| 摘要 |
<p>Medical implants or devices such as catheters resistant to microbial growth prepared by subjecting a medical device to electret treatment, preferably by electrostatic charging. The medical device or implant is composed of a dielectric material, or coated with a dielectric substance. The dielectric material or coating substance on the surface of the device or implant retains a positive or negative charge. The device or implant is charged either prior to or after packaging. The device or implant is packaged in a container or wrap that maintains sterility. The device or implant is sterilized either during formation, prior to charging, or after charging. Sterilization may be conducted either before or after packaging depending on the type of packaging utilized. The charged device or implant catheter resists microbial growth and is particularly useful for inhibiting bacterial infections when inserted into a patient, thereby providing a device that can remain in contact with, inserted in or implanted in the patient for a longer period of time with reduced risk of microbial infection.</p> |
