108 results about "Internal fistula" patented technology

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.

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 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.

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.

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.

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 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.

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.

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.

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.

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.

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.

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.

The utility model provides a multifunctional internal fistula thrombus taking-out device which comprises a first pipe fitting, a second pipe fitting, a third pipe fitting and a fourth pipe fitting. A second pipe fitting; the thrombolysis pipe fitting is arranged on the outer side of the second pipe fitting in a sleeving mode and is internally hollow to form a medicine cavity, and a plurality of medicine outlet holes communicating with the medicine cavity are formed in the outer wall of the far end of the thrombolysis pipe fitting in a penetrating mode; the crushing mechanism comprises a positioning piece connected with the far end of the thrombolysis pipe fitting and movably arranged on the outer side of the second pipe fitting in a sleeving mode, a driving pipe movably arranged on the outer side of the thrombolysis pipe fitting in a sleeving mode and located on the near end side of the positioning piece, and a plurality of crushing pieces connected between the far end of the driving pipe and the positioning piece, and the positioning piece is limited by a limiting structure when moving towards the far end. A plurality of thrombus in the internal fistula blood vessel can be effectively treated, the incision of the thrombus extraction operation can be greatly reduced, and the damage to the blood vessel is reduced.

The invention relates to the technical field of medical assistors, and discloses an external protection and compression assistor for a vascular access of a dialysis patient, the external protection and compression assistor comprises an outer protection shell, a structural groove is formed in the outer protection shell, and a gradient pressure reduction mechanism is arranged in the structural groove. According to the external protection and compression assist device for the vascular access of the dialysis patient, a pressing block is pressed to drive a rack to press downwards, kinetic energy is transmitted to a large gear and an escape wheel through a first gear, a rotating shaft and a small gear, and meanwhile energy storage is completed through a vortex curling strip; after the touch type clamping block is unlocked, the vortex curling hair strip releases energy, the continuous rotating motion is converted into intermittent stepping rotation through periodic meshing of the escapement fork and the escapement wheel, the first rack drives the pressing plate to return upwards extremely slowly in a sectional mode, it can be guaranteed that the pressure is gradually decreased in a stepped mode along with time, and therefore the effect that the pressure is gradually decreased is achieved. The operation habit of slow hand loosening during manual compression is simulated, effective hemostasis of a puncture point is ensured through initial high pressure, and the internal fistula tremor feeling is maintained through subsequent gradient pressure reduction.

The invention relates to the technical field of internal fistula monitoring, in particular to an internal fistula pressurization exercise monitoring method and system based on a swarm intelligence algorithm, and the method comprises the steps: obtaining multi-dimensional real-time monitoring data and internal fistula anatomical structure information of a target object in the internal fistula pressurization exercise process, carrying out the extraction and analysis of the multi-dimensional real-time monitoring data, and obtaining a multi-dimensional real-time monitoring result; determining current state evaluation parameters of internal fistula exercise; according to the state evaluation parameters and the historical exercise data, calculating the importance weight of each monitoring node by adopting a swarm intelligence algorithm so as to determine a key monitoring node set of internal fistula exercise; according to the internal fistula anatomical structure information, the sensing coverage range of the key monitoring node set is analyzed, and the space coverage boundary condition is determined. According to the method, the importance weight of each monitoring node is calculated through the swarm intelligence algorithm, the internal fistula anatomical structure information is combined, the monitoring node set and the monitoring strategy are optimized, the most critical monitoring node can be determined through the method, and unnecessary data collection is reduced.

The utility model relates to an internal arteriovenous fistula grip strength exerciser structure which comprises a base, a fixed handle and a movable handle. The fixed handle and the movable handle are arranged side by side. The fixed handle is fixedly connected with the base, an extension arm is transversely arranged at the end, close to the base, of the movable handle, the movable handle is hinged to the base through the extension arm, and the rotation direction of the extension arm is coplanar with the fixed handle. An adjusting screw rod is arranged on the extension arm in parallel, a screw rod sleeve is arranged on the adjusting screw rod, a mounting frame is arranged on one side, deviating from the fixed handle, of the base, and the mounting frame is connected with the screw rod sleeve through a spring; a pressure indicating lamp and a pressure triggering assembly for triggering the pressure indicating lamp when being pressed are arranged on the base; according to the utility model, the whole structure is simple, the adjustment is convenient, more refined grip strength adjustment can be realized through the adjusting screw rod, whether the grip strength reaches the standard or not can be prompted to a patient through the cooperation of the pressure triggering assembly and the pressure indicating lamp, and the functions are rich.

The utility model belongs to the technical field of medical instruments, and particularly relates to an internal arteriovenous fistula exercise device. According to the technology, a cuff and a glove are arranged on the upper arm in a sleeving mode, a first air bag is arranged on the inner side wall of the cuff, an extrusion mechanism for pressing the hand is arranged on the glove, and an inflation mechanism for inflating the first air bag is arranged on the first air bag. According to the internal fistula exerciser, the cuff is sleeved on the upper arm, the glove is sleeved on the finger, the arm is extruded after the first air bag is inflated, and the finger is extruded through the glove, so that pressure is generated at the upper end and the lower end of the arm, internal fistula exercise is completed in a mode of replacing manual pressure, and a traditional internal fistula exercise mode is simplified; through extrusion of the first air bag and the gloves, the patient who cannot exercise by himself or herself can perform internal fistula exercise, the exercise compliance of the patient is improved, and the exercise effect is guaranteed.

The invention discloses an internal arteriovenous fistula blood vessel noninvasive intelligent monitor, and belongs to the technical field of medical monitoring equipment. The sensor unit is composed of a photoelectric volume pulse wave sensor, a miniature ultrasonic sensor and a bioelectrical impedance sensor and used for collecting information such as heart rate, blood oxygen saturation, blood flow, angiography, tremor frequency, impedance parameters and vascular tension; the monitoring chip unit carries out amplification, filtering, analog-to-digital conversion and feature extraction on the information; the storage and preprocessing unit is used for realizing real-time storage and standardized processing of data; the communication unit uploads the data to a medical institution end or a cloud end through Bluetooth or Wi-Fi; the power management unit provides power and realizes low-power-consumption control; and the early warning unit performs risk assessment on the data based on an artificial intelligence model, and generates early warning information when a potential anomaly is detected. According to the invention, continuous, non-invasive and intelligent monitoring of internal arteriovenous fistula can be realized, and the early recognition and early warning capability of complications can be improved.

The utility model discloses a kind of surgical limb sling used after arteriovenous fistula operation, including main band body, two arm part supporting assemblies are provided at the both ends of main band body, soft pad band is fixedly sleeved in the middle part of main band body, two short band top ends are fixedly connected on the both sides of soft pad band bottom surface, two short band bottom ends are fixedly connected with bandage side wall;The arm part supporting assembly includes cloth bag, the arm part bandage middle part side wall is fixedly connected in the inside central position of cloth bag, the arm part bandage middle part is fixedly connected with multiple silica gel soft pads on the side away from cloth bag;The bandage of the utility model can be bound in the position of chest axillary or chest lower part, the length of short band is adjusted by cloth band adjusting buckle, the compression force of soft pad band to neck will be borne by bandage part, which makes that compression force not concentrate in neck, patient is more comfortable, arm part supporting assembly uses multiple silica gel soft pad support column patient surgical limb, so that the gap formed between multiple silica gel soft pads can be assisted to ventilate, guarantee that surgical limb fixed position is better in ventilation.

The application relates to the technical field of medical devices, and discloses a portable arteriovenous fistula auscultation terminal and an auscultation system, which comprises a body box, a control box fixedly installed at the middle of the upper end face of the body box, installation boxes fixedly installed at the front and rear end faces of the body box, limit rods slidingly installed at the front and rear sides of the lower end face of the body box, and a sticking pad fixedly installed at the lower end face of the limit rod. The auscultation system further comprises a supporting mechanism arranged at the left and right side walls of the body box, an adjusting mechanism arranged at the inner cavities of the body box, an adsorption mechanism arranged at the left and right side walls of the body box, and a buffer mechanism. The distance between the two supporting rods can be adjusted through the adjusting mechanism, so that the device is suitable for users with different body sizes. Through the arrangement of the supporting mechanism and the adsorption mechanism, the whole device can be stably placed on a table top, so that the stability of the device during use is improved.

The invention belongs to the technical field of vascular access assessment, and relates to a vascular access assessment system and method based on machine learning, and the system employs a layered architecture, integrates follow-up management, postoperative maturity assessment and a machine learning decision support engine, achieves AVF maturity risk grading through multi-parameter adaptive threshold weighted scoring, and improves the assessment accuracy. A personalized training scheme is generated in combination with similar case matching, continuous self-learning is realized based on expert feedback, the problems of subjective evaluation, low efficiency, scheme homogenization and the like in internal arteriovenous fistula management are solved, patient data can be automatically processed, and structured reports and visual charts can be generated in batches; the method improves evaluation accuracy and clinical efficiency, improves patient prognosis, provides data support for medical quality control and scientific research, and is suitable for AVF full-cycle management of end-stage nephropathy hemodialysis patients.

The application provides a traditional Chinese medicine external application method for reducing the risk of fistula fibrosis in dialysis patients, relates to the technical field of clinical application of traditional Chinese medicine, is suitable for the prevention of autologous arteriovenous fistula fibrosis of maintenance hemodialysis patients, can effectively reduce the incidence of complications such as fistula peripheral tissue fibrosis and vascular stenosis, and prolongs the service life of the fistula. The drug stability and skin permeability are improved through optimization of adjuvants, and based on the grouping intervention of maintenance hemodialysis patients, the fistula blood flow and fibrosis improvement are evaluated in combination with color Doppler ultrasound. The application takes the principles of promoting blood circulation to remove blood stasis, dredging collaterals and resolving knots, and detoxification and swelling reduction as the therapeutic principles, prepares a fistula protection ointment by screening and optimizing a traditional Chinese medicine formula, realizes the effects of improving local microcirculation of the fistula, inhibiting fibrous tissue proliferation and reducing inflammatory reactions through external application intervention, thereby reducing the incidence of fistula fibrosis and related complications, prolonging the fistula patency time, simultaneously reducing the treatment cost, and improving the patient tolerance and life quality.

The utility model discloses a multifunctional grip strength exercising device applied after an internal arteriovenous fistula operation. The multifunctional grip strength exercising device comprises an annular grip strength body, wherein the annular grip strength body is used for being extruded by hands of a patient after the internal arteriovenous fistula operation to exercise arm muscles and achieve early maturity of an internal fistula. By means of the time and quantity monitoring system, customized exercise can be conducted on the exercise time and the exercise quantity according to the conditions of a patient, the hands of the patient can be fully exercised, the filling degree of internal arteriovenous fistula of the patient can meet the requirement for clinical use, and meanwhile when the patient conducts corresponding mature exercise of internal fistula, the internal fistula of the patient can be fully exercised. According to the internal fistula training device, medical staff can conduct appropriate monitoring work and can visually know whether a patient conducts effective training or not, the training effect is more ideal, and therefore great convenience is brought to the training work of the patient with mature internal fistula.

The utility model relates to the technical field of internal arteriovenous fistula simulation, and discloses a pressure-adjustable internal arteriovenous fistula simulation device which comprises a pressure adjusting device, a control panel is installed at the top end of the pressure adjusting device, an adjusting column is fixedly connected to one side of the pressure adjusting device, a rotating column is rotatably connected to the interior of the adjusting column, and a pressure sensor is installed on the rotating column. And a connecting column is arranged in the rotating column, and an internal venous fistula simulation device body is installed on one side of the connecting column. According to the pressure-adjustable internal arteriovenous fistula simulation device, a worker rotates a rotating column, so that the rotating column drives an adjusting block and an inserting rod to move, the top of the adjusting block is in contact with the thicker end of an arc block, meanwhile, the adjusting block moves towards one side of a connecting column, the inserting rod is driven to be inserted into an inserting hole to be fixed, and the position of the connecting column is limited; and a worker can conveniently connect and fasten the connecting column, so that the worker can conveniently replace the intravenous fistula simulation device body according to a simulation environment.

The utility model belongs to the technical field of internal fistula needle, concretely is an angle adjustable internal fistula needle, including the hose, the lower end of hose is provided with fixed box, the inside of fixed box is provided with lifting piece, the top fixed connection of lifting piece has the fixed plate, the middle movable joint of fixed plate has the pivot, the bottom outer wall of pivot is provided with the toothing, the top fixed connection of pivot has the clamping piece, the inside of lifting piece is provided with extrusion chamber, the inner wall movable joint of extrusion chamber has the adjusting screw, the other end fixed connection of adjusting screw has the adjusting knob, the outer wall thread connection of adjusting screw has the moving plate, the top fixed connection of moving plate has the lug, the inside of extrusion chamber is provided with the adjusting plate, the bottom fixed connection of adjusting plate has the lug, the top fixed connection of adjusting plate has the connecting strip, the top fixed connection of connecting strip has the locking strip. The utility model under the action of adjusting screw and moving plate makes the angle of pivot and clamping piece fixed, prevents pivot and clamping piece from rotating with the plasticity of hose itself, can adjust the angle of pivot and clamping piece according to the need, improved the applicability.

The present application provides a kind of hemodialysis internal fistula nursing hemostasis device, comprising: adjusting box, adjusting box is fixedly installed with bandage;Lifting assembly, lifting assembly includes sleeve, screw and threaded sleeve, sleeve is rotatably arranged in adjusting box, screw is threadedly arranged in the small hole diameter inside of sleeve, threaded sleeve is threadedly arranged in the large hole diameter inside of sleeve, rotating sleeve can adjust screw and threaded sleeve move up and down, and the moving distance of screw is less than the moving distance of threaded sleeve;Pressing assembly, pressing assembly includes pressing block and pressing ring, pressing block and pressing ring are respectively fixedly installed in the lower end of screw and threaded sleeve, and pressing block is located in the inside of pressing ring.It can solve the technical problems that the pressure applied by the existing internal fistula hemostasis device is usually uniformly distributed in the covered area of pressing plate, which easily leads to the long-term unnecessary excessive compression of the normal blood vessel wall around the puncture point, significantly hinders the internal fistula blood flow, and increases the risk of thrombosis and internal fistula acute occlusion.

This invention discloses a home-based intelligent monitoring and rehabilitation training system, method, terminal, and medium for arteriovenous fistulas (AVFs), relating to the field of smart medical technology. The system includes: home-based devices, a cloud server, and a software interactive management platform. The home-based devices include an AVF monitoring wristband and an intelligent arm exerciser. The AVF monitoring wristband collects AVF blood flow acoustic signature data and provides early warnings to the patient. The intelligent arm exerciser collects motion parameters and provides rehabilitation training and movement guidance functions for the patient. The cloud server processes the collected AVF blood flow acoustic signature data and motion parameters, performs thrombosis risk analysis, and generates a rehabilitation training plan. The software interactive management platform allows real-time viewing of the patient's AVF status, rehabilitation training plan, and exercise records. This invention fills the gap in integrated home-based AVF monitoring, early warning, rehabilitation training, and feedback, providing an intelligent solution for reducing AVF failure rate and extending AVF lifespan.

The present application relates to a kind of intravenous fistula blood vessel sound amplification and pressurized exercise monitoring integrated system.The system includes wearable host device, sound collecting component, sound amplifying component, pressurizing component and control unit.Host device is worn on the forearm of patient and positioned in the fistula blood vessel area, sound collecting component is used to collect blood vessel sound signal and convert into electrical signal, sound amplifying component amplifies blood vessel sound, realizes real-time auditory monitoring of patency.Pressurizing component applies pressure within preset time period, assists blood vessel dilation exercise.Control unit drives pressurizing component to implement pressurization and release according to user-set exercise mode and timing parameters, and monitors pressure change and blood vessel response;Processing and analyzing blood vessel sound signal, judging blood vessel state and outputting feedback or prompt information.The system integrates sound monitoring, individualized exercise and blood vessel evaluation, helps to improve the efficiency of fistula maturation and long-term patency, and is suitable for preoperative training, postoperative rehabilitation and patency management of hemodialysis patients.