Noncircular inner lumen guiding catheter with assisted variable support
AssigneeDePuy Synthes Products, Inc.
InventorsRoberto Echarri, Clifford D. Taylor, Eric Williams
Life of this patent
Estimating the term…
Abstract
A noncircular inner lumen guiding catheter with assisted variable support has an inner wall defining a noncircular cross-sectional shaped lumen for use in delivery of multiple microcatheters or other devices for treatment of neurovascular defects, such as for treatment of aneurysms. The noncircular inner lumen guiding catheter with assisted variable support includes torque transmittal guidance walls that are flexible linearly but not circumferentially, and that are neither collapsible nor kinkable. The noncircular shaped cross-section of the inner lumen may extend along the entire length of the catheter or a portion thereof, including distal or proximal.
Claims20
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 substantially a complete oval 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 a portion of a circle, wherein said outer lumen is disposed to one side of said inner lumen, and said elongated wall structure defines a second outer lumen having a cross-sectional shape of a portion of a circle disposed to another, opposite side of said inner lumen, and wherein said wall structure defining said inner lumen and said inner lumen extend distally beyond said outer lumens;
- 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.
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 substantially a complete oval 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 a portion of a circle, wherein said outer lumen is disposed to one side of said inner lumen, and said elongated wall structure defines a second outer lumen having a cross-sectional shape of a portion of a circle disposed to another, opposite side of said inner lumen, and wherein said elongated wall structure defining said outer lumens extends distally beyond said inner lumen;
- 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.
A guiding catheter, comprising:
- 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;
- said elongated wall structure including an outside wall having a surface with a cross-sectional shape that changes along said length between a circular and a noncircular cross-sectional shape.
Dependencies are inferred from the claim text.