Medical devices made from polymer blends containing low melting temperature liquid crystal polymers
AssigneeSciMed Life Systems, Inc.
InventorsLixiao Wang, Jianhua Chen
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Abstract
A medical device, at least a portion of which is composed of a polymeric material in which the polymeric material is a melt blend product of at least two different thermoplastic polymers, one of the thermoplastic polymers being a thermoplastic liquid crystal polymer (LCP) having a melting point of less than 250° C. The portion of the device made from the melt blend may be a catheter body segment or a balloon for a catheter. The LCP blends suitably also include a non-LCP base polymer having a melting point in the range of about 140° C. to about 265° C.
Claims5
A medical device at least a portion of which is composed of a polymeric material in which the polymeric material is a melt blend product of at least two different thermoplastic polymers, one of the thermoplastic polymers being a thermoplastic liquid crystal polymer (LCP) having a melting point of less than 250° C., and another of the thermoplastic polymers being a base polymer,
- said base polymer is a thermoplastic polyamide elastomer or a thermoplastic polyester elastomer, is present in said melt blend in an amount of from about 85 to about 99.5 weight percent and has a melting point in the range of about 140° C. to about 265° C.;
- and
- said LCP is present in an amount of 0.5 to about weight 8 percent.
Dependencies are inferred from the claim text.