Polymer blends for use in making medical devices including cathe

Details Polymer blends for use in making medical devices including cathe Polymer blends for use in making medical devices including cathe

1995-06-07

1996-10-15

Short, Patricia A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525177, 525183, 525184, 525425, 525432, 525444, 604 96, 604280, A61M 2510, A61M 2500

Patent

active

055655238

ABSTRACT:
A combination of polymeric components provides desired characteristics in forming medical instruments such as catheters and balloons for dilatation catheters. For example, a balloon material is formed from a blend of polymeric components, including a first crystalline polymeric component and a second softening polymeric component. Where the first two components are generally incompatible, the balloon material can also include a third compatibilizing agent to facilitate blending the first two polymeric components together. The first polymeric component can be a branched or straight chain polyamide having a molecular weight of at least about 5000, or a polyester prepared from aromatic dicarboxylic acids having 8 to 14 carbon atoms or aliphatic dicarboxylic acids having from 2 to 12 carbon atoms, and at least one glycol having the formula HO(CH.sub.2).sub.n OH, where n is an integer from 2 to 10, neopentyl glycol and cyclohexane dimethanol. The second polymeric component can be a polyolefin, an ethylene copolymer, a polyester block copolymer, or a polyamide block copolymer. The third polymeric component is preferably an ethylene copolymer having the formula E/X/Y where E is ethylene; X is an .alpha., .beta.-ethylenically unsaturated monomer derived from at least one of alkylacrylate, alkylmethacrylate, alkyl vinyl ether, carbon monoxide, sulfur dioxide, or mixtures thereof, where the alkyl groups contain 1-12 carbon atoms; and Y is an .alpha., .beta.-ethylenically unsaturated monomer containing a reactive group that forms a covalent bond with the first polymeric component. The polymeric blend can be irradiated to enhance the properties of the balloon material, including significantly increasing burst pressures.

REFERENCES:
patent: 28982 (1876-09-01), Crawford et al.
patent: 32983 (1889-07-01), Levy
patent: 3264272 (1966-08-01), Rees
patent: 3317631 (1967-05-01), Rees
patent: 3591659 (1971-07-01), Brinkmann et al.
patent: 3651014 (1972-03-01), Witsiepe
patent: 3718715 (1973-02-01), Crawford et al.
patent: 3763109 (1973-10-01), Witsiepe
patent: 3766146 (1973-10-01), Witsiepe
patent: 3793262 (1974-02-01), Legothetis
patent: 3835098 (1974-09-01), Brown et al.
patent: 3925326 (1975-12-01), Legothetis
patent: 4022748 (1977-05-01), Schlichting et al.
patent: 4026967 (1977-05-01), Flexman, Jr. et al.
patent: 4034013 (1977-07-01), Lane
patent: 4172859 (1979-10-01), Epstein
patent: 4174358 (1979-11-01), Epstein
patent: 4221703 (1980-09-01), Hoeschele
patent: 4254774 (1981-03-01), Boretos
patent: 4275180 (1981-06-01), Clarke
patent: 4284540 (1981-08-01), Iida et al.
patent: 4317764 (1982-03-01), Sheer
patent: 4322335 (1982-03-01), Nield
patent: 4410482 (1983-10-01), Subramanian
patent: 4444817 (1984-04-01), Subramanian
patent: 4490421 (1984-12-01), Levy
patent: 4514620 (1985-04-01), Cheng et al.
patent: 4556705 (1985-12-01), McCready
patent: 4680344 (1987-07-01), Coker
patent: 4737440 (1988-04-01), Uno et al.
patent: 4753980 (1988-06-01), Deyrup
patent: 4758629 (1988-07-01), Deyrup et al.
patent: 4820349 (1989-04-01), Saab
patent: 4871810 (1989-10-01), Saltman
patent: 4906241 (1990-03-01), Noddin et al.
patent: 4906244 (1990-03-01), Pinchuk et al.
patent: 4946743 (1990-08-01), Winter
patent: 4960410 (1990-10-01), Pinchuk
patent: 4963313 (1990-10-01), Noddin et al.
patent: 4964409 (1990-10-01), Tremulis
patent: 5017325 (1991-05-01), Jackowski et al.
patent: 5041125 (1991-08-01), Montano, Jr.
patent: 5091459 (1992-02-01), Howe
patent: 5108415 (1992-04-01), Pinchuk et al.
patent: 5115012 (1992-05-01), Howe
patent: 5128404 (1992-07-01), Howe
patent: 5195969 (1993-03-01), Wang et al.
patent: 5195970 (1993-03-01), Gahara
patent: 5226887 (1993-07-01), Farr et al.
patent: 5260387 (1993-11-01), Boundy et al.
patent: 5270086 (1993-12-01), Hamlin
patent: 5290306 (1994-03-01), Trotta et al.
patent: 5306246 (1994-04-01), Sahatjian et al.
patent: 5315747 (1994-05-01), Solar

Affiliated with

Also associated with

Rating

Polymer blends for use in making medical devices including cathe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymer blends for use in making medical devices including cathe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymer blends for use in making medical devices including cathe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1246926