A61B5/02014

VASCULAR TREATMENT EVALUATION SYSTEM, AND METHOD THEREFOR
20170347966 · 2017-12-07 ·

Provided is a system for supporting the treatment of vascular diseases by performing a blood flow simulation based on a medical image, the system comprising: an input unit that reads the medical image, fluid properties and boundary conditions from a data storage unit; a blood flow analysis execution unit that obtains a pressure field and a flow velocity field based on the medical image read by the input unit; a blood flow information calculation unit that calculates, based on the pressure field and the flow velocity field, blood flow information about a specific blood vessel being treated; a vascular treatment risk assessment unit that calculates, based on the calculated blood flow information, the proportion of a blood flow volume flowing into an aneurysm as a risk factor associated with the vascular treatment of the blood vessel being treated; and display units that display the calculation results to a user.

Brain aneurysm tool with a wire deflection mechanism
11259834 · 2022-03-01 · ·

A medical device for treating an aneurysm in a blood vessel includes a hollow shaft for insertion into the blood vessel, an exit port at a distal end of the shaft, a deflection element, and a position sensor. The hollow shaft encompasses a wire-insertion channel for leading a wire to be inserted into the aneurysm. The exit port is configured for exiting the wire from the wire-insertion channel and into the aneurysm. The deflection element is located adjacent to the exit port and configured to deflect the wire from the wire-insertion channel to the exit port. The position sensor, which is coupled to the distal end of the shaft, is configured to produce signals indicative of a position and orientation of the exit port in the blood vessel.

Detection and monitoring of abdominal aortic aneurysm
09801558 · 2017-10-31 · ·

Ruptured Abdominal Aortic Aneurysms (AAA) cause a large number of deaths annually. Ruptures occur even in people who are already diagnosed with AAA and are being monitored. The reason is that the interval between tests is too long because of the need to visit a pathological facility with imaging equipment. It is preferable to estimate the progress of AAA frequently, once detected, in a non-invasive manner, preferably at the subject's home, without the need for the subject to visit a pathological facility. A device is disclosed for detecting a state of a vascular pathology of a subject, comprising a sensor signal unit (103) for providing a signal representative of a blood volume in a body part of a subject, a comparator (107) for comparing the sensor signal with a reference signal, and a user interface (109) for conveying a result based on the comparison to a user of the device.

Evaluating arterial pressure, vasomotor activity and their response to diagnostic tests
09801607 · 2017-10-31 ·

Method and system for evaluating arterial pressure waves, vascular properties, as well as for diagnostic, physiological and pharmacological testing using various combinations of the following data acquisition and processing steps (some of the steps are optional): 1. Perturbing arterial pressure from its steady state. 2. Measuring the dynamics of at least one parameter related to the passage of arterial pressure waves along blood vessels. 3. Characterizing the magnitude and functional relation of changes in parameters described above in relation to changes in blood pressure during its displacement from and/or return to the steady state. 4. Classifying (comparing) the individual functional relation described above with a databank of parameters/functional relations for different states of vasomotor activity.

Tracking cardiac forces and arterial blood pressure using accelerometers
11253159 · 2022-02-22 ·

Modular, miniaturized cardiovascular sensors, systems, methods, and wearable devices for the non-obtrusive evaluation, monitoring, and high-fidelity mapping of cardiac mechanical and electromechanical forces and central arterial blood pressure are presented herein. The sensor manufacturing process is also presented. Using accelerometers, the sensors register body-surface (preferably torso-surface) movements and vibrations generated by cardiac forces. The sensors may contain single-use or reusable components, which may be exchanged to fit different body sizes, shapes, and anatomical locations; they may be incorporated into clothing, bands, straps, and other wearable arrangements. The invention presents a practical, noninvasive solution for electromechanical mapping of the heart, which is useful for a wide range of healthcare applications, including the remote monitoring of heart failure status and the guidance of cardiac resynchronization therapy. Exercise and cardiovascular fitness tracking applications are also presented.

MEDICAL IMAGE VISUALIZATION APPARATUS AND METHOD FOR DIAGNOSIS OF AORTA

An apparatus includes a communication interface and at least one processor. The processor is configured to obtain a size of a lumen in each of a plurality of aortic zones and first information for each of the plurality of aortic zones based on segmentation results of an aorta and the plurality of aortic zones within the aorta; and visualize the size of the true lumen, the first information, and a ratio between the size of the true lumen and the first information in each of the plurality of aortic zones by using a visualization segment corresponding to each of the plurality of aortic zones.

Systems and methods for generating and displaying OCT blood flow speeds by merging mutiple integrated spatial samplings

A computer-implemented method of imaging an object, and an optical coherent tomography (OCT) imaging system implementing same. The method comprises acquiring a three-dimensional optical coherence tomography (OCT) data set representing an object, wherein the OCT data set includes at least a first and a second three-dimensional data subsets, each element of the OCT data set having a respective sampling period, wherein at least a first element of the first data subset represents a point in space that is not represented by any element of the second subset, and at least one element of the second subset has a sampling period different from the sampling period of the first element of the first subset; processing at least the first and the second data subsets according to at least one imaging modality, thereby generating at least a first and a second processed data subsets, each processed data subset representing the object; and generating a composite image representing the object based on at least the first and the second processed data subsets.

Devices, systems, and methods for real-time monitoring of fluid flow in an anuerysm

Embodiments of the present disclosure are configured to assess effectiveness of an endovascular aneurysm coiling procedure. A system is provided that can include a flow-sensing intravascular device with a flexible elongate member which is sized and shaped for insertion into a vasculature, and a flow sensing element secured to a distal portion of the flexible elongate member. A computer can be in communication with the flow-sensing intravascular device. With a coil is positioned within an aneurysm, the computer can detect a flow measurement of fluid entering the aneurysm based on data obtained by the flow sensing element positioned within the aneurysm, and can determine that the fluid flow measurement is at or below an acceptable level. If flow is at an unacceptable level, additional coils can be added to further restrict flow. Also, a second source of fluid into the aneurysm can be indicated by the flow measurements.

DEVICES, SYSTEMS AND METHODS FOR USING AND MONITORING MEDICAL DEVICES
20220047162 · 2022-02-17 ·

Medical devices are provided, comprising a medical device and a sensor.

MEDICAL APPARATUS

A medical apparatus includes a laser light source for blood vessel sensing configured to irradiate illumination light for detecting a blood vessel, a photodetector configured to detect return light of the illumination light, an optical-characteristic processing circuit configured to calculate, based on a detection result of the return light, at least one of information concerning scattering of blood cells in the blood vessel and information concerning absorption by blood, a blood-vessel-characteristic determination circuit configured to determine a characteristic of the blood vessel based on an optical characteristic calculation result, and a laser light source for guide configured to irradiate, based on the determined characteristic of the blood vessel, notification light on an irradiation near region including an irradiation region.