Abstract: A therapeutic device includes a catheter and a temporary vessel occluder. The vessel occluder has a plurality of elastic strands extending in a tubular arrangement from the first end to the second, a primer on the strands, and a polymer filter coating over the primer. The primer is unevenly distributed to the plurality of elastic strands between the plurality of elastic strands. The filter coated is applied over the primer and on the strands. A portion of the polymer coating may be removed.

Abstract: Apparatuses, systems, and methods comprising acoustically absorptive air ducts comprising an internally positioned structure component as an endoskeleton and an air impervious inner layer, and an acoustically absorptive foam outer layer, environmental control systems comprising such air ducts, and vehicles incorporating such environmental control systems are disclosed with methods for manufacture and installations are disclosed.

Abstract: A vascular treatment device for use in a vessel includes a catheter and a microvalve occluder. The occluder includes braided elastic strands, each with a proximal portion, a central portion, and a distal portion, that are fixed to the outer surface of the catheter. The elastic strands. In an embodiment, the distal portions are attached circumferentially about an outer surface of the catheter at a location toward the distal end of the catheter, the central portions extend proximal and radially outward from the distal end, and the proximal portions of the strands are inverted back radially within the central portions are and coupled circumferentially about the outer surface of the catheter at a location proximally displaced from the distal portions. The proximal portion of the microvalve is coated in a fluid-impermeable membrane, and the distal portions of the strands are substantially uncoated.

Abstract: A trigger assembly for a firearm is disclosed wherein the firearm includes a receiver, a safety selector and a hammer. The trigger assembly includes a trigger having a pivot axis, a front hook which is constructed and arranged to move with trigger rotation, a rear hook which is cooperatively arranged with the front hook and a spring which is positioned between the front hook and the rear hook. The front hook and the trigger are constructed and arranged relative to the safety selector and relative to the hammer in order to allow the hammer to be recocked from an upright position with the safety selector in a “SAFE” position. This particular construction provides a trigger assembly which is constructed and arranged as a two-stage, drop-in trigger assembly which is compliant with the European Standard for an M4/M16 (AR) platform.

Abstract: A filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing includes an alignment tab disposed on the second housing end. The alignment tab protrudes from the second housing end towards the first housing end. A filter element is positioned within the housing. The filter element includes a first endcap, a second endcap, and filter media positioned between and extending axially between the first endcap and the second endcap. The filter media defines a central opening extending axially therein. An alignment notch is disposed on the second endcap, the alignment notch protruding from the second endcap toward the first endcap.

Abstract: A filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing includes an alignment tab disposed on the second housing end. The alignment tab protrudes from the second housing end towards the first housing end. A filter element is positioned within the housing. The filter element includes a first endcap, a second endcap, and filter media positioned between and extending axially between the first endcap and the second endcap. The filter media defines a central opening extending axially therein. An alignment notch is disposed on the second endcap, the alignment notch protruding from the second endcap toward the first endcap.

Abstract: A trigger assembly for a firearm is disclosed wherein the firearm includes a receiver, a safety selector and a hammer. The trigger assembly includes a trigger having a pivot axis, a front hook which is constructed and arranged to move with trigger rotation, a rear hook which is cooperatively arranged with the front hook and a spring which is positioned between the front hook and the rear hook. The front hook and the trigger are constructed and arranged relative to the safety selector and relative to the hammer in order to allow the hammer to be recocked from an upright position with the safety selector in a “SAFE” position. This particular construction provides a trigger assembly which is constructed and arranged as a two-stage, drop-in trigger assembly which is compliant with the European Standard for an M4/M16 (AR) platform.

Abstract: An Internet resource provider (IRP) may authenticate a user and, upon a successful authentication, allow the user to perform one or more actions on webpages that are within an account of the user. The IPR may store the most recent actions of the user in a temporary access code (TAC) database. If the user has a problem, the user may select a TAC button on a webpage within the account of the user. The IPR may generate a TAC, store the TAC in association with the recent activities of the user in the TAC database and transmit the TAC to the user. The user may contact and provide the TAC to a customer support service center. The customer support service center may authenticate the user based solely on the TAC and determine the one or more recent actions of the user in the TAC database. The customer support service center may provide assistance to the user based at least partially on the one or more recent actions of the user.

Abstract: A trigger assembly for a firearm is disclosed wherein the firearm includes a receiver, a safety selector and a hammer. The trigger assembly includes a trigger having a pivot axis, a front hook which is constructed and arranged to move with trigger rotation, a rear hook which is cooperatively arranged with the front hook and a spring which is positioned between the front hook and the rear hook. The front hook and the trigger are constructed and arranged relative to the safety selector and relative to the hammer in order to allow the hammer to be recocked from an upright position with the safety selector in a “SAFE” position. This particular construction provides a trigger assembly which is constructed and arranged as a two-stage, drop-in trigger assembly which is compliant with the European Standard for an M4/M16 (AR) platform.

Abstract: A method of delivering a therapeutic agent into a patient vessel with a delivery device is provided. The delivery device includes an infusion lumen through which the agent is delivered, a vessel occluder that can be operated between a collapsed and an expanded configuration, and when in the expanded configuration occludes the vessel, and a pressure sensor shielded from the effects of turbulent flow at an exit of the infusion lumen. The shield pressure sensor is able to accurately sense pressure in the vessel. The sensed pressure is used to determine a dwell time for the vessel occluder in the expanded configuration.

Abstract: A filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing includes an alignment tab disposed on the second housing end. The alignment tab protrudes from the second housing end towards the first housing end. A filter element is positioned within the housing. The filter element includes a first endcap, a second endcap, and filter media positioned between and extending axially between the first endcap and the second endcap. The filter media defines a central opening extending axially therein. An alignment notch is disposed on the second endcap, the alignment notch protruding from the second endcap toward the first endcap.

Abstract: An atraumatic vessel occlusive system includes a flexible tubular member with an infusion lumen, a vessel occluder mounted at the distal end of the tubular member, and a pressure sensor located within a chamber defined by the occluder. The occluder has a braided construct provided with a fluid impermeable membrane over its proximal portion and a fluid permeable covering over its distal portion. The pressure sensor is adapted to sense pressure within the vessel through the fluid permeable membrane without being subject to the effects of turbulent flow at the exit of the infusion lumen. The accurately sensed pressure can be used to determine a dwell time for the occluder.

Abstract: A trigger assembly for a firearm is disclosed wherein the firearm includes a receiver, a safety selector and a hammer. The trigger assembly includes a trigger having a pivot axis, a front hook which is constructed and arranged to move with trigger rotation, a rear hook which is cooperatively arranged with the front hook and a spring which is positioned between the front hook and the rear hook. The front hook and the trigger are constructed and arranged relative to the safety selector and relative to the hammer in order to allow the hammer to be recocked from an upright position with the safety selector in a “SAFE” position. This particular construction provides a trigger assembly which is constructed and arranged as a two-stage, drop-in trigger assembly which is compliant with the European Standard for an M4/M16 (AR) platform.

Abstract: An Internet resource provider (IRP) may authenticate a user and, upon a successful authentication, allow the user to perform one or more actions on webpages that are within an account of the user. The IPR may store the most recent actions of the user in a temporary access code (TAC) database. If the user has a problem, the user may select a TAC button on a webpage within the account of the user. The IPR may generate a TAC, store the TAC in association with the recent activities of the user in the TAC database and transmit the TAC to the user. The user may contact and provide the TAC to a customer support service center. The customer support service center may authenticate the user based solely on the TAC and determine the one or more recent actions of the user in the TAC database. The customer support service center may provide assistance to the user based at least partially on the one or more recent actions of the user.

Abstract: An Internet resource provider (IRP) may authenticate a user and, upon a successful authentication, allow the user to perform one or more actions on webpages that are within an account of the user. The IPR may store the most recent actions of the user in a temporary access code (TAC) database. If the user has a problem, the user may select a TAC button on a webpage within the account of the user. The IPR may generate a TAC, store the TAC in association with the recent activities of the user in the TAC database and transmit the TAC to the user. The user may contact and provide the TAC to a customer support service center. The customer support service center may authenticate the user based solely on the TAC and determine the one or more recent actions of the user in the TAC database. The customer support service center may provide assistance to the user based at least partially on the one or more recent actions of the user.

Abstract: An Internet resource provider (IRP) may authenticate a user and, upon a successful authentication, allow the user to perform one or more actions on webpages that are within an account of the user. The IPR may store the most recent actions of the user in a temporary access code (TAC) database. If the user has a problem, the user may select a TAC button on a webpage within the account of the user. The IPR may generate a TAC, store the TAC in association with the recent activities of the user in the TAC database and transmit the TAC to the user. The user may contact and provide the TAC to a customer support service center. The customer support service center may authenticate the user based solely on the TAC and determine the one or more recent actions of the user in the TAC database. The customer support service center may provide assistance to the user based at least partially on the one or more recent actions of the user.

Abstract: A trigger assembly for a firearm is disclosed wherein the firearm includes a receiver, a safety selector and a hammer. The trigger assembly includes a trigger having a pivot axis, a front hook which is constructed and arranged to move with trigger rotation, a rear hook which is cooperatively arranged with the front hook and a spring which is positioned between the front hook and the rear hook. The front hook and the trigger are constructed and arranged relative to the safety selector and relative to the hammer in order to allow the hammer to be recocked from an upright position with the safety selector in a “SAFE” position. This particular construction provides a trigger assembly which is constructed and arranged as a two-stage, drop-in trigger assembly which is compliant with the European Standard for an M4/M16 (AR) platform.

Abstract: A trigger assembly for a firearm is disclosed wherein the firearm includes a receiver, a safety selector and a hammer. The trigger assembly includes a trigger having a pivot axis, a front hook which is constructed and arranged to move with trigger rotation, a rear hook which is cooperatively arranged with the front hook and a spring which is positioned between the front hook and the rear hook. The front hook and the trigger are constructed and arranged relative to the safety selector and relative to the hammer in order to allow the hammer to be recocked from an upright position with the safety selector in a “SAFE” position. This particular construction provides a trigger assembly which is constructed and arranged as a two-stage, drop-in trigger assembly which is compliant with the European Standard for an M4/M16 (AR) platform.

Abstract: A trigger assembly for a firearm is disclosed wherein the firearm includes a receiver, a safety selector and a hammer. The trigger assembly includes a trigger having a pivot axis, a front hook which is constructed and arranged to move with trigger rotation, a rear hook which is cooperatively arranged with the front hook and a spring which is positioned between the front hook and the rear hook. The front hook and the trigger are constructed and arranged relative to the safety selector and relative to the hammer in order to allow the hammer to be recocked from an upright position with the safety selector in a “SAFE” position. This particular construction provides a trigger assembly which is constructed and arranged as a two-stage, drop-in trigger assembly which is compliant with the European Standard for an M4/M16 (AR) platform.

Abstract: Disclosed is a bucket that may be used to transport a material. In example embodiments, the bucket may include a barrel configured to hold a material, a gate assembly arranged at a bottom of the barrel, a first control system comprising an electrically controlled valve configured to control the gate assembly, and a second control system configured to control the electrically controlled valve. In example embodiments, the second control system may include a receiver configured to receive a signal from a remote signal generator to control the electrically controlled valve.