Appeal No. 2002-0450
Application No. 09/142,814
Claims 1 and 10 are representative of the claims on appeal and read as follows.
1. A material for use in a wound dressing or a wound implant, the material
comprising a plurality of beads, wherein each bead comprises a porous core of a
first bioabsorbable material and a substantially non-porous layer of a second
bioabsorbable material around said core.
10. A method of making bioabsorbable beads for use in wound dressings or
implants, the method comprising:
providing a dispersion of a first bioabsorbable material in a liquid solvent:
generating droplets of said dispersion;
freezing said droplets to form frozen droplets;
freeze drying or solvent drying the frozen droplets to form discrete porous cores
of said first bioabsorbable material; and
coating said porous cores with a substantially non-porous layer of a second
bioabsorbable material.
The references relied upon by the examiner are:
Berg et al. (Berg) 4,837,285 Jun. 6, 1989
Silver et al. (Silver) 4,970,298 Nov. 13, 1990
United Kingdom Patent Application
Arnold GB 228 1861 Mar. 22, 1995
Grounds of Rejection
Claims 1-8 stand rejected under 35 U.S.C. ' 102 as anticipated by Arnold.
Claims 1-8 and 10-11 stand rejected under 35 U.S.C. ' 103(a) as obvious over
Berg in view of Silver or Arnold.
We reverse these rejections.
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