Abstract: A fluid injector system for delivering a multi-phase fluid injection to a patient and methods of fluid delivery is disclosed. Methods of creating and using a multi-aspect fluid path impedance model of the injector system are used. Modeling and adjustment of factors that affect impedance and prevent or reduce backflow, reduce the likelihood of fluid flow rate spikes and provide more accurate flow rates and mixing ratios of fluids may be repeated or happen essentially continuously during an injection. The adjustments may be determined before the injection or determined and/or adjusted during the injection. The determination may include sensor feedback commonly used in injectors such as pressure and position feedback as well as other sensors. In all cases, the user can be notified of adjustments through on-screen notices and/or through the recordation of the injection data by a control device of the injector at the conclusion of the injection.

Abstract: A spectrophotometric instrument (1) for the quantitative measurement of an optical property of an analyte in a sample cell (4). The spectrophotometric instrument (1) comprises an instrument housing (2a, 2b) for a source of electromagnetic radiation and a detector; an optical pot (3) for accommodating the sample cell (4) having a flexible restraining cradle (6).

Abstract: Embodiments of the present invention described herein relate to vacuum cleaners. The vacuum cleaners described herein can include a motor, a lid, a collection receptacle, and at least one support member to permit access to the interior of the vacuum cleaner. Also described herein are vacuum cleaners having a motor, a lid, a collection receptacle, and an accessory holder that can be pivotally mounted to the collection receptacle to permit access to the contents thereof.

Abstract: Devices and methods for vascular navigation, assessment, treatment and/or diagnosis are disclosed. The system generally comprises an elongate body sized for introduction and translation through a catheter lumen. One or more openings may be located at or in proximity to a distal end of the elongate body and a sensor is positioned at or in proximity to the distal end. The sensor is configured to measure at least one parameter of a mixture of a first fluid and a second fluid after the first fluid is emitted from the openings and into the second fluid when the distal end is advanced beyond a distal opening of the catheter lumen. A controller in communication with the sensor is configured to receive a signal indicative of the at least one parameter and is further configured to obtain a position of the sensor within a body of a subject based upon the signal.

Abstract: A surgical access device and methods for facilitating access through an incision or wound to a surgical site in a patient's body comprising an inferior retention member, a superior retention member, and a pliable membrane therebetween. The pliable membrane includes a base layer, a permeable membrane attached to the base layer, and a fluid delivery region disposed between the layers. The fluid delivery region is fluidly coupled to a fluid source. The fluid is delivered to the surgical site via the permeable membrane. The inferior retention member provides for fluid removal from the surgical site. Methods are provided for use of the surgical access device to retract tissue and deliver fluid to the tissue from the pliable membrane.

Abstract: A surgical access device and methods for facilitating access through an incision or wound to a surgical site in a patient's body comprising an inferior retention member, a superior retention member, and a pliable membrane therebetween. The pliable membrane includes a base layer, a permeable membrane attached to the base layer, and a fluid delivery region disposed between the layers. The fluid delivery region is fluidly coupled to a fluid source. The fluid is delivered to the surgical site via the permeable membrane. The inferior retention member provides for fluid removal from the surgical site. Methods are provided for use of the surgical access device to retract tissue and deliver fluid to the tissue from the pliable membrane.

Abstract: The present invention relates to an electroanalytical instrument for determining by amperometry (eg chronoamperometry) the presence or quantity (eg concentration) of an analyte in an aqueous sample, comprising a sealed housing, an elongate pivotal arm mounted on the sealed housing, wherein the elongate pivotal arm houses a potentiostat, and a pivotal forearm joined pivotally to the elongate pivotal arm, which is connectable to an electrochemical sensor. By flexing the pivotal forearm, the electrochemical sensor may be electrically connected to the potentiostat. By flexing the elongate pivotal arm, the electrochemical sensor is immersed in the aqueous sample in the sealed housing.

Abstract: A system for controlling one or more aggregate processing plants which utilizes a common control module disposed on each plant, where the module is produced to be functionally identical to, interchangeable with and replaceable by the same model of the model from the same manufacture. When several plants are configured to be controlled by the common control module, and the modules are interconnected by a canbus, then each module can be used to control the entire system of plants and individual other plants in the system without the need for any central control hub and spoke control lines extending directly to each of the plants. The system can be easily (with activation of just one button) set up to allow for common control of the various plants.

Abstract: A tripod appliance has a device comprising a support with three hubs and three legs rotationally attached to the hubs permitting the legs to be rotated from a standing position to a storage position. Each hub has a support contour and each leg has a clip and a clip contour, each clip defining a standing position and a storage position. First and second rotations about the hub effect changes between standing and storage positions. Rotation from standing to storage positions is deterred by an interference of the clip contour interfering with the support contour. Each leg is configured so that a force applied to the leg at a distance from the hub overcomes the interference, thereby effecting rotational displacement.

Abstract: A crowd control lighting system includes a plurality of light emitting diode (LED) lights. Each light is configured to emit a flashing directional light beam to at least partially overlap and illuminate a common illumination zone. The common illumination zone is selectable from a plurality of illumination zones and is exterior to a dark zone not illuminated by the plurality of lights.

Abstract: A system and associated method for manipulating tissues and anatomical or other structures in medical applications for the purpose of treating diseases or disorders or other purposes. In one aspect, the system includes a delivery device configured to deploy and implant anchor devices for creating continuous defects or indentations in lobes of a prostate.

Abstract: A crowd control lighting system includes a plurality of light emitting diode (LED) lights. Each light is configured to emit a flashing directional light beam to at least partially overlap and illuminate a common illumination zone. The common illumination zone is selectable from a plurality of illumination zones and is exterior to a dark zone not illuminated by the plurality of lights.

Abstract: A tripod appliance has a device comprising a support with three hubs and three legs rotationally attached to the hubs permitting the legs to be rotated from a standing position to a storage position. Each hub has a support contour and each leg has a clip and a clip contour, each clip defining a standing position and a storage position. First and second rotations about the hub effect changes between standing and storage positions. Rotation from standing to storage positions is deterred by an interference of the clip contour interfering with the support contour. Each leg is configured so that a force applied to the leg at a distance from the hub overcomes the interference, thereby effecting rotational displacement.

Abstract: A visual aid for landing helicopters includes a plurality of weighted bases and a plurality of lights designed such that they can identify a helicopter landing zone during nighttime or during the bright sunlight. The components of the visual aid are designed to provide rapid identification of the landing zone, whether the pilot of the helicopter is flying with his unaided eye or with typical night vision goggles. The weighted bases have a large surface area and are coated with a highly visible fluorescent paint. The lights are designed to emit light having wavelengths, intensities and beam patterns which will not overwhelm night vision goggles but which will be acceptably visible to pilots flying without night vision goggles. The lights and weighted bases are color-coded such that they identify both the perimeter of the landing zone and the wind direction within the landing zone.

Abstract: A lighting device includes one or more lighting assemblies, each having a light emitting diode (LED) emitting a light and a lens. Each lens has an impinging light surface refracting a first segment of the light to emerge from an exterior surface of the lens and a second segment of the light intersecting a side mirror whereat it is reflected to emerge from the lens. The lens collecting a large portion of the light emitted by the LED projects an evenly illuminating elongated light beam and appears evenly illuminating when viewed from an exterior location.

Abstract: A lighting device includes an electrical circuit for energizing an LED light source. The electrical circuit is configured to: have a target relationship between two illuminating operational parameters of the LED, connect the LED to a power source, energize the LED with a voltage waveform to effect a current waveform, determine a magnitude of each of the two operational parameters, determine an operational relationship between the two operational parameters, compare the target relationship with the operational relationship, determine a difference between the target relationship and the operational relationship and respond to the difference by adjusting the voltage waveform such that it changes one or both operational parameters to bring the operational relationship towards the target relationship.

Abstract: A power factor correction circuit includes an inductor L1, a diode D1, a switch Q3 and a controller 24. An input voltage Vin is applied to the inductor L1 which is cyclically discharged through the diode D1 by the operation of the switch Q3. The switch Q3 is controlled by the controller 24 which varies the on period of the switch Q3, during which the inductor is charged, for adjusting an output voltage Vbus towards a target value Vbus_target. The method includes obtaining an indication of the inductor L1 reaching a discharged state in response to the switch being in an off state. The controller 24 monitors at least one of the switch on period Ton and the switch off period Toff to identify when the input voltage Vin is an alternating voltage AC input, and when it is likely to be a non-alternating voltage DC input. When a non alternating voltage is detected, steps may be taken to reduce interference.

Abstract: Auxiliary lighting is added to military vehicles in response to civilian national emergencies permitting the vehicles to function as emergency vehicles. The auxiliary lights are attached to the military vehicles by employing military standard optical devices such as reflectors already mounted on the vehicles. This method of attaching the auxiliary lights avoids unacceptable modification of the military vehicles and reduces the complexity and time required to install the auxiliary lights. The attachment method also facilitates removal of the auxiliary lighting. Therefore temporary auxiliary lighting can be added to and removed from the military vehicle with a minimal use of tools or time. The auxiliary lighting is positioned on the military vehicle such that the emitted light beams are directed as required for the function the light is expected to perform. The auxiliary lights can be floodlights, warning lights, clearance or marker lights.

Abstract: A light emitting diode (LED) lighting device including a circuit configured to energize a surface mount LED lamp having an integral LED heat sink with a source of power. The LED lighting device further includes a printed circuit board having a first side, a second side and a metallic thermal connector extending from the first side to the second side. The surface mount LED lamp is attached to the first side with the LED heat sink in contact with the metallic thermal connector. The LED lighting device further includes a fixture configured to hold the printed circuit board and position a metallic heat sink on the second side of the printed circuit board in contact with the metallic thermal connector.

Abstract: A light emitting diode (LED) lighting device including a circuit configured to energize a surface mount LED lamp having an integral LED heat sink with a source of power. The LED lighting device further includes a printed circuit board having a first side, a second side and a metallic thermal connector extending from the first side to the second side. The surface mount LED lamp is attached to the first side with the LED heat sink in contact with the metallic thermal connector. The LED lighting device further includes a fixture configured to hold the printed circuit board and position a metallic heat sink on the second side of the printed circuit board in contact with the metallic thermal connector.