Re: [Histonet] Tissue Tek VIP Processor
Marsha Price asked about comparing the price of a traditional
overnight tissue processor (a VIP) with a microwave processor. There
are several points to consider when making such a calculation:
1) Reagent costs:
A traditional overnight tissue processor can have as many as 14
reagent stations with a capacity of several liters each. These
chemicals include fixative, graded series of alcohols, xylene or
other clearing agent and wax. All of them need to be rotated and
changed on a fixed schedule. A microwave processor uses only four
reagents (fixative, 100% ethanol or reagent alcohol, isopropanol and
wax), usually in quantities of 3 liters or less. Because xylene is
not used in the microwave, there are no xylene disposal or recycling
costs associated with microwave processing. Also, because the xylene
does not contaminate the paraffin, the wax can be used essentially
forever, cutting down significantly on wax consumption.
2) Labor costs
No one needs to spend the time to clean rotate and change the
chemicals on the microwave processor. I know this is everyone's
favorite job on the traditional tissue processor !
There is no need for a "rinse" cycle on a microwave processor
between biopsy runs. Runs can be made in immediate succession
without any downtime.
4) Service costs
I would never recommend buying a traditional tissue processor without
a service contract. Pumping systems require maintenance. Microwave
tissue processors have few moving parts and require essentially no
So, in addition to the upfront savings, there are ongoing savings
with a microwave that need to be considered as well.
(still recovering from an overabundance of food yesterday)
At 6:31 PM +0000 11/26/03, firstname.lastname@example.org wrote:
>Happy Thanksgiving everyone.
>Does anyone know approximately how much a VIP processor is running
>these days? I am trying to compare to a microwave processor.
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