355 results about "Interventional therapy" patented technology

The invention provides a CT guided liver puncture training method and system based on virtual reality, and relates to the technical field of virtual reality. A deformable liver model and a virtual CT reconstruction engine under respiration driving are constructed, needle body posture mapping and image fusion display are achieved by fusing an inertia-electromagnetic dual-mode sensor, path interaction control, tissue dynamic response and score feedback are supported, the scene difficulty is automatically adjusted based on a training result, and the accuracy and the reliability of the system are improved. Progressive puncture skill training of static breath-holding, shallow breath and free breath scenes is achieved, the sense of reality of training, operation feedback and teaching efficiency are improved, and the system is suitable for development and clinical teaching application of an interventional therapy training system under the guidance of medical images.

The invention provides a clinical diagnosis and treatment path generation method and system for tracking a chest pain patient. Wherein a dynamic spatio-temporal data atlas is constructed by synchronously collecting respiratory rhythm phase difference, coronary artery calcification integral and hypersensitive troponin curve slope, and risk degree transition signals are generated by coupling analysis of ST segment elevation amplitude asymmetric growth, left ventricular ejection fraction attenuation gradient and B-type natriuretic peptide release rate. In the acute stage, the constraint relation between a vascular recanalization time window and thrombolysis taboo is dynamically bound, in the subacute stage, a phase synchronization rule for enhancing CT scanning and anticoagulant drug dosage is established through a multidisciplinary interface, intravascular ultrasonic plaque morphological mutation characteristics and extracorporeal circulation parameters are fused, the blood supply reconstruction time sequence is dynamically adjusted based on a myocardial oxygen consumption balance equation, and the thrombolysis time sequence is determined. And path self-optimization is realized through space-time superposition of an interventional therapy delay parameter and a drug metabolism curve. According to the technical scheme provided by the invention, chest pain diagnosis and treatment path dynamic optimization and multi-modal parameter collaborative decision-making are realized, and the risk layering precision and the treatment timeliness are improved.

The invention relates to the field of medicine, in particular to application of chlorogenic acid or pharmaceutically acceptable salt thereof in preventing, inhibiting or treating aortic dissection. The obvious effect of chlorogenic acid in treating the aortic dissection is found for the first time, and a brand new thought and method are provided for treating the aortic dissection. Besides, compared with the traditional surgical operation and interventional therapy, the chlorogenic acid is relatively low in treatment cost, so that the economic burden of a patient is relieved, and meanwhile, the consumption of medical resources is also reduced.

The invention relates to the field of medical data analysis, in particular to an interventional therapy patient perioperative period pain data analysis method and system. An interventional therapy patient perioperative period pain data analysis system comprises a data acquisition module, a weight acquisition module, a pain prediction module and a pain monitoring module. According to the method, a standardized multi-source data coding system is established, pre-operative static characteristics and intra-operative dynamic time sequence signals are subjected to nonlinear weight calculation based on mutual information coefficients, complex threshold correlation and interaction effects among parameters are captured, and then a parallel architecture of an LSTM network and a static weighting layer is adopted; deep correlation information of a time sequence dependence mode generated by intraoperative operation and basic background parameters is extracted, the recognition ability of the model for high-risk patients is improved, and high-precision prediction of the pain intensity and type in the perioperative period is achieved.

The invention relates to an intervertebral disc degenerative change analysis system based on multi-dimensional information. The system comprises a data processing module, a modifiable factor processing module, a circular RNA data processing module, a biomarker processing module, an image processing module, a treatment information processing module, a diagnostic feature anchoring module, a model generation module and a change analysis module. Anchoring is carried out on circular RNA, biomarkers, treatment information and modifiable factors through image information to form an anchoring network, and a reliable and effective basis can be provided for disease course analysis through big data and a large number of research results, so that each doctor has a targeted expectation and understanding on the disease course of a patient in the diagnosis stage; the method has the advantages that an interventional therapy scheme can be arranged in advance or the condition of a patient can be observed in real time, research results can be collected and fed back in time through big data, the information utilization rate is increased, and an information dimension integration scheme for degenerative disease recognition is created, and the accuracy of recognition results is improved.

The invention relates to an interventional therapy target accurate positioning method and system based on an ultrasonic image. According to the method, a binary mask is generated by extracting an acoustic shadow area in an ultrasonic image, contrast enhancement parameters of different areas are dynamically adjusted based on the binary mask, and target spot edge details are enhanced while shadow area noise is suppressed; a shadow mask attention mechanism is combined to guide a neural network to accurately segment a target point probability graph, a segmentation boundary is evolved and optimized by integrating a level set constrained by a shadow region shape, and local smooth compensation is performed on registration deviation of a three-dimensional reconstruction model and a preoperative image by using a shadow perception deformation field correction strategy; and finally generating a puncture path for avoiding the dangerous structure. The problems of fuzzy target boundary, segmentation error accumulation and deformation compensation misalignment of a traditional method under acoustic shadow interference are effectively solved, and the pertinence of image enhancement, the accuracy of target positioning and the safety of an intervention path are remarkably improved.

The invention discloses an interventional therapy path planning system based on ultrasonic imaging, and relates to the technical field of interventional therapy systems.An image acquisition module acquires a two-dimensional or three-dimensional ultrasonic image of an operation area, and standardized input of image data is achieved; the structure identification module executes a medical image segmentation task based on the ultrasonic image and identifies a key anatomical structure in the image; the geometric modeling module constructs a three-dimensional space model according to the structure recognition result; the thermal simulation prediction module comprises a heat conduction simulation sub-module and a thermal parameter dynamic adjustment sub-module; the temperature feedback module reconstructs a three-dimensional temperature field image in the target tissue based on the tissue temperature feedback signal; the parameter updating module executes real-time updating of heat conduction parameters based on the residual error between the predicted temperature field and the observation temperature field collected by the temperature feedback module; the problems that in existing interventional therapy, thermal control precision is low, path planning depends on experience, and tissue dynamic changes are difficult to deal with are effectively solved.

The invention provides conveying equipment for surgical interventional therapy of congenital heart diseases, and belongs to the field of medical equipment. Comprising a guide pipe, a traction pipe and a conveying pipe, the upper end and the lower end of the guide pipe are open, the conveying pipe is located in the traction pipe, a sealing plate is fixedly connected to the lower end of the inner surface of the guide pipe and makes sliding contact with the outer surface of the traction pipe, and a conveying assembly is arranged at the upper end of the conveying pipe; the conveying assembly comprises a fixing sleeve fixedly connected with the upper end of the outer surface of the conveying pipe. By arranging the conveying assembly, a support is clamped and fixed through a contact plate, the support is stored and placed in a guide pipe, a good protection effect on the support in the conveying process can be achieved, and therefore the probability that the support falls off accidentally in the conveying process can be reduced; and therefore, the stability and the safety of the conveying equipment in the working process can be effectively improved.

The invention relates to the technical field of medical interventional therapy materials, and particularly discloses a preparation method of sodium hyaluronate embolism microspheres and the prepared embolism microspheres. The preparation method of the sodium hyaluronate embolization microspheres comprises the following steps: S1, adding methacrylic anhydride, N, N-dimethylformamide and sodium hydroxide into a sodium hyaluronate aqueous solution, reacting, adding sodium chloride, reacting, adding absolute ethyl alcohol, precipitating, filtering to remove filtrate, cleaning and drying; s2, preparing a mixture of methacrylated sodium hyaluronate, a monomer with negative charges, an initiator and water into a water phase; a mixture of oil soluble liquid and a dispersing agent is used as an oil phase; and under the protection of nitrogen, carrying out reverse suspension polymerization. According to the preparation method of the sodium hyaluronate embolization microspheres, the methylacryloylated sodium hyaluronate and the negatively charged monomer are copolymerized to introduce the negatively charged group, so that the microspheres can effectively load chemotherapeutic drugs, and the compression elasticity is high.

The invention discloses an adjustable thrombus breaking device, and belongs to the technical field of interventional therapy instruments, the adjustable thrombus breaking device comprises a guide wire tube and a guide wire, the tube wall of the guide wire tube is provided with a guide wire port, and the guide wire port is located at the position close to the far end of the guide wire tube; the guide wire is arranged in the guide wire tube in a penetrating mode, the far end of the guide wire is connected with the far end of the guide wire tube, the guide wire can penetrate out of the guide wire opening in a bent shape, and the part, penetrating out of the guide wire opening, of the guide wire forms a broken plug structure. The guide wire can penetrate out of the guide wire opening formed in the guide wire tube, the thrombus breaking structure is formed by the guide wire penetrating out of the guide wire opening, the outer diameter of the thrombus breaking structure can be adjusted through the guide wire, and the thrombus breaking device has the advantages of being simple in structure, high in flexibility and high in thrombus breaking efficiency and can adapt to complex blood vessel structures and suction catheters with small catheter diameters.

A medical instrument for interventional therapy. An implant delivery mechanism (1000) comprises a puncture needle (1010) and a needle actuator (1020), and the needle actuator (1020) is connected to the puncture needle (1010) and moves synchronously in the axial direction of the puncture needle (1010); and a trigger mechanism (2000) is detachably connected to the implant delivery mechanism (1000), the trigger mechanism (2000) comprises a force storage release member (2010), and the force storage release member (2010) is connected to the needle actuator (1020) and moves synchronously.

The novel multichannel drainage device for liver and gall interventional therapy comprises a liquid collecting bag and a communicating pipe arranged at one end of the liquid collecting bag, a collecting barrel is arranged at the other end of the communicating pipe, and a plurality of drainage pipes are arranged at the other end of the collecting barrel; wherein sensor bodies are arranged at the middle ends of the drainage tubes, side holes are formed in the side faces of the top ends of the drainage tubes, and the drainage tubes are communicated with the collecting barrel and communicated with the communicating pipe. And a safer and more effective treatment tool is provided for liver and gall interventional therapy.

The invention discloses a medical model for simulating vascular interventional therapy, and relates to the technical field of medical treatment. The blood vessel model is detachably connected to the upper surface of the model base, one end of the blood vessel model is closed, the other end of the blood vessel model is open, and a plug is installed at the opening of the blood vessel model in an interference fit mode; the catheter is arranged in the blood vessel model in a penetrating manner, one end of the catheter is arranged on the plug in a penetrating manner, and the other end of the catheter is connected with a thrombus model; and the adjusting piece is arranged at the end part of the catheter and is used for adjusting the distance between the thrombus model and the inner wall of the blood vessel model. According to the invention, the thrombus model is arranged in the blood vessel model, so that a new medical worker can perform simulation operation, and the adjusting part is arranged and can adjust the distance between the thrombus model and the inner wall of the blood vessel model, so that the position of thrombus in the blood vessel under a real operation condition can be simulated; therefore, medical staff can adopt different modes to carry out interventional therapy on thrombus.

The invention provides an implant release system and an embolism interventional therapy device, and relates to the field of medical instruments.The implant release system comprises a push rod and a control line, the far end of the push rod is provided with a limiting block, and the limiting block is provided with a first containing cavity and a containing groove used for containing a connecting rod; the pushing rod is further provided with a second containing cavity used for containing the release head, the second containing cavity is located on the near end side of the limiting block, an opening allowing the release head to be disengaged is formed in the radial direction of the second containing cavity, and the orientation of the opening is consistent with the orientation of the containing groove. The control line is located in the hollow cavity of the push rod, and a cushion block is arranged at the far end of the control line. The implant can be smoothly released, the structure is simple, and the release operation is convenient.

The invention discloses an illumination treatment system and a non-interventional treatment system, relates to the field of medical apparatuses and instruments, and aims to solve the defects of lamps in illumination uniformity, structural complexity and treatment scientificity. An illumination module in the system comprises an illumination control unit and at least one group of illumination treatment lamps. The illumination treatment lamp comprises a plurality of full-sunlight spectrum lamp caps which are arranged in an array; the components in the wave band of 430 nm to 450 nm are weakened by each lamp holder, and the components in the wave band of 475 nm to 485 nm are enhanced; the illumination control unit controls the illumination of the corresponding illumination treatment lamp according to the configured illumination mode; the medical record management module is used for storing patient medical records; the report management module is used for generating an illumination treatment report according to the illumination mode. The lamps of the system have the advantages of being uniform in illumination, simple in structure and high in treatment efficiency, and the system can conduct efficient, accurate and traceable illumination control on the multiple sets of lamps at the same time.

The utility model provides a slender surgical instrument, an ablation optical fiber assembly for laser interstitial substance thermotherapy and a laser interstitial substance thermotherapy system.The slender surgical instrument comprises a slender component, and the slender component is used for being matched with a sleeve part connected to the outer side of the slender component in a sleeving mode and can move relative to the sleeve part during use; one of the slender component and the sleeve piece is provided with a position indicating part, the other one of the slender component and the sleeve piece is provided with a position matching part, the relative position change of the position indicating part and the position matching part is used for representing the relative movement position relation of the slender component and the sleeve piece, and the relative movement position relation comprises the relative movement distance and / or the relative rotation angle. By means of the relative position relation between the position indicating part and the position matching part, the slender component can be quickly and accurately adjusted to the preset axial position or angle, so that the ablation optical fiber can perform interventional therapy at the preset position without repeatedly moving the ablation optical fiber.

The invention relates to the technical field of medical image processing and interventional therapy assistance, and discloses an intubation fluorescent image feature learning system for hepatic artery chemoembolization. Comprising an image acquisition module which is configured to acquire a distortionless two-dimensional fluorescent blood vessel image in a hepatic artery chemoembolization super-selective intubation process; the control module is used for extracting surface geometric features of the blood vessel from the two-dimensional fluorescent blood vessel image; inputting the surface geometric features to a preset spatial reasoning model, and outputting a spatial distribution probability matrix of each blood vessel part; capturing a difference signal between the spatial distribution probability matrix and angiography feedback data in an actual intubation process in real time, and forming an iterative training data set to optimize the spatial reasoning model; and identifying a potential complex blood vessel region according to the spatial distribution probability matrix, generating an intubation path early warning signal, and generating guide parameters of X-ray release opportunity and dose based on the early warning signal so as to reduce radiation exposure.

The invention relates to the technical field of medical guide wire storage, and discloses a guide wire storage mechanism for coronary heart disease interventional therapy, which comprises a shell, a motor I is arranged on the outer wall of the shell, the output end of the motor I penetrates through the interior of the shell and is fixedly provided with a screw rod, and the outer wall of the screw rod is in threaded connection with a sliding block I; a sliding rod is slidably connected to the interior of the first sliding block, the two ends of the sliding rod are fixedly connected to the inner wall of the shell, a triangular plate is fixedly connected to the lower surface of the first sliding block, a sprinkling can is arranged on the lower surface of the triangular plate, a spraying head is arranged on the inner wall of the sprinkling can, and a telescopic pipe is fixedly connected to the outer wall of the sprinkling can. A plurality of guide wires can be stored through the partition plate, the guide wires can be disinfected in cooperation with a first motor, a lead screw, a first sliding block, a sliding rod, a triangular plate, a sprinkling can and a spray head when the guide wires are stored, cross infection among different patients in subsequent use is prevented, the guide wires at different positions can be disinfected independently, and manpower and disinfection resources are saved.

The utility model discloses a vascular sheath and conveyor for assisting interventional therapy, which belongs to the technical field of medical instruments and comprises a sheath tube with a suction cavity in the middle, the sheath tube is sequentially formed by a lining layer, a middle layer and an outer tube layer from inside to outside in a sleeved composite mode, the lining layer and the outer tube layer are both high polymer material layers, the middle layer is a metal wire layer, and the outer tube layer is a metal wire layer. The middle layer has certain elastic restoring force; the middle layer is a woven net pipe of a net structure, the woven net pipe comprises a plurality of first woven wires and second woven wires, the first woven wires sequentially penetrate through the upper portions of the two second woven wires and then penetrate through the lower portions of the other two second woven wires, and the first woven wires are sequentially and circularly woven into a closed circular pipe. The sheath tube has the advantages that the first weaving wires and the second weaving wires are woven in a crossed mode to form the weaving net tube, so that the far end of the sheath tube has better radial elastic force and axial supporting strength, hardness and softness are achieved, and the outer diameter of the sheath tube can be reduced on the premise that the supporting strength of the sheath tube is guaranteed.

The invention discloses a cardiology department interventional therapy auxiliary supporting arm, and relates to the cardiology department interventional therapy auxiliary technical field, the cardiology department interventional therapy auxiliary supporting arm comprises a main body mechanism, the main body mechanism comprises a base, the upper surface of the base is fixedly provided with a supporting arm body, the upper surface of the supporting arm body is fixedly provided with a supporting frame, and the bottom surface of the base is fixedly provided with four universal wheels; an intervention taking-out mechanism is arranged above the supporting frame. The interventional taking-out mechanism comprises a clamping movable unit, the clamping movable unit is located above the supporting frame, the clamping movable unit is used for intervening and taking out a catheter, and according to the auxiliary supporting arm for interventional therapy in the department of cardiology, by arranging the clamping movable unit of the interventional taking-out mechanism, the catheter can be automatically clamped and pushed and outwards clamped and pulled out; the catheter can be automatically intervened and taken out, so that a person does not need to continuously intervene or take out the catheter, arm ache caused by continuous intervention or pulling out of the person is prevented, and the operation difficulty of medical personnel can be reduced.

A heart surgery preset soft sheath for interventional therapy through a cardiac apex way comprises a sheath tube and a large head part arranged at the rear end of the sheath tube, the sheath tube is communicated with an inner cavity of the large head part, an air bag is arranged on the outer side face of the front end of the sheath tube, a plurality of sets of narrow kerfs and small holes which are communicated front and back are formed in the peripheral side of the large head part, and the narrow kerfs and the small holes in each set are in one-to-one correspondence. A containing cavity is formed in the large head portion, a blood blocking valve is arranged on a base of the containing cavity, a port is formed in the outer end of the large head portion, and in a free state, the blood blocking valve blocks the port. Through the structural design, the depth of the hemostasis purse-string can be limited, the hemostasis purse-string can be limited on the cardiac muscle, the sheath tube cannot slip off in the operation process, the hemostasis purse-string is integrally made of medical silica gel with the hardness of 50-65 degrees, the influence on contraction and expansion of the cardiac muscle is small, and the operation line of the hemostasis purse-string is tensioned and clamped and fixed on the large head after puncture. The hydrophilic films on the air bag and the sheathing canal can reduce damage to the cardiac muscle in the placing and taking-out process.

The invention provides a double-balloon catheter for an interventional operation at a blood vessel bifurcation position in order to solve the problem that the interventional operation at the blood vessel bifurcation position at a focus position is difficult to operate. Comprising a catheter head section, a catheter main body section, a first balloon, a second balloon, a first fluid passage and a second fluid passage, wherein the catheter head section and the catheter main body section are integrally connected; the first balloon is arranged around the catheter head section; the second balloon is arranged around the catheter main body section at the position close to the catheter head section; the catheter main body section and the catheter head section jointly form an instrument passage; the catheter head section is provided with an end opening, and a side opening is formed in the position, between the first balloon and the second balloon, of the catheter body section. Compared with the catheter main body section, the catheter head section is more easily pressed and deformed.

The invention discloses an adjustable targeting area type cryoablation needle with a heating function and a novel refrigerant hole structure, and belongs to the technical field of interventional medical instruments, the adjustable targeting area type cryoablation needle comprises a needle rod, a vacuum wall, a J-T groove, a J-T groove sleeve and an adjusting device; the vacuum wall is sleeved with the needle rod, the area from the far end of the needle rod to the far end of the vacuum wall is a target area, the area of the vacuum wall is a vacuum heat insulation area, and the vacuum wall comprises a vacuum wall outer pipe and a vacuum wall inner pipe; the J-T groove is formed in the vacuum wall inner tube, the far end of the J-T groove is located in the far end of the needle rod, and a side hole is formed in the side wall of the J-T groove; the J-T groove is sleeved with the J-T groove sleeve; the J-T groove sleeve and the vacuum wall are fixed together through a connecting piece and can move synchronously and axially. And the adjusting device is used for adjusting the length of the target area. By innovatively designing the arrangement of the cooling ablation air holes and the heat conduction isolation layer, more accurate control over the cryoablation range is achieved, and the safety and effectiveness of cryoablation interventional therapy are improved.

The invention discloses a three-dimensional magnetic control navigation system which comprises a support, a multi-magnetic-pole device arranged on the support, a pose driving device, a magnetic pole magnetic field control device and a main control device. The main control device is used for outputting an import control signal based on three-dimensional blood vessel path parameters of an operator and a pre-constructed magnetic field control model when receiving an intervention control instruction of a user; the pose driving device is connected with the main control device and is used for driving the multi-magnetic-pole device to change the pose based on the imported control signal, so that the spatial distribution state of a magnetic field generated by the multi-magnetic-pole device is changed; and the magnetic pole magnetic field control device is connected with the main control device and is used for driving one or more single magnetic poles in the multi-magnetic-pole device to change the magnetic field intensity based on the imported control signal. By means of the system, space distribution and field intensity of the magnetic field can be conveniently adjusted, the magnetic guide wire can accurately penetrate through the blood vessel under driving of the magnetic field, manual operation of a doctor is not needed, and therefore interventional therapy can be completed within a short time.

The invention relates to the technical field of medical instrument control and medical automation, and discloses a cardiovascular interventional therapy postoperative patient infusion supervision system and method. The method comprises the following steps: preheating an arterial pressure sensor to heat balance, and collecting baseline data according to a set interval and duration to calculate zero offset and noise; then, steady-state blood pressure is obtained at low, medium and high speeds, an average value is corrected, a calibration point is provided for quadratic polynomial mapping, and a coefficient is analyzed and solved; blood pressure is collected in real time, after zero correction, median filtering and moving average, the recommended infusion rate is calculated, amplitude limiting is conducted within the safe upper and lower limits, and the infusion rate is converted into a pump driving instruction; meanwhile, theoretical and actual accumulated infusion quantities are tracked, errors are calculated, and intelligent alarming is conducted by combining an error threshold value and signal effectiveness.

The invention relates to the technical field of ablation path planning, in particular to a liver cancer thermal ablation path planning system based on deep reinforcement learning. The system comprises a target and dangerous area mask generation module, a pipeline distance field construction module, a thermal field prediction module, a breathing deformation prediction module, a multi-scale feature fusion module, a behavior preference reward module, a composite reward function module and a decision output module. Clinical pain points such as breathing interference, dangerous area avoidance and individualized adaptation are broken, the precision and safety of the liver cancer thermal ablation operation are improved, normal tissue damage and complications are reduced, intelligent decision support is provided for interventional therapy, and liver cancer minimally invasive therapy is promoted to be upgraded to precision and intelligence.

The invention provides an interventional operation magnetic control guide wire capable of repeating magnetic orientation. The interventional operation magnetic control guide wire comprises a core wire and a coating layer, the core wire is coated with the coating layer; the coating layer comprises magnetic composite particles and a first high-molecular polymer; the magnetic composite particles comprise magnetic powder and a low-temperature phase change material compounded on the surface of the magnetic powder. Compared with the prior art, the magnetic control guide wire provided by the invention can perform magnetic orientation after the guide wire is prepared, and magnetic field orientation does not need to be performed in the guide wire forming process, so that the guide wire preparation difficulty is simplified from the process; and meanwhile, magnetic orientation treatment can be carried out again according to requirements. The magnetic control guide wire is simple in production process, capable of achieving repeated magnetic orientation, excellent in magnetic response performance and operation flexibility and suitable for various minimally invasive surgeries and interventional therapy.

The invention provides a coronary stent with a gradually-changed section length structure, which adopts a degradable zinc-based material matrix and comprises the following components in percentage by mass: 0.4-0.1% of Li, 0.8-0.05% of Mn and the balance of zinc. A degradable polymer or a metal coating with drugs can be arranged on the surface of the stent base body. The stent base body is of a cylindrical net-shaped structure with gradually-changed section lengths, and the difference between the adjacent section lengths is 1-5 microns. The stent with the structure can effectively reduce the expansion speed of the stent along with the deformation of the balloon, so that the stent is stressed more uniformly in the expansion process, the influence of the dog bone effect on the stent is reduced, and the stability and the safety of the stent are improved. The preparation method comprises the steps of pipe drawing, laser cutting, cleaning, coating, electrolytic polishing, heat treatment and the like. The stent disclosed by the invention has good biocompatibility, flexibility and radial supporting force, is suitable for vascular interventional therapy, is beneficial to vascular recovery and reconstruction, and is degraded after vascular repair is completed.

The invention provides a postoperative patient supervision system for neural interventional therapy, and relates to the technical field of medical big data and artificial intelligence, and the system comprises a multi-modal data collection center, an interference feature decoupling unit, a trust capital quantification unit, a game strategy arbitration unit and a supervision execution unit. The multi-modal data acquisition center is configured to call time sequence monitoring data of a monitoring object; the trust capital quantification unit performs trust loss evaluation analysis on historical interaction feedback data; and the game strategy arbitration unit is configured to perform comparative analysis on the current clinical trust capital index and a preset trust threshold. According to the system, time-frequency domain matching is carried out on the residual error sequence and behavior state marking data, it is ensured that the system only carries out risk evolution prediction on neurogenic hemodynamic changes, and therefore the false alarm rate caused by external interference in a complex postoperative monitoring environment is remarkably reduced, and pure pathological feature components are extracted.

The invention discloses an embolism protection device, and belongs to the technical field of interventional therapy instruments. The conveying assembly comprises an outer pipe movably arranged in the guide pipe in a penetrating manner and an inner pipe movably arranged in the outer pipe in a penetrating manner; the filter is connected to the conveying assembly and has a recovery state in which the filter is accommodated in the catheter and a release state in which the filter extends out of the catheter; the filter comprises a filter membrane and a filter membrane support, the far end of the filter membrane is a closed end, and the near end of the filter membrane is an open end; the filter membrane bracket comprises a bracket fixing section fixed with the outer tube and a bracket reducing section unfixed with the outer tube, and the near end of the filter membrane is connected to the bracket reducing section; the inner pipe is fixedly provided with a transmission piece connected with or abutting against the variable-diameter section of the support. When the filter is in a release state, the inner tube drives the transmission part to move, and the transmission part can drive the stent reducing section to expand outwards or retract inwards relative to the radial direction of the outer tube, so that the outer diameter is adjusted after the filter membrane stent is released, the universality of the embolism protection device is enhanced, and the embolism protection device can be suitable for blood vessels with different diameters.