Appeal No. 1997-0875
Application No. 07/998,128
In reaching our decision in this appeal we have given careful consideration to the
appellant's specification and claims and to the respective positions articulated by the
appellant and the examiner. We make reference to the examiner's answer (Paper No. 24,
mailed June 26, 1996) for the examiner's reasoning in support of the rejection and to the
appellant's brief (Paper No. 17, filed May 8, 1995) and to the appellant's reply brief (Paper
No. 25, filed August 26, 1996) for the appellant's arguments thereagainst.
THE INVENTION
According to appellant,
The invention comprises a tissue repair promoting composition
comprising tissue repair promoting substances isolated from plasma and
tissue repair promoting substances isolated from platelets, the composition
being substantially free of fibrin. The tissue repair promoting substances
isolated from plasma include at least fibrinogen and may further include
factor XIII and fibronectin. The tissue repair promoting substances isolated
from platelets may include platelet-derived growth factor, epidermal growth
factor, and platelet factors 1-4. The tissue repair promoting substances may
be isolated from the plasma and platelets of a single human or animal.
[Brief, pp. 1-2, citations to the specification omitted.]
The claimed tissue repair promoting composition can be used as one component of a two-
component tissue-adhesive system, the other component being, e.g., a solution of
thrombin, calcium ions and aproprotin. The fibrinogen in the claimed composition is
converted to fibrin by application of the second component, i.e., thrombin. (See
specification, p . 21, ll. 8-19).
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