90 results about "Interventional therapy" patented technology

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 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 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 a neurosurgery interventional therapy implantation dosing device, and belongs to the field of medical instruments, the neurosurgery interventional therapy implantation dosing device comprises an injection seat, the injection seat is provided with a first storage cavity for storing liquid medicine, the injection seat is provided with a catheter communicated with the first storage cavity, and the injection seat is fixedly provided with a first silica gel pad; the injection seat is provided with a flow guide assembly, the flow guide assembly is used for collecting tissue fluid generated by body rejection, the injection mechanism is fixed on an arm of a patient through a binding assembly, the injection mechanism is matched with the driving mechanism to add a medicament into the injection seat, and a flow guide groove in the outer wall of the injection seat guides the peripheral tissue fluid to flow. The supporting net facilitates the tissue fluid to enter the second storage cavity along the flow guide grooves, the arc-shaped plates in the second storage cavity are matched with the flow guide holes in the arc-shaped plates, the tissue fluid smoothly flows into the second storage cavity, and the structure constructs an efficient drainage path to efficiently collect the tissue fluid.

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 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 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 invention discloses a system and a method for detecting branch blood flow disorder in coronary artery bifurcation lesion interventional therapy. The system comprises a physiological signal acquisition unit, an angiography unit, a coronary intravascular ultrasound unit, a data processing and control unit and a display unit. The method is realized through the following steps: calculating baseline functional indexes and extracting baseline morphological parameters based on radiography and vascular ultrasound images before an operation; the method comprises the following steps: synchronously acquiring real-time radiography and ultrasonic images before and after key steps in an operation, and calculating real-time functional indexes and real-time morphological parameters according to the real-time radiography and ultrasonic images; fusing the real-time data with the baseline data, and calculating a comprehensive damage index; and according to whether the index exceeds a preset threshold, generating a graded early warning signal in real time. According to the method, image data which can be conventionally obtained in an operation is utilized, real-time fusion and quantitative evaluation of function and form information are achieved, objective decision support in the operation is provided for an operator, intervention opportunities can be accurately mastered, and the operation safety and curative effect are improved.

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 utility model relates to the field of interventional therapy, and discloses a vena cava interventional valve. The vena cava interventional valve comprises a body support, the body support comprises an upper cone part, a barrel part and a lower cone part, and the upper cone part and the lower cone part are arranged at the two ends of the barrel part respectively; the fixing piece is arranged at the joint of the upper cone part and the barrel part; the covering film is arranged on the outer side of the body stent; and the artificial valve leaflet is arranged in the barrel part of the body bracket. The conveying size of an existing inferior vena cava filter is small and is only 6F, and the inferior vena cava filter is improved on the basis of the basic structure of the inferior vena cava filter, so that the inferior vena cava filter has the same small conveying size and fixing efficiency; by means of the fixing piece, positioning can be accurately and easily achieved in the valvular operation, and the pressing difficulty of the surgical operation is reduced; and the valve can be completely recovered before being completely released, so that the safety of the operation is improved.

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 belongs to the technical field of medical instrument maintenance, and particularly relates to an interventional therapy medical instrument maintenance device and method.The interventional therapy medical instrument maintenance device comprises a disinfection maintenance cabinet, a sealing end cover is movably clamped to the middle of the back face of the disinfection maintenance cabinet through a hinge, and a bearing bottom cover is fixedly installed on the lower surface of the disinfection maintenance cabinet; the inner wall of the bearing bottom cover is of a hollow structure, a conical isolation piece is movably connected to the upper surface of the bearing bottom cover in a clamped mode, a connecting groove is formed in the middle of the lower surface of the conical isolation piece, and a stretching mechanism is connected into the inner arc face of the connecting groove in a penetrating mode. One side of the medical instrument cleaning device is provided with a cleaning device, the complex structure of the medical instrument is deepened, efficient sterilization, peculiar smell removal and low-temperature protection are achieved, the other side of the medical instrument cleaning device adopts a chemical agent spraying mode to clean dirt, agents are accurately matched for instruments made of different materials to achieve disinfection and material protection, and the differentiated and complementary maintenance mode is adopted for all links from cleaning, disinfection to material protection.

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.

The utility model provides an ultrasonic detection device and a medical system. The ultrasonic detection device comprises an insertion end inserted into the detected cavity in the insertion direction, an optical assembly and an ultrasonic assembly are arranged in the insertion end, and the ultrasonic assembly receives ultrasonic signals to form an ultrasonic imaging area. Light rays emitted from the optical assembly penetrate through the ultrasonic imaging area and penetrate through the detected cavity to form a visible optical marking area on the outer wall surface of the detected cavity. When the ultrasonic detection device is used for ultrasonic-assisted interventional therapy, a doctor can observe the outer wall surface of the detected cavity and can deduce the positions of the insertion end and the lesion area of the ultrasonic detection device by searching the position of the visible optical mark area on the outer wall surface; a doctor can more conveniently and noninvasively position the insertion end and the lesion area, and the positioning can be more accurate.

This application provides a catheter for vascular interventional therapy, belonging to the field of medical device technology. The catheter includes a catheter assembly and a connecting assembly. The catheter assembly includes an outer tube, an inner tube, a balloon, and a connector. The inner tube passes through the outer tube, and the balloon is disposed at the tail end of the outer tube. The connecting assembly includes a catheter seat, an injection tube, a monitoring tube, and a pressure sensor. The catheter seat and the ends of the outer tube are connected opposite each other, and the inner tube is fixedly inserted through the catheter seat. By using the outer tube, inner tube, balloon, connector, catheter seat, injection tube, monitoring tube, and pressure sensor, and by having the inner tube pass through the outer tube and balloon, and then connecting to the bottom catheter seat with the connector, the outer and inner tubes can be disassembled and separated, facilitating retrieval. Simultaneously, the monitoring tube and pressure sensor connected to the catheter seat can monitor the pressure of the internal injection fluid, improving the safety of use.

The invention discloses a valvular heart disease severity AI grading diagnosis method, which comprises the following steps of executing multi-source data acquisition, and acquiring a clinical medical record text, cardiac ultrasound image data and a valvular heart disease interventional therapy prognosis data set of a patient to be diagnosed; wherein the clinical medical record text comprises patient subjective symptom description information, and the interventional therapy prognosis data set comprises post-treatment symptom remission rate, complication occurrence rate and lifetime data of patients with different severity levels. The limitation that the prior art only depends on single objective image data is broken through; according to the method, symptom quantitative processing and targeted image feature extraction are combined, comprehensive capturing of multi-dimensional features is achieved, then a grading threshold value is reversely calibrated through a prognosis prediction result, grading deviation is effectively corrected, and the accuracy and clinical matching degree of grading diagnosis are remarkably improved.

The utility model discloses a guide wire guiding device for interventional therapy, which belongs to the technical field of interventional therapy guiding and comprises a guide wire body and an auxiliary guiding device for guiding in the guide wire body, the guide wire body is provided with a limiting structure and an auxiliary rotating structure, the limiting structure comprises a detachable clamping ring, and the clamping ring is provided with an auxiliary rotating structure. A first clamping block is arranged on the clamping ring, the auxiliary rotating structure comprises a fixing ring arranged on the guide wire body in a sleeving mode and a handle, and a connecting rod is arranged between the handle and the fixing ring; the clamping ring is arranged, the clamping ring is composed of the two semi-rings, the guide wire body is clamped between the two semi-rings, the second clamping hole and the second clamping block are clamped to enable the two semi-rings to be tightly fixed, the clamping ring is fixed to the branch pipe through cooperation of the first clamping hole and the first clamping block, and it is guaranteed that the guide wire cannot rotate at will during injection; and the discomfort of the patient can be relieved.

The invention provides an embolism protection device, and belongs to the technical field of intracranial interventional therapy. The device comprises a conveying guide wire, a first protective umbrella and a second protective umbrella, wherein a first cavity is formed in the conveying guide wire; the first protection umbrella is arranged at the far end of the conveying guide wire and provided with a one-way control component which is communicated with the two sides in a one-way mode. The second protective umbrella is arranged on the conveying guide wire at the near end of the first protective umbrella and is used for intercepting escaped emboli; a suction hole communicated with the first cavity is formed in the conveying guide wire between the second protective umbrella and the first protective umbrella; the suction hole sucks liquid between the first protection umbrella and the second protection umbrella, and a negative pressure area is formed between the first protection umbrella and the second protection umbrella and used for accelerating blood circulation near the device; when the second protective umbrella is contracted, the suction hole continues to work and is used for preventing emboli from escaping; the protective umbrella is mainly used for solving the technical problems that in the prior art, a protective umbrella hinders blood circulation, emboli cannot be collected actively, and the emboli are prone to escape during contraction.

The invention relates to the technical field of medical instruments, and provides a side branch protection balloon catheter for bifurcation lesion interventional therapy, and the side branch protection balloon catheter for bifurcation lesion interventional therapy according to the embodiment of the invention comprises an outer tube, a main branch balloon, a side branch balloon, a constraint structure and a drug coating, the main branch balloon is connected with the far end of the outer tube through a first tube pin; the side branch balloon is connected with the far end of the outer tube through a second tube pin; the restraint structure is used for connecting the near end of the main branch balloon and the second pin, and at least one of the surface of the main branch balloon and the surface of the side branch balloon is coated with the medicine coating. The restraint structure is connected with the near end of the main branch balloon and the second pin, the double-balloon cooperative positioning structure is matched, smoothness of side branch blood vessels is guaranteed while main branch blood vessels are expanded, the problem that positioning of the main branch balloon and the side branch blood vessels is difficult is effectively solved, and the positioning accuracy of the main branch blood vessels and the side branch blood vessels is improved. The method has the advantages that the cooperative positioning precision of the main branch and side branch balloons is improved, and the surgical risk is reduced.

This disclosure provides a method for measuring the release rate of a sample and an experimental cup. The method includes: placing a sample containing a specific element into the experimental cup and sealing it to constrain the position of the sample; irradiating the experimental cup containing the sample so that the specific element in the sample becomes radioactive by producing its own radioactive isotope; pouring a solution into the experimental cup and sealing it, immersing the sample in the solution to produce radioactive isotopes in the solution; measuring the content of radioactive isotopes in the solution at a set time; calculating the release rate of the radioactive isotopes of the sample based on the content and the inherent amount of the specific element in the sample, using the release rate to characterize the release of the radioactive sample into the human body during interventional therapy.

The application discloses a drug balloon catheter which can keep the blood supply of the distal end, comprising a tip tube, a balloon, an inner tube and an outer tube, the proximal end of the balloon is fixed on the outer tube and the distal end of the balloon is fixed on the tip tube, the inner tube extends out of the outer tube and passes through the hollow cavity of the balloon, the distal end of the inner tube extends out of the balloon and communicates with the tip tube, and the drug balloon catheter further comprises a blood flow anti-blocking mechanism which is used for forming a blood flow passage which passes through the section where the balloon is located and communicates with the blood vessel in the drug balloon catheter. The application can keep the blood supply of the distal end through the blood flow passage without blocking the blood vessel during the interventional therapy, avoids the ischemia of the distal end, has a longer interventional therapy time, fully releases the drug, and is not easy to rebound and contract after the interventional therapy is completed.

The utility model discloses improved interventional therapy patient trousers which comprise a patient trousers body, containing pockets are arranged on the two sides of the upper portion of the inner side of the patient trousers body, a vertical zipper and a transverse zipper are arranged below the containing pockets and in the middle of the containing pockets respectively, and sealing bags are arranged at the 1 / 3 positions below thighs on the two sides of the patient trousers body. The outer side of the sealing bag adopts a transparent acrylic film; and double-row buckles are arranged at the top of the sealing bag. The upper part of the patient trousers body is provided with the vertical zipper and the transverse zipper, so that a nurse can conveniently open and check the condition of a puncture part, and a doctor can conveniently treat a wound; a placing bag for placing a sandbag is arranged at the groin of the patient trousers body, so that compression after femoral artery paracentesis is facilitated; the inner sides of the thighs on the two sides of the patient trousers body are provided with the sealing bags for containing the pacemaker, the outer sides of the thighs are made of transparent acrylic film materials, the operation condition of the pacemaker can be observed conveniently, discomfort caused by carrying and trousers taking off of a patient after an operation is reduced as much as possible, meanwhile, nursing is facilitated, the design is ingenious, practicability is high, and the patient trousers are suitable for popularization.

The invention provides a peritoneal dialysis catheter interventional therapy device based on an endoscope technology, and relates to the technical field of medical instruments, and the peritoneal dialysis catheter interventional therapy device based on the endoscope technology comprises an optical imaging module which is integrated with a high-resolution optical endoscope; the composite catheter structure is a catheter with the diameter matched with that of the optical imaging module, at least one main working channel and an auxiliary channel for lavage drainage are arranged in the catheter in the axial direction, and the main working channel is used for containing at least one minimally invasive tool; the flexible mechanical structure is arranged at the front end of the catheter and driven by a micro motor, and the flexible mechanical structure, the optical imaging module and the catheter form a flexible endoscope body; and the external control unit comprises a handle and a display screen. By integrating an endoscope technology and a minimally invasive tool, key pain points in PD treatment are solved.

This invention provides a postoperative patient monitoring system for neurointerventional therapy, relating to the fields of medical big data and artificial intelligence. It includes a multimodal data acquisition center, an interference feature decoupling unit, a trust capital quantification unit, a game strategy arbitration unit, and a monitoring execution unit. The multimodal data acquisition center is configured to retrieve time-series monitoring data of the monitored subjects. The trust capital quantification unit performs trust loss assessment and analysis on historical interaction feedback data. The game strategy arbitration unit is configured to compare and analyze the current clinical trust capital index with a preset trust threshold. This invention's system performs time-frequency domain matching between residual sequences and behavioral state labeling data, ensuring that the system only predicts the risk evolution of neurogenic hemodynamic changes. This significantly reduces the false alarm rate caused by external interference in complex postoperative monitoring environments and extracts pure pathological feature components.

The application relates to the technical field of medical devices, and particularly discloses a self-adaptive guide wire delivery device for vascular interventional therapy, which comprises a clamping guide mechanism, a first driving assembly and a second driving assembly. The clamping guide mechanism is used for providing accurate guidance and stable clamping force for a guide wire catheter; the first driving assembly is used for realizing self-regulation and control of the clamping force of the clamping guide mechanism; and the second driving assembly is used for providing a conveying driving force for the clamping guide mechanism and driving the guide wire to be conveyed along a preset guide direction smoothly. The clamping guide mechanism of the device adopts an under-actuated structure, a plurality of guide wheel assemblies are driven to rotate synchronously through the second driving assembly, the left and right sides of the guide wire catheter can be uniformly stressed, and the end positioning precision of the guide wire catheter is improved. Meanwhile, in combination with the function of the first driving assembly in self-regulation and control of the clamping force, the flexible selection requirement of guide wire catheters of different specifications can be met, and the device can be adapted to various vascular interventional operation conditions.

The utility model relates to a cardiovascular interventional therapy simulation training device, which relates to the field of medical teaching aids, and comprises a base, a simulation box is arranged on the base, the simulation box comprises a box body and a sealing cover, a first filling rubber plug is arranged on the sealing cover, a cardiovascular model is transversely arranged in the box body in a penetrating manner, and the cardiovascular model is provided with a second filling rubber plug. The two ends of the cardiovascular model are sleeved with intervention boxes in a sealed mode, and each intervention box is provided with a second filling rubber plug and an intervention point rubber plug. The interventional needle is punctured into the cardiovascular model through the interventional dispensing rubber plug, then simulation training can be carried out, students can conveniently carry out simulation operation training according to corresponding lesion forms by replacing different cardiovascular models, the operation learning curve of the students is greatly shortened, and the training efficiency is improved. And the proficiency and skills of students on related instrument operation in the operation process are improved.

This utility model relates to the field of vascular interventional therapy technology, specifically to a femoral artery hemostatic membrane auxiliary forming device, including a positioning component and a forming component. The positioning component consists of two shells, and a pin plate is fixedly connected to the side of the shell. The forming component is connected to the pin plate. The positioning component drives the hemostatic membrane to rotate by pressing a knob. The wound hemostatic membrane forms a cylindrical shape after passing through the arc-shaped block and push groove on the forming component. Then, the push plate moves horizontally to push the cylindrical hemostatic membrane to a position aligned with the center of the protective tube. The hemostatic membrane is pushed into the protective tube by the push tube.