Method of forming a hydrophilic surface coating on a medical device and a medical device prepared according to this method
AssigneeColorplast A/S
InventorCarsten Bob Rødsten
Life of this patent
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Abstract
A hydrophilic coating with improved retention of water on a surface, especially a surface of a medical device such as a urethra catheter, prepared by applying on to the surface in a single process step a solution of components that will combine to form the hydrophilic coating, at least one osmolality promoting agent being incorporated into said solution.
Claims14
In a method of forming a hydrophilic and osmolality promoting agent coating on the surface of a substrate which was not previously provided with a hydrophilic coating comprising applying, in one process step, a solution of agents which will combine to form the hydrophilic coating to the surface of the substrate and causing said agents to combine to form the hydrophilic coating, the improvement which comprises;
- incorporating into said solution at least one osmolality promoting agent whereby the osmolality promoting agent is applied to the substrate in the same process step as said solution of agents.
In a medical device for introduction into a body cavity comprising a substrate having a surface and a single hydrophilic coating disposed on at least part of said surface and also having at least one osmolality promoting agent associated therewith, the improvement which comprises:
- said osmolality promoting agent being incorporated in said hydrophilic coating itself.
Dependencies are inferred from the claim text.