Abstract: A heterojunction bipolar transistor structure is provided, including a substrate and a multi-layer structure formed on the substrate. The multi-layer structure includes a current clamping layer, and the current clamping layer can be disposed in a collector layer, disposed in a sub-collector layer, or interposed between a collector layer and a sub-collector layer. An electron affinity of the current clamping layer is less than an electron affinity of an epitaxial layer formed on the current clamping layer.

Abstract: Devices and methods are disclosed for managing and/or treating body tissues obstructing a hollow body lumen, including the prostatic lobe tissues obstructing the urethra, for example conditions including benign prostatic hyperplasia (BPH), bladder outlet obstruction (BOO), benign prostatic obstruction (BPO) and associated lower urinary tract symptoms (LUTS). A prostatic implant deployment and delivery system may have a controlled release mechanism, a handle mechanism and an irrigation system. The controlled release mechanism includes a disengageable connection between a pusher member and the prostatic implant with a control member. The handle mechanism includes a plunger for advancing the pusher member and an actuator for withdrawing the control member. The irrigation system may define two fluid paths.

Abstract: A motor sleeve is applied to a motor housing and a motor driver housing. The motor sleeve includes a sleeve base, a second fixing structure, a second coupling structure, a plurality of base fins, a sleeve chassis, a plurality of chassis fins, and a third fixing structure. The second fixing structure is disposed on an inner surface of the sleeve base and correspondingly fixed to a first fixing structure of the motor housing. The sleeve base is installed on a lateral portion of the motor housing. The base fins are separately disposed on an outer surface of the sleeve base and corresponding to a first coupling structure of the motor driver housing. The motor driver housing is coupled to the sleeve base by the first and second coupling structures. The third fixing structure is correspondingly fixed to a fourth fixing structure of the motor housing.

Abstract: A motor sleeve is applied to a motor housing and a motor driver housing. The motor sleeve includes a sleeve base, a second fixing structure, a second coupling structure and a plurality of base fins. The sleeve base includes an outer surface and an inner surface. The second fixing structure is disposed on the inner surface and located corresponding to a first fixing structure of the motor housing. The sleeve base is fixed to the motor housing by the first and second fixing structures. The sleeve base is installed on a side portion of the motor housing. The second coupling structure is disposed on the outer surface. The base fins are separately disposed on the outer surface and located corresponding to a first coupling structure of the motor driver housing. The motor driver housing is coupled to the sleeve base by the first and second coupling structures.

Abstract: A motor device includes a motor, a motor driver housing, a motor control circuit board, a heat dissipation device, a heat isolation element and at least one fixing element. The motor includes fins arranged at a lateral portion of the motor. The motor driver housing includes a bottom surface. A gap is provided between the bottom surface and the lateral portion. The heat dissipation device is disposed at an end portion of the motor. The heat dissipation device includes a heat dissipation housing and a single fan. The heat dissipation housing includes an inlet and a first outlet. The first outlet faces the gap. The fan is disposed in the heat dissipation housing. The heat isolation element is connected to the motor and the heat dissipation housing. The fixing element passes through the heat isolation element and fixes the heat dissipation housing to the end portion of the motor.

Abstract: A motor sleeve is applied to a motor housing and a motor driver housing. The motor sleeve includes a sleeve base, a second fixing structure, a second coupling structure and a plurality of base fins. The sleeve base includes an outer surface and an inner surface. The second fixing structure is disposed on the inner surface and located corresponding to a first fixing structure of the motor housing. The sleeve base is fixed to the motor housing by the first and second fixing structures. The sleeve base is installed on a side portion of the motor housing. The second coupling structure is disposed on the outer surface. The base fins are separately disposed on the outer surface and located corresponding to a first coupling structure of the motor driver housing. The motor driver housing is coupled to the sleeve base by the first and second coupling structures.

Abstract: A motor device includes a motor, a motor driver housing, a motor control circuit board, a heat dissipation device, a heat isolation element and at least one fixing element. The motor includes fins arranged at a lateral portion of the motor. The motor driver housing includes a bottom surface. A gap is provided between the bottom surface and the lateral portion. The heat dissipation device is disposed at an end portion of the motor. The heat dissipation device includes a heat dissipation housing and a single fan. The heat dissipation housing includes an inlet and a first outlet. The first outlet faces the gap. The fan is disposed in the heat dissipation housing. The heat isolation element is connected to the motor and the heat dissipation housing. The fixing element passes through the heat isolation element and fixes the heat dissipation housing to the end portion of the motor.

Abstract: A lighting device includes a light emitting unit, a first hollow tube, a second hollow tube, multiple brackets, multiple supports, and a wire. The first hollow tube has a first pivot portion. The second hollow tube has a second pivot portion and is mounted around the first hollow tube. A first end of at least one bracket is pivotally connected to the first pivot portion. A first end of at least one support is pivotally connected to the second pivot portion. The wire passes through the first hollow tube, and one end of the wire is electrically connected to the light emitting unit. A second end of at least one support is configured with a first connecting portion, a second end of at least one bracket is configured with a second connecting portion, and the first connecting portion is pivotally connected to the second connecting portion.

Abstract: A compact bearing system capable of variable load carrying capability and precision motion on a guideway includes a bearing body, a fluid medium, a sealing bearing member and a pressurizing actuation means installed as an integral part of the bearing body. The bearing body includes an internal pocket with an open side facing a surface of said guideway. The fluid medium is contained inside said internal pocket and is in contact with said surface of said guideway on said open side. The sealing bearing member is in contact with said surface of said guideway and seals a clearance between said bearing body and said surface of said guideway to limit leakage of said fluid medium. The pressurizing actuation means pressurizes the confined fluid medium through a small passage, and the pressurized fluid medium carrying a main portion of a load carried on said compact bearing system.

Abstract: A compact bearing system is capable of variable load carrying capability and precision motion on a guideway. The compact bearing system includes a bearing body, a fluid medium, a sealing bearing member and a pressurizing action means. The bearing body includes an internal pocket with an open side facing a surface of said guideway. The fluid medium is contained inside said internal pocket and is contacted with said surface of said guideway on said open side. The sealing bearing member is contacted with said surface of said guideway and seals a clearance between said bearing body and said surface of said guideway to limit leakage of said fluid medium. The pressurizing actuation means pressurizes the confined fluid medium through a small passage by the principle of connected vessels, and the pressurized fluid medium carrying main portion of load carried on said compact bearing system.