Abstract: Methods, systems, and devices for operating a wearable device are described. The wearable device may include a flexible inner body in the form of an open-ended ring that includes a first end that is movable relative to a second end such that an inner circumference of the inner body is expandable. The wearable device may include a flexible circuit board disposed concentrically around an outer circumference of the inner body and in the form of an open-ended ring. And the wearable device may include a flexible outer clip disposed concentrically around the flexible circuit board and in the form of an open-ended ring. The outer clip may be configured to provide a compressive force on the flexible circuit board and the outer circumference of the inner body.

Abstract: Systems and devices for a ring wearable cover with non-deformable circumference are described. The removable cover for a wearable ring device may include a ring-shaped surface configured to extend around a full circumference of the wearable ring device when the removable cover is in a mounted state on the wearable ring device and one or more mounting features that are disposed on the ring-shaped surface. The one or more mounting features may be configured to interact with a surface of the wearable ring device to lock the removable cover onto the wearable ring device when the removable cover is in the mounted state on the wearable ring device. In some cases, a diameter of the removable cover is unchanged while the removable cover transitions from the mounted state on the wearable ring device to an unmounted state off of the wearable ring device.

Abstract: Systems and devices for a ring wearable cover with deformable circumference are described. The removable cover for a wearable ring device may include a ring-shaped surface and one or more mechanical features integrated into the ring-shaped surface and configured to transition between an open state and a closed state. In the closed state, the ring-shaped surface may be configured to extend around a full circumference of the wearable ring device. In some cases, a diameter of the removable cover in the open state is greater than a diameter of the removable cover in the closed state, and the diameter of the removable cover in the closed state is sized to form an interference fit with a surface of the wearable ring device to lock the removable cover onto the wearable ring device when the removable cover is in the closed state.

Abstract: Methods, systems, and devices for a functional cover are described. A removable cover (e.g., a functional cover) for a wearable ring device (e.g., a ring wearable) may include one or more electrical components positioned at least partially within the removable cover. The removable cover may further include a first electrical component exposed to an external surface of the removable cover, the first electrical component configured to contact (e.g., physical and electrically contact) a second electrical component of the wearable ring device, such as when the removable cover is in a mounted state on the wearable ring device. The first electrical component may be further configured to transfer electrical current, data, or both, between the one or more electrical components of the removable cover and one or more additional electrical components of the wearable ring device.

Abstract: Methods, systems, and devices for a functional cover are described. A removable cover (e.g., a functional cover) for a wearable ring device (e.g., a ring wearable) may include one or more electrical components positioned at least partially within the removable cover. In some cases, the functional cover may wireless connect with the ring wearable. The removable cover may further include a first inductive component within the removable cover, where the first inductive component is configured to wirelessly communicate with a second inductive component of the wearable ring device when the removable cover is in a mounted state on the wearable ring device. The first inductive component of the removable cover may be configured to transfer electrical current, data, or both, between the one or more electrical components of the removable cover and one or more additional electrical components of the wearable ring device.

Abstract: Methods, systems, and devices for operating a wearable device are described. A wearable device may include a first portion that has one or more electrical contacts and at least one sensor configured to measure one or more physiological parameters of a user. The first portion may also include one or more detachment features configured to detachably couple a removable battery with the first portion. The removal battery may be coupled with one or more electrical contacts for the removable battery. The removable battery may also be coupled with one or more counterpart detachment features that are configured to interface with the one or more detachment features of the first portion such that the one or more electrical contacts for the removable battery connect with the one or more electrical contacts of the first portion when the removable battery is detachably coupled with the first portion.

Abstract: An apparatus for directing fluid into and out of a fluidic device includes two or more fluid prime channels connected to a fluid inlet of the fluidic device, a flow control valve for each fluid prime channel to control flow between the fluid prime channel and the fluid inlet, one or more outlet channels connected to a fluid outlet of the fluidic device, and a flow control valve for each outlet channel to control flow between the fluid outlet and the associated outlet channel. An apparatus for delivering fluids to a fluid inlet includes a plate that is rotatable about an axis of rotation and a plurality of fluid compartments disposed on the plate, each compartment having a fluid exit port disposed at a common radial distance from the axis of rotation and positioned to align with the fluid inlet as the plate rotates about the axis of rotation.

Abstract: A method is provided comprising loading shells into shell retention chambers of a shell management module, the shells including corresponding reservoirs configured to hold individual quantities of liquid, the shell retention chambers arranged in a predetermined pattern on a platform of the shell management module. The method further comprises orienting discharge ends of the shells along an actuation direction within the shell retention chambers, and covering the discharge ends with closure lids to seal bottoms of the corresponding reservoirs.

Abstract: An apparatus for directing fluid into and out of a fluidic device includes two or more fluid prime channels connected to a fluid inlet of the fluidic device, a flow control valve for each fluid prime channel to control flow between the fluid prime channel and the fluid inlet, one or more outlet channels connected to a fluid outlet of the fluidic device, and a flow control valve for each outlet channel to control flow between the fluid outlet and the associated outlet channel. An apparatus for delivering fluids to a fluid inlet includes a plate that is rotatable about an axis of rotation and a plurality of fluid compartments disposed on the plate, each compartment having a fluid exit port disposed at a common radial distance from the axis of rotation and positioned to align with the fluid inlet as the plate rotates about the axis of rotation.

Abstract: An apparatus for directing fluid into and out of a fluidic device includes two or more fluid prime channels connected to a fluid inlet of the fluidic device, a flow control valve for each fluid prime channel to control flow between the fluid prime channel and the fluid inlet, one or more outlet channels connected to a fluid outlet of the fluidic device, and a flow control valve for each outlet channel to control flow between the fluid outlet and the associated outlet channel. An apparatus for delivering fluids to a fluid inlet includes a plate that is rotatable about an axis of rotation and a plurality of fluid compartments disposed on the plate, each compartment having a fluid exit port disposed at a common radial distance from the axis of rotation and positioned to align with the fluid inlet as the plate rotates about the axis of rotation.

Abstract: A method is provided comprising loading shells into shell retention chambers of a shell management module, the shells including corresponding reservoirs configured to hold individual quantities of liquid, the shell retention chambers arranged in a predetermined pattern on a platform of the shell management module. The method further comprises orienting discharge ends of the shells along an actuation direction within the shell retention chambers, and covering the discharge ends with closure lids to seal bottoms of the corresponding reservoirs.

Abstract: A liquid storage and delivery mechanism and method of use are provided. The mechanism comprises shells that include corresponding reservoirs to hold individual quantities of liquid. The shells include filling ends and discharge ends. The filling ends include fill ports that open to the reservoirs in order to receive the corresponding quantity of liquid. The discharge ends are covered with closure lids to seal bottoms of the corresponding reservoirs. A shell management module is provided comprising a cover and a platform. The platform includes shell retention chambers to receive corresponding shells. The shell retention chambers are arranged in a predetermined pattern on the platform. The shell retention chambers are to orient shells with the fill ports exposed from the platform. The cover is mounted onto the platform to close the fill ports. The shells are to move individually, along the shell retention chambers, between non-actuated and actuated positions.

Abstract: An apparatus for directing fluid into and out of a fluidic device includes two or more fluid prime channels connected to a fluid inlet of the fluidic device, a flow control valve for each fluid prime channel to control flow between the fluid prime channel and the fluid inlet, one or more outlet channels connected to a fluid outlet of the fluidic device, and a flow control valve for each outlet channel to control flow between the fluid outlet and the associated outlet channel. An apparatus for delivering fluids to a fluid inlet includes a plate that is rotatable about an axis of rotation and a plurality of fluid compartments disposed on the plate, each compartment having a fluid exit port disposed at a common radial distance from the axis of rotation and positioned to align with the fluid inlet as the plate rotates about the axis of rotation.

Abstract: There is provided inter alia an aqueous solution composition comprising insulin glargine as an active ingredient and an amino acid selected from aspartic acid and glutamic acid as a stabilising agent, wherein the amino acid is present at a concentration of 1-50 mM.

Abstract: There is provided inter alia an aqueous solution composition comprising insulin glargine as an active ingredient and triethylenetetramine (TETA) as a stabilising agent.

Abstract: A polymer comprising a repeat unit of formula (I): wherein R1 in each occurrence is independently H or a substituent, and the two groups R1 may be linked to form a ring; R2 in each occurrence is independently a substituent; Ar1 in each occurrence is independently an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents; R3 in each occurrence is independently a substituent; each n independently is 0, 1, 2 or 3 with the proviso that at least one n=1; and each m is independently 0 or 1. The polymer may be a light-emitting 103 of an organic light-emitting device.

Abstract: A liquid storage and delivery mechanism and method of use are provided. The mechanism comprises shells that include corresponding reservoirs to hold individual quantities of liquid. The shells include filling ends and discharge ends. The filling ends include fill ports that open to the reservoirs in order to receive the corresponding quantity of liquid. The discharge ends are covered with closure lids to seal bottoms of the corresponding reservoirs. A shell management module is provided comprising a cover and a platform. The platform includes shell retention chambers to receive corresponding shells. The shell retention chambers are arranged in a predetermined pattern on the platform. The shell retention chambers are to orient shells with the fill ports exposed from the platform. The cover is mounted onto the platform to close the fill ports. The shells are to move individually, along the shell retention chambers, between non-actuated and actuated positions.

Abstract: A polymer comprising a repeat unit of formula (I): wherein R1 in each occurrence is independently H or a substituent, and the two groups R1 may be linked to form a ring; R2 in each occurrence is independently a substituent; Ar1 in each occurrence is independently an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents; R3 in each occurrence is independently a substituent; each n independently is 0, 1, 2 or 3 with the proviso that at least one n=1; and each m is independently 0 or 1. The polymer may be a light-emitting 103 of an organic light-emitting device.