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201 results about "Internal fistula" patented technology

A fistula is an irregular passageway or connection between an organ, vessel or part of the intestine and another structure, which may be caused by injury or develop as a result of surgery. There are different types of fistula and they can develop all over the body. Fistula affecting the digestive system can be internal or external.

Internal fistula postoperative rehabilitation nursing method and system based on multi-mode intelligent analysis

The invention provides a multi-mode intelligent analysis internal fistula postoperative rehabilitation nursing method and system, and belongs to the technical field of medical nursing and artificial intelligence crossing. The application aims to solve the problems of single monitoring dimension, subjective risk judgment and static homogenization of the nursing scheme in the existing internal arteriovenous fistula postoperative nursing. The method comprises the following steps: acquiring multi-modal data related to a wound state and a hemodynamic state of an internal arteriovenous fistula; processing the multi-modal data to generate standardized feature data which can be analyzed; generating a risk assessment result about the health condition of the internal arteriovenous fistula; and a preset nursing scheme is dynamically adjusted based on a risk assessment result. According to the method and the device, multi-modal data are fused and an intelligent algorithm is used for collaborative analysis, so that the accuracy and early stage of risk identification can be realized, the individuation and high efficiency of a nursing scheme are realized, and the nursing quality is improved.
Owner:DONGZHIMEN HOSPITAL OF BEIJING UNIV OF CHINESE MEDICINE

Patient internal fistula risk early warning method, system and equipment based on B ultrasonic data and medium

The invention relates to a patient internal fistula risk early warning method, system and device based on B-mode ultrasound data and a medium. The method comprises the following steps: collecting B ultrasonic and clinical historical data of a patient and performing multi-modal preprocessing; function grading is achieved through an internal fistula grading model on the basis of B-mode ultrasound key features and converted into coding features; constructing an internal fistula risk causal graph through a causal discovery algorithm in combination with the coding features and clinical data; quantifying the causal effect between variables through a causal effect estimation method based on a causal graph; in combination with a causal diagram and an effect result, personalized risk early warning and attribution analysis results are generated through anti-factual reasoning, so that accurate and explainable internal fistula risk early warning is realized, and a basis is provided for clinical intervention.
Owner:THE FIRST AFFILIATED HOSPITAL ZHEJIANG UNIV COLLEGE OF MEDICINE

Multi-mode intelligent internal arteriovenous fistula monitoring and early warning method and device and computer equipment

The invention relates to a multi-mode intelligent internal arteriovenous fistula monitoring and early warning method and device and computer equipment. The method comprises the following steps: acquiring acousto-optic pressure and temperature information of internal arteriovenous fistula of a patient, and identifying data change distribution information corresponding to each monitoring type of the internal arteriovenous fistula based on the acousto-optic pressure and temperature information; based on the data change distribution information corresponding to each monitoring type, identifying an internal fistula state analysis result of the internal arteriovenous fistula through a data analysis strategy of each monitoring type; and on the basis of the internal fistula state analysis result of the internal arteriovenous fistula, predicting internal fistula state trend information of the patient, and on the basis of the internal fistula state trend information of the patient, generating an internal fistula early warning result of the patient. By adopting the method, the monitoring comprehensiveness of medical staff on internal arteriovenous fistula can be improved.
Owner:BEIJING TSINGHUA CHANGGUNG HOSPITAL

Method and system for evaluating thrombus risk before internal arteriovenous fistula operation

The invention provides a method and a system for evaluating thrombus risk before an internal arteriovenous fistula operation, and relates to the field of medical data processing, and the method comprises the following steps: based on the medical history information, treatment information and postoperative thrombus monitoring information of a plurality of internal arteriovenous fistula operation patients, evaluating the thrombus risk before the internal arteriovenous fistula operation; determining a plurality of thrombus risk related diseases, thrombus risk related operations and thrombus risk related drugs, and determining a plurality of internal arteriovenous fistula operation patient types; based on the medical history information and the treatment information of the patient to be subjected to the internal arteriovenous fistula operation, the type of the patient to be subjected to the internal arteriovenous fistula operation is determined, and preoperative detection information of the patient to be subjected to the internal arteriovenous fistula operation is obtained; and performing thrombus risk assessment before the internal arteriovenous fistula operation by combining the key preoperative detection factor corresponding to the type of the internal arteriovenous fistula operation patient and the influence weight corresponding to the key preoperative detection factor, thereby improving the efficiency and accuracy of thrombus risk assessment before the internal arteriovenous fistula operation.
Owner:THE AFFILIATED HOSPITAL OF SOUTHWEST MEDICAL UNIV

Auxiliary positioning device for internal fistula puncture

The invention discloses an internal fistula puncture auxiliary positioning device, and belongs to the field of puncture auxiliary devices. Comprising a U-shaped fixing frame, adjusting transverse grooves are formed in the opposite sides of the upper surface of the U-shaped fixing frame, adjusting blocks are slidably connected to the interiors of the two adjusting transverse grooves, fixing plates are fixedly connected to the upper surfaces of the two adjusting blocks, and adjusting vertical grooves are formed in the opposite sides of the two fixing plates; an adjusting transverse groove in a U-shaped fixing frame is matched with an adjusting screw rod and a belt wheel transmission assembly, an adjusting block can be driven to drive an arc-shaped plate to stably move front and back by rotating a stirring disc, preliminary positioning of a puncture area is achieved, an arc-shaped groove of the arc-shaped plate is matched with a clamping plate, a guide plate can be driven to slide left and right in the direction of a blood vessel, and the internal fistula blood vessel is accurately aligned; the height of the guide plate can be quickly adjusted by adjusting the combination of the vertical groove, the first insertion rod and the U-shaped pressing plate, and the device is adaptive to arm thicknesses and blood vessel depths of different patients.
Owner:TAIYUAN IRON & STEEL (GRP) CO LTD GENERAL HOSPITAL

Internal arteriovenous fistula monitoring method and system

The invention provides an internal arteriovenous fistula monitoring method and system, and the method comprises the steps: extracting feature parameters based on the blood vessel pulsation sound of an internal arteriovenous fistula region, preprocessing the feature parameters, and inputting the preprocessed feature parameters into a first prediction model, thereby obtaining a stenosis probability; extracting risk factors from a biochemical examination result, preprocessing the risk factors, and inputting the preprocessed risk factors into a second prediction model to obtain a sequence of contribution degrees of the risk factors to the internal fistula stenosis from high to low; the stenosis probability and the contribution degree of the first L risk factors are input into a risk assessment model, the internal arteriovenous fistula risk level is obtained, and the risk assessment model is integrated based on a TOPSIS multi-index weighting method weighted by equal weights. The invention provides an internal arteriovenous fistula monitoring method and system which are used for solving the problems that a palpation method is greatly influenced by experience and subjective judgment of medical staff, and an ultrasonic monitoring method is expensive in equipment, large in size, complex in operation, not suitable for daily monitoring and incapable of providing a remote monitoring function.
Owner:THE CENTRAL HOSPITAL OF WUHAN (WUHAN NO 2 HOSPITAL WUHAN CANCER RESEARCH INSTITUTE)

A nephrology hemodialysis auxiliary device

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.
Owner:SHANGHAI TONGJI HOSPITAL

Removal device for minimally invasive rejection of subcutaneous tissue

The utility model relates to a removing device for removing subcutaneous tissue in a minimally invasive mode, and belongs to the technical field of medical instruments. Comprising a handle which is provided with a mounting groove; the first end of the connecting assembly is detachably connected with the mounting groove; the planing piece is detachably arranged at the second end of the connecting assembly and used for removing subcutaneous tissue. According to the internal fistula subcutaneous tissue planer, the planing sheet extends into the subcutaneous tissue for planing, part of the subcutaneous tissue is cut off, and the thickness of the internal fistula blood vessel talus is reduced.
Owner:WENZHOU GERIATRIC HOSPITAL CO LTD

Auxiliary developing device and method for internal arteriovenous fistula puncture blood vessel

The invention relates to the technical field of blood vessel developing, and discloses an internal arteriovenous fistula puncture blood vessel auxiliary developing device and method.The internal arteriovenous fistula puncture blood vessel auxiliary developing device comprises a base, a fixedly-connected clamping base is arranged at the top of the base, fixedly-connected mounting boxes are arranged on the two opposite side walls of the clamping base, and the bottoms of the mounting boxes are fixedly connected with the top of the base; wherein a first supporting plate fixedly connected is arranged on the side wall of one mounting box, the bottom of the first supporting plate is fixedly connected with the top of the base, movable clamping frames are symmetrically arranged at the top of the base, a rotatable adjusting mechanism is arranged at the top of the base and comprises a rotatable driving shaft, a first external spline and a gear, and the driving shaft is located in the mounting box. The projection mechanism can present the real blood vessel direction of the patient in real time.
Owner:SUZHOU MUNICIPAL HOSPITAL +1

An arteriovenous fistula vascular lining stent and methods of use thereof

The application discloses an arteriovenous fistula blood vessel lining support and a use method thereof, and the arteriovenous fistula blood vessel lining support has a three-way pipe structure; the axes of two passages in the three-way pipe structure are on a straight line to form a straight pipe, and the axis of the other passage has a variable included angle with the straight line formed by the axes of the first two passages to form a bifurcated pipe; the straight pipe and the bifurcated pipe jointly form a three-way shape of the support with an inner cavity and have optional additional structures near each port; the straight pipe is used for being implanted into an arterial blood vessel; and the bifurcated pipe is used for sleeving a venous blood vessel which needs to be connected. After the arteriovenous fistula blood vessel lining support is embedded, the occurrence of turbulent flow is effectively reduced, blood composition deposition is reduced, the probability of vascular hyperplasia and vascular stenosis is reduced, the arteriovenous fistula maturation time is shortened, and the use time of the fistula is prolonged.
Owner:NANJING UNIV

Safe internal arteriovenous fistula puncture needle

The utility model provides a safe internal arteriovenous fistula puncture needle, which relates to the technical field of medical instruments and comprises a puncture needle main body, the outer surface of the puncture needle main body is provided with a flow guide tube, one end of the flow guide tube is connected with a needle head, the outer surface of the flow guide tube is sleeved with a threaded ring, and the outer surface of the threaded ring is sleeved with a protective shell. One end of the protective shell is fixedly connected with a limiting plate, a first threaded groove is formed in one end of the protective shell, and a second threaded groove is formed in the other end of the protective shell. According to the puncture needle, normal proceeding of dialysis work is guaranteed by arranging the puncture needle body, an installation scene is provided for the protective shell by arranging the threaded ring, and the protective shell is fixed by arranging the threaded groove to be in threaded connection with the threaded ring, so that normal proceeding of puncture work is guaranteed; by arranging the limiting plate, the moving range of the protective shell is limited, and it is guaranteed that normal proceeding of puncture work is not affected.
Owner:THE SIXTH MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL

Hemodialysis patient vascular health assessment and arteriovenous fistula intelligent nursing system

PendingCN122460908ADecreased mean arterial pressureArteria iliaca interna
The present application relates to the technical field of blood monitoring, in particular to a vascular health assessment and intelligent nursing system for hemodialysis patients. The degree of venous reflux obstruction is determined based on the change trend and degree of venous pressure data within each dialysis period, and the degree of inconsistency between the change trends of venous pressure data and transmembrane pressure data. The degree of arterial supply obstruction is determined based on the change trend and degree of arterial pressure data within each dialysis period. The suspected internal fistula obstruction period is determined based on the change trend of the degree of venous reflux obstruction and the degree of arterial supply obstruction. The nursing intervention prompting degree of the patient to be tested is determined based on the relationship between the blood flow data and arterial pressure data of each dialysis stage of the patient to be tested within the suspected internal fistula obstruction period, and the blood flow data of the non-dialysis stage. The internal fistula nursing scheme is determined. The present application realizes early warning of internal fistula dysfunction based on the change of venous and arterial pressure of the blood circulation loop during dialysis.
Owner:THE SECOND AFFILIATED HOSPITAL OF GUANGZHOU MEDICAL UNIVERSITY

Internal arteriovenous fistula exerciser

The utility model relates to the technical field of internal fistula exercisers, in particular to an internal arteriovenous fistula exerciser which comprises an elbow seat, an air bag is arranged on the upper surface of the elbow seat, a grabbing mechanism convenient for a patient to grab and exercise internal fistula is arranged at the front end of the elbow seat, a telescopic groove is formed in the front end of the elbow seat, a telescopic sleeve is inserted into the telescopic groove in a sliding mode, and the telescopic sleeve is connected with the elbow seat. And the connecting frame is inserted into the front end of the telescopic sleeve in a sliding manner. According to the internal arteriovenous fistula exerciser, a one-way air inlet valve is further arranged on an air bag, so that an inflatable cuff is conveniently controlled to expand to extrude arms to promote vasodilation, arteriovenous blood deposition of upper limbs is achieved, and therefore the filling degree of internal fistula blood vessels is increased, and a telescopic sleeve connected to the front end of an elbow seat and a connecting frame are connected with an exerciser body through a rotating rod; meanwhile, the four-finger fixing belt and the thumb fixing belt are arranged on the upper side and the lower side of the exerciser main body, so that patients with different arm lengths can conveniently hold the exerciser main body for exercise.
Owner:SHUOZHOU CITY SHUOCHENG DISTRICT PEOPLES HOSPITAL (SHUOZHOU CITY PEOPLES HOSPITAL)

Hemodialysis internal fistula errhysis monitoring device

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.
Owner:武威市人民医院

Internal arteriovenous fistula power loss early warning system based on fusion of miniature ultrasound and biological impedance

The invention particularly relates to an internal arteriovenous fistula power loss early warning system based on fusion of miniature ultrasound and biological impedance, and relates to the technical field of medical instruments. A data processing module; and an intelligent early warning module. According to the invention, through the integrated design of the miniature ultrasonic probe module and the biological impedance electrode module, the synchronous measurement of the blood flow velocity and the blood vessel volume change is realized; wherein the PMUT array is combined with a three-axis accelerometer to correct the angle of a probe in real time, angle errors caused by operation are avoided, meanwhile, the biological impedance electrode measures the blood vessel volume through alternating current, an impedance diameter model is dynamically updated through AI, the cross sectional area of the blood vessel is calculated, and traditional static calibration is replaced; the problem of insufficient precision of a single mode is solved, more reliable hemodynamic data is provided for clinic, and the abnormal state of the blood vessel is recognized in an early stage.
Owner:HANGZHOU XIXI HOSPITAL

Ultrasonic guidance internal arteriovenous fistula puncture positioning system

The utility model belongs to the technical field of puncture guiding devices, and particularly relates to an ultrasonic guiding internal arteriovenous fistula puncture positioning system which comprises a mounting frame, an adjusting assembly and a speed limiting assembly. The speed limiting assembly comprises a speed regulating bin, a push rod, a limiting piece and a speed regulator. One end of the adjusting assembly is connected with the mounting frame, and the other end is fixedly connected with the outer wall of the speed adjusting bin; one end of the push rod is inserted into the speed regulation bin; an exhaust pipe is arranged at one end of the speed regulation bin away from the push rod; an exhaust hole is formed in the exhaust pipe; one end of the speed regulator is inserted into the exhaust pipe and shields part of the exhaust hole; a puncture channel is arranged in the push rod; the puncture needle is fixed in the puncture channel through the limiting piece. The device has the advantages that the push rod is pushed to drive the puncture needle to move, and the push rod pushes out gas in the speed regulation bin through the exhaust hole. Due to the fact that the area of the exhaust hole is limited, the speed of gas exhausted through the exhaust hole is limited, the moving speed of the push rod in the speed adjusting bin is limited, and the puncture needle can be implanted at a constant speed.
Owner:核工业四一六医院

Arteriovenous fistula protection restraint

1. The name of the design product: arteriovenous fistula protection restraint. 2. The use of the design product: to prevent the displacement of the arteriovenous fistula puncture needle and reduce the risk of needle loss. 3. The design points of the design product: in the main view of component 1. 4. The picture or photo that best indicates the design points: the main view of component 1. 5. Component 1 is a thin product, and the top view, bottom view, left view and right view of component 1 are omitted; component 2 is a hollow structure through front and back, and the existing view can clearly show it, so the top view and bottom view of component 2 are omitted.
Owner:WEINAN CENT HOSPITAL

Portable intelligent auscultation instrument for internal arteriovenous fistula for hemodialysis

The invention discloses an internal arteriovenous fistula portable intelligent auscultation instrument for hemodialysis, and relates to the technical field of medical equipment. An alarm, three auscultation result indicating lamps with different colors, an equipment switch and an electric quantity indicating lamp are arranged on the auscultation instrument main machine, an equipment power supply, a control module, a wireless data transmission module and an AI noise recognition chip are arranged in the auscultation instrument main machine, and an auscultation head and a conduction tube are arranged on the outer side of the auscultation instrument main machine. And an auxiliary fixing mechanism is arranged on the stethoscope head. A noise reduction acoustic filter screen is arranged in the auscultation head to accurately filter interference, a signal amplification module at the tail end of a conduction tube amplifies weak blood flow sound, an AI noise recognition chip with a clinical noise spectrum pre-recorded is matched, the internal fistula noise state can be automatically recognized without depending on professional auscultation experience, visual feedback is achieved through a three-color auscultation result indicator lamp, linkage early warning is matched with an alarm, and the internal fistula noise state can be automatically recognized. Common medical care can quickly complete clinical screening, and a patient can also perform self-examination at home, so that the risks of missed judgment and misjudgment are thoroughly avoided.
Owner:THE NAVAL MEDICAL UNIV OF PLA

Internal fistula side limb fixator for hemodialysis patient during defecation

ActiveCN224112851UPrevent internal bleedingavoid pullingRestraining devicesDialysis systemsHemodialysisInternal bleeding
The utility model discloses an internal fistula side limb fixer for a hemodialysis patient during defecation, which comprises a first fixing plate and a second fixing plate, a plurality of fixing seats are arranged on the first fixing plate and the second fixing plate, arc-shaped limiting rings are arranged on the fixing seats, and restraint straps are arranged in the arc-shaped limiting rings; shoulder straps are arranged at one ends of the first fixing plate and the second fixing plate. When the fixator is used, an internal fistula side limb can be placed in the fixator, and internal hemorrhage caused by excessive movement of the limb is prevented; the contact surface between the inner side of the fixator and the limbs is made of breathable perforated fabric which is comfortable and skin-friendly; a restraint strap and a first hook-and-loop fastener are arranged outside the fixator, the size of the fixator can be adjusted to be proper according to the size of the arm circumference of a patient, the shoulder strap is arranged, the limb on the internal fistula side can be kept in a straightened state when the patient goes to the toilet, and a puncture needle is better protected; the second hook-and-loop fastener can prevent the puncture needle from slipping due to the fact that the puncture needle is pulled when the patient goes to the toilet.
Owner:JIAXING CITY NO 2 HOSPITAL

Hemodialysis internal arteriovenous fistula thermal image intelligent analysis and early warning system and method thereof

The invention relates to the technical field of medical image processing, in particular to a hemodialysis internal arteriovenous fistula thermal image intelligent analysis and early warning system and method, and the system comprises an infrared thermal imaging device, an image processing device, a server, a mobile device and a cloud analysis platform. The method is characterized in that the image processing equipment comprises a thermal image analysis module, a dynamic image analysis module and a data integration module, the thermal image analysis module introduces a differential geometry theory, maps an internal fistula thermal image into a parameterized temperature manifold, and obtains a parameterized temperature manifold through geodesic analysis and vector field topology analysis; calculating a geodesic deviation index and a topological characteristic change rate index, and accurately evaluating the internal fistula function state; the dynamic image analysis module calculates parameters such as the blood vessel outer diameter, the blood flow and the heat conduction index; the data integration module collects data of all the modules to form comprehensive evaluation, remote evaluation guidance of experts is supported through a remote consultation function, early warning is achieved based on time sequence topology changes, and internal fistula function deterioration is predicted 7-10 days in advance.
Owner:THE AFFILIATED CENT HOSPITAL OF DALIAN UNIV OF TECH (DALIAN CENT HOSPITAL)

Internal arteriovenous fistula function early warning method and system based on intelligent audio analysis

The invention relates to the technical field of blood vessel health monitoring, and discloses an internal arteriovenous fistula function early warning method and system based on intelligent audio analysis, and the method comprises the steps: obtaining audio data; judging whether the audio data meets a recording condition or not; when the audio data meets the recording condition, inputting the audio data into a preset feature extraction model to obtain comparison features which are used for reflecting the overall energy, amplitude, tone, narrow state, stability and regularity of the signal; obtaining the verified internal leakage audio representing the health state so as to set a health baseline; judging whether the internal arteriovenous fistula function is abnormal or not based on the health baseline and the comparison features; and performing internal arteriovenous fistula function early warning according to a judgment result. The method has the advantages that the abnormal signal recognition accuracy and prediction capacity are remarkably improved, the recognition precision of the internal arteriovenous fistula monitoring equipment is improved, an alarm can be given out immediately when abnormity is detected, and a patient and medical staff are reminded to take diagnosis and treatment measures in time.
Owner:HUIDONG COUNTY PEOPLES HOSPITAL (HUIDONG COUNTY MEDICAL COMMUNITY GENERAL HOSPITAL)

Medical catheter

ActiveCN224686148UGonial angleCatheter
The utility model provides a kind of medical catheter, medical catheter includes joint and catheter, catheter includes main pipe section and first pipe section, one end of main pipe section is connected with joint, the other end of main pipe section is connected with first pipe section, and the included angle between the center line of main pipe section and the center line of first pipe section is alpha, wherein 120 °≤alpha < 150 °. The medical catheter of the utility model embodiment, the included angle between the center line of main pipe section and the center line of first pipe section is alpha, wherein 120 °≤alpha < 150 °, this particular angle range fully considers the anatomical features of arteriovenous fistula anastomotic mouth and the actual demand of clinical operation, can effectively adapt to the spatial structure and angle characteristics of anastomotic mouth in most cases, ensure that catheter can smoothly enter and cross anastomotic mouth, and then improve the success rate and efficiency of operation.
Owner:THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY

Accurate and controllable internal arteriovenous fistula function training instrument

The utility model belongs to the technical field of rehabilitation training, and particularly relates to a precise and controllable internal arteriovenous fistula function training instrument which comprises an arm binding belt, an inflation and deflation component comprises an air bag connected in the arm binding belt, a pressure receptor is connected in the air bag, the arm binding belt is connected with a miniature air pump through an air pipe, a PLC control main board is arranged in the arm binding belt, and a pressure sensor is arranged in the miniature air pump. The PLC control main board is connected with the inflation and deflation component and controls the working state of the inflation and deflation component, the air pipe is connected with an electric control air valve for controlling the opening and closing state of the air pipe, the pressure sensor and the electric control air valve are both connected with the PLC control main board, air is supplied to the air bag in real time or air in the air bag is released through the arranged miniature air pump, and the inflation and deflation state of the air bag is controlled. And the timer can record the training time in real time, and the counting chip can be matched with the PLC control main board within the specified training time to control the cycle index of the inflation and deflation component, so that the training frequency is controlled, and the functional exercise of the internal arteriovenous fistula is standardized.
Owner:XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV

Internal arteriovenous fistula monitoring bracelet for hemodialysis patient

The utility model relates to an internal arteriovenous fistula monitoring bracelet for a hemodialysis patient. The internal arteriovenous fistula monitoring bracelet comprises a bracelet main body and a bracelet wrist strap, the bracelet main body is composed of a shell, a touch display screen, a power supply, a charging interface, a first photoelectric tube, a second photoelectric tube, a main control circuit board, a temperature monitoring chip and a heat insulation pad; a heat insulation pad is laid on one side, close to the inner side, of the bottom of the shell; a temperature monitoring chip is mounted between the shell and the heat insulation pad; a sensing module is arranged on the first wrist strap; the sensing module is provided with a first laser, a second laser, a third photoelectric tube, a fourth photoelectric tube, a sound sensor, a vibrating diaphragm and a sponge. Scattering light intensity signals generated after laser passes through thrombus are detected in real time through the photoelectric tube, and the internal fistula tremor feeling is monitored in real time through the sound sensor; by adopting a photoacoustic combined detection mode, the reliability of detection is improved, the false alarm rate of internal fistula blockage is reduced, and the device has the advantages of simplicity in operation, portability and accurate diagnosis.
Owner:ZHEJIANG NORMAL UNIV

Puncture needle extraction device

1. The name of the design product: puncture needle pulling device. 2. The use of the design product: internal fistula puncture needle pulling device for hemodialysis patients. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.
Owner:何廷蕾

Fistula abnormity identification model training method, identification method, system and equipment

The invention provides a training method, a recognition method, a system and equipment for a fistula anomaly recognition model. The training method comprises the steps that a training data set is acquired, the training data set comprises a plurality of pieces of sample data, and each piece of sample data comprises fistula anomaly recognition influence parameters and corresponding sample anomaly recognition results; wherein the fistula abnormity identification influence parameters comprise fistula tremor signals and blood flow and / or blood vessel diameter; and training a preset model based on the plurality of sample data to obtain a fistula anomaly recognition model. According to the method, the fistula tremor signal, the blood flow and / or the blood vessel diameter and the corresponding sample anomaly recognition result are jointly used as the sample data to train the model, the accuracy of the fistula anomaly recognition model is improved, anomaly recognition can be performed on the fistula in real time, accurate evaluation about the internal arteriovenous fistula blood vessel function is provided for doctors, and the accuracy of the fistula anomaly recognition model is improved. Therefore, various complications of internal arteriovenous fistula can be timely and accurately treated, and the safety of a patient is guaranteed.
Owner:JIANGXI JEMINCARE GRP CO LTD

Tourniquet for pressing internal arteriovenous fistula puncture point and monitoring blood leakage by inflating balloon

The invention discloses a tourniquet for pressing an internal arteriovenous fistula puncture point by an inflatable balloon and monitoring blood leakage, an air bag is arranged in the tourniquet, a main control chip, a two-way micro proportional valve and a charging chip are integrated on a micro PCB (printed circuit board), the micro PCB is fixed in a control box on the inner side of the tourniquet, a 3V micro diaphragm pump is fixed in the control box and close to the micro PCB, and the charging chip is connected with the main control chip. An air outlet of the 3V miniature diaphragm pump is connected to the air bag through a miniature silicone tube and a one-way valve, an air outlet of the bidirectional miniature proportional valve is connected to the air bag through a silicone tube and a pagoda joint, and the thin polymer lithium battery is fixed to the position, close to the miniature PCB, in the control box and connected to the charging chip through a wire. The switch button is fixed on the outer side of the tourniquet, the blood leakage detection sensor is fixed in the center of the inner side of the air bag, and a wire of the blood leakage detection sensor is connected with the main control chip through the edge of the air bag. According to the invention, regular monitoring of internal fistula puncture point pressing can be realized, and the safety of internal arteriovenous fistula home maintenance is improved.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION OCCUPATIONAL DISEASE PREVENTION & CONTROL RES INST

Hemodialysis patient internal fistula pressing hemostasis self-adaptive regulation and control system fused with NB-IoT technology

The invention relates to the technical field of intelligent nursing, in particular to a hemodialysis patient internal fistula pressing hemostasis self-adaptive regulation and control system fused with the NB-IoT technology, and the system comprises a sensor module which collects internal fistula puncture point pressure, local temperature and patient body movement data; the processing module is used for outputting a pressure regulation and control instruction through a self-adaptive control algorithm based on the internal fistula elasticity modulus, the blood coagulation function and the historical hemostasis threshold value of the patient after preprocessing the data, and has a fuzzy PID strategy and an abnormal value elimination function; the execution module adjusts the pressing pressure according to the instruction, and a feedback sensor is arranged in the execution module to form closed-loop control; the NB-IoT communication module encrypts and uploads data to a cloud platform through AES-128, and supports remote viewing and regulation; the power module is designed with low power consumption, and the endurance is longer than or equal to 7 days. Through real-time monitoring, self-adaptive control and remote interactive closed loop, the hemostasis success rate is increased to be larger than or equal to 92%, the subcutaneous hematoma occurrence rate is reduced to be smaller than or equal to 3%, the safety of a patient and the service life of internal fistula are guaranteed, and diagnosis and treatment convenience is improved.
Owner:CHUXIONG YI AUTONOMOUS PREFECTURE PEOPLES HOSPITAL

Anti-infection monitorable biomedical hemodialysis internal arteriovenous fistula nursing kit

The invention relates to the technical field of nursing suites, and discloses an anti-infection monitorable biomedical hemodialysis internal arteriovenous fistula nursing suite which comprises a dialysis machine body, a fixing block is fixedly connected to the left side of the dialysis machine body, and a fixing table is rotatably connected to the inner wall of the fixing block; the left side of the dialysis machine body is fixedly connected with a U-shaped shell, the bottom of the fixing table is rotatably connected with a hinge plate, the inner wall of the hinge plate is rotatably connected with a hinge block, the left side of the dialysis machine body is slidably connected with the hinge block, the top of the fixing table is fixedly connected with a fixing plate, and the top of the fixing plate is provided with a limiting frame. According to the nursing kit, the nursing kit stored in the U-shaped shell can be sterilized and disinfected, cross infection caused by contamination of the kit during subsequent operation of medical staff or reuse of a patient is avoided, and the safety of a user is guaranteed.
Owner:BAODING SECOND CENT HOSPITAL

Side end internal arteriovenous fistula stent and use method

The invention relates to a side-end internal arteriovenous fistula stent and a use method, and belongs to the technical field of implantable medical equipment. Comprising a transfer pipe, and a fixing groove is formed in the tail end of the transfer pipe; the clamping block is arranged in the fixing groove in a sliding manner; a stent body having a connection passage; the two first fixing claws are oppositely installed at one end of the connecting channel, positioning holes are formed in the first fixing claws, the positioning holes are connected with the clamping blocks in a clamped mode, and the space between the first fixing claws is used for assisting the second fixing claws in fixing the blood vessel wall; the two second fixing claws are oppositely mounted at the other end of the connecting passage, and the second fixing claws are used for abutting against and being fixed to the blood vessel wall after being released. The technical problems that in the prior art, due to the fact that a spiral classifier is used for conducting, the blood flow volume after communication is small, the pressure in arteriovenous fistula blood vessels is high, thrombus is easily formed, and thrombus is easily blocked in a support are solved.
Owner:CHENGDU LINGCHUANG MEDICAL EQUIPMENT CO LTD