Three-Point Bending

The rigidity of catheter, stent, or endovascular device is measured using a three point deflection method. The sample rests perpendicular to two lower static supports, with an applied deflection site centered between them. A displacement is applied at a fixed rate while measuring the resultant force. The test stops when the displacement reaches 0.2 x span length.

Test Procedure

The sample rests perpendicular to two lower static supports, with an applied deflection site centered between them. The spacing of the two supports is determined by the protocol.  A displacement is applied using a piston at a fixed rate while measuring the resultant force. The test stops when the displacement reaches 0.2 x span length.

Equipment

-Three-point deflection test bench with piston and stepper motor

-Regulated temperature bath

-Calibrated load cell

-Calibrated gauge blocks

-Data acquisition system

Measured Parameters

Displacements and forces are recorded.

Service Levels

Applicable Standards

  • ASTM F2606 – 08(2014)
    Standard Guide for Three-Point Bending of Balloon Expandable Vascular Stents and Stent Systems

  • ISO 25539-2:2020
    Cardiovascular implants — Endovascular devices — Part 2: Vascular stents

Related Tests

OLE0809


ViVitro Labs Advantages

Many companies look to academia to handle their testing needs due to the reduced cost. With ViVitro Laboratory Services you gain the following advantages:

Time to Market
We understand how critical your timelines are. Our expertise and experience ensure your schedule is met and our commitments are delivered on time.

ISO 17025 Accredited
For studies used for regulatory approval this is a must. Accredited by A2LA and Cofrac.

Free Initial Consultations
All of our studies are scoped via no-cost, no obligation, collaborative consultation.

Guaranteed Confidentiality
We happily provide Non-Disclosure Agreements for all services, including initial consultation.

Join over 5000 cardiovascular device professionals who receive our testing and engineering insights and tips every month.