Tissue Weld Strength
Tissue Weld Strength - Related Videos
08:40
Ultrasonic Welding of Thermoplastic Composite Coupons for Mechanical Characterization of Welded Joints through Single Lap Shear Testing
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Cited by 4 •
2016
A straightforward procedure for ultrasonic welding of thermoplastic composite coupons for basic mechanical testing is described. Key characteristics of this ultrasonic welding process are the use of flat energy directors for simplified process preparation and the use of process data for the fast definition of optimum processing conditions.
07:58
Automatic Laser-based Geometry Capture for Finite Element Analysis of Weld Beads
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2025
A process is described for acquiring near-real-time metrology of weld beads and prepare the resulting geometry automatically for finite element analysis.
10:09
Tensile Strength of Resorbable Biomaterials
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2023
Source: Peiman Shahbeigi-Roodposhti and Sina Shahbazmohamadi, Biomedical Engineering Department, University of Connecticut, Storrs, Connecticut For over 4000 years, sutures have been used as a medical intervention. The earliest records indicate linen was the biomaterial of choice. Catgut, which is still in use today, was reportedly used to treat gladiators around 150 AD. Today, there are numerous materials being used for sutures. Sutures are classified by their composition (natural or...
06:17
Measuring the Strength of Mice
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Cited by 287 •
2013
Deficits in muscular strength occur in many clinical conditions such as motor neuron disease. The inverted screen and weight lifting tests described here measure strength in mice almost exclusively, with minimal influence of factors such as coordination.
03:05
Acid Strength and Molecular Structure
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2020
Binary Acids and Bases In the absence of any leveling effect, the acid strength of binary compounds of hydrogen with nonmetals (A) increases as the H-A bond strength decreases down a group in the periodic table. For group 17, the order of increasing acidity is HF < HCl < HBr < HI. Likewise, for group 16, the order of increasing acid strength is H2O < H2S < H2Se < H2Te. Across a row in the periodic table, the acid strength of binary hydrogen compounds increases with increasing...
FAQs
Localized laser or electrical energy heats the tissue interface, altering collagen and other structural proteins. As the treated region cools, these changes help create a continuous bond, while later remodeling can further influence mechanical integrity. The resulting strength therefore depends not only on energy delivery, but also on how the fused interface develops during cooling and healing.
Energy dose, tissue type, hydration, and healing time are central variables. The energy dose affects how extensively the interface is heated, whereas tissue composition can change how structural proteins respond. Hydration may alter tissue behavior during joining, and strength can change as healing and remodeling proceed. Researchers consider these factors when comparing weld performance.
Each test examines resistance to a different mechanical challenge. Tensile testing measures how the joined tissue responds to pulling forces, burst-pressure testing evaluates its ability to withstand internal pressure, and shear testing examines resistance to sliding forces across the interface. Using these measurements helps researchers characterize weld performance under conditions relevant to different bioengineering applications.
Researchers first create a fused tissue interface with localized laser or electrical energy, then allow the region to cool and, when relevant, undergo healing or remodeling. They subsequently apply tensile, burst-pressure, or shear testing to quantify mechanical integrity. Recording tissue type, hydration, energy dose, and healing time helps relate the measured outcome to experimental conditions.
These measurements support development of minimally invasive surgical tools, wound-closure methods, and tissue-engineering strategies. A strength result indicates how reliably a fused interface may tolerate tension, pressure, or shear, helping investigators compare design approaches. The findings can guide efforts to improve repair reliability and reduce dependence on sutures or staples.
Mechanical testing provides evidence about whether an energy-created tissue interface can maintain integrity under relevant forces. This information is important when designing closure methods intended to improve repair reliability while reducing sutures or staples. In bioengineering, comparing tensile, pressure, and shear outcomes also helps match a joining strategy to the mechanical demands of its intended use.