87 results about "Varicose vein" patented technology

The invention provides a multi-sulfonic acid mucopolysaccharide (MPS)-based microneedle preparation and a preparation method thereof. The microneedle preparation is prepared from polysulfonic mucopolysaccharide, hyaluronic acid, sodium carboxymethyl cellulose, glycerol, a pH regulator and water, has excellent stability and good transdermal drug delivery performance, and is suitable for phlebitis, varicosity, scar improvement and the like.

The invention discloses a vein blood vessel image processing method and device, equipment and a storage medium. The vein blood vessel image processing method comprises the steps of collecting a vein blood vessel image; the collected vein blood vessel image is preprocessed; an improved U-Net segmentation network and an improved Zhang-Suen skeletonization algorithm are adopted to process the preprocessed image, and multi-modal results are fused to obtain a blood vessel segmentation result; and based on a blood vessel segmentation result, performing blood vessel three-dimensional modeling by adopting a multi-stage B-spline mapping method, and quantitatively analyzing blood vessel spatial geometric features and hemodynamic parameters to obtain a blood vessel form-function joint evaluation index. The vein blood vessel image is processed and analyzed, three-dimensional modeling is carried out on the blood vessel, the radiation path of radiotherapy is planned, and a foundation is laid for follow-up treatment of varicosity through in-vitro radiation.

The invention discloses a traditional Chinese medicine composition for preventing and treating light and moderate varicocele and a preparation method thereof. The traditional Chinese medicine composition is prepared from the following components in parts by weight: 12 to 30 parts of radix paeoniae rubra, 9 to 24 parts of peach kernel, 9 to 24 parts of spina gleditsiae, 9 to 24 parts of radix cyathulae, 6 to 18 parts of cassia twig, 9 to 24 parts of fructus forsythiae, 6 to 18 parts of thunberg fritillary bulb, 6 to 18 parts of rhodiola rosea, 6 to 18 parts of semen aesculi and 3 to 15 parts of raw liquorice. After the traditional Chinese medicine composition provided by the invention is adopted for treatment, the spermatovenous reflux time is remarkably shortened, the semen quality including semen volume, sperm density and sperm motility is remarkably improved, the total effective rate of treatment is higher than that of other prescriptions, the living quality of a patient is remarkably improved, the medicine safety is high, and the varicocele can be effectively treated.

An embodiment may be a method for early diagnosis and management of varicose veins by a server, which may include the steps of acquiring varicose vein-related information from a user device, quantifying the degree of capillary exposure based on an analysis of the varicose vein-related information, evaluating the risk of varicose veins based on the quantified degree of capillary exposure, and transmitting evaluation result information for varicose veins to the user device based on the evaluated risk of varicose veins.

The application discloses a post-varicose vein surgery wound compression hemostasis device, which comprises a device main body for fixing on a limb, a pressure increasing module arranged on the device main body and an anti-reverse mechanism. The pressure increasing module comprises a rotating handle rotatably arranged on the device main body, a pressure push rod with a top end threadedly connected with the rotating handle and a compression pad arranged at the bottom end of the pressure push rod; the pressure push rod is slidably connected with the device main body. When the rotating handle is rotated clockwise, the pressure push rod is driven to move towards the skin side, so that the compression pad applies compression pressure on the wound. The anti-reverse mechanism is connected with the rotating handle and is used for preventing the rotating handle from being rotated counterclockwise, thereby preventing the compression pressure from being released accidentally. The device can accurately and stably maintain the compression pressure on the wound, avoids postoperative rebleeding or hematoma formation caused by pressure attenuation, and has the characteristics of convenient operation, safety and reliability.

A treatment training simulator for injecting a hardening agent into esophageal varicose veins under an endoscope comprises a round tube type long tube, the inner wall of the round tube type long tube is covered with a layer of soft rubber, a plurality of artificial esophageal veins are arranged between the inner wall of the round tube type long tube and the soft rubber, the artificial esophageal veins are arranged in an intercommunication mode, one of the artificial esophageal veins is a liquid inlet tube, and the other of the artificial esophageal veins is a liquid outlet tube. When the esophageal vein teaching aid is used in clinical endoscopic esophageal vein teaching, red pigment is injected into the opening of the rubber hose, so that the rubber hose has blood like esophageal veins, and an injection needle is used for injection training in the training process; if the injection needle is inserted into the rubber hose, blood can be pumped back, injection can be practiced for many times, an operation model can be provided for clinical or hospital teaching esophageal varicosity hardener treatment under an endoscope, the risk of direct human body operation is avoided, and an esophageal varicosity operation protection frame under the endoscope is protected.

The invention relates to the technical field of varicosity elastic socks, and discloses a far infrared heating thermal therapy varicosity elastic sock capable of fixing a traditional Chinese medicine bag, the far infrared heating thermal therapy varicosity elastic sock comprises a bottom section, a shank section and a thigh section, and the bottom section is provided with an end opening; an external belt is arranged on the periphery of the shank section, a containing cavity for containing a traditional Chinese medicine bag is defined between the external belt and the shank section, and the width of the containing cavity is larger than that of the traditional Chinese medicine bag; the shank section is provided with an inner side section, an inner attaching layer is formed on the inner side section, and a plurality of outer attaching strips are arranged on the external belt and extend in the width direction of the containing cavity; the shank part is provided with a plurality of hollow-out positions to which gaskets with far infrared heating are attached; the external belt is arranged on the shank section, the traditional Chinese medicine bag can be placed in the containing cavity, the traditional Chinese medicine bag is fixed in the containing cavity through attaching and fixing between the multiple external attaching strips and the inner attaching layer, and the traditional Chinese medicine bag is clamped oppositely so that the traditional Chinese medicine bag can be better attached to the shank section.

The invention discloses a varicosity ultrasonic treatment system which comprises the components of a treatment head which is mounted at the tail end of a motion arm and comprises a focusing transducer and a guiding image transducer; the motion control unit is used for controlling the motion of the motion arm so as to control the pose of the treatment head; the power amplifier unit is used for driving a focusing transducer in the treatment head; the water treatment unit is used for treating medium water used by the treatment head; the image unit is used for driving a guide image transducer in the treatment head to transmit an ultrasonic signal and receiving a reflected ultrasonic echo signal to obtain a guide ultrasonic image; and the main control unit is used for performing treatment planning according to the guide ultrasonic image, so that the treatment head can perform varicosity treatment according to the treatment planning. Complete treatment of the varicosity operation can be completed without external independent ultrasonic images and external independent water supply.

At least some embodiments of the present disclosure are directed to a catheter for use in varicose vein treatment including a handle, an elongated shaft connected to the handle, and a heating element disposed near the distal end of the shaft. In some embodiments, the heating element includes a first heating coil having a first plurality of windings and a second heating coil having a second plurality of windings, and at least some of the second windings crossing over the first windings.

The invention relates to the technical field of gastroenterology, in particular to an endoscope ligation device for the gastroenterology, which comprises an endoscope handle part and an insertion part connected to the head part of the endoscope handle part, a ligation head part is mounted at the head part of the insertion part, a negative pressure adsorption mechanism is arranged on the inner side of the ligation head part, and the negative pressure adsorption mechanism is connected with the endoscope handle part. A plurality of elastic rings are connected to the loop ligature head in a sleeving mode, a trigger push rod switch is arranged on the negative pressure adsorption mechanism and connected with a retracting and releasing mechanism located on the inner side of the loop ligature head, and the retracting and releasing mechanism is connected with the negative pressure adsorption mechanism. The problems that an elastic ring loading process is time-consuming and labor-consuming, complex lesions such as esophageal varicose veins need to be subjected to loop ligature for many times, the treatment opportunity of a patient is easily affected, the head may cause mechanical injury to the esophagus when the device enters the esophagus, and comfort and safety are low are solved.

The utility model discloses a positive pressure injection needle, and particularly relates to the technical field of injection needles, which comprises a confluence cylinder, a circulation cavity is arranged in the confluence cylinder, a sealing cover is arranged at the upper end of the confluence cylinder, a connecting nozzle is mounted at the lower end of the confluence cylinder, and an injection needle is mounted at the lower end of the connecting nozzle. According to the injection needle, the positive pressure state of an inner cavity is guaranteed through the check valves, the problems that most of the tail portions of existing injection needles are communicated with the atmosphere, the tail portions of the existing injection needles are not communicated with the atmosphere, and the tail portions of the existing injection needles are not communicated with the atmosphere are solved. At the moment when the needle point punctures into the varicose vein, blood in a blood vessel with higher pressure quickly flows back into the front end of the injection needle, and an operator needs to inject tissue glue after exhausting, so that the time is prolonged, and the problem that the blood and the tissue glue are easily solidified instantly is solved.

The invention relates to the technical field of medical instruments, in particular to a valve device for improving or preventing great saphenous vein and a using method of the valve device. The using method of the valve device for improving or preventing great saphenous vein varicosity comprises the steps that the position, left on the leg body surface, of the valve body is obtained based on the leg great saphenous vein position; acquiring leg perimeter information of the leg body surface position and the distance between the body surface and the great saphenous vein based on the position of the valve body indwelled on the leg body surface position; selecting a bandage model based on the leg perimeter information; the valve body thickness is obtained based on the distance between the body surface and the great saphenous vein; the valve body is positioned on the body surface of the leg through the bandage, the bandage generates first extrusion force on the valve body, the valve body generates second extrusion force on the great saphenous vein, and the second extrusion force is larger than the first extrusion force. In this way, the problem that an existing medical instrument for improving or preventing great saphenous varicosity needs to adopt an in-vivo surgical instrument is solved.

The utility model discloses a vein closure radiofrequency ablation component, including handle, catheter and ablation electrode that connect in proper order, the ablation electrode is provided at the front end of catheter, the rear end of catheter extends to handle rear end and is connected with joint, the inside of catheter is hollow structure, joint and the inside of catheter are communicated and are used for the leading wire to pass through before the operation. The ablation electrode is reliable in structure, simple in structure, stable, reliable and convenient to operate, normal saline is instilled to the ablation electrode in an operation to conduct the electrode tip and the outer tube, low-temperature plasma is generated under excitation of radio-frequency current to ablate varicose blood vessels, meanwhile, the high-resistance metal electrode tip is powered on to emit heat, the blood vessels are secondarily heated, and the ablation effect of the high-resistance metal electrode tip is improved. Compared with a coil type catheter, the ablation temperature is not too high, the ablation range is relatively small, tissues are not prone to adhesion, and the vein ablation closing effect is improved.

The application discloses a varicose vein rehabilitation training system and method based on virtual reality games in the field of rehabilitation training, which comprises a head-mounted device, a control module and a binding device; the head-mounted device comprises a VR display device and a vital sign monitoring module; the VR display device and the vital sign monitoring module are electrically connected with the control module; the VR display device is used for displaying rehabilitation training game content and monitoring human body vital sign information; a gyroscope sensor, a phototherapy module and a body temperature monitoring module are arranged on the binding belt; the binding belt is fixed on the human leg; the phototherapy module comprises a plurality of red and blue multi-color light sources and a plurality of red light sources; therefore, the gyroscope sensor, the red light source, the blue light source and the body temperature monitoring module are electrically connected with the control module; the application assists patients in varicose vein rehabilitation training, improves the interestingness of patients in the rehabilitation treatment process, and indirectly improves the rehabilitation treatment effect and the experience of patients in the rehabilitation treatment.

This application discloses a method and system for microvascular anastomosis modeling and effect prediction in assisted spermatic cord anastomosis, relating to the field of data processing technology. The method includes: extracting the pampiniform plexus topology and varicose vein segments from a three-dimensional vascular tree model of the spermatic veins constructed based on spermatic cord vessel images; determining candidate diversion inlet locations based on the spatial adjacency relationship between the obstructed reflux nodes identified by the varicose vein segments and the pampiniform plexus topology; spatially registering the contour of the inferior epigastric vein segmented from the superficial vein images of the inguinal region with the candidate diversion inlet locations to generate a diversion anastomosis path planning map; constructing the geometric configuration of the end-to-side anastomosis and performing hemodynamic simulation to generate a wall shear stress distribution field, assess the thrombosis tendency of the end-to-side anastomosis, and generate a postoperative patency rate prediction value. This application can predict the risk of thrombosis preoperatively through hemodynamic simulation, providing a reliable basis for surgical planning and effectively improving the success rate of the surgery.

The compound preparation is characterized by being prepared from the following components in parts by mass: 11 to 13 parts of cortex acanthopanacis, 9 to 12 parts of herba taxilli, 21 to 23 parts of radix achyranthis bidentatae, 9 to 11 parts of radix paeoniae rubra, 8 to 10 parts of herba lycopi, 20 to 22 parts of radix salviae miltiorrhizae, 11 to 13 parts of semen vaccariae, 5 to 8 parts of spina gleditsiae, 6 to 9 parts of rhizoma chuanxiong, 5 to 7 parts of liquorice root and 20 to 22 parts of radix astragali seu hedysari. The medicines are compatible, are mainly used for tonifying liver and kidney, activating blood and inducing diuresis, are compatible with qi and blood, and are suitable for rheumatic arthralgia and chronic inflammation. Cortex acanthopanacis and herba taxilli expel wind-damp and strengthen muscles and bones, herba lycopi and radix achyranthis bidentatae promote diuresis and descend, and the traditional Chinese medicine is suitable for rheumatism edema and lower limb Radix astragali and radix angelicae sinensis tonify qi and nourish blood, radix salviae miltiorrhizae and rhizoma chuanxiong activate blood and promote qi circulation, and the traditional Chinese medicine is suitable for qi and blood stasis type diseases. The liquorice is used for regulating the medicine property of the whole formula and alleviating the drasticality of the cowherb seeds, the spina gleditsiae and the like, and glycyrrhizic acid contained in the liquorice has an anti-allergic effect and reduces the risk of medicine allergy.

The application discloses a device for relieving varicocele pain, and relates to the field of devices for relieving varicocele pain, solves the problem of fixed position and difficult adjustment of the device for relieving varicocele pain in use to the scrotum extrusion, and leads to poor use comfort, and comprises a fixing mechanism, an adjusting mechanism, a plurality of first elastic tubes and second elastic tubes, the fixing mechanism comprises a waistband, and the adjusting mechanism comprises a device box and an adjusting plate; the device is fixed as a whole through the fixing mechanism, the supporting tightness of the first elastic tube and the second elastic tube can be controlled, the hydraulic strength in the first elastic tube and the second elastic tube is adjusted through the adjusting mechanism, the extrusion state of the scrotum by the first elastic tube and the second elastic tube is switched, the extrusion position and strength are switched, the discomfort caused by long-time extrusion of a single position to the outer wall of the scrotum is avoided, cooling and massage can be assisted, and the comfort is improved.

The invention discloses a device for relieving the pain of varicocele, relates to the field of devices for relieving the pain of varicocele, and solves the problem that when an existing device for relieving the pain of varicocele is used, the scrotum extrusion position is fixed and is difficult to adjust, and the use comfort is poor. Comprising a fixing mechanism, an adjusting mechanism, a plurality of groups of first elastic pipes and a plurality of groups of second elastic pipes, the fixing mechanism comprises a waistband, and the adjusting mechanism comprises a device box and an adjusting plate. The hydraulic strength in the first elastic tube and the second elastic tube is adjusted through the adjusting mechanism, so that the extrusion state of the first elastic tube and the second elastic tube on the scrotum and the extrusion position and strength are switched, discomfort caused by long-time extrusion of a single position and the outer wall of the scrotum is avoided, meanwhile, cooling and massage can be assisted, and the working efficiency is improved. And the comfort is improved.

The utility model provides a varicosity rehabilitation training device capable of being installed on a sickbed, and belongs to the technical field of vascular surgical instruments. Comprising two clamping pieces capable of being clamped on guardrails of a sickbed, a pull rod connected between the two clamping pieces and two training units connected to the pull rod in a sliding mode, each training unit comprises a mounting base connected to the pull rod in a sliding mode, a guide wheel rotationally connected to the mounting base and a traction rope, and a hand ring is fixedly arranged at one end of the traction rope; a supporting hook is fixedly arranged at the other end of the traction rope, and a buffer spring arranged on the traction rope in a sleeving mode is connected between the supporting hook and the installation base. The device has the advantages of simplicity in operation and the like.

The invention discloses a device for preventing lower limb deep venous thrombosis, and relates to the technical field of medical instruments, a prevention and measurement assembly is arranged on the outer side of a sock leg, zipper heads are symmetrically installed on a detection zipper opening, a color ultrasound probe is clamped between two rubber clamping plates, and adjusting zippers are installed in a main adjusting opening and an auxiliary adjusting opening. According to the invention, the color ultrasound probe slides up and down along the opening of the detection zipper, the blood flow velocity and the like at the path position are detected and analyzed, the operation is convenient, numerous detection patches do not need to be pasted, the varicosity sock does not need to be taken off, and the detection efficiency is improved. The detection efficiency is improved, the adjusting zipper in the auxiliary adjusting opening is loosened, the tension degree of the sock leg is changed, detection is carried out under different pressure conditions, detection can be conveniently carried out under the tightening and loosening conditions, follow-up data comparison is facilitated, the detection precision is improved, timely treatment is facilitated, and formation of lower limb venous thrombosis is effectively prevented.

The present application relates to a radio frequency closing device for vein, belonging to the technical field of medical devices, solves the risk of burning through the vein in the working process of the ablation catheter, solves the problem of the bending part that may pierce the vein blood vessel, causes damage to the health of the patient. The present application comprises a radio frequency tube, a driving unit and a control unit, the radio frequency tube and the control unit are connected with the driving unit, the driving unit is used for controlling the radio frequency tube to be delivered to the target area in the blood vessel, and the radio frequency tube is used for ablation closing varicose vein. The resistance measuring module of the present application measures the resistance value of the head end working area, and sends the resistance value to the control unit in real time, the control unit judges according to the comparison result, if there is a risk of blood vessel piercing or a risk of burning through the vein, the control unit sends an instruction to the driving motor, the driving motor reverses, the radio frequency tube retreats to the driving unit direction, prevents the radio frequency tube from piercing the blood vessel or repeatedly burning through the blood vessel, avoids the damage to the health of the patient.

an ergonomic chair that can correct and support the sitting posture of the user The ergonomic chair prevents or reduces some critical health problems related to thoracic spine, lumbar spine, coccyx pain, varicose veins, prolonged hip flexion, compression of vascular structures and nerves beneath the iliopsoas muscle, tightness in the piriformis muscle, Prostatomegaly, impaired abdominal function. The present ergonomic chair provides a head support, anterior neck support, a chin support, thoracic support valves, lumbar support, abdominal support, and hip support. Further the present ergonomic chair can be adjusted in height and support bending of the back rest with help of a hinge component that functions as seat tilt adjuster.

The application belongs to the technical field of medical devices, and particularly relates to an adhesive for treating varicose great saphenous vein and a preparation method thereof. The adhesive is obtained by the following steps: (1) preparation of poly cyanoacrylate powder; (2) preparation of the adhesive: 50-85 parts of cyanoacrylate, 5-30 parts of plasticizer, 0.01-0.5 parts of polymerization inhibitor and 0.01-0.5 parts of antioxidant are uniformly stirred, 10-30 parts of poly cyanoacrylate powder is slowly added, and stirring is continued until complete dissolution and filtration, and the adhesive is obtained. The prepared adhesive has a weight average molecular weight of 0.5-10 million, a viscosity of 500-3000 cp, low formaldehyde content, is not diluted by blood when implanted into a blood vessel, does not flow with blood, reduces the risk of ectopic embolism, reduces the risk of allergy and inflammation, and the adhesive has a curing time of less than 20 s, can quickly polymerize and form a clot to block the blood vessel when implanted into the target vein position.

A flexible thin-film foot energy harvesting and lower limb varicose vein monitoring device belongs to the field of self-powered and sensor technology. It includes a flexible foot energy harvester located on the sole of a shoe, an energy storage device, and a flexible PVDF piezoelectric material array varicose vein monitoring strap for lower limb binding. The flexible foot energy harvester is electrically connected to the energy storage device, and the energy storage device is electrically connected to the monitoring strap. The flexible PVDF piezoelectric material array varicose vein monitoring strap is a sensing device based on BaTiO3 / PVDF piezoelectric composite material, capable of receiving and displaying the varicose vein status of the lower limbs. The energy of the flexible PVDF piezoelectric material array varicose vein monitoring strap is collected by the flexible foot energy harvester and stored in the storage device. This device achieves efficient mechanical energy-to-electrical energy conversion and high-sensitivity varicose vein monitoring, significantly advancing the fields of self-powered, sensor technology, and wearable piezoelectric technology.

The application discloses a multifunctional treatment and evaluation device and method for varicose veins of lower limbs, which comprises a multifunctional treatment bandage, a treatment evaluation instrument and a host computer, the multifunctional treatment bandage is connected with the treatment evaluation device and is used for actively intervening and monitoring varicose vein positions, the treatment evaluation device is connected with the host computer and is used for signal transmission and processing, and the host computer is used for data analysis and processing and visual operation. The multifunctional treatment evaluation device has the advantages of simple operation, low cost, multiple built-in prescription modes, and the ability of detecting, treating and evaluating the conditions of patients with varicose veins of lower limbs, and has a wide application prospect in the field of treating varicose veins.

The invention relates to an intravenous type device for the treatment of varicose veins consisting of a body (1), a working end (2) towards the inner part of the patient's leg with an exit hole (3), a working end (4) manipulated by medical personnel consisting of three routes of admission, the first of them (5) to enter a fiber optic element, two other ports (6, 7) that can enter an inflatable balloon device (8) and a sclerosing foaming agent such as polidocanol (9), the main body (1) also presents a plurality of windows or orifices (10).

The invention discloses a ligation tool for varicosity, which relates to the technical field of medical instruments, is used for winding a ligature on a vein trunk, and comprises an outer catheter, at least one puncture tube is arranged in the outer catheter, the puncture tube positioned on the innermost side is used for penetrating the ligature, and a connecting piece is arranged at the head end of the puncture tube on the innermost side; the connecting piece is used for fixing one end of the ligature, and in the initial state, the puncture tube is located in the outer catheter; in the operation state, the puncture tube is pushed to move in the circumferential direction of the vein trunk, after the connecting piece is connected with the outer catheter, the other end of the ligature is located on the outer side of the near end of the puncture tube, the outer catheter is fixed, the puncture tube is pulled towards the near end, and the front end of the puncture tube is separated from the connecting piece. After varicosity treatment, the closing effect is achieved, redundant parts of a ligature are cut off, the ligation operation is completed, a tortuous vein trunk does not need to be pulled out through a stripper, the operation is simpler, and operation is convenient.

The invention relates to the technical field of medical instruments, in particular to a varicosity treatment device which comprises an inner catheter and an outer catheter, the inner catheter is sleeved with the outer catheter in a sliding mode, a blocking balloon is arranged at the head end of the inner catheter, a medicine outlet hole is formed in the head end of the outer catheter, and a blood discharging balloon and a membrane puncturing assembly are sequentially arranged at the end, close to the medicine outlet hole, of the outer catheter. The membrane puncturing assembly is used for mechanically scratching a vein wall membrane. The vascular wall intima is scratched in the blood vessel through the membrane puncturing assembly, the drug barrier is broken, and the permeation efficiency and the treatment effect of the hardening agent are improved. By arranging the blood discharge balloon on the outer catheter, the blood in the target vein section can be temporarily discharged before the hardening agent is injected, so that the dilution of the medicine by the blood is avoided, and the effective concentration and the acting effect of the medicine are further ensured. The technical problems that in the prior art, the vascular wall membrane cannot be mechanically damaged, the blood discharging function cannot be achieved, the reaction efficiency of a hardening agent and the vascular wall is reduced, and then the treatment effect is reduced are solved.

A catheter for use in varicose vein treatment may include a handle, an elongated shaft connected to the handle, and a heating element disposed near the distal end of the shaft. In some embodiments, the heating element may include a plurality of pressure sensors circumferentially offset from one another, each pressure sensor being configured to generate an output signal indicative of pressure applied thereto by surface of target blood vessel.

The application provides an AI treatment decision system for liver cirrhosis acute variceal hemorrhage, relates to the technical field of treatment decision, extracts a transient characteristic indicator of blood flow pressure from a pressure fluctuation signal, predicts a transient pressure peak of the portal vein blood flow during acute variceal hemorrhage through the transient characteristic indicator and a blood flow dynamic model, predicts a quasi-steady pressure field of the portal vein blood flow during acute variceal hemorrhage according to the gradient distribution of the portal vein blood flow pressure and an initial treatment strategy of acute variceal hemorrhage, performs multi-scale coupling on the transient pressure peak and the quasi-steady pressure field to obtain a coupling characteristic of the portal vein blood flow, and then uses the coupling characteristic of the blood flow pressure to perform hierarchical coupling adjustment on the treatment strategy of liver cirrhosis acute variceal hemorrhage. Based on the above scheme, hierarchical coupling of the treatment strategy of liver cirrhosis acute variceal hemorrhage can be realized, so that the prediction accuracy of the portal vein blood flow pressure during acute variceal hemorrhage can be improved.