| http://www.w3.org/ns/prov#value | - FIELD OF THE INVENTIONThis invention generally relates to catheters such as angiographic catheters or guide catheters for the placement of intracoronary devices within a patient's vascular system.BACKGROUND OF THE INVENTIONPercutaneous transluminal coronary angioplasty (PTCA) requires manipulation of a catheter from a position outside a patient's body through extended portions of the patient's art
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