Abstract: Disclosed embodiments of introducer devices provide hemostatic sealing and allow a delivery catheter to be inserted through the introducer seals without the use of a separate loader device that covers a medical device that is mounted on the catheter. Some disclosed introducers comprise a housing, a distal sheath extending distally from the housing and adapted to be inserted into a patient's vasculature, a distal hemostatic seal mounted within the housing and a proximal hemostatic seal mounted within the housing, and a slidable tube positioned within the housing that is movable longitudinally relative to the distal hemostatic seal between a proximal position and a distal position, wherein in the proximal position a distal end of the tube is positioned proximal to the distal hemostatic seal with the distal hemostatic seal closed, and wherein in the distal position the distal end of the tube extends through the distal hemostatic seal.

Abstract: A rotating control device can include a latch assembly with a lock ring that permits displacement of an inner mandrel in one longitudinal direction, and prevents displacement of the inner mandrel in an opposite longitudinal direction. Another rotating control device can include a latch assembly and an equalization valve having an open configuration in which fluid communication is permitted between an exterior and an interior of the rotating control device through the equalization valve, the latch assembly changing from a latched to an unlatched configuration only when the equalization valve is in the open configuration. A method of installing a rotating control device can include releasing a running tool from the rotating control device by producing relative rotation between components of the running tool.

Abstract: The invention relates to a method and system that implements a peer-to-peer transaction using a QR Code. The invention may be realized by a mobile device that comprises: a memory component that stores customer data; and a computer processor, coupled to the memory, programmed to: send a request for a QR Code for a transaction, wherein the request comprises an amount and a time period; responsive to the request, receive the QR Code on the mobile device; present the QR Code to a payer for the transaction; and receive a payment based on the QR Code, from the payer, where the payment is received in an account associated with the QR Code.

Abstract: Described herein are low-profile electrodes for use with an angioplasty shockwave catheter. A low-profile electrode assembly may have an inner electrode, an insulating layer disposed over the inner electrode such that an opening in the insulating layer is aligned with the inner electrode, and an outer electrode sheath disposed over the insulating layer such that an opening in the outer electrode sheath is coaxially aligned with the opening in the insulating layer. This layered configuration allows for the generation of shockwaves that propagate outward from the side of the catheter. In some variations, the electrode assembly has a second inner electrode, and the insulating layer and outer electrode may each have a second opening that are coaxially aligned with the second inner electrode. An angioplasty shockwave catheter may have a plurality of such low-profile electrode assemblies along its length to break up calcified plaques along a length of a vessel.

Abstract: A telecommunications antenna comprising a plurality of unit cells each including at least one radiator which transmits RF energy within a bandwidth range which is a multiple of another radiator. The radiators are proximal to each other such that a resonant condition may be induced into the at least one radiator upon activation of the other radiator. At least one of the radiators is segmented into capacitively-connected radiator elements to suppress a resonance response therein upon activation of the other of the radiator.

Abstract: Conveying a replaceable assembly between latched and unlatched configurations with an outer housing can include connecting the replaceable assembly to a running tool, so the assembly can be conveyed with the running tool, and disconnecting the assembly from the running tool. At least one of the connecting and disconnecting steps can include actuating an iris mechanism. A pressure control device can include an annular seal and a latch that releasably secures the annular seal relative to an outer housing, the latch including a grip member that grips a surface and prevents relative rotation. Another pressure control device can include an annular seal connected to and rotatable with an inner mandrel, and a bearing that permits relative rotation between the annular seal and the outer housing. A structure rotates with the inner mandrel, the structure including a flow inductive profile exposed to a bearing lubricant flow path.

Abstract: Methods, systems and apparatus for detecting object location and generating alerts are disclosed herein. An example disclosed method includes determining an assigned area for an object being handled by a loader; detecting a first location of the loader; determining whether the first location corresponds to the assigned area for the object; and in response to the first location not corresponding to the assigned area for the object, generating a first output indicative of a difference between the first location and the assigned area for the object.

Abstract: A radio frequency (RF) device includes a spatial orientation sensor and logic circuit configured to determine spatial orientation of the RF device relative to a reference position or relative to a RF transmitter. In particular, the RF device determines a distance between the RF receiver and the RF transmitter based on a received signal strength of the signal and a determined spatial orientation of the RF device, by determining an orientation compensation value from a stored orientation compensation profile and determining a resulting compensated received signal strength. The RF device is thereby able to determine distance in an orientationally-invariant manner.

Abstract: A rotating control device can include a latch assembly with a lock ring that permits displacement of an inner mandrel in one longitudinal direction, and prevents displacement of the inner mandrel in an opposite longitudinal direction. Another rotating control device can include a latch assembly and an equalization valve having an open configuration in which fluid communication is permitted between an exterior and an interior of the rotating control device through the equalization valve, the latch assembly changing from a latched to an unlatched configuration only when the equalization valve is in the open configuration. A method of installing a rotating control device can include releasing a running tool from the rotating control device by producing relative rotation between components of the running tool.

Abstract: The present invention is directed towards methods for therapeutically targeting circulating tumor cells during hemodialysis.

Abstract: An electronic device may be provided with an antenna for receiving signals in first and second ultra-wideband communications bands. The antenna may include a first arm that radiates in the first band and a second arm that radiates in the second band. The antenna may be fed by a stripline. A microstrip may couple the stripline to the first and second arms and may be configured to match the impedance of the stripline to the impedance of the first and second arms in the first and second bands, respectively. Sets of antennas tuned to different frequencies may be fed by the same transmission line and may collectively exhibit a relatively wide bandwidth. A conductive shielding layer or other conductive components may be layered over the antennas to mitigate cross-polarization interference at the antennas.

Abstract: Provided are compounds having a tetradentate structure of that are useful as emitters in OLED applications.

Abstract: An electronic device may be provided with an antenna for receiving signals in first and second ultra-wideband communications bands. The antenna may include a first arm that radiates in the first band and a second arm that radiates in the second band. The antenna may be fed by a stripline. A microstrip may couple the stripline to the first and second arms and may be configured to match the impedance of the stripline to the impedance of the first and second arms in the first and second bands, respectively. Sets of antennas tuned to different frequencies may be fed by the same transmission line and may collectively exhibit a relatively wide bandwidth. A conductive shielding layer or other conductive components may be layered over the antennas to mitigate cross-polarization interference at the antennas.

Abstract: A well system can include a pressure control device including a releasable assembly, and a running tool including a lock mechanism operable in response to a change in a fluid flow rate through the running tool. A method of retrieving a releasable assembly of a pressure control device can include engaging a running tool with a latch, applying a force from the running tool to deactivate the latch, and changing a fluid flow rate through the running tool. A pressure control device can include a releasable assembly having a passage, and a latch releasably securing the releasable assembly in an outer housing, the latch including a piston having set and unset positions, and the piston being displaceable toward the unset position in response to pressure applied to a port in the outer housing, or in response to displacement of a profile disposed in the passage.

Abstract: A method can include positioning a tubular string in a riser string including an outer housing of a pressure control device and an annular seal operable to prevent flow through an annulus between the tubular and riser strings, the tubular string including an equalization valve and a running tool operable to convey a releasable assembly of the pressure control device through the riser string, and opening the equalization valve, thereby permitting fluid communication between the annulus and a flow passage extending longitudinally through the tubular string. A system can include a riser string including an annular blowout preventer with an annular seal, a tubular string including a running tool and an equalization valve releasably attachable to a releasable assembly including an annular seal, and the equalization valve selectively preventing and permitting fluid communication between a flow passage of the tubular string and an annulus between the annular seals.

Abstract: A delivery sheath includes an outer tubular layer and an initially folded inner tubular layer. When an implant passes therethrough, the outer tubular layer expands and the inner tubular layer unfolds into an expanded lumen diameter. The sheath may also include selectively placed longitudinal support rods that mediate friction between the inner and outer tubular layers to facilitate easy expansion, thereby reducing the push force needed to advance the implant through the sheath's lumen.

Abstract: Some embodiments are directed to techniques for building single layer or multi-layer structures on dielectric or partially dielectric substrates. Certain embodiments deposit seed layer material directly onto substrate materials while others use an intervening adhesion layer material. Some embodiments use different seed layer and/or adhesion layer materials for sacrificial and structural conductive building materials. Some embodiments apply seed layer and/or adhesion layer materials in what are effectively selective manners while others apply the materials in blanket fashion. Some embodiments remove extraneous material via planarization operations while other embodiments remove the extraneous material via etching operations. Other embodiments are directed to the electrochemical fabrication of multilayer mesoscale or microscale structures which are formed using at least one conductive structural material, at least one conductive sacrificial material, and at least one dielectric material.

Abstract: Methods for preparing sterilized baclofen solutions include adjusting the pH to below a desired pH, and steam sterilizing the solution with adjusted pH, which results in the solution having the desired pH. Such solutions may also have low concentrations of 4-CPP. Injectable baclofen solutions having greater than 2 mg/mL baclofen include between 5 mM and 25 mM of a phosphate or sulfate species. The solution has an ionic strength equivalent of about 1.5 M NaCl. The present application also provides baclofen formulations for use in treating spasticity, brain injury, cerebral palsy, spinal cord injury, cervical injury, multiple sclerosis, thoracic injury, or withdrawal symptoms.

Abstract: A delivery sheath includes an elastic outer tubular layer and an inner tubular layer having a thick wall portion integrally connected to a thin wall portion. The inner tubular layer can have a compressed or folded condition wherein the thin wall portion folds onto an outer surface of the thick wall portion under urging of the elastic outer tubular layer. When an implant passes therethrough, the outer tubular layer stretches and the inner tubular layer unfolds into an expanded lumen diameter. Once the implant passes, the outer tubular layer again urges the inner tubular layer into the compressed condition with the sheath reassuming its smaller profile. The sheath may also include selectively placed longitudinal rods that mediate friction between the inner and outer tubular layers to facilitate easy expansion and collapse, thereby reducing the push force needed to advance the implant through the sheath's lumen.

Abstract: Disclosed herein are expandable introducer sheaths and methods of making and using the same. The sheaths minimize trauma to a patient's vasculature by allowing for temporary expansion of a portion of the sheath to accommodate passage of a delivery system for an implant, then return to a non-expanded state after the passage of the device. The sheath includes a foldable inner member having a detached flap structure at its distal tip that facilitates expansion of the sheath lumen to increased diameters, and an elastomeric distal end that reduces push and retrieval forces therethrough. The sheath can include a hemostasis seal on its proximal end to prevent the leakage of blood out of the sheath and prevent ballooning of outer layer of the sheath.