207 results about "Interventional treatment" 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 recoverable intravascular stent, and belongs to the technical field of interventional therapy instruments. The stent comprises a first stent body, a second stent body and an isolation component, and the outer side wall of the first stent body is used for directly supporting a blood vessel and can automatically contract in the radial direction; the second stent is coaxially arranged on the inner side of the first stent and used for supporting radial expansion of the first stent; the isolation part is arranged on the first bracket and / or the second bracket and is used for reducing the friction force between the first bracket and the second bracket; when the stent is taken out, the second stent is gradually taken out from the inner side of the first stent, the first stent automatically and radially contracts in the process of losing the support of the second stent to reduce the embedding force with the side wall of the blood vessel, and the whole stent is conveniently taken out; the intravascular stent is mainly used for solving the technical problems that in the prior art, the intravascular stent is large in resistance and not easy to take out.

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 a blood vessel OCT image training method, a blood vessel OCT image generating method and a blood vessel OCT image training device based on a DCN cross-modal fusion network and structure-blood flow coupling modeling. The method comprises the following steps: acquiring image data marked with a blood vessel segmentation result and a plaque position; acquiring the preprocessed OCT image data; registering the image data marked with the blood vessel segmentation result and the plaque position and the OCT image data so as to obtain registered image data; acquiring hemodynamic parameters; inputting the coronary artery CTA image, the image marked with the blood vessel segmentation result and the plaque position and hemodynamic parameters into a cross-modal fusion network based on deformable convolution so as to obtain CTA features of the cross-modal fusion network; and inputting the CTA features of the cross-modal fusion network into a trained OCT generation network so as to obtain a cross-section OCT image containing blood vessel wall and plaque information. The method can replace part of invasive OCT examination, assist doctors in assessing plaque vulnerability and guide interventional therapy.

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 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.

This invention relates to the field of medical device technology, specifically to an auxiliary device for hepatic artery angiography in interventional treatment of liver cancer. The device includes a fixed carrier with a flexible base and several supporting components. Each supporting component includes several arc-shaped connecting strips hinged together. Several adjustment boxes are installed on both sides of the flexible base, each containing an adjustment component. Each adjustment component includes a drive element with a bidirectional lead screw fixed to it. Nut seats are threaded to both ends of the bidirectional lead screw, and sliders are fixed to the nut seats. Traction cables are fixedly connected to the sliders, and the traction cables are hinged to the nodes of the arc-shaped connecting strips. The drive element is signal-connected to a control module. The control module controls the drive element to rotate the bidirectional lead screw forward and backward according to preset patient body shape parameters. This causes the sliders to slide through the nut seats, thereby causing the traction cables to pull the nodes of the arc-shaped connecting strips. This invention achieves multi-dimensional safety protection through mechanical structure linkage and sensor feedback, reducing surgical field interference.

The invention relates to the technical field of medical instruments, and discloses an intervention pump conveying device which comprises an expansion assembly, a conveying assembly and a pushing assembly, and the conveying assembly comprises a front end assembly and a rear end assembly which are detachably and fixedly connected; the expansion assembly is detachably and fixedly connected with the front end assembly, the front end assembly and the rear end assembly are connected to form an intervention channel allowing the pushing assembly to carry the intervention pump to penetrate through, and the pushing assembly is provided with a pushing channel allowing a pump line of the intervention pump to penetrate through in the axial direction. The pushing assembly can fix or loosen a pump line of the intervention pump so as to achieve pushing and releasing of the intervention pump. The invention further discloses another conveying method of the interventional pump. By constructing a split type collaborative structure, accurate pushing and stable releasing of the interventional pump are achieved, mechanical invasion and occupation to punctured blood vessels are reduced, the risk of complications such as thrombosis and bleeding is reduced, the surgical operation process is simplified, and the minimally invasive property and safety of interventional therapy are improved.

The application provides a recyclable vascular stent, and belongs to the technical field of interventional treatment instruments; the stent comprises a first stent, a second stent and a separation component; the outer side wall of the first stent is used for directly supporting a blood vessel and can automatically contract in a radial direction; the second stent is coaxially arranged on the inner side of the first stent and is used for supporting the first stent to expand in a radial direction; the separation component is arranged on the first stent and / or the second stent and is used for reducing the friction between the first stent and the second stent; when the stent is taken out, the second stent is gradually taken out from the inner side of the first stent, and the first stent automatically contracts in a radial direction in the process of losing the support of the second stent to reduce the embedding force with the side wall of the blood vessel, so that the taking out of the whole stent is facilitated; and the technical problem that the existing technology has a large resistance and is not easy to take out when the vascular stent is taken out is solved.

1. The name of the design product: bronchoscope sheath. 2. The use of the design product: hard bronchoscope sheath used in respiratory and interventional treatment surgery. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application relates to the technical field of medical equipment, in particular to a multifunctional control device for assisting endoscope interventional treatment, which comprises a foot pedal device, a cluster control box, a holding device and a signal line, the cluster control box is connected with the foot pedal device through the signal line, a plurality of holding devices are connected with the cluster control box, a control panel center is installed in the cluster control box, the holding device comprises a fixed base, a sliding push base, a sliding block body, a half-ring supporting body and a buckle cover body, the sliding push base is slidingly installed on the fixed base, a module fixing assembly is arranged at the right end of the fixed base, L-shaped limiting edge plates are symmetrically arranged at the two sides of the sliding push base, the sliding block body is slidingly installed on the sliding push base through the limiting edge plates, the application can make a plurality of endoscope examination operation modules be concentrated together, manual control is completely replaced by foot pedal electric control through mode function switching, and the task amount of hands is reduced.

The present application relates to the technical field of vascular interventional treatment instruments, and discloses a system and method for the selective laser ablation of restenosis after the treatment of Budd-Chiari syndrome, comprising a controller, a pulse emission module and a reference element built into a catheter, the system is based on the reference element for periodic self-calibration, collects and processes the associated photoacoustic signals to identify the tissue type, and then realizes the selective ablation of the diseased tissue and the boundary self-stop when the healthy tissue is touched. The present application converts the traditional open-loop energy delivery into a closed-loop self-control process with real-time information interaction capability, so that the ablation operation end can in-situ perceive the tissue boundary and realize autonomous stop, thereby avoiding the problem of damaging the healthy tissue due to uncontrollable energy application, improving the safety of the operation, and having the advantages of high precision, few complications, repeatable treatment and the like.

The invention provides cardiovascular intervention postoperative treatment equipment which structurally comprises a lying plate, a moving seat, a telescopic part, a positioning block and a treatment assembly, the lying plate is embedded in the upper middle area of the moving seat, the telescopic part is fixed to the lower middle area in front of the moving seat and is in interval fit with the lying plate, and the positioning block is fixedly connected with the other end of the telescopic part; the treatment assembly is arranged at the upper end of the positioning block and is horizontally communicated with the lying plate; after the lying plate is further improved, the inner side of the plate body is completely covered by the sponge cushion, so that the back bone of a patient can be prevented from being in direct contact with the plate body, and the pain caused by the influence of the hardness of the plate body on the back bone is prevented; then, the infrared positioner on the plate body can be matched with the top part of the treatment assembly in a light induction mode through the infrared generating body of the infrared positioner, so that the cardiovascular treatment area of the patient can be determined through infrared induction instead of medical staff, and therefore the position determination accuracy and efficiency can be improved.

The invention relates to the technical field of interventional therapy, and particularly discloses a percutaneous puncture navigation system which comprises a camera module and a display module, the display module displays a main picture shot by the camera module, and an electronic protractor picture is suspended on the main picture as a floating layer; a puncture layer S, a puncture point A, a puncture angle alpha, a puncture depth D and a puncture target point T of a focus area of a patient are determined, a camera module is arranged on one side of the patient in the scanning direction, and the camera module aims at the body surface of the focus area to shoot, so that a round point O in a picture of the electronic protractor coincides with the puncture point A of the body surface of the patient; a datum line in an electronic protractor picture is parallel to the horizontal plane; the puncture needle coincides with the angle line of the angle alpha in the picture of the electronic protractor, and the puncture needle enters the depth D along the angle line alpha of the electronic protractor and then reaches the puncture target point T. The puncture cloth needle arranged as the puncture needle achieves the visual navigation function, reduces the puncture difficulty, improves the puncture precision and reduces the puncture scanning frequency.

The application provides an atrial stent and relates to the technical field of medical devices.The atrial stent comprises a ball cage, a cylindrical stent, a sealing membrane and an artificial valve; the ball cage is supported in an atrium, and a ball cage opening is formed in the bottom end of the ball cage; the cylindrical stent extends from the ball cage opening to the inside of the ball cage; the sealing membrane covers the bottom of the ball cage and the cylinder wall of the cylindrical stent; and the artificial valve is located in the cylindrical stent.In the application, the ball cage is supported in the atrium after surgery, and the structure is stable, so that relative displacement of the ball cage and the original valve cannot be caused by the beating of the heart or the flushing of blood; and the blood in the atrium can flow into the ventricle through the cylindrical stent; the original valve still maintains the original function; the artificial valve and the original valve form a double-valve structure; and the regurgitation caused by the incomplete closure of the original valve during the output of the blood in the ventricle is blocked by the artificial valve, so that the functional defects of the original valve are complemented, and an ideal interventional treatment effect can be achieved.

The invention provides a liquid phase tandem time-of-flight mass spectrometry detection method for the content of tirofiban in liver tissue, and belongs to the technical field of detection. According to the present invention, the concentration of tirofiban in the liver tissue is detected through the liquid phase tandem time-of-flight mass spectrometry, such that the characteristics of low detection limit, immediate analysis, high sensitivity, good repeatability, good indoor reproducibility and high accuracy are provided, the matrix effect is substantially reduced, the recovery rate is improved, and the precise detection of tirofiban is achieved. The method is successfully applied to detection of tirofiban in liver tissues in a clinical animal experiment stage, has important clinical significance for monitoring the in-vivo content of tirofiban after medication, avoids occurrence of postoperative related complications in serious interventional therapy, and has a good clinical application prospect. And side effects such as poor thrombolysis effect caused by insufficient medication and bleeding caused by excessive medication are prevented.

The invention belongs to the technical field of medical instruments, and particularly relates to a pneumology department bronchoscope interventional therapy device which comprises a pillow plate, and a mouth opening auxiliary assembly is arranged on the pillow plate; the mouth opening auxiliary assembly comprises a limiting rod fixedly connected to one side of the support, the lower end of the limiting rod is fixedly connected to the pillow plate, a lifting plate is slidably arranged on the limiting rod, a fixing ring is fixedly connected to the middle of the lifting plate, fixing plates are fixedly connected to the two sides of the fixing ring, and a telescopic plate is slidably arranged on one side of each fixing plate. One end of the telescopic plate is fixedly connected with a clamping plate; the fixing ring is further provided with a bronchoscope moving auxiliary assembly. According to the bronchoscope moving auxiliary assembly, in the examination process, the bronchoscope is limited among the multiple limiting balls, so that the bronchoscope cannot move uncontrollably in the oral cavity of a patient, bruise and bleeding caused by friction between the bronchoscope and the oral cavity are effectively avoided, and then pain and discomfort of the patient are relieved.

The present application relates to the technical field of medical devices, and discloses an interventional therapy delivery device. The interventional therapy delivery device comprises a tube body and an operating handle. The tube body is composed of an inner hypotube and an outer hypotube, and is fixed at a distal end by a cutting groove. The operating handle is provided with a base, a catheter seat, an adjusting knob, a threaded part, an adjusting knob rotating rod, a fine adjustment knob and a fine adjustment knob rotating rod. The axial movement of the outer hypotube is controlled by the threaded engagement of the adjusting knob to adjust the bending angle. The fine adjustment knob adjusts the bending direction by cooperating with the limiting block and the sliding groove. The present application improves the torque transmission efficiency, reduces the bending radius, simplifies the operation process, and thus improves the accuracy and operation flexibility in interventional surgery.

The present invention provides an intravascular filter and an intravascular calcified tissue removal device, wherein the filter includes a guide wire, a support frame, and a filter membrane; the support frame includes a plurality of struts, and the struts include a first end, a second end, and a transition portion located between the first end and the second end; the first ends of the plurality of struts are centrally connected together to form a fixed end of the support frame, and the second ends of the plurality of struts are radially opened circumferentially to form a first open end of the support frame, and the filter membrane is covered on the first open end, and the filter membrane allows blood to flow through and blocks foreign tissue in the blood flow from passing through; in a natural state, the first open end is in an open state, so that the second ends of the plurality of struts can abut against the inner wall of the blood vessel in which it is located; the first open end can be elastically retracted under the action of a restraining force to reduce the caliber of the first open end. Based on the above filter, broken lesion fragments can be intercepted and blocked during interventional treatment to prevent them from flowing to the distal end and causing other safety hazards.

The utility model discloses a balloon dilatation pressure pump for interventional therapy intraoperative nursing, which comprises a balloon dilatation pressure pump main body, the balloon dilatation pressure pump main body is provided with a fixing splint in a matching way, the fixing splint is arranged in a rectangular way, and the front side and the rear side of the fixing splint are respectively provided with an adjusting device and a pipeline fixing device. The fixing clamping plate is additionally arranged on one side of the disposable balloon dilatation pressure pump, and the disposable balloon dilatation pressure pump is fixed through the butt joint rod and the binding belt on the adjusting device, so that the disposable balloon dilatation pressure pump is convenient to assemble and disassemble, use of medical staff under various conditions is met, and the disposable balloon dilatation pressure pump is convenient to use. Meanwhile, the extrusion fixing clamp arranged on the rear side can fix the balloon dilatation pressure pump on a medical pipeline to assist in fixing the position of the balloon dilatation pressure pump.

The invention relates to the technical field of vascular interventional therapy instruments, and discloses an excimer laser ablation system and method for restenosis after Budd-Chiari syndrome interventional therapy, the excimer laser ablation system comprises a controller, a pulse transmitting module and a reference element arranged in a catheter, and the system performs periodic self-calibration based on the reference element; according to the method, associated photoacoustic signals are collected and processed to identify tissue types, selective ablation of lesion tissues and boundary self-stop when healthy tissues are touched are further achieved, traditional open-loop energy delivery is converted into a closed-loop self-control process with real-time information interaction capacity, and the method has the advantages of being simple in structure, convenient to operate and high in practicability. The ablation operation tail end can sense the tissue boundary in situ and achieve automatic stopping, so that the problem that healthy tissue is damaged due to uncontrollable energy application is solved, the safety of an operation is improved, and the advantages of being high in precision, few in complication, capable of achieving repeated treatment and the like are achieved.

The invention discloses a heart and cerebral vessel interventional therapy device for the department of cardiology, and relates to the field of interventional therapy, the heart and cerebral vessel interventional therapy device comprises a linear module track, a U-shaped mounting frame is movably mounted on the linear module track, a lifting plate is slidably mounted on the U-shaped mounting frame, a movable sliding table is slidably mounted on the lifting plate, and an interventional box is arranged on the bottom side of the movable sliding table; an intervention head is arranged at one end of the intervention box. According to the device, medical staff can be helped to carry out heart and cerebral vessel interventional therapy in the state of being far away from X-ray equipment, the medical staff can avoid direct radiation exposure in a shielding radiation room, the harm of radiation to the medical staff is greatly reduced, occupational injuries are reduced, and the treatment efficiency is improved. According to the device, alternate arrangement and use of the guide wire, the catheter and the stent conveying wire can be completed, interventional therapy of heart and cerebral vessels is achieved, meanwhile, the physical strength effect of medical staff in the operation process is lowered, and the medical staff can keep a good physical state to treat more patients.

The invention relates to the technical field of catheter fixing devices. The cardiology department clinical interventional therapy catheter fixing device comprises a binding assembly, a first connecting assembly is installed at one end of the binding assembly, a second connecting assembly is installed at the other end of the binding assembly, a limiting assembly is installed at the top of the binding assembly, and a fixing assembly is installed at the top of the binding assembly. The limiting assembly is connected with the fixing assembly and limits the fixing assembly. A binding bandage is bound on the body of a patient, a second fixing shaft slides into clamping grooves in two clamping arms, the second fixing shaft is fixed through the clamping grooves under the torsion action of a first torsion spring, and limiting plates on the inner sides of the clamping grooves can be clamped into limiting grooves in the outer wall of the second fixing shaft, so that the second fixing shaft is fixed. The friction force between the binding bandage and the skin of the patient can be increased through the multiple rubber sheets on the rubber belts at the two ends of the binding bandage, and therefore the installation stability of the binding bandage can be improved.

A wireless augmented reality (AR) system for use by medical practitioners during diagnostic, surgical, or interventional procedures is disclosed. The system includes AR eyewear with integrated heads-up displays (HUDs) embedded in semi-transparent optical lenses, enabling video content to be projected without obstructing the user's natural field of view. Each lens includes a high-resolution micro display and an ambient light sensor for automatic brightness adjustment. The eyewear is coupled via a wired connection to a portable control unit containing a microprocessor for real-time decoding and formatting video signals. A wireless transmitter connects to a medical video source and transmits the live feed to the control unit via a high-bandwidth wireless protocol. The system enables projection of anatomical overlays in real-time, supporting visualization of muscle tissue, nerves, tendons, connective structures, and any other human or animal body part.

The invention discloses a reverse micro-catheter for interventional therapy, which comprises a catheter main body provided with a through consumable channel for an interventional consumable to pass through, a plurality of restraining cavities are arranged in the catheter wall of the catheter main body along the axial direction parallel to the catheter main body, and the restraining cavities are distributed along the circumferential direction of the catheter main body; at least part of the elastic piece is located in the restraining cavity and is in sliding connection with the restraining cavity, and the far end of the elastic piece has an initial state restrained by the restraining cavity and an expansion state in which the elastic piece is separated from restraining and expands under the action of self elasticity; the elastic sleeve is arranged at the far end of the catheter body, the far end of the elastic piece is configured to extend into the elastic sleeve in an operable mode, and in the expansion state, the elastic piece stretches the elastic sleeve and enables the elastic sleeve to expand outwards. According to the microcatheter, a stable axial guide channel can be formed, the forward guide wire can be conveniently led into the reverse microcatheter, the inner space of the catheter body is released to the maximum extent through the restraining cavity formed in the catheter wall, and the effective diameter of the consumable channel is remarkably increased.

The utility model relates to the technical field of medical instruments, in particular to a guide catheter assembly which comprises a plurality of layers of sleeve parts, the sleeve parts are thinned step by step from the first step to the Nth step and are sequentially nested, each sleeve part comprises a catheter body, the near end of each catheter body is provided with an operation handle used for controlling the corresponding sleeve part, and the operation handle is connected with the corresponding sleeve part. The far end of the catheter body is in a bent shape relative to the catheter body, and the far end of the catheter body from the first step to the Nth step has the same or different preset curvatures; and the interventional instrument can penetrate through the Nth-step sleeve piece so as to reach the target far-end blood vessel under the guidance of the multi-layer sleeve piece. According to the scheme, the defects that in the prior art, due to the fact that a guiding catheter is not matched with a pulmonary artery anatomical structure, the operation difficulty is large, time is long, and radiation exposure is large are overcome, and an interventional access is rapidly built in interventional therapy with complex and bent blood vessels.

A method for remote intervention for a subject includes acquiring images of a region of interest in the subject using an interventional device positioned on the subject. The region of interest includes a target tissue, and the subject is located at a first site. The method further includes analyzing the acquired images using an image analysis module to identify and label the target tissue in the region of interest and transmitting the labeled images from the first site to a second site for expert review. The second site is remote from the first site. The method further includes receiving a command signal from the second site at the first site, the command signal being generated based on the expert review of the labeled images and configured to control operation of the interventional device. In some embodiments, the method may further include analyzing the acquired images to determine a path to the vessel while avoiding critical structures.

The invention discloses an extended catheter, which belongs to the technical field of interventional therapy instruments and comprises a push rod and a catheter connected to the far end of the push rod. The catheter comprises a catheter near-end section and a catheter far-end section, the catheter far-end section is located at the farthest end of the catheter, the diameter of the catheter far-end section is smaller than that of the catheter near-end section, and the outer wall of the catheter far-end section is provided with a flow guide groove which is concave inwards. The catheter far-end section with the reduced outer diameter is arranged at the farthest end of the catheter, so that the catheter can conveniently pass through a small and narrow blood vessel; the outer tube wall of the far-end section of the catheter is provided with the flow guide groove which is concave inwards, and in the operation process, when the outer tube wall of the far-end section of the catheter is attached to the wall of a blood vessel, blood in the blood vessel can flow towards the far end along the flow guide groove, so that the phenomenon that local blood pressure is too high due to blockage of the blood vessel is avoided, and damage to a human body caused by long-time blocking of the blood vessel by the catheter is avoided; therefore, the catheter can be safely inserted into a narrow blood vessel deeper in the body.

The application provides an intervention treatment controllable bending catheter, and relates to the technical field of medical catheters. The intervention treatment controllable bending catheter comprises a cannula, an adjusting assembly is installed on the cannula, a large fastening ring is threadedly connected to the front of the adjusting assembly, a stabilizing assembly is threadedly connected to the front of the large fastening ring, a rear section assembly is fixedly installed at the front of the stabilizing assembly, a plurality of middle section assemblies are installed at the front of the rear section assembly, and a connecting outer tube and a connecting inner tube are installed between adjacent middle section assemblies. In use, the front section assembly is inserted into a human body, the front section assembly, the middle section assemblies and the rear section assembly are in a non-forced connection state, the insertion into the human body is facilitated, after the insertion, the adjusting assembly and the large fastening ring are rotated to tighten the steel wire, the front section assembly, the middle section assemblies and the rear section assembly enter a forced connection state under the action of the steel wire, and the front section assembly, the middle section assemblies and the rear section assembly are integrated, thereby facilitating subsequent operation.