[Histonet] Freezing spray in cryostats

Terri Braud tbraud at holyredeemer.com
Wed Sep 25 12:31:15 CDT 2019


My question is why would you ever want to use an aerosol in the cryostat, taking a chance on aerosolizing some nasty bug?
Is the 30 seconds you save in using freezing spray worth the exposure to TB or goodness-knows-what?  
We use a simple metal heat extractor (comes standard in our Leicas) and place it on top of the freezing block to accelerate the process.  We never have issues with turn around times.
For me, no freezing spray.  Ever.

Terri L. Braud, HT(ASCP)
Anatomic Pathology Supervisor
Laboratory
Holy Redeemer Hospital
1648 Huntingdon Pike
Meadowbrook, PA 19046
ph: 215-938-3689
fax: 215-938-3874
Care, Comfort, and Heal

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Today's Topics:

   1. Flammable Sprays in Cryostats (Knutson, Deanne)
   2. Re: Flammable Sprays in Cryostats (Akemi)
   3. Re: Flammable Sprays in Cryostats (Hannen, Valerie)
   4. Re: Flammable Sprays in Cryostats (Ingles Claire)


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Message: 1
Date: Wed, 25 Sep 2019 07:50:44 -0500
From: "Knutson, Deanne" <DKnutson at primecare.org>
To: "'histonet at lists.utsouthwestern.edu'"
	<histonet at lists.utsouthwestern.edu>
Subject: [Histonet] Flammable Sprays in Cryostats
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	<1E0E2B14C709174B8AC2BE0AE7F768330159B575665C at EXCHANGE2K7.staprimecare.org>
	
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I just received a letter from Leica Biosystems where they are prohibiting the usage of flammable
freezing sprays in their cryostats.  What are others using in their cryostats to instantly freeze specimens?

Thank you.


Deanne Knutson
Supervisor
Anatomic Pathology
dknutson at primecare.org<mailto:dknutson at primecare.org>






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Message: 2
Date: Wed, 25 Sep 2019 09:05:20 -0500
From: Akemi <akemiat3377 at gmail.com>
To: "Knutson, Deanne" <DKnutson at primecare.org>,	Histonet
	<Histonet at lists.utsouthwestern.edu>
Subject: Re: [Histonet] Flammable Sprays in Cryostats
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We are purchasing two of their newer UV cryostats and they were adamant that we use a non flammable freezing spray because it can damage the UV unit and have potential for exploding.

Akemi Allison

Sent from my iPhone

> On Sep 25, 2019, at 7:50 AM, Knutson, Deanne via Histonet <histonet at lists.utsouthwestern.edu> wrote:
> 
> I just received a letter from Leica Biosystems where they are prohibiting the usage of flammable
> freezing sprays in their cryostats.  What are others using in their cryostats to instantly freeze specimens?
> 
> Thank you.
> 
> 
> Deanne Knutson
> Supervisor
> Anatomic Pathology
> dknutson at primecare.org<mailto:dknutson at primecare.org>
> 
> 
> 
> 
> 
> 
>  ________________________________
> This email may include confidential and privileged information. If this is not intended for your use, please destroy immediately and contact the sender of the message.
> 
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Message: 3
Date: Wed, 25 Sep 2019 15:49:00 +0000
From: "Hannen, Valerie" <Valerie.Hannen at parrishmed.com>
To: "'Knutson, Deanne'" <DKnutson at primecare.org>
Cc: "Histonet at lists.utsouthwestern.edu"
	<Histonet at lists.utsouthwestern.edu>
Subject: Re: [Histonet] Flammable Sprays in Cryostats
Message-ID:
	<68e18a8b516a49d4b033de54e175687d at PMSVRLEX02.parrishmed.local>
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We received the same letter months ago.  We changed to a non-flammable spray.  It is called STATFREEZE, we purchase it from STATLAB.  The catalog number is SL202/134a.  Be careful if you order it because they also sell a product called STATFREEZE that is flammable. 



Valerie Hannen,MLT(ASCP),HTL,SU (FL)
Section Chief, Histology
Parrish Medical Center
951 N. Washington Ave.
Titusville,Florida 32796
T: (321)268-6333 ext. 7506
F: (321) 268-6149
valerie.hannen at parrishmed.com
www.parrishmed.com



-----Original Message-----
From: Knutson, Deanne via Histonet [mailto:histonet at lists.utsouthwestern.edu] 
Sent: Wednesday, September 25, 2019 8:51 AM
To: 'histonet at lists.utsouthwestern.edu'
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Begin Original Message:

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I just received a letter from Leica Biosystems where they are prohibiting the usage of flammable

freezing sprays in their cryostats.  What are others using in their cryostats to instantly freeze specimens?



Thank you.





Deanne Knutson

Supervisor

Anatomic Pathology

dknutson at primecare.org<mailto:dknutson at primecare.org>













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Message: 4
Date: Wed, 25 Sep 2019 16:42:30 +0000
From: Ingles Claire <CIngles at uwhealth.org>
To: "'histonet at lists.utsouthwestern.edu'"
	<Histonet at lists.utsouthwestern.edu>, 	"Knutson, Deanne"
	<DKnutson at primecare.org>
Subject: Re: [Histonet] Flammable Sprays in Cryostats
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Liquid Nitrogen guns.
Claire
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From: Knutson, Deanne via Histonet <histonet at lists.utsouthwestern.edu>
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Subject: [Histonet] Flammable Sprays in Cryostats

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I just received a letter from Leica Biosystems where they are prohibiting the usage of flammable
freezing sprays in their cryostats.  What are others using in their cryostats to instantly freeze specimens?

Thank you.


Deanne Knutson
Supervisor
Anatomic Pathology
dknutson at primecare.org<mailto:dknutson at primecare.org>






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