Patent ID: 8721588
Filing Date: 2014-05-13
Classification: A61B,A61M

Abstract:
1. A guiding catheter, comprising: an elongated wall structure extending along a length of the catheter defining an inner lumen and an outer lumen, said inner lumen having a noncircular cross-sectional shape, the elongated wall structure defining the inner lumen including a plurality of torque transmittal guidance walls having a flat cross-sectional surface, said plurality of torque transmittal guidance walls being made of a different material than a remainder of said elongated wall structure, said plurality of torque transmittal guidance walls being substantially flexible in a dimension perpendicular to the flat cross-sectional surface of said plurality of torque transmittal guidance walls but substantially not flexible in a dimension parallel to the flat cross-sectional surface of said plurality of torque transmittal guidance walls, and said outer lumen substantially having a cross-sectional shape of at least a portion of a curved geometric figure; and an elongated stiffener in said outer lumen, said elongated stiffener being formed of a polymeric material conforming to the shape of said outer lumen, and said elongated stiffener including a central wire.