摘要:
A fiber distribution system includes one or more fiber distribution hubs (FDHs) that provide an interface at a termination panel between incoming fibers routed from a central office and outgoing fibers routed to network subscribers. Termination modules can be incrementally added to the termination panel. The FDH can include one or more optical splitter modules that split an optical signal into two or more signals. The optical splitter modules can be incrementally added along with one or more storage modules. The subscriber termination panel, optical splitters, and storage modules can be provided on a swing frame.
摘要:
An ablation device includes an electrode having an enclosed lumen, and a heat sink located within the lumen. An ablation device includes an elongated body, an electrode secured to the elongated body, and a heat sink connected to the electrode, wherein the heat sink is confined by the electrode and at least a portion of the elongated body. An ablation device includes an electrode, and a heat sink connected to the electrode, wherein the heat sink is not connected to a pump.
摘要:
Systems, methods and devices are provided for activation of an adjustable annuloplasty device. The devices may include a catheter system for percutaneously activating an adjustable annuloplasty device, including a handle assembly, a shaft assembly having at least one fluid lumen, and a distal element. The shaft assembly extends between the handle assembly and the distal element, the distal element being in fluid communication with the handle assembly via the at least one fluid lumen. The distal element includes an elongated core having a first port and an expandable member. The core extends through the expandable member and the expandable member is movable between a collapsed position and an inflated position. The distal element has a preset shape in the inflated position, having a long axis that is curvilinear. A surface of the distal element extends along the long axis and is configured to conform to a curvilinear surface of the annuloplasty device. In some arrangements, the annuloplasty device includes a ring, and the circumference of the annuloplasty device is a circumference of the ring.
摘要:
An electro-mechanical brake assembly comprising a brake disk stack having a center axis; and a plurality electro-mechanical actuators for applying braking pressure to the brake disk stack. The actuators are circumferentially arranged around the center axis, and each actuator includes a housing, a linearly movable ram, a screw for linearly moving the ram, a nut mounted for rotation in the housing and operatively engaged with the screw such that rotation of the nut effects linear movement of the screw for urging the ram into forceful engagement with the brake disk stack, an electric motor for rotating the nut, and an anti-rotation device for preventing rotation of the screw relative to the housing when the nut is rotated to effect linear movement of the screw. The foregoing arrangement provides for greater stroke than prior art actuators without sacrificing durability and performance.
摘要:
A medical probe kit and method of treating abnormal tissue within a patient is provided. The kit comprises a cannula having a shaft, a lumen extending through the cannula shaft, and a first ablation electrode disposed on the distal end of the cannula shaft. The cannula may have a handle mounted to the proximal end of the cannula shaft, and an optional fluid delivery port on the handle in fluid communication with the cannula lumen. The kit further comprises an ablation probe configured to be removably disposed within the delivery cannula lumen. The ablation probe has a shaft and a second ablation electrode disposed on a distal end of the probe shaft, wherein the first and second ablation electrodes are arranged in a bipolar configuration. Preferably, the ablation probe is slidable relative to the delivery cannula, whereby the distance between the first and second ablation electrodes can be adjusted. Thus, the delivery cannula can be used to interchangeably deliver the ablation probe and other medical elements, such as a biopsy needle, obturator, and chemotherapeutic agent.
摘要:
A medical probe assembly, tissue treatment system, and method are provided for ablating tissue. The probe assembly comprises an elongated member and electrode elements mechanically coupled to the distal end of the elongated member. The electrode elements are configurable as two bipolar electrode pairs with a common electrode element. At least one of the electrode elements comprises a plurality of electrodes (such as, e.g., needle electrodes) radially extendable from the elongated member. An ablation source, such as a radio frequency source, can be connected to the probe assembly in order to convey ablation energy to the electrode pairs, either simultaneously or sequentially.
摘要:
An apparatus is disclosed for flatproofing a tire and wheel assembly with a flexible, lightweight foam-fill by supplying at least two polyurethane reactive materials to a static mixer. The static mixer mixes the reactants, and a nucleating gas is supplied to the mixed reactants in the static mixer to form a liquid reactant mixture with entrained gas. The reactant mixture is injected into the tire and wheel assembly where the mixture reacts and foams replacing the air in the tire with a flexible, lightweight semi-open cell foam-fill. The foam-filled tire and wheel assembly is then allowed to cure.
摘要:
An apparatus and method is disclosed for converting an input signal having frequency related information sustained over a first duration of time into an output signal sustained over a second duration of time at substantially the same first frequency by adding or subtracting to the effective wave length of the output signal. Preferably, the signals are converted in digital form with samples added or subtracted to frequency convert the signal.
摘要:
An electro-mechanical brake assembly comprising a brake disk stack having a center axis; and a plurality electro-mechanical actuators for applying braking pressure to the brake disk stack. The actuators are circumferentially arranged around the center axis, and each actuator includes a housing, a linearly movable ram, a screw for linearly moving the ram, a nut mounted for rotation in the housing and operatively engaged with the screw such that rotation of the nut effects linear movement of the screw for urging the ram into forceful engagement with the brake disk stack, an electric motor for rotating the nut, and an anti-rotation device for preventing rotation of the screw relative to the housing when the nut is rotated to effect linear movement of the screw. The foregoing arrangement provides for greater stroke than prior art actuators without sacrificing durability and performance.
摘要:
A medical probe kit and method of treating abnormal tissue within a patient is provided. The kit comprises a cannula having a shaft, a lumen extending through the cannula shaft, and a first ablation electrode disposed on the distal end of the cannula shaft. The cannula may have a handle mounted to the proximal end of the cannula shaft, and an optional fluid delivery port on the handle in fluid communication with the cannula lumen. The kit further comprises an ablation probe configured to be removably disposed within the delivery cannula lumen. The ablation probe has a shaft and a second ablation electrode disposed on a distal end of the probe shaft, wherein the first and second ablation electrodes are arranged in a bipolar configuration. Preferably, the ablation probe is slidable relative to the delivery cannula, whereby the distance between the first and second ablation electrodes can be adjusted. Thus, the delivery cannula can be used to interchangeably deliver the ablation probe and other medical elements, such as a biopsy needle, obturator, and chemotherapeutic agent.