Tensile Testing of Surgical Sutures Using Straight-Pull and Knot-Pull Tests
Sutures are used in a variety of different surgical procedures to close wounds and aid in tissue healing. They are manufactured from a variety of different absorbable and unabsorbable materials, and may be a single filament or braided with or without a coating. Tensile strength is a critical measure of performance during and after surgical procedures. The strength of different knotting techniques must also be evaluated. Precise, consistent and reliable measures of strength and strain are essential for product development and quality control.
For this application we recommend a 3345 frame with a 1 kN load cell and 1 kN capacity pneumatic cord and yarn grips. These cord and yarn grips are instrumental to successfully conducting tensile tests on suture material for the following reasons:
- Ensuring perfect alignment of the specimen in the grips
- Reducing stress concentration at grip faces
- Preventing slipping with increased gripping force
- Simplifying method for loading specimen in grips (as compared with standard capstan grips)
Instron 3300 Series Universal Testing Systems for Tensile, Compression, Bend, and other material property tests.
- 12.0 MB
Bluehill® 3 is the newest version of Instron’s widely popular Bluehill Software, designed to meet the demands of any level of user from educators and test technicians to, quality engineers and laboratory managers. Compatible with 5900, 3300 and 5500 systems.
- 2.0 MB