Process of making a shaped tip on a catheter
AssigneeBecton, Dickinson and Company
InventorsAzhar J. Khan, David P. Hopkins, Mohammad A. Khan
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Abstract
This invention relates to a process of making a shaped tip on a catheter. In this process, a lubricant solution is placed on a catheter, the catheter is placed on a mandrel, the catheter is heated, and the mandrel is engaged with a die to form a shaped tip on the catheter. The tipping lubricant of this invention comprises water as the solvent. The lubricant is a silicone surfactant, which is non-ionic and which is a good lubricating fluid. The lubricant solution into which the catheter is dipped includes low percentages of a solution stabilizer and an antimicrobial agent to clarify the solution and to inhibit microbial growth in the water solution. Vitamin E or its derivative may also be used in the lubrication solution.
Claims16
A method for forming a shaped tip on a catheter comprising:
- applying a tipping lubricant solution containing a silicone surfactant and water to a tip of an untipped catheter tubing:
- placing the untipped catheter tubing on a mandrel;
- heating the untipped catheter tubing;
- engaging the mandrel with a die to form the catheter tip;
- and
- removing the shaped catheter tubing from the die and mandrel.
Dependencies are inferred from the claim text.