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Tensile Testing of Soft Biological Tissues
With continued growth in the biomaterials market, characterization of the mechanical properties of soft tissues has become a rising interest. These properties allow for the understanding of tissue function and injury mechanisms, aiding engineers and researchers in the development of bio-engineered tissues, computer assisted and remote robotic surgical methods, and injury prevention recommendations. One of the challenges in testing soft tissues arises in gripping of the specimens. Biological tissues are often times wet, slippery or delicate. Any combination of these characteristics leaves the existing test methods far below the ideal gripping solution. The ultimate goal lies in the fixation of soft biological tissues without causing premature failure or slippage.
Applications 5/10/2012 11.0 KB
Tensile Testing of Hydrogels In a Temperature-Controlled Bath
Hydrogels are widely used in the biomedical industry for applications such as coatings for catheters, contact lenses, scaffolds, and wound dressings because these materials have the ability to absorb fluids and swell up to 2000 times their original size. Hydrogels are often implanted into the body to provide medical benefits and therefore
Applications 5/10/2012 0.6 MB
Tensile Testing of Nitinol Wire in Strain Control Using the AVE
The major challenge in testing Nitinol is accurate strain measurements. The crosshead position or LVDT reading does not provide the accuracy necessary to achieve specific strain criteria specified in ASTM standards.
Applications 5/10/2012 402.8 KB
Advanced Video Extensometer (AVE) Marking Techniques for Soft Tissue Testing
Extensometers are often used to accurately measure the deformation of a material under mechanical loading. Due to the fragile nature of biological soft tissues, such as fascia, skin, and intestinal lining, a non-contacting extensometer is the ideal solution for measuring tensile strain in these specimens.
Applications 5/10/2012 111.5 KB
Tensile Testing of Contact Lenses in a Temperature-Controlled Bath
Being the most widely used medical devices in the world Tensile Testing of Contact Lenses allows manufactures to obtain accurate data about the maximum and minimum strain of the material.
Applications 5/10/2012 205.5 KB
Testing of Medical Adhesives using a Variable Angle Peel Fixture
Medical adhesives are widely used in the biomedical industry for applications such as bandages, secondary dressings, and wound closure. The adhesive strength of these products must be clearly defined before put to use in a clinical setting. If the adhesive is not strong enough, the product may lead to infection or poor healing. If the adhesive is too strong, the underlying tissue may become damaged upon removal.
Applications 5/10/2012 269.4 KB