摘要:
A stent includes a stent body in which struts are joined mutually while intersecting and which is formed tubularly as a whole, and a drug coat layer on the outer surface of the struts. The strut has a bend which is deformed as the stent body expands/contracts in the radial direction, and the drug coat layer with which the bend is coated is formed in such a manner that the drug coat layer is mountain-shaped in a cross-section perpendicular to the axis of the strut and the ridgeline of the mountain shape extends in a wavy shape along the longitudinal direction of the strut. The drug coat layer deforms relatively easily without using plasticizer as the stent deforms and is not so susceptible to causing problems such as peeling, destruction, damage or falling off of the drug coat later.
摘要:
A stent is configured to facilitate directional proliferation of cells on the inner surface of the stent to relatively quickly coat the stent surface with the cells so that the onset of late stent thrombosis or restenosis can be reduced or prevented. The stent includes a cylindrical stent main body having openings at both ends and extending along the longitudinal direction between the openings at both ends. A coating layer is provided on the inner surface of the stent main body and contains a substance having a cell adhesion ability to promote the adhesion of cells. The coating layer is formed by arranging multiple linear coating parts, each extending linearly in a striped manner.
摘要:
An electronic device testing apparatus for conducting a test by pressing input/output terminals of an IC to be tested against sockets (50), comprising a pusher (30) provided at least with a pusher base (34) provided to be able to approach and separate with respect to said sockets (50), a lead pusher base (35) fixed to said pusher base (34), a pusher block (31) for pressing against said sockets (50) by contacting said IC to be tested from an opposite face of said socket (50), a load base (32) attached with the pusher block (31), and two springs (36, 38) for giving an elastic force in the direction of pressing the IC to be tested to the pusher block (31) via the load base (32), wherein the load base (32) and the springs (36, 38) are sandwiched with the lead pusher base (35) and the pusher base (34), and the pusher block (31) is detachably attached to the load base (32) via an opening portion provided to the pusher base (34).
摘要:
A drive mechanism include a movable element which has at least one bearing arm; a linear guide shaft for linearly guiding the movable element without rotating; a driving device driving the movable element linearly along the linear guide shaft; a driven member driven, by the driving device, in a direction parallel to the linear guide shaft; a first guide hole formed on the bearing arm; a second guide hole formed on the driven member, the first and second guide holes being identical in size and in cross sectional shape; a tubular bearing member fitted into the first and second guide holes, the linear guide shaft being fitted completely through the tubular bearing member to be freely slidable therein; and a retaining device formed on the tubular bearing member and the driven member to prevent the tubular bearing member from moving relative to the driven member.
摘要:
A device testing apparatus including a connection terminal to which an electronic device under test is detachably attached, a pusher for pushing the electronic device in the direction of the connection terminal so as to connect the electronic device to the connection terminal, and a cooling unit for cooling the electronic device. As the cooling unit, an element cooling the device using electricity is for example used. The cooling unit includes a cooling medium blower for blowing a cooling medium around the electronic device and heat exchange projections or depressions for raising the cooling efficiency by blowing a cooling medium. In the device testing apparatus, even if the electronic device generates heat on its own during testing, the electronic device is cooled through the pusher, connection terminals, or socket, so the effect of the heat generated by the electronic device is canceled out and the electronic device can be tested at the predetermined temperature as prescribed in the specification.
摘要:
A damping and mounting structure for a motor includes a bracket to which a motor is mounted, the bracket being provided with a plurality of through-holes; a housing having a driven element which is driven by the motor on the bracket; a plurality of threaded holes and positioning recesses coaxial to the threaded holes, provided in the housing; a plurality of cylindrical damper bushes made of an elastic material, mounted in the through-holes; a plurality of retainer bushes made of a material harder than the damper bushes and inserted in the damper bushes, the retainer bushes being provided, at the front ends thereof, with positioning projections which are inserted into the positioning recesses; and a plurality of set screws which extend through the retainer bushes from a surface of the bracket and are screwed into the threaded holes of the housing.
摘要:
An IC testing apparatus excels in giving a DUT a unified press force toward a contact portion, which carries out a test by pressing input/output terminals of the DUT against contact pins 51 of a test head, and comprises a pusher base 34 provided movably and close to but away from the contact pins 51, a pusher block 31 mounted on the pusher base for pressing the DUT, and a spring 36 for giving an elastic force to the pusher block in the pressing direction.
摘要:
A method for purifying glyoxylates includes (1) a coarse distillation process in which a crude glyoxylate in which water coexists is, in a film form, continuously subjected to coarse distillation, and (2) an azeotropic dehydration process in which the crude glyoxylate purified through the coarse distillation process is subjected to azeotropic dehydration in the presence of an azeotropic agent such as propyl acetate. By this method, high-purity glyoxylates can be efficiently and easily obtained at lower costs.
摘要:
The present invention provides a process for producing a ketone represented by a general formula RCOR' (wherein R is a C.sub.1 -C.sub.17 alkyl group, a C.sub.7 -C.sub.12 aralkyl group, a C.sub.7 -C.sub.12 aryl group or a C.sub.5 -C.sub.8 cycloalkyl group; R' is a C.sub.1 -C.sub.17 alkyl group, a C.sub.7 -C.sub.12 aralkyl group, a C.sub.7 -C.sub.12 aryl group or a C.sub.5 -C.sub.8 cycloalkyl group; R and R' may the same), which process comprises reacting a carboxylic acid represented by a general formula RCOOH (wherein R has the same definition as given above) with a carboxylic acid represented by a general formula R'COOH (wherein R' has the same definition as given above) in a gas phase in the presence of a catalyst containing at least either of MgO and CaO. The process allows for production of an intended ketone at a high yield at high productivity.
摘要:
A fluid pipe coupling comprises a plug and a socket, at least one of which includes a cylindrical body member having an end portion adapted to engage the other and a caulking end portion, and an adapter member having a connector end portion adapted to be connected with a pipe member and a caulking end portion. One of the caulking end portions has a cylindrical caulking portion, while the other has a cylindrical caulking receiving portion adapted to engage the caulking portion. The caulking receiving portion has a plurality of annular grooves and annular projections therebetween on the peripheral surface thereof. The caulking portion and the caulking receiving portion engage each other with a seal member interposed therebetween. These two portions are caulked so that the cylindrical body member and the adapter member are coupled integrally with each other.