Abstract: Navigation and simulation systems and methods for minimally invasive therapy in which the navigation system imports a planning method using patient specific preoperative images. The navigation system uses intraoperative imaging during the medical procedure to update the preoperative images and provides images of tracked surgical tools along the surgical path prepared from the preoperative images.

Abstract: A cutlery dispensing system includes a base having a plurality of base compartments with identical retaining features and a plurality of dispensers having compatible retaining features allowing them to be installed in the base in any desired order and combination. In embodiments, individual dispensers remain vertically supported when they are horizontally slid part-way out of the base to access side features that enable cutlery refilling. The base can comprise a plurality of interlocking compartment base units, each of which having one or more base compartments, to allow flexible configuration and expansion of the base. End caps can be used to terminate the sides of the base. Compartment base units with only one base compartment can be less than six inches wide.

Abstract: A system for easily refilling cutlery dispensers and other devices includes a stack of identical cutlery items maintained by a retaining structure that can be removed either before, during, or after installation, depending on the dispenser configuration. In a first aspect, the cutlery handles are nested and the retaining structure includes a single adhesive strip applied to only one side of the stack. In a second aspect, the retaining structure includes separate adhesive strips applied to each side of the stack. In a third aspect, the retaining structure comprises a band extending around the stack, removal of the band from the stack being facilitated by breaking of a frangible section of the band. In all aspects a pull-tab or other graspable element can be provided to facilitate removal of the support structure. The stacked cutlery may also be loaded into a caddy or into a tray.

Abstract: An escapement mechanism of a cutlery dispenser causes a cutlery article to fall from a vertical stack onto a slide track that guides it to a dispensing position. A slide channel and head channel of the slide track can laterally confine the cutlery article. A dampening surface can reduce cutlery bouncing and skewing. The escapement mechanism can include at least three pivots and/or a coil return spring. Dispensers can be installed in a base in any desired combination and retained therein by compatible features such as flanges and slots that prevent dispenser tipping. In embodiments, individual dispensers can be horizontally slid part-way out of the base to access side features that would otherwise be obscured by a neighboring dispenser. A cutlery quantity indicator can laterally contact the cutlery stack and can pivot to display a low-cutlery signal when the cutlery stack falls below an indicator height.

Abstract: An escapement mechanism of a cutlery dispenser causes a cutlery article to fall from a vertical stack onto a slide track that guides it to a dispensing position. A slide channel and head channel of the slide track can laterally confine the cutlery article. A dampening surface can reduce cutlery bouncing and skewing. The escapement mechanism can include at least three pivots and/or a coil return spring. Dispensers can be installed in a base in any desired combination and retained therein by compatible features such as flanges and slots that prevent dispenser tipping. In embodiments, individual dispensers can be horizontally slid part-way out of the base to access side features that would otherwise be obscured by a neighboring dispenser. A cutlery quantity indicator can laterally contact the cutlery stack and can pivot to display a low-cutlery signal when the cutlery stack falls below an indicator height.

Abstract: An escapement mechanism of a cutlery dispenser causes a cutlery article to fall from a vertical stack onto a slide track that guides it to a dispensing position. A slide channel and head channel of the slide track can laterally confine the cutlery article. A dampening surface can reduce cutlery bouncing and skewing. The escapement mechanism can include at least three pivots and/or a coil return spring. Dispensers can be installed in a base in any desired combination and retained therein by compatible features such as flanges and slots that prevent dispenser tipping. In embodiments, individual dispensers can be horizontally slid part-way out of the base to access side features that would otherwise be obscured by a neighboring dispenser. A cutlery quantity indicator can laterally contact the cutlery stack and can pivot to display a low-cutlery signal when the cutlery stack falls below an indicator height.

Abstract: An escapement mechanism of a cutlery dispenser causes a cutlery article to fall from a vertical stack onto a slide track that guides it to a dispensing position. A slide channel and head channel of the slide track can laterally confine the cutlery article. A dampening surface can reduce cutlery bouncing and skewing. The escapement mechanism can include at least three pivots and/or a coil return spring. Dispensers can be installed in a base in any desired combination and retained therein by compatible features such as flanges and slots that prevent dispenser tipping. In embodiments, individual dispensers can be horizontally slid part-way out of the base to access side features that would otherwise be obscured by a neighboring dispenser. A cutlery quantity indicator can laterally contact the cutlery stack and can pivot to display a low-cutlery signal when the cutlery stack falls below an indicator height.

Abstract: An escapement mechanism of a cutlery dispenser causes a cutlery article to fall from a vertical stack onto a slide track that guides it to a dispensing position. A slide channel and head channel of the slide track can laterally confine the cutlery article. A dampening surface can reduce cutlery bouncing and skewing. The escapement mechanism can include at least three pivots and/or a coil return spring. Dispensers can be installed in a base in any desired combination and retained therein by compatible features such as flanges and slots that prevent dispenser tipping. In embodiments, individual dispensers can be horizontally slid part-way out of the base to access side features that would otherwise be obscured by a neighboring dispenser. A cutlery quantity indicator can laterally contact the cutlery stack and can pivot to display a low-cutlery signal when the cutlery stack falls below an indicator height.

Abstract: A system for easily refilling cutlery dispensers and other devices includes a stack of identical cutlery items maintained by a retaining structure that can be removed either before, during, or after installation, depending on the dispenser configuration. In a first aspect, the cutlery handles are nested and the retaining structure includes a single adhesive strip applied to only one side of the stack. In a second aspect, the retaining structure includes separate adhesive strips applied to each side of the stack. In a third aspect, the retaining structure comprises a band extending around the stack, removal of the band from the stack being facilitated by breaking of a frangible section of the band. In all aspects a pull-tab or other graspable element can be provided to facilitate removal of the support structure. The stacked cutlery may also be loaded into a caddy or into a tray.

Abstract: A system for easily refilling cutlery dispensers or other devices includes a stack of identical cutlery items maintained by a retaining structure that can be removable either before, during, or after installation, depending on the configuration of the dispenser. In a first aspect, the retaining structure includes nested cutlery handles and a single adhesive strip applied to one side of the stack. In a second aspect, the retaining structure includes separate adhesive strips applied to each side of the stack. In a third aspect, the retaining structure is a band extending entirely around the stack and equipped with a pull-tab for opening and removing the retaining structure. In all aspects a pull-tab or other graspable element can be provided to facilitate removal of the support structure. The stacked cutlery may also be loaded into a caddy or into a tray.

Abstract: An escapement mechanism of a cutlery dispenser causes a cutlery article to fall from a vertical stack onto a slide track that guides it to a dispensing position. A slide channel and head channel of the slide track can laterally confine the cutlery article. A dampening surface can reduce cutlery bouncing and skewing. The escapement mechanism can include at least three pivots and/or a coil return spring. Dispensers can be installed in a base in any desired combination and retained therein by compatible features such as flanges and slots that prevent dispenser tipping. In embodiments, individual dispensers can be horizontally slid part-way out of the base to access side features that would otherwise be obscured by a neighboring dispenser. A cutlery quantity indicator can laterally contact the cutlery stack and can pivot to display a low-cutlery signal when the cutlery stack falls below an indicator height.

Abstract: A system for easily refilling cutlery dispensers or other devices includes a stack of identical cutlery items maintained by a retaining structure that can be removable either before, during, or after installation, depending on the configuration of the dispenser. In a first aspect, the retaining structure includes nested cutlery handles and a single adhesive strip applied to one side of the stack. In a second aspect, the retaining structure includes separate adhesive strips applied to each side of the stack. In a third aspect, the retaining structure is a band extending entirely around the stack and equipped with a pull-tab for opening and removing the retaining structure. In all aspects a pull-tab or other graspable element can be provided to facilitate removal of the support structure. The stacked cutlery may also be loaded into a caddy or into a tray.

Abstract: A lid and tray assembly includes at least two lift tabs and/or indentations at separated but not directly opposing locations about the lid periphery that can be actuated simultaneously or sequentially to provide two distinct locations from which initial disengagements can extend and merge to enable easy removal of the entire lid. Embodiments further include locations that can be pressed while corresponding tabs are lifted. Some embodiments include a peripheral skirt that is short enough to allow a user's fingers to pass beneath and support the tray sidewalls when lifting the tray-lid assembly from a horizontal surface, avoiding any need for the lid engagement to bear the weight of the tray and its contents. Lid-tray engagement can be by means of inserting a lid peripheral rim into a tray lip groove, or by engaging a lid rim undercut with a tray lip undercut.

Abstract: A lid and tray assembly includes at least two lift tabs and/or indentations at separated but not directly opposing locations about the lid periphery that can be actuated simultaneously or sequentially to provide two distinct locations from which initial disengagements can extend and merge to enable easy removal of the entire lid. Embodiments further include locations that can be pressed while corresponding tabs are lifted. Some embodiments include a peripheral skirt that is short enough to allow a user's fingers to pass beneath and support the tray sidewalls when lifting the tray-lid assembly from a horizontal surface, avoiding any need for the lid engagement to bear the weight of the tray and its contents. Lid-tray engagement can be by means of inserting a lid peripheral rim into a tray lip groove, or by engaging a lid rim undercut with a tray lip undercut.

Abstract: A polygonal lid and container base provide secure and reliable engagement therebetween, while also facilitating removal of the lid without disturbing contents and without applying undue stress to the lid. The lid includes at least one graspable member near or at a designated “release” vertex that facilitates disengagement of the lid from the container base at the release vertex. The lid further includes regions of enhanced engagement that enhance the attachment of the lid to the container base at least along the two sides of the lid that adjoin the release vertex, causing the overall attachment to be less dependent on attachment at the release vertex. As a result, the strength of attachment at the release vertex can be made weaker than at the other vertices, for easy release of the release vertex, without undue weakening of the overall attachment of the lid to the container base.

Abstract: Plastic cutlery and tableware made in at least two parts joinable to form a unitary utensil, serving piece, beverage container or non-food contacting tableware in which the two parts are made of different materials. The materials of the two parts differ in at least one of the following: color, type of plastic, grade of plastic, source of plastic, and additives such as the presence of an anti-microbial agent, transparency, or reflectivity. Food-grade resins, for example, can be used for the heads of cutlery and recycled resins are used for the handles. Heads can be separately metalized and then joined to non-metalized handles. Handles may be made to fit to different types of heads. The two parts of the cutlery may be joined by inserting a tang extending from one into a cavity formed in the other. The two parts of tableware may be joinable by a snap-fit configuration.