I have received several emails from people saying that Beecher Instruments the Tissue Arrayer Instrument Company has been claiming that the block warmer does not work with .6mm needles. This is a false claim. I published an article in The Journal of Histotechnology / Vol. 26, No. 2 / June 2003 Tissue Microarray: Advanced Techniques that explains how the warmer (I call it The Punch Assist) works better than constructing an array using a room temperature recipient block (blank array block). I have tried to talk with Beecher Instruments about the block warmer a year ago. But they would not return my emails. Maybe they feel I am a threat. The warmer makes creating arrays so much easer. It reduces paraffin build-up and the surface of the array block is flat. And because the block warmer warms the block through the entire punching process the oven step is eliminated. I just press a hot slide to the block surface to make the surface smooth and clean. I do not sell the warmer, but in the article I discuss it in depth so a hospital engineer can build one for you. It is a simple instrument. I even produced a video on how arrays are created using the warmer so array technicians can begin using it right away with minimal testing and training. That is why I felt a need to publish this article. I have been creating arrays using the warmer for over 1 1/2 years. I have made dozens of arrays and punched 1000's of cores using the warmer. And most have been with the .6mm needle. I will not make an array without it no matter what size needle I use. If anyone has questions about the warmer email or call me please don't call Beecher Instruments.
Thom's Lab # (801) 408-2175