(
for additional test procedures with the TOSI
®
, please visit:
http://www.hmark.com/tosi.php
)
1.
Open the TOSI
®
package by tearing across the precut notch at the top of the TOSI
®
package; remove the TOSI
®
coupon from the package.
2.
Secure one (1) TOSI
®
per level in the center of an empty tray as depicted in the
diagram above.
3.
Place one on each shelf. In multiple shelf units follow diagram above and examples:
e.g. 3 Shelf Unit, 3 TOSI
®
; 4 Shelf, 4 TOSI
®
or 1 Level Tunnel Washer, 1 TOSI
®
.)
4.
Process using your surgical instrument wash cycle.
5.
Examine the TOSI
®
for visual cleanliness. Compare the test to the
interpretation chart
,
WT104, scale (0-5).
6.
Record results on
log sheet
on www.hmark.com.
Sonic & Blood Soil Test
1.
Make sure that the ultrasonic cleaner has been degassed prior to running the test
and has the correct amount of cleaning solution in the tank/bath.
2.
The number of SonoChecks placed in the tank will be dependent on the volume of
the tanks (see routine testing).
3.
Place the correct amount of SonoChecks in the appropriate tray for testing
according to tank size.
4.
Secure one (1) TOSI
®
to the middle of the tray.
5.
TOSI
®
and SonoCheck
TM
can be placed in the same tray.
6.
Run the Sonic through its normal cycle (record the cycle).
7.
Record both the SonoCheck
TM
and TOSI
®
results at the end of the cycle.
Interpretation of Results
If less than optimal results were obtained (1-5), make adjustments to the equipment
utilizing the
chart (WT104)
as a guide. Typical failures can be caused by:
●
clogged spinner arms
●
worn spray arm bushings
●
insufficient detergent due to empty containers
●
detergent pump failure or clogged delivery tubing
●
poorly functioning water pump
●
incorrect water temperature
●
incorrect cycle settings
Contraindications of Test Results
●
Tiny Red Spot on TOSI
®
Plate
: Very rarely, but nonetheless possible, is a slight
imperfection in the stainless-steel plate which leads to oxidation of the metal. The
result is a little red speck which could be confused with the hemoglobin soil on the
TOSI
®
. The easiest way to double check for such a thing is to directly employ
mechanical action (with a gloved hand, preferably with the aid of an instrument
cleaning brush) under water. If the speck remains, then it is definitely not the TOSI
®
blood soil that remains.
●
Ghosting on the TOSI
®
Plate
: A whitish stain is observed on the TOSI
®
plate, which
can be confused with fibrin protein remaining on the TOSI
®
. This usually happens at a
facility that has hard water. If allowed to dry and the TOSI
®
is read at that point, hard
water staining may be observed on the TOSI
®
plate. The simplest method is to gently
submerge the TOSI
®
plate in a bath of water. If the stain “disappears” when wetted,
this indicates a non-test soil residue (likely hard water minerals or detergent) and not
the blood soil.
●
Ultrasonic Cycle: Residual Soil Re-deposited on TOSI
®
Plate:
In ultrasonic
washers that do not have a distinct rinsing stage within the same tank (draining of
cleaning solution and filling with a fresh bath of water), it is possible that a small
amount of TOSI
®
soil can become trapped underneath the clear plastic holder and that
soil is then redeposited upon the coupon. To determine if that is the case, simply give a
gentle agitation of the TOSI
®
within a bath. Any soil that was detached during the
cycle should be rinsed away. If soil still remains attached to the surface of the TOSI
®
after this rinsing procedure, then this indicates sub-optimal cleaning.
Documentation
Record all changes and adjustments to the washer according to the results found from the
TOSI
®
test relative to the chart scale. Utilize the supplied log sheet.
Special Warnings and Cautions
Disposal
Since the TOSI
®
is run in the mechanical cleaning equipment, there is a chance for
contamination. Therefore, it is recommended to dispose of the used TOSI
®
in a biohazard
container in compliance with facility protocols.