1190 
MONITORING 
TTT 
M 
1 j 1 M n n \ \ ^ \ \ w \ 
T R 1 
1 
1 2 \ 
\ \ \ \ M M > \ 
3 
Figure 2. — Dacron mesh interface with one or two lead wires in place. 
drawn through the incision site and 
threaded through the holes; 
Medical Grade A Adhesive (Dow Corn- 
ing) is applied to the lead wires at the 
point where the wires are to exit the ani- 
mal's body. The adhesive acts to bond 
the lead wire to the silicone rubber ridge. 
A knot can be tied in the wire below the 
interface to insure the bond between the 
lead wire insulation and the interface 
from breakage during abnormal stresses. 
Note! Care must he taken to allow a suf- 
ficient amount of wire below the skin to 
eliminate stressing the interface during 
normal movements of the animal. If the 
wires become taut during movement, the 
incision will not heal and the interface 
will eventually be torn loose. 
The silicone rubber ridge of the interface 
is slid down the wires and into place at 
the implant site ; 
6. The incision is closed with silk sutures; 
7. When it is likely that the animal would 
claw or chew at the implant site, appli- 
cation of a protective bandage is appro- 
priate ; 
8. After one week the sutures are removed 
and under normal conditions complete re- 
covery occurs within the following week. 
The Gertler type interface has been suc- 
cessfully used in a number of laboratory ani- 
mals (adult cats and rats). There have also 
been a small number of failures when the inter- 
face was used. In these cases, it was always 
found that in certain movements made by the 
animal, the wire lead became taut. The taut wire 
(external or internal to the skin) applied a 
stress to the incision site resulting in connective 
