Weight Drop Device
Weight Drop Device - Related Videos
01:47
Technique to Induce Post-Traumatic Seizures in a Mouse Model via a Weight Drop Traumatic Injury
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2025
Source: Shandra, O. et al., Inducing Post-Traumatic Epilepsy in a Mouse Model of Repetitive Diffuse Traumatic Brain Injury. J. Vis. Exp.
08:45
Glass-Based Devices to Generate Drops and Emulsions
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Cited by 1 •
2022
Here, a protocol to manufacture glass-based microfluidic devices used for generating highly monodisperse emulsions with controlled drop size is presented.
05:47
Do-It-Yourself Device for Recovery of Cryopreserved Samples Accidentally Dropped into Cryogenic Storage Tanks
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Cited by 5 •
2012
Here we present a low cost, durable cryotolerant device for sample retrieval from Dewar tanks filled with liquid nitrogen. The ease of construction and modular design of the device makes the process of sample retrieval from cryogenic tanks safe and easy.
08:27
Development of an Uncomplicated Mild Traumatic Brain Injury Model Modified by Weight-Drop Method and Evidenced by Magnetic Resonance Imaging
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2025
Here, we present a protocol to establish a closed-head injury animal model replicating the neuroimage outcome of uncomplicated mild traumatic brain injury with the preserved brain structure in the acute phase and long-term brain atrophy. Longitudinal magnetic resonance imaging is the primary method used for evidence.
09:20
Picoinjection of Microfluidic Drops Without Metal Electrodes
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Cited by 2 •
2014
We have developed a technique for picoinjecting microfluidic drops that does not require metal electrodes. As such, devices incorporating our technique are simpler to fabricate and to use.
FAQs
Impact severity changes when researchers alter the dropped mass, its release height, or the way it contacts the target. A greater mass or height changes the energy available at impact, while contact conditions influence how that energy reaches the specimen. Controlling these variables allows studies to produce different injury or loading levels and relate biological or material responses to defined mechanical conditions.
Standardized impact conditions make results more reproducible across specimens and experiments. Keeping mass, height, and contact characteristics defined helps researchers determine whether differences in tissue damage or material response arise from the experimental factor being studied rather than uncontrolled changes in impact severity. This consistency is important when evaluating treatments, protective equipment, implants, or rehabilitation strategies.
The target determines whether the experiment examines biological injury or the behavior of a medical material. Tissue studies can focus on responses associated with blunt trauma, whereas material studies can examine how implants or other medical materials respond to controlled mechanical loading. Interpreting the outcome therefore requires relating the observed response to the type of specimen tested and its intended medical context.
Researchers should define the mass, release height, target, and contact conditions before an impact is performed. These choices establish the mechanical input and provide a basis for comparing responses between tests. The specimen’s outcome can then be considered in relation to the selected impact severity, whether the goal is to model tissue damage or assess a medical material.
Medical researchers use controlled impacts to study blunt trauma and tissue damage under standardized laboratory conditions. The same approach can support evaluation of implants, protective equipment, rehabilitation strategies, and treatments by exposing them to defined mechanical challenges. Its value lies in connecting a controlled impact input with the resulting biological or material response.
Studies can characterize how biological tissues or medical materials respond when impact severity is changed systematically. Researchers may use those responses to compare injury conditions, examine implant or protective-equipment performance, or assess whether rehabilitation strategies and treatments are suitable for mechanically induced damage. The resulting comparisons provide experimental evidence under controlled conditions rather than relying only on uncontrolled injury events.