MULTILUMEN CATHETERS AND METHOD OF MANUFACTURING

摘要

A multilumen catheter assembly and method of making the catheter assembly is provided that involves providing a plurality of tubes, each tube having a first end, a second end, at least one lumen, and at least one surface, selectively heating at least a portion of the surface of at least a first tube of the plurality of tubes, and contacting the selectively heated portion of the tube with a portion of the surface of a second tube to form a multilumen catheter shaft that is joined together along at least a portion of the length of the catheter shaft.

主权项

1. A method of making a multilumen catheter assembly, comprising:
providing a first tube and a second tube, both the first tube and the second tube having a distal end, a proximal end, at least one lumen, an inner surface and an outer surface; heating a first portion of the first tube, wherein the heating consists of heating a first inner surface of the first portion of the first tube near the proximal end of the first tube, heating a first portion of the second tube, wherein the heating consists of heating a first inner surface of the first portion of the second tube near the proximal end of the second tube; contacting the selectively heated portion of the inner surface of the first tube with the heated portion of the inner surface of the second tube; and forming the multilumen catheter shaft that is jointed together along at least a portion of the length of the first tube and the second tube, the distal end of the first tube and the distal end of the second tube are not joint together along a selected distance, thereby forming a split tip multilumen catheter.