Title:
浸透圧増強流体付きのカテーテル・アセンブリ
Document Type and Number:
Japanese Patent JP5033426
Kind Code:
B2
Abstract:
A catheter assembly is disclosed comprising: a hydrophilic catheter; a wetting 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 compound, and the total concentration of the osmolality-increasing compound(s) is very high, preferably exceeding 600 mOsm/dm 3 . The wetting fluid could either be arranged in contact with the hydrophilic surface layer of the catheter in the receptacle, for preservation of the hydrophilic surface layer in a wetted state during accommodation in said receptacle and provision of a ready-to-use catheter assembly, or be arranged to keep the wetting fluid separated from the 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 disclosed as well. The provision of the osmolality-increasing compound in the wetting fluid provides several advantages per se, such as a improved properties of the hydrophilic coating, a more predictable and controllable wetting process, a more expedient and cost efficient production, etc. Further, the use of this very high concentration of osmolality-increasing compound in the wetting fluid has proven remarkably efficient.
Inventors:
Jan Ittus
Christina Kuru
Christina Kuru
Application Number:
JP2006546918A
Publication Date:
September 26, 2012
Filing Date:
December 22, 2004
Export Citation:
Assignee:
Astra Tech Actie Borrag
International Classes:
A61M25/00; A61L29/08; A61L29/14; A61M1/00; A61M27/00; C09K23/00; A61M
Domestic Patent References:
| JP2002536264A | ||||
| JP2000512179A | ||||
| JP2001500414A |
Foreign References:
| WO2003092779A1 |
Other References:
L Waller,The importance of osmolality in hydrophilic urethral catheters:a crossover study,Spinal Cord,1997年,vol35,229-233
Attorney, Agent or Firm:
Junji Yuda
Noriyuki Takebayashi
Noriyuki Takebayashi