Abstract: A heat exchange device includes two end caps each having two openings, a barrel connected to and disposed between the end caps, a heat exchanger disposed in the barrel, a condensing unit and an electric unit mounted respectively to the end caps. The heat exchanger includes two conduit members spaced apart by a gap, a passage unit and a vortex chamber. The condensing unit absorbing and dissipating heat of the fluid. The electric unit is co-movable with at least a portion of one of the conduit members such that a dimension of the gap is adjusted, so as to change the temperature of the fluid flowing out of the device.

Abstract: An absorber and a method of forming an absorber. The absorber may include a semiconductor absorption structure doped with dopants of a first conductivity type. The absorber may also include a semiconductor substrate doped with dopants of a second conductivity type different from the first conductivity type. The absorber may further include a dielectric layer between the semiconductor absorption structure and the semiconductor substrate. The absorber may additionally include a buried semiconductor structure included in a cavity of the dielectric layer, the buried semiconductor structure doped with dopants of the first conductivity type.

Abstract: A heat exchange device includes two end caps each having two openings, a barrel connected to and disposed between the end caps, a heat exchanger disposed in the barrel, a condensing unit and an electric unit mounted respectively to the end caps. The heat exchanger includes two conduit members spaced apart by a gap, a passage unit and a vortex chamber. The condensing unit absorbing and dissipating heat of the fluid. The electric unit is co-movable with at least a portion of one of the conduit members such that a dimension of the gap is adjusted, so as to change the temperature of the fluid flowing out of the device.

Abstract: A condensing device includes two end caps each having two openings, a barrel connected to and disposed between the end caps, a heat exchanger disposed in the barrel, and a condensing unit mounted to one end cap. The heat exchanger includes a passage and a vortex chamber each cooperating with a respective one of the openings of each of the end caps to define a flow channel to permit fluid to flow therethrough. A cooling chip module of the condensing unit includes a heat absorbing plate disposed at an end proximate to the one end cap, and a heat dissipating plate disposed at an opposite end.

Abstract: A cyclone filtering device includes first and second filters. The first filter includes a first filtering tube defining a first turbulence room, and has a coupling cover communicated with the first turbulence room and disposed for allowing passage of fluid, and a barrel seat defining a dust collecting room that is communicated with the first turbulence room. The second filter includes a second filtering tube defining a second turbulence room that is communicated with the first turbulence room, two end covers having an end opening that is communicated with the second turbulence room, and a capture member disposed in the second turbulence room and disposed for capturing substances that are entrained in the fluid.

Abstract: A cannula includes at least one opening at a distal tip, and further includes multiple fenestrations that are maintainable in position substantially immediately or slightly beyond a site or point of cannula entry into a vessel. The fenestrations, in combination with the opening(s) at the cannula's distal tip, enable the simultaneous perfusion of blood into the cannulated vessel along multiple directions, including opposing or anti-parallel blood flow directions relative to a central axis of the cannulated vessel. During a medical procedure (e.g., an extra-corporeal membrane oxygenation (ECMO) procedure) blood introduced into a vessel such as the femoral artery by way of the cannula can thus exit the cannula in a manner that provides concurrent blood flow in a first direction towards the heart and a second direction away from the heart.

Abstract: A membrane for covering a peripheral surface of a stent is provided, the membrane including a plurality of line openings formed therein. Each line opening may be a straight line opening, for example in the form of a slit, a curved line opening, or any line opening of a suitable shape or curvature, e.g. U-shaped or V-shaped. Blood pressure opens the slits to allow blood to flow through the membrane, while curved line openings create a flap in the membrane that can open to allow blood to pass through. According to further embodiments of the present invention, a method of forming a membrane on a stent and a device for use in a blood vessel are provided.

Abstract: Defining proximal as toward the heart and distal as away from the heart, a sheath includes a proximal opening and multiple fenestrations maintainable in position slightly beyond a site or point of sheath entry into a vessel by way of an anchoring assembly having a set of radially displaceable anchoring elements configured for abutting a superficial vessel wall. The fenestrations and/or anchoring element(s) are arranged obliquely or non-obliquely around peripheral portions of the sheath. The sheath can receive blood from a pumping source at a proximal opening, and channel the blood toward, to, and through the fenestrations. The fenestrations, in combination with the proximal opening, enable the perfusion of blood into the cannulated vessel in a set of distal directions for perfusing a distal tissue or organ. Flow of blood out of fenestrations directs blood distally towards the limb, head, or other distal region, mitigating the risk of or preventing ischemia.

Abstract: A cannula includes a first segment configured to reside entirely within a vessel. The first segment includes a proximal exit opening disposed nearer to the heart, and multiple fenestrations disposed distally away from the proximal exit opening near a cannulation site. The fenestrations in combination with the proximal exit opening enable simultaneous perfusion of blood into the cannulated vessel along proximal and distal directions. During a medical procedure, blood introduced into a vessel (e.g., the femoral artery) by way of the cannula can exit the cannula in a manner that provides concurrent blood flow in a first set of directions proximally towards the heart and a second set of directions distally away from the heart. Radially displaceable anchoring elements positionable adjacent to the vessel's superficial wall aid retention of the first segment in the vessel. The fenestrations and/or anchoring elements can be arranged obliquely around portions of the cannula's circumference.

Abstract: A mold vacuum valve device includes a first mold having a mounting hole formed therethrough, a second mold connected to the first mold, and a sliding block. The second mold has a shaping cavity, a runner passage in fluid communication with a side of the shaping cavity, and a vacuum passage in fluid communication with an opposite side of the shaping cavity. The shaping cavity is defined by a serrated bottom wall surface, and cooperates with the mounting hole to define an accommodating space. The sliding block is disposed movably within the accommodating space, and has a head portion and a body portion. The head portion has a serrated side surface complementary to the serrated bottom wall surface. The head portion cooperates with the second mold to define a shaping clearance.

Abstract: A modular cyclonic separator comprises separating tubes each including an air-guiding impeller that is fixed coaxially in an outer tube body and that is formed with spiral channels for causing an airflow, which flows radially into the separating tube, to follow a cyclonic flow pattern through a separating chamber in the separating tube, thereby separating some of solid impurities from the airflow within the separating chamber. Each separating tube is capable of connecting selectively with one or two three-port valves to form a first or second filtration module, in which the airflow passes through a fluid passage in the one three-port valve or one of the two three-port valves prior to entering the separating tube.

Abstract: A modular cyclonic separator comprises separating tubes each including an air-guiding impeller that is fixed coaxially in an outer tube body and that is formed with spiral channels for causing an airflow, which flows radially into the separating tube, to follow a cyclonic flow pattern through a separating chamber in the separating tube, thereby separating some of solid impurities from the airflow within the separating chamber. Each separating tube is capable of connecting selectively with one or two three-port valves to form a first or second filtration module, in which the airflow passes through a fluid passage in the one three-port valve or one of the two three-port valves prior to entering the separating tube.

Abstract: A mold vacuum valve device includes a first mold having a mounting hole formed therethrough a second mold connected to the first mold, and a sliding block. The second mold has a shaping cavity, a runner passage in fluid communication with a side of the shaping cavity, and a vacuum passage in fluid communication with an opposite side of the shaping cavity. The shaping cavity is defined by a serrated bottom wall surface, and cooperates with the mounting hole to define an accommodating space. The sliding block is disposed movably within the accommodating space and has a head portion and a body portion. The head portion has a serrated side surface complementary to the serrated bottom wall surface. The head portion cooperates with the second mold to define a shaping clearance.

Abstract: A cannula includes at least one opening at a distal tip, and further includes multiple fenestrations that are maintainable in position substantially immediately or slightly beyond a site or point of cannula entry into a vessel. The fenestrations, in combination with the opening(s) at the cannula's distal tip, enable the simultaneous perfusion of blood into the cannulated vessel along multiple directions, including opposing or anti-parallel blood flow directions relative to a central axis of the cannulated vessel. During a medical procedure (e.g., an extra-corporeal membrane oxygenation (ECMO) procedure) blood introduced into a vessel such as the femoral artery by way of the cannula can thus exit the cannula in a manner that provides concurrent blood flow in a first direction towards the heart and a second direction away from the heart.

Abstract: A membrane for covering a peripheral surface of a stent is provided, the membrane including a plurality of line openings formed therein. Each line opening may be a straight line opening, for example in the form of a slit, a curved line opening, or any line opening of a suitable shape or curvature, e.g. U-shaped or V-shaped. Blood pressure opens the slits to allow blood to flow through the membrane, while curved line openings create a flap in the membrane that can open to allow blood to pass through. According to further embodiments of the present invention, a method of forming a membrane on a stent and a device for use in a blood vessel are provided.

Abstract: In a machining method and apparatus, a machining station is disposed spacedly between first and second material-feeding stations. A slider for being mounted with target first and second workpieces fed respectively from the first and second material-feeding stations thereon is movable between a first position, where the machining station machines the target second workpiece, and simultaneously, a next first workpiece fed from the first material-feeding station is mounted on the slider as the target first workpiece, and a second position, where the machining station machines the target first workpiece, and simultaneously, a next second workpiece fed from the second material-feeding station is mounted on the slider as the target second workpiece.

Abstract: A dust separator includes: a partitioner mounted in a shell and including an upper cup part; and a multi-cone unit supported on the upper cup part and including a plurality of cones, each of which has an upper end portion formed with a tangent channel-forming notch and having a circumferentially-extending segment and a tangentially-extending segment. The circumferentially-extending segment has an end face disposed at one side of the tangent channel-forming notch. The tangentially-extending segment has an inner face that confines the other side of the tangent channel-forming notch. The tangentially-extending segment of each of the cones sidewisely joins an end section of the circumferentially-extending segment of an adjacent one of the cones.

Abstract: A thumb drive with a miniaturized memory storage assembly package that employs an extended chassis structure to support the miniaturized memory device within an ergonomically designed casing that is also simple to manufacture. The miniaturized memory storage assembly has a flexible latch projection extending from its side that mates with a complimentary latch aperture in the side of the connector housing. Downwardly projecting tongues in the top surface of the connector housing also prevent movement of the assembly within the housing. The elongated platform chassis extending rearwardly from the USB connector housing snaps in place in an ergonomically designed thumb drive case.