Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1988-04-21
1990-10-09
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156322, 264248, 264322, 604 43, 604280, A61M 500, B29C 5700, B29C 6518
Patent
active
049618091
ABSTRACT:
A dual lumen catheter, for insertion into a vein of a patient for use in haemodialysis treatments, having first and second portions defining a shorter intake lumen and a longer return lumen. The intake lumen is closed at its end and receives blood through at least one opening in the side wall of the catheter and the second lumen includes the second portion which is of smaller cross-section than the first portion. Also described is a catheter having an intake lumen and a return lumen in which the return lumen has a tip of different stiffness from the main body of the catheter, the intake lumen being closed at its end and receiving fluid through an opening in the side wall of the catheter. Methods of making such catheters are also described.
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Ball Michael W.
Maki Steven D.
Vas-Cath Incorporated
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