Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2004-04-09
2009-10-20
Lucchesi, Nicholas D (Department: 3763)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
C623S010000
Reexamination Certificate
active
07604617
ABSTRACT:
An implantable device including a housing having a stud projecting percutaneously through an incision in the patient's skin. The stud defines a peripheral surface extending longitudinally inwardly from the stud outer end. The longitudinal peripheral surface is used as a substrate to carry a peripheral fibrous layer which extends longitudinally along the stud from its outer end adjacent to the skin incision to below the patient's epidermal and dermal skin layers for promoting laterally directed soft tissue ingrowth. The housing also defines a lateral shoulder surface oriented substantially perpendicular to the longitudinal peripheral surface. The shoulder surface also carries a porous layer conducive to promoting tissue ingrowth. The porous layers on the device allows tissue ingrowth into the interstices of both porous layers to form an enhanced infection resistant barrier while also providing improved device anchoring.
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J. A. Jansen et al., Tissue reaction to soft-tissue anchored percutaneous implants in rabbits, Journal of Biomedical Material Research, vol. 28, 1047-1054 (1994), John Wiley &.
Moran Byron L.
Porter Christopher H.
Redmond Russ J.
Vidal Claude A.
Freilich Hornbaker & Rosen
Koharski Christopher D
Lucchesi Nicholas D
Medical Research Products-B, Inc.
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