Abstract: A method includes implanting an implantable biosensor within a subject where the implantable biosensor has an array of light sources and an array of light detectors, activating the array of light sources to direct light signals at a targeted tissue site in the subject, capturing, with the light detectors, the light signals reflected off the targeted site, calculating a roundtrip propagation time for each of the light signals and comparing the roundtrip propagation time for each of the light signals against previous calculated respective roundtrip propagation times to determine an occurrence of a change in the targeted tissue site.
Type:
Grant
Filed:
June 20, 2019
Date of Patent:
November 21, 2023
Assignee:
International Business Machines Corporation
Inventors:
Steven J. Holmes, Devendra K. Sadana, Stephen W. Bedell
Abstract: Devices, systems, and methods of evaluating risk associated with a condition of the vessel and issuing an automatic recommendation based on co-registered physiological measurements are disclosed. The includes steps of obtaining image data for the vessel of the patient, obtaining physiological measurements for the vessel of the patient, co-registering the obtained physiological measurements with the obtained image data such that the physiological measurements are associated with corresponding portions of the vessel of the patient, analyzing the co-registered physiology measurements to identify a region of interest, and outputting, to a user interface, a suggested diagnostic procedure for the region of interest based on the analysis of the co-registered physiology measurements.
Abstract: An electronic device acquires pulse wave information indicating a pulse wave of a first portion of a body and pulse wave information indicating a pulse wave of a second portion of the body, based on video information of the body in each of a first video and a second video obtained by imaging the body. The device further acquires, based on a relationship between the pulse wave information of the first portion and the pulse wave information of the second portion acquired from the first video, and a relationship between the pulse wave information of the first portion and the pulse wave information of the second portion acquired from the second video, a measurement result indicating a degree of change in blood flow from when imaging the first video to when imaging the second video.
Abstract: A vascular occlusion treatment system includes an ultrasound imaging system having an imaging control circuit communicatively coupled to an ultrasound imaging probe and to a display screen, and an ultrasonic vibration system having an ultrasonic generator operatively coupled to a medical ultrasonic object, such as an ultrasonic catheter. The ultrasonic catheter has a corewire with a distal tip. The ultrasonic generator has a generator control circuit that alternatingly switches between an ultrasonic work frequency and a tracking frequency. The generator control circuit sends a notification to the imaging control circuit when the generator control circuit has switched from the ultrasonic work frequency to the tracking frequency. The imaging control circuit responds by initiating a search in an ultrasound imaging space to locate the distal tip that is vibrating at the tracking frequency, and indicating a location of the distal tip in the ultrasound image displayed on the display screen.
Abstract: The present disclosure describes an ultrasound imaging system configured to identify a target placement of an ultrasound probe for viewing a lung pleural line. In some examples, the system may include an ultrasound probe configured to receive ultrasound echoes from a subject to image a region of the subject and a data processor in communication with the ultrasound probe. The data processor may be configured to identify one or more candidate pleural lines and one or more A-lines corresponding to the candidate pleural lines, compute an A-line intensity of at least one of the A-lines, and apply the computed A-line intensity to indicate a target placement of the ultrasound probe for imaging the region for pleural line identification. The system may also include a user interface in communication with the data processor. The user interface may be configured to alert the user of the target placement of the ultrasound probe.
Type:
Grant
Filed:
December 8, 2017
Date of Patent:
October 24, 2023
Assignee:
KONINKLIJKE PHILIPS N.V.
Inventors:
Balasundar Iyyavu Raju, Shougang Wang, Raghavendra Srinivasa Naidu, Seungsoo Kim, McKee Dunn Poland, Jingping Xu
Abstract: According to one embodiment, an ultrasonic diagnostic apparatus includes processing circuitry. The processing circuitry is configured to acquire a current position information of an ultrasonic probe in three-dimensional space. The processing circuitry is further configured to switch from a body mark indicating one body part to a body mark indicating the other body part, when a body mark indicating one body part of a pair of left and right body parts is displayed, and when the ultrasonic probe is positioned at a position farther than a predetermined distance from a midpoint of the pair of left and right body parts toward the other body part.
Abstract: A controller changes a position and/or orientation of a treatment head by controlling an operation of a robot arm according to an external input. A probe driver changes a projection amount of a diagnostic probe with respect to an irradiator. Further, the controller performs synchronous control to synchronize the probe driver and the robot arm with each other so that the relative position between the irradiator and the distal end of the diagnostic probe changes while holding the distal end position of the diagnostic probe.
Abstract: The application of a step function increase in acoustic pressure during ultrasound imaging using gas vesicle contrast, along with capturing successive frames of ultrasound imaging and extracting time-series vectors for pixels of the frames, allows for improved imaging down to even the cell level. Template vectors can be used to implement signal separation of the time-series vectors to improve detection.
Type:
Grant
Filed:
January 7, 2020
Date of Patent:
October 17, 2023
Assignee:
CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventors:
Daniel P. Sawyer, Arash Farhadi, Avinoam D. Bar-Zion, Mikhail Shapiro
Abstract: A system for guiding a medical intervention is disclosed. The system employs a device guide that operates on the surface of a sphere that is centered on a selected target.
Type:
Grant
Filed:
July 23, 2019
Date of Patent:
October 17, 2023
Assignee:
Children's Hospital Medical Center
Inventors:
Charles Lucian Dumoulin, Neil David Johnson, Ronald Gene Pratt
Abstract: Disclosed in the present application is an ultrasound contrast enhanced imaging method, comprising: transmitting unfocused waves in a plurality of angles to a target region containing microbubbles; receiving echo signals of the unfocused waves; selecting echo signals corresponding to at least some of the plurality of angles from the echo signals; generating contrast enhanced image according to the selected echo signals, performing color-coding on the contrast enhanced image, and displaying same. Also disclosed in the present application is an ultrasound imaging system.
Type:
Grant
Filed:
May 14, 2020
Date of Patent:
October 17, 2023
Assignees:
Shenzhen Mindray Bio-Medical Electronics Co., Ltd., Beijing Shen Mindray Medical Electronics Technology Academy Co., Ltd.
Abstract: The ratio of arterial spin labeled (ASL) perfusion to diffusion weighted imaging (DWI) is generally homogeneous in the anoxic/hypoxic injury population. Conversely, the ratio is more heterogeneous in the non-anoxic/hypoxic population. By plotting these ratios in a graphical format in the form of an axial color map of the brain—referred to as a normalized diffusion to perfusion (NDP) ratio colormap—it may be determined whether a patient has suffered from an anoxic/hypoxic injury. Thus, the anoxic and non-anoxic injury patients will have, respectively, homogenous and heterogeneous color maps. Anoxic brain injury patients have a global homogeneously positive relationship between qualitative ASL perfusion and diffusion weighted signal such that areas of restricted diffusion show significantly increased ASL perfusion signal, which may be attributable to BBB integrity.
Abstract: A biophotonic medical device for detection of abnormalities in human tissue. A method for noninvasive detection of a failed breast implant. A method for medical diagnosis of abnormalities in human tissue by adjusting the positioning of a light source and an adjacent light detector on a single surface of a target region.
Abstract: Systems and methods for performing ultrasound imaging. Ultrasound information of a subject region in response to ultrasound pulses transmitted toward the subject region can be gathered. The ultrasound information can include reflectivity information and complementary information to the reflectivity information of the subject region in response to the ultrasound pulses. One or more ultrasound images of at least a portion of the subject region can be formed from the reflectivity information. Further, the one or more ultrasound images can be modified based on the complementary information to the reflectivity information to generate one or more enhanced ultrasound images from the one or more ultrasound images.
Abstract: An ultrasound diagnostic apparatus according to an embodiment includes processing circuitry configured to execute transmit aperture synthesis to conduct coherent summation on multiple received signals that are at different transmit apertures and in an identical scan line, evaluate a degree of consistency between phases of the received signals to calculate an evaluation value at each observation point, and correct a received signal having undergone the transmit aperture synthesis based on the evaluation value.
Abstract: A method for measuring parameters in an ultrasonic image, includes: obtaining a pelvic ultrasound image, wherein the pelvic ultrasound image is acquired by receiving ultrasound echoes from a pelvic floor tissue with an ultrasound probe and contains an area representing the pelvic floor tissue; displaying the pelvic ultrasound image; determining a position of an inferoposterior margin of symphysis pubis in the pelvic ultrasound image; determining a central axis of symphysis pubis in the pelvic ultrasound image; determining an axis that passes through the determined position of the inferoposterior margin of symphysis pubis and is at an angle of 135 degree with respect to the determined central axis of symphysis pubis; determining a position of a bladder neck in the pelvic ultrasound image; and calculating a distance from the determined position of the bladder neck to the determined axis to obtain a value of a bladder neck-symphyseal distance.
Abstract: A method for measuring parameters in an ultrasonic image, includes: obtaining a pelvic ultrasound image, wherein the pelvic ultrasound image is acquired by receiving ultrasound echoes from a pelvic floor tissue with an ultrasound probe and contains an area representing the pelvic floor tissue; displaying the pelvic ultrasound image; determining a position of an inferoposterior margin of symphysis pubis in the pelvic ultrasound image; determining a horizontal axis according to the determined position of the inferoposterior margin of symphysis pubis; determining a position of a bladder neck in the pelvic ultrasound image; and calculating a distance from the determined position of the bladder neck to the determined horizontal axis to obtain a value of a bladder neck-symphyseal distance.
Abstract: Driving an emitter to emit pulses of electromagnetic radiation according to a jitter specification in a fluorescence imaging system is described. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a driver for driving emissions by the emitter according to a jitter specification. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 770 nm to about 795 nm and/or from about 795 nm to about 815 nm.
Abstract: A catheter-based ultrasound imaging system configured to provide a full circumferential 360-degree view around an intra-vascular/intra-cardiac imaging-catheter-head by generating a three-dimensional view of the tissue surrounding the imaging-head over time. The ultrasound imaging system can also provide tissue-state mapping capability. The evaluation of the vasculature and tissue characteristics include path and depth of lesions during cardiac-interventions such as ablation. The ultrasound imaging system comprises a catheter with a static or rotating sensor array tip supporting continuous circumferential rotation around its axis, connected to an ultrasound module and respective processing machinery allowing ultrafast imaging and a rotary motor that translates radial movements around a longitudinal catheter axis through a rotary torque transmitting part to rotate the sensor array-tip.
Type:
Grant
Filed:
September 25, 2020
Date of Patent:
August 22, 2023
Assignee:
THE PROVOST, FELLOWS, FOUNDATION SCHOLARS, AND THE OTHER MEMBERS OF BOARD, OF THE COLLEGE OF THE HOLY AND UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN
Inventors:
Christoph Hennersperger, Andrew Bourke, Fionn Lahart
Abstract: An ultrasound imaging system including an image processor configured to receive input data for capturing ultrasound images of a region of interest. The ultrasound images are taken along a first plane; and the input data further includes an indication that a needle will be inserted into the region of interest. The system can capture a plurality of ultrasound images of the region of interest along the first plane. The system can determine one or more high-confidence areas of the region of interest where the needle will intersect the first plane. Each high-confidence area is based on a probability that the needle will intersect the first plane at any portion of the high-confidence area; and display one or more on-screen markers corresponding to the one or more high-confidence areas in conjunction with the plurality of ultrasound images on the display.
Type:
Grant
Filed:
June 13, 2019
Date of Patent:
August 22, 2023
Assignee:
FUJIFILM SonoSite, Inc.
Inventors:
Wendy Swan, Keith Williams, Andrew Lundberg
Abstract: A method of non-invasively detecting and purging bacterial cells using a modified photoacoustic in vivo flow cytometer device is described herein. In particular, a method of detecting bacterial cells by analyzing photoacoustic pulses emitted in response to laser pulses from a pulsed laser source and/or selectively destroying the detected bacterial cells using a non-linear photothermal response induced by a high-energy laser pulse is described herein.
Type:
Grant
Filed:
February 10, 2022
Date of Patent:
August 15, 2023
Assignee:
BioVentures, LLC
Inventors:
Mark S. Smeltzer, Vladimir Zharov, Ekaterina Galanzha