Block Alignment Calculator enables planar adjustment of the tissue block surface to the current position of the cryostat knife in Mohs Micrographic Surgery using the B-S laboratory device.
The first step is to prepare the test block (without tissue) using B-S device, insert it in the cryostat socket in the same position and to cut it for a thickness of:
3 μm12 μm
While cutting, pay attention to 3 following elements and enter them into the program to make calculations of the due movement of the knobs of the device.
Dial Position
At which point of the dial cutting of the test block begins.
Tap, drag, or use the buttons below
°
Depth
After what number of turns of the cryostat crank the first section covering the entire surface of the block was obtained?
1 turn700 turns
× 7 = At depth 7 μm
Diameter
What is the diameter of the test block in millimeters?
10 mm50 mm
Results: Knob Rotations
Knob 1
L (left)
Knob 2
R (right)
After turning knobs make another test block and cut it again in cryostat as before.
If complete test block surface is obtained at depth exceeding 80 microns – repeat the adjustment.
If position of the test block is proper – process the tissue.