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US 10,245,413 B2Granted
Distal access aspiration guide catheter
AssigneeCovidien LP
InventorsLynn Shimada, Seferino Torres, Brian Strauss, Jeffrey Valko
Life of this patent
Estimating the term…
Abstract
Distal access aspiration guide catheter system and methods for delivering implantable devices, catheters, or substances in or near and/or restoring flow through body lumens, such as blood vessel lumens are described. A Distal access aspiration guide catheter having a proximal, medial, and distal possessing high flexibility, high resistance to kinking and a large lumen to wall thickness ratio.
Claims39
A catheter device comprising:
- an elongate tubular catheter body having a proximal end and a distal end and a passageway defining an inner lumen extending between those ends,
- the elongate tubular catheter body comprising an inner tubular liner of a first liner material in coaxial relationship with an outer tubular cover, a tubular member between the inner tubular liner and the outer tubular cover, and a hydrophilic coating on an outer surface of the outer tubular cover, the tubular member comprising a metal helix defining a helical gap and a polymeric kink resistance member comprising a thermoset polymer positioned within the helical gap of the metal helix, and the catheter body, in the region of the distal end, having an inner diameter to wall thickness ratio greater than or equal to 16:1 and a kink radius of about 4.42 millimeters (mm)+/−0.203 mm (about 0.174 inch+/−0.008 inch) or less.
A guide catheter comprising:
- an elongate tubular member having a proximal end and a distal end and a passageway defining an inner lumen extending between those ends, the elongate tubular member comprising:
- a) a relatively stiff proximal segment, the proximal segment comprising an inner proximal tubular liner comprising a proximal liner material in coaxial relationship with an outer proximal tubular cover comprising a proximal cover material, a metallic braid structure positioned upon the inner proximal tubular liner and covered by the outer proximal tubular cover;
- b) a relatively flexible distal segment, the distal segment comprising an inner distal tubular liner comprising a distal liner material in coaxial relationship with an outer distal tubular cover comprising a distal cover material, a distal tubular member between the distal liner material and the distal cover material, the distal tubular member comprising and a metal helix defining a helical gap and a polymeric kink resistance member structure positioned within the helical gap, the elongate tubular member, in the region of the distal end, having an inner diameter to wall thickness ratio greater than or equal to 16:1 and a kink radius of about 4.42 millimeters (mm)+/−0.203 mm (about 0.174 inch+/−0.008 inch) or less;
- and
- c) at least one intermediate segment defining a passageway between the relatively stiff proximal segment and the relatively flexible distal segment, the at least one intermediate segment providing a transition from the metallic braid structure to the distal tubular member.
2 more elements
A catheter device comprising:
- a catheter body comprising:
- a tubular member having an inner lumen and an outer surface, said tubular member comprising a metal structure having a helical gap and a polymeric material disposed within the helical gap;
- an inner liner extending through the lumen of the tubular member and defining an inner lumen of the catheter;
- and
- an outer cover on the outer surface of the tubular member,
- wherein the polymeric material disposed within the helical gap is different from the materials of the inner liner and the outer cover, and
- wherein a distal region of the catheter body has an inner diameter to wall thickness ratio greater than or equal to 16:1 and a kink radius of about 4.42 millimeters (mm)+/−0.203 mm (about 0.174 inch+/−0.008 inch) or less.
4 more elements
A method for manufacturing a catheter, the method comprising:
- forming a catheter body, wherein forming the catheter body comprises:
- A) forming or obtaining a metal helix defining a helical gap;
- B) disposing polymeric material comprising a thermoset polymer within the helical gap such that the polymeric material and the metal helix, in combination, form a tubular member having an outer surface and a lumen;
- C) disposing an inner liner within the lumen of the tubular member;
- and
- D) disposing an outer cover on the outer surface of the tubular member,
- wherein a distal region of the catheter body has an inner diameter to wall thickness ratio greater than or equal to 16:1 and a kink radius of about 4.42 millimeters (mm)+/−0.203 mm (about 0.174 inch+/−0.008 inch) or less.
4 more elements
A method for treating or diagnosing a disorder in a human or animal subject, said method comprising:
- inserting a catheter into the subject's vasculature, the catheter including:
- a tubular member having an inner lumen and an outer surface, said tubular member comprising a metal helix having a helical gap and a polymeric material disposed within the helical gap;
- an inner liner extending through the lumen of the tubular member and defining an inner lumen of the catheter;
- and
- an outer cover on the outer surface of the tubular member;
- wherein the polymeric material disposed within the helical gap is different from the materials of the inner liner and the outer cover and wherein a distal region of the catheter body has an inner diameter to wall thickness ratio greater than or equal to 16:1 and a kink radius of about 4.42 millimeters (mm)+/−0.203 mm (about 0.174 inch+/−0.008 inch or less);
- delivering a substance or device through the lumen of the catheter device;
- and
- using the substance or device to treat or diagnose the disorder.
6 more elements
Dependencies are inferred from the claim text.