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US 5,879,499 AGranted
Method of manufacture of a multi-lumen catheter
AssigneeHeartport, Inc.
InventorTimothy J. Corvi
Life of this patent
Estimating the term…
Abstract
A process for forming a multi-lumen catheter which includes the steps of providing a multi-lumen first tube, winding a flexible filament onto the first multi-lumen tube, and positioning a second tube over the wound filament layer of the first tube is disclosed for manufacturing the multi-lumen catheter. The second tube is melted and bonded to the first tube and an occluding member is mounted onto the second tube to occlude a patient's ascending aorta when the occluding member is expanded.
Claims4
A method of forming a multilumen catheter, comprising the steps of:
- forming a first tube having a first lumen and a second lumen, the first lumen having a cross sectional size between 0.00817 to 0.01053 inches.sup.2 and the second lumen having a cross sectional size between 0.00095 to 0.0015 inches.sup.2 ;
- wrapping a flexible filament around the first tube in a helical manner;
- positioning a second tube over the flexible filament, the second tube being made of a material, the second tube having a thickness of 0.002 to 0.006 inch;
- and
- melting the second tube so that the material contacts and bonds to the first tube thereby forming a body for a multilumen catheter;
- and
- mounting an occluding member to the second tube, the occluding member being movable between a collapsed position and an expanded position, the occluding member being configured to occlude a patient's ascending aorta when in the expanded position.
4 more elements
Dependencies are inferred from the claim text.