Medical Engineering Technologies - Medical Device Tensile Test

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Computer assisted bone remodelling studies help prosthetic manufacturers target their product designs on particular clinical needs. Optimisation and remodelling analysis is available through MET combined with: clinical model development, FE analysis, bone density mapping, loading analysis and remodelling studies. All this leads to optimisation of geometric designs, surface features, porosity and all the details of the implant.

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Material Testing for Product Development

Material selection is a crucial element in the early stages of developing a new product. Confidence in the performance properties and storage stability is essential to allow a project to proceed efficiently. MET's environmental chambers are used by clients to provide accelerated ageing for materials which are then tested in our laboratory. We can compare properties for fresh product and aged product to provide the design inputs to move your projects forward.

tensile testing

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Blister Packing Cost Effectively

Efficiency can be hard to achieve when packing medical devices into blisters. When production rates are not high many manufacturers source pre-formed blister trays externally. Lead times can be long and minimum order quantities high. In addition detailed incoming inspection is required as trays can be distorted in transport and storage and hence become more difficult to seal.

When using the RAMAC combined tray former/sealer trays are produced on demand. This reduces the opportunity for distortion; the storage space required and inventory costs. Typically 5,000 flat sheets of rigid PETG for forming 100mm square trays might cost 250 Euro and be available within a few days. Quality goes up and costs go down, perfect.

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Stent and Vascular Device Testing

As part of our 'excellence in medical device testing' programme MET has published an article on Endovascular Device Testing. This article will be useful to development engineers, QA engineers and regulatory professionals. It is published in the May edition of European Medical Device Technology.

The article can be found here.

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Efficient Blister Tray Packing

MET's first priority for blister lid sealing is the seal quality. We specify only the most rigid and robust medical tray sealers. For situations requiring efficient production we are now supplying the RAMAC combined tray forming / lid sealing machine.

The RAMAC 525 work station provides an efficient platform for packing: components, orthopaedics, kits, instruments, catheters and much more. The forming tools are liquid cooled, with vacuum and air plug forming techniques. The sealing tools deliver top quality seals and the PLC retains a large number of programmes to give that extra flexibility.

No need to stock a wide range of blister trays. Forming tool changes on the RAMAC 525 are completed in just a couple of minutes.

Lid-stock and tray forming materials are available from MET also.

For more information, please use our contacts page to request a call back.

tray-forming-and-sealing-workstation

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Force Testing - Medical Devices

Tensile, compression and torque tests are all important in the development of medical devices. Force and torque gauges combine with test stands to form measurement systems used by quality control, engineering, and manufacturing professionals throughout the medical industries. They are used in product validation and also to assess and ensure quality in production. All our gauges are supplied calibrated.

Tensile Testing Equipment

tensile-gauge-for device-testing

MET provides a complete range of test gauges and machines for product testing: joint strengths, material strength, insertion / removal forces, elasticity, compressibility and for performing package 'seal peel tests'.

Series 5 advanced digital force gauges are designed for tension and compression force testing in numerous applications across virtually every industry, with capacities from 0.12 lb to 500 lb (0.5 N to 2500 N). The gauges feature an industry-leading peak sampling rate of 7,000 Hz, producing accurate results even for quick-action tests. Accuracy is ±0.1% of full scale ±1 digit, and resolution is 1/5000. Data can be transferred to a PC or other data collector via USB, RS-232, Mitutoyo (Digimatic), or analog outputs.

On-board data memory for up to 1000 readings is included, as are statistical calculations and output to a PC. Integrated set points with indicators are ideal for pass-fail testing and for triggering external devices such as an alarm, relay, or test stand. The gauges are overload protected to 150% of capacity, and an analogue load bar is shown on the display for graphical representation of applied force.

The Series 5's averaging mode addresses the need to record the average force over time, useful in applications such as peel testing, while external trigger mode makes switch activation testing simple and accurate. An ergonomic, reversible aluminium design allows for hand held use or test stand mounting for more sophisticated testing requirements. Series 5 force gauges are directly compatible with Mark-10 test stands, grips, and software.

Technical Features:

High-speed 7,000 Hz peak sampling rate
USB, RS-232, Mitutoyo, and analogue output
Large backlit graphic display
1,000-point data memory with statistics (min, max, mean, standard deviation) and outputs
Live load bar graph with set point markers
Programmable set points, with alarms and outputs
Peak readings and set points always displayed
Averaging mode - calculates average readings over time
External trigger mode - for switch contact testing or remotely stopping display update
Automatic data output via USB/RS-232
5 selectable units of measurement
Configurable audio alarms and key tones
Password protection, configurable for individual keys and calibration

Motorised Test Stand

medical device tensile test

MET offers a wide range of vertical and horizontal motorised test stands for force and torque measurement. The primary advantage of motorised systems is providing constant test speed. Some models can be programmed for advanced test sequences to accommodate demanding applications. All motorized test stands carry the CE mark. Manual test stands are also available.

These adaptable test stands, for tension and compression testing applications up to 300 lb (1.5 kN), can be controlled from the front panel or via computer. The menu structure is intuitive allowing quick, simple set up and operation. A password can be programmed to prevent unauthorized changes.

With a rugged, modular design this test stand is a compelling solution for applications in laboratory and production environments.

The ESM301 allows a travel distance of 11.5", while the ESM301L features a travel distance of 18".

Tensile Test Stand Data Sheet

Torque Test

medical device torque test

The BGI Force / Torque Gauge is a unique product which works in combination with a selection of interchangeable remote force and torque sensors. These sensors cover a variety of force measurement and torque measurement applications and are available in a broad range of capacities.