Multilayer extrusion of angioplasty balloons

Details Multilayer extrusion of angioplasty balloons Multilayer extrusion of angioplasty balloons

1991-07-09

1993-12-14

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Nonself-supporting tubular film or bag

428 369, 428 3692, 606192, 604 96, A61M 2902

Patent

active

052700860

ABSTRACT:
A method of producing laminated inflatable, substantially inextensible expander members having composite properties enhancing their use on intravascular catheters, such as angioplasty catheters is described. Diverse polymeric compounds of differing properties are coextruded to create a multilayer parison. The parison is subsequently drawn and expanded in a blow molding operation to yield an expander member exhibiting enhanced properties including lubricity, burst-strength, limited radial expansion, bondability, and rupture characteristics.

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