6 results about "Vascular anatomy" patented technology

This invention discloses an independent drive and collaborative control method for a double-layer medical catheter, comprising the following steps: drive system configuration; sensing data acquisition; collaborative control model construction; drive command generation; drive execution and dynamic adjustment; and safety protection. This invention achieves high-precision independent drive of the two layers of catheters by configuring independent drive units and multi-dimensional sensing modules for the double-layer catheter. Combined with Kalman filtering and PID control algorithms, the positioning error of the inner catheter is controlled within 0.1mm, and the posture adjustment accuracy of the outer catheter is improved by 40%, significantly outperforming existing technologies. Through variable-parameter PID control and operation intention prediction adjustment, the drive response time is shortened to within 50ms, eliminating the lag defects of traditional control and achieving instant matching between the doctor's operation intention and catheter movement, improving the smoothness of surgical operations. The dynamic collaborative control model built based on reinforcement learning can adaptively adjust the collaborative relationship according to vascular anatomy, lesion location, and real-time load data.

A vascular probe insertion assembly may include a slotted cannula having a sharp tip configured for insertion into a patient's vascular anatomical structure, and a side wall extending proximal to the sharp tip, the side wall defining the slot. A vascular probe insertion assembly may also include a digital probe comprising a divisible sheath molded to surround at least a portion of the side wall, a sensor tip configured to generate sensor data indicating the movement of the vascular anatomical structure, and a shaft extending proximal to the sensor tip. A vascular probe insertion assembly may also include a data hub operably coupled to the digital probe. The data hub may be configured to receive sensor data and transmit the sensor data to a monitoring system.

COMPUTER-IMPLEMENTED METHOD FOR ESTIMATING THE FRACTION OF CORONARY RESERVE FLOW, SYSTEM Method for estimating the fraction of coronary reserve flow (FFR) of a vessel comprising: Acquisition (ACQ1) of a first image from an imaging system; Extraction (EXT1) of a first set of data (ENS1) defining anatomical descriptors of a first vessel; Acquisition (ACQ2) of a second set of data (ENS2) comprising at least the heart rate, systolic pressure and myocardial mass;Generation (GEN1) of an output (S1) defining a prediction of a quantity of coronary flow reserve fraction (FFR) by means of the execution of a first machine learning model (MLA1) to produce an output (S1), said first machine learning model (MLA1) implementing a parameterizable loss function including at least one first factor modeling at least one parameterized physical constraint optimized during the training of said model (MLA1), said parameterized physical constraint resulting in particular from a numerical model of hemodynamic equations (MOD1). Figure for the abstract: Fig.5;

This application discloses a covered stent comprising multiple first annular structures and multiple second annular structures distributed axially. The surface of each first annular structure is covered and connected to form a covered segment, exhibiting good flexibility and adaptability to complex vascular anatomy. The axial ends of the second annular structures are provided with winding rings, and adjacent second annular structures are interlocked via these winding rings to form a distal stent segment. This structure effectively resists axial shortening and provides stable distal anchoring. The first annular structure at the end of the covered segment and the second annular structure at the beginning of the distal stent segment are also interlocked via winding rings, achieving a reliable connection between the two segments. A third annular structure may also be provided in the distal stent segment to enhance connection stability. Through a zoned design, this application ensures overall stent flexibility and adherence to the vessel wall while extending the distal anchoring area and maintaining unobstructed branch blood flow, significantly improving the clinical efficacy of endovascular repair of branch vessels.

Embodiments include a method for processing images to determine cardiovascular information. The method may include receiving medical imaging data of a patient and segmenting a plurality of computational model candidates for an anatomical model of a vessel including a stenosis region. Segmenting may include generating the plurality of computational model candidates, determining one or more candidate collocation points, assigning a refinement criterion to each collocation point, freezing each collocation point based on whether a termination criterion is met, and repeating until all collocation points are frozen. The method may further include computing one or more pieces of cardiovascular information for the stenosis region in each computational model candidate, determining whether a variation among values meets a threshold associated with a clinical decision regarding the stenosis region, and outputting images, indicators, reports, or simulations indicating information relating to the cardiovascular information.

This application relates to a delivery assembly and delivery system. The inner catheter is provided with a connecting structure, which includes at least two connecting parts. An outer catheter is movably sleeved outside the inner catheter. A stent-accommodating space is formed between the inner wall of the outer catheter and the outer wall of the inner catheter to accommodate the target stent. The stent-accommodating space is used to accommodate the target stent. A binding structure includes at least two binding threads for binding the target stent. Each binding thread is detachably connected to a connecting part of the connecting structure. Considering the differences in vascular anatomy among individuals, and because the proximal insertion window of the main stent of the target stent is adjustable, and the position of the branch stent relative to the branch vessel is adjustable, the probability of interference between the branch device and the main stent during delivery of branch devices can be effectively reduced, avoiding risks such as deformation, displacement, or kinking of the main stent.