Abstract: A method is disclosed for removing a vascular occlusion, such as a clot, from a blood vessel. A tubular sheath is inserted into the vessel and a self-expanding Nitinol mesh filter is deployed from a distal end of the tubular sheath at a location proximal to a clot. An inner catheter is advanced through the tubular sheath and through the mesh filter for contacting the clot. An expandable agitation element is provided along a distal end portion of the inner catheter for cutting or chopping the clot, thereby facilitating removal of the clot and improving blood flow through the vessel. Resulting clot particles are captured by the mesh filter. Negative pressure may be applied along a proximal end portion of the sheath for aspirating remaining particles. Certain embodiments of the method are well-suited for treating deep vein thrombosis and do not require the use of thrombolytic drugs.

Abstract: Described are techniques for shared viewing of video among remote users, including methods and corresponding systems and apparatuses. A first computer device operated by a first user can receive an input video stream representing a three-dimensional (3D) space. From the input video stream, an output video stream corresponding to the 3D space as seen from a viewing direction specified by the first user is generated. The output video stream includes images that cover a narrower field of view compared to the input video stream. The first computer device can receive information indicating a viewing direction specified by a second user, who is a user of a second computer device. The first computer device can update the output video stream based on the information indicating the viewing direction specified by the second user. The updated output video stream can then be presented on a display of the first user.

Abstract: A mitral valve leaflet repair system may include a delivery catheter having at least one lumen extending proximally from a distal end of the delivery catheter, a plurality of anchor elements disposed within the at least one lumen, each of the plurality of anchor elements being configured to extend through one layer of mitral valve leaflet tissue, and a securing element configured to secure at least two of the plurality of anchor elements together on one side of the mitral valve leaflet tissue. The at least one lumen may include a suction lumen configured to grasp a mitral valve leaflet prior to extending the plurality of anchor elements through one layer of mitral valve leaflet tissue.

Abstract: A medical assembly and methods for endovascularly implanting a valve in the heart having a valve and an anchor assembly for positioning and restraining the valve. An anchor delivery system introduces and implants the anchor into the implantation site and a valve delivery system introduces and seals the valve at the deployment site. The present invention also relates to methods of implantation of the medical assembly and the valve.

Abstract: Force modulating tissue bridges, and associated applicators, kits and methods are provided. A force modulating tissue bridge can be a medical article for at least partially covering a wound and/or scar tissue. The medical article can include an elastic arch extending over an area, and a medial strut connected to the arch and extending into the area over which the central section extends.

Abstract: A system to deliver energy to treat a mobile calculus, the system can include a drill and a lateral energy emitter. The drill can be configured to drill a recess into the mobile calculus or a passage through the mobile calculus. The lateral energy emitter can be configured to be advanced into the recess or the passage and to transmit the energy internal to the mobile calculus to fragment the mobile calculus. In some examples, the system can include a deployable capture portion to constrain a stone relative to the capture portion.

Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to determining a two-dimensional (2D) profile of a portion of a three-dimensional (3D) point cloud. A 3D region of interest is determined that includes a width along a first axis, a height along a second axis, and a depth along a third axis. The 3D points within the 3D region of interest are represented as a set of 2D points based on coordinate values of the first and second axes. The 2D points are grouped into a plurality of 2D bins arranged along the first axis. For each 2D bin, a representative 2D position is determined based on the associated set of 2D points. Each of the representative 2D positions are connected to neighboring representative 2D positions to generate the 2D profile.

Abstract: Methods and medical apparatus for deployment within an anatomical blood vessel. The medical apparatuses comprising: a first tubular wall, a second tubular wall, within the first tubular wall, and a constricting element configured to constrict a circumference of a portion of the second tubular wall; the combination of the first tubular wall, the second tubular wall and the constricting element forms a diametrical reducer.

Abstract: A computer-implemented method for 3D reconstruction including obtaining 2D images and, for each 2D image, camera parameters which define a perspective projection. The 2D images all represent a same real object. The real object is fixed. The method also includes obtaining, for each 2D image, a smooth map. The smooth map has pixel values, and each pixel value represents a measurement of contour presence. The method also includes determining a 3D modeled object that represents the real object. The determining iteratively optimizes energy. The energy rewards, for each smooth map, projections of silhouette vertices of the 3D modeled object having pixel values representing a high measurement of contour presence. This forms an improved solution for 3D reconstruction.

Abstract: A method includes receiving video data of a user, the video data comprising a first captured image and a second captured image, generating a two-dimensional planar proxy of the user, determining a pose comprising a location and orientation of the two-dimensional planar proxy within a three-dimensional virtual environment, rendering one or more display images for one or more displays of an artificial-reality device based on the two-dimensional planar proxy having the determined pose and at least one of the first and second captured images, displaying the rendered one or more display images using the one or more displays, respectively, determining that a viewing angle of the artificial-reality device relative to the two-dimensional planar proxy exceeds a predetermined maximum threshold, and based on the determination that the viewing angle exceeds the predetermined maximum threshold, ceasing to display the one or more display images.

Abstract: Systems and methods usable in delivering a docking device to a native valve of a patient's heart. A distal region of a delivery catheter can be positioned in an atrium of the heart and a distal tip can be positioned at or near a commissure of the native valve. The docking device can be located within the delivery catheter. A pusher, such as a pusher wire or tube, of a pusher tool can be advanced distally through the delivery catheter, wherein the pusher can push the docking device along within the delivery catheter. The docking device can be connected to the pusher tool by a line, such as a suture. A member of the pusher tool can be rotatable to change the amount of the suture extending from the pusher tool.

Abstract: An image-based method of modeling and rendering a three-dimensional model of an object is provided. The method comprises: obtaining a three-dimensional point cloud at each frame of a synchronized, multi-view video of an object, wherein the video comprises a plurality of frames; extracting a feature descriptor for each point in the point cloud for the plurality of frames without storing the feature descriptor for each frame; producing a two-dimensional feature map for a target camera; and using an anti-aliased convolutional neural network to decode the feature map into an image and a foreground mask.

Abstract: A tissue-removing catheter for removing tissue in a body lumen includes an elongate body having an axis, and proximal and distal end portions spaced apart from one another along the axis. The elongate body is sized and shaped to be received in the body lumen. A tissue-removing element is mounted on the distal end portion of the elongate body. The tissue-removing element is configured to remove the tissue as the tissue-removing element is rotated by the elongate body within the body lumen. An inner liner is received within the elongate body and defines a guidewire lumen. The inner liner is coupled to the tissue-removing element at a distal end portion of the inner liner. A coupling assembly is disposed in the tissue-removing element for coupling the inner liner to the tissue-removing element. The coupling assembly includes a bushing attached directly to the distal end portion of the inner liner.

Abstract: Techniques for three-dimensional product reconstruction using multiple images collected at checkout lanes are disclosed herein. An example method includes capturing, by a barcode reader associated with a point of sale (POS) workstation, first image data associated with each of a plurality of products passing through a product scanning region of the POS workstation; analyzing barcode data from the first image data captured by the barcode reader to identify each product of the plurality of products passing through the product scanning region of the POS workstation; capturing, by one or more color cameras associated with the POS workstation, second image data associated with the identified product, of the plurality of products passing through the product scanning region of the POS workstation; and generating, by a processor, a textured three-dimensional mesh reconstruction for the identified product based on the second image data associated with the identified product.

Abstract: Techniques related to validating an image based 3D model of a scene are discussed. Such techniques include detecting an object within a captured image used to generate the scene, projecting the 3D model to a view corresponding to the captured image to generate a reconstructed image, and comparing image regions of the captured and reconstructed images corresponding to the object to validate the 3D model.

Abstract: A thrombectomy system includes a frame having plurality of struts joined at an apex, a netting coupled to the plurality of struts, a pestle moveable relative to the frame and configured and arranged to macerate a clot within a vessel, adherent to its walls and against a portion of the apex of the frame.

Abstract: A stent incorporating flexible, preferably polymeric, connecting elements into the stent wherein these elements connect adjacent, spaced-apart stent elements. Preferably the spaced-apart adjacent stent elements are the result of forming the stent from a helically wound serpentine wire having space provided between adjacent windings. Other stent forms such as multiple, individual spaced-apart ring-shaped or interconnected stent elements may also be used. The connecting elements are typically web-shaped and result from creating slits or apertures in a covering of graft material applied to the stent and then, for example, applying heat to cause the slits or apertures to enlarge. The remaining graft material forms the interconnecting webs between the adjacent stent elements.

Abstract: A three-dimensional representation of a scene captured in an action shot base video may be determined. The three-dimensional representation may identify a camera pose. A representation of an object may be determined from a multi-view representation of the object that includes images of the object and that is navigable in one or more dimensions. An action shot video of the scene that includes a rendering of the object determined based on the representation and the camera pose may be generated.

Abstract: The present invention relates to a device for endoscopy or endosonography-guided transluminal interventions whereby two luminal structures in the body may be drawn toward each other and a fluid conduit formed in between. The device may have a hollow central member to which is coupled a distal retention member and in one embodiment a proximal retention member. The retention members may each be positioned inside one of the luminal structures and expanded from a first condition to an expanded second condition having an increased radius. The length of the central member may be shortened and its diameter expanded to approximate the two retention members and thereby the luminal structures.

Abstract: An apparatus for suturing includes an inner strut, a spiral suturing needle, a driving mechanism, a recovery mechanism, a suture-taking-up mechanism, and a suture-feeding mechanism. Grooves are distributed on periphery with respect to an axial direction of the inner strut, a path of the groove is consistent with a path of a metallic stent to be sutured, and a width of the groove matches an outer diameter of the spiral suturing needle; the spiral suturing needle is an elastic retractable structure and a length of the spiral suturing needle without deformation is longer than a length of the path of the groove, and a suturing needle tip is arranged on a head portion of the spiral suturing needle and a suture-piercing hole is arranged on a tail portion of the spiral suturing needle.