33 results about "Lower limb deep vein thrombosis" patented technology

The invention discloses a deep vein thrombosis thrombolysis curative effect prediction method and system, a storage medium and a terminal. The method comprises the steps of: obtaining MRI images of patients with deep vein thrombosis of lower extremities; training the MRI images based on a semantic segmentation network to obtain a deep learning semantic segmentation model; using the deep learning semantic segmentation model to extract high-dimensional semantic features of deep vein thrombosis of lower extremities, The clustering algorithm is used to filter the high-dimensional semantic features; according to the filtered semantic features, the thrombolytic efficacy prediction algorithm is used to predict the thrombolytic efficacy of deep vein thrombosis of lower extremities, and the prediction results of thrombolytic efficacy of deep vein thrombosis of lower extremities are obtained, and output the result. Based on the deep learning semantic segmentation network and magnetic resonance images, the present invention establishes a relationship model between semantic features and thrombolytic treatment effect of thrombus to effectively predict the thrombolytic efficacy of patient's thrombus, which reduces the burden on doctors and improves diagnosis. efficiency.

The invention provides a lower limb deep venous thrombus magnetic resonance imaging method and device. On the premise that no contrast media are used, injuries to a patient are avoided, and meanwhile the imaging effect is improved. The method includes the steps that blood flow signals of lower limb deep veins are suppressed, blood vessel wall and thrombus signals of the lower limb deep veins are retained, and preprocessed signals of the lower limb deep veins are obtained; the preprocessed signals of the lower limb deep veins are sampled through a variable-turning-angle spin echo sequence or a fast small-angle gradient echo sequence; according to sampled data, a lower limb deep venous thrombus magnetic resonance image is acquired. By means of the technical scheme, on one hand, blood vessel walls, blood flow and thrombi of the lower limb deep veins can be accurately differentiated, and whether thrombi exist in blood vessels or not can be visually displayed; on the other hand, the lower limb deep venous thrombus magnetic resonance image obtained through the method and device can display whether thrombi exist in the lower limb deep veins or not and the distribution positions of the thrombi, the thrombi can be preliminarily staged, and practical and effective information is provided for clinical treatment.

The invention discloses a bed tail type intelligent lower limb function training device. A support is formed by a base plate, a vertical baffle plate and a middle clapboard, wherein the vertical baffle plate is vertically fixed on an edge at one side of the base plate; two adjacent sides of the middle clapboard are vertically fixed to the base plate and the vertical baffle plate; a through foot bar walking slot is formed in a direction from the middle of the middle clapboard to the vertical baffle plate; a drive shaft is vertically arranged in a hollow cavity of the middle clapboard; a foot bar is vertically arranged on the drive shaft, is symmetrical along two sides of the drive shaft, and penetrates through the foot bar walking slot on the middle clapboard; an elastic mechanism is arranged in the hollow cavity of the middle clapboard. Through the device provided by the invention, the risks of lower limb deep vein thrombosis of patients can be reduced, the lower limb muscle force is improved, and the patients can prepare for early ambulation; the device can be reused, so that the unnecessary consumable cost is reduced.

The invention discloses an exercise instrument for preventing deep venous thrombosis of lower limbs. The exercise instrument for preventing deep venous thrombosis of lower limbs comprises a casing, the upper end of the casing is provided with two sliding grooves with corresponding positions, a measuring side wall of the casing is respectively provided with a first device chamber and a sliding plugchamber, the side wall of the casing is fixedly connected to a driving motor, one end of an output shaft of the driving motor located in the first device chamber is fixedly connected to a first bevelgear, the inner wall of the first device chamber is rotatably connected to a driving wheel, the side wall of the driving wheel is coaxially fixedly connected to a second bevel gear meshed with the first bevel gear, the upper end of the casing is provided with a first groove communicated with the first device chamber, and the inner walls of the two sliding grooves are rotatably connected to parallelly-arranged first reciprocating lead screws. The exercise instrument for preventing deep venous thrombosis of lower limbs can massage the foot sole and instep to achieve a function of stimulating limb nerves, an ankle joint is protected from stiffness deformation, the foot drop is effectively prevented, and the rehabilitation of a patient is promoted.