Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1992-03-27
1994-03-22
Shay, Randy C.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604328, A61M 532, A61M 2500
Patent
active
052959791
ABSTRACT:
A urinary catheter and system includes a catheter with a drain lumen which is coated with oligodynamic metal and preferably arranged with a coating of a more noble metal for creating an iontophoretic galvanic couple, which drives antimicrobial ions into solution. The exterior of the catheter is also coated in a similar manner to inhibit microbes migrating toward the bladder along the outer surface of the catheter. The system includes a flow rate control device which may be a one-way valve, a filter or both. A collection bag is coupled to the control device. The interconnecting hoses, the flow rate control device(s) and the collection bag are also coated on the interior with oligodynamic metal, preferably silver, and also with a more noble metal, preferably platinum.
REFERENCES:
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patent: 4232677 (1980-11-01), Leibinsohn
patent: 4677143 (1987-06-01), Laurin et al.
patent: 4840625 (1989-06-01), Bell
patent: 4886505 (1989-12-01), Haynes et al.
patent: 4933178 (1990-06-01), Capelli
patent: 5057094 (1991-10-01), Abbey
Beard Richard B.
Boxman Raymond L.
DeLaurentis Mark
Pourrezaei Kambiz
Meise William H.
P & D Medical Coatings, Inc.
Shay Randy C.
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