Apparatus and method for polishing lumenal prostheses

Details Apparatus and method for polishing lumenal prostheses Apparatus and method for polishing lumenal prostheses

1995-11-13

1998-08-04

Rose, Robert A.

Abrading

Abrading process

Utilizing fluent abradant

451113, 451 61, B24B 3100

Patent

active

057885583

ABSTRACT:
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.

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