227results about "Eye inspection" patented technology

The invention relates to the technical field of medical imaging, in particular to a biological tissue viscoelasticity measuring system and method.The system comprises an exciting unit, a measuring unit and a processing unit, the exciting unit excites biological tissue elastic vibration to repeatedly induce elastic waves through target radiation force; the imaging unit is used for performing optical coherence tomography scanning on elastic waves of the biological tissues and acquiring tissue vibration space distribution data of the biological tissues at different moments through scanning; and the analysis unit is used for reconstructing an elastic wave propagation process according to the tissue vibration space distribution data at different time, analyzing a phase velocity dispersion parameter of the elastic wave based on the elastic wave propagation process, and calculating the viscoelasticity of the biological tissue according to the phase velocity dispersion parameter. Therefore, the problem that related technologies can only be used for evaluating the retina elasticity and cannot measure the visco-elasticity of the retina is solved.

An ultrasonic transducer may be arranged within an alignment housing that can be secured to a surface of a patient. The alignment housing may include one or more ports that allow an acoustic coupling medium to be injected into a space between the surface the device is secured to and the transducer array.

The invention discloses an ultrasonic image evaluation processing method and device for meibomian gland dysfunction, and relates to the technical field of data processing. A meibomian gland dysfunction disease classification model is constructed based on a lightweight first-order index integral method decoder module and a second-order explicit Adams method decoder module; and the identification capability of the meibomian gland classification model on a high-noise region and a small target region in the ultrasonic image is improved, so that the meibomian gland in the ultrasonic image can be subjected to high-precision classification evaluation processing by the meibomian gland dysfunction disease classification model. Due to the adoption of the lightweight decoder module, the model parameters of the meibomian gland dysfunction classification model are reduced, and the scale is lighter, so that the occupation of computing resources during the operation of the meibomian gland dysfunction classification model is reduced. The encoder-decoder model is trained after the unlabeled data set is pre-trained based on the fine tuning data set, so that self-supervised training of the meibomian gland dysfunction disease classification model is realized, and the training cost and time are reduced.

The invention belongs to the technical field of brain function monitoring, and discloses a three-in-one non-invasive brain function monitoring system and method, a medium, equipment and application, and the monitoring method comprises the following steps: monitoring brain oxygen saturation of a critical patient; carrying out transcranial Doppler ultrasonic measurement on intracranial blood vessel blood flow velocity and ultrasonic measurement on the inner diameter of the optic nerve sheath; monitoring a quantitative electroencephalogram of the patient; various brain function monitoring series indexes and continuous changes of the indexes along with disease evolution are obtained, the pathogenic mechanism and pathogenesis of the indexes are found in time, and primary diseases and related complications of the primary diseases are treated. According to the invention, the brain oxygen saturation can avoid too low brain oxygen or low brain oxygen for a long time and too high brain oxygen due to oxygen utilization disorder; cerebral blood flow can be monitored through a transcranial Doppler (TCD) technology to find an optimal craniocerebral perfusion pressure (CPP), and a cerebral blood flow self-adjusting function is enabled to be in an optimal state; the electroencephalogram can avoid early warning of over-sedation or abnormal discharge and the like. Through organic combination of the three, noninvasive, real-time and dynamic monitoring of critical patients is realized.

The invention discloses an eyeball A-ultrasonic biological measurement method and system under the assistance of a B-ultrasonic image, and relates to the field of ophthalmology department image processing.The method comprises the steps that standard scanning is conducted on an eyeball through the B-ultrasonic scanning technology, and a standard eyeball section image is obtained; constructing an automatic judgment model to mark the standard eyeball section image to obtain three surface distances; performing distance parameter measurement on the standard eyeball section image based on the three surface distances to obtain a first measurement result; performing standard scanning on the eyeball by adopting an A-ultrasonic scanning technology to obtain a standard A-ultrasonic scanning waveform image; marking the standard A ultrasonic scanning waveform image based on the first measurement result to obtain four surface waves; based on the four surface waves, a second measurement result is obtained, and A-ultrasonic waveform biological parameter measurement is completed. According to the method, the existing A-ultrasonic technology is easy to inaccurately identify eyeball waveforms in part of cases, and the accuracy and efficiency of A-ultrasonic waveform identification can be effectively improved.

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and / or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

Some aspects of the described technology may include a method, including inducing a wave field in a biological sample, the wave field comprising waves having a wave frequency, scanning the sample at a scanning velocity to perform a plurality of spatial measurements of the sample, determining spatial data from the plurality of spatial measurements, amplitude demodulating the spatial data based on the wave frequency and the scanning velocity, and generating displacement data for the biological sample based on the amplitude demodulated spatial data.

The invention discloses a corneal defect animal model building method and system, and the method comprises the steps: carrying out the preliminary screening of experimental rabbits through a slit lamp, eliminating visible eye diseases or defects, carrying out the ophthalmology ultrasonic imaging examination, further recognizing and screening the hidden eye abnormality, and obtaining the experimental rabbits with normal eye conditions; obtaining thickness and hierarchical structure parameters of the rabbit cornea and the human cornea based on the difference of the rabbit cornea and the human eyeball in anatomical structures, determining the difference degree of the rabbit cornea and the human cornea through comparative analysis, and adjusting preparation parameters of a cornea defect model according to the difference degree; the corneal defect eyeball model is constructed by adopting a standardized operation process and parameter setting and controlling the size, depth and position of the corneal defect by virtue of a microscope, so that a repeatable corneal defect animal model with a uniform structure is obtained. According to the invention, the reliability of extrapolation to clinic of animal experiment results is effectively improved, and an important basis is provided for development and application of cornea defect repair materials.

The invention relates to the technical field of medical detection equipment, in particular to a system and method for measuring the length of an ocular axis, the system comprises a probe main body structure, an ultrasonic signal receiving and transmitting module, an electromagnetic driving module, a sliding rail structure and a controller, and the probe main body structure is formed by combining a transducer and a magnetic column; the probe main body structure is arranged in the slide rail structure in a sliding manner; the electromagnetic driving module is arranged on the sliding rail structure and is matched with the magnetic column; the ultrasonic signal transceiving module is in communication connection with the transducer; according to the invention, through modular design and an innovative ejection probe structure, in combination with high-precision ultrasonic signal processing, rapid and accurate measurement of the length of the ocular axis is realized.

Disclosed is an apparatus for measuring property of an eye. The apparatus has an elongated magnetic probe having a probe head, wherein the probe head has an ultrasonic sensor, a driver coil arranged partially to surround the elongated magnetic probe; and a controller configured to, when in use, selectively energize the driver coil to create a magnetic force to initiate movement of the elongated magnetic probe to contact the probe head with a surface of the eye The ultrasonic sensor in the probe head is configured to send an ultrasonic pulse upon contacting the surface of the eye; measure, using the ultrasonic sensor, time taken to receive at least one reflection of plurality of reflections of the ultrasonic pulse, and calculate the property of the eye using value of the time taken to receive at least one reflection of the ultrasonic pulse.

An apparatus for monitoring Intracranial Pressure (ICP) includes a non-invasive, flexible, wearable device (30), (60) with micro ultrasonic transducer arrays (32) fixed thereon. The wearable device (30), (60) is attached to the closed eyelid (21) of a conscious or unconscious patient with an adhesive (48). Using ultrasound sonography, the ultrasonic transducer arrays (32) on the wearable device (30), (60) image the optic nerve (26) behind the eyeball (20) to measure the Optical Nerve Sheath Diameter (ONSD). The ONSD provides an indication of the ICP in real time.

The present disclosure relates to a multilayered gel pad comprising a first layer having a first surface that is non-adherent to patient tissue; and a second layer having a second surface that is adapted to be adherent to a target surface; wherein the first and second surface are on opposite outer sides of the gel pad and wherein the first layer is self-healing to the second layer.

An ophthalmic system for visualization of interactions between ocular matter and a probe tip of a probe within or in contact with an ocular space of an eye includes: a visualization tool having a field of view that includes at least a portion of the ocular space of the eye where the probe tip interfaces with the ocular matter; and a stroboscopic illumination source configured to stroboscopically illuminate at least the portion of the field of view at an illumination frequency. A method of operating a stroboscopic illumination source during an ophthalmic surgical procedure includes: identifying an illumination source type of the stroboscopic illumination source; identifying a probe type; identifying a first procedure trigger; and operating the stroboscopic illumination source based on the probe type, the illumination source type, and the first procedure trigger.

The invention relates to an eye biomechanical characteristic evaluation method based on a dynamic Scheimpflug imaging technology. The method comprises the following steps: capturing a dynamic deformation video of a cornea through a Scheimpflug camera; performing eye biomechanical characteristic evaluation on the dynamic deformation video through the evaluation model; wherein a training sample of the training evaluation model comprises sample cornea data; the sample cornea data comprises sample video data and sample measurement data which are simultaneously measured in the process of pressing the cornea of the user; sample video data are captured through a high-speed Scheimpflug camera, and sample measurement data are obtained through a cornea ultrasonic biomechanical system. The evaluation model adopted in the method is obtained through training based on sample video data captured by a Scheimpflug camera and sample measurement data obtained through a cornea ultrasonic biomechanical system, and the eye biomechanical characteristics can be evaluated more accurately and reliably.

The invention discloses an ultrasonic biological microscope detection device for the ophthalmology department and a using method thereof, and relates to the technical field of medical instruments. The ultrasonic biological microscope detection device comprises a main machine, a supporting frame, an optical rotating table and a probe, the supporting frame comprises a cantilever, a base and a supporting seat, the supporting frame is installed on a detection table through the base, and the optical rotating table is installed on the supporting seat; the probe is connected with the host through a data line, is connected with a round hole in the center of the optical rotating table, extends to the position below the optical rotating table and can synchronously rotate along with the optical rotating table to collect images, and therefore real-time collection of dynamic images is achieved. The real form of ciliary sulcus can be accurately reflected, and an operator can visually observe the overall characteristics of the ciliary cyst and accurately determine the position of the ciliary cyst. According to the use method, the rotation angular velocity of the probe is kept constant by setting the pulse number and the rotation speed of each rotation of the motion controller, so that the specific position of a certain image can be positioned.

There is provided a system and a method of non-contact measurement of one or more mechanical properties of a material, the system comprising an ultrasonic module comprising an ultrasonic applicator configured to apply ultrasonic pressure on a target region of the material; a detection module comprising an electromagnetic wave emitter and an electromagnetic wave detector, said electromagnetic wave emitter being configured to emit an incident beam of electromagnetic waves towards the target region of the material, and said electromagnetic wave detector being configured to detect an emergent beam of electromagnetic waves reflected from the target region and / or transmitted through the target region; and a processing module configured to determine one or more measures corresponding to the one or more mechanical properties of the material, based on changes in the emergent beam of electromagnetic waves.

Systems, methods and devices are provided for treating vitreous disorders using focused ultrasound. An ultrasound device, configured for both ultrasound imaging of the eye and the delivery of focused ultrasound energy into the eye, is employed to obtain ultrasound imaging data characterizing at least the vitreous. This image data is autonomously processed, via a deep learning algorithm, to perform object detection and / or segmentation, for the identification of an abnormal region associated with opacity. The therapeutic ultrasound transducer is controlled to deliver therapeutic ultrasound energy to the abnormal vitreous regions to generate cavitation sufficient for disruption of the opacities. The imaging ultrasound transducer and the therapeutic ultrasound transducer can be moved in unison to facilitate coordinated imaging, deep-learning-based vitreous abnormality detection, and targeted ultrasound therapy.

The present invention discloses a method and device for imaging and processing meibomian glands, the method comprising: first transmitting a first ultrasonic detection signal to the eyelid region, then receiving a first ultrasonic echo detection signal reflected from the eyelid region; preprocessing the first ultrasonic echo detection signal to obtain a first meibomian gland ultrasonic image and first meibomian gland three-dimensional coordinate data; preprocessing the first meibomian gland ultrasonic image to obtain a first image recognition result; based on the first image recognition result and the first meibomian gland three-dimensional coordinate data, transmitting and processing ultrasonic energy to the target meibomian gland. The present invention can use ultrasonic waves to complete the imaging detection and processing of meibomian glands. The imaging detection does not require medical staff to turn over the patient's eyelids, and the practical operability is strong; ultrasonic waves can accurately process the meibomian glands and reduce ultrasonic exposure of surrounding tissues.

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and / or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

Systems, devices and methods are provided that provide assistance in selecting appropriate interventions for treatment of disease and injury to the eye. Systems of the inventive concept provide cloud-based processing and storage of clinical and patient-specific data, which can provide treatment recommendations and projected outcomes to a practitioner using a local device. Systems, devices, and methods can generate interactive physiomechanical models of the eye of a specified individual, which are derived measurements of mechanical properties of structures of the eye. The physiomechanical model is interactive, and can be used to emulate the effects of one or more medical interventions in the eye in order to implement an optimized treatment plan for the individual.

The invention discloses a three-dimensional ultrasonic biological microscope automatic scanning device and an image processing system thereof, and relates to the technical field of ophthalmology imaging, the device comprises a base, a first axial motion module, a second axial motion module, a probe assembly and a motion controller; the base is fixedly connected with the first axial movement module; the other side of the first axial movement module is connected with the second axial movement module; the length direction of the first axial movement module is perpendicular to the length direction of the second axial movement module. The probe assembly is fixedly connected to the side, away from the first axial movement module, of the second axial movement module. The motion controller is installed on the base and electrically connected with the first axial motion module and the second axial motion module. The technical problems that an existing ultrasonic biological microscope scanning device is complex in structure, large in control difficulty and difficult in uniform imaging are solved. The scanning device is easy to assemble, high in maintainability, convenient to operate and more comprehensive, balanced and flexible in scanning.

The invention provides an optic nerve regulation and control system based on an ultrasonic technology, a first ultrasonic module is deployed on the outer side of a target human eyelid and is provided with an Archimedes spiral type first ultrasonic array facing the human eye, and the first ultrasonic array is configured to generate a gathered ultrasonic beam which acts on a human eye retina ganglion cell area in a targeted manner; the positioning module is deployed on the outer side of a target human eyelid and is configured to measure three-dimensional geometric data when a human eyeball horizontally faces the front and measure the depth distance of a human eye retina ganglion cell area in the human eye; the optic nerve response prediction module is pre-trained with an optic nerve response prediction model facing a target human body, and the optic nerve response prediction model is configured to adjust sound intensity output of the first ultrasonic array based on stimulation feedback prediction of human eye retina ganglion cells. According to the invention, the optic nerve regulation and control system satisfies non-intrusive, high-precision and self-adaptive requirements, and has optic nerve regulation and control and repair functions.

The present disclosure addresses the aforementioned drawbacks by providing systems and methods for securing electronic devices directly on-person in a way that facilitates extended wearing, while properly positioning the electronic device(s) for effective, extended, data gathering. In particular, an elastomer membrane may be utilized and coupled to the electronic device. An electronically-communicable or transmissible material may be arranged within the elastomer membrane. A bioadhesive layer may be coupled to the elastomer membrane on a side opposite to the electronic device and configured to couple the elastomer membrane to the subject.

To provide an ophthalmic ultrasound diagnostic device with excellent operability for measuring the eye under examination. [Solution] The ophthalmic ultrasound diagnostic device comprises a probe and a measuring instrument. The probe is configured to transmit ultrasound to the eye under examination and to receive the reflected ultrasound waves from the eye under examination. The measuring instrument is configured to output the length of a predetermined part in the eye under examination as a measured value when the received signal from the probe satisfies a plurality of predetermined conditions. The measuring instrument is configured to control the display device so that it displays the waveform of the received signal and an indicator image indicating the satisfaction level of the plurality of conditions, and switches the display mode of the indicator image according to the number of conditions that are satisfied among the plurality of conditions.

Provided is an ultrasound imaging apparatus and method of controlling the ultrasound imaging apparatus. The ultrasound imaging apparatus includes an ultrasound transceiver module, a display, an input interface, and at least one processor, wherein the at least one processor is configured to control the ultrasound transceiver module to transmit an ultrasound signal to a fetus and receive an ultrasound echo signal reflecting from the fetus, obtain ultrasound volume data of a face of the fetus based on the ultrasound echo signal, the ultrasound volume data including a lossy volume area where the ultrasound echo signal has a value equal to or less than a threshold value due to a strong reflector, display a two dimensional (2D) rendered image of the face of the fetus based on the ultrasound volume data and an ultrasound cross-sectional image of the face of the fetus through the display, the 2D rendered image including a lossy area not represented of the face of the fetus due to the lossy volume area, indicate an area to be restored among the lossy area on the 2D rendered image or the cross-sectional image of the ultrasound volume data, and restore the indicated area to be restored based on a user input to restore the 2D rendered image or the ultrasound cross-sectional image of the ultrasound volume data being received through the input interface. The ultrasound imaging apparatus may display a location of a landmark of a face on a 2D rendered image of the face of a fetus, and clearly enhance the shape of the landmark at the location of the landmark.

The invention discloses an ultrasonic probe, an ultrasonic system and a method thereof. For example, an ultrasound system may include a console and an ultrasound probe. A display of the console may be configured to display the ultrasound image and one or more stationary or moving images of the surgical region. The ultrasound probe may include a camera integrated into the ultrasound probe for recording one or more stationary or moving images of a surgical region, with a depth of field including a distal end of the probe and a field of view including a spatial region surrounding the probe. Through one or more stationary or moving images displayed with ultrasound images, a clinician does not have to frequently switch his or her spatial attention between spatial regions such as a surgical region and a display as existing ultrasound systems, thereby maintaining spatial attention in one or more spatial regions.

To provide an ultrasound transducer and a method.SOLUTION: An ultrasound transducer may include: a plurality of capacitive ultrasound transducer elements; and a base having a maximum dimension sized and shaped to be disposed within an external ear canal, the plurality of capacitive ultrasound transducers being mounted on the base. Each capacitive ultrasound transducer element and the ultrasound transducer are specifically constructed to achieve select desired performance characteristics. The ultrasound transducer may have an angular beam spread through a gaseous medium of greater than 15 degrees and an attenuation loss through the gaseous medium of greater than 10 dB measured at a distance 12.5 mm to 25 mm along a primary transmission axis of the ultrasound transducer. The ultrasound transducer may be particularly useful for characterizing fluid behind an ear drum to diagnose otitis media.SELECTED DRAWING: Figure 6A

The invention relates to a computer implemented method for determining an access site (1) for an intravascular access for a surgical intervention, preferably executed on at least one control unit (2), the method comprising the steps: receiving two- or three-dimensional image data (3), positioning an imaging probe (5) by actuation of a positioning module (6) in a first orientation (51) based on the image data (3), moving the imaging probe (5) by actuation of the positioning module (6) based on the image data (3) in the first orientation (51) along the longitudinal axis (L) of the elongated bodily structure (4), analysing the received two- or three-dimensional image data in view of the presence of a landmark (7) of the elongated bodily structure (4), if no landmark (7) is detected repeating the prior steps, if a landmark (7) is detected based on the received image data (3) positioning the imaging probe (5) by actuation of the positioning module (6) based on the image data (3) from the first orientation (51) to a second orientation (52), and determining the access site (1) based on the image data (3) in the second orientation (52).

The disclosure provides systems, methods and materials useful for the noninvasive estimation of intracranial pressure. Embodiments of the invention include systems for estimating intracranial pressure in a subject which comprise a headset adapted to rest on the head and / or face of the subject and at least one sensing probe. In such systems, the sensing probe is coupled to the headset in an orientation such that the sensing probe can sense phenomena such as optic nerve diameter and / or optic nerve sheath diameter. In illustrative systems, the sensing probe is adapted to capture sensed parameters and the system then correlates one or more sensed parameters with intracranial pressure so as to estimate intracranial pressure in the subject noninvasively.

The invention discloses an optical biological measurement device and method for automatically judging an eyeball state, and relates to the field of medical image processing, and the device comprises a pre-scanning image acquisition module, an eyeball state judgment module and a measurement module; the pre-scanning image acquisition module is used for acquiring a standard scanning image; the eyeball state judgment module is used for judging based on the scanning image to obtain an eyeball state; the measurement module is used for completing biological measurement based on the eyeball state. According to the method, feature extraction is carried out on the position graph of the crystalline lens by adopting a deep learning technology according to the scanned image, the feature is compared with a preset database, meanwhile, the crystalline lens state is accurately judged according to a judgment criterion, and biological parameter scanning and (or) measurement are further carried out according to the correct eyeball state; and the accuracy and efficiency of biological parameter measurement can be effectively improved.