221 results about "Vein thrombosis" patented technology

The invention discloses a venous thrombosis risk assessment method and system based on a large language model and deep learning, and the method and system can comprehensively capture the clinical information of a patient through the comprehensive utilization of multi-dimensional and multi-modal clinical diagnosis and treatment data, and improve the accuracy of risk assessment. An automatic feature extraction and selection technology is realized by applying a large language model, manual intervention is reduced, and the comprehensiveness and accuracy of feature extraction are improved. The introduction of the deep learning model enhances the prediction performance of the model, supports real-time data processing and risk prediction, and realizes the automation and real-time performance of risk assessment. Besides, the model framework supports continuous learning and updating, can adapt to new clinical data and research progress, and keeps advancement and effectiveness of the model, thereby providing high-quality hospitalized patient VTE risk assessment services.

Systems and methods can remove material of interest, including blood clots, from a body region, including but not limited to the circulatory system for the treatment of pulmonary embolism (PE), deep vein thrombosis (DVT), cerebrovascular embolism, and other vascular occlusions. The capture system can include a tubular body comprising a first end, a second end, and an axial length therebetween, the first end having an opening and a capture guide. The capture system can include one or more tensioners coupled to the capture guide. The tubular body has a first configuration in which the first end and the capture guide are expanded while the second end and a majority of the tubular body remains compressed. The tubular body is transformable to a second configuration by application of tension by the tensioners. The catheter can remove a large volume of clot. In some embodiments, the body of the catheter or the funnel tip is expandable. The catheter can include a dilator and a peel-away cover.

Systems and methods can remove material of interest, including blood clots, from a body region, including but not limited to the circulatory system for the treatment of pulmonary embolism (PE), deep vein thrombosis (DVT), cerebrovascular embolism, and other vascular occlusions.

The invention discloses a venous thrombosis risk assessment method based on a large language model, and relates to the technical field of medical artificial intelligence, and the method comprises the steps: collecting thoracic surgery diagnosis and treatment data of a patient, carrying out the space-time alignment, generating a standard diagnosis and treatment data flow, and carrying out the homomorphic encryption of the standard diagnosis and treatment data flow, and forming an encrypted patient data package; inputting the encrypted patient data packet into a multi-task large language model, performing feature extraction and semantic coding by a feature coding layer, performing time sequence modeling and risk probability calculation by a risk quantification layer, and outputting a venous thromboembolism risk level of a patient; and performing feature decoupling and potential space mapping on the encrypted patient data packet to obtain thrombus semantic potential features. Through the multi-task large language model, the dual machine learning algorithm and the homomorphic encryption, the accuracy of venous thrombosis risk early warning is improved, and the safety of the risk assessment process is enhanced.

The invention discloses a deep venous thrombosis early warning method and system based on multi-modal physiological signals, and relates to the technical field of health monitoring. The method is used for realizing thrombus early recognition and graded early warning. The method comprises the following steps: synchronously acquiring physiological signals of lower limbs on two sides through a multi-modal sensing device, performing motion artifact elimination and signal quality screening, and generating preprocessed time sequence data; performing dynamic time warping and feature extraction on the time series data, calculating a bilateral symmetry index and an instantaneous and accumulated time-varying difference degree, and fusing the bilateral symmetry index and the instantaneous and accumulated time-varying difference degree with absolute physiological parameters to form a comprehensive risk assessment vector; establishing a dynamic baseline based on the historical risk vector, calculating a current deviation index, and recognizing an abnormal state in combination with a double-side cooperation mode; and according to the deviation index and the duration, in combination with the abnormality type and the severity, generating a graded early warning signal containing a risk grade and a disposal suggestion through multi-stage judgment, thereby realizing early warning and risk management of thrombus.

The invention belongs to the technical field of intelligent medical treatment, and discloses an auxiliary assessment system for deep venous thrombosis occurrence risks of critical patients in plateau regions. Comprising a data acquisition module used for acquiring basic data, numerical feature data and image feature data of a patient; the index evaluation module is used for performing group division on the numerical feature data and evaluating real-time indexes; the index detection module is used for acquiring historical indexes and identifying abnormal indexes in the real-time indexes based on the historical indexes and the real-time indexes; the image analysis module is used for analyzing the image feature data, extracting blood vessel feature data and quantifying a form anomaly index; the risk assessment module is used for fusing the abnormal index and the form abnormal index, assessing a thrombus risk coefficient and obtaining a risk degree; the method can effectively improve the assessment accuracy of the occurrence risk of deep venous thrombosis, timely identify high-risk patients, and reduce the occurrence rate of deep venous thrombosis and related complications.

The invention discloses an intelligent wearable digital neuromuscular stimulator for preventing deep venous thrombosis. The intelligent wearable digital neuromuscular stimulator comprises an electric stimulator, a charging bin and an electrode plate, the charging bin can charge the electrical stimulator, record working data of the electrical stimulator and upload the data to the cloud platform; the electrode plate is provided with a flexible B ultrasonic electrode module; the blood flow velocity and the flow peak value can be recorded, and then whether thrombus is formed or not is detected. According to the neuromuscular stimulator, real-time intelligent monitoring and prevention can be achieved, whether thrombus is formed or not can be detected in time, stimulation data and detection data can be uploaded to a cloud platform, a patient is reminded to see a doctor in time for treatment, the neuromuscular stimulator is small in size and suitable for various crowds, and the user experience is improved.

A fixed vertical plate is fixedly connected to one end of the top of a base, guide grooves are symmetrically formed in the two sides of the fixed vertical plate, a base plate is movably installed at one end of the fixed vertical plate, and movable blocks are symmetrically and fixedly connected to one end of the base plate; hydraulic telescopic rods are symmetrically and fixedly mounted in the middle of the top end of the base, an extension plate is fixedly connected to one end of the base, and elastic buffer plates are fixedly mounted at the top end of the extension plate at equal intervals. Lying is not needed during lower limb deep vein thrombosis detection, operation is more convenient, the time needed for lying down and standing up is shortened, meanwhile, the height of the base plate can be adjusted, the height of the base plate is matched with the height and the leg length of a patient, the lower limbs of the patient can be smoothly placed on the pedal, and the patient is more convenient to use. And the medical staff can conveniently examine the patient.

The invention belongs to the technical field of intelligent medical treatment, and provides a stretch sock for preventing lower limb venous thrombosis, comprising: a wrapping body having a pressure layer located on the outer side, a contact layer located on the inner side, and a functional layer located between the pressure layer and the contact layer; the physiological index sensor is arranged on the functional layer and used for collecting physiological index data of the user; the stimulating electrode is arranged on the contact layer, is in contact with the skin of the user and is used for stimulating muscles of the user; the controller is connected with the physiological index sensor and the stimulating electrode and used for receiving the physiological index data and generating a control signal of the stimulating electrode based on the physiological index data and the user baseline data so as to control the stimulating electrode to execute the stimulating parameters corresponding to the control signal. According to the stretch sock for preventing the lower limb venous thrombosis, personalized stimulation can be carried out based on the personalized physiological indexes of the current wearing user, and the prevention effect of the lower limb venous thrombosis is improved.

The utility model discloses a bleeding expelling and stopping ring with a fixing support, and relates to the technical field of medical instruments. The hemostasis device comprises a hemostasis ring and a fixing support, one end of the fixing support is detachably and fixedly connected with the hemostasis ring, and the other end of the fixing support is detachably and fixedly connected with a diseased limb. The elastic contraction ring and the bleeding stopping ring are arranged and can be tightly attached to the diseased limb, the uniform and lasting bleeding stopping effect is achieved, complications caused by a conventional air pressure tourniquet are reduced, and the occurrence of lower limb deep vein thrombosis is reduced; the rod-rod fixing clamp is arranged, the angle and the position of the support can be adjusted according to the operation requirement and the change of the body position of the patient, and therefore the accurate control over the operation body position of the patient is achieved; the bleeding expelling and stopping ring and the fixing support are connected and combined for use, so that the risk that the operation operable area range is possibly reduced and the operation difficulty is increased when one end close to the operation part is fixed through an external support is avoided, and the operation success rate is increased.

The utility model provides an ankle pump movement device for preventing lower limb deep venous thrombosis, which relates to the technical field of medical training and comprises a base and a pedal, a rotating shaft for controlling the pedal to rotate is arranged outside the base, and the pedal is arranged outside a support frame. A fixed adjusting mechanism used for adjusting the axis position of the supporting frame is arranged outside the rotating shaft, and the fixed adjusting mechanism comprises fixed plates symmetrically arranged outside the rotating shaft; through the arrangement of the gravity block, the control push plate, the control spring and the toe plate, a user can normally step on the foot when stepping on the foot. When the user hooks the feet, the toe plate can assist in completing upward hooking of tiptoes at the maximum angle, tibia anterior muscles can contract and become short, and triceps calf muscles can relax and extend, muscle contraction and relaxation are alternately carried out, blood and lymph backflow can be squeezed like a pump, and meanwhile, when the muscles are relaxed, the user can feel comfortable when hooking the feet. And fresh blood can be supplemented, so that a better exercise effect is achieved.

The invention discloses a deep vein thrombosis risk early warning health information system based on dynamic negative pressure monitoring and AI, and relates to the technical field of intelligent medical health information. Comprising a dynamic negative pressure sensor module, a multi-modal data acquisition module, a waveform primitive analysis module, a hierarchical attention fusion module, a risk assessment classifier module and an early warning output module. The dynamic negative pressure sensor module is used for continuously collecting dynamic negative pressure signals of the lower limbs of the user. According to the dynamic negative pressure monitoring and AI deep vein thrombosis risk early warning health information system, the problem of multi-source heterogeneous physiological data fusion is solved; an original dynamic negative pressure signal is converted into a symbolized primitive sequence with clear physiological significance, so that the data quality is fundamentally improved; according to the method, adaptive fusion of multi-modal data and accurate focusing of key time slices are realized, the specificity and robustness of a risk assessment model are improved, and a false alarm phenomenon caused by physiological activity interference is reduced.

The invention relates to the technical field of intelligent diagnosis and treatment, and discloses an intelligent diagnosis and treatment system for dynamic risk early warning and intervention of orthopedic patients, and the system comprises a dynamic monitoring end, an intelligent grading end, a precise intervention end, a voice alarm module and a doctor's advice cooperation module. A multi-source sensor is used for continuously collecting vital signs of a patient and local microcirculation and behavior data of an affected limb in real time, and dynamic fusion analysis is carried out based on an orthopedic specialized risk model, so that early abnormal changes of deep venous thrombosis, stress injury and falling risks can be recognized in real time; the method overcomes the hysteresis quality of traditional manual intermittent evaluation and static scale, ensures the accuracy and timeliness of early warning of severe risks, and reduces clinical risks caused by untimely intervention.

The utility model discloses an intelligent ankle pump movement massage instrument which comprises a control instrument, two air pressure leg sleeves, a connecting part used for connecting the control instrument and the air pressure leg sleeves, a rotating motor arranged on the air pressure leg sleeves, a rotating frame connected with the output end of the rotating motor and a mounting frame arranged on the rotating frame. The device comprises a mounting frame, a driving part located on the mounting frame, a foot boot connected with the driving part, and a massager and a heater arranged on the foot boot, the device can massage the foot sole of a patient and heat the foot of the patient at the same time through the arranged massager, and during operation, in combination with foot sole massage, meridian conditioning and constant-temperature heating can be achieved, so that the patient feels comfortable; meanwhile, blood circulation is further promoted; meanwhile, limb injury caused by dysphoria of the patient can be prevented through the air bag arranged in the air pressure leg sleeve, the femoral vein blood flow peak velocity is increased through the lower limb muscle pump combined with the negative pressure effect of the thoracic cavity, the lower limb vein blood return volume is increased, and lower limb deep vein thrombosis is effectively prevented.

A postop shoe includes a body for receiving at least a part of a patient's foot, the body has a sole, a sensor placed within the body, a near infrared spectroscopy (“NIRS”) sensor and a central processor. The sensor configured to measure pressure applied on the sole. The NIRS sensor configured for detecting oxygen saturation in a desired tissue. The central processor configured for receiving signals from the sensor and the NIRS sensor, wherein the central processor is configured to send an alert signal when the sensor measures weight exceeding a predetermined weight or the NIRS sensor detects an indicator of an evolving deep vein thrombosis (“DVT”).

The invention relates to the field of deep venous thrombosis medical diagnosis, in particular to an early-stage deep venous thrombosis prediction model establishment strategy and prediction method and device. Screening out DVT-related features from the electronic medical record data of the fracture patient by adopting a filtering type, a wrapping type, an embedded type, a model method and a causal relationship feature selection method; putting the screened features as input ends into Logistic regression, random forest, Bagging and LightGBM machine learning models, evaluating the optimal strategy of each model for predicting the DVT onset risk of the fracture patient, and obtaining an early-stage deep venous thrombosis prediction model; and a DVT prediction visualization convenient interaction program is constructed to assist a clinician in making a medical decision. According to the method, the clinical electronic medical record data of the fracture patient is collected, the fracture patient DVT risk monitoring model is built by innovatively using a causal relationship feature selection method in combination with machine learning, and a new attempt is provided for improving the detection rate of DVT and reducing the death rate of the fracture patient.

The present invention discloses a deep vein thrombosis (“DVT”) device that is portable, tubeless, and battery-operated, which ensures that the patient will have maximum mobility during recovery. The DVT device provides a pneumatically controlled bladder portion, which is actuated by an electronically controlled air pump, where the pump / bladder combination is enclosed in a “pocket” of a wrap or cuff during use. All pump, battery, and control components are protectively housed in a plastic case that is permanently attached to the bladder portion. Once the pump / bladder combination is placed in the “pocket” the wrap or cuff will be sealed. The wraps or cuffs are single use, disposable garments designed to provide an absorbent barrier during use, where the bladder portion and air pump remain clean during use and can be reused by the patient or hospital staff. Tabs or extensions may be used to secure the pump / bladder combination after insertion into the “pocket” of the wrap or cuff.

The invention discloses a multifunctional position pad for preventing deep vein thrombosis of lower limbs, which comprises: a position pad main body, on which a plurality of air bags are arranged; an inflatable component, which is connected to the air bags through a trachea, and comprises an air compressor, a buffer air bag, a control component and a valve, wherein the air compressor is connected to the buffer air bag through a first pipeline, and the buffer air bag is connected to the valve through a second pipeline, and the valve and the control component are controlled to be connected; a magnetic therapy component, which is arranged on the position pad main body; at least one fixed component, which is arranged on the surface of the position pad main body; a baffle component, which comprises a baffle and a driving component, wherein the baffle is rotatably connected to one end of the position pad main body, and the driving component drives the baffle to rotate. The invention can prevent venous thrombosis of lower limbs, and can also massage the legs, promote blood circulation, and ensure the smoothness of blood flow. The baffle component can help patients do passive ankle pump exercises and maintain functional positions.

The systems and methods of the present invention can remove target material (including blood clots) from body parts (including but not limited to the circulatory system) for the treatment of pulmonary embolism (PE), deep vein thrombosis (DVT), cerebral vascular embolism, and other vascular obstructions. The capture system may include a tubular body and an end having an opening and a capture guide. In some embodiments, the body or funnel tip of the catheter is expandable.

The present invention provides D-dimer antibodies and their applications and D-dimer detection products, wherein the D-dimer antibodies are selected from protein a and / or protein b, and the amino acid sequences of the heavy chain complementary determining region and the light chain complementary determining region of the antibody are defined. The D-dimer antibodies have good specificity, high biological activity, strong stability, and high affinity with D-dimer, and can be used to prepare products for detecting D-dimer. The D-dimer detection test strips and detection kits provided by the present invention have the advantages of simple operation, rapid response, high sensitivity, strong specificity, suitability for rapid on-site detection, and economical and practical, and can be rapidly screened, and provide auxiliary diagnosis for diseases such as deep vein thrombosis, pulmonary embolism, and disseminated intravascular coagulation quickly, accurately, and safely, so that patients can be diagnosed and treated early.

Processing generated sensor data of a mobile deep vein thrombosis (DVT) device may include identifying use of the mobile DVT device corresponding to a user. Sensor data associated with the user's identified use of the mobile DVT device may be generated. At least some of the generated sensor data may comprise use data associated with a duration of use of the mobile DVT device by the user. A protocol associated with use of the mobile DVT device may be processed. The generated use data and the protocol associated with use of the mobile DVT device may be correlated. Based on correlating the generated use data and the protocol, an alert associated with the generated use data and the protocol may be generated.

Quinazoline dione compounds are provided for treating cardiac indications such as hypertrophic cardiomyopathy and diastolic dysfunction. Diseases treated by the methods described herein include, but are not limited to, cardiomyopathy, hypertrophic cardiomyopathy (HCM), abnormal heart rhythms, aortic disease, Marfan syndrome, coronary artery disease, heart attack, heart failure, rheumatic heart disease, peripheral vascular disease, stroke, deep vein thrombosis, and pulmonary embolism.

The present invention provides a nanoscale MOF with pH-responsive function for targeted dual-drug thrombolysis and a preparation method thereof. Hollow mineralized nanoscale calcium carbonate powder is mixed with γ-cyclodextrin and a potassium ion compound, ultrasonically dispersed, and then incubated to form a cyclodextrin MOF embedded with calcium carbonate. An RGD polypeptide is grafted onto the surface of the cyclodextrin MOF embedded with calcium carbonate to obtain MOF-RGD. The grafted MOF-RGD is impregnated into ethanol containing an anticoagulant drug, air-dried, and then mixed with a thrombolytic drug, so that the thrombolytic drug is loaded on the surface of the nanoscale MOF to obtain a pH-responsive targeted nanoscale MOF. The present invention forms a nanoscale MOF with a targeted function, which combines thrombolysis and anticoagulation, and realizes the treatment and prevention of deep vein thrombosis.

A vacuum aspiration system may be used to treat thromboembolic disease, such as deep vein thrombosis or pulmonary embolism. The system includes a housing, and a fluid flow path extending through the housing. An aspiration catheter is in fluid communication with the flow path, and a connector is configured to place a source of aspiration in communication with the flow path. A hemostasis valve is provided in the housing. The housing may be configured to receive and releasably engage a thrombus engagement tool.

A patient screening system for providing recommendations for screening of a hospitalized patient for risk of developing deep vein thrombosis (DVT) or pulmonary embolism (PE) based on their health records and retinal images, is described herein. The patient screening system may include an optical imaging device for capturing retinal images, and a DVT risk assessment system configured to generate the recommendation for further screening tests. The DVT risk assessment system may implement various AI / ML models trained on a training dataset of anonymized patient data. The patient screening system may also implement detectors for various ophthalmic features correlated with blood clot-related conditions of the patient. Any patient screening based on the recommendation may be followed up, and results of such screening used to improve performance of the patient screening system.

The invention relates to the technical field of medical health monitoring, and discloses a foldable leg circumference measurement system and method for deep venous thrombosis monitoring, and the system comprises a foldable measurement main body, a bony marker positioning assembly, a sensing measurement assembly, a control module and a communication module; the measuring main body realizes radian adjustment and storage through a damping hinge and an elastic buckle, and the positioning assembly is attached to the patella through an arc-shaped clamping groove and is matched with a high-precision calibration ruler to complete standard site positioning; the sensing assembly collects perimeter and tension data, the control module carries out calibration through a weighted average algorithm, compares an uninjured side reference value and judges whether the data exceed the limit or not, early warning is triggered if the data exceed the limit continuously for three times, and the data are synchronized to a medical care terminal and a patient terminal. The method comprises the steps of site calibration, tension calibration, data processing and early warning archiving. The problems that a traditional measuring tool is low in precision and lags in early warning are solved, multi-scene standardized monitoring is achieved, and support is provided for early warning of thrombus.

The invention discloses a construction method of a rat deep vein thrombosis model, and relates to the technical field of animal models, and the key points of the technical scheme are that the construction method comprises the following steps: step 1) experimental animal selection; step 2) setting in groups; 3) preparing experimental materials and equipment; step 4) preparation before an experiment; 5) anesthesia and surgical operation; and 6) taking down the vascular clamp and closing the abdomen for disinfection. The invention provides a stable and clinically related rat deep vein thrombosis model, the repeatability and reliability of experiments are improved through accurate surgical operation, the experimental process is simplified, the research efficiency is improved, and a powerful experimental tool is provided for research and treatment of deep vein thrombosis.

The invention relates to the technical field of air pressure therapeutic apparatuses, and discloses an air pressure therapeutic apparatus combining air pressure therapy with ankle joint movement therapy and a control method thereof.The air pressure therapeutic apparatus comprises a main machine and is characterized by further comprising a body part arranged on the main machine and used for conducting air pressure therapy on legs; the training part is arranged on the main machine and is used for performing exercise treatment on the ankle joints; the anti-falling part is arranged on the host and is used for fixing the body part; wherein the control body part controls the training part. By arranging the training part, the problems that most of traditional devices can only achieve single air pressure treatment through external extrusion of air bags, ankle joints are inconvenient to synchronously drive to conduct active and passive movement of dorsal flexion and plantar flexion, consequently, the blood circulation improvement effect depends on air pressure intensity, cooperative driving of joint movement to a muscle pump is lacked, and the rehabilitation effect is poor are solved. The increase amplitude of blood flow velocity is limited, and the deep vein thrombosis prevention efficiency is difficult to break through the bottleneck.

The utility model discloses a kind of rehabilitation nursing beds, it is related to rehabilitation medical equipment technical field, including bedstead, the continuous disc motor is installed in the side end of bedstead.The utility model is provided with bedstead, support sliding slot, side position support frame, bottom screw rod motor, upper screw shaft motor, driving frame, far infrared heat therapy lamp, control screen, air pump, A road massage air bag and B road massage air bag, by bottom screw rod motor driving side position support frame moves to the position that far infrared heat therapy lamp needs to irradiate in support sliding slot, and by control screen controls the work of upper screw shaft motor to adjust the working height of driving frame, then A road massage air bag and B road massage air bag can be driven by two air pumps respectively to simulate muscle contraction to user by periodic inflation and deflation, promote lower limb blood circulation, cooperate far infrared heat therapy lamp can be carried out heat therapy, effectively prevent deep vein thrombosis suitable for long-term bedridden patient or postoperative rehabilitation training, the effect of multifunctional integration of lifting device use is improved.

The invention relates to the technical field of physiotherapy instruments, in particular to a rehabilitation training device for lower limb venous thrombosis prevention and treatment. The device comprises an inflatable massage protective sleeve and a treading training assembly, the inflatable massage protective sleeve comprises a protective sleeve shell, a middle-layer inflatable sleeve and an inner-layer massage inflatable sleeve which are sequentially arranged in a stacked and sleeved mode from outside to inside, and the inflatable massage protective sleeve is of a double-sleeve inflatable structure of the middle-layer inflatable sleeve and the inner-layer massage inflatable sleeve; by means of the mode that the middle-layer inflation sleeve is inflated to enable the inner-layer massage inflation sleeve to be attached to the shanks of the patient firstly, and then the inner-layer massage inflation sleeve is inflated, it is guaranteed that under the condition that the shanks of the patient are thin, the inner-layer massage inflation sleeve can still keep the enough expansion degree, and therefore the massage strength is guaranteed; and the problem of insufficient massage force during re-inflation caused by excessive expansion of the inflation sleeve is avoided. Therefore, the problem that in the prior art, the strength of massaging the shanks of the patient is possibly low is solved, and the problem that the patient cannot be prompted according to the specified training strength during ankle joint treading training is also solved.