Abstract: A bounding volume is used to approximate the space an object occupies. If a more precise understanding beyond an approximation is required, the object itself is then inspected to determine what space it occupies. Often, a simple volume (such as an axis-aligned box) is used as bounding volume to approximate the space occupied by an object. But objects can be arbitrary, complicated shapes. So a simple volume often does not fit the object very well. That causes a lot of space that is not occupied by the object to be included in the approximation of the space being occupied by the object. Hardware-based techniques are disclosed herein, for example, for efficiently using multiple bounding volumes (such as axis-aligned bounding boxes) to represent, in effect, an arbitrarily shaped bounding volume to better fit the object, and for using such arbitrary bounding volumes to improve performance in applications such as ray tracing.

Abstract: A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include opaque and alpha triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to determine primitives intersected by the ray, and return intersection information to a streaming multiprocessor for further processing. The hardware-based traversal coprocessor is configured to omit reporting of one or more primitives the ray is determined to intersect. The omitted primitives include primitives which are provably capable of being omitted without a functional impact on visualizing the virtual scene.

Abstract: Secure medication storage is described herein. A smart latch includes an actuator, a communication interface, a display, and a processor. The actuator is configured to open and close a latch to secure a door of the enclosure. The processor can be configured to receive a user credential for accessing the enclosure, validate the user credential for accessing the enclosure, trigger the actuator to open the latch, thereby allowing the door to be opened, and trigger the actuator to close the latch after detecting that the door is closed, thereby securing the door.

Abstract: Locking actuators for thrust reverser actuation systems, engines and aircraft including the same, and associated methods. A locking actuator includes an actuator housing, an extension element, and a lock assembly. The extension element is configured to translate along an actuator axis to transition between a retracted state and an extended state. The lock assembly transitions between a locked state and an unlocked state independent of transitioning the extension element between the retracted and extended states. In examples, a thrust reverser actuation system includes an actuator assembly with the locking actuator and a hydraulic control assembly. In examples, an engine includes a thrust generator, a nacelle, a transcowl, and the thrust reverser actuation system. In examples, a method of operating a thrust reverser actuation system includes transitioning a lock assembly from a locked state to an unlocked state and transitioning an extension element from a retracted state to an extended state.

Abstract: An integrated intravenous (IV) administration set includes a flow stop having a tubing fitment and a housing, the flow stop configured, in a first position, to prevent a flow of a fluid through the tubing, and in a second position, to permit the flow of the fluid through the tubing, the tubing fitment comprising a protrusion configured to receive a tubing. The IV administration set also includes an electronic flow sensor disposed within the housing, the electronic flow sensor configured to measure a flow of a fluid in the tubing, and one or more conductive connections configured within the housing and configured to provide electrical power to the electronic flow sensor. The flow stop is shaped to be loaded and engaged to a receptacle of an infusion device, and shaped to cause, when loaded and engaged, the one or more conductive connections to engage with a corresponding conductive connection provided by the infusion device to activate the flow sensor based on a power flow from the infusion device.

Abstract: Force sensing assemblies for an infusion pump are provided. A force sensing assembly includes a processor and an occlusion sensor coupled to the processor. The occlusion sensor is positioned opposed to an occluder valve when the platen is closed. The force sensing assembly measures one or more forces exerted on a fluid tube during a pump cycle. Infusion pump assemblies, methods of operating an infusion pump with a force sensing assembly, systems for controlling an infusion pump and an infusion device are also provided.

Abstract: Methods and systems are described in some examples for changing the traversal of an acceleration data structure in a highly dynamic query-specific manner, with each query specifying test parameters, a test opcode and a mapping of test results to actions. In an example ray tracing implementation, traversal of a bounding volume hierarchy by a ray is performed with the default behavior of the traversal being changed in accordance with results of a test performed using the test opcode and test parameters specified in the ray data structure and another test parameter specified in a node of the bounding volume hierarchy. In an example implementation a traversal coprocessor is configured to perform the traversal of the bounding volume hierarchy.

Abstract: A system and method for operating an analgesia administration system is disclosed. A control device is associated with a drug delivery device and configured to receive a first user input including at least a portion of a fingerprint of a patient, together with a second user input corresponding to a request to administer medication. The portion of the fingerprint is compared with previously-stored fingerprints to determine an identity of the patient and, in response to receiving the second user input and determining that the patient is an authorized user, one or more sensors are used to obtain one or more signals indicative of a state of the patient. If the state of the patient satisfies a set of medication delivery criteria, the drug delivery device is caused to administer a predefined amount of medication to the patient.

Abstract: A wasting station for receiving a wasted medication from a medication dispenser is provided. The wasting station includes a base and a locking mechanism. The base includes a weight sensor to measure a weight of a waste container supported by the base. The wasting station can determine, based on the measured weight, a volume of the wasted medication positioned within the waste container. The locking mechanism includes a first end coupled to the base. The locking mechanism also includes a second end coupled to the waste container when the locking mechanism is in a first position and decoupled from the waste container when the locking mechanism moves from the first position to a second position, thereby allowing for removal of the waste container.

Abstract: A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include opaque and alpha triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to determine primitives intersected by the ray, and return intersection information to a streaming multiprocessor for further processing. The hardware-based traversal coprocessor is configured to provide a deterministic result of intersected triangles regardless of the order that the memory subsystem returns triangle range blocks for processing, while opportunistically eliminating alpha intersections that lie further along the length of the ray than closer opaque intersections.

Abstract: In a ray tracer, a cache for streaming workloads groups ray requests for coherent successive bounding volume hierarchy traversal operations by sending common data down an attached data path to all ray requests in the group at the same time or about the same time. Grouping the requests provides good performance with a smaller number of cache lines.

Abstract: Systems and methods for an efficient and robust multiprocessor-coprocessor interface that may be used between a streaming multiprocessor and an acceleration coprocessor in a GPU are provided. According to an example implementation, in order to perform an acceleration of a particular operation using the coprocessor, the multiprocessor: issues a series of write instructions to write input data for the operation into coprocessor-accessible storage locations, issues an operation instruction to cause the coprocessor to execute the particular operation; and then issues a series of read instructions to read result data of the operation from coprocessor-accessible storage locations to multiprocessor-accessible storage locations.

Abstract: Systems and methods for providing automated inventory management of medicine and healthcare items stored within bins in care facilities are disclosed. A method includes providing an interactive storage device for attaching to a bin, and outputting, via an audiovisual element, a visual representation of a local inventory of the bin, receiving a user input, determining a change to the local inventory according to the user input, updating the local inventory in a non-volatile data store according to the change, synchronizing the local inventory with one or more nodes via a communication interface, and receiving, from the one or more nodes via the communication interface, periodic updates for a local cache comprising locations and inventories of one or more remote bins.

Abstract: Systems and methods for providing automated inventory management of medicine and healthcare items stored within bins in care facilities are disclosed. A method includes providing an interactive storage device for attaching to a bin, and outputting, via an audiovisual element, a visual representation of a local inventory of the bin, receiving a user input, determining a change to the local inventory according to the user input, updating the local inventory in a non-volatile data store according to the change, synchronizing the local inventory with one or more nodes via a communication interface, and receiving, from the one or more nodes via the communication interface, periodic updates for a local cache comprising locations and inventories of one or more remote bins.

Abstract: A method for remotely witnessing a medical workflow is provided. The method includes authenticating a clinician at a witnessing device. The method also includes receiving, at the witnessing device, a request to perform a medical workflow. The method further includes determining, at the witnessing device and based at least in part on the medical workflow, that a witness is required to observe the medical workflow. The method also includes initiating, at a witnessing client remotely coupled with the witnessing device, a witnessing session, wherein the witnessing client allows a witness to remotely observe the medical workflow. The method also includes enabling, in response to at least the initiation of the witnessing session, completion of the medical workflow. Related systems and articles of manufacture, including apparatuses and computer program products, are also disclosed.

Abstract: Secure medication storage is described herein. A smart latch includes an actuator, a communication interface, a display, and a processor. The actuator is configured to open and close a latch to secure a door of the enclosure. The processor can be configured to receive a user credential for accessing the enclosure, validate the user credential for accessing the enclosure, trigger the actuator to open the latch, thereby allowing the door to be opened, and trigger the actuator to close the latch after detecting that the door is closed, thereby securing the door.

Abstract: A bin assembly, bin identification system and method are disclosed. A container bin assembly includes a bin body, a latching mechanism, and controller. A method includes receiving, via a communication interface, an authenticated request to access the smart container, actuating an electromechanical latch to disengage a fastening hook, thereby initiating a mechanical movement of an access component to make an internal compartment accessible, outputting, via an audiovisual element, an alert to identify the container, confirming that the electromechanical latch has re-engaged with the fastening hook, thereby securing the internal compartment, determining a change in a local inventory, and updating the local inventory in a non-volatile data store according to the change.

Abstract: In a ray tracer, to prevent any long-running query from hanging the graphics processing unit, a traversal coprocessor provides a preemption mechanism that will allow rays to stop processing or time out early. The example non-limiting implementations described herein provide such a preemption mechanism, including a forward progress guarantee, and additional programmable timeout options that can be time or cycle based. Those programmable options provide a means for quality of service timing guarantees for applications such as virtual reality (VR) that have strict timing requirements.

Abstract: The disclosed systems and methods provide a smart container or bin. A container bin assembly includes a bin body, a latching mechanism, and controller. A method includes receiving, via a communication interface, an authenticated request to access the smart container, actuating an electromechanical latch to disengage a fastening hook, thereby initiating a mechanical movement of an access component to make an internal compartment accessible, outputting, via an audiovisual element, an alert to identify the container, confirming that the electromechanical latch has re-engaged with the fastening hook, thereby securing the internal compartment, determining a change in a local inventory, and updating the local inventory in a non-volatile data store according to the change.

Abstract: A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to properly handle numerically challenging computations at or near edges and/or vertices of primitives and/or ensure that a single intersection is reported when a ray intersects a surface formed by primitives at or near edges and/or vertices of the primitives.