Surgical Sutures and Mesh Testing Basics and Equipment

Posted by Debbi Cohen on Tue, Jan 25, 2011

The term Medical textile can be used to describe a wide range of products, including: gauze, bandages, medical clothing, and implantable biomaterials. This post refers specifically to the mechanical property testing of implantable mesh and sutures used in surgical applications.  

Read More

Topics: ASTM Tests, Biomedical, Textile, Tensile Test, implants, Biaxial, Tissue, Heating Cooling Chamber

ASTM D5034 Breaking Strength and Elongation of Textile Fabrics How to Guide

Posted by Andrew DeWolfe on Wed, Jan 19, 2011

ASTM D5034 is a popular testing standard for those needing to determine the breaking strength and elongation of woven, nonwoven, and felted fabrics and textiles. This quick summary is intended to help you understand the basic grab test procedure and the equipment you need to perform this test with accuracy. For a complete description of the test, please refer to ASTM D5034.

Read More

Topics: MTESTQuattro, ASTM Tests, Textile, Tensile Test, eXpert 2600, Packaging

Medical Needle Puncture and Bend Testing Results

Posted by Debbi Cohen on Tue, Jan 18, 2011

Achieving a high standard of manufacturing quality for medical hypodermic needles is needed to ensure patient comfort and enable practitioners to accurately deploy and extract fluids with a syringe. During the product development process, needles can be subjected to flexure, tensile, and puncture tests to reach this required level of production consistency. Using ADMET testing equipment helps you perform these tests with accuracy while lowering your product development and manufacturing costs.

Read More

Topics: Metals, ASTM Tests, Biomedical, Tensile Test, Bend Testing, delivery device

ASTM E8 Metal Tensile Test

Posted by Nicholas Schaulsohn on Tue, Dec 21, 2010



For more information on ADMET testing systems for metal applications, click here.

Read More

Topics: Metals, ASTM Tests, Tensile Test, Testing Tips

Strain Rate Sensitivity Example - Wire Tie Tensile Test

Posted by Nicholas Schaulsohn on Thu, Nov 18, 2010

Wire ties were pulled until fracture. Table and force-extension curves show how test speed affects peak load and maximum elongation. As the speed was doubled from 2 to 4 inches per minute, the maximum elongation was reduced by almost half. As the speed was increased from 2 to 16 inches per minute, the maximum force increased by 7.5%.

Read More

Topics: Metals, Tensile Test, Testing Tips

ASTM F384- Testing Systems for Angled Fixation Devices

Posted by Debbi Cohen on Wed, Sep 22, 2010

This test method aims to test the mechanical properties of an angled fixation device not the material component. Angled Fixation Devices are used to treat fractures.

Read More

Topics: Biomedical, Bend Testing, metal, implants, Fatigue

Testing Systems for F1541- External Skeletal Fixation-Prosthetic

Posted by Debbi Cohen on Mon, Sep 20, 2010

ASTM F1541 encompasses many different testing requirements for characterizing external skeletal fixation devices (ESFD's) This specification is used for many fixation devices and applications, Joint prostheses, Modular prostheses, Osteosynthesis, Ring elements, Staples, Subassembly (frame), Synthetic bone, and other implant characteristics. Listed below;a summary of each Annex and recommendations for the type of Testing System needed to perform the test procedure. 

Read More

Topics: Compression Test, ASTM Tests, Biomedical, implants, Biaxial, prothesis

ASTM F2193 Testing System-Metallic Screws, Plates, Rods

Posted by Debbi Cohen on Tue, Sep 14, 2010

ASTM F2193 encompasses varied test annexes to determine the strength, stiffness, and durability of spinal screws.

Read More

Topics: ASTM Tests, Biomedical, Bend Testing, implants

ASTM F1820 Testing System for strength of Modular Acetabular Shell and Liner

Posted by Debbi Cohen on Tue, Sep 14, 2010

ASTM F1820- Determines the Axial Disassembly Force of a Modular Acetabular Device. Examples are Hip and Shoulder Prothetic Implants. These implants need to be tested in various ways. One way is to analyze the acetabular Liners attachment strength or axial locking strength is when attached to an acetabular Shells.  This determines if the liner is matched properly with the designated shell. This test requires an ADMET single or dual column testing system depending on the size of the shell.

Read More

Topics: ASTM Tests, Biomedical, implants, prothesis

ASTM F2258- Tensile Strength Tissue Adhesive -Wound Closure Testing System

Posted by Debbi Cohen on Tue, Sep 14, 2010

ASTM F2258 describes the testing procedure to obtain data to compare adhesive strengths of tissue adhesives intended for use as surgical adhesives or sealants, or both on soft tissue. 

Read More

Topics: ASTM Tests, Biomedical, Tensile Test, Adhesive, Tissue