Medical patches and processes for producing same

Details Medical patches and processes for producing same Medical patches and processes for producing same

1987-05-11

1988-06-14

Lusignan, Michael R.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

427 2, 4273899, 428253, 428343, 428354, 428913, 604304, B05D 302, B32B 700, D04B 100, C09U 702

Patent

active

047511338

ABSTRACT:
A layer or member particularly useful as part of a medical patch such as an anisotropic wound dressing, a transdermal skin patch or an incise medical drape and the processes for forming such a member. The member is comprised of a crosslinked thermoset aliphatic polyurethane elastomer. The elastomer is the reaction product of (1) isophorone diisocyanate, (2) a macroglycol and (3) a chain terminator having both hydroxyl and vinyl functional groups. Polycarbonate glycols or polyetherglycols having a molecular weight of 500-2500 Daltons are preferred macroglycols and isophorone diamine is a preferred chain terminator. In one embodiment, a member or polyurethane layer for use as a wound dressing or an incise medical drape is produced by applying a film-forming solution or dispersion as a thin film to a supporting release paper and treating the film to drive off the liquids and to activate a crosslinker. In another embodiment, a member for an anisotropic medical patch is produced by sandwiching a knitted reinforcing fabric in the elastomer. When used as a transdermal skin patch or a drug dispensing wound dressing, a layer of drug dispensing film containing pharmacoactive agents may be applied to the medical patch, and when appropriate, the medical patch may be coated with a pressure sensitive adhesive.

REFERENCES:
patent: 3062210 (1962-11-01), Scholl
patent: 3342183 (1967-09-01), Edenbaum
patent: 3374134 (1968-03-01), Waldman
patent: 3526224 (1970-09-01), Potts
patent: 3567119 (1971-03-01), Wilbert et al.
patent: 3570482 (1971-03-01), Emoto et al.
patent: 3598122 (1971-08-01), Zaffaroni
patent: 3598123 (1971-08-01), Zaffaroni
patent: 3731683 (1973-05-01), Zaffaroni
patent: 3734097 (1973-05-01), Zaffaroni
patent: 3742951 (1973-07-01), Zaffaroni
patent: 3842832 (1974-10-01), Wideman et al.
patent: 3870593 (1975-03-01), Elton et al.
patent: 3881473 (1975-05-01), Corvi et al.
patent: 3949742 (1976-04-01), Nowakowski
patent: 3975567 (1976-08-01), Lock
patent: 4034751 (1977-07-01), Hung
patent: 4038239 (1977-07-01), Coyner et al.
patent: 4051848 (1977-10-01), Levine
patent: 4144317 (1979-03-01), Higuchi et al.
patent: 4156067 (1979-05-01), Gould
patent: 4189467 (1980-02-01), von Bittera et al.
patent: 4209605 (1980-06-01), Hoy et al.
patent: 4215684 (1980-08-01), Westip
patent: 4233969 (1980-11-01), Lock et al.
patent: 4236550 (1980-12-01), Braun et al.
patent: 4264757 (1981-04-01), Park
patent: 4306551 (1981-12-01), Hymes et al.
patent: 4307717 (1981-12-01), Hymes et al.
patent: 4308184 (1981-12-01), Thoma et al.
patent: 4321117 (1982-03-01), Kaetsu et al.
patent: 4331135 (1982-05-01), Westip
patent: 4336243 (1982-06-01), Sanvordeker
patent: 4340043 (1982-07-01), Seymour
patent: 4391106 (1983-07-01), Schefer et al.
patent: 4411754 (1983-10-01), Kaetsu et al.
patent: 4425395 (1984-01-01), Negishi et al.
patent: 4447590 (1984-03-01), Szycher
patent: 4460369 (1984-07-01), Seymour
patent: 4476697 (1984-10-01), Schafer et al.
patent: 4483759 (1984-11-01), Szycher et al.
patent: 4496535 (1985-01-01), Gould et al.

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