysis module calls a pre-training network for positioning and generates a coordinate data set containing instrument types and three-dimensional position coding mapping; the operation step analysis module analyzes the time sequence characteristics by means of an action segmentation model, and generates a result containing step integrity and an error operation mark; and the teaching strategy generation module inputs a result into the intelligent push model, plans a personalized teaching path, outputs a knowledge point sequence containing a student ability model and dynamic teaching elements of operation difficulty parameters, and assists the hemodialysis teaching to be precise and personalized.

The invention relates to the field of medical informatics, and provides a hemodialysis multi-mode risk closed-loop control system. Comprising a multi-source data acquisition module used for acquiring heterogeneous data in a dialysis process in real time; the space-time fusion engine module is used for carrying out space-time alignment and feature extraction of cross-modal data on the heterogeneous data by adopting a graph neural network architecture to generate a fusion feature vector; the dynamic risk prediction module is used for constructing a multi-dimensional risk assessment system based on the fusion feature vector, carrying out probability prediction on multiple risk types and outputting a prediction result; and the intelligent intervention control module evaluates the risk level according to the prediction result output by the dynamic risk prediction module, and generates an intervention strategy through a reinforcement learning algorithm. According to the invention, the timeliness and accuracy of intervention response are improved, and the incidence rate of dialysis complications is reduced.

The invention discloses a medicine adding device used in cooperation with a hemodialysis machine and a using method of the medicine adding device. The medicine adding device used in cooperation with the hemodialysis machine comprises a blood pipeline and a medicine adding device, the first medicine adding assembly comprises a bin body, a first medicine liquid guide pipe and a flow control assembly. During use, medicine entering the bin body can be slowly injected into the blood pipeline through the first medicine liquid guide pipe by adjusting the flow control assembly. Under an original conventional medicine adding mode, medicine injected into blood at a time through an injector can be slowly injected into the blood when the first medicine adding assembly of the medicine adding device is adopted for medicine adding, so that the medicine can flow into the blood slowly and more dispersedly, is more fully and uniformly mixed with the blood and then flows back into the body of a patient along with the blood successively, and the medicine adding effect is good. A better treatment effect is achieved; and meanwhile, for the medicament needing to be slowly injected, medical personnel do not need to slowly push the piston of the injector to slowly move to inject the medicament, so that the operation difficulty of slowly injecting the medicament is reduced.

A double-circulation disinfection system for hemodialysis water treatment relates to the field of water treatment and comprises a pretreatment system, a balanced reservoir, a constant pressure pump, a first-stage reverse osmosis membrane filtering mechanism and a second-stage reverse osmosis membrane filtering mechanism which are sequentially connected in series through a pipeline, a discharge port with a drain valve is arranged on the balanced reservoir, and the double-circulation disinfection system is characterized in that the constant pressure pump is connected with the first-stage reverse osmosis membrane filtering mechanism and the second-stage reverse osmosis membrane filtering mechanism. The disinfection system comprises a disinfectant disinfection system and a high-temperature disinfection system, and bypass pipelines with valves are connected in front of a water inlet valve at the water inlet end of the first-stage reverse osmosis membrane filtering mechanism and behind a water outlet valve at the water outlet end of the second-stage reverse osmosis membrane filtering mechanism. Compared with the prior art, the utility model has the advantages that the sterilization and disinfection are thorough, and the residual disinfectant can be effectively removed.

The application discloses a lung function, respiratory muscle function determination method, system and device, and relates to the technical field of medical detection.The application comprises: MR image data collection, MR image data preprocessing, forming an image data set by MR post-processing image data; dividing the image data set into a training set, a verification set and a test set according to a ratio of 5:2:1; and constructing a UNet segmentation model and training the model by using the image data set.The application innovatively adopts a deep learning method to post-process chest MRI dynamic images, obtains quantitative indexes capable of comprehensively evaluating diaphragm structure and function of hemodialysis patients, and quantitatively describes the diaphragm function condition of the population, thereby making up for the shortcomings that a lung function instrument cannot early identify patients with relatively light respiratory muscle lesions and lung function in a compensatory stage, cannot indicate the position of respiratory muscle lesions, and cannot monitor the lung function of patients with poor lung function due to the inability to complete the lung function instrument examination.

The invention provides an arm fixing device for hemodialysis in the nephrology department and a blood leakage prevention method, belongs to the technical field of medical instruments, and aims to solve the technical problem that blood leakage is likely to occur in the hemodialysis treatment process in the prior art. Comprising a needle frame, a fixing band and a locking fastener, the needle frame comprises a seat body and a cover body which are buckled, the seat body is provided with a vertically-penetrating needle head cavity and a needle body cavity laterally penetrating into the needle head cavity, the needle body cavity is provided with a needle handle fixing structure, a cover body cavity is formed in the position, corresponding to the needle head cavity, of the cover body, a transparent plate is arranged on the outer side of the cover body cavity, and a transparent elastic film is arranged on the inner side of the cover body cavity. The cover body is provided with a self-sealing interface which is communicated with the transparent plate and the elastic film interlayer; the two fixing belts are fixedly connected to the two sides of the base body respectively, and the lock catch piece is fixedly connected with the outer ends of the two fixing belts. And a gap at an acupuncture position caused by hand movement during dialysis is effectively prevented, the risk of blood leakage is greatly reduced, and the treatment safety is guaranteed.

The utility model discloses a double-bubble monitoring choke clip for a hemodialysis machine, which comprises a mounting part mounted on the outer surface of the hemodialysis machine, and the mounting part is provided with an artery pipeline channel for placing an artery pipeline and a vein pipeline channel for placing a vein pipeline. The artery pipeline channel and the vein pipeline channel penetrate through the mounting part, monitoring probes used for monitoring whether bubbles are generated in the artery pipeline or the vein pipeline are arranged on the inner wall of the artery pipeline channel and the inner wall of the vein pipeline channel, and chucks used for clamping the artery pipeline or the vein pipeline are arranged in the artery pipeline channel and the vein pipeline channel. The artery pipeline and the vein pipeline can be monitored at the same time, and monitoring is comprehensive.

This invention relates to the field of medical auxiliary instruments, and more particularly to a hemodialysis auxiliary device for nephrology. This invention provides a hemodialysis auxiliary device for nephrology that can stably support the patient's arm on the side of the fistula and provides movable fixation for the catheter connected to the fistula puncture needle. It is flexible in use and can effectively prevent muscle spasms in the arm, thus assisting the patient in undergoing more comfortable hemodialysis treatment. The hemodialysis auxiliary device for nephrology includes a base plate, a screw, and a rotating handle; the screw is threaded to the base plate, and the rotating handle is located at the bottom end of the screw. This invention uses a round-headed top rod to limit the inclined ring, locking the height of the support ring plate and the fixed ring plate. Simultaneously, a toothed ring limits the gear, locking the swing angle of the support ring plate and the fixed ring plate. This allows the support ring plate to limit the patient's arm on the side of the fistula, assisting the patient in undergoing stable hemodialysis treatment.

The invention provides disinfection equipment for a hemodialysis machine, and belongs to the technical field of disinfection of hemodialysis machines. Comprising a high-temperature disinfection box; and the connecting assembly is used for keeping the distance between the high-pressure spray head and the rotating column stable, and the connecting assembly is connected with the high-pressure spray head and the rotating column. By arranging the connecting assembly, the distance between the high-pressure spray head and the rotating column can be kept stable, so that the disinfection brush is matched with the high-pressure spray head to always provide stable and uniform flushing force for the inner wall of the guide pipe, the inner wall of the guide pipe can be comprehensively and fully flushed and disinfected, and the flushing and disinfection quality of the guide pipe is guaranteed; the whole cleaning and disinfecting efficiency of the hemodialysis machine is improved, meanwhile, the connecting assembly further has a scraping effect on the wall of the catheter, residues of disinfecting liquid in the catheter can be effectively reduced, the mottling phenomenon of the wall of the catheter is avoided in the subsequent drying process, and the disinfecting quality and efficiency of the catheter are further improved.

1. The name of the design product: hemodialysis tube fixing clamp. 2. The use of the design product: for fixing hemodialysis tube. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The utility model relates to the technical field of hemodialysis pipeline anti-falling, and discloses a hemodialysis pipeline anti-falling device for hemodialysis room nursing, which is characterized by comprising a telescopic component connected with a supporting shell, and the supporting shell is connected with a pipeline fixing component through an elastic limiting component; the pipeline fixing assembly comprises a pipeline fixing frame, the pipeline fixing frame is in a U shape, one side of the interior of the pipeline fixing frame is fixedly connected with a pipeline limiting block, a hemodialysis pipeline can be firmly fixed to the device through cooperation of the pipeline fixing frame, the pipeline limiting block and a top block, and an arc-shaped clamping groove of the pipeline limiting block and the top block interact to fix the hemodialysis pipeline to the device; by means of the structure, displacement and falling of the pipeline in the treatment process can be effectively prevented, continuity and stability of hemodialysis treatment are guaranteed, and medical risks such as blood leakage and air entering the pipeline caused by loosening or falling of the pipeline are reduced.

The invention relates to a hemodialysis fistula stenosis automatic detection and grading method and system. Acquiring multi-mode ultrasonic data of the arteriovenous fistula; labeling the multi-modal ultrasonic data by adopting a five-level labeling standard to establish a two-dimensional labeling system; preprocessing the two-dimensional ultrasonic structure image in the two-dimensional labeling system to obtain a segmentation result of the fistula area; narrow parameters are calculated based on the segmentation result; extracting hemodynamic parameters based on the blood flow spectrum data in the two-dimensional labeling system; constructing a multi-feature fusion deep learning architecture; extracting an image feature map of the preprocessed two-dimensional ultrasonic structure image through a ResNet50 architecture based on an image branch; based on parameter branches, the stenosis parameters and the hemodynamic parameters are fused and converted to obtain a parameter feature map; fusing the image feature map and the parameter feature map to obtain a fused feature; and predicting the fistula stenosis level based on the fusion features to obtain a five-level stenosis grading result. The efficiency and reliability of hemodialysis fistula analysis are improved.

Systems, assemblies, and methods are provided for delivering one or more intubation needles into a blood vessel. The systems, assemblies, and methods use a needle delivery device coupled to one or more ultrasonic sensors to control delivery of the intubation needle.

The invention provides an ICU bedside hemodialysis pipeline self-adaptive anti-coagulation flushing device which comprises a dialyzer, the dialyzer is connected with an outlet pipe and an input pipe, a blood pump is arranged on the outlet pipe, and the dialyzer comprises an upper cylinder, a lower cylinder and a movable sleeve; the swing device comprises a first fixing frame arranged on the upper cylinder and the lower cylinder, a telescopic shaft is arranged on the first fixing frame, a second spring sleeves the telescopic shaft, the telescopic shaft is connected with a movable sleeve, a movable rod is arranged on the outer side face of the movable sleeve, a support is connected to the outer side face of the upper cylinder, and a movable rod is arranged on the movable rod. A rotating shaft is arranged on the support, the rotating shaft is connected with a cam motor, a cam is further arranged on the rotating shaft, and the cam is in contact connection with the moving rod; the anti-coagulation dialyzer has the advantages that the anti-coagulation effect of the dialyzer can be achieved, operation is convenient, the structure is simple, and the problem of coagulation can be effectively relieved in a self-adaptive mode.

The utility model discloses a hemodialysis pipeline fixing patch, and belongs to the technical field of water prevention and heat preservation. Comprising a fixing paste used for adhering to the upper surface of an arm of a patient, an adhesive paste used for adhering and fixing a hemodialysis tube, a limiting mechanism used for limiting the hemodialysis tube, an adjusting mechanism used for adjusting the limiting mechanism left and right, and an auxiliary paste used for connecting the adjusting mechanism with the fixing paste. By means of the device, the hemodialysis pipeline can be bent back and pasted to the upper surface of the arm of a patient, the catheter is prevented from being disengaged, and the situation that the hemodialysis pipeline is inconvenient to place due to the fact that the hemodialysis pipeline is long and cannot be conveniently placed is avoided. According to the hemodialysis catheter fixing device, the problems that the hemodialysis catheter is likely to be pressed by the limbs of a patient and blood in the catheter is coagulated and blocked are solved, meanwhile, the hemodialysis catheter is limited and adjusted left and right, blood flowing can be further facilitated, and the treatment effect is improved.

The invention discloses a monitoring nursing device with an arm numbness preventing function for hemodialysis nursing, and belongs to the technical field of medical nursing equipment. The device comprises a housing, an arm frame is longitudinally installed in the housing, horizontal and vertical massage columns are arranged on the two sides and the bottom of the arm frame and driven by a side motor and a bottom motor through cams, reciprocating massage is achieved in cooperation with a reset spring, and the paired massage columns press alternately; a breathable cotton layer, a temperature sensor and a heating piece are arranged on the inner side of the arm frame, and the heating piece is connected with the arm frame through a fixing spring. A pressing type spring switch and an adjustable spacing structure are further arranged, and linkage control is provided. The arm massager can massage the arms of a patient, promote blood circulation, monitor temperature, heat and keep warm, trigger massage according to the movement of the arms of the patient, adapt to different arm thicknesses, prevent the arms from numbness and improve the comfort degree.

The application provides a hemodialysis water treatment PLC system networking monitoring platform and a building method, relates to the technical field of medical data processing, and comprises a system management layer, a network communication layer and a field measurement and control layer. The system management layer further comprises three functional modules, namely, a pure water demand amount prediction module, a use condition evaluation module and a load balancing scheduling module. The pure water demand amount in a future preset time period can be accurately predicted according to the historical pure water demand amount and the use conditions of each pure water unit, and input into the load balancing scheduling module, so as to schedule the use strategy of each pure water unit. The technical scheme can accurately predict the pure water demand amount in the future preset time period from multiple dimensions, and generate an individual scheduling strategy according to the actual use conditions of each pure water unit, so that the production efficiency of pure water can meet the requirements, and the production energy consumption can be effectively reduced through load balancing scheduling.

A system includes: a dialysis system configured to provide a dialysis treatment for a patient; an optical monitoring system in communication with the dialysis system, wherein the optical monitoring system is configured to obtain measurements of the patient's hematocrit, oxygen saturation and / or blood volume change during the dialysis treatment, wherein the measurements are indicative of a double pool refill rate for the patient during the dialysis treatment; and a massaging system in communication with the dialysis system, wherein the massaging system is configured to provide massaging for the patient during the dialysis treatment, wherein providing massaging for the patient includes running a massage sequence taking into account the measurements obtained by the optical monitoring system.

The invention provides a hemodialysis internal fistula errhysis monitoring device, and belongs to the technical field of medical instruments, the hemodialysis internal fistula errhysis monitoring device comprises a monitoring component, the monitoring component comprises a fixing brace, a mounting hole is formed in the fixing brace, a disposable treatment towel is mounted on the inner wall of the fixing brace, a fixing assembly is mounted on the outer side of the fixing brace, and a monitoring assembly is mounted on the fixing assembly; an installation assembly is installed at the left end of the fixed support, a limiting assembly is installed between the installation assembly and the fixed support, an alarm and a power supply assembly are installed on the installation assembly, and a binding assembly is installed on the outer side of the fixed support. Therefore, the integrated device with the active monitoring and alarming functions is formed.

The invention relates to the technical field of medical care informatics, and discloses a hemodialysis patient dry body weight auxiliary regulation system which comprises the steps that hemodynamic stability feature vectors are extracted from continuous physiological data flow in real time and used for updating an individualized safe ultrafiltration boundary prediction model, and the cross-cycle model correction engine generates a stability index according to the long-term treatment data, and then adjusts diagnosis parameters of the data quality evaluation module. Dialysis regulation is converted into active management of evaluation based on a hemodynamics continuous process trend from hysteresis response depending on a discrete threshold value; the core of the method is that a feedback path is established, so that the instantaneous risk monitoring level of the system can be dynamically matched with slow change information representing the long-term state of a patient, and the predictability and safety of adjustment are improved.

The embodiment of the invention provides a hemodialysis parameter adjusting method and millimeter wave radar, and the method comprises the steps: measuring the vibration conditions of a blood vessel and a heart of a target object through millimeter waves, and obtaining a first signal generated by skin vibration caused by the blood vessel in an echo signal, the first signal is generated by skin vibration caused by the heart in the echo signal, the second signal is generated by skin vibration caused by the heart in the echo signal, and the first signal and the second signal pass through a signal processing model to obtain physiological state information of the target object at the current moment. According to the physiological state information at the current moment, the historical dialysis parameters of the target object and the corresponding historical physiological state information, through a dialysis parameter prediction model, the predicted dialysis parameters and / or the predicted dialysis parameter variation at the next moment are / is obtained. Under the non-contact condition, the dialysis parameters of the dialysis equipment of the target object can be timely, accurately and continuously adjusted for a long time, the method is more convenient and comfortable, the discomfort of the target object is reduced, and the method is suitable for various scenes.

The invention belongs to the technical field of medical equipment, and discloses a hemodialysis puncture needle angle fixator which comprises a bandage, a connecting plate is installed at the top end of the bandage, a needle head is arranged in a gear buckle mechanism, and the outside of the needle head communicates with a conveying pipe. Through cooperation of a first transmission gear, a first supporting block, a first reset spring and other structures, after a needle head and a conveying pipe are fixed by the device, when the needle head needs to be rotated for puncturing, a rotating drive plate drives a second transmission gear to rotate; a first rack and a second rack are driven to move through the shape of a second transmission gear, so that a first limiting block and a second limiting block are separated from meshing with the first transmission gear, at the moment, the angle of the needle head can be adjusted by rotating the first transmission gear, the first transmission gear is loosened after adjustment, and therefore the first transmission gear is limited; therefore, the purpose of conveniently adjusting the needle head by the device is achieved.

This utility model discloses a dry powder cartridge for hemodialysis, comprising: a cartridge body and a cover body; a guide tube is provided at the axis of the cartridge body, and a sieving ring is provided at the bottom end of the guide tube; a filter hole is provided on the sieving ring; a liquid guide tube communicating with the guide tube is also provided on the sieving ring; the liquid guide tubes are multiple sets and arranged in a ring on the sieving ring. In this utility model, after filling the cartridge body with dialysis dry powder, the connecting pipe on the cover body is inserted into the connector, and the heat-sealing ring is heated to achieve a sealed connection between the cartridge body and the cover body. Liquid is injected into the guide tube through the inlet pipe, and the aqueous solution inside the guide tube is discharged from the bottom of the cartridge body through the liquid guide tube. All sets of liquid guide tubes are arc-shaped, and each set of liquid guide tubes has a drain hole on one side facing its center, allowing water to dissolve in the bottom of the cartridge body in a ring flow, fully mixing the aqueous solution with the dialysis powder at the bottom to form a dialysis concentrate, which finally flows through the filter hole into the drain tube and is discharged.

The present application relates to the technical field of medical monitoring, in particular to a multi-dimensional evaluation method and system for the thirst degree of hemodialysis patients, which collects the saliva osmotic pressure time series signal, the pharyngeal muscle electromyogram signal and the digital analog thirst scale score filled in by the patient from a plurality of sensing terminals; accordingly, a thirst physiological marker graph reflecting physiological thirst sensation driving is established, and the scale score is checked to obtain a patient thirst state benchmark vector. The natural dialogue voice stream and the neck surface video stream of the patient during the dialysis interval are synchronously captured, from which the thirst associated keyword frequency, the voice dryness degree characteristics, and the frequency and amplitude profile characteristics of the swallowing action are analyzed to generate a behavior representation index set. The thirst state benchmark vector and the behavior representation index set are cross-modally associated and mapped to construct a dynamic thirst evaluation network, through processing the continuously input real-time data, an individualized thirst degree trajectory evolving over time is output, and objective, continuous and multi-dimensional thirst state evaluation is realized.

The long-term catheter protection device with the tunnel and the polyester sleeve for hemodialysis comprises a cylinder, a first notch is formed in the cylinder wall of the cylinder in the axial direction, and the inner diameter of the cylinder is the same as the outer diameter of a long-term catheter; the two driving plates are arranged on the two sides of the first notch; the two driving plates control the opening distance of the first notch. By extruding the two driving plates, the first notch in the barrel can be driven to be opened until the barrel can be smoothly arranged on the outer wall of the long-term catheter in a sleeving mode, then the action of extruding the two driving plates is removed, the first notch is reset, the inner wall of the barrel extrudes the outer wall of the long-term catheter, and the long-term catheter can be conveniently sleeved with the barrel. And the long-term catheter is basically restored to normal due to deformation and narrowing caused by clamping.

The invention relates to a hemodialysis machine with a disinfection function, and belongs to the technical field of hemodialysis machines, the hemodialysis machine comprises a control module, a hemodialysis machine body and a disinfection module, the disinfection module comprises a liquid storage tank, a liquid outlet channel and a wiping head, the liquid storage tank is arranged in the hemodialysis machine body or on one side of the hemodialysis machine body, the liquid storage tank is used for storing a disinfectant, and the wiping head is used for wiping the disinfectant. The liquid outlet channel communicates with the liquid storage tank and the wiping head and is used for conveying the disinfectant in the liquid storage tank into the wiping head, and the control module is electrically connected with the liquid outlet channel and is used for instructing the liquid outlet channel to operate; the control module is electrically connected with a blood pump of the dialysis machine body and used for controlling the operation power of the blood pump, a disinfection mode and an operation mode are input into the control module in advance, and when the control module is switched to the disinfection mode, the blood pump is instructed to operate.

The utility model discloses an artery pot device and a blood purification device, and the artery pot device comprises a bottle body, the interior of the bottle body is hollow, a liquid inlet and a liquid outlet which are communicated with the interior of the bottle body are formed in the lower part of the bottle body, and a cylinder is arranged in the bottle body; the sleeve is rotationally arranged on the periphery of the cylinder along the vertical axis, the sleeve is in clearance fit with the cylinder, one end of the sleeve extends towards the bottom of the bottle body, and the other end of the sleeve extends towards the top of the bottle body; the stirring part comprises a plurality of blade sets, the blade sets are distributed in the axial direction of the sleeve, each blade set comprises a plurality of blades distributed in the circumferential direction of the sleeve, and the height of the first blade set corresponds to that of the liquid inlet, so that blood flowing in from the liquid inlet acts on the blades of the first blade set, and the first blade set is driven to rotate. The risk of blood coagulation in the arterial kettle can be reduced, replacement liquid injected for hemodiafiltration treatment can be fully mixed with blood, and the safety of blood purification treatment is improved.

The utility model belongs to the technical field of medical instruments, and particularly discloses a central venous catheter end protection device which comprises a base, one end of the base is fixedly communicated with a catheter, and the other end of the base is fixedly communicated with a first hose and a second hose. Compared with a traditional mode that medical gauze is wound, the medical staff can insert the sealing plug into the end opening, so that the end opening of the central venous catheter is protected, meanwhile, compared with a traditional mode that medical gauze is wound, occupied space is small, traveling activities of a patient are not affected, use is convenient, and a hemodialysis fistulization opening in the neck of the patient and the end of a central venous catheter for hemodialysis are wrapped and covered by the device, so that use is more convenient. Compared with the prior art, the sealing plug is simple in structure, attractive in appearance, high in practicability and good in using effect, in addition, a patient or a medical worker only needs to stir the sliding block when disassembling and assembling the sealing plug and the port, and compared with a traditional threaded rotary knob type, the sealing plug and the port are more convenient to install.

The invention discloses blood filtration replacement liquid as well as a preparation method and application thereof. The displacement liquid comprises low molecular weight heparin calcium, prostaglandin E1, prostacyclin, electrolyte with specific concentration, glucose and an interleukin-1 receptor antagonist. The preparation method comprises the following steps: weighing the raw materials according to the proportion, dissolving to a constant volume, removing pyrogen and heat, and carrying out aseptic packaging. During clinical application, replacement liquid and blood are filtered according to the replacement rate of 1: 1-2: 1 according to the condition of a patient, 4-6 hours each time and 2-3 times each week, and related indexes are monitored. Animal tests show that the replacement liquid has good safety under the effective dosage, and has potential influence on part of organs under the high dosage. A stability test shows that the compound can be stably stored under a certain condition. The invention provides the replacement liquid which can achieve anticoagulation and blood vessel protection, maintain electrolyte balance and relieve inflammatory response, is expected to improve the prognosis of hemodialysis patients, and has important clinical significance and wide application prospects.

The invention relates to the technical field of hemodialysis monitoring, and provides a blood oxygen saturation monitoring method and device for a hemodialysis pipeline based on double optical paths, and the blood oxygen saturation monitoring method comprises the following steps: S1, obtaining the transmitted light intensity I1 red light of red light penetrating through a narrow-diameter section of the hemodialysis pipeline and the transmitted light intensity I1 infrared light of infrared light penetrating through the hemodialysis pipeline; s2, acquiring transmitted light intensity I2 red light of the red light penetrating through the wide-diameter section of the hemodialysis pipeline and transmitted light intensity I2 infrared light of the infrared light penetrating through the hemodialysis pipeline; s3, a data buffer area is constructed, N recent light intensity sampling values are stored in the data buffer area, the arithmetic average value of data in a data set is calculated, and representative narrow-diameter section red light transmission light intensity I1 red light avg (t), narrow-diameter section infrared light transmission light intensity I1 infrared avg (t), wide-diameter section red light transmission light intensity I2 red light avg (t) and wide-diameter section red light transmission light intensity I1 infrared avg (t) at the moment t are obtained; and the oxyhemoglobin saturation SpO2 is calculated. The device has the advantages that in-vitro blood oxygen saturation monitoring is achieved, and accuracy is improved.