Method and means for coating medical cannulas

Details Method and means for coating medical cannulas Method and means for coating medical cannulas

1998-10-08

2000-09-12

Meeks, Timothy

Coating processes

Medical or dental purpose product; parts; subcombinations;...

Flexible web, sheet, film, or filament base

427 228, 427429, 4274301, 427355, 427358, 427371, 118404, B05C 106, B05D 118, A61L 3100

Patent

active

061174807

ABSTRACT:
Medical cannulas are typically provided with a silicone coating to improve incision performance. In order to produce a thin, continuous and even coating layer, silicone oil is provided at one side of an elastic foil and the foil is penetrated by the uncoated cannula from an opposite side. During this operation the cannula is wetted by the silicone oil. During withdrawal of the cannula from the foil, excess silicone oil is removed from the cannula and an even, particle-free thin coating which has no bulge- or bead-forming tendency during incision is obtained. Subsequently, the silicone coating is dried.

REFERENCES:
patent: 4330571 (1982-05-01), Stovall et al.
patent: 4624817 (1986-11-01), Gusack et al.
patent: 5242428 (1993-09-01), Palestrant
patent: 5266359 (1993-11-01), Spielvogel
patent: 5676990 (1997-10-01), Wawrzynski
patent: 5820676 (1998-10-01), Bauerle
patent: 5863614 (1999-01-01), Williamitis et al.
"Einstechkrafte medizinischer Kanulen in Labor und Praxis" by P. Kinast, Feinwerktechnik & Messtechnik, vol. 91 (1983), pp. 109 and 110.

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