| 摘要 |
<p>A catheter assembly is disclosed comprising: a hydrophilic catheter; a wetti ng fluid for wetting of the catheter; and a receptacle enclosing at least the insertable part of the catheter and the wetting fluid. Further, the wetting fluid is a solution incorporating at least one osmolality-increasing compoun d, and the total concentration of the osmolality-increasing compound(s) is very high, preferably exceeding 600 mOsm/dm3. The wetting fluid could either be arranged in contact with the hydrophilic surface layer of the catheter in th e receptacle, for preservation of the hydrophilic surface layer in a wetted state during accommodation in said receptacle and provision of a ready-to-us e catheter assembly, or be arranged to keep the wetting fluid separated from t he hydrophilic surface layer of the catheter during storage, but to be brought into contact with said hydrophilic surface layer upon activation before an intended use of the catheter. A similar method and wetting fluid is disclose d as well. The provision of the osmolality-increasing compound in the wetting fluid provides several advantages per se, such as a improved properties of t he hydrophilic coating, a more predictable and controllable wetting process, a more expedient and cost efficient production, etc. Further, the use of this veryhigh concentration of osmolality-increasing compound in the wetting flui d has proven remarkably efficient.</p> |
