Coating processes – Medical or dental purpose product; parts; subcombinations;... – Particulate or unit-dosage-article base
Patent
1986-07-15
1987-04-14
Lusignan, Michael R.
Coating processes
Medical or dental purpose product; parts; subcombinations;...
Particulate or unit-dosage-article base
427387, 4273885, 427435, A01N 102, A61M 500, B05D 118, B05D 302
Patent
active
046577726
ABSTRACT:
An introducer sheath includes a connector body having an inlet and an outlet; a flexible tube for intravenous use at the outlet, including a helical coiled spring having a plurality of coils, each coil spaced from an adjacent coil, and a thin cylindrical wall prepared from a protective coating composition completely surrounding the spring to define an inner and an outer wall surface, the portion of the cylindrical wall surrounding each coil having a first thickness and the portion of the cylindrical wall between the spaced coils having a second, smaller thickness, with the inner and outer wall surfaces being indented thereat, the coating composition comprising a thermoplastic polymeric material dissolved in a solvent solution, the composition having a solids content ranging from about 4% to about 18%, and said solution comprising a solvent selected from the group consisting of tetrahydrofuran, dioxane, methyl ethyl ketone, dimethylformamide, cyclohexane, and mixtures thereof, formed on a helical coiled spring by dipping the latter therein and then drying at room temperature; and a valve assembly including a first elastic membrane having a central aperture, and a second elastic membrane in sealing contact with the first elastic membrane and having a slit extending therethrough at an angle to the direction of fluid flow in the introducer sheath, the slit being in fluid communication with the central aperture.
REFERENCES:
patent: 4100309 (1978-07-01), Micklus
patent: 4265928 (1981-05-01), Braun
patent: 4592920 (1986-06-01), Murtfeldt
Jackson David A.
Lusignan Michael R.
LandOfFree
Introducer sheath assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Introducer sheath assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Introducer sheath assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1784557