Abstract: Cutting instruments and related methods are disclosed herein in which the diameter of the retrograde cutting blade can be adjusted to any of a plurality of diameter settings, allowing the same instrument to be used to form holes of different diameters. The limit diameter can be preset such that, during the cutting operation, the user need not be concerned with selecting the appropriate diameter, but rather can simply deploy the cutting blade until the preset limit is reached. Cutting instruments are also disclosed in which the retrograde cutting blade is distinct from the forward drilling tip and protected within a cavity formed in the body of the instrument when not in use, as are instruments in which the user is given visual and/or tactile feedback to confirm desired positioning of the cutting blade.

Abstract: A computer system displays a first application user interface at a first location in a three-dimensional environment. While displaying the first application user interface at the first location in the three-dimensional environment, the computer system detects, at a first time, a first input corresponding to a request to close the first application user interface. In response to detecting the first input corresponding to a request to close the first application user interface: the computer system closes the first application user interface, including ceasing to display the first application user interface in the three-dimensional environment; and, in accordance with a determination that respective criteria are met, the computer system displays a home menu user interface at a respective home menu position that is determined based on the first location of the first application user interface in the three-dimensional environment.

Abstract: Devices, systems, and methods are provided for ligament repair procedures, and can be used to establish a location and trajectory for forming a bone tunnel in bone. One exemplary embodiment of a surgical guide for using in a ligament repair procedure includes a guide arm and a carriage that can be selectively locked along the guide arm to define an angle of the bone tunnel. The guide arm also defines a location of a distal end of the bone tunnel. In some embodiments the carriage is configured to have a bullet side-loaded into it, and the bullet can be used to define a location of a proximal end of the bone tunnel. The present disclosure also provides for a gage that limits the distance a drill pin that drills the bone tunnel can travel. A variety of other, devices, systems, and methods are also provided.

Abstract: A multi-functional handheld hygienic device with a J-shaped nozzle and attachment options for alternate use externally on either the genital area as a bidet or the rectal area as a wash and for use internally in the genital area as a douche and the rectal area as an enema. A temperature controlled water tank or water diverter attached to a combined hot and cold faucet supplies temperature controlled water to the nozzle.

Abstract: The wall space and the mounting space for turbine bearings in the casing of an aircraft gas turbine are each supplied with cooling air via a separate pipe, a first cooling-air pipe opening into the wall space and a second cooling-air pipe extending through the wall space and opening in the mounting space. To ensure that the respective space continues to be supplied with cooling air even if one of the two pipes breaks, the cooling-air pipe extending through the wall space and opening into the mounting space has air overflow openings in the region of the wall space.

Abstract: A long or triple jump foul detector system is disclosed which very accurately detects a foul by an athlete when a portion of an athlete's shoe crosses over a foul line when beginning the jump. A laser beam is emitted parallel to and directly above the foul line. A laser beam detector detects interruption of the laser beam by the athlete's shoe and a foul detector provides a foul indication. An audible foul indication is delayed so as not to interfere with the athlete's jump. Also, the system may provide additional detection of an athlete's foot crossing a training line positioned in front of the foul line. Furthermore, the system distinguishes between a relatively quick interruption of the beam caused by the athlete's shoe when jumping, and a relatively slow interruption of the beam which may result such as by a judge placing his or her hand in the beam when measuring a jump.

Abstract: Water vapor released by evaporation in a cooling tower, is conducted through an enclosure to the upper inlet end of a vertical conduit extending into the body of water stored in the cooling tower. The water vapor downflowing through the vertical conduit under vacuum conditions is condensed by cooling sprays of water drawn by pumps from the bottom of the cooling tower.