Abstract: A locating method and apparatus for a robot, and a computer-readable storage medium. The locating method includes: determining current possible pose information of the robot according to current ranging data collected by a ranging unit; determining, according to first current image data collected by an image collection unit, first historical image data matching with the first current image data, the first historical image data being collected by the image collection unit at a historical moment; obtaining first historical pose information of the robot at a moment when the first historical image data is collected; and in response to quantity of the current possible pose information being at least two pieces, matching the first historical pose information with each piece of the current possible pose information, and using matched current possible pose information as current target pose information.

Abstract: A stent placement assembly is disclosed.

Abstract: The invention relates to an apparatus for providing and maintaining access to a surgical site, particularly a surgical site that needs to be accessed through delicate tissue such as brain tissue. The invention relates particularly to an apparatus that uses an expandable member or trochar. In one arrangement the expandable member is positioned proximally relative to the distal end of an obturator when the apparatus is in an insertion configuration for insertion to the surgical site. The expandable member comprises a frame and a membrane attached to the frame. The frame and membrane are configured to allow bending of at least a portion of the surface of the expandable member about an axis perpendicular to the longitudinal axis without breakage of the expandable member.

Abstract: A stent placement assembly is disclosed.