Surgery – Truss – Pad
Patent
1976-03-01
1977-10-04
Yasko, John D.
Surgery
Truss
Pad
A61L 1500
Patent
active
040518485
ABSTRACT:
A wound dressing which acts as a temporary synthetic skin is provided for the eventual healing of tissue partially or completely denuded of skin. The dressing is a unitary structure which is stretchable in two dimensions and is comprised of an outer component and an inner component. The outer component is a microporous membrane permeable to gases but impermeable to micro-organisms. The inner component is a three dimensional matrix structure made of at least two substantially coextensive layers of knitted fabric each bound into the other at closely spaced points to retain stretchability. Each fabric layer is knitted from threads spaced from each other at such a distance that cellular elements from the denuded tissue may invade the dressing to promote healing. The inner component must be thick enough to allow for uniform invasion by cellular elements from the denuded wound, but not so thick so as to allow a large portion of the dressing to be filled by tissue exudates and body fluids, rather than cellular elements representing fibroblastic ingrowth, and not so thick as to prevent infection within such an accumulation from being recognized.
REFERENCES:
patent: 2682873 (1954-07-01), Evan et al.
patent: 3526224 (1970-09-01), Potts
patent: 3545442 (1970-12-01), Wicker et al.
patent: 3824996 (1974-07-01), Carlisle
patent: 3949742 (1976-04-01), Nowakowski
patent: 3971381 (1976-07-01), Gibson
patent: 3972328 (1976-08-01), Chen
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