Councilman Chisel
Councilman Chisel - Related Videos
08:38
Exposure of the Pig CNS for Histological Analysis: A Manual for Decapitation, Skull Opening, and Brain Removal
0 Views •
Cited by 26 •
2017
The goal of this paper and instructional video is to describe how to expose and remove the postmortem pig brain and pituitary gland in an intact state, suitable for subsequent macroscopic and histological analysis.
08:30
A Method to Make a Craniotomy on the Ventral Skull of Neonate Rodents
0 Views •
Cited by 6 •
2014
A surgical method is described to expose the ventral skull in neonate rats. Using this approach it is possible to open a craniotomy to perform acute electrophysiology and two-photon microscopy experiments in the brainstem of anesthetized pups.
10:00
Experimental Protocol to Determine the Chloride Threshold Value for Corrosion in Samples Taken from Reinforced Concrete Structures
0 Views •
Cited by 38 •
2017
We propose a method to measure a parameter that is highly relevant for corrosion assessments or predictions of reinforced concrete structures, with the main advantage of permitting testing of samples from engineering structures. This ensures real conditions at the steel-concrete interface, which are crucial to avoid artifacts of laboratory-made samples.
09:52
An Orthotopic Glioblastoma Mouse Model Maintaining Brain Parenchymal Physical Constraints and Suitable for Intravital Two-photon Microscopy
0 Views •
Cited by 24 •
2014
We have established a cortical orthotopic glioblastoma model in mice for intravital two-photon microscopy that recapitulates the biophysical constraints normally at play during the growth of the tumor. A chronic glass window replacing the skull above the tumor enables the follow-up of the tumor progression over time by two-photon microscopy.
05:12
Implanting an On-Head Electrode System in a Rat Model for Real-Time Seizure Detection
0 Views •
2025
This video demonstrates the method of implanting an on-head electrode system in an anesthetized rat for real-time seizure detection. The procedure includes placing stimulation and recording electrodes, securing them with dental cement, and connecting them to a head-mounted amplifier.
FAQs
The beveled edge concentrates applied force over a narrow contact area rather than distributing it broadly across the bone. This concentration supports controlled separation of cranial bone and can help the operator direct the cut more precisely. The mechanism matters because limiting the cutting area may reduce unnecessary bone damage while creating the access needed for a neurosurgical procedure.
The method of advancement depends on the instrument’s design and the amount of force needed for the task. A mallet can deliver an advancing impact, whereas hand application allows direct manual control when less force or more gradual manipulation is appropriate. Recognizing this distinction helps match handling to the intended bone-cutting action.
A Councilman chisel provides a manually directed cutting action through its beveled edge, while powered instruments use mechanical power and rongeurs remove bone through a different grasping action. The overview indicates that modern powered tools and rongeurs may be preferred for some procedures. Thus, instrument selection depends on the surgical task and the desired approach to bone removal.
It can assist when the procedure requires cranial bone to be cut or removed to create access to intracranial structures. In these settings, the chisel supports the bony portion of the operation rather than addressing the intracranial structures directly. Its usefulness lies in providing a controlled means of separating or removing bone as the surgical exposure is established.
Shaping or removing bone becomes relevant when the skull must be modified to expose the operative area or accommodate the intended surgical access. The Councilman chisel can support that work by allowing targeted manipulation of cranial bone. In neuroscience-related procedures, this connects the instrument’s mechanical function with the broader goal of reaching intracranial structures.
Proper handling helps the operator control how force reaches the cranial bone and where separation occurs. That control can limit unnecessary bone damage during access creation or bone shaping. Although other instruments may be selected for particular procedures, careful use of the chisel remains relevant when its controlled cutting action is appropriate for the planned neurosurgical task.