Disposable Hydrophilic Coating Latex Indwelling Catheter
This series of products is named as "Disposable hydrophilic coating latex catheter",
which uses a latex catheter as the raw material, and then it is modified with a three-layered surface coating.
The inner layer of the coating is a hydrophobic layer, which is tightly bounded to the latex substrate and thus prevents the release of proteins.
This overcomes the main drawback of latex used as raw materials for catheter manufacture, and makes the catheter safe with good biocompatible.
The intermediate layer is designed to transit the hydrophobic inner layer into a hydrophilic surface, and thus the super hydrophilic outer layer (artificial plasma PVP) can be firmly coated.
Advantage of our product
I.Super lubricity
Benefit to the super hydrophilic outer layer on our catheters, the friction coefficient of the catheters are reduced to less than 5.0% of the value of ordinary catheters. Moreover, the super lubricity can be easily and quickly obtained by dipping/leaching the catheter in water within 3 second.
II.Super stability
The stability of this three-layered coating is excellent. It is still stable after the catheter is dipped in urine for at least 60 days, or after the catheter is indwelled in patients' urethrae for at least 30 days.
III.Biocompatibility
The super hydrophilic outer layer is extracted from medical artificial plasma PVP, which is extremely hydrophilic and super lubricate. The PVP material is bio-friendly without any cytotoxicity. Moreover, Co-60 irradiation is adopted for the sterilization instead of epoxies. Therefore no epoxy residues and no cytotoxicity were detected, which make our products superior to other similar products.
IV.Suppression of surface crystallization. The crystallization on the surface of catheters is successfully suppressed, and no crystallization was detected by indwelling the catheter in the urethrae of the patients' bodies for more than 30-days. While the crystallization was detected within 7-days indwelling in the urethra of the patients' bodies for ordinary catheters. The suppression of surface crystallization greatly reduces secondary damage/infections of urethral mucosae.
