Our design will assist with the efficiency and accuracy involved in the key steps of the sectioning process.
Consists of:
Rotating Stage
Bottom Plate
Pins
Side Walls
Component of the buffer tray stage that the brain specimen is placed on and rotates throughout the experiment
Needed to be fairly thin to keep the brain within the cutting range of the vibratome blade
Sits on the pins so it could be quickly moved from angle to angle, rather than trying to very precisely insert each pin
Combination of manual and CNC milling was used for the final stage design
Based on the original buffer tray
Has a shaft collar-like attachment used to slot into the vibratome
Elongated screw with a handle that extends out to the side of the box from the width of the buffer tray attachment that the operator can use the handle to tighten and secure the buffer tray to the vibratome
Used to hold the rotating stage at the desired angle during sectioning
Serve to keep the ACSF solution from leaking out of the tray through the pin slots
Designed specially to be able to sit within the side walls when not in use to both block the solution and prevent their separation from the stage
Each pin has a small rubber o-ring on its handle, directly before the external face of the side walls, which keeps it from falling into the stage tray and helps the operator know exactly how far to push it in to prop up the stage platform
Engravings at the side of each pin to know which angle is being set, depending on which one is pushed in
Prop the rotating stage up at the correct angles up to 45o, increments of 5o
Keep the ACSF solution that the brain is submerged in, inside the box
Designed to be structurally sound, easy to use, and safe to work with
Fabricated on a manual milling machine, but utilized programming techniques on these machines for the pin slots
Engraved angle labels were machined on the Haas MiniMill
Standard transverse hippocampal sectioning procedure was done on 4 brains by Dr. Du
With 3 brains, 1 brain hemisphere was mounted and sliced at a time
4th brain had both brain hemispheres mounted and sliced at the same time
Using the buffer tray stage design, the usable brain slices for testing increased by 77.5%
The time of procedure decreased by 47% - making this an efficient device