A system for scanning a dental arch of a patient includes a reference element having a reference pattern thereon; a holding mechanism configured to hold the reference element in a fixed position inside the patient's oral cavity adjacent to and spaced from the dental arch, wherein the holding mechanism is configured to be installed on the patient without contacting an occlusal surface of the dental arch; and an intra-oral scanner configured to scan the dental arch and an adjacent portion of the reference element to obtain a scanned image comprising the scanned portion of the dental arch and the scanned adjacent portion of the reference pattern.

An endoscopy system including a flexible insertion tube, a motion sensing device and a processor is provided. The flexible insertion tube has a central axis. The motion sensing device includes a housing, a plurality of patterns and a plurality of sensors. The patterns are disposed at a surface of the flexible insertion tube according to an axial orientation distribution and an angle distribution based on the central axis. During the relative motion of the flexible insertion tube between the motion sensing device via a guiding hole, the sensors sense a motion state of the patterns so as to obtain a motion-state sensing result. The processor determines an insertion depth information and an insertion tube rotating angle information based on the motion-state sensing result, the axial orientation distribution and the angle distribution. A method of reconstructing a three-dimensional structure is also provided.

Systems and methods for improving endoscopy procedures are described that provide not only a conventional real time image of the view obtained by an endoscope, but in addition, a near real time 3D model and/or a 2D flattened image of an interior surface of an organ, which model and image may be processed using AI software to highlight potential tissue abnormalities for closer examination and/or biopsy during the procedure. A navigation module interacts with other system outputs to further assist the endoscopist with navigational indicia, e.g., landmarks and/or directional arrows, that enhance the endoscopists' spatial orientation, and/or may provide navigational guidance to the endoscopist to assist manipulation of the endoscope.

Apparatus, including a tube having proximal and distal ends and an internal lumen. The distal end may bend up to 270°, and the tube may be inserted into an eye. A planar resilient strip, having proximal and distal ends, is inserted into the internal lumen, and the strip distal end is fixed to the tube distal end. A coil spring is fixed to the strip proximal end so that a coil spring symmetry axis is coplanar with the strip. A camera, mounted with the strip distal end, images the eye interior. A wire is fixed to the strip distal end, so that a predetermined force on the wire causes the tube distal end to bend by a preset angle. A magnetometer at the tube proximal end is configured, when a nonvarying magnetic field traverses it, to provide a signal that, when taken with the preset angle, indicates a camera orientation.

Apparatuses and methods for medical applications and, more particularly, to steerable flexible medical devices applicable to guide tools and devices in medical procedures, including endoscopes, cameras, and catheters are provided. The apparatuses and methods also include generating a panoramic image of an interior of a branching structure at or near the distal end of the flexible medical device wherein the panoramic image is generated based on the images of the branching structure.

A method, system and computer readable storage media for guiding an intra-oral scan utilizing augmented reality. By visualizing a scan strategy in a field of view of a clinician during an intra-oral scanning scan procedure, a need to monitor the progress of the intra-oral scan on a separate monitor may be eliminated or reduced in order to save time.

A method and system for processing medical images including acquiring a first medical image using a medical imaging device, analyzing a state of the first medical image using image information of the first medical image which includes depth information, and automatically determining and displaying, without user intervention, a second medical image, which corresponds to the first medical image and has a smaller angle of view than the first medical image, based on the analyzing including analyzing of the depth information. Further, there is a method of training a neural network. The training includes collecting a set of training information which includes image quality information, camera position information, and surgical tool information, training the neural network based on the set of training information, the neural network used for changing a view based on current camera position information and current surgical tool information.

Methods and apparatuses for assessing oral health and automatically providing diagnosis of one or more oral diseases. Described herein are intraoral scanning methods and apparatuses for collecting and analyzing image data and to detect and visualize features within image data that are indicative of oral diseases or conditions, such as gingival inflammation or oral cancer. These methods and apparatuses may be used for identifying and evaluating lesions, redness and inflammation in soft tissue and caries and cracks in the teeth. The methods an include training a machine learning model and using the trained machine learning model to provide a diagnosis of an oral disease or condition based on image data collected using multiple scanning modes of an intraoral scanner.

Methods and apparatuses for generating a model of a subject's teeth. Described herein are intraoral scanning methods and apparatuses for generating a three-dimensional model of a subject's intraoral region (e.g., teeth) including both surface features and internal features. These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth. Any of these methods and apparatuses may use minimum scattering coefficients and/or segmentation to form a volumetric model of the teeth.

A method for imaging involves scanning an anatomical object within a patient and capturing reflected IR light with a plurality of cameras that are separate from the scanner. The IR images captured by the IR cameras are associated together to create an integrated image based on parallax between the IR cameras and the scanner. The integrated image is associated with a separate or optical light image of the anatomical object to generate an intra-operative 3D image that can be created in real-time. Systems for effectuating such imaging may include multiple surgical instruments supporting various cameras positioned to capture different fields of view and to increase parallax.