4 results about "ATRIAL RHYTHMS" patented technology

The present application relates to the technical field of three-dimensional modeling, in particular to a cardiovascular three-dimensional reconstruction system based on multi-modal image data fusion. The present application determines the composite matching cost between the corresponding two points based on the position difference between the three-dimensional prediction contour point and the two-dimensional observation edge point at each time, the spatial constraint of anatomical structure and the consistency of direction characteristics, and determines the best matching pair set between the three-dimensional prediction contour point and the two-dimensional observation edge point. Based on the composite matching cost of the matching point pair in the best matching pair set, the geometric error cost after removing the influence of the spatial constraint of anatomical structure and the spatial constraint of anatomical structure are removed, the projection deviation between the matching point pair is adjusted, the position of the three-dimensional prediction contour point of the three-dimensional reference model is updated, and the three-dimensional reconstruction model is obtained. The present application realizes accurate reconstruction of the cardiovascular model under the irregular heart rhythm of atrial fibrillation by using multi-dimensional constraint composite cost accurate matching and based on the double constraint update strategy of geometric error and anatomical resistance.

An intelligent blood pressure monitoring device and method for a patient with atrial fibrillation, and a processor. The device comprises a blood pressure measurement module, an electrocardiogram measurement module, and a processing module. The blood pressure measurement module is used for measuring arterial blood pressure data of a target subject. The electrocardiogram measurement module is used for acquiring electrocardiogram data of the target subject and generating electrocardiographic data. The processing module is used for performing time alignment of the electrocardiographic data and the arterial blood pressure data, determining R-R interval stability in the electrocardiogram data, and selecting arterial blood pressure data or calculating an average value of the arterial blood pressure data on the basis of the R-R interval stability, P wave variability, and / or atrial fibrillation status in the electrocardiogram data. The device and method can recognize a period of stable heart rhythm, ensuring the reliability and practicability of a measurement result. By dynamically adjusting the measurement frequency and duration, and selecting data that is less affected by atrial fibrillation, the number of unnecessary measurements is effectively reduced, and meanwhile, the accuracy of blood pressure data is improved.

This invention relates to an intelligent blood pressure monitoring device and method for elderly patients with atrial fibrillation. The device includes a blood pressure measurement module, an electrocardiogram (ECG) measurement module, and a processing module. The blood pressure measurement module measures the arterial blood pressure data of the target subject; the ECG measurement module collects the ECG data of the target subject and generates ECG data; the processing module aligns the ECG data with the arterial blood pressure data in time, and dynamically adjusts the measurement frequency and duration of the blood pressure measurement module based on changes in the ECG data, selecting arterial blood pressure data that meets the time interval requirements and is less affected by atrial fibrillation as the measurement data. By combining ECG data, this invention can identify the stable period of the heart rhythm, ensuring the reliability and practicality of the measurement results. By dynamically adjusting the measurement frequency and duration and selecting data less affected by atrial fibrillation, this invention effectively reduces unnecessary measurements and improves the accuracy of blood pressure data.

The invention discloses a dynamic planning method for an implantation path of a central venous catheter based on magnetic navigation, and relates to the technical field of intelligent medical treatment. According to the method, an integrated three-dimensional anatomical model is reconstructed by segmenting medical image data, risk level labeling and optimal region highlighting are combined, an anatomical structure and risk distribution are presented, a target region is delimited, a magnetic field generator is deployed, and a double-calibration reference point and an iterative correction conversion matrix are combined, so that precise space matching of a preoperative model and an intraoperative entity is realized; a magnetic positioning sensor is fused to calculate coordinates, a miniature attitude sensor collects angles, interference prevention and control and data complementary calibration are matched, a dynamic risk field is constructed with the tip of a guide wire as the center, a path is calculated in combination with a target end point, graded early warning is generated, path dynamic optimization and risk early warning are achieved, the risk of operation complications is reduced, and the reliability of the system is improved. The magnetic navigation data and the electrocardiosignal are associated to judge the position, the judgment precision of the optimal indwelling position of the catheter is improved, and the special requirements of patients with abnormal heart rhythm are met.