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    • 3. 发明授权
    • Apparatus for polishing surgical stents
    • 用于抛光外科支架的装置
    • US6086455A
    • 2000-07-11
    • US21763
    • 1998-02-11
    • John J. Frantzen
    • John J. Frantzen
    • A61F2/958A61F2/00A61F2/06A61F2/82B24B31/00B24B31/116B24C3/32B24B7/00B24B9/00
    • A61F2/91A61F2/915B24B31/003B24B31/116B24C3/32B24C3/327B24C5/005A61F2002/068A61F2002/91541A61F2002/91558A61F2002/91566A61F2240/001Y10S623/901Y10S623/921
    • A method for polishing radially expandable surgical stents is disclosed where fluid abrasive media M flows over surfaces of the stent 10 causing the surfaces of the stent 10 to be polished and streamlined. The stent 10 is temporarily provided with cylindrical support ends 20, which are not radially expandable to support the stent 10 during the polishing process. An interior polishing fixture 100 is provided which has cylindrical chambers 135 therein adapted to receive a stent 10 therein. Fluid abrasive media M then flows into bores 108 in the fixture 100 leading to the cylindrical chambers 135 and adjacent the inner diameter surfaces of the stent 10. Surfaces of the stent 10 forming the outer diameter are polished by placing the stent 10 within an exterior polishing fixture 200 which has a cylindrical recess 220 therein. The cylindrical recess 220 has a diameter greater than a diameter of outer surfaces of the stent 10 and includes a cylindrical shaft 270 passing axially through the cylindrical recess 220 upon which the stent 10 is located. Slanted bores 208 pass through walls of the exterior polishing fixture 200 and into the cylindrical recess 220, directing the abrasive media M adjacent exterior surfaces of the stent 10 and causing polishing of the exterior surfaces of the stent 10. The direction of abrasive media M flow can be reversed to make streamlining of segments of the stent 10 occur in a symmetrical fashion. After polishing of the stent 10 is completed, the cylindrical support ends 20 are removed and the stent 10 is ready for implantation and radial expansion within a body lumen L. When polished and streamlined, the radially expandable surgical stent 10 more effectively supports a body lumen L without excessive thrombus, restenosis and other medical complications.
    • 公开了一种用于抛光径向可扩张的外科支架的方法,其中流体研磨介质M流过支架10的表面,导致支架10的表面被抛光和流线型化。 支架10临时设置有圆柱形支撑端20,其在径向可扩张以在抛光过程中支撑支架10。 提供了内部抛光固定器100,其具有适于在其中容纳支架10的圆柱形腔室135。 流体研磨介质M然后流入定位装置100中的通孔108中的孔108,其通向圆柱形腔135并邻近支架10的内径表面。通过将支架10置于外部抛光中来形成外径的支架10的表面被抛光 夹具200,其中具有圆柱形凹部220。 圆柱形凹部220的直径大于支架10的外表面的直径,并且包括圆柱形轴270,其轴向地穿过支架10所在的圆柱形凹部220。 倾斜孔208穿过外部抛光夹具200的壁并进入圆柱形凹槽220,将研磨介质M引导到支架10的外表面附近,并引起支架10的外表面的抛光。研磨介质M的流动方向 可以逆转以使支架10的段的精简以对称的方式发生。 在完成支架10的抛光之后,移除圆柱形支撑端20,并且支架10准备好在体腔L内进行植入和径向扩张。当抛光和流线型时,可径向扩张的手术支架10更有效地支撑体腔 L无血栓过多,再狭窄等医疗并发症。
    • 5. 发明授权
    • Apparatus and method for polishing lumenal prostheses
    • 用于抛光腔内假体的装置和方法
    • US5788558A
    • 1998-08-04
    • US556341
    • 1995-11-13
    • Enrique J. Klein
    • Enrique J. Klein
    • B24B31/116B24B31/00
    • B24B31/116
    • Methods and apparatus for deburring and rounding edges and polishing surfaces of radially expansible lumenal prostheses, such as stents and grafts, are provided. A stent (2) is mounted onto a polishing apparatus (58) and a flowable abrasive slurry is extruded through the apparatus in abrading contact with inner and outer surfaces (28, 29) and circumferential openings (30) in the stent. To polish the cut surfaces (32) and edges (34, 36) surrounding the openings, the abrasive slurry is introduced into an inner lumen (26) of the stent and extruded radially outward through the openings. The inner and outer wall surfaces 28, 29 are preferably pre-polished prior to cutting the slot pattern (i.e., openings 30) in the stent.
    • 本发明提供了可扩展的腔内假体(如支架和移植物)的去毛刺和边缘抛光表面的方法和装置。 将支架(2)安装在抛光装置(58)上,并且可流动的磨料浆料通过与装置内的内外表面(28,29)和周向开口(30)磨擦接​​触而被挤出。 为了研磨围绕开口的切割表面(32)和边缘(34,36),磨料浆料被引入到支架的内腔(26)中,并且通过开口径向向外挤出。 优选地,在切割支架内的狭槽图案(即,开口30)之前,内外表面28,29优选地被预先抛光。