초록 ▼

Disclosed herewithin is an apparatus for fabricating a stent which involves processing a tubular member whereby no connection points to join the edges of a flat pattern are necessary. The process includes the steps of: a) preparing the surface of a tubular member, b) coating the outside surface of t

Disclosed herewithin is an apparatus for fabricating a stent which involves processing a tubular member whereby no connection points to join the edges of a flat pattern are necessary. The process includes the steps of: a) preparing the surface of a tubular member, b) coating the outside surface of the tubular member with a photo-sensitive resist material, c) placing the tubular member in an apparatus designed to simultaneously rotate the tubular member while passing a specially configured photographic frame negative between a light source and the tubular member, d) exposing the tubular member to a photoresist developer, e) rinsing the excess developer and uncured resist from the exposed tubular member, f) sealing the inner lumen of the tubular member, and g) treating the tubular member with a chemical or electro-chemical process to remove uncovered metal. By modifying the photographic negative, this process can be employed to fabricate a virtually unlimited number of stent designs and configurations.

대표청구항 ▼

Disclosed herewithin is an apparatus for fabricating a stent which involves processing a tubular member whereby no connection points to join the edges of a flat pattern are necessary. The process includes the steps of: a) preparing the surface of a tubular member, b) coating the outside surface of t

Disclosed herewithin is an apparatus for fabricating a stent which involves processing a tubular member whereby no connection points to join the edges of a flat pattern are necessary. The process includes the steps of: a) preparing the surface of a tubular member, b) coating the outside surface of the tubular member with a photo-sensitive resist material, c) placing the tubular member in an apparatus designed to simultaneously rotate the tubular member while passing a specially configured photographic frame negative between a light source and the tubular member, d) exposing the tubular member to a photoresist developer, e) rinsing the excess developer and uncured resist from the exposed tubular member, f) sealing the inner lumen of the tubular member, and g) treating the tubular member with a chemical or electro-chemical process to remove uncovered metal. By modifying the photographic negative, this process can be employed to fabricate a virtually unlimited number of stent designs and configurations. nsor as set forth in claim 1, wherein the at least one electrode is fabricated in a direct chemical vacuum deposition process or in a plasma deposition process.20. The biosensor as set forth in claim 1, wherein the sample inlet14 is modified with a surfactant or by additives to improve the mobility of the whole blood sample through the porous membrane.21. The biosensor as set forth in claim 1, wherein the sample inlet14 is modified in morphology and size by applying grooves to the sample inlet or the hole.22. The biosensor as set forth in claim 1, wherein the pretreatment layer19 is provided with a sample inlet for removing various interfering materials, whereby the quantification of samples of interest can be improved in measurement convenience, accuracy and precision.23. A biosensor with porous membranes, wherein said biosensor is a differential face-to face type with a three-electrode system, comprising: (a) a lower substrate10;(b) a plurality of spaced first circuit connectors; formed on the lower substrate10,(c) a counter electrode12 and a reference electrode13, both being coated on the first circuit connectors9 at predetermined regions;(d) an insulator15 covering the surface of the lower substrate10 with the exception of a portion of the lower substrate containing the counter electrode12 the reference electrode13, and a terminal region of the lower substrate10;(e) a porous membrane16 located on the counter electrode12 and the reference electrode13, the porous membrane16 having the same dimension as the exposed portion of the counter electrode12 and a reference electrode13;(f) an adhesive17 deposited over the insulator15(g) a working electrode11 atop the porous membrane16;(h) a second circuit connector9′ extending to the working electrode11;(i) upper substrate10′ covering second insulator15′ that exposes the working electrode11;(j) a plurality of differential circuit connectors90 formed below the lower substrate10;(k) a differential counter electrode120 and a differential reference electrode130;(l) a differential insulator150 formed on the differential circuit connectors90;(m) a differential porous membrane160;(n) a differential adhesive170 below the differential insulator150;(o) a differential working electrode110 on the differential porous membrane160;(p) a second differential circuit connector90 with the differential adhesive170;(q) a differential second insulator150; and(r) a differential upper substrate100, each of the differential elements of (i) through (r) functioning in the same manner as that of its corresponding elements of (a) through (j).24. A biosensor with porous membranes, wherein said biosensor is a differential face-to-face type with a two-electrode system, comprising: (a) a lower substrate10;(b) a plurality of