A61B90/36

IMAGE GUIDANCE METHODS AND APPARATUS FOR GLAUCOMA SURGERY
20230146204 · 2023-05-11 ·

An imaging probe comprises a camera or endoscope with an external detector array, in which the probe is sized and shaped for surgical placement in an eye to image the eye from an interior of the eye during treatment. The imaging probe and a treatment probe can be coupled together with a fastener or contained within a housing. The imaging probe and the treatment probe can be sized and shaped to enter the eye through an incision in the cornea and image one or more of the ciliary body band or the scleral spur. The treatment probe may comprise a treatment optical fiber or a surgical placement device to deliver an implant. A processor coupled to the detector can be configured with instructions to identify a location of one or more of the ciliary body band, the scleral spur, Schwalbe's line, or Schlemm's canal from the image.

INTERACTIVE AUGMENTED REALITY SYSTEM FOR LAPAROSCOPIC AND VIDEO ASSISTED SURGERIES
20230147826 · 2023-05-11 ·

This disclosure describes an interactive augmented reality system for improving surgeon's view and context awareness during laparoscopic and video assisted surgeries. Instead of purely relying on computer vision algorithms for image registration between pre-operation (or intra-operation) images/models and later intra-operation scope images, the system can implement an interactive mechanism where surgeons may provide supervised information in initial calibration phase of the augmented reality function, thus achieving high accuracy in image registration. Besides the initialization phase before operation starts, interaction between surgeon and the system can also happens during the surgery. Specifically, patient tissue might move or deform during surgery, caused by for example cutting. The augmented reality system can re-calibrate during surgery when image registration accuracy deteriorates, by seeking additional supervised labeling from surgeons. The augmented reality system can improve surgeon's view during surgery, by utilizing surgeon's guidance sporadically to achieve high image registration accuracy.

Systems and methods for augmented reality based surgical navigation
11638613 · 2023-05-02 ·

The present disclosure involves object recognition as a method of registration, using a stereoscopic camera on Augmented Reality (AR) glasses or an endoscope as the image capture technology. Exemplary objects include surgical tools, anatomical components or features, such as bone or cartilage, etc. By detecting just a portion of the object in the image data of the surgical scene, the present disclosure may register and track a portion of the patient's anatomy, such as the pelvis, the knee, etc. The present disclosure also optionally displays information on the AR glasses themselves, such as the entire pelvis, the femur, the tibia, etc. The present disclosure may include combinations of the foregoing features, and may eliminate the need for electromagnetic, inertial, or infrared stereoscopic tracking as the tracking technology.

Lighting arrangement for a medical imaging system

A lighting arrangement for a medical imaging system having a cylindrical wall that forms a tunnel that receives a patient to be scanned. The lighting arrangement includes a transparent wall section formed in the wall, wherein the transparent wall section extends along a transparent portion of a wall circumference. The imaging system also includes a lighting device located adjacent an outer surface of the transparent wall section. The lighting device extends along a device portion of a wall circumference corresponding to the transparent portion wherein light emitted by the lighting device is transmitted through the transparent wall section in a direction orthogonal to a longitudinal axis of the tunnel to circumferentially illuminate the tunnel. In addition, a system status is indicated by a color of light emitted by the LEDs. Further, light emitted by the lighting device varies in intensity to indicate a changing count rate.

Mixed-reality surgical system with physical markers for registration of virtual models

An example method includes obtaining, a virtual model of a portion of an anatomy of a patient obtained from a virtual surgical plan for an orthopedic joint repair surgical procedure to attach a prosthetic to the anatomy; identifying, based on data obtained by one or more sensors, positions of one or more physical markers positioned relative to the anatomy of the patient; and registering, based on the identified positions, the virtual model of the portion of the anatomy with a corresponding observed portion of the anatomy.

METHOD AND NAVIGATION SYSTEM FOR REGISTERING TWO-DIMENSIONAL IMAGE DATA SET WITH THREE-DIMENSIONAL IMAGE DATA SET OF BODY OF INTEREST

A method for registering a two-dimensional image data set with a three-dimensional image data set of a body of interest is discloses herein. The method includes the following steps: obtaining a first spatial parameter of a first registered virtual camera, wherein the first registered virtual camera is positioned corresponding to a first two-dimensional image of the two-dimensional image data set; and adjusting a second spatial parameter of the first unregistered virtual camera with the first spatial parameter of the first registered virtual camera, wherein the first unregistered virtual camera is failed to be positioned corresponding to the first two-dimensional image of the two-dimensional image data set.

METHOD AND SYSTEM FOR DELINEATING AND LINKING/CORRELATING OPPOSING MARGINS OF A PATHOLOGY SPECIMEN AND IMMEDIATELY ADJACENT REMAINING IN VIVO MARGINS
20230149119 · 2023-05-18 · ·

The disclosure is directed to a novel technique for anatomically orientating a removed tissue specimen with the margins of the tissue from which it has been removed. An example process of marking the margins of the excised surgical specimen and the anatomically adjacent in vivo margins can be implemented by a surgeon at the time of removal of the surgical specimen. After removing the surgical specimen from its adjacent tissue, a surgical cavity is generated. Thereafter, locations around the surface margins of the specimen and appropriate locations on the margins of the surgical cavity are marked with one or more pairs of markers (SpM and IVM respectively) with matching identities.

CALIBRATION OF 2D IMAGES FOR DIGITAL TEMPLATING USING MONOMARKER
20230149114 · 2023-05-18 ·

A method of calibrating a frontal 2D image of a pelvis of a patient is disclosed. Frontal and lateral 2D images are received, where a fiducial marker is positioned on the patient’s suprapubic region during image capture. A first distance of the fiducial marker from the imaging detector is determined based on the fiducial marker’s measured diameter in the frontal image. A second distance of the fiducial marker from a coronal plane of the pelvis is determined based on the fiducial marker’s measured diameter in the lateral image. The second distance is corrected based on a rotational offset of the patient in the lateral image. A third distance of the coronal plane from the imaging detector in the frontal image is determined from the first distance and corrected second distance. A calibration factor for the frontal image is calculated from the third distance and used to scale the frontal image.

PATHOLOGY REVIEW STATION
20230137665 · 2023-05-04 ·

Systems and methods for a pathology review station are disclosed. The pathology review station may assist pathologists in analyzing, slicing; or sampling specimens by, in part, projecting an image onto a specimen. The process of projecting an image onto a specimen may include identification of the specimen based on characteristics of the specimen, characteristics of a tray supporting the specimen, or user input. The identified specimen may then be matched with an image obtained by an imager received at the pathology review station. A projected image may then be compiled based on the obtained image; which may include the entire image or features associated with the image. The provided systems and methods may assist a pathologist in, at least, removal of embedded surgical markers and/or determining where to take samples from a specimen.

AREA OF INTEREST OVERLAY ON DENTAL SITE USING AUGMENTED REALITY

A system comprises an image capture device, an augmented reality (AR) display to display, and a processing device. The processing deice receives image data of a dental arch from the image capture device and processes the image data using a plurality of detection rules, where each detection rule detects one or more dental conditions. The processing device determines a dental condition for the dental arch based on the processing, determines a position of an area of interest on the dental arch, wherein the area of interest is associated with the dental condition, generates a visual overlay comprising an indication of the dental condition at the position of the area of interest, and outputs the visual overlay to the AR display, wherein the visual overlay is superimposed over a view of the dental arch on the AR display at the position of the area of interest.